10. Record Description of the GRAS Level 1b Products
Table of Contents

10. Record Description of the GRAS Level 1b Products

This GRAS 1a description corresponds to the GRAS Level 1 PFS [RD6] Issue v7B and the Generic PFS [RD3] Issue v7B.

In the tables below, coloured items have the following meanings:

         Compound data type, which consists of at least two basic or other compound data types. The name of the compound data type is shown first, followed by a list of the items contained within it.
  Dimension parameter for variable product fields.
 

Summary of Product Format Version record contents history

  PFV = 10.0
Record name Record version
mphr 2
sphr 3
viadr-1b-gps-pod 3
viadr-1b-gps-clock 3
viadr-1b-tzd 3
viadr-1b-station-clock 3
viadr-1b-metop-pod 3
viadr-1b-metop-clock 3
viadr-1b-eop 5
viadr-1b-metop-attitude 3
mdr-1b 4

If more than one version of a record exists, all versions are described below.

Contents:

Certain record types with formats common to all products (IPR, DMDR, GEADR, VEADR) are not included below, since they are not relevant to the average user. If required, details of these records can be found in the Generic PFS [RD3].

Note: An entry of 'var' in the 'Field size' or 'Offset' columns below indicates that the entry cannot be specified exactly because of variable dimensions. To compute field sizes and offsets, please see the PFS [RD6] for more detailed information.

MPHR ( name 'mphr', class 1, subclass 0, version 2 )

Name Description Scaling factor Units Dim1 Dim2 Dim3 Dim4 Type Type size Field size Offset
RECORD_HEADER Generic Record Header     1 1 1 1 REC_HEAD 20 20 0
Product Details
PRODUCT_NAME Complete name of the product

1 1 1 1 string 67 100 20
PARENT_PRODUCT_NAME_1 Name of the parent product from which this product has been produced. For Level 0 products, this field is filled with lower case x's.

1 1 1 1 string 67 100 120
PARENT_PRODUCT_NAME_2 Name of the parent product from which this product has been produced. For Level 0 products or products for which this is not appropriate, this field is filled with lower case x's.

1 1 1 1 string 67 100 220
PARENT_PRODUCT_NAME_3 Name of the parent product from which this product has been produced. For Level 0 products or products for which this is not appropriate, this field is filled with lower case x's.

1 1 1 1 string 67 100 320
PARENT_PRODUCT_NAME_4 Name of the parent product from which this product has been produced. For Level 0 products or products for which this is not appropriate, this field is filled with lower case x's.

1 1 1 1 string 67 100 420
INSTRUMENT_ID Instrument identification

1 1 1 1 enumerated 4 37 520
INSTRUMENT_MODEL Instrument Model identification

1 1 1 1 enumerated 3 36 557
PRODUCT_TYPE Product Type

1 1 1 1 enumerated 3 36 593
PROCESSING_LEVEL Processing Level Identification

1 1 1 1 enumerated 2 35 629
SPACECRAFT_ID Spacecraft identification

1 1 1 1 enumerated 3 36 664
SENSING_START UTC Time of start of sensing data in this object (PDU, ROI or Full Product)

1 1 1 1 time 15 48 700
SENSING_END UTC Time of end of sensing data in this object (PDU, ROI or Full Product)

1 1 1 1 time 15 48 748
SENSING_START_THEORETICAL Theoretical UTC Time of start of sensing data in the dump from which this object is derived. This data is the predicted start time at the MPF level.

1 1 1 1 time 15 48 796
SENSING_END_THEORETICAL Theoretical UTC Time of end of sensing data in the dump from which this object is derived. This data is the predicted end time at the MPF level.

1 1 1 1 time 15 48 844
PROCESSING_CENTRE Processing Centre Identification

1 1 1 1 enumerated 4 37 892
PROCESSOR_MAJOR_VERSION Processing chain major version number

1 1 1 1 uinteger 5 38 929
PROCESSOR_MINOR_VERSION Processing chain minor version number

1 1 1 1 uinteger 5 38 967
FORMAT_MAJOR_VERSION Dataset Format Major Version number

1 1 1 1 uinteger 5 38 1005
FORMAT_MINOR_VERSION Dataset Format Minor Version number

1 1 1 1 uinteger 5 38 1043
PROCESSING_TIME_START UTC time of the processing at start of processing for the product

1 1 1 1 time 15 48 1081
PROCESSING_TIME_END UTC time of the processing at end of processing for the product

1 1 1 1 time 15 48 1129
PROCESSING_MODE Identification of the mode of processing

1 1 1 1 enumerated 1 34 1177
DISPOSITION_MODE Identification of the disposition mode

1 1 1 1 enumerated 1 34 1211
RECEIVING_GROUND_STATION Acquisition Station Identification

1 1 1 1 enumerated 3 36 1245
RECEIVE_TIME_START UTC time of the reception at CDA for first Data Item

1 1 1 1 time 15 48 1281
RECEIVE_TIME_END UTC time of the reception at CDA for last Data Item

1 1 1 1 time 15 48 1329
ORBIT_START Start Orbit Number, counted incrementally since launch

1 1 1 1 uinteger 5 38 1377
ORBIT_END Stop Orbit Number

1 1 1 1 uinteger 5 38 1415
ACTUAL_PRODUCT_SIZE Size of the complete product
bytes
 1 1 1 1 uinteger 11 44 1453
ASCENDING NODE ORBIT PARAMETERS
STATE_VECTOR_TIME Epoch time (in UTC) of the orbital elements and the orbit state vector. this corresponds to the time of crossing the ascending node for ORBIT_START
UTC
 1 1 1 1 longtime 18 51 1497
SEMI_MAJOR_AXIS Semi major axis of orbit at time of the ascending node crossing.
mm
 1 1 1 1 integer 11 44 1548
ECCENTRICITY Orbit eccentricity at time of the ascending node crossing
 10^6
1 1 1 1 integer 11 44 1592
INCLINATION Orbit inclination at time of the ascending node crossing
 10^3
 deg
 1 1 1 1 integer 11 44 1636
PERIGEE_ARGUMENT Argument of perigee at time of the ascending node crossing
 10^3
 deg
 1 1 1 1 integer 11 44 1680
RIGHT_ASCENSION Right ascension at time of the ascending node crossing
 10^3
 deg
 1 1 1 1 integer 11 44 1724
MEAN_ANOMALY Mean anomaly at time of the ascending node crossing
 10^3
 deg
 1 1 1 1 integer 11 44 1768
X_POSITION X position of the orbit state vector in the orbit frame at ascending node
 10^3
 m
 1 1 1 1 integer 11 44 1812
Y_POSITION Y position of the orbit state vector in the orbit frame at ascending node
 10^3
 m
 1 1 1 1 integer 11 44 1856
Z_POSITION Z position of the orbit state vector in the orbit frame at ascending node
 10^3
 m
 1 1 1 1 integer 11 44 1900
X_VELOCITY X velocity of the orbit state vector in the orbit frame at ascending node
 10^3
 m/s
 1 1 1 1 integer 11 44 1944
Y_VELOCITY Y velocity of the orbit state vector in the orbit frame at ascending node
 10^3
 m/s
 1 1 1 1 integer 11 44 1988
Z_VELOCITY Z velocity of the orbit state vector in the orbit frame at ascending node
 10^3
 m/s
 1 1 1 1 integer 11 44 2032
EARTH_SUN_DISTANCE_RATIO Earth-Sun distance ratio - ratio of current Earth-Sun distance to Mean Earth-Sun distance

1 1 1 1 integer 11 44 2076
LOCATION_TOLERANCE_RADIAL Nadir Earth location tolerance radial
m
 1 1 1 1 integer 11 44 2120
LOCATION_TOLERANCE_CROSSTRACK Nadir Earth location tolerance cross-track
m
 1 1 1 1 integer 11 44 2164
LOCATION_TOLERANCE_ALONGTRACK Nadir Earth location tolerance along-track
m
 1 1 1 1 integer 11 44 2208
YAW_ERROR Constant Yaw attitude error
 10^3
 deg
 1 1 1 1 integer 11 44 2252
ROLL_ERROR Constant Roll attitude error
 10^3
 deg
 1 1 1 1 integer 11 44 2296
PITCH_ERROR Constant Pitch attitude error
 10^3
 deg
 1 1 1 1 integer 11 44 2340
LOCATION SUMMARY
SUBSAT_LATITUDE_START Latitude of sub-satellite point at start of the data set
 10^3
 Deg
 1 1 1 1 integer 11 44 2384
SUBSAT_LONGITUDE_START Longitude of sub-satellite point at start of the data set
 10^3
 Deg
 1 1 1 1 integer 11 44 2428
SUBSAT_LATITUDE_END Latitude of sub-satellite point at end of the data set
 10^3
 Deg
 1 1 1 1 integer 11 44 2472
SUBSAT_LONGITUDE_END Longitude of sub-satellite point at end of the data set
 10^3
 Deg
 1 1 1 1 integer 11 44 2516
Leap Second Information
LEAP_SECOND Occurrence of Leap second within the product. Field is set to -1, 0 or +1 dependent upon occurrence of leap second and direction.

1 1 1 1 integer 2 35 2560
LEAP_SECOND_UTC UTC time of occurrence of the Leap Second (If no leap second in the product, value is null)

1 1 1 1 time 15 48 2595
Record counts
TOTAL_RECORDS Total count of all records in the product

1 1 1 1 uinteger 6 39 2643
TOTAL_MPHR Total count of all MPHRs in product (should always be 1!)

1 1 1 1 uinteger 6 39 2682
TOTAL_SPHR Total count of all SPHRs in product (should be 0 or 1 only)

1 1 1 1 uinteger 6 39 2721
TOTAL_IPR Total count of all IPRs in the product

1 1 1 1 uinteger 6 39 2760
TOTAL_GEADR Total count of all GEADRs in the product

1 1 1 1 uinteger 6 39 2799
TOTAL_GIADR Total count of all GIADRs in the product

1 1 1 1 uinteger 6 39 2838
TOTAL_VEADR Total count of all VEADRs in the product

1 1 1 1 uinteger 6 39 2877
TOTAL_VIADR Total count of all VIADRs in the product

1 1 1 1 uinteger 6 39 2916
TOTAL_MDR Total count of all MDRs in the product

1 1 1 1 uinteger 6 39 2955
Record Based Generic Quality Flags
COUNT_DEGRADED_INST_MDR Count of MDRs with degradation due to instrument problems

1 1 1 1 uinteger 6 39 2994
COUNT_DEGRADED_PROC_MDR Count of MDRs with degradation due to processing problems

1 1 1 1 uinteger 6 39 3033
COUNT_DEGRADED_INST_MDR_BLOCKS Count of the number of blocks of MDRs degraded due to degraded instrument

1 1 1 1 uinteger 6 39 3072
COUNT_DEGRADED_PROC_MDR_BLOCKS Count of the number of blocks of MDRs degraded due to degraded processing

1 1 1 1 uinteger 6 39 3111
Time Based Generic Quality Flags
DURATION_OF_PRODUCT The duration of the product in milliseconds
ms
 1 1 1 1 uinteger 8 41 3150
MILLISECONDS_OF_DATA_PRESENT The total amount of data present in the product
ms
 1 1 1 1 uinteger 8 41 3191
MILLISECONDS_OF_DATA_MISSING The total amount of data missing from the product
ms
 1 1 1 1 uinteger 8 41 3232
Regional Product Information
SUBSETTED_PRODUCT Set when product has been subset (e.g. geographically subset using a region of interest filter). Implies the presence of one or more UMARF GIADRs in GAD section for product retrieved from UMARF.

1 1 1 1 boolean 1 34 3273
Total: 3307

SPHR ( name 'sphr', class 2, subclass 1, version 3 )

Name Description Scaling factor Units Dim1 Dim2 Dim3 Dim4 Type Type size Field size Offset
RECORD_HEADER Generic Record Header     1 1 1 1 REC_HEAD 20 20 0
GOBS_VER Gras Onboard Software version number

1 1 1 1 string 40 73 20
GRAS_ID GRAS instrument identification

1 1 1 1 enumerated 3 36 93
EARTH_MODEL_ID Earth model identification

1 1 1 1 enumerated 3 36 129
METOP_MANOEUVRE_FLAG Metop manoeuvre flag

1 1 1 1 boolean 1 34 165
METOP_MANOEUVRE_START Start time of the manoeuvre
s
 1 1 1 1 longtime 18 51 199
METOP_MANOEUVRE_END End time of the manoeuvre
s
 1 1 1 1 longtime 18 51 250
MANOEUVRE_IMP_END Time from the end of the manoeuvre after which the manoeuvre does not any more affect the MDRs
s
 1 1 1 1 integer 10 43 301
Total: 344

VIADR ( name 'viadr-1b-gps-pod', class 7, subclass 21, version 3 )

Name Description Scaling factor Units Dim1 Dim2 Dim3 Dim4 Type Type size Field size Offset
RECORD_HEADER Generic Record Header     1 1 1 1 REC_HEAD 20 20 0
Occulting_GPS_NRT_orbit_arc
START_VALIDITY Start time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 20
END_VALIDITY End time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 28
SAMPLE_INTERVAL Time interval of the state vector samples
s
 1 1 1 1 uinteger2 2 2 36
NUMBER_SATELLITE Number of satellites used in the POD solution

1 1 1 1 uinteger1 1 1 38
PRODUCT_TYPE NRT or enhanced POD product

1 1 1 1 enumerated 1 1 39
NUMBER_OF_SATELLITES Number of GPS satellites, N

1 1 1 1 uinteger1 1 1 40
GPS_ID GPS satellite identification

N 1 1 1 uinteger1 1 var 41
X_POSITION_UNCERTAINTY Satellite position x coordinate uncertainty
 10^6
 m
 N 1 1 1 integer8 8 var var
Y_POSITION_UNCERTAINTY Satellite position y coordinate uncertainty
 10^6
 m
 N 1 1 1 integer8 8 var var
Z_POSITION_UNCERTAINTY Satellite position z coordinate uncertainty
 10^6
 m
 N 1 1 1 integer8 8 var var
X_VELOCITY_UNCERTAINTY Satellite velocity x uncertainty
 10^6
 m/s
 N 1 1 1 integer8 8 var var
Y_VELOCITY_UNCERTAINTY Satellite velocity y uncertainty
 10^6
 m/s
 N 1 1 1 integer8 8 var var
Z_VELOCITY_UNCERTAINTY Satellite velocity z uncertainty
 10^6
 m/s
 N 1 1 1 integer8 8 var var
CLOCK_OFFSET_UNCERTAINTY Satellite transmitter clock offset uncertainty
 10^9
 s
 N 1 1 1 integer8 8 var var
CLOCK_DRIFT_UNCERTAINTY Satellite transmitter clock rate of change uncertainty
 10^9
 s/s
 N 1 1 1 integer8 8 var var
NUMBER_OF_EPOCHS Number of epochs for each GPS satellite, M

N 1 1 1 uinteger2 2 var var
GPS_ORBIT_ARC     M N 1 1 GPS_STATE_VECTOR 72 var var
EPOCH_TIME Time stamp in reference time
 10^9
 s
 1 1 1 1 uinteger8 8 8  
SATELLITE_POSITION_X Satellite position x at epoch time
 10^6
 m
 1 1 1 1 integer8 8 8  
SATELLITE_POSITION_Y Satellite position y at epoch time
 10^6
 m
 1 1 1 1 integer8 8 8  
SATELLITE_POSITION_Z Satellite position z at epoch time
 10^6
 m
 1 1 1 1 integer8 8 8  
SATELLITE_VELOCITY_X Satellite velocity v_x at epoch time
 10^6
 m/s
 1 1 1 1 integer8 8 8  
SATELLITE_VELOCITY_Y Satellite velocity v_y at epoch time
 10^6
 m/s
 1 1 1 1 integer8 8 8  
SATELLITE_VELOCITY_Z Satellite velocity v_z at epoch time
 10^6
 m/s
 1 1 1 1 integer8 8 8  
CLOCK_OFFSET Clock offset
 10^9
 s
 1 1 1 1 integer8 8 8  
CLOCK_DRIFT Satellite transmitter clock rate of change
 10^9
 s/s
 1 1 1 1 integer8 8 8  
Total: var

VIADR ( name 'viadr-1b-gps-clock', class 7, subclass 22, version 3 )

Name Description Scaling factor Units Dim1 Dim2 Dim3 Dim4 Type Type size Field size Offset
RECORD_HEADER Generic Record Header     1 1 1 1 REC_HEAD 20 20 0
GPS_clock_bias_estimates
START_VALIDITY Start time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 20
END_VALIDITY End time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 28
SAMPLE_INTERVAL Time interval of the clock offset samples
s
 1 1 1 1 uinteger2 2 2 36
GPS_NUMBER Number of satellites in solution

1 1 1 1 uinteger1 1 1 38
PRODUCT_TYPE NRT or enhanced POD product

1 1 1 1 enumerated 1 1 39
NUMBER_OF_SATELLITES Number of GPS satellites, M

1 1 1 1 uinteger1 1 1 40
GPS_ID GPS satellite identification

M 1 1 1 uinteger1 1 var 41
CLOCK_QUALITY Quality indicator for each GPS satellite

M 1 1 1 uinteger8 8 var var
NUM_EPOCHS Number of clock solution epochs, N

M 1 1 1 integer2 2 var var
GPS_CLOCK_OFFSETS     N M 1 1 GPS_CLOCKS 16 var var
EPOCH_TIME Time stamp in reference time
 10^9
 s
 1 1 1 1 uinteger8 8 8  
GPS_CLOCK_OFFSET Clock offset estimate
 10^20
 s
 1 1 1 1 integer8 8 8  
Total: var

VIADR ( name 'viadr-1b-tzd', class 7, subclass 23, version 3 )

Name Description Scaling factor Units Dim1 Dim2 Dim3 Dim4 Type Type size Field size Offset
RECORD_HEADER Generic Record Header     1 1 1 1 REC_HEAD 20 20 0
Tropospheric_delay_product
START_VALIDITY Start time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 20
END_VALIDITY End time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 28
STATION_NUMBER Number of stations in interval

1 1 1 1 uinteger2 2 2 36
PRODUCT_TYPE NRT or enhanced POD product

1 1 1 1 enumerated 1 1 38
TROPOS_NUMBER_PARAMETERS Number of tropospheric parameters for the stations

1 1 1 1 uinteger2 2 2 39
TROPOS_ESTIMATE_INTERVAL Estimation interval
 10^6
 s
 1 1 1 1 uinteger8 8 8 41
NUMBER_OF_STATIONS Number of fiducial stations, M

1 1 1 1 uinteger2 2 2 49
STATION_ID Ground station identification

M 1 1 1 string 4 var 51
NUM_EPOCHS Number of epochs, T

M 1 1 1 uinteger2 2 var var
STATION_TZD_ESTIMATES     T M 1 1 TROP_DELAY 72 var var
EPOCH_TIME Time stamp in reference time
 10^9
 s
 1 1 1 1 uinteger8 8 8  
MEASURED_SURFACE_PRESSURE Measured surface pressure at the station location
 10^3
 mbar
 1 1 1 1 uinteger8 8 8  
MEASURED_SURFACE_TEMPERATURE Measured surface temperature at the station location
 10^3
 K
 1 1 1 1 uinteger8 8 8  
MEASURED_PARTIAL_WV_PRESSURE Measured partial pressure of the water vapour at surface at the station location
 10^3
 mbar
 1 1 1 1 uinteger8 8 8  
NWP_SURFACE_PRESSURE NWP surface pressure at the station location
 10^3
 mbar
 1 1 1 1 uinteger8 8 8  
NWP_SURFACE_TEMPERATURE NWP surface temperature at the station location
 10^3
 K
 1 1 1 1 uinteger8 8 8  
NWP_PARTIAL_WV_PRESSURE Partial pressure of the water vapour at surface at the station location
 10^3
 mbar
 1 1 1 1 uinteger8 8 8  
TROP0S_ZENITH_DELAY Zenith tropospheric delay estimate from the GSN
 10^6
 m
 1 1 1 1 uinteger8 8 8  
TROPOS_ZENITH_DELAY_UNCERTAINTY Uncertainty in zenith tropospheric delay estimate
 10^6
 m
 1 1 1 1 integer8 8 8  
Total: var

VIADR ( name 'viadr-1b-station-clock', class 7, subclass 24, version 3 )

Name Description Scaling factor Units Dim1 Dim2 Dim3 Dim4 Type Type size Field size Offset
RECORD_HEADER Generic Record Header     1 1 1 1 REC_HEAD 20 20 0
Ground_station_clock_bias_estimates
START_VALIDITY Start time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 20
END_VALIDITY End time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 28
ESTIMATE_INTERVAL Estimation interval for clock bias
s
 1 1 1 1 uinteger2 2 2 36
STATION_NUMBER Number of stations in solution

1 1 1 1 uinteger1 1 1 38
PRODUCT_TYPE NRT or enhanced POD product

1 1 1 1 enumerated 1 1 39
NUMBER_OF_STATIONS Number of fiducial stations, M

1 1 1 1 uinteger1 1 1 40
STATION_ID Ground station identification

M 1 1 1 string 4 var 41
CLOCK_QUALITY Quality indicator for each station

M 1 1 1 uinteger8 8 var var
NUM_EPOCHS Number of epochs, E

M 1 1 1 uinteger2 2 var var
STATION_CLOCK_OFFSETS     E M 1 1 STATION_CLOCKS 72 var var
EPOCH_TIME Time stamp in reference time
 10^9
 s
 1 1 1 1 uinteger8 8 8  
STATION_CLOCK_OFFSET Clock offset
 10^20
 s
 1 1 1 1 integer8 8 8  
STATION_CLOCK_DRIFT Clock drift
 10^9
 s/s
 1 1 1 1 integer8 8 8  
STATION_POSITION_MEASUREMENT_X Position of measurement point x (ECI)
 10^6
 m
 1 1 1 1 integer8 8 8  
STATION_POSITION_MEASUREMENT_Y Position of measurement point y (ECI)
 10^6
 m
 1 1 1 1 integer8 8 8  
STATION_POSITION_MEASUREMENT_Z Position of measurement point z (ECI)
 10^6
 m
 1 1 1 1 integer8 8 8  
STATION_VELOCITY_X Velocity v_x of the measurement point (ECI)
 10^6
 m/s
 1 1 1 1 integer8 8 8  
STATION_VELOCITY_Y Velocity v_y of the measurement point (ECI)
 10^6
 m/s
 1 1 1 1 integer8 8 8  
STATION_VELOCITY_Z Velocity v_z of the measurement point (ECI)
 10^6
 m/s
 1 1 1 1 integer8 8 8  
Total: var

VIADR ( name 'viadr-1b-metop-pod', class 7, subclass 25, version 3 )

Name Description Scaling factor Units Dim1 Dim2 Dim3 Dim4 Type Type size Field size Offset
RECORD_HEADER Generic Record Header     1 1 1 1 REC_HEAD 20 20 0
Metop_NRT_orbit_arc
START_VALIDITY Start time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 20
END_VALIDITY End time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 28
SAMPLE_INTERVAL Time interval of the state vector samples
s
 1 1 1 1 uinteger2 2 2 36
NUMBER_SATELLITE Number of GPS satellites used in POD solution

1 1 1 1 uinteger1 1 1 38
PRODUCT_TYPE NRT or enhanced POD product

1 1 1 1 enumerated 1 1 39
X_POSITION_UNCERTAINTY Satellite position x coordinate uncertainty
 10^6
 m
 1 1 1 1 integer8 8 8 40
Y_POSITION_UNCERTAINTY Satellite position y coordinate uncertainty
 10^6
 m
 1 1 1 1 integer8 8 8 48
Z_POSITION_UNCERTAINTY Satellite position z coordinate uncertainty
 10^6
 m
 1 1 1 1 integer8 8 8 56
X_VELOCITY_UNCERTAINTY Satellite velocity x uncertainty
 10^6
 m/s
 1 1 1 1 integer8 8 8 64
Y_VELOCITY_UNCERTAINTY Satellite velocity y uncertainty
 10^6
 m/s
 1 1 1 1 integer8 8 8 72
Z_VELOCITY_UNCERTAINTY Satellite velocity z uncertainty
 10^6
 m/s
 1 1 1 1 integer8 8 8 80
NUMBER_OF_EPOCHS Number of solution epochs, N

1 1 1 1 uinteger4 4 4 88
EPOCH_TIME Time stamp in reference time
 10^9
 s
 N 1 1 1 uinteger8 8 var 92
METOP_POSITION_X Satellite position x vector
 10^6
 m
 N 1 1 1 integer8 8 var var
METOP_POSITION_Y Satellite position y vector
 10^6
 m
 N 1 1 1 integer8 8 var var
METOP_POSITION_Z Satellite position z vector
 10^6
 m
 N 1 1 1 integer8 8 var var
METOP_VELOCITY_X Satellite velocity x at epoch time
 10^6
 m/s
 N 1 1 1 integer8 8 var var
METOP_VELOCITY_Y Satellite velocity y at epoch time
 10^6
 m/s
 N 1 1 1 integer8 8 var var
METOP_VELOCITY_Z Satellite velocity z at epoch time
 10^6
 m/s
 N 1 1 1 integer8 8 var var
Total: var

VIADR ( name 'viadr-1b-metop-clock', class 7, subclass 26, version 3 )

Name Description Scaling factor Units Dim1 Dim2 Dim3 Dim4 Type Type size Field size Offset
RECORD_HEADER Generic Record Header     1 1 1 1 REC_HEAD 20 20 0
Metop_NRT_orbit_arc
START_VALIDITY Start time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 20
END_VALIDITY End time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 28
SAMPLE_INTERVAL Time interval of the clock offset samples
s
 1 1 1 1 uinteger2 2 2 36
NUMBER_SATELLITE Number of GPS satellites in solution

1 1 1 1 uinteger1 1 1 38
PRODUCT_TYPE NRT or enhanced POD product

1 1 1 1 enumerated 1 1 39
CLOCK_OFFSET_UNCERTAINTY Satellite transmitter clock offset uncertainty
 10^9
 s
 1 1 1 1 integer8 8 8 40
CLOCK_DRIFT_UNCERTAINTY Satellite transmitter clock rate of change uncertainty
 10^9
 s/s
 1 1 1 1 integer8 8 8 48
NUMBER_OF_EPOCHS Number of solution epochs, N

1 1 1 1 uinteger4 4 4 56
EPOCH_TIME Time stamp in reference time
 10^9
 s
 N 1 1 1 uinteger8 8 var 60
CLOCK_OFFSET Clock offset estimate
 10^20
 s
 N 1 1 1 integer8 8 var var
CLOCK_DRIFT Satellite transmitter clock rate of change
 10^20
 s/s
 N 1 1 1 integer8 8 var var
Total: var

VIADR ( name 'viadr-1b-eop', class 7, subclass 27, version 5 )

Name Description Scaling factor Units Dim1 Dim2 Dim3 Dim4 Type Type size Field size Offset
RECORD_HEADER Generic Record Header     1 1 1 1 REC_HEAD 20 20 0
NUM_EPOCHS Number of EOP epochs, N

1 1 1 1 integer2 2 2 20
Earth_Orientation_Parameters
EPOCH Start time of the record validity
 10^9
 s
 N 1 1 1 uinteger8 8 var 22
X_POLE x-pole
 10^6
 arcsec
 N 1 1 1 integer8 8 var var
Y_POLE y-pole
 10^6
 arcsec
 N 1 1 1 integer8 8 var var
DUT1 UT1-UTC
 10^6
 s
 N 1 1 1 integer8 8 var var
EOP_STATUS Final or predicted EOP products

N 1 1 1 boolean 1 var var
D_psi Celestial pole offset in longitude
 10^6
 arcsec
 N 1 1 1 integer8 8 var var
D_eps Celestial pole offset in obliquity
 10^6
 arcsec
 N 1 1 1 integer8 8 var var
DX_POLE Uncertainty in X-Pole
 10^6
 arcsec
 N 1 1 1 integer8 8 var var
DY_POLE Uncertainty in Y-Pole
 10^6
 arcsec
 N 1 1 1 integer8 8 var var
DLOD Uncertainty in Length of day (LOD)
 10^6
 s
 N 1 1 1 integer8 8 var var
Total: var

VIADR ( name 'viadr-1b-metop-attitude', class 7, subclass 28, version 3 )

Name Description Scaling factor Units Dim1 Dim2 Dim3 Dim4 Type Type size Field size Offset
RECORD_HEADER Generic Record Header     1 1 1 1 REC_HEAD 20 20 0
Metop_attitude
START_VALIDITY Start time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 20
END_VALIDITY End time of the record validity
 10^9
 s
 1 1 1 1 uinteger8 8 8 28
NUMBER_OF_EPOCHS Number of attitude data epochs, N

1 1 1 1 uinteger4 4 4 36
EPOCH_TIME Time stamp in reference time
 10^9
 s
 N 1 1 1 uinteger8 8 var 40
METOP_STEERING_MODE Metop steering mode indicator

N 1 1 1 enumerated 1 var var
METOP_MISPOINTING_ROLL Mispointing angle Dh
 10^3
 deg
 N 1 1 1 integer8 8 var var
METOP_MISPOINTING_PITCH Mispointing angles Dx
 10^3
 deg
 N 1 1 1 integer8 8 var var
METOP_MISPOINTING_YAW Mispointing angles Dz
 10^3
 deg
 N 1 1 1 integer8 8 var var
METOP_TRUE_LATITUDE Metop true latitude angle
 10^3
 deg
 N 1 1 1 integer8 8 var var
Total: var

MDR ( name 'mdr-1b', class 8, subclass 20, version 4 )

Name Description Scaling factor Units Dim1 Dim2 Dim3 Dim4 Type Type size Field size Offset
RECORD_HEADER Generic Record Header     1 1 1 1 REC_HEAD 20 20 0
GENERIC_QUALITY_INDICATORS
DEGRADED_INST_MDR Quality of MDR has been degraded from nominal due to an instrument degradation

1 1 1 1 boolean 1 1 20
DEGRADED_PROC_MDR Quality of MDR has been degraded from nominal due to a processing degradation

1 1 1 1 boolean 1 1 21
MEASUREMENT_DATA
START_EPOCH Epoch of the measurement start
 10^9
 s
 1 1 1 1 uinteger8 8 8 22
END_EPOCH Epoch of the measurement end
 10^9
 s
 1 1 1 1 uinteger8 8 8 30
PRED_START_EPOCH Predicted start epoch of the measurement from occultation table
 10^6
 s
 1 1 1 1 uinteger8 8 8 38
PRED_END_EPOCH Predicted end epoch of the measurement from occultation table
 10^6
 s
 1 1 1 1 uinteger8 8 8 46
PRED_START_LAT Predicted start latitude of the measurement
 10^3
 degree
 1 1 1 1 integer8 8 8 54
PRED_START_LONG Predicted start longitude of the measurement
 10^3
 degree
 1 1 1 1 integer8 8 8 62
PRED_END_LAT Predicted end latitude of the measurement
 10^3
 degree
 1 1 1 1 integer8 8 8 70
PRED_END_LONG Predicted end longitude of the measurement
 10^3
 degree
 1 1 1 1 integer8 8 8 78
MEASUREMENT_ID Measurement identification

1 1 1 1 string 32 32 86
ID_FAILED Measurement identification failed

1 1 1 1 boolean 1 1 118
MEASUREMENT_LENGTH Measurement length
s
 1 1 1 1 uinteger2 2 2 119
GRAS_MODE Navigation or occultation mode

1 1 1 1 boolean 1 1 121
MEASUREMENT_TYPE Rising, setting, or navigation

1 1 1 1 enumerated 1 1 122
GRAS_CHANNEL_ID GRAS channel identification

1 1 1 1 enumerated 1 1 123
GPS_OCC_ID Occulting GPS identification

1 1 1 1 uinteger1 1 1 124
OCC_GPS_HW_DELAY Estimated GPS hardware group delay
 10^15
 s
 1 1 1 1 integer8 8 8 125
OCC_GPS_HW_COR_CA GPS hardware delay correction for CA code phase
 10^9
 chips
 1 1 1 1 integer8 8 8 133
OCC_GPS_HW_COR_P1 GPS hardware delay correction for P1 code phase
 10^9
 chips
 1 1 1 1 integer8 8 8 141
OCC_GPS_HW_COR_P2 GPS hardware delay correction for P2 code phase
 10^9
 chips
 1 1 1 1 integer8 8 8 149
GPS_PIV_ID Pivot GPS identification

1 1 1 1 uinteger1 1 1 157
PIV_GPS_HW_DELAY Estimated GPS hardware group delay
 10^15
 s
 1 1 1 1 integer8 8 8 158
PIV_GPS_HW_COR_CA GPS hardware delay correction for CA code phase
 10^9
 chips
 1 1 1 1 integer8 8 8 166
PIV_GPS_HW_COR_P1 GPS hardware delay correction for P1 code phase
 10^9
 chips
 1 1 1 1 integer8 8 8 174
PIV_GPS_HW_COR_P2 GPS hardware delay correction for P2 code phase
 10^9
 chips
 1 1 1 1 integer8 8 8 182
FID_ID_DD1 Reference fiducial station identification for DD1

1 1 1 1 string 4 4 190
FID_ID_DD2 Second reference fiducial station identification for DD2

1 1 1 1 string 4 4 194
LOW_PIV_GZA_SD1 Pivot satellite elevation from GZA is below threshold in SD1 processing

1 1 1 1 boolean 1 1 198
LOW_OCC_FID_SD2 Occulting GPS satellite elevation from fiducial station is below threshold in SD2 processing

1 1 1 1 boolean 1 1 199
LOW_PIV_GZA_DD1 Pivot satellite elevation from GZA is below threshold in DD1 processing

1 1 1 1 boolean 1 1 200
LOW_PIV_FID_DD1 Pivot satellite elevation from fiducial station is below threshold in DD1 processing

1 1 1 1 boolean 1 1 201
LOW_OCC_FID_DD1 Occulting GPS satellite elevation from fiducial station is below threshold in DD1 processing

1 1 1 1 boolean 1 1 202
LOW_PIV_GZA_DD2 Pivot satellite elevation from GZA is below threshold in DD2 processing

1 1 1 1 boolean 1 1 203
LOW_PIV_FID_DD2 Pivot satellite elevation from fiducial station is below threshold in DD2 processing

1 1 1 1 boolean 1 1 204
LOW_OCC_FID_DD2 Occulting GPS satellite elevation from fiducial station is below threshold in DD2 processing

1 1 1 1 boolean 1 1 205
MEAN_OCCULTATION_RAY_TANGENT_LAT Mean latitude of the ray tangent point
 10^3
 degree
 1 1 1 1 integer8 8 8 206
MEAN_OCCULTATION_RAY_TANGENT_LONG Mean longitude of the ray tangent point
 10^3
 degree
 1 1 1 1 integer8 8 8 214
USO_FREQUENCY Nominal USO frequency used in the processing
 10^9
 Hz
 1 1 1 1 uinteger8 8 8 222
ANTENNA_REF_POINT_X Antenna reference point position vector x in SR frame
 10^6
 m
 1 1 1 1 integer8 8 8 230
ANTENNA_REF_POINT_Y Antenna reference point position vector y in SR frame
 10^6
 m
 1 1 1 1 integer8 8 8 238
ANTENNA_REF_POINT_Z Antenna reference point position vector z in SR frame
 10^6
 m
 1 1 1 1 integer8 8 8 246
METOP_COM_VECT_X Metop CoM position vector x in SR frame
 10^6
 m
 1 1 1 1 integer8 8 8 254
METOP_COM_VECT_Y Metop CoM position vector y in SR frame
 10^6
 m
 1 1 1 1 integer8 8 8 262
METOP_COM_VECT_Z Metop CoM position vector z in SR frame
 10^6
 m
 1 1 1 1 integer8 8 8 270
Q_ANA Analogue AGC active during measurement

1 1 1 1 boolean 1 1 278
INSTRUMENT_STABLE USO oven temperature has been stabilized after switch on

1 1 1 1 boolean 1 1 279
USO_TEMPERATURE_START USO oven temperature at the beginning of the measurement
 10^3
 degC
 1 1 1 1 integer4 4 4 280
USO_TEMPERATURE_END USO oven temperature at the end of the measurement
 10^3
 degC
 1 1 1 1 integer4 4 4 284
USO_TEMPERATURE_CHANGE USO oven temperature change during occultation
 10^3
 degC
 1 1 1 1 integer4 4 4 288
METOP_MANOEUVRE This MDR is affected by a Metop manoeuvre

1 1 1 1 boolean 1 1 292
METOP_STEERING_MODE Metop steering mode during the measurement

1 1 1 1 enumerated 1 1 293
L1_CA_AMP_LOW Number of times when L1-C/A amplitude level is below the specified threshold

1 1 1 1 uinteger2 2 2 294
L1_CA_AMP_TIME Epoch corresponding to the maximum impact parameter height before the amplitude has been below threshold (from the top of the atmosphere)
 10^6
 s
 1 1 1 1 integer8 8 8 296
L1_CA_IMPACT_LIMIT Maximum impact parameter height before the amplitude has been below threshold (from the top of the atmosphere)
 10^9
 m
 1 1 1 1 integer8 8 8 304
L1_P1_AMP_LOW Number of times when L1-P1 amplitude level is below the specified threshold

1 1 1 1 uinteger2 2 2 312
L1_P1_AMP_TIME Epoch corresponding to the maximum impact parameter height before the amplitude has been below threshold (from the top of the atmosphere)
 10^6
 s
 1 1 1 1 integer8 8 8 314
L1_P1_IMPACT_LIMIT Maximum impact parameter height before the amplitude has been below threshold (from the top of the atmosphere)
 10^9
 m
 1 1 1 1 integer8 8 8 322
L2_P2_AMP_LOW Number of times when L2-P2 amplitude level is below the specified threshold

1 1 1 1 uinteger2 2 2 330
L2_P2_AMP_TIME Epoch corresponding to the maximum impact parameter height before the amplitude has been below threshold (from the top of the atmosphere)
 10^6
 s
 1 1 1 1 integer8 8 8 332
L2_P2_IMPACT_LIMIT Maximum impact parameter height before the amplitude has been below threshold (from the top of the atmosphere)
 10^9
 m
 1 1 1 1 integer8 8 8 340
L1_CA_NOISE_FLAG L1-C/A noise level compared to a threshold

1 1 1 1 boolean 1 1 348
L1_P1_NOISE_FLAG L1-P1 noise level compared to a threshold

1 1 1 1 boolean 1 1 349
L2_P2_NOISE_FLAG L2-P2 noise level compared to a threshold

1 1 1 1 boolean 1 1 350
L1_CA_PSEUDORANGE_FLAG L1-C/A pseudorange outside the threshold

1 1 1 1 boolean 1 1 351
L1_P1_PSEUDORANGE_FLAG L1-P1 pseudorange outside threshold

1 1 1 1 boolean 1 1 352
L2_P2_PSEUDORANGE_FLAG L2-P2 pseudorange outside the threshold

1 1 1 1 boolean 1 1 353
USO_TEMP_NOMINAL USO temperature outside threshold

1 1 1 1 boolean 1 1 354
USO_TEMP_DRIFT_NOMINAL USO temperature drift outside threshold

1 1 1 1 boolean 1 1 355
L2_NOT_TRACKED Tracking state 15 was not achieved during measurement

1 1 1 1 boolean 1 1 356
MEASUREMENT_INCOMPLETE Part of the measurement data time sequence missing

1 1 1 1 boolean 1 1 357
ATTITUDE_MISSING Metop mispointing angles data not available

1 1 1 1 boolean 1 1 358
RS_DATA_MISSING Raw sampling mode data missing

1 1 1 1 boolean 1 1 359
LOCAL_MULTIPATH Incidence angle in the high local multipath risk directions

1 1 1 1 boolean 1 1 360
LOCAL_MULTIPATH_SOURCE Possible source of local multipath based on incidence angles

1 1 1 1 bitfield ( 2 ) 2 2 361
TELEMETRY_IN_RANGE All telemetry data is within the specified range

1 1 1 1 bitfield ( 3 ) 3 3 363
SA_FLAG Selective Availability flag

1 1 1 1 boolean 1 1 366
A_FLAG Alert flag

1 1 1 1 boolean 1 1 367
AS_FLAG Anti-spoofing flag

1 1 1 1 boolean 1 1 368
PHASE_L1 Phase residual L1 quality

1 1 1 1 boolean 1 1 369
PHASE_L2 Phase residual L2 quality

1 1 1 1 boolean 1 1 370
DOPPLER_L1 Doppler residual L1 quality

1 1 1 1 boolean 1 1 371
DOPPLER_L2 Doppler residual L2 quality

1 1 1 1 boolean 1 1 372
DOPPLER_RATE_L1 Doppler rate L1 quality

1 1 1 1 boolean 1 1 373
DOPPLER_RATE_L2 Doppler rate L2 quality

1 1 1 1 boolean 1 1 374
DOPPLER_ACC_L1 Doppler acceleration L1 quality

1 1 1 1 boolean 1 1 375
DOPPLER_ACC_L2 Doppler acceleration L2 quality

1 1 1 1 boolean 1 1 376
TEC_QUALITY TEC quality

1 1 1 1 boolean 1 1 377
TEC_DRIFT TEC drift quality

1 1 1 1 boolean 1 1 378
TEC_ACC TEC acceleration quality

1 1 1 1 boolean 1 1 379
BENDING_L1 Bending angle L1 quality

1 1 1 1 boolean 1 1 380
BENDING_L2 Bending angle L2 quality

1 1 1 1 boolean 1 1 381
NEUTRAL_BENDING Ionosphere corrected bending angle quality

1 1 1 1 boolean 1 1 382
IMPACT_L1 Impact parameter L1 quality

1 1 1 1 boolean 1 1 383
IMPACT_L2 Impact parameter L2 quality

1 1 1 1 boolean 1 1 384
L1_CA_STRAT L1-CA noise level in stratosphere

1 1 1 1 boolean 1 1 385
L1_P1_STR L1-P1 noise level in stratosphere

1 1 1 1 boolean 1 1 386
L2_P2_STRAT L2-P2 noise level in stratosphere

1 1 1 1 boolean 1 1 387
L1_CA_TROP L1-CA noise level in troposphere

1 1 1 1 boolean 1 1 388
L1_P1_TROP L1-P1 noise level in troposphere

1 1 1 1 boolean 1 1 389
L2_P2_TROP L2-P2 noise level in troposphere

1 1 1 1 boolean 1 1 390
PGE Probability of Gross Error
 10^2
1 1 1 1 uinteger2 2 2 391
ONBOARD_NAV_SOLUTION Onboard navigation solution method

1 1 1 1 enumerated 1 1 393
SELECTED_CLOCK_CORRECTION_METHOD Selected clock correction differencing method (ND/SD1/SD2/DD1/DD2)

1 1 1 1 enumerated 1 1 394
CLOCK_CORRECTION_FALLBACK_MODE Selected clock correction not possible and a fallback mode has been activated

1 1 1 1 bitfield ( 1 ) 1 1 395
SSD_AVAILABILITY Availability of the SSD data

1 1 1 1 bitfield ( 2 ) 2 2 396
BE_FLAG Bias estimation on/off

1 1 1 1 boolean 1 1 398
BE_TYPE BBE or FBE

1 1 1 1 boolean 1 1 399
BE_MODEL Atmospheric model used in bias estimation

1 1 1 1 enumerated 1 1 400
BE_HEIGHT Bias estimation height
 10^6
 m
 1 1 1 1 integer8 8 8 401
BE_WINDOW Bias estimation window half aperture
 10^6
 m
 1 1 1 1 integer8 8 8 409
BE_BIAS_ESTIMATE Bias error estimate (note: unit depends on the BE type)
 10^9
 rad or m/s
 1 1 1 1 integer8 8 8 417
LOCAL_CURVATURE_X Local radius vector of curvature x
 10^6
 m
 1 1 1 1 integer8 8 8 425
LOCAL_CURVATURE_Y Local radius vector of curvature y
 10^6
 m
 1 1 1 1 integer8 8 8 433
LOCAL_CURVATURE_Z Local radius vector of curvature z
 10^6
 m
 1 1 1 1 integer8 8 8 441
COORDINATES_OF_CENTRE_REFRACTION_X Coordinate x of the local centre of refraction
 10^6
 m
 1 1 1 1 integer8 8 8 449
COORDINATES_OF_CENTRE_REFRACTION_Y Coordinate y of the local centre of refraction
 10^6
 m
 1 1 1 1 integer8 8 8 457
COORDINATES_OF_CENTRE_REFRACTION_Z Coordinate z of the local centre of refraction
 10^6
 m
 1 1 1 1 integer8 8 8 465
OCCULTING_GPS_MANOEUVRE Occulting GPS manoeuvre flag

1 1 1 1 boolean 1 1 473
GPS_MANOEUVRE_TIME Time of the occulting GPS manoeuvre
 10^6
 s
 1 1 1 1 uinteger8 8 8 474
GPS_ECLIPTING Occulting GPS eclipsing

1 1 1 1 boolean 1 1 482
ECLIPSE_TIME Time of the eclipse
 10^6
 s
 1 1 1 1 uinteger8 8 8 483
GPS_NAV_HEALTH GPS navigation data health summary

1 1 1 1 boolean 1 1 491
GPS_SH GPS signal health information

1 1 1 1 enumerated 1 1 492
MEAN_AZIMUTH_INCOMING_RAY Mean azimuth of the incoming ray to GRAS
 10^3
 degree
 1 1 1 1 integer8 8 8 493
MEAN_AZIMUTH_OUTGOING_RAY Mean azimuth of the outgoing ray from GPS
 10^3
 degree
 1 1 1 1 integer8 8 8 501
RECEIVER_ANALOG_GAIN receiver channel analogue gain setting

1 1 1 1 enumerated 1 1 509
RECEIVER_DIGITAL_GAIN receiver channel digital gain setting

1 1 1 1 bitfield ( 6 ) 6 6 510
TEC_METHOD TEC determination method

1 1 1 1 enumerated 1 1 516
ERROR_COVARIANCE_ID Error covariance matrix reference identification

1 1 1 1 integer2 2 2 517
MAX_SLTH Maximum straight line tangent height
 10^6
 m
 1 1 1 1 integer8 8 8 519
MIN_SLTH Minimum straight line tangent height
 10^6
 m
 1 1 1 1 integer8 8 8 527
LAT_STRAIGHT_PATH_HIGH Latitude of the straight path at 80 km
 10^3
 degree
 1 1 1 1 integer4 4 4 535
LONG_STRAIGHT_PATH_HIGH Longitude of the straight path at 80 km
 10^3
 degree
 1 1 1 1 integer4 4 4 539
LAT_STRAIGHT_PATH_LOW Latitude of the straight path at lowest height
 10^3
 degree
 1 1 1 1 integer4 4 4 543
LONG_STRAIGHT_PATH_LOW Longitude of the straight path at lowest height
 10^3
 degree
 1 1 1 1 integer4 4 4 547
LAT_STRAIGHT_PATH_MID Latitude of the straight path at user definable impact parameter value
 10^3
 degree
 1 1 1 1 integer4 4 4 551
LONG_STRAIGHT_PATH_MID Longitude of the straight path at user definable impact parameter value
 10^3
 degree
 1 1 1 1 integer4 4 4 555
CYCLE_SLIP_LIMIT Lower height limit for cycle slip detection and correction
 10^6
 m
 1 1 1 1 integer8 8 8 559
CYCLE_SLIP_FLAG_CL_OCC Number of detected and corrected cycle slips in closed loop mode in occultation data

1 1 1 1 integer2 2 2 567
CYCLE_SLIP_FLAG_RS Number of detected and corrected cycle slips in raw sampling mode

1 1 1 1 integer2 2 2 569
CYCLE_SLIP_FLAG_CL_PIV Number of detected and corrected cycle slips in closed loop mode in pivot GPS data

1 1 1 1 integer2 2 2 571
WO_CHARACTERISATION Characterisation of the WO method

1 1 1 1 bitfield ( 4 ) 4 4 573
ATM_MULTIPATH Atmospheric mutltipath flag

1 1 1 1 bitfield ( 4 ) 4 4 577
WO_START Starting height of WO processing
 10^6
 m
 1 1 1 1 integer8 8 8 581
WO_END Ending height of WO processing
 10^6
 m
 1 1 1 1 integer8 8 8 589
WO_HEIGHT_STEP WO height step
 10^6
 m
 1 1 1 1 integer8 8 8 597
BP_PLANES Number of BP planes considered

1 1 1 1 integer2 2 2 605
BP_LOCATION Location of the BP plane
 10^6
 m
 1 1 1 1 integer8 8 8 607
DELTA_UTC_REF Time difference between UTC time and GSN reference time at the reference time of the first GO measurement sample
 10^9
 s
 1 1 1 1 integer8 8 8 615
NUMBER_OF_SAMPLES Number of observation samples, N

1 1 1 1 uinteger4 4 4 623
TIME_REF Reference time of the sample
 10^9
 s
 N 1 1 1 uinteger8 8 var 627
TIME_UTC UTC time of the sample
 10^9
 s
 N 1 1 1 uinteger8 8 var var
TIME_START_OCCULTATION Time from the beginning of the occultation
 10^9
 s
 N 1 1 1 integer8 8 var var
ENGINEERING_PARAMETER_1 Engineering parameter for in-flight monitoring of GRAS status
 10^9
N 1 1 1 integer8 8 var var
ENGINEERING_PARAMETER_2 Engineering parameter for in-flight monitoring of GRAS status
 10^9
N 1 1 1 integer8 8 var var
ENGINEERING_PARAMETER_3 Engineering parameter for in-flight monitoring of GRAS status
 10^9
N 1 1 1 integer8 8 var var
ENGINEERING_PARAMETER_4 Engineering parameter for in-flight monitoring of GRAS status
 10^9
N 1 1 1 integer8 8 var var
ENGINEERING_PARAMETER_5 Engineering parameter for in-flight monitoring of GRAS status
 10^9
N 1 1 1 integer8 8 var var
ENGINEERING_PARAMETER_6 Engineering parameter for in-flight monitoring of GRAS status
 10^9
N 1 1 1 integer8 8 var var
ENGINEERING_PARAMETER_7 Engineering parameter for in-flight monitoring of GRAS status
 10^9
N 1 1 1 integer8 8 var var
ENGINEERING_PARAMETER_8 Engineering parameter for in-flight monitoring of GRAS status
 10^9
N 1 1 1 integer8 8 var var
ENGINEERING_PARAMETER_9 Engineering parameter for in-flight monitoring of GRAS status
 10^9
N 1 1 1 integer8 8 var var
ENGINEERING_PARAMETER_10 Engineering parameter for in-flight monitoring of GRAS status
 10^9
N 1 1 1 integer8 8 var var
TRACKING_STATE Tracking state

N 1 1 1 bitfield ( 2 ) 2 var var
SLTH Straight line tangent height
 10^3
 m
 N 1 1 1 integer4 4 var var
LAT_RAY_TANGENT_L1 Latitude of the ray tangent point for L1
 10^3
 degree
 N 1 1 1 integer4 4 var var
LAT_RAY_TANGENT_L2 Latitude of the ray tangent point for L2
 10^3
 degree
 N 1 1 1 integer4 4 var var
LAT_RAY_TANGENT_LC Latitude of the ray tangent point for LC
 10^3
 degree
 N 1 1 1 integer4 4 var var
LONG_RAY_TANGENT_L1 Longitude of the ray tangent point for L1
 10^3
 degree
 N 1 1 1 integer4 4 var var
LONG_RAY_TANGENT_L2 Longitude of the ray tangent point for L2
 10^3
 degree
 N 1 1 1 integer4 4 var var
LONG_RAY_TANGENT_LC Longitude of the ray tangent point for LC
 10^3
 degree
 N 1 1 1 integer4 4 var var
OCCULTING_GPS_POSITION_X Occulting GPS position vector x
 10^6
 m
 N 1 1 1 integer8 8 var var
OCCULTING_GPS_POSITION_Y Occulting GPS position vector y
 10^6
 m
 N 1 1 1 integer8 8 var var
OCCULTING_GPS_POSITION_Z Occulting GPS position vector z
 10^6
 m
 N 1 1 1 integer8 8 var var
OCCULTING_GPS_VELOCITY_X Occulting GPS velocity vector x
 10^6
 m/s
 N 1 1 1 integer8 8 var var
OCCULTING_GPS_VELOCITY_Y Occulting GPS velocity vector y
 10^6
 m/s
 N 1 1 1 integer8 8 var var
OCCULTING_GPS_VELOCITY_Z Occulting GPS velocity vector z
 10^6
 m/s
 N 1 1 1 integer8 8 var var
METOP_POSITION_X Satellite position x vector
 10^6
 m
 N 1 1 1 integer8 8 var var
METOP_POSITION_Y Satellite position y vector
 10^6
 m
 N 1 1 1 integer8 8 var var
METOP_POSITION_Z Satellite position z vector
 10^6
 m
 N 1 1 1 integer8 8 var var
METOP_VELOCITY_X Satellite velocity x at epoch time
 10^6
 m/s
 N 1 1 1 integer8 8 var var
METOP_VELOCITY_Y Satellite velocity y at epoch time
 10^6
 m/s
 N 1 1 1 integer8 8 var var
METOP_VELOCITY_Z Satellite velocity z at epoch time
 10^6
 m/s
 N 1 1 1 integer8 8 var var
PIVOT_GPS_POSITION_X Pivot GPS position vector x
 10^6
 m
 N 1 1 1 integer8 8 var var
PIVOT_GPS_POSITION_Y Pivot GPS position vector y
 10^6
 m
 N 1 1 1 integer8 8 var var
PIVOT_GPS_POSITION_Z Pivot GPS position vector z
 10^6
 m
 N 1 1 1 integer8 8 var var
PIVOT_GPS_VELOCITY_X Pivot GPS velocity vector x
 10^6
 m/s
 N 1 1 1 integer8 8 var var
PIVOT_GPS_VELOCITY_Y Pivot GPS velocity vector y
 10^6
 m/s
 N 1 1 1 integer8 8 var var
PIVOT_GPS_VELOCITY_Z Pivot GPS velocity vector z
 10^6
 m/s
 N 1 1 1 integer8 8 var var
FIDUCIAL_STAT1_POSITION_X Fiducial station 1 position vector x
 10^6
 m
 N 1 1 1 integer8 8 var var
FIDUCIAL_STAT1_POSITION_Y Fiducial station 1 position vector y
 10^6
 m
 N 1 1 1 integer8 8 var var
FIDUCIAL_STAT1_POSITION_Z Fiducial station 1 position vector z
 10^6
 m
 N 1 1 1 integer8 8 var var
FIDUCIAL_STAT1_VELOCITY_X Fiducial station 1 velocity vector x
 10^6
 m
 N 1 1 1 integer8 8 var var
FIDUCIAL_STAT1_VELOCITY_Y Fiducial station 1 velocity vector y
 10^6
 m
 N 1 1 1 integer8 8 var var
FIDUCIAL_STAT1_VELOCITY_Z Fiducial station 1 velocity vector z
 10^6
 m
 N 1 1 1 integer8 8 var var
FIDUCIAL_STAT2_POSITION_X Fiducial station 2 position vector x
 10^6
 m
 N 1 1 1 integer8 8 var var
FIDUCIAL_STAT2_POSITION_Y Fiducial station 2 position vector y
 10^6
 m
 N 1 1 1 integer8 8 var var
FIDUCIAL_STAT2_POSITION_Z Fiducial station 2 position vector z
 10^6
 m
 N 1 1 1 integer8 8 var var
FIDUCIAL_STAT2_VELOCITY_X Fiducial station 2 velocity vector x
 10^6
 m
 N 1 1 1 integer8 8 var var
FIDUCIAL_STAT2_VELOCITY_Y Fiducial station 2 velocity vector y
 10^6
 m
 N 1 1 1 integer8 8 var var
FIDUCIAL_STAT2_VELOCITY_Z Fiducial station 2 velocity vector z
 10^6
 m
 N 1 1 1 integer8 8 var var
METOP_MISPOINTING_ROLL Mispointing angle Dh
 10^3
 deg
 N 1 1 1 integer8 8 var var
METOP_MISPOINTING_PITCH Mispointing angles Dx
 10^3
 deg
 N 1 1 1 integer8 8 var var
METOP_MISPOINTING_YAW Mispointing angles Dz
 10^3
 deg
 N 1 1 1 integer8 8 var var
METOP_TRUE_LATITUDE Metop true latitude angle
 10^3
 deg
 N 1 1 1 integer8 8 var var
USO_FREQUENCY_CORRECTION USO frequency correction
 10^9
 Hz
 N 1 1 1 integer8 8 var var
USO_FREQUENCY_COMP USO frequency after the correction
 10^9
 Hz
 N 1 1 1 uinteger8 8 var var
L1_CA_PHASE L1-C/A carrier phase after instrument correction
 10^6
 m
 N 1 1 1 integer8 8 var var
L1_P1_PHASE L1-P1 carrier phase after instrument correction
 10^6
 m
 N 1 1 1 integer8 8 var var
L2_P2_PHASE L2-P2 carrier phase after instrument correction
 10^6
 m
 N 1 1 1 integer8 8 var var
L1_CA_AMPLITUDE L1-C/A amplitude after instrument correction
 10^9
 dBV
 N 1 1 1 integer8 8 var var
L1_P1_AMPLITUDE L1-P1 amplitude after instrument correction
 10^9
 dBV
 N 1 1 1 integer8 8 var var
L2_P2_AMPLITUDE L2-P2 amplitude after instrument correction
 10^9
 dBV
 N 1 1 1 integer8 8 var var
L1_NOISE L1 noise estimate
 10^9
 dB
 N 1 1 1 integer8 8 var var
L2_NOISE L2 noise estimate
 10^9
 dB
 N 1 1 1 integer8 8 var var
RESIDUAL_PHASE_DELAY_L1 Residual phase delay L1
 10^9
 m
 N 1 1 1 integer8 8 var var
RESIDUAL_PHASE_DELAY_L2 Residual phase delay L2
 10^9
 m
 N 1 1 1 integer8 8 var var
RESIDUAL_DOPPLER_SHIFT_L1 Residual Doppler shift L1
 10^9
 m/s
 N 1 1 1 integer8 8 var var
RESIDUAL_DOPPLER_SHIFT_L2 Residual Doppler shift L2
 10^9
 m/s
 N 1 1 1 integer8 8 var var
GO_BENDING_ANGLE_L1 GO Bending angle L1
 10^9
 rad
 N 1 1 1 integer8 8 var var
GO_BENDING_ANGLE_L2 GO Bending angle L2
 10^9
 rad
 N 1 1 1 integer8 8 var var
GO_IMPACT_PARAMETE_L1 GO Impact parameter L1
 10^9
 m
 N 1 1 1 integer8 8 var var
GO_IMPACT_PARAMETE_L2 GO Impact parameter L2
 10^9
 m
 N 1 1 1 integer8 8 var var
IONOSPHERIC_CORRECTED_GO_BENDING GO Ionospheric corrected bending angle
 10^9
 rad
 N 1 1 1 integer8 8 var var
TEC Total electron content along the ray path
 10^9
 TECU
 N 1 1 1 integer8 8 var var
GO_APPROXIMATE_L1_RAY_HEIGHT GO Impact parameter L1 - local radius of the curvature
 10^9
 m
 N 1 1 1 integer8 8 var var
NUMBER_OF_SAMPLES_CP Number of code phase measurement samples, M

1 1 1 1 uinteger4 4 4 var
TIME_REF_CP Reference time of the sample
 10^9
 s
 M 1 1 1 uinteger8 8 var var
TIME_UTC_CP UTC time of the sample
 10^9
 s
 M 1 1 1 uinteger8 8 var var
TIME_START_OCCULTATION_CP Time from the beginning of the occultation
 10^9
 s
 M 1 1 1 integer8 8 var var
L1_CA_CODE_PHASE L1-C/A code phase after instrument correction
 10^9
 chips
 M 1 1 1 uinteger8 8 var var
L1_P1_CODE_PHASE L1-P1 code phase after instrument correction
 10^9
 chips
 M 1 1 1 uinteger8 8 var var
L2_P2_CODE_PHASE L2-P2 code phase after instrument correction
 10^9
 chips
 M 1 1 1 uinteger8 8 var var
L1_CA_PSEUDORANGE L1-C/A pseudorange after instrument correction
 10^9
 m
 M 1 1 1 uinteger8 8 var var
L1_P1_PSEUDORANGE L1-P1 pseudorange after instrument correction
 10^9
 m
 M 1 1 1 uinteger8 8 var var
L2_P2_PSEUDORANGE L2-P2 pseudorange after instrument correction
 10^9
 m
 M 1 1 1 uinteger8 8 var var
NUMBER_OF_SAMPLES_WO Number of samples in the Wave Optics processing, W

1 1 1 1 uinteger4 4 4 var
TIME_REF_WO Reference time of the WO sample
 10^9
 s
 W 1 1 1 uinteger8 8 var var
TIME_UTC_WO UTC time of the WO sample
 10^9
 s
 W 1 1 1 uinteger8 8 var var
BP_HEIGHT Height in BP plane
 10^6
 m
 W 1 1 1 integer8 8 var var
WO_L1_CA_AMPLITUDE L1 C/A amplitude in BP plane
 10^9
 dBV
 W 1 1 1 integer8 8 var var
WO_L1_P_AMPLITUDE L1 P amplitude in BP plane
 10^9
 dBV
 W 1 1 1 integer8 8 var var
WO_L2_P_AMPLITUDE L2 P amplitude in BP plane
 10^9
 dBV
 W 1 1 1 integer8 8 var var
WO_RESIDUAL_PHASE_DELAY_L1 Residual phase delay L1 in BP plane
 10^9
 m
 W 1 1 1 integer8 8 var var
WO_RESIDUAL_PHASE_DELAY_L2 Residual phase delay L2 in BP plane
 10^9
 m
 W 1 1 1 integer8 8 var var
WO_RESIDUAL_DOPPLER_SHIFT_L1 Residual Doppler shift L1 in BP plane
 10^9
 m/s
 W 1 1 1 integer8 8 var var
WO_RESIDUAL_DOPPLER_SHIFT_L2 Residual Doppler shift L2 in BP plane
 10^9
 m/s
 W 1 1 1 integer8 8 var var
WO_BENDING_ANGLE_L1 WO Bending angle L1
 10^9
 rad
 W 1 1 1 integer8 8 var var
WO_BENDING_ANGLE_L2 WO Bending angle L2
 10^9
 rad
 W 1 1 1 integer8 8 var var
WO_IMPACT_PARAMETE_L1 WO Impact parameter L1
 10^9
 m
 W 1 1 1 integer8 8 var var
WO_IMPACT_PARAMETE_L2 WO Impact parameter L2
 10^9
 m
 W 1 1 1 integer8 8 var var
IONOSPHERIC_CORRECTED_WO_BENDING WO Ionosphere corrected bending angle
 10^9
 rad
 W 1 1 1 integer8 8 var var
WO_APPROXIMATE_L1_RAY_HEIGHT WO Impact parameter L1 - local radius of the curvature
 10^9
 m
 W 1 1 1 integer8 8 var var
NUMBER_OF_SAMPLES_RS Number of samples in a raw sampling mode, K

1 1 1 1 uinteger4 4 4 var
TIME_IMT_RS IMT time stamp of the sample
 10^9
 s
 K 1 1 1 uinteger8 8 var var
TIME_UTC_GRAS_RS UTC_GRAS time stamp of the sample
 10^9
 s
 K 1 1 1 uinteger8 8 var var
TIME_OBT_RS OBT time stamp of the sample
s
 K 1 1 1 longtime 8 var var
TIME_REF_RS Reference time of the sample
 10^9
 s
 K 1 1 1 integer8 8 var var
P_1_RS L1 NCO phase of first sample

K 1 1 1 integer8 8 var var
F1_1_RS L1 NCO frequency setting for L1 carrier during sequence 1 in this packet

K 1 1 1 integer4 4 var var
TINT1_RS Total integration time from IMT when F1_1 is valid until F2_1 is set

K 1 1 1 uinteger4 4 var var
F2_1_RS L1 NCO frequency setting for L1 carrier during sequence 2 in this packet

K 1 1 1 integer4 4 var var
TINT2_RS Total integration time from IMT+TINT1 when F2_1 is valid until the last measurement of the packet

K 1 1 1 uinteger4 4 var var
IQ_CA_EXP_RS Exponent of I/Q samples

K 1 1 1 uinteger2 2 var var
I_CA_RS I sample of L1 carrier amplitude in terms of normalised counts of the C/A punctual correlation value

K 1 1 1 integer2 2 var var
Q_CA_RS Q sample of L1 carrier amplitude in terms of normalised counts of the C/A punctual correlation value

K 1 1 1 integer2 2 var var
L1_PHASE_RS L1 carrier phase after instrument correction
 10^9
 deg
 K 1 1 1 integer8 8 var var
L1_AMPLITUDE_RS L1 amplitude after instrument correction
 10^9
 dBV
 K 1 1 1 integer8 8 var var
L1_NOISE_RS L1 noise estimate
 10^9
 dB
 K 1 1 1 integer8 8 var var
Total: var

Enumeration BE_MODEL

Value Name Description
0 MSISE90 Baseline
1 NRLMSISE00 Updated model from MSISE90
2 Spare  

Enumeration DISPOSITION_MODE

Value Name Description
T Testing  
O Operational  
C Commissioning  

Enumeration EARTH_MODEL_ID

Value Name Description
0 Not used  
1 WGS84 ellipsoid model  

Enumeration GPS_SH

Value Name Description
0 All signals OK  
1 All signals weak  
2 All signals dead  
3 All signals have no data modulation  
4 L1P signal weak  
5 L1P signal dead  
6 L1P signal has no data modulation  
7 L2P signal weak  
8 L2P signal dead  
9 L2P signal has no data modulation  
10 L1C signal weak  
11 L1C signal dead  
12 L1C signal has no data modulation  
13 L2C signal weak  
14 L2C signal dead  
15 L2C signal has no data modulation  
16 L1 and L2P signal weak  
17 L1 and L2P signal dead  
18 L1 and L2P signal has no data modulation  
19 L1 and L2C signal weak  
20 L1 and L2C signal dead  
21 L1 and L2C signal has no data modulation  
22 L1 signal weak  
23 L1 signal dead  
24 L1 signal has no data modulation  
25 L2 signal weak  
26 L2 signal dead  
27 L2 signal has no data modulation  
28 SV is temporarily out Do not use this SV during current pass
29 SV will be temporarily out Use with caution
30 Spare  
31 More than one combination would be required to describe anomalies  

Enumeration GRAS_CHANNEL_ID

Value Name Description
0 Zenith chain 0  
1 Zenith chain 1  
2 Zenith chain 2  
3 Zenith chain 3  
4 Zenith chain 4  
5 Zenith chain 5  
6 Zenith chain 6  
7 Zenith chain 7  
8 Velocity chain 8  
9 Velocity chain 9  
10 Anti-velocity chain 10  
11 Anti-velocity chain 11  

Enumeration GRAS_ID

Value Name Description
0 Not used  
1 GRAS 1  
2 GRAS 2  
3 GRAS 3  

Enumeration INSTRUMENT_ID

Value Name Description
AMSA AMSU-A  
ASCA ASCAT  
ATOV ATOVS instruments: AVHRR/3, HIRS/4, AMSU-A, MHS
AVHR AVHRR/3  
GOME GOME  
GRAS GRAS  
HIRS HIRS/4  
IASI IASI  
MHSx MHS  
NOAA All NOAA instruments specific to Level 0 NOAA product
SEMx SEM  
ADCS ADCS  
SBUV SBUV  
xxxx No specific instrument  
HKTM VCDU34 data specific to Level 0

Enumeration INSTRUMENT_MODEL

Value Name Description
0 Reserved  
1 Flight Model 1  
2 Flight Model 2  
3 Engineering Model  
4 Protoflight Model  

Enumeration MEASUREMENT_TYPE

Value Name Description
0 Rising Rising occultation
1 Setting Setting occultation
2 Navigation Navigation measurement
3 Spare  

Enumeration METOP_STEERING_MODE

Value Name Description
0 Rate Reduction Mode  
1 Coarse Acquisition Mode  
2 Fine Acquisition Mode 1  
3 Fine Acquisition Mode 2  
4 Fine Acquisition Mode 3  
5 Operational Mode  
6 Fine Pointing Mode  
7 Yaw Steering Mode  
8 Orbit Control Mode  
9 Fine Control Mode  
10 Safe Mode  

Enumeration ONBOARD_NAV_SOLUTION

Value Name Description
0 Not navigation solution  
1 Propagated initial settings  
2 First-fix  
4 Calculated with least square  
5 Calculated with Kalman filter  
7 Invalid navigation solution An invalid navigation solution will be indicated if least square is used and less than 4 satellites are in the field-of-view of the zenith antenna. The reported navigation solution will be the propagated one.

Enumeration PROCESSING_CENTRE

Value Name Description
CGS1   First EUMETSAT EPS Core Ground Segment
CGS2   Second EUMETSAT EPS Core Ground Segment
CGS3   Third EUMETSAT EPS Core Ground Segment
NSSx   NOAA/NESDIS
RUSx   Reference User Station
DMIx   DMI, Copenhagen (GRAS SAF)
DWDx   DWD, Offenbach (Climate SAF)
FMIx   FMI , Helsinki (Ozone SAF)
IMPx   IMP, Lisbon (Land SAF)
INMx   INM, Madrid (NCW SAF)
MFxx   MF, Lannion (OSI SAF)
UKMO   UKMO, Bracknell (NWP SAF)

Enumeration PROCESSING_LEVEL

Value Name Description
00 Level 0  
01 Level 1  
1A Level 1a  
1B Level 1b  
1C Level 1c  
02 Level 2  
03 Level 3  
xx No Specific Level  

Enumeration PROCESSING_MODE

Value Name Description
N Nominal NRT processing
B Backlog Processing  
R Reprocessing  
V Validation  

Enumeration PRODUCT_TYPE

Value Name Description
ENG   IASI engineering data
GAC   NOAC Global Area Coverage AVHRR data
SND   Sounding Data
SZF   ASCAT calibrated s0 data at full resolution
SZO   ASCAT calibrated s0 data at operational resolution (50 km)
SZR   ASCAT calibrated s0 data at research resolution (25 km)
VER   IASI verification data
xxx   No specific product type specified
AIP   NOAA AIP/SAIP data
TIP   NOAA TIP/STIP data
HRP   HRPT data
LRP   LRPT data

Enumeration RECEIVER_ANALOG_GAIN

Value Name Description
5 0 Analogue Gain Setting values obtained from the AGGA
9 -5  
6 -10  
10 -15  

Enumeration RECEIVING_GROUND_STATION

Value Name Description
SVL   Svalbard
WAL   Wallops Island, Virginia
FBK   Fairbanks, Alaska
SOC   SOCC (NESDIS Satellite Operations Control Centre), Suitland, Maryland
RUS   Reference User Station

Enumeration SELECTED_CLOCK_CORRECTION_METHOD

Value Name Description
0 ND No differencing
1 SD1 Single differencing 1
2 SD2 Single differencing 2
3 DD1 Double differencing 1
4 DD2 Double differencing 2

Enumeration SPACECRAFT_ID

Value Name Description
xxx   No specific spacecraft
M01   METOP 01
M02   METOP 02
M02   METOP 03
N15   NOAA-K
N16   NOAA-L
N17   NOAA-M
N18   NOAA-N
N19   NOAA-N'

Enumeration TEC_METHOD

Value Name Description
0 TEC at level 1a  
1 TEC at level 1b  
2 Spare  

Bitfield ATM_MULTIPATH

Length 4 bytes

Name Description Length
unused   30
Atmospheric_multipath_in_troposphere 0 = Atmospheric multipath has not been detected
1 = Atmospheric multipath detected		 1
Atmospheric_multipath_in_stratosphere 0 = Atmospheric multipath has not been detected
1 = Atmospheric multipath detected		 1
Total   32

Bitfield CLOCK_CORRECTION_FALLBACK_MODE

Length 1 bytes

Name Description Length
Spare   2
ND_failed No clock correction 1
SD1__ND 0=no, 1=mode change performed 1
SD2__SD1 0=no, 1=mode change performed 1
DD1__SD2 0=no, 1=mode change performed 1
DD2__DD1 0=no, 1=mode change performed 1
Fallback_mode 0=not activated, 1=activated 1
Total   8

Bitfield LOCAL_MULTIPATH_SOURCE

Length 2 bytes

Name Description Length
Spare   13
ASCAT_ANT_RF_in_the_FOV 0=outside FOV, 1=inside FOV 1
ASCAT_ANT_RA_in_the_FOV 0=outside FOV, 1=inside FOV 1
Metop_solar_panel_in_the_FOV 0=outside FOV, 1=inside FOV 1
Total   16

Bitfield RECEIVER_DIGITAL_GAIN

Length 6 bytes

Name Description Length
CCT_5   8
CCT_4   8
CCT_3   8
CCT_2   8
CCT_1   8
CCT_0   8
Total   48

Bitfield SSD_AVAILABILITY

Length 2 bytes

Name Description Length
Spare   10
Station 2 TZD estimate 0 = available, 1 = not available or error too large 1
Station 1 TZD estimate 0 = available, 1 = not available or error too large 1
Station_characterisation_data_for_station_2 0 = available, 1 = not available 1
Station_characterisation_data_for_station_1 0 = available, 1 = not available 1
SSD_fiducial_station_2 0 = available, 1 = not available 1
SSD_fiducial_station_1 0 = available, 1 = not available 1
Total   16

Bitfield TELEMETRY_IN_RANGE

Length 3 bytes

Name Description Length
Spare   3
Digital_5_V 0 - Within range 1 - Outside range 1
USO_ground 0 - Within range 1 - Outside range 1
FG_thermistor 0 - Within range 1 - Outside range 1
Thermistor_supply_voltage 0 - Within range 1 - Outside range 1
DBU_power_voltage 0 - Within range 1 - Outside range 1
USO_external_thermistor 0 - Within range 1 - Outside range 1
USO_internal_thermistor 0 - Within range 1 - Outside range 1
ISAC_thermistor 0 - Within range 1 - Outside range 1
GEU_thermistor 0 - Within range 1 - Outside range 1
Anti_velocity_RFCU_thermistor 0 - Within range 1 - Outside range 1
Velocity_RFCU_thermistor 0 - Within range 1 - Outside range 1
Zenith_RFCU_thermistor 0 - Within range 1 - Outside range 1
Anti_velocity_antenna_thermistor 0 - Within range 1 - Outside range 1
Velocity_antenna_thermistor 0 - Within range 1 - Outside range 1
Zenith_antenna_thermistor 0 - Within range 1 - Outside range 1
ENDP_Velocity_Z 0 - Within range 1 - Outside range 1
ENDP_Velocity_Y 0 - Within range 1 - Outside range 1
ENDP_Velocity_X 0 - Within range 1 - Outside range 1
ENDP_Position_Z 0 - Within range 1 - Outside range 1
ENDP_Position_Y 0 - Within range 1 - Outside range 1
ENDP_Position_X 0 - Within range 1 - Outside range 1
Total   24

Bitfield WO_CHARACTERISATION

Length 4 bytes

Name Description Length
Spare   27
Phase_Matching 0=GOPM method has not been applied, 1=GOPM method has been applied 1
Full_Spectrum_Inversion 0=FSI method has not been applied, 1=FSI method has been applied 1
Canonical_Transform_2 0 =CT2 method has not been applied, 1=CT2 method has been applied 1
Canonical_Transform 0=CT method has not been applied, 1=CT method has been applied 1
Back_Propagation 0=BP method has not been applied, 1=BP method has been applied 1
Total   32

Bitfield TRACKING_STATE

Length 2 bytes

Name Description Length
P_code_and_L2_carrier_tracking,_highest_tracking_state   1
P_code_tracking   1
P_code_acquisition   1
undefined   1
undefined   1
undefined   1
Single_carrier_frequency_tracking_at_10_ms   1
Single_carrier_frequency_tracking_at_1_ms   1
undefined   1
undefined   1
undefined   1
undefined   1
L1_carrier_lock_check   1
C/A_code_lock_check   1
C/A_code_acquisition   1
Acquisition_and_tracking_ended   1
Total   16