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GOMOS Daily Report 25-AUG-2006

GOMOS Daily Report 25-AUG-2006


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. 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 last two months

 
8.Auxiliary Data Files used for the production reported in section 2.2

 


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
27AUG2006 04:31:49
Data source version
GOMOS/5.00
Start time of products
QDS_YESTERDAY(/START)-1D (25AUG2006 00:00:00)
Stop time of products
QDS_YESTERDAY(/STOP)-1D (26AUG2006 00:00:00)
Store outputs in DB
Yes
Nb of level 1b prods
40
Nb of prods with errors
10

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

Nr Filename UTC Start time Limb Duration Star Id Star Name Star Mag Star Temp Nb Meas Orbit Prod. error
1
GOM_TRA_1PNPDE20060825_001422_000000422050_00345_23445_1046.N1
25-AUG-2006 00:14:22
Dark
42.000
1
9Alp CMa
-1.4400
11000.
84
23445
No
2
GOM_TRA_1PNPDE20060825_001549_000000342050_00345_23445_1047.N1
25-AUG-2006 00:15:49
Dark
33.500
179
24Omi2CMa
3.0320
24000.
67
23445
No
3
GOM_TRA_1PNPDE20060825_001717_000000392050_00345_23445_1048.N1
25-AUG-2006 00:17:17
Dark
39.000
23
21Eps CMa
1.5020
26000.
78
23445
No
4
GOM_TRA_1PNPDE20060825_001903_000000402050_00345_23445_1025.N1
25-AUG-2006 00:19:03
Dark
39.500
117
Pi Pup
2.7060
3800.0
79
23445
No
5
GOM_TRA_1PNPDE20060825_002406_000000402050_00345_23445_1050.N1
25-AUG-2006 00:24:06
Dark
40.000
2
Alp Car
-0.73600
7000.0
80
23445
No
6
GOM_TRA_1PNPDE20060825_015458_000000492050_00346_23446_1023.N1
25-AUG-2006 01:54:58
Dark
49.000
1
9Alp CMa
-1.4400
11000.
98
23446
No
7
GOM_TRA_1PNPDE20060825_015625_000000332050_00346_23446_1024.N1
25-AUG-2006 01:56:25
Dark
33.000
179
24Omi2CMa
3.0320
24000.
66
23446
No
8
GOM_TRA_1PNPDE20060825_015940_000000392050_00346_23446_1025.N1
25-AUG-2006 01:59:40
Dark
39.000
117
Pi Pup
2.7060
3800.0
78
23446
No
9
GOM_TRA_1PNPDE20060825_020442_000000472050_00346_23446_1026.N1
25-AUG-2006 02:04:42
Dark
47.000
2
Alp Car
-0.73600
7000.0
94
23446
No
10
GOM_TRA_1PNPDE20060825_021446_000000322050_00347_23447_1027.N1
25-AUG-2006 02:14:46
Dark
31.500
143
Alp Hyi
2.8570
7200.0
63
23447
No
11
GOM_TRA_1PNPDE20060825_021556_000000392050_00347_23447_1028.N1
25-AUG-2006 02:15:56
Dark
38.500
9
Alp Eri
0.45300
24000.
77
23447
No
12
GOM_TRA_1PNPDE20060825_022055_000000352050_00347_23447_1029.N1
25-AUG-2006 02:20:55
Straylight
35.000
148
Alp Tuc
2.8780
4100.0
70
23447
No
13
GOM_TRA_1PNPDE20060825_022432_000000352050_00347_23447_1030.N1
25-AUG-2006 02:24:32
Straylight
34.500
31
Alp Gru
1.7340
15200.
69
23447
No
14
GOM_TRA_1PNPDE20060825_022725_000000342050_00347_23447_1031.N1
25-AUG-2006 02:27:25
Straylight
34.000
172
Gam Gru
3.0030
13100.
68
23447
No
15
GOM_TRA_1PNPDE20060825_023342_000000382050_00347_23447_1032.N1
25-AUG-2006 02:33:42
Bright
37.500
142
49Del Cap
2.8500
8900.0
75
23447
No
16
GOM_TRA_1PNPDE20060825_023656_000000332050_00347_23447_1033.N1
25-AUG-2006 02:36:56
Bright
33.000
154
22Bet Aqr
2.8990
5700.0
66
23447
No
17
GOM_TRA_1PNPDE20060825_024823_000000292050_00347_23447_1034.N1
25-AUG-2006 02:48:23
Bright
29.000
92
53Eps Cyg
2.5000
4500.0
58
23447
Yes
18
GOM_TRA_1PNPDE20060825_025008_000000312050_00347_23447_1035.N1
25-AUG-2006 02:50:08
Bright
30.500
66
37Gam Cyg
2.2080
5900.0
61
23447
Yes
19
GOM_TRA_1PNPDE20060825_025134_000000322050_00347_23447_1036.N1
25-AUG-2006 02:51:34
Bright
32.000
19
50Alp Cyg
1.2460
10500.
64
23447
No
20
GOM_TRA_1PNPDE20060825_025645_000000302050_00347_23447_1037.N1
25-AUG-2006 02:56:45
Bright
30.000
89
5Alp Cep
2.4510
8000.0
60
23447
Yes
21
GOM_TRA_1PNPDE20060825_030412_000000282050_00347_23447_1038.N1
25-AUG-2006 03:04:12
Bright
28.000
49
1Alp UMi
1.9900
6300.0
56
23447
Yes
22
GOM_TRA_1PNPDE20060825_050129_000000312050_00348_23448_1027.N1
25-AUG-2006 05:01:29
Bright
30.500
24
66Alp Gem
1.5800
10200.
61
23448
No
23
GOM_TRA_1PNPDE20060825_050818_000000332050_00348_23448_1028.N1
25-AUG-2006 05:08:18
Twilight
33.000
153
3Bet CMi
2.8940
13100.
66
23448
No
24
GOM_TRA_1PNPDE20060825_051612_000000492050_00348_23448_1029.N1
25-AUG-2006 05:16:12
Dark
48.500
1
9Alp CMa
-1.4400
11000.
97
23448
No
25
GOM_TRA_1PNPDE20060825_051738_000000332050_00348_23448_1030.N1
25-AUG-2006 05:17:38
Dark
33.000
179
24Omi2CMa
3.0320
24000.
66
23448
No
26
GOM_TRA_1PNPDE20060825_051906_000000362050_00348_23448_1031.N1
25-AUG-2006 05:19:06
Dark
35.500
23
21Eps CMa
1.5020
26000.
71
23448
No
27
GOM_TRA_1PNPDE20060825_052052_000000362050_00348_23448_1032.N1
25-AUG-2006 05:20:52
Dark
35.500
117
Pi Pup
2.7060
3800.0
71
23448
No
28
GOM_TRA_1PNPDE20060825_052555_000000412050_00348_23448_1033.N1
25-AUG-2006 05:25:55
Dark
40.500
2
Alp Car
-0.73600
7000.0
81
23448
No
29
GOM_TRA_1PNPDE20060825_053559_000000342050_00349_23449_1034.N1
25-AUG-2006 05:35:59
Dark
34.000
143
Alp Hyi
2.8570
7200.0
68
23449
No
30
GOM_TRA_1PNPDE20060825_053709_000000392050_00349_23449_1035.N1
25-AUG-2006 05:37:09
Dark
38.500
9
Alp Eri
0.45300
24000.
77
23449
No
31
GOM_TRA_1PNPDE20060825_054207_000000342050_00349_23449_1036.N1
25-AUG-2006 05:42:07
Straylight
34.000
148
Alp Tuc
2.8780
4100.0
68
23449
No
32
GOM_TRA_1PNPDE20060825_054545_000000342050_00349_23449_1037.N1
25-AUG-2006 05:45:45
Straylight
34.000
31
Alp Gru
1.7340
15200.
68
23449
No
33
GOM_TRA_1PNPDE20060825_054838_000000352050_00349_23449_1038.N1
25-AUG-2006 05:48:38
Straylight
34.500
172
Gam Gru
3.0030
13100.
69
23449
No
34
GOM_TRA_1PNPDE20060825_055454_000000492050_00349_23449_1039.N1
25-AUG-2006 05:54:54
Bright
49.000
142
49Del Cap
2.8500
8900.0
98
23449
No
35
GOM_TRA_1PNPDE20060825_055809_000000332050_00349_23449_1040.N1
25-AUG-2006 05:58:09
Bright
33.000
154
22Bet Aqr
2.8990
5700.0
66
23449
Yes
36
GOM_TRA_1PNPDE20060825_060935_000000322050_00349_23449_1041.N1
25-AUG-2006 06:09:35
Bright
32.000
92
53Eps Cyg
2.5000
4500.0
64
23449
Yes
37
GOM_TRA_1PNPDE20060825_061120_000000332050_00349_23449_1042.N1
25-AUG-2006 06:11:20
Bright
32.500
66
37Gam Cyg
2.2080
5900.0
65
23449
Yes
38
GOM_TRA_1PNPDE20060825_061246_000000322050_00349_23449_1043.N1
25-AUG-2006 06:12:46
Bright
32.000
19
50Alp Cyg
1.2460
10500.
64
23449
Yes
39
GOM_TRA_1PNPDE20060825_061756_000000312050_00349_23449_1044.N1
25-AUG-2006 06:17:56
Bright
31.000
89
5Alp Cep
2.4510
8000.0
62
23449
Yes
40
GOM_TRA_1PNPDE20060825_062524_000000292050_00349_23449_1045.N1
25-AUG-2006 06:25:24
Bright
29.000
49
1Alp UMi
1.9900
6300.0
58
23449
Yes

 

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

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:
33.3333 %
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:
12.400
15.206
16.716
St. deviation:
5.4306
6.6868
0.0000
Maximum:
23.774
21.090
16.716
Minimum:
3.7320
4.3067
16.716
Number of data:
18.000
5.0000
1.0000

 

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:
0.0085020
-1.9782
0.12040
-2.0843
St. deviation:
0.47126
1.7368
0.64129
1.9380
Maximum:
3.6000
4.5000
3.2000
2.1000
Minimum:
-0.40000
-6.4000
-3.0000
-8.0000
Number of data:
5850.0
5850.0
1450.0
1450.0

 

7.2.2 Trend of daily SATU NEA St. deviation during the last two months (dark limb)

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

qds_image


 

8. Auxiliary Data Files used for the production reported in section 2.2

The number reported in the third column indicates since which file (see list in section 2.2) 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
25-AUG-2006 00:14:22
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20060825_091604_20060823_000000_20100101_000000
1
25-AUG-2006 00:14:22
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20060817_094138_20060816_000000_20100101_000000
4
25-AUG-2006 00:19:03
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20060825_091604_20060823_000000_20100101_000000
5
25-AUG-2006 00:24:06
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20060817_094138_20060816_000000_20100101_000000
6
25-AUG-2006 01:54:58
LEVEL-1B_PROC_CONFIG
GOM_PR1_AXNIEC20050627_151042_20020301_000000_20100101_000000
1
25-AUG-2006 00:14:22
STAR_CATALOGUE
GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000
1
25-AUG-2006 00:14:22
STELLAR_SPECTRA_DATABANK
GOM_STS_AXNIEC20040308_103538_20020101_160000_20100101_000000
1
25-AUG-2006 00:14:22
ECMWF_FILE
AUX_ECA_AXNECM20060825_061723_20060824_210000_20060825_090000
1
25-AUG-2006 00:14:22
ECMWF_FILE
AUX_ECF_AXNECM20060824_064717_20060824_210000_20060825_090000
4
25-AUG-2006 00:19:03
ECMWF_FILE
AUX_ECA_AXNECM20060825_061723_20060824_210000_20060825_090000
5
25-AUG-2006 00:24:06
ECMWF_FILE
AUX_ECF_AXNECM20060824_064717_20060824_210000_20060825_090000
6
25-AUG-2006 01:54:58
ECMWF_FILE
AUX_ECF_AXNECM20060824_181721_20060825_030000_20060825_150000
22
25-AUG-2006 05:01:29
OPTIONAL_ECMWF_FILE
MISSING
1
25-AUG-2006 00:14:22
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20060825_001131_000054192050_00345_23445_0419.N1
1
25-AUG-2006 00:14:22
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20060825_014710_000041442050_00346_23446_0420.N1
6
25-AUG-2006 01:54:58
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20060825_044748_000054192050_00348_23448_0422.N1
22
25-AUG-2006 05:01:29

Reports
Daily Report Level 2 Dataset IPF v6.01
Daily Reports of NRT data
Data Anomaly Reports
Instrument Anomaly Reports
Monthly Reports
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