ERS Envisat ALOS-ADEN  
   PCS Home 19-Jun-2013     
GOMOS
Articles & Studies
Consolidated Datasets
Documentation
Mission events history
Planned occultation maps
Reports
Search:
Advanced Search
Glossary
FAQ
Contact us
 
Select period:
GOMOS Daily Report 28-MAR-2004

GOMOS Daily Report 28-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
 29MAR2004 06:59:22
Data source version
 <Any version>
Start time of products
 28-MAR-2004 (28MAR2004 00:00:00)
Stop time of products
 29-MAR-2004 (29MAR2004 00:00:00)
Store outputs flag
 1
Nb of level 1b prods
 50
Nb of prods with errors
 0

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_1PNPDE20040328_000057_000000572025_00274_10849_0030.N1
 28-MAR-2004 00:00:57
 Dark
 57.000
 54
 5The Cen
2.0550
 4500.0
 114
 10849
 No
GOM_TRA_1PNPDE20040328_000643_000000552025_00274_10849_0000.N1
 28-MAR-2004 00:06:43
 Dark
 55.000
 169
 46Gam Hya
2.9910
 4700.0
 110
 10849
 No
GOM_TRA_1PNPDE20040328_000917_000000442025_00274_10849_0001.N1
 28-MAR-2004 00:09:17
 Dark
 44.000
 100
 4Gam Crv
2.5800
 13100.
 88
 10849
 No
GOM_TRA_1PNPDE20040328_001116_000000632025_00274_10849_0002.N1
 28-MAR-2004 00:11:16
 Dark
 63.000
 15
 67Alp Vir
0.97600
 28000.
 126
 10849
 No
GOM_TRA_1PNPDE20040328_001436_000000482025_00274_10849_0003.N1
 28-MAR-2004 00:14:36
 Bright
 48.000
 121
 29Gam Vir
2.7400
 7200.0
 96
 10849
 No
GOM_TRA_1PNPDE20040328_001835_000000412025_00274_10849_0004.N1
 28-MAR-2004 00:18:35
 Bright
 41.000
 22
 32Alp Leo
1.3600
 15200.
 82
 10849
 No
GOM_TRA_1PNPDE20040328_002046_000000392025_00274_10849_0005.N1
 28-MAR-2004 00:20:46
 Bright
 38.500
 96
 68Del Leo
2.5600
 9300.0
 77
 10849
 No
GOM_TRA_1PNPDE20040328_002209_000000382025_00274_10849_0006.N1
 28-MAR-2004 00:22:09
 Bright
 38.000
 166
 17Eps Leo
2.9800
 6000.0
 76
 10849
 No
GOM_TRA_1PNPDE20040328_002738_000000402025_00274_10849_0007.N1
 28-MAR-2004 00:27:38
 Bright
 39.500
 174
 52Psi UMa
3.0040
 4400.0
 79
 10849
 No
GOM_TRA_1PNPDE20040328_003057_000000382025_00274_10849_0008.N1
 28-MAR-2004 00:30:57
 Bright
 38.000
 82
 48Bet UMa
2.3650
 10600.
 76
 10849
 No
GOM_TRA_1PNPDE20040328_003229_000000382025_00274_10849_0009.N1
 28-MAR-2004 00:32:29
 Bright
 37.500
 36
 50Alp UMa
1.8000
 6300.0
 75
 10849
 No
GOM_TRA_1PNPDE20040328_003505_000000692025_00274_10849_0010.N1
 28-MAR-2004 00:35:05
 Bright
 68.500
 180
 27Gam Boo
3.0400
 8000.0
 137
 10849
 No
GOM_TRA_1PNPDE20040328_003902_000000422025_00274_10849_0011.N1
 28-MAR-2004 00:39:02
 Bright
 42.000
 60
 7Bet UMi
2.0810
 3950.0
 84
 10849
 No
GOM_TRA_1PNPDE20040328_004214_000000492025_00274_10849_0012.N1
 28-MAR-2004 00:42:14
 Bright
 48.500
 119
 14Eta Dra
2.7270
 4700.0
 97
 10849
 No
GOM_TRA_1PNPDE20040328_004646_000000402025_00274_10849_0013.N1
 28-MAR-2004 00:46:46
 Bright
 39.500
 76
 27Gam Cas
2.3000
 30000.
 79
 10849
 No
GOM_TRA_1PNPDE20040328_004800_000000382025_00274_10849_0014.N1
 28-MAR-2004 00:48:00
 Bright
 37.500
 74
 11Bet Cas
2.2680
 6600.0
 75
 10849
 No
GOM_TRA_1PNPDE20040328_005313_000000452025_00274_10849_0015.N1
 28-MAR-2004 00:53:13
 Bright
 44.500
 144
 18Del Cyg
2.8600
 11000.
 89
 10849
 No
GOM_TRA_1PNPDE20040328_005458_000000462025_00274_10849_0016.N1
 28-MAR-2004 00:54:58
 Bright
 46.000
 66
 37Gam Cyg
2.2080
 5900.0
 92
 10849
 No
GOM_TRA_1PNPDE20040328_005654_000000432025_00274_10849_0017.N1
 28-MAR-2004 00:56:54
 Bright
 42.500
 92
 53Eps Cyg
2.5000
 4500.0
 85
 10849
 No
GOM_TRA_1PNPDE20040328_010320_000000452025_00274_10849_0018.N1
 28-MAR-2004 01:03:20
 Bright
 44.500
 61
 8Eps Peg
2.1000
 3900.0
 89
 10849
 No
GOM_TRA_1PNPDE20040328_010628_000000622025_00274_10849_0019.N1
 28-MAR-2004 01:06:28
 Dark
 61.500
 11
 53Alp Aql
0.76500
 8000.0
 123
 10849
 No
GOM_TRA_1PNPDE20040328_011028_000000432025_00274_10849_0020.N1
 28-MAR-2004 01:10:28
 Dark
 42.500
 142
 49Del Cap
2.8500
 8900.0
 85
 10849
 No
GOM_TRA_1PNPDE20040328_012752_000000602025_00275_10850_0023.N1
 28-MAR-2004 01:27:52
 Dark
 59.500
 25
 35Lam Sco
1.6200
 28000.
 119
 10850
 No
GOM_TRA_1PNPDE20040328_013005_000000412025_00275_10850_0024.N1
 28-MAR-2004 01:30:05
 Dark
 41.000
 43
 Alp TrA
1.9100
 4250.0
 82
 10850
 No
GOM_TRA_1PNPDE20040328_013151_000000752025_00275_10850_0025.N1
 28-MAR-2004 01:31:51
 Dark
 75.000
 75
 26Eps Sco
2.2910
 4250.0
 150
 10850
 No
GOM_TRA_1PNPDE20040328_013432_000000462025_00275_10850_0026.N1
 28-MAR-2004 01:34:32
 Dark
 45.500
 4
 Alp1Cen
-0.010000
 5800.0
 91
 10850
 No
GOM_TRA_1PNPDE20040328_013659_000000452025_00275_10850_0027.N1
 28-MAR-2004 01:36:59
 Dark
 44.500
 12
 Alp1Cru
0.77500
 30000.
 89
 10850
 No
GOM_TRA_1PNPDE20040328_013825_000000472025_00275_10850_0028.N1
 28-MAR-2004 01:38:25
 Dark
 46.500
 26
 Gam Cru
1.6240
 2900.0
 93
 10850
 No
GOM_TRA_1PNPDE20040328_014017_000000472025_00275_10850_0029.N1
 28-MAR-2004 01:40:17
 Dark
 47.000
 64
 Gam Cen
2.2000
 10600.
 94
 10850
 No
GOM_TRA_1PNPDE20040328_014309_000001832025_00275_10850_0030.N1
 28-MAR-2004 01:43:09
 Dark
 182.50
 97
 8Bet1Sco
2.5610
 30000.
 365
 10850
 No
GOM_TRA_1PNPDE20040328_014751_000000512025_00275_10850_0000.N1
 28-MAR-2004 01:47:51
 Dark
 50.500
 106
 9Bet Crv
2.6480
 5600.0
 101
 10850
 No
GOM_TRA_1PNPDE20040328_014953_000000462025_00275_10850_0001.N1
 28-MAR-2004 01:49:53
 Dark
 46.000
 100
 4Gam Crv
2.5800
 13100.
 92
 10850
 No
GOM_TRA_1PNPDE20040328_015152_000000652025_00275_10850_0002.N1
 28-MAR-2004 01:51:52
 Dark
 64.500
 15
 67Alp Vir
0.97600
 28000.
 129
 10850
 No
GOM_TRA_1PNPDE20040328_015512_000000482025_00275_10850_0003.N1
 28-MAR-2004 01:55:12
 Bright
 48.000
 121
 29Gam Vir
2.7400
 7200.0
 96
 10850
 No
GOM_TRA_1PNPDE20040328_015913_000000402025_00275_10850_0004.N1
 28-MAR-2004 01:59:13
 Bright
 39.500
 22
 32Alp Leo
1.3600
 15200.
 79
 10850
 No
GOM_TRA_1PNPDE20040328_020121_000000392025_00275_10850_0005.N1
 28-MAR-2004 02:01:21
 Bright
 39.000
 96
 68Del Leo
2.5600
 9300.0
 78
 10850
 No
GOM_TRA_1PNPDE20040328_020245_000000402025_00275_10850_0006.N1
 28-MAR-2004 02:02:45
 Bright
 39.500
 166
 17Eps Leo
2.9800
 6000.0
 79
 10850
 No
GOM_TRA_1PNPDE20040328_020814_000000382025_00275_10850_0007.N1
 28-MAR-2004 02:08:14
 Bright
 37.500
 174
 52Psi UMa
3.0040
 4400.0
 75
 10850
 No
GOM_TRA_1PNPDE20040328_021133_000000392025_00275_10850_0008.N1
 28-MAR-2004 02:11:33
 Bright
 38.500
 82
 48Bet UMa
2.3650
 10600.
 77
 10850
 No
GOM_TRA_1PNPDE20040328_021304_000000402025_00275_10850_0009.N1
 28-MAR-2004 02:13:04
 Bright
 39.500
 36
 50Alp UMa
1.8000
 6300.0
 79
 10850
 No
GOM_TRA_1PNPDE20040328_021539_000000702025_00275_10850_0010.N1
 28-MAR-2004 02:15:39
 Bright
 70.000
 180
 27Gam Boo
3.0400
 8000.0
 140
 10850
 No
GOM_TRA_1PNPDE20040328_022250_000000482025_00275_10850_0011.N1
 28-MAR-2004 02:22:50
 Bright
 48.000
 119
 14Eta Dra
2.7270
 4700.0
 96
 10850
 No
GOM_TRA_1PNPDE20040328_022723_000000392025_00275_10850_0012.N1
 28-MAR-2004 02:27:23
 Bright
 39.000
 76
 27Gam Cas
2.3000
 30000.
 78
 10850
 No
GOM_TRA_1PNPDE20040328_022835_000000392025_00275_10850_0013.N1
 28-MAR-2004 02:28:35
 Bright
 39.000
 74
 11Bet Cas
2.2680
 6600.0
 78
 10850
 No
GOM_TRA_1PNPDE20040328_023349_000000462025_00275_10850_0014.N1
 28-MAR-2004 02:33:49
 Bright
 45.500
 144
 18Del Cyg
2.8600
 11000.
 91
 10850
 No
GOM_TRA_1PNPDE20040328_023532_000000472025_00275_10850_0015.N1
 28-MAR-2004 02:35:32
 Bright
 47.000
 66
 37Gam Cyg
2.2080
 5900.0
 94
 10850
 No
GOM_TRA_1PNPDE20040328_023731_000000422025_00275_10850_0016.N1
 28-MAR-2004 02:37:31
 Bright
 41.500
 92
 53Eps Cyg
2.5000
 4500.0
 83
 10850
 No
GOM_TRA_1PNPDE20040328_024356_000000422025_00275_10850_0017.N1
 28-MAR-2004 02:43:56
 Bright
 41.500
 61
 8Eps Peg
2.1000
 3900.0
 83
 10850
 No
GOM_TRA_1PNPDE20040328_024705_000000662025_00275_10850_0018.N1
 28-MAR-2004 02:47:05
 Dark
 66.000
 11
 53Alp Aql
0.76500
 8000.0
 132
 10850
 No
GOM_TRA_1PNPDE20040328_025105_000000422025_00275_10850_0019.N1
 28-MAR-2004 02:51:05
 Dark
 42.000
 142
 49Del Cap
2.8500
 8900.0
 84
 10850
 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:
4.00000 %
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:
13.769
 20.093
St. deviation:
2.6899
 2.4914
Maximum:
19.661
 24.874
Minimum:
8.7919
 11.384
Number of data:
19.000
 31.000

 

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:
1462.5
 1448.7
 1461.3
 1447.7
St. deviation:
4.8833
 7.1052
 7.7890
 10.272
Maximum:
1499.0
 1497.0
 1512.0
 1512.0
Minimum:
1427.0
 1411.0
 1450.0
 1420.0
Number of data:
27250.
 27250.
 35700.
 35700.

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