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GOMOS Daily Report 05-MAR-2004

GOMOS Daily Report 05-MAR-2004


SUMMARY

1. General Info

 
2. Summary of products arrived in PCF (Product Control Facility)
2.1 Level 0 products arrived in PCF during actual month (see template here)
2.2 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

 
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

 
7.Statistics on SATU Noise Equivalent Angle



 

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
 07MAR2004 06:57:26
Data source version
 <Any version>
Start time of products
 05-MAR-2004 (05MAR2004 00:00:00)
Stop time of products
 06-MAR-2004 (06MAR2004 00:00:00)
Store outputs flag
 1
Nb of level 1b prods
 36
Nb of prods with errors
 1

2. Summary of products arrived in PCF

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

2.2 Summary of processed GOM_TRA_1P products.

Filename UTC Start time Limb Duration Star Id Star Name Star Mag Star Temp Nb Meas Orbit Prod. error
GOM_TRA_1PNPDE20040305_000137_000000692024_00445_10519_0027.N1
 05-MAR-2004 00:01:37
 Dark
 68.500
 86
 35Eta Oph
2.4300
 10200.
 137
 10519
 No
GOM_TRA_1PNPDE20040305_000354_000000482024_00445_10519_0028.N1
 05-MAR-2004 00:03:54
 Dark
 47.500
 25
 35Lam Sco
1.6200
 28000.
 95
 10519
 No
GOM_TRA_1PNPDE20040305_001011_000000492024_00446_10520_0029.N1
 05-MAR-2004 00:10:11
 Dark
 48.500
 43
 Alp TrA
1.9100
 4250.0
 97
 10520
 No
GOM_TRA_1PNPDE20040305_001226_000000412024_00446_10520_0030.N1
 05-MAR-2004 00:12:26
 Dark
 40.500
 145
 Gam TrA
2.8720
 10600.
 81
 10520
 No
GOM_TRA_1PNPDE20040305_001354_000000542024_00446_10520_0031.N1
 05-MAR-2004 00:13:54
 Dark
 53.500
 4
 Alp1Cen
-0.010000
 5800.0
 107
 10520
 No
GOM_TRA_1PNPDE20040305_001513_000000462024_00446_10520_0032.N1
 05-MAR-2004 00:15:13
 Dark
 45.500
 10
 Bet Cen
0.61000
 28000.
 91
 10520
 No
GOM_TRA_1PNPDE20040305_001737_000000472024_00446_10520_0033.N1
 05-MAR-2004 00:17:37
 Dark
 47.000
 12
 Alp1Cru
0.77500
 30000.
 94
 10520
 No
GOM_TRA_1PNPDE20040305_001928_000000742024_00446_10520_0034.N1
 05-MAR-2004 00:19:28
 Dark
 73.500
 54
 5The Cen
2.0550
 4500.0
 147
 10520
 No
GOM_TRA_1PNPDE20040305_002239_000000402024_00446_10520_0035.N1
 05-MAR-2004 00:22:39
 Dark
 40.000
 91
 Kap Vel
2.4900
 26000.
 80
 10520
 No
GOM_TRA_1PNPDE20040305_002558_000000482024_00446_10520_0036.N1
 05-MAR-2004 00:25:58
 Dark
 48.000
 65
 Lam Vel
2.2040
 4400.0
 96
 10520
 No
GOM_TRA_1PNPDE20040305_002844_000000682024_00446_10520_0000.N1
 05-MAR-2004 00:28:44
 Dark
 67.500
 106
 9Bet Crv
2.6480
 5600.0
 135
 10520
 Yes
GOM_TRA_1PNPDE20040305_003132_000000632024_00446_10520_0001.N1
 05-MAR-2004 00:31:32
 Dark
 63.000
 100
 4Gam Crv
2.5800
 13100.
 126
 10520
 No
GOM_TRA_1PNPDE20040305_003525_000000472024_00446_10520_0002.N1
 05-MAR-2004 00:35:25
 Dark
 47.000
 48
 30Alp Hya
1.9770
 4100.0
 94
 10520
 No
GOM_TRA_1PNPDE20040305_004120_000000432024_00446_10520_0003.N1
 05-MAR-2004 00:41:20
 Bright
 42.500
 22
 32Alp Leo
1.3600
 15200.
 85
 10520
 No
GOM_TRA_1PNPDE20040305_004350_000000442024_00446_10520_0004.N1
 05-MAR-2004 00:43:50
 Bright
 44.000
 51
 41Gam1Leo
2.0100
 4500.0
 88
 10520
 No
GOM_TRA_1PNPDE20040305_004518_000000482024_00446_10520_0005.N1
 05-MAR-2004 00:45:18
 Bright
 48.000
 96
 68Del Leo
2.5600
 9300.0
 96
 10520
 No
GOM_TRA_1PNPDE20040305_004805_000000402024_00446_10520_0006.N1
 05-MAR-2004 00:48:05
 Bright
 39.500
 24
 66Alp Gem
1.5800
 10200.
 79
 10520
 No
GOM_TRA_1PNPDE20040305_005225_000000442024_00446_10520_0007.N1
 05-MAR-2004 00:52:25
 Bright
 44.000
 174
 52Psi UMa
3.0040
 4400.0
 88
 10520
 No
GOM_TRA_1PNPDE20040305_005520_000000412024_00446_10520_0008.N1
 05-MAR-2004 00:55:20
 Bright
 40.500
 82
 48Bet UMa
2.3650
 10600.
 81
 10520
 No
GOM_TRA_1PNPDE20040305_005643_000000422024_00446_10520_0009.N1
 05-MAR-2004 00:56:43
 Bright
 41.500
 36
 50Alp UMa
1.8000
 6300.0
 83
 10520
 No
GOM_TRA_1PNPDE20040305_005930_000000482024_00446_10520_0010.N1
 05-MAR-2004 00:59:30
 Bright
 47.500
 32
 77Eps UMa
1.7630
 11000.
 95
 10520
 No
GOM_TRA_1PNPDE20040305_010100_000000522024_00446_10520_0011.N1
 05-MAR-2004 01:01:00
 Bright
 51.500
 55
 79Zet UMa
2.0600
 10200.
 103
 10520
 No
GOM_TRA_1PNPDE20040305_010319_000000382024_00446_10520_0012.N1
 05-MAR-2004 01:03:19
 Bright
 37.500
 49
 1Alp UMi
1.9900
 6300.0
 75
 10520
 No
GOM_TRA_1PNPDE20040305_010830_000000482024_00446_10520_0013.N1
 05-MAR-2004 01:08:30
 Bright
 47.500
 119
 14Eta Dra
2.7270
 4700.0
 95
 10520
 No
GOM_TRA_1PNPDE20040305_011056_000000372024_00446_10520_0014.N1
 05-MAR-2004 01:10:56
 Bright
 36.500
 89
 5Alp Cep
2.4510
 8000.0
 73
 10520
 No
GOM_TRA_1PNPDE20040305_011305_000000482024_00446_10520_0015.N1
 05-MAR-2004 01:13:05
 Bright
 47.500
 130
 23Bet Dra
2.7990
 5800.0
 95
 10520
 No
GOM_TRA_1PNPDE20040305_011602_000000372024_00446_10520_0016.N1
 05-MAR-2004 01:16:02
 Bright
 37.000
 19
 50Alp Cyg
1.2460
 10500.
 74
 10520
 No
GOM_TRA_1PNPDE20040305_011735_000000382024_00446_10520_0017.N1
 05-MAR-2004 01:17:35
 Bright
 37.500
 66
 37Gam Cyg
2.2080
 5900.0
 75
 10520
 No
GOM_TRA_1PNPDE20040305_011910_000000372024_00446_10520_0018.N1
 05-MAR-2004 01:19:10
 Bright
 37.000
 92
 53Eps Cyg
2.5000
 4500.0
 74
 10520
 No
GOM_TRA_1PNPDE20040305_012218_000001022024_00446_10520_0019.N1
 05-MAR-2004 01:22:18
 Dark
 101.50
 133
 40Zet Her
2.8070
 6000.0
 203
 10520
 No
GOM_TRA_1PNPDE20040305_012624_000000452024_00446_10520_0020.N1
 05-MAR-2004 01:26:24
 Bright
 44.500
 168
 17Zet Aql
2.9860
 11000.
 89
 10520
 No
GOM_TRA_1PNPDE20040305_013023_000000782024_00446_10520_0021.N1
 05-MAR-2004 01:30:23
 Dark
 78.000
 59
 55Alp Oph
2.0800
 8900.0
 156
 10520
 No
GOM_TRA_1PNPDE20040305_013301_000000702024_00446_10520_0022.N1
 05-MAR-2004 01:33:01
 Dark
 70.000
 126
 60Bet Oph
2.7700
 4250.0
 140
 10520
 No
GOM_TRA_1PNPDE20040305_013622_000000422024_00446_10520_0023.N1
 05-MAR-2004 01:36:22
 Dark
 42.000
 155
 41Pi Sgr
2.9000
 6600.0
 84
 10520
 No
GOM_TRA_1PNPDE20040305_014031_000000542024_00446_10520_0024.N1
 05-MAR-2004 01:40:31
 Dark
 54.000
 116
 19Del Sgr
2.7000
 4100.0
 108
 10520
 No
GOM_TRA_1PNPDE20040305_014214_000000712024_00446_10520_0025.N1
 05-MAR-2004 01:42:14
 Dark
 70.500
 86
 35Eta Oph
2.4300
 10200.
 141
 10520
 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 All products used the DSA observation for the DC computation

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

5.1 Percentage of products during reporting period with:

At least one measurement with demodulation flag set:
20.0000 %
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

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
Mean:
14.344
 21.031
St. deviation:
4.1664
 2.0736
Maximum:
20.267
 23.612
Minimum:
7.2516
 16.514
Number of data:
18.000
 17.000

 

6.2 Plot for DARK limb products

qds_image


 

6.3 Plot for BRIGHT limb products

qds_image


 

7. 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 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.

Statistics SATU X (D) SATU Y (D) SATU X (B) SATU Y (B)
Mean:
1462.1
 1448.5
 1461.6
 1447.7
St. deviation:
5.3193
 5.8180
 6.9465
 7.6613
Maximum:
1594.0
 1546.0
 1512.0
 1495.0
Minimum:
1440.0
 1428.0
 1420.0
 1409.0
Number of data:
25900.
 25900.
 19250.
 19250.

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