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GOMOS Daily Report 02-SEP-2004

GOMOS Daily Report 02-SEP-2004


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 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 (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.Statistics on SATU Noise Equivalent Angle

 


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
 07SEP2004 05:12:36
Data source version
 GOMOS/4.02
Start time of products
 QDS_TODAY(/START)-5D (02SEP2004 00:00:00)
Stop time of products
 QDS_TODAY(/STOP)-5D (03SEP2004 00:00:00)
Store outputs flag
 1
Nb of level 1b prods
 27
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 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_1PNPDE20040902_204110_000000462030_00043_13123_0000.N1
 02-SEP-2004 20:41:10
 Twilight
 46.000
 84
 Alp Phe
2.3970
 4500.0
 92
 13123
 No
GOM_TRA_1PNPDE20040902_204303_000000392030_00043_13123_0001.N1
 02-SEP-2004 20:43:03
 Twilight
 39.000
 31
 Alp Gru
1.7340
 15200.
 78
 13123
 No
GOM_TRA_1PNPDE20040902_204708_000000522030_00043_13123_0002.N1
 02-SEP-2004 20:47:08
 Bright
 51.500
 18
 24Alp PsA
1.1660
 9700.0
 103
 13123
 No
GOM_TRA_1PNPDE20040902_204947_000000822030_00043_13123_0003.N1
 02-SEP-2004 20:49:47
 Bright
 81.500
 52
 16Bet Cet
2.0370
 4500.0
 163
 13123
 No
GOM_TRA_1PNPDE20040902_205501_000000382030_00043_13123_0004.N1
 02-SEP-2004 20:55:01
 Bright
 38.000
 154
 22Bet Aqr
2.8990
 5700.0
 76
 13123
 No
GOM_TRA_1PNPDE20040902_205626_000000392030_00043_13123_0005.N1
 02-SEP-2004 20:56:26
 Bright
 39.000
 162
 34Alp Aqr
2.9440
 5350.0
 78
 13123
 No
GOM_TRA_1PNPDE20040902_205925_000000382030_00043_13123_0006.N1
 02-SEP-2004 20:59:25
 Bright
 37.500
 61
 8Eps Peg
2.1000
 3900.0
 75
 13123
 No
GOM_TRA_1PNPDE20040902_210205_000000452030_00043_13123_0007.N1
 02-SEP-2004 21:02:05
 Bright
 45.000
 90
 54Alp Peg
2.4870
 11000.
 90
 13123
 No
GOM_TRA_1PNPDE20040902_210620_000000382030_00043_13123_0008.N1
 02-SEP-2004 21:06:20
 Bright
 37.500
 92
 53Eps Cyg
2.5000
 4500.0
 75
 13123
 No
GOM_TRA_1PNPDE20040902_210815_000000342030_00043_13123_0009.N1
 02-SEP-2004 21:08:15
 Bright
 34.000
 66
 37Gam Cyg
2.2080
 5900.0
 68
 13123
 No
GOM_TRA_1PNPDE20040902_210931_000000352030_00043_13123_0010.N1
 02-SEP-2004 21:09:31
 Bright
 34.500
 19
 50Alp Cyg
1.2460
 10500.
 69
 13123
 No
GOM_TRA_1PNPDE20040902_211424_000000372030_00043_13123_0011.N1
 02-SEP-2004 21:14:24
 Bright
 37.000
 89
 5Alp Cep
2.4510
 8000.0
 74
 13123
 No
GOM_TRA_1PNPDE20040902_211655_000000442030_00043_13123_0012.N1
 02-SEP-2004 21:16:55
 Bright
 43.500
 74
 11Bet Cas
2.2680
 6600.0
 87
 13123
 No
GOM_TRA_1PNPDE20040902_211901_000000462030_00043_13123_0013.N1
 02-SEP-2004 21:19:01
 Bright
 46.000
 76
 27Gam Cas
2.3000
 30000.
 92
 13123
 No
GOM_TRA_1PNPDE20040902_212205_000000382030_00043_13123_0014.N1
 02-SEP-2004 21:22:05
 Bright
 37.500
 49
 1Alp UMi
1.9900
 6300.0
 75
 13123
 No
GOM_TRA_1PNPDE20040902_212359_000000932030_00043_13123_0015.N1
 02-SEP-2004 21:23:59
 Bright
 93.000
 73
 57Gam1And
2.2600
 13100.
 186
 13123
 No
GOM_TRA_1PNPDE20040902_212838_000000362030_00043_13123_0016.N1
 02-SEP-2004 21:28:38
 Bright
 35.500
 36
 50Alp UMa
1.8000
 6300.0
 71
 13123
 No
GOM_TRA_1PNPDE20040902_213000_000000342030_00043_13123_0017.N1
 02-SEP-2004 21:30:00
 Bright
 34.000
 82
 48Bet UMa
2.3650
 10600.
 68
 13123
 No
GOM_TRA_1PNPDE20040902_213358_000000602030_00043_13123_0018.N1
 02-SEP-2004 21:33:58
 Bright
 60.000
 6
 13Alp Aur
0.080000
 3400.0
 120
 13123
 No
GOM_TRA_1PNPDE20040902_213749_000000502030_00043_13123_0019.N1
 02-SEP-2004 21:37:49
 Bright
 49.500
 107
 37The Aur
2.6490
 11000.
 99
 13123
 No
GOM_TRA_1PNPDE20040902_214011_000000412030_00043_13123_0020.N1
 02-SEP-2004 21:40:11
 Twilight
 40.500
 17
 78Bet Gem
1.1610
 4500.0
 81
 13123
 No
GOM_TRA_1PNPDE20040902_214946_000000782030_00043_13123_0000.N1
 02-SEP-2004 21:49:46
 Dark
 78.000
 14
 58Alp Ori
0.87000
 3000.0
 156
 13123
 Yes
GOM_TRA_1PNPDE20040902_215217_000000872030_00043_13123_0001.N1
 02-SEP-2004 21:52:17
 Dark
 86.500
 27
 24Gam Ori
1.6360
 26000.
 173
 13123
 No
GOM_TRA_1PNPDE20040902_215445_000000532030_00043_13123_0002.N1
 02-SEP-2004 21:54:45
 Dark
 52.500
 1
 9Alp CMa
-1.4400
 11000.
 105
 13123
 No
GOM_TRA_1PNPDE20040902_220042_000000392030_00043_13123_0003.N1
 02-SEP-2004 22:00:42
 Dark
 38.500
 34
 Gam2Vel
1.7930
 23000.
 77
 13123
 No
GOM_TRA_1PNPDE20040902_220212_000000472030_00043_13123_0004.N1
 02-SEP-2004 22:02:12
 Dark
 47.000
 108
 Alp Col
2.6520
 15200.
 94
 13123
 No
GOM_TRA_1PNPDE20040902_220409_000000542030_00043_13123_0005.N1
 02-SEP-2004 22:04:09
 Dark
 53.500
 2
 Alp Car
-0.73600
 7000.0
 107
 13123
 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_1PNPDE20040902_204110_000000462030_00043_13123_0000.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_204303_000000392030_00043_13123_0001.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_204708_000000522030_00043_13123_0002.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_204947_000000822030_00043_13123_0003.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_205501_000000382030_00043_13123_0004.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_205626_000000392030_00043_13123_0005.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_205925_000000382030_00043_13123_0006.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_210205_000000452030_00043_13123_0007.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_210620_000000382030_00043_13123_0008.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_210815_000000342030_00043_13123_0009.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_210931_000000352030_00043_13123_0010.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_211424_000000372030_00043_13123_0011.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_211655_000000442030_00043_13123_0012.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_211901_000000462030_00043_13123_0013.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_212205_000000382030_00043_13123_0014.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_212359_000000932030_00043_13123_0015.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_212838_000000362030_00043_13123_0016.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_213000_000000342030_00043_13123_0017.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_213358_000000602030_00043_13123_0018.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_213749_000000502030_00043_13123_0019.N1
 DC map used (0)
GOM_TRA_1PNPDE20040902_214011_000000412030_00043_13123_0020.N1
 DC map used (0)

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:
15.3846 %
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:
12.468
 19.571
 17.517
St. deviation:
5.8708
 4.8091
 0.91043
Maximum:
18.904
 27.650
 18.524
Minimum:
3.9897
 8.4362
 16.752
Number of data:
5.0000
 18.000
 3.0000

 

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. 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:
1461.9
 1448.0
 1461.9
 1447.3
St. deviation:
4.5484
 5.5750
 5.8813
 6.9743
Maximum:
1491.0
 1489.0
 1508.0
 1495.0
Minimum:
1458.0
 1426.0
 1435.0
 1403.0
Number of data:
6250.0
 6250.0
 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