GOMOS Daily Report 11-MAR-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
13MAR2012 07:00:49
Data source version
GOMOS/6.01
Start time of products
11MAR2012 00:22:45
Stop time of products
11MAR2012 23:11:54
Store outputs in DB
Yes
Nb of level 1b prods
35
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)

UTC start time Star name Star ID Orbit
11-MAR-2012 08:43:52
37GamCyg
66
52463
11-MAR-2012 09:15:06
BetAra
141
52464

2.4 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_1PNPDE20120311_002245_000000363112_00289_52458_7652.N1
11-MAR-2012 00:22:45
Bright
36.000
66
37Gam Cyg
2.2080
5900.0
72
52458
No
2
GOM_TRA_1PNPDE20120311_005356_000000423112_00290_52459_7682.N1
11-MAR-2012 00:53:56
Dark
41.500
141
Bet Ara
2.8400
4600.0
83
52459
No
3
GOM_TRA_1PNPDE20120311_020259_000000383112_00290_52459_7683.N1
11-MAR-2012 02:02:59
Bright
38.000
66
37Gam Cyg
2.2080
5900.0
76
52459
No
4
GOM_TRA_1PNPDE20120311_023411_000000443112_00291_52460_7710.N1
11-MAR-2012 02:34:11
Dark
44.000
141
Bet Ara
2.8400
4600.0
88
52460
No
5
GOM_TRA_1PNPDE20120311_034312_000000363112_00291_52460_7750.N1
11-MAR-2012 03:43:12
Bright
36.000
66
37Gam Cyg
2.2080
5900.0
72
52460
No
6
GOM_TRA_1PNPDE20120311_041426_000000513112_00292_52461_7751.N1
11-MAR-2012 04:14:26
Dark
50.500
141
Bet Ara
2.8400
4600.0
101
52461
No
7
GOM_TRA_1PNPDE20120311_052327_000000363112_00292_52461_7788.N1
11-MAR-2012 05:23:27
Bright
36.000
66
37Gam Cyg
2.2080
5900.0
72
52461
No
8
GOM_TRA_1PNPDE20120311_055440_000000453112_00293_52462_7789.N1
11-MAR-2012 05:54:40
Dark
44.500
141
Bet Ara
2.8400
4600.0
89
52462
No
9
GOM_TRA_1PNPDK20120311_070341_000000363112_00293_52462_2741.N1
11-MAR-2012 07:03:41
Bright
35.500
66
37Gam Cyg
2.2080
5900.0
71
52462
No
10
GOM_TRA_1PNPDK20120311_073455_000000443112_00294_52463_2742.N1
11-MAR-2012 07:34:55
Dark
44.000
141
Bet Ara
2.8400
4600.0
88
52463
No
11
GOM_TRA_1PNPDK20120311_084355_000000373112_00294_52463_2764.N1
11-MAR-2012 08:43:55
Bright
36.500
66
37Gam Cyg
2.2080
5900.0
73
52463
No
12
GOM_TRA_1PNPDK20120311_091510_000000443112_00295_52464_2765.N1
11-MAR-2012 09:15:10
Dark
44.000
141
Bet Ara
2.8400
4600.0
88
52464
No
13
GOM_TRA_1PNPDK20120311_102409_000000363112_00295_52464_2790.N1
11-MAR-2012 10:24:09
Bright
36.000
66
37Gam Cyg
2.2080
5900.0
72
52464
No
14
GOM_TRA_1PNPDK20120311_105524_000000423112_00296_52465_2791.N1
11-MAR-2012 10:55:24
Dark
41.500
141
Bet Ara
2.8400
4600.0
83
52465
No
15
GOM_TRA_1PNPDK20120311_113017_000000303112_00296_52465_2834.N1
11-MAR-2012 11:30:17
Bright
30.000
51
41Gam1Leo
2.0100
4500.0
60
52465
No
16
GOM_TRA_1PNPDK20120311_120423_000000393112_00296_52465_2835.N1
11-MAR-2012 12:04:23
Bright
39.000
66
37Gam Cyg
2.2080
5900.0
78
52465
No
17
GOM_TRA_1PNPDK20120311_123539_000000413112_00297_52466_2836.N1
11-MAR-2012 12:35:39
Dark
41.000
141
Bet Ara
2.8400
4600.0
82
52466
No
18
GOM_TRA_1PNPDK20120311_131031_000000363112_00297_52466_2867.N1
11-MAR-2012 13:10:31
Bright
36.000
51
41Gam1Leo
2.0100
4500.0
72
52466
No
19
GOM_TRA_1PNPDK20120311_134437_000000373112_00297_52466_2868.N1
11-MAR-2012 13:44:37
Bright
37.000
66
37Gam Cyg
2.2080
5900.0
74
52466
No
20
GOM_TRA_1PNPDK20120311_141553_000000413112_00298_52467_3109.N1
11-MAR-2012 14:15:53
Dark
41.000
141
Bet Ara
2.8400
4600.0
82
52467
No
21
GOM_TRA_1PNPDK20120311_145045_000000423112_00298_52467_3118.N1
11-MAR-2012 14:50:45
Bright
42.000
51
41Gam1Leo
2.0100
4500.0
84
52467
No
22
GOM_TRA_1PNPDK20120311_152451_000000373112_00298_52467_3119.N1
11-MAR-2012 15:24:51
Bright
36.500
66
37Gam Cyg
2.2080
5900.0
73
52467
No
23
GOM_TRA_1PNPDK20120311_155608_000000423112_00299_52468_3120.N1
11-MAR-2012 15:56:08
Dark
41.500
141
Bet Ara
2.8400
4600.0
83
52468
No
24
GOM_TRA_1PNPDK20120311_163059_000000393112_00299_52468_3081.N1
11-MAR-2012 16:30:59
Bright
38.500
51
41Gam1Leo
2.0100
4500.0
77
52468
No
25
GOM_TRA_1PNPDK20120311_170505_000000383112_00299_52468_3082.N1
11-MAR-2012 17:05:05
Bright
38.000
66
37Gam Cyg
2.2080
5900.0
76
52468
No
26
GOM_TRA_1PNPDK20120311_173622_000000443112_00300_52469_3083.N1
11-MAR-2012 17:36:22
Dark
43.500
141
Bet Ara
2.8400
4600.0
87
52469
No
27
GOM_TRA_1PNPDK20120311_181113_000000403112_00300_52469_3058.N1
11-MAR-2012 18:11:13
Bright
39.500
51
41Gam1Leo
2.0100
4500.0
79
52469
No
28
GOM_TRA_1PNPDK20120311_184519_000000393112_00300_52469_3059.N1
11-MAR-2012 18:45:19
Bright
38.500
66
37Gam Cyg
2.2080
5900.0
77
52469
No
29
GOM_TRA_1PNPDK20120311_191637_000000443112_00301_52470_3060.N1
11-MAR-2012 19:16:37
Dark
44.000
141
Bet Ara
2.8400
4600.0
88
52470
No
30
GOM_TRA_1PNPDK20120311_195127_000000393112_00301_52470_3008.N1
11-MAR-2012 19:51:27
Bright
39.000
51
41Gam1Leo
2.0100
4500.0
78
52470
No
31
GOM_TRA_1PNPDK20120311_202533_000000303112_00301_52470_3009.N1
11-MAR-2012 20:25:33
Bright
30.000
66
37Gam Cyg
2.2080
5900.0
60
52470
No
32
GOM_TRA_1PNPDK20120311_205651_000000423112_00302_52471_3010.N1
11-MAR-2012 20:56:51
Dark
42.000
141
Bet Ara
2.8400
4600.0
84
52471
No
33
GOM_TRA_1PNPDE20120311_213140_000000393112_00302_52471_7894.N1
11-MAR-2012 21:31:40
Bright
38.500
51
41Gam1Leo
2.0100
4500.0
77
52471
No
34
GOM_TRA_1PNPDE20120311_223706_000000523112_00303_52472_7916.N1
11-MAR-2012 22:37:06
Dark
51.500
141
Bet Ara
2.8400
4600.0
103
52472
No
35
GOM_TRA_1PNPDE20120311_231154_000000383112_00303_52472_7917.N1
11-MAR-2012 23:11:54
Bright
38.000
51
41Gam1Leo
2.0100
4500.0
76
52472
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_1PNPDE20120311_002245_000000363112_00289_52458_7652.N1
DC map used
GOM_TRA_1PNPDE20120311_005356_000000423112_00290_52459_7682.N1
DC map used
GOM_TRA_1PNPDE20120311_020259_000000383112_00290_52459_7683.N1
DC map used
GOM_TRA_1PNPDE20120311_023411_000000443112_00291_52460_7710.N1
DC map used
GOM_TRA_1PNPDE20120311_034312_000000363112_00291_52460_7750.N1
DC map used
GOM_TRA_1PNPDE20120311_041426_000000513112_00292_52461_7751.N1
DC map used
GOM_TRA_1PNPDE20120311_052327_000000363112_00292_52461_7788.N1
DC map used
GOM_TRA_1PNPDE20120311_055440_000000453112_00293_52462_7789.N1
DC map used
GOM_TRA_1PNPDK20120311_070341_000000363112_00293_52462_2741.N1
DC map used
GOM_TRA_1PNPDK20120311_073455_000000443112_00294_52463_2742.N1
DC map used
GOM_TRA_1PNPDK20120311_084355_000000373112_00294_52463_2764.N1
DC map used
GOM_TRA_1PNPDK20120311_091510_000000443112_00295_52464_2765.N1
DC map used
GOM_TRA_1PNPDK20120311_102409_000000363112_00295_52464_2790.N1
DC map used
GOM_TRA_1PNPDK20120311_105524_000000423112_00296_52465_2791.N1
DC map used
GOM_TRA_1PNPDK20120311_113017_000000303112_00296_52465_2834.N1
DC map used
GOM_TRA_1PNPDK20120311_120423_000000393112_00296_52465_2835.N1
DC map used
GOM_TRA_1PNPDK20120311_123539_000000413112_00297_52466_2836.N1
DC map used
GOM_TRA_1PNPDK20120311_131031_000000363112_00297_52466_2867.N1
DC map used
GOM_TRA_1PNPDK20120311_134437_000000373112_00297_52466_2868.N1
DC map used
GOM_TRA_1PNPDK20120311_141553_000000413112_00298_52467_3109.N1
DC map used
GOM_TRA_1PNPDK20120311_145045_000000423112_00298_52467_3118.N1
DC map used
GOM_TRA_1PNPDK20120311_152451_000000373112_00298_52467_3119.N1
DC map used
GOM_TRA_1PNPDK20120311_155608_000000423112_00299_52468_3120.N1
DC map used
GOM_TRA_1PNPDK20120311_163059_000000393112_00299_52468_3081.N1
DC map used
GOM_TRA_1PNPDK20120311_170505_000000383112_00299_52468_3082.N1
DC map used
GOM_TRA_1PNPDK20120311_173622_000000443112_00300_52469_3083.N1
DC map used
GOM_TRA_1PNPDK20120311_181113_000000403112_00300_52469_3058.N1
DC map used
GOM_TRA_1PNPDK20120311_184519_000000393112_00300_52469_3059.N1
DC map used
GOM_TRA_1PNPDK20120311_191637_000000443112_00301_52470_3060.N1
DC map used
GOM_TRA_1PNPDK20120311_195127_000000393112_00301_52470_3008.N1
DC map used
GOM_TRA_1PNPDK20120311_202533_000000303112_00301_52470_3009.N1
DC map used
GOM_TRA_1PNPDK20120311_205651_000000423112_00302_52471_3010.N1
DC map used
GOM_TRA_1PNPDE20120311_213140_000000393112_00302_52471_7894.N1
DC map used
GOM_TRA_1PNPDE20120311_223706_000000523112_00303_52472_7916.N1
DC map used
GOM_TRA_1PNPDE20120311_231154_000000383112_00303_52472_7917.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:
37.1429 %
Reference spectrum computed from DB:
0.00000 %
Reference spectrum with small number of measurements:
0.00000 %
SATU data not used:
60.0000 %

 

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:
16.016
23.158
NaN
St. deviation:
3.7951
6.7721
NaN
Maximum:
19.478
41.950
NaN
Minimum:
7.6433
13.765
NaN
Number of data:
14.000
21.000
NaN

 

6.2 Plot for DARK limb products

qds_image


 

6.3 Plot for BRIGHT 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:
0.12940
-0.21125
0.14546
-0.28909
St. deviation:
0.42956
0.60254
0.50143
0.69288
Maximum:
1.8000
3.1000
2.4000
4.2000
Minimum:
-1.5000
-4.3000
-2.3000
-5.4000
Number of data:
13900.
13900.
18750.
18750.
90Percentile:
0.70000
0.50000
0.80000
0.60000

 

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
11-MAR-2012 00:22:45
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20120307_084038_20120305_000000_20500101_000000
1
11-MAR-2012 00:22:45
LEVEL-1B_PROC_CONFIG
GOM_PR1_AXVIEC20110513_081743_20020301_000000_20500101_000000
1
11-MAR-2012 00:22:45
STAR_CATALOGUE
GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000
1
11-MAR-2012 00:22:45
STELLAR_SPECTRA_DATABANK
GOM_STS_AXVIEC20091111_151504_20020101_160000_20500101_000000
1
11-MAR-2012 00:22:45
ECMWF_FILE
AUX_ECF_AXNECM20120310_062114_20120310_210000_20120311_090000
1
11-MAR-2012 00:22:45
ECMWF_FILE
AUX_ECF_AXNECM20120310_183246_20120311_030000_20120311_150000
5
11-MAR-2012 03:43:12
ECMWF_FILE
AUX_ECA_AXNECM20120311_062113_20120310_210000_20120311_090000
7
11-MAR-2012 05:23:27
ECMWF_FILE
AUX_ECF_AXNECM20120310_183246_20120311_030000_20120311_150000
11
11-MAR-2012 08:43:55
ECMWF_FILE
AUX_ECF_AXNECM20120311_062113_20120311_090000_20120311_210000
13
11-MAR-2012 10:24:09
ECMWF_FILE
AUX_ECA_AXNECM20120311_182116_20120311_090000_20120311_210000
20
11-MAR-2012 14:15:53
ECMWF_FILE
AUX_ECF_AXNECM20120311_062114_20120311_210000_20120312_090000
33
11-MAR-2012 21:31:40
OPTIONAL_ECMWF_FILE
MISSING
1
11-MAR-2012 00:22:45
ORBIT_DATA_FILE
AUX_FPO_AXVPDS20120308_232629_20120308_192413_20120318_213752
1
11-MAR-2012 00:22:45