GOMOS Daily Report 17-FEB-2012


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
27FEB2012 12:10:07
Data source version
GOMOS/6.01
Start time of products
17FEB2012 01:41:52
Stop time of products
17FEB2012 23:27:48
Store outputs in DB
Yes
Nb of level 1b prods
41
Nb of prods with errors
0

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)

No missing products.

2.4 Summary of processed GOM_TRA_1P products

!Warning: No products without errors in BRIGHT limb contitions found
Nr Filename UTC Start time Limb Duration Star Id Star Name Star Mag Star Temp Nb Meas Orbit Prod. error
1
GOM_TRA_1PNPDE20120217_014152_000000463111_00391_52129_8853.N1
17-FEB-2012 01:41:52
Dark
46.000
10
Bet Cen
0.61000
28000.
92
52129
No
2
GOM_TRA_1PNPDE20120217_014439_000000423111_00391_52129_8854.N1
17-FEB-2012 01:44:39
Dark
42.000
20
Bet Cru
1.2530
30000.
84
52129
No
3
GOM_TRA_1PNPDE20120217_031011_000000423111_00391_52129_8855.N1
17-FEB-2012 03:10:11
Dark
42.000
25
35Lam Sco
1.6200
28000.
84
52129
No
4
GOM_TRA_1PNPDE20120217_032206_000000433111_00392_52130_8856.N1
17-FEB-2012 03:22:06
Dark
43.000
10
Bet Cen
0.61000
28000.
86
52130
No
5
GOM_TRA_1PNPDE20120217_032454_000000413111_00392_52130_8857.N1
17-FEB-2012 03:24:54
Dark
41.000
20
Bet Cru
1.2530
30000.
82
52130
No
6
GOM_TRA_1PNPDE20120217_045025_000000423111_00392_52130_8903.N1
17-FEB-2012 04:50:25
Dark
41.500
25
35Lam Sco
1.6200
28000.
83
52130
No
7
GOM_TRA_1PNPDE20120217_050221_000000443111_00393_52131_8904.N1
17-FEB-2012 05:02:21
Dark
44.000
10
Bet Cen
0.61000
28000.
88
52131
No
8
GOM_TRA_1PNPDE20120217_050508_000000413111_00393_52131_8905.N1
17-FEB-2012 05:05:08
Dark
40.500
20
Bet Cru
1.2530
30000.
81
52131
No
9
GOM_TRA_1PNPDE20120217_063040_000000443111_00393_52131_8953.N1
17-FEB-2012 06:30:40
Dark
44.000
25
35Lam Sco
1.6200
28000.
88
52131
No
10
GOM_TRA_1PNPDE20120217_064235_000000473111_00394_52132_8954.N1
17-FEB-2012 06:42:35
Dark
47.000
10
Bet Cen
0.61000
28000.
94
52132
No
11
GOM_TRA_1PNPDE20120217_064523_000000443111_00394_52132_8955.N1
17-FEB-2012 06:45:23
Dark
44.000
20
Bet Cru
1.2530
30000.
88
52132
No
12
GOM_TRA_1PNPDK20120217_081055_000000463111_00394_52132_3392.N1
17-FEB-2012 08:10:55
Dark
46.000
25
35Lam Sco
1.6200
28000.
92
52132
No
13
GOM_TRA_1PNPDK20120217_082250_000000443111_00395_52133_3393.N1
17-FEB-2012 08:22:50
Dark
43.500
10
Bet Cen
0.61000
28000.
87
52133
No
14
GOM_TRA_1PNPDK20120217_082537_000000493111_00395_52133_3394.N1
17-FEB-2012 08:25:37
Dark
49.000
20
Bet Cru
1.2530
30000.
98
52133
No
15
GOM_TRA_1PNPDK20120217_095109_000000503111_00395_52133_3427.N1
17-FEB-2012 09:51:09
Dark
49.500
25
35Lam Sco
1.6200
28000.
99
52133
No
16
GOM_TRA_1PNPDK20120217_100304_000000513111_00396_52134_3428.N1
17-FEB-2012 10:03:04
Dark
50.500
10
Bet Cen
0.61000
28000.
101
52134
No
17
GOM_TRA_1PNPDK20120217_100552_000000413111_00396_52134_3429.N1
17-FEB-2012 10:05:52
Dark
41.000
20
Bet Cru
1.2530
30000.
82
52134
No
18
GOM_TRA_1PNPDK20120217_113124_000000423111_00396_52134_3465.N1
17-FEB-2012 11:31:24
Dark
41.500
25
35Lam Sco
1.6200
28000.
83
52134
No
19
GOM_TRA_1PNPDK20120217_114319_000000433111_00397_52135_3466.N1
17-FEB-2012 11:43:19
Dark
43.000
10
Bet Cen
0.61000
28000.
86
52135
No
20
GOM_TRA_1PNPDK20120217_114606_000000403111_00397_52135_3467.N1
17-FEB-2012 11:46:06
Dark
40.000
20
Bet Cru
1.2530
30000.
80
52135
No
21
GOM_TRA_1PNPDK20120217_131138_000000463111_00397_52135_3507.N1
17-FEB-2012 13:11:38
Dark
45.500
25
35Lam Sco
1.6200
28000.
91
52135
No
22
GOM_TRA_1PNPDK20120217_132333_000000433111_00398_52136_3508.N1
17-FEB-2012 13:23:33
Dark
42.500
10
Bet Cen
0.61000
28000.
85
52136
No
23
GOM_TRA_1PNPDK20120217_132621_000000453111_00398_52136_3509.N1
17-FEB-2012 13:26:21
Dark
44.500
20
Bet Cru
1.2530
30000.
89
52136
No
24
GOM_TRA_1PNPDK20120217_145153_000000463111_00398_52136_3545.N1
17-FEB-2012 14:51:53
Dark
45.500
25
35Lam Sco
1.6200
28000.
91
52136
No
25
GOM_TRA_1PNPDK20120217_150348_000000423111_00399_52137_3546.N1
17-FEB-2012 15:03:48
Dark
42.000
10
Bet Cen
0.61000
28000.
84
52137
No
26
GOM_TRA_1PNPDK20120217_150635_000000423111_00399_52137_3547.N1
17-FEB-2012 15:06:35
Dark
42.000
20
Bet Cru
1.2530
30000.
84
52137
No
27
GOM_TRA_1PNPDK20120217_163207_000000423111_00399_52137_3575.N1
17-FEB-2012 16:32:07
Dark
42.000
25
35Lam Sco
1.6200
28000.
84
52137
No
28
GOM_TRA_1PNPDK20120217_164402_000000423111_00400_52138_3576.N1
17-FEB-2012 16:44:02
Dark
41.500
10
Bet Cen
0.61000
28000.
83
52138
No
29
GOM_TRA_1PNPDK20120217_164650_000000483111_00400_52138_3577.N1
17-FEB-2012 16:46:50
Dark
47.500
20
Bet Cru
1.2530
30000.
95
52138
No
30
GOM_TRA_1PNPDK20120217_181222_000000433111_00400_52138_3608.N1
17-FEB-2012 18:12:22
Dark
43.000
25
35Lam Sco
1.6200
28000.
86
52138
No
31
GOM_TRA_1PNPDK20120217_182417_000000483111_00401_52139_3609.N1
17-FEB-2012 18:24:17
Dark
48.000
10
Bet Cen
0.61000
28000.
96
52139
No
32
GOM_TRA_1PNPDK20120217_182704_000000413111_00401_52139_3610.N1
17-FEB-2012 18:27:04
Dark
40.500
20
Bet Cru
1.2530
30000.
81
52139
No
33
GOM_TRA_1PNPDK20120217_195237_000000413111_00401_52139_3638.N1
17-FEB-2012 19:52:37
Dark
41.000
25
35Lam Sco
1.6200
28000.
82
52139
No
34
GOM_TRA_1PNPDK20120217_200432_000000473111_00402_52140_3639.N1
17-FEB-2012 20:04:32
Dark
47.000
10
Bet Cen
0.61000
28000.
94
52140
No
35
GOM_TRA_1PNPDK20120217_200719_000000443111_00402_52140_3640.N1
17-FEB-2012 20:07:19
Dark
44.000
20
Bet Cru
1.2530
30000.
88
52140
No
36
GOM_TRA_1PNPDE20120217_213251_000000423111_00402_52140_9197.N1
17-FEB-2012 21:32:51
Dark
41.500
25
35Lam Sco
1.6200
28000.
83
52140
No
37
GOM_TRA_1PNPDE20120217_214446_000000423111_00403_52141_9198.N1
17-FEB-2012 21:44:46
Dark
42.000
10
Bet Cen
0.61000
28000.
84
52141
No
38
GOM_TRA_1PNPDE20120217_214733_000000433111_00403_52141_9199.N1
17-FEB-2012 21:47:33
Dark
43.000
20
Bet Cru
1.2530
30000.
86
52141
No
39
GOM_TRA_1PNPDE20120217_231306_000000383111_00403_52141_9226.N1
17-FEB-2012 23:13:06
Dark
38.000
25
35Lam Sco
1.6200
28000.
76
52141
No
40
GOM_TRA_1PNPDE20120217_232501_000000443111_00404_52142_9227.N1
17-FEB-2012 23:25:01
Dark
43.500
10
Bet Cen
0.61000
28000.
87
52142
No
41
GOM_TRA_1PNPDE20120217_232748_000000423111_00404_52142_9228.N1
17-FEB-2012 23:27:48
Dark
41.500
20
Bet Cru
1.2530
30000.
83
52142
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_1PNPDE20120217_014152_000000463111_00391_52129_8853.N1
DC map used
GOM_TRA_1PNPDE20120217_014439_000000423111_00391_52129_8854.N1
DC map used
GOM_TRA_1PNPDE20120217_031011_000000423111_00391_52129_8855.N1
DC map used
GOM_TRA_1PNPDE20120217_032206_000000433111_00392_52130_8856.N1
DC map used
GOM_TRA_1PNPDE20120217_032454_000000413111_00392_52130_8857.N1
DC map used
GOM_TRA_1PNPDE20120217_045025_000000423111_00392_52130_8903.N1
DC map used
GOM_TRA_1PNPDE20120217_050221_000000443111_00393_52131_8904.N1
DC map used
GOM_TRA_1PNPDE20120217_050508_000000413111_00393_52131_8905.N1
DC map used
GOM_TRA_1PNPDE20120217_063040_000000443111_00393_52131_8953.N1
DC map used
GOM_TRA_1PNPDE20120217_064235_000000473111_00394_52132_8954.N1
DC map used
GOM_TRA_1PNPDE20120217_064523_000000443111_00394_52132_8955.N1
DC map used
GOM_TRA_1PNPDK20120217_081055_000000463111_00394_52132_3392.N1
DC map used
GOM_TRA_1PNPDK20120217_082250_000000443111_00395_52133_3393.N1
DC map used
GOM_TRA_1PNPDK20120217_082537_000000493111_00395_52133_3394.N1
DC map used
GOM_TRA_1PNPDK20120217_095109_000000503111_00395_52133_3427.N1
DC map used
GOM_TRA_1PNPDK20120217_100304_000000513111_00396_52134_3428.N1
DC map used
GOM_TRA_1PNPDK20120217_100552_000000413111_00396_52134_3429.N1
DC map used
GOM_TRA_1PNPDK20120217_113124_000000423111_00396_52134_3465.N1
DC map used
GOM_TRA_1PNPDK20120217_114319_000000433111_00397_52135_3466.N1
DC map used
GOM_TRA_1PNPDK20120217_114606_000000403111_00397_52135_3467.N1
DC map used
GOM_TRA_1PNPDK20120217_131138_000000463111_00397_52135_3507.N1
DC map used
GOM_TRA_1PNPDK20120217_132333_000000433111_00398_52136_3508.N1
DC map used
GOM_TRA_1PNPDK20120217_132621_000000453111_00398_52136_3509.N1
DC map used
GOM_TRA_1PNPDK20120217_145153_000000463111_00398_52136_3545.N1
DC map used
GOM_TRA_1PNPDK20120217_150348_000000423111_00399_52137_3546.N1
DC map used
GOM_TRA_1PNPDK20120217_150635_000000423111_00399_52137_3547.N1
DC map used
GOM_TRA_1PNPDK20120217_163207_000000423111_00399_52137_3575.N1
DC map used
GOM_TRA_1PNPDK20120217_164402_000000423111_00400_52138_3576.N1
DC map used
GOM_TRA_1PNPDK20120217_164650_000000483111_00400_52138_3577.N1
DC map used
GOM_TRA_1PNPDK20120217_181222_000000433111_00400_52138_3608.N1
DC map used
GOM_TRA_1PNPDK20120217_182417_000000483111_00401_52139_3609.N1
DC map used
GOM_TRA_1PNPDK20120217_182704_000000413111_00401_52139_3610.N1
DC map used
GOM_TRA_1PNPDK20120217_195237_000000413111_00401_52139_3638.N1
DC map used
GOM_TRA_1PNPDK20120217_200432_000000473111_00402_52140_3639.N1
DC map used
GOM_TRA_1PNPDK20120217_200719_000000443111_00402_52140_3640.N1
DC map used
GOM_TRA_1PNPDE20120217_213251_000000423111_00402_52140_9197.N1
DC map used
GOM_TRA_1PNPDE20120217_214446_000000423111_00403_52141_9198.N1
DC map used
GOM_TRA_1PNPDE20120217_214733_000000433111_00403_52141_9199.N1
DC map used
GOM_TRA_1PNPDE20120217_231306_000000383111_00403_52141_9226.N1
DC map used
GOM_TRA_1PNPDE20120217_232501_000000443111_00404_52142_9227.N1
DC map used
GOM_TRA_1PNPDE20120217_232748_000000423111_00404_52142_9228.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:
85.3659 %
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:
16.039
NaN
NaN
St. deviation:
3.3894
NaN
NaN
Maximum:
24.065
NaN
NaN
Minimum:
8.2681
NaN
NaN
Number of data:
41.000
NaN
NaN

 

6.2 Plot for DARK 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:
0.17793
-0.23454
NaN
NaN
St. deviation:
0.37481
0.75375
NaN
NaN
Maximum:
2.5000
6.4000
NaN
NaN
Minimum:
-2.2000
-3.6000
NaN
NaN
Number of data:
39300.
39300.
NaN
NaN
90Percentile:
0.70000
0.70000
NaN
NaN

 

7.2.2 Trend of daily SATU NEA St. deviation since 1st April 2006 (dark limb) and of daily SATU NEA 90th percentile since May 2011

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



Lower curve: 90th percentile of SATU Y axis
Upper curve: 90th percentile 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_AXVIEC20111213_163131_20111215_000000_20500101_000000
1
17-FEB-2012 01:41:52
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20120130_103112_20120125_000000_20500101_000000
1
17-FEB-2012 01:41:52
LEVEL-1B_PROC_CONFIG
GOM_PR1_AXVIEC20110513_081743_20020301_000000_20500101_000000
1
17-FEB-2012 01:41:52
STAR_CATALOGUE
GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000
1
17-FEB-2012 01:41:52
STELLAR_SPECTRA_DATABANK
GOM_STS_AXVIEC20091111_151504_20020101_160000_20500101_000000
1
17-FEB-2012 01:41:52
ECMWF_FILE
AUX_ECF_AXNECM20120216_062116_20120216_210000_20120217_090000
1
17-FEB-2012 01:41:52
ECMWF_FILE
AUX_ECF_AXNECM20120216_182116_20120217_030000_20120217_150000
6
17-FEB-2012 04:50:25
ECMWF_FILE
AUX_ECA_AXNECM20120217_060129_20120216_210000_20120217_090000
9
17-FEB-2012 06:30:40
ECMWF_FILE
AUX_ECF_AXNECM20120217_060129_20120217_090000_20120217_210000
15
17-FEB-2012 09:51:09
ECMWF_FILE
AUX_ECF_AXNECM20120217_060130_20120217_150000_20120218_030000
27
17-FEB-2012 16:32:07
ECMWF_FILE
AUX_ECA_AXNECM20120217_180854_20120217_090000_20120217_210000
33
17-FEB-2012 19:52:37
ECMWF_FILE
AUX_ECF_AXNECM20120217_064853_20120217_210000_20120218_090000
36
17-FEB-2012 21:32:51
OPTIONAL_ECMWF_FILE
MISSING
1
17-FEB-2012 01:41:52
ORBIT_DATA_FILE
AUX_FPO_AXVPDS20120215_232113_20120215_193050_20120225_200414
1
17-FEB-2012 01:41:52
ORBIT_DATA_FILE
AUX_FPO_AXVPDS20120217_112854_20120216_185405_20120226_210742
18
17-FEB-2012 11:31:24
ORBIT_DATA_FILE
AUX_FPO_AXVPDS20120217_233138_20120217_195734_20120227_203057
39
17-FEB-2012 23:13:06