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GOMOS Daily Report 03-APR-2007

GOMOS Daily Report 03-APR-2007


Level 0 and Level 1 products

SUMMARY

1. General Info

 
2. Summary of products arrived in PCF (Product Control Facility)
2.1 Level 0: products arrived in PCF during current month (see template here)
2.2 Level 0: plot of mission plan versus production during reporting period
2.3 Level 0: summary of missing occultations with respect to the plan
2.4 Level 1: products arrived in PCF during reporting period

 
3. Plot of Spectrometers and Photometers temperatures

 
4. Dark Charge monitoring
4.1 Products that did not use the Dark Sky Area observation for DC computation
4.2 Plot of Dark Charge

 
5. Demodulation correction and quality product information monitoring
5.1 Percentage of products with some flags set
5.2 Plot of quality information per product (time dependant)
5.3 Plot of quality information per product (world map)

 
6. Star tangent altitude lost
6.1 Statistics on star tangent altitude lost
6.2 Plot of star tangent altitude lost: DARK products
6.3 Plot of star tangent altitude lost: BRIGHT products
6.3 Plot of star tangent altitude lost: TWILIGHT products

 
7. Star Acquisition and Tracking Unit (SATU)
7.1 SATU plots (dark limb): 'X' and 'Y' axis
7.2 SATU Noise Equivalent Angle statistics
7.2.1 SATU NEA Statistics (table)
7.2.2 Daily SATU NEA STD (dark limb) - trend since 1st April 2006

 
8.Auxiliary Data Files used for the production reported in section 2.4

 


Level 2 products



 

1. General Info

This report presents the daily analysis on parameters extracted from GOMOS level 1b data (GOM_TRA_1P).
It is intended to monitor some important parameters that will impact the quality of the level 2 products
as the Spectrometers and Photometers CCD Temperatures and Dark Charge, SATU noise equivalent angle...
A list of level 0 products (and content) that have arrived during the actual month to the PCF is also given.
 
Item Value
Time of report generation
 05APR2007 05:32:45
Data source version
 GOMOS/5.00
Start time of products
 QDS_YESTERDAY(/START)-1D (03APR2007 00:00:00)
Stop time of products
 QDS_YESTERDAY(/STOP)-1D (04APR2007 00:00:00)
Store outputs in DB
 Yes
Nb of level 1b prods
 49
Nb of prods with errors
 1

2. Summary of products arrived in PCF (Product Control Facility)

2.1 Level 0 products arrived in PCF (see template here)

2.2 Plot of mission plan versus Level 0 production arrived in PCF during reporting period

Red segments are missing products.
Blue segments are available products.
Green segments are calibration measurements (not available products to users).

qds_image

2.3 Summary of missing occultations (red segments in previous plot)

UTC start time Star name Star ID Orbit
03-APR-2007 00:04:29
 9BetCrv
106
 26609
03-APR-2007 00:06:25
 4GamCrv
100
 26609
03-APR-2007 00:16:03
 94BetLeo
62
 26609
03-APR-2007 00:17:41
 68DelLeo
96
 26609
03-APR-2007 00:24:29
 52PsiUMa
174
 26609
03-APR-2007 00:27:27
 64GamUMa
87
 26609
03-APR-2007 00:29:21
 50AlpUMa
36
 26609
03-APR-2007 00:35:35
 7BetUMi
60
 26609
03-APR-2007 00:37:24
 1AlpUMi
49
 26609
03-APR-2007 00:45:05
 5AlpCep
89
 26609
03-APR-2007 01:00:38
 8EpsPeg
61
 26609
03-APR-2007 01:03:07
 34AlpAqr
162
 26609
03-APR-2007 01:05:15
 22BetAqr
154
 26609
03-APR-2007 01:07:48
 49DelCap
142
 26609
03-APR-2007 01:17:58
 DSA1022
0
 26609
03-APR-2007 01:20:04
 AlpPav
45
 26609
03-APR-2007 01:27:36
 AlpTrA
43
 26610
03-APR-2007 01:29:28
 BetTrA
134
 26610
03-APR-2007 01:32:06
 Alp1Cen
4
 26610
03-APR-2007 01:34:50
 BetCru
20
 26610
03-APR-2007 01:37:42
 GamCen
64
 26610
03-APR-2007 01:40:18
 IotCen
123
 26610
03-APR-2007 01:45:05
 9BetCrv
106
 26610
03-APR-2007 01:47:01
 4GamCrv
100
 26610
03-APR-2007 01:56:38
 94BetLeo
62
 26610
03-APR-2007 01:58:17
 68DelLeo
96
 26610
03-APR-2007 02:05:05
 52PsiUMa
174
 26610
03-APR-2007 02:08:03
 64GamUMa
87
 26610
03-APR-2007 02:09:57
 50AlpUMa
36
 26610
03-APR-2007 02:16:10
 7BetUMi
60
 26610
03-APR-2007 02:18:00
 1AlpUMi
49
 26610
03-APR-2007 02:25:41
 5AlpCep
89
 26610
03-APR-2007 02:41:14
 8EpsPeg
61
 26610
03-APR-2007 02:43:44
 34AlpAqr
162
 26610
03-APR-2007 02:45:51
 22BetAqr
154
 26610
03-APR-2007 02:48:25
 49DelCap
142
 26610
03-APR-2007 02:58:35
 DSA1022
0
 26610
03-APR-2007 03:00:40
 AlpPav
45
 26610
03-APR-2007 03:08:12
 AlpTrA
43
 26611
03-APR-2007 03:10:05
 BetTrA
134
 26611
03-APR-2007 03:12:42
 Alp1Cen
4
 26611
03-APR-2007 03:15:26
 BetCru
20
 26611
03-APR-2007 03:18:18
 GamCen
64
 26611
03-APR-2007 03:20:54
 IotCen
123
 26611
03-APR-2007 03:25:41
 9BetCrv
106
 26611
03-APR-2007 03:27:37
 4GamCrv
100
 26611
03-APR-2007 03:37:14
 94BetLeo
62
 26611
03-APR-2007 03:38:53
 68DelLeo
96
 26611
03-APR-2007 03:45:41
 52PsiUMa
174
 26611
03-APR-2007 03:48:39
 64GamUMa
87
 26611
03-APR-2007 03:50:33
 50AlpUMa
36
 26611
03-APR-2007 03:56:46
 7BetUMi
60
 26611
03-APR-2007 03:58:36
 1AlpUMi
49
 26611
03-APR-2007 04:06:16
 5AlpCep
89
 26611
03-APR-2007 04:21:50
 8EpsPeg
61
 26611
03-APR-2007 04:24:20
 34AlpAqr
162
 26611
03-APR-2007 04:26:28
 22BetAqr
154
 26611
03-APR-2007 04:29:01
 49DelCap
142
 26611
03-APR-2007 04:39:11
 DSA1022
0
 26611
03-APR-2007 04:41:17
 AlpPav
45
 26611
03-APR-2007 04:48:48
 AlpTrA
43
 26612
03-APR-2007 04:50:41
 BetTrA
134
 26612
03-APR-2007 04:53:18
 Alp1Cen
4
 26612
03-APR-2007 04:56:02
 BetCru
20
 26612
03-APR-2007 04:58:54
 GamCen
64
 26612
03-APR-2007 05:01:30
 IotCen
123
 26612
03-APR-2007 05:06:17
 9BetCrv
106
 26612
03-APR-2007 05:08:14
 4GamCrv
100
 26612
03-APR-2007 05:17:50
 94BetLeo
62
 26612
03-APR-2007 05:19:29
 68DelLeo
96
 26612
03-APR-2007 05:26:17
 52PsiUMa
174
 26612
03-APR-2007 05:29:14
 64GamUMa
87
 26612
03-APR-2007 05:31:08
 50AlpUMa
36
 26612
03-APR-2007 05:37:21
 7BetUMi
60
 26612
03-APR-2007 05:39:12
 1AlpUMi
49
 26612
03-APR-2007 05:46:52
 5AlpCep
89
 26612
03-APR-2007 06:02:26
 8EpsPeg
61
 26612
03-APR-2007 06:04:56
 34AlpAqr
162
 26612
03-APR-2007 06:07:04
 22BetAqr
154
 26612
03-APR-2007 06:09:37
 49DelCap
142
 26612
03-APR-2007 06:19:47
 DSA1022
0
 26612
03-APR-2007 06:21:53
 AlpPav
45
 26612
03-APR-2007 06:29:25
 AlpTrA
43
 26613
03-APR-2007 06:31:18
 BetTrA
134
 26613
03-APR-2007 06:33:55
 Alp1Cen
4
 26613
03-APR-2007 06:36:38
 BetCru
20
 26613
03-APR-2007 06:39:31
 GamCen
64
 26613
03-APR-2007 06:42:06
 IotCen
123
 26613
03-APR-2007 06:46:53
 9BetCrv
106
 26613
03-APR-2007 06:48:50
 4GamCrv
100
 26613
03-APR-2007 06:58:26
 94BetLeo
62
 26613
03-APR-2007 07:00:05
 68DelLeo
96
 26613
03-APR-2007 07:06:53
 52PsiUMa
174
 26613
03-APR-2007 07:09:50
 64GamUMa
87
 26613
03-APR-2007 07:11:44
 50AlpUMa
36
 26613
03-APR-2007 07:17:57
 7BetUMi
60
 26613
03-APR-2007 07:19:48
 1AlpUMi
49
 26613
03-APR-2007 07:27:28
 5AlpCep
89
 26613
03-APR-2007 07:43:02
 8EpsPeg
61
 26613
03-APR-2007 07:45:32
 34AlpAqr
162
 26613
03-APR-2007 07:47:40
 22BetAqr
154
 26613
03-APR-2007 07:50:14
 49DelCap
142
 26613
03-APR-2007 08:00:24
 DSA1022
0
 26613
03-APR-2007 08:02:29
 AlpPav
45
 26613

2.4 Summary of processed GOM_TRA_1P products

Nr Filename UTC Start time Limb Duration Star Id Star Name Star Mag Star Temp Nb Meas Orbit Prod. error
1
 GOM_TRA_1PNPDE20070403_200422_000000412057_00014_26621_7722.N1
 03-APR-2007 20:04:22
 Straylight
 41.000
 64
 Gam Cen
2.2000
 10600.
 82
 26621
 No
2
 GOM_TRA_1PNPDE20070403_200659_000000432057_00014_26621_7723.N1
 03-APR-2007 20:06:59
 Straylight
 42.500
 123
 Iot Cen
2.7500
 10200.
 85
 26621
 No
3
 GOM_TRA_1PNPDE20070403_201144_000000472057_00014_26621_7724.N1
 03-APR-2007 20:11:44
 Twi_and_stray
 46.500
 106
 9Bet Crv
2.6480
 5600.0
 93
 26621
 No
4
 GOM_TRA_1PNPDE20070403_201340_000000422057_00014_26621_7725.N1
 03-APR-2007 20:13:40
 Twi_and_stray
 41.500
 100
 4Gam Crv
2.5800
 13100.
 83
 26621
 No
5
 GOM_TRA_1PNPDE20070403_202315_000000382057_00014_26621_7726.N1
 03-APR-2007 20:23:15
 Bright
 37.500
 62
 94Bet Leo
2.1360
 9700.0
 75
 26621
 No
6
 GOM_TRA_1PNPDE20070403_202455_000000362057_00014_26621_7727.N1
 03-APR-2007 20:24:55
 Bright
 36.000
 96
 68Del Leo
2.5600
 9300.0
 72
 26621
 No
7
 GOM_TRA_1PNPDE20070403_203142_000000362057_00014_26621_7728.N1
 03-APR-2007 20:31:42
 Bright
 36.000
 174
 52Psi UMa
3.0040
 4400.0
 72
 26621
 No
8
 GOM_TRA_1PNPDE20070403_203438_000000372057_00014_26621_7729.N1
 03-APR-2007 20:34:38
 Bright
 36.500
 87
 64Gam UMa
2.4330
 11000.
 73
 26621
 No
9
 GOM_TRA_1PNPDE20070403_203634_000000362057_00014_26621_7730.N1
 03-APR-2007 20:36:34
 Bright
 36.000
 36
 50Alp UMa
1.8000
 6300.0
 72
 26621
 No
10
 GOM_TRA_1PNPDE20070403_204244_000000402057_00014_26621_7731.N1
 03-APR-2007 20:42:44
 Bright
 40.000
 60
 7Bet UMi
2.0810
 3950.0
 80
 26621
 No
11
 GOM_TRA_1PNPDE20070403_204438_000000362057_00014_26621_7732.N1
 03-APR-2007 20:44:38
 Bright
 36.000
 49
 1Alp UMi
1.9900
 6300.0
 72
 26621
 No
12
 GOM_TRA_1PNPDE20070403_205217_000000362057_00014_26621_7733.N1
 03-APR-2007 20:52:17
 Bright
 35.500
 89
 5Alp Cep
2.4510
 8000.0
 71
 26621
 No
13
 GOM_TRA_1PNPDE20070403_210754_000000462057_00014_26621_7734.N1
 03-APR-2007 21:07:54
 Twi_and_stray
 46.000
 61
 8Eps Peg
2.1000
 3900.0
 92
 26621
 No
14
 GOM_TRA_1PNPDE20070403_211024_000000412057_00014_26621_7735.N1
 03-APR-2007 21:10:24
 Twilight
 40.500
 162
 34Alp Aqr
2.9440
 5350.0
 81
 26621
 No
15
 GOM_TRA_1PNPDE20070403_211233_000000452057_00014_26621_7736.N1
 03-APR-2007 21:12:33
 Dark
 44.500
 154
 22Bet Aqr
2.8990
 5700.0
 89
 26621
 No
16
 GOM_TRA_1PNPDE20070403_211506_000000412057_00014_26621_7862.N1
 03-APR-2007 21:15:06
 Dark
 40.500
 142
 49Del Cap
2.8500
 8900.0
 81
 26621
 No
17
 GOM_TRA_1PNPDE20070403_212722_000000382057_00014_26621_7863.N1
 03-APR-2007 21:27:22
 Dark
 38.000
 45
 Alp Pav
1.9400
 26000.
 76
 26621
 No
18
 GOM_TRA_1PNPDE20070403_213454_000000402057_00015_26622_7864.N1
 03-APR-2007 21:34:54
 Dark
 40.000
 43
 Alp TrA
1.9100
 4250.0
 80
 26622
 No
19
 GOM_TRA_1PNPDE20070403_213648_000000382057_00015_26622_7865.N1
 03-APR-2007 21:36:48
 Dark
 38.000
 134
 Bet TrA
2.8100
 6600.0
 76
 26622
 No
20
 GOM_TRA_1PNPDE20070403_213924_000000522057_00015_26622_7866.N1
 03-APR-2007 21:39:24
 Straylight
 52.000
 4
 Alp1Cen
-0.010000
 5800.0
 104
 26622
 No
21
 GOM_TRA_1PNPDE20070403_214214_000000442057_00015_26622_7867.N1
 03-APR-2007 21:42:14
 Straylight
 43.500
 78
 Alp Lup
2.3040
 28000.
 87
 26622
 No
22
 GOM_TRA_1PNPDE20070403_214459_000000432057_00015_26622_7868.N1
 03-APR-2007 21:44:59
 Straylight
 42.500
 64
 Gam Cen
2.2000
 10600.
 85
 26622
 No
23
 GOM_TRA_1PNPDE20070403_214735_000000442057_00015_26622_7869.N1
 03-APR-2007 21:47:35
 Straylight
 43.500
 123
 Iot Cen
2.7500
 10200.
 87
 26622
 No
24
 GOM_TRA_1PNPDE20070403_215220_000000442057_00015_26622_7870.N1
 03-APR-2007 21:52:20
 Twi_and_stray
 44.000
 106
 9Bet Crv
2.6480
 5600.0
 88
 26622
 No
25
 GOM_TRA_1PNPDE20070403_215416_000000402057_00015_26622_7871.N1
 03-APR-2007 21:54:16
 Twi_and_stray
 40.000
 100
 4Gam Crv
2.5800
 13100.
 80
 26622
 No
26
 GOM_TRA_1PNPDE20070403_220351_000000382057_00015_26622_7872.N1
 03-APR-2007 22:03:51
 Bright
 37.500
 62
 94Bet Leo
2.1360
 9700.0
 75
 26622
 No
27
 GOM_TRA_1PNPDE20070403_220531_000000352057_00015_26622_7873.N1
 03-APR-2007 22:05:31
 Bright
 35.000
 96
 68Del Leo
2.5600
 9300.0
 70
 26622
 No
28
 GOM_TRA_1PNPDE20070403_221218_000000362057_00015_26622_7874.N1
 03-APR-2007 22:12:18
 Bright
 35.500
 174
 52Psi UMa
3.0040
 4400.0
 71
 26622
 No
29
 GOM_TRA_1PNPDE20070403_221514_000000372057_00015_26622_7875.N1
 03-APR-2007 22:15:14
 Bright
 37.000
 87
 64Gam UMa
2.4330
 11000.
 74
 26622
 No
30
 GOM_TRA_1PNPDE20070403_221709_000000382057_00015_26622_7876.N1
 03-APR-2007 22:17:09
 Bright
 37.500
 36
 50Alp UMa
1.8000
 6300.0
 75
 26622
 No
31
 GOM_TRA_1PNPDE20070403_222319_000000582057_00015_26622_7877.N1
 03-APR-2007 22:23:19
 Bright
 58.000
 60
 7Bet UMi
2.0810
 3950.0
 116
 26622
 No
32
 GOM_TRA_1PNPDE20070403_222513_000000352057_00015_26622_7878.N1
 03-APR-2007 22:25:13
 Bright
 34.500
 49
 1Alp UMi
1.9900
 6300.0
 69
 26622
 No
33
 GOM_TRA_1PNPDE20070403_223253_000000452057_00015_26622_7879.N1
 03-APR-2007 22:32:53
 Bright
 44.500
 89
 5Alp Cep
2.4510
 8000.0
 89
 26622
 No
34
 GOM_TRA_1PNPDE20070403_224830_000000452057_00015_26622_7880.N1
 03-APR-2007 22:48:30
 Twi_and_stray
 45.000
 61
 8Eps Peg
2.1000
 3900.0
 90
 26622
 No
35
 GOM_TRA_1PNPDE20070403_225100_000000412057_00015_26622_7881.N1
 03-APR-2007 22:51:00
 Twilight
 40.500
 162
 34Alp Aqr
2.9440
 5350.0
 81
 26622
 No
36
 GOM_TRA_1PNPDE20070403_225309_000000452057_00015_26622_7882.N1
 03-APR-2007 22:53:09
 Dark
 44.500
 154
 22Bet Aqr
2.8990
 5700.0
 89
 26622
 No
37
 GOM_TRA_1PNPDE20070403_225542_000000402057_00015_26622_8007.N1
 03-APR-2007 22:55:42
 Dark
 40.000
 142
 49Del Cap
2.8500
 8900.0
 80
 26622
 Yes
38
 GOM_TRA_1PNPDE20070403_230758_000000392057_00015_26622_8008.N1
 03-APR-2007 23:07:58
 Dark
 39.000
 45
 Alp Pav
1.9400
 26000.
 78
 26622
 No
39
 GOM_TRA_1PNPDE20070403_231530_000000402057_00016_26623_8009.N1
 03-APR-2007 23:15:30
 Dark
 39.500
 43
 Alp TrA
1.9100
 4250.0
 79
 26623
 No
40
 GOM_TRA_1PNPDE20070403_231724_000000392057_00016_26623_8010.N1
 03-APR-2007 23:17:24
 Dark
 38.500
 134
 Bet TrA
2.8100
 6600.0
 77
 26623
 No
41
 GOM_TRA_1PNPDE20070403_232000_000000532057_00016_26623_8011.N1
 03-APR-2007 23:20:00
 Straylight
 52.500
 4
 Alp1Cen
-0.010000
 5800.0
 105
 26623
 No
42
 GOM_TRA_1PNPDE20070403_232251_000000452057_00016_26623_8012.N1
 03-APR-2007 23:22:51
 Straylight
 44.500
 78
 Alp Lup
2.3040
 28000.
 89
 26623
 No
43
 GOM_TRA_1PNPDE20070403_232535_000000412057_00016_26623_8013.N1
 03-APR-2007 23:25:35
 Straylight
 40.500
 64
 Gam Cen
2.2000
 10600.
 81
 26623
 No
44
 GOM_TRA_1PNPDE20070403_232811_000000422057_00016_26623_8014.N1
 03-APR-2007 23:28:11
 Straylight
 41.500
 123
 Iot Cen
2.7500
 10200.
 83
 26623
 No
45
 GOM_TRA_1PNPDE20070403_233256_000000422057_00016_26623_8015.N1
 03-APR-2007 23:32:56
 Twi_and_stray
 41.500
 106
 9Bet Crv
2.6480
 5600.0
 83
 26623
 No
46
 GOM_TRA_1PNPDE20070403_233452_000000412057_00016_26623_8016.N1
 03-APR-2007 23:34:52
 Twi_and_stray
 40.500
 100
 4Gam Crv
2.5800
 13100.
 81
 26623
 No
47
 GOM_TRA_1PNPDE20070403_234426_000000372057_00016_26623_8017.N1
 03-APR-2007 23:44:26
 Bright
 37.000
 62
 94Bet Leo
2.1360
 9700.0
 74
 26623
 No
48
 GOM_TRA_1PNPDE20070403_234606_000000362057_00016_26623_8018.N1
 03-APR-2007 23:46:06
 Bright
 36.000
 96
 68Del Leo
2.5600
 9300.0
 72
 26623
 No
49
 GOM_TRA_1PNPDE20070403_235254_000000372057_00016_26623_8019.N1
 03-APR-2007 23:52:54
 Bright
 37.000
 174
 52Psi UMa
3.0040
 4400.0
 74
 26623
 No

 

3. Plot of GOMOS spectrometers and photometers temperatures from level 1b data

qds_image


 

4. Overview of dark signal processing per product

The Dark Charge (DC) is a temperature-dependant signal added to the useful measurements and it is therefore substracted
from them during the processing. There are two phenomena that produce a continuous increase of the DC: the "hot pixels"
(a pixel is "hot" when its DC exceeds by a significant amount its value measured on ground at the same temperature) and
the "Random Telegraphic Signal" (abrupt change positive or negative of the CCD pixel signal, random in time, affecting
only the DC part of the signal and not the photon generated signal).
In this section a list of products that did not use the Dark Sky Area (DSA) observation for the DC computation is given.
It is also provided the mean DC plot per product for dark limb products with no error flag set.

4.1 These products did not use the DSA observation for DC computation:

Product name DC information
GOM_TRA_1PNPDE20070403_200422_000000412057_00014_26621_7722.N1
 DC map used
GOM_TRA_1PNPDE20070403_200659_000000432057_00014_26621_7723.N1
 DC map used
GOM_TRA_1PNPDE20070403_201144_000000472057_00014_26621_7724.N1
 DC map used
GOM_TRA_1PNPDE20070403_201340_000000422057_00014_26621_7725.N1
 DC map used
GOM_TRA_1PNPDE20070403_202315_000000382057_00014_26621_7726.N1
 DC map used
GOM_TRA_1PNPDE20070403_202455_000000362057_00014_26621_7727.N1
 DC map used
GOM_TRA_1PNPDE20070403_203142_000000362057_00014_26621_7728.N1
 DC map used
GOM_TRA_1PNPDE20070403_203438_000000372057_00014_26621_7729.N1
 DC map used
GOM_TRA_1PNPDE20070403_203634_000000362057_00014_26621_7730.N1
 DC map used
GOM_TRA_1PNPDE20070403_204244_000000402057_00014_26621_7731.N1
 DC map used
GOM_TRA_1PNPDE20070403_204438_000000362057_00014_26621_7732.N1
 DC map used
GOM_TRA_1PNPDE20070403_205217_000000362057_00014_26621_7733.N1
 DC map used
GOM_TRA_1PNPDE20070403_210754_000000462057_00014_26621_7734.N1
 DC map used
GOM_TRA_1PNPDE20070403_211024_000000412057_00014_26621_7735.N1
 DC map used
GOM_TRA_1PNPDE20070403_211233_000000452057_00014_26621_7736.N1
 DC map used

4.2 Plot of mean dark charges per product: only products in DARK limb conditions without errors are used

qds_image


 

5. Demodulation flag and quality information monitoring

In this section it is presented the modulation information extracted from the pcd (product confidence data)
at measurement level and information extracted from the Quality Summary dataset. Only products without errors
(error flag in the MPH set to "0") are used.

 

5.1 Percentage of products during reporting period with:

At least one measurement with demodulation flag set:
10.4167 %
Reference spectrum computed from DB:
0.00000 %
Reference spectrum with small number of measurements:
0.00000 %
SATU data not used:
0.00000 %

 

5.2 Plot quality information per product (time dependant)

qds_image


 

5.3 Plot quality information per product (world map)

qds_image


 

6. Statistics and plot of tangent altitude of the last measurement (DARK & BRIGHT products without errors)

6.1 Statistics on tangent altitude lost:

Statistics DARK BRIGHT TWILIGHT
Mean:
16.684
 19.361
 13.498
St. deviation:
3.6490
 4.7668
 0.012976
Maximum:
21.347
 24.584
 13.507
Minimum:
11.271
 2.8731
 13.489
Number of data:
9.0000
 19.000
 2.0000

 

6.2 Plot for DARK limb products

qds_image


 

6.3 Plot for BRIGHT limb products

qds_image


 

6.3 Plot for TWILIGHT limb products

qds_image


 

7. Star Acquisition and Tracking Unit (SATU)

The Star Acquisition and Tracking Unit (SATU) analyses the position of the tracked star beam collected by
the GOMOS telescope and deflected by the optical beam dispatcher. The main functin of the SATU is to detect
a star, provide its image position to the science data electronics and to help the pointing function to keep
the star image at a fixed position. In tracking mode the SATU data is recorded with a frecuency of 100 Hz.

 

7.1 SATU 'X' and 'Y' axis plots (dark limb)

SATU CCD 'X' and 'Y' axis plots are provided in order to detect any abnormal behaviour of the tracking system.
For every occultation (color) the plot should remain stable (with some noise) until we are deep in the atmosphere
where big fluctuations are registered due to the refractive effects.

qds_image

qds_image


 

7.2 Statistics on SATU Noise Equivalent Angle (NEA) for DARK (D) and BRIGHT (B) products above 105 kms

The Star Acquisition and Tracking Unit (it is the CCD that tracks the star while it is occulted) Noise Equivalent
Angle consists of the statistical angular variation of the SATU data above the atmosphere.
Statistics (in microradians) above 105 km are computed for every occultation, giving four values per occultation: one in the 'X'
direction and one in the 'Y' direction for dark and bright limbs. A mean value per day in every direction and limb
is calculated and monitored in order to assess instrument performance in terms of star pointing.

 

7.2.1 SATU NEA Statistics (table)

Statistics SATU X (D) SATU Y (D) SATU X (B) SATU Y (B)
Mean:
0.072099
 -0.92228
 0.14061
 -0.81295
St. deviation:
0.61076
 2.1277
 0.74575
 2.2000
Maximum:
3.3000
 5.6000
 4.0000
 5.5000
Minimum:
-3.6000
 -8.5000
 -3.8000
 -10.800
Number of data:
8000.0
 8000.0
 15700.
 15700.

 

7.2.2 Trend of daily SATU NEA St. deviation since 1st April 2006 (dark limb)

The long term trend of the SATU 'X' and 'Y' standard deviations should be constant during the whole mission.

The colorbar represents the start tangent altitude (km) of the occultations.

Upper curve: STD of SATU Y axis
Lower curve: STD of SATU X axis

qds_image


 

8. Auxiliary Data Files used for the production reported in section 2.4

The number reported in the third column indicates since which file (see list in section 2.4) the corresponding
auxiliary file has been used. The fourth column is the date of those product files.

 
Type Auxiliary Filename Used since product Used since product date
INST_PHYS_CHARACTERISTICS
GOM_INS_AXNIEC20050627_150713_20030716_120000_20100101_000000
1
 03-APR-2007 20:04:22
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20070403_103751_20070402_000000_20100101_000000
1
 03-APR-2007 20:04:22
LEVEL-1B_PROC_CONFIG
GOM_PR1_AXNIEC20050627_151042_20020301_000000_20100101_000000
1
 03-APR-2007 20:04:22
STAR_CATALOGUE
GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000
1
 03-APR-2007 20:04:22
STELLAR_SPECTRA_DATABANK
GOM_STS_AXNIEC20040308_103538_20020101_160000_20100101_000000
1
 03-APR-2007 20:04:22
ECMWF_FILE
AUX_ECF_AXNECM20070403_061111_20070403_150000_20070404_030000
1
 03-APR-2007 20:04:22
ECMWF_FILE
AUX_ECF_AXNECM20070403_061112_20070403_210000_20070404_090000
16
 03-APR-2007 21:15:06
OPTIONAL_ECMWF_FILE
MISSING
1
 03-APR-2007 20:04:22
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20070403_195906_000041442057_00014_26621_3100.N1
 1
 03-APR-2007 20:04:22
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20070403_211329_000057382057_00014_26621_3101.N1
 37
 03-APR-2007 22:55:42

Reports
Daily Report Level 2 Dataset IPF v6.01
Daily Reports of NRT data
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Instrument Anomaly Reports
Monthly Reports
  ©PCS/Esrin/ESA  e-mail webmaster Last modified:
24-Apr-2008