3.
GOME-2 Products Configuration History
|
|
|
3.
GOME-2 Products Configuration History |
In the following tables the current versions on the operational Ground Segment are shown on a white background.
Date introduced |
Product format version |
PFS version [RD8]
|
PGS version |
Comments |
|
Major number |
Minor number |
||||
| 30/09/2007 |
10 |
0 |
7.2 |
6.1 |
|
| 10/03/2008 |
11 |
0 |
7.3 |
6.1 |
|
| 01/04/2008 |
11 |
0 |
7.4 |
6.1 |
Corrected table PCD_BASIC: F_OLD_CAL_DATA |
05/01/2011 |
12 |
0 |
9 |
7 |
New product format to include additional PMD related data and improved PCD table (see PFS) |
Table 3.1: GOME-2 Level 1 document versions
GOME-2 L1 PPF software version
|
Date introduced on GS1 |
Comments |
| 3.4.0 |
01/09/2007 |
|
| 3.9.1 |
10/03/2008 Orbit 7214 11:35 UTC |
New key-data for angular dependence of polarisation
sensitivity |
4.0.0 |
26/06/2008 Orbit 8748 11:02 UTC |
Revised calculation of single-scattering u-Stokes fractions |
4.1.3 |
07/01/2009
Orbit 11520 13:50 UTC |
Introduction of new method for calculating u-Stokes
fraction for special geometry situations |
4.2.1 |
07/04/2009 Orbit 12795 09:30 UTC |
PPF 4.2.1 introduces revised dark signal correction for channel 1 in SAA
by introduction of additional threshold derived from extreme UV pixel readout
signals. Change flagging of MDR degraded instrument flags for saturation events by setting the flag only if all valid readouts in one scan/mdr (32 minus number of gaps/invalid) are flagged. PPF 4,2,1 solves an anomaly detected in processing after on-board co-adding in channel 3 (saturation patch) has been turned on (starting 4 March 2009). In the transition to and from detector pixel co-adding, the readout normalisation has been turned on and off at a scan-to-scan level. As a result individual readouts within one scan (MDR) and for channel 3 only are normalised incorrectly, resulting, under rare circumstances, in an error of factor 2 in radiance levels. |
4.2.2 |
09/06/2009 Orbit 13694 15:45 UTC |
Dark measurement reported signal errors within parts of the SAA appeared to be wrong inside the SAA flagged region and outside the new correction scheme affected region introduced with PPF version 4.2.1 (see before). As a consequence also the reported errors on the earthshine radiances in the level 1b product and for band 1a only(!) within the SAA box (outside the detected SAA) are wrong. Fixed with 4.2.2. |
4.3.0 |
18/08/2009 Orbit 14687 13:30 UTC |
New Stokes fraction correction scheme introduced. This results in a regular
online update and correction of the Stokes fraction offsets by the PPF.
The occurrence rate of the latter is about 1 to 5 times per month depending
on the number of acquired correction measurements. New interpolation of single-scattering values on PMD read-out (angle) grid. For this all single-scattering values of uss, qss, cos(2χ), and sin(2χ) and Pss are separately calculated and prepared on the scanner angle grid. Following this the interpolation scheme, as defined for the scanner angle, to PMD grid (Eq. 225 to 227; PGS6.1) is applied to all the single scattering parameters used in the determination of Stokes fractions. This is essential for an improved accuracy of processing the “C-shape” area and for the newly introduced online correction of Stokes fraction offsets. |
4.4.0 |
21/01/2010 Orbit 16904 14:30 UTC |
Key-data has been updated which has not been corrected for stray light
in the original derivation from raw calibration measurements The following
key-data files are affected and have been updated: POL_ALPHA.203 POL_BETA.203 POL_GAMMA.203 POL_ETA.203 POL_ZETA.203 The scan angle dependence of polarisation sensitivity (-45/45) PMD should be characterised by specific new key-data: POL_CHI_ZETA_PMD_P.203 POL_CHI_ZETA_PMD_S.203. The original key-data for GOME-2 FM3 (Metop-A) is available on the GOME-2 CalVal Extranet pages under “Calibration Data Set”. Access to the Extranet is available via the link specified in Section 1.2. |
4.5.0 |
09/09/2010 Orbit 20185 13:20 UTC |
All latitude/longitude geolocation parameters are shifted by 1 to 2 km along the orbit, i.e. by 2.5 to 5% of the along-track pixel size at nadir position. The across-track values are not affected! This fixes an issue with an incorrect scanner position read-out time offset in the processor settings. |
5.0.0 |
05/01/2011 Orbit 21862 15:15 UTC |
The product format has been updated to version 12.0 (PFS 9). One main aspect of the changes are the provision of polarisation uncorrected PMD read-outs and geolocation information for PMD readouts. FRESCO has been updated to FRESCO+. For a detailed description of the changes we refer to the new PGS 7 and to the FRESCO project report. |
5.1.0 |
02/03/2011 Orbit 22657 11:40 UTC |
If no geolocation can be computed for a 6-seconds integration time (e.g. for the 1st scan of the orbit in band 1a) a single “undefined” record is saved (in 5.0.0 no record is saved). |
Table 3.2: GOME-2 Level 1 PPF software versions
GOME-2 L1 auxiliary files set version |
GOME-2 L1 auxiliary files |
Date introduced on GS1 |
Comments |
| v1.01 v1.00 v1.15 v1.03 |
GOME_CAL_xx_M02_20070309000000Z_xxxxxxxxxxxxxxZ_20070323000101Z_xxxx_FM3x330xxx GOME_COR_xx_M02_20000101000000Z_xxxxxxxxxxxxxxZ_20060717010100Z_xxxx_FM3x327xxx GOME_INS_xx_M02_20070814000000Z_20111231235959Z_20070814000115Z_xxxx_FM3x340xxx GOME_STA_xx_xxx_20070504000000Z_xxxxxxxxxxxxxxZ_20070503000103Z_xxxx_xxxxxxxxxx |
03/04/2007 01/03/2007 01/09/2007 04/05/2007 |
|
| v1.03 v1.19 |
GOME_CAL_xx_M02_20080225000000Z_xxxxxxxxxxxxxxZ_20080225000103Z_xxxx_FM3x391xxx GOME_INS_xx_M02_20080121000000Z_20111231235959Z_20080121000119Z_xxxx_FM3x385xxx |
10/03/2008 31/01/2008 Orbit 7214 11:35 UTC |
New key-data (CAL) for angular dependence of polarisation sensitivity for both PMD and FPA |
v1.04 v1.20 |
GOME_CAL_xx_M02_20080605000000Z_xxxxxxxxxxxxxxZ_20080605000104Z_xxxx_FM3x400xxx GOME_INS_xx_M02_20080605000000Z_20111231235959Z_20080605000120Z_xxxx_FM3x400xxx |
26/06/2008 26/06/2008 Orbit 8748 11:02 UTC |
PMD acceptance levels lowered from 50 to 35 BU (INS). New key-data (CAL) for angular dependence of polarisation sensitivity now applied to PMD only. |
v1.06 v1.21 |
GOME_CAL_xx_M02_20081210000000Z_xxxxxxxxxxxxxxZ_20081210000106Z_xxxx_FM3x413xxx GOME_INS_xx_M02_20081103000000Z_20111231235959Z_20081103000121Z_xxxx_FM3x413xxx |
07/01/2009 Orbit 11520 13:50 UTC |
PMD acceptance levels lowered from 35 to 5 BU (INS). Revised key-data (CAL) for angular dependence of polarisation sensitivity applied to PMD only. |
v1.22 |
GOME_INS_xx_M02_20090309000000Z_20111231235959Z_20090309000122Z_xxxx_FM3x421xxx | 07/04/2009 Orbit 12795 09:30 UTC |
Additional dark-signal correction in SAA has been turned on. |
v1.07 v1.01 v1.23 |
GOME_CAL_xx_M02_20090618000000Z_xxxxxxxxxxxxxxZ_20090618000107Z_xxxx_FM3x430xxx
GOME_COR_xx_M02_20090728000000Z_xxxxxxxxxxxxxxZ_20090728000101Z_CGSx_FM3x430xxx GOME_INS_xx_M02_20090618000000Z_20111231235959Z_20090618000123Z_xxxx_FM3x430xxx |
18/08/2009 Orbit 14687 13:30 UTC |
New Stokes fraction correction scheme introduced (see ECP 426 and documentation therein). This results in a regular online update of the COR auxiliary file by the PPF. The occurrence rate of the latter is about 1 to 5 files per month. |
v1.08 |
GOME_CAL_xx_M02_20091105000000Z_xxxxxxxxxxxxxxZ_20091105000108Z_xxxx_FM3x440xxx | 21/01/2010 Orbit 16904 14:30 UTC |
Key-data has been updated which has not been corrected for stray-light
in the original derivation from raw calibration measurements (see MOM from
calibration expert meeting at TNO September 2009 and presentation from TNO
at in-flight review meeting at Galileo 1st October 2009). The following
files are affected and have been updated in version 1.08 of the GOME CAL
auxiliary file: POL_ALPHA.203 POL_BETA.203 POL_GAMMA.203 POL_ETA.203 POL_ZETA.203 The scan angle dependence of polarisation sensitivity (-45/45) PMD should be characterised by specific key-data as delivered by TNO/Selex Galileo in a preliminary delivery (9th of April 2009) of FM3 key-data files (for all details see RD4): POL_CHI_ZETA_PMD_P.203 POL_CHI_ZETA_PMD_S.203. |
v1.24 |
GOME_INS_xx_M02_20100806000000Z_20251231235959Z_20100806000124Z_xxxx_FM3x440xxx | 09/09/2010 Orbit 20185 13:20 UTC |
All latitude/longitude geolocation parameters are shifted by 1 to 2 km along the orbit, i.e. by 2.5 to 5% of the along-track pixel size at nadir position. The across-track values are not affected! This fixes an issue with an incorrect scanner position read-out time offset in the processor settings. |
v1.25 v1.04 |
GOME_INS_xx_M02_20100806000000Z_20251231235959Z_20100806000125Z_xxxx_FM3x500xxx
GOME_STA_xx_xxx_20100601000000Z_xxxxxxxxxxxxxxZ_20100601000104Z_xxxx_FM3x500xxx |
05/01/2011 Orbit 21862 15:15 UTC |
FRESCO has been updated to FRESCO+. For a detailed description of the changes we refer to the new PGS 7 and to the FRESCO project report. |
v1.26 |
GOME_INS_xx_M02_20110210000000Z_20251231235959Z_20110210000126Z_xxxx_FM3x510xxx | 02/03/2011 Orbit 22657 11:40 UTC |
Pure house-keeping updates |
Table 3.3: GOME-2 Level 1 PPF auxiliary parameter file versions