GOMOS Daily Report 16-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 12:10:26
Data source version
GOMOS/6.01
Start time of products
16FEB2012 00:38:14
Stop time of products
16FEB2012 22:24:10
Store outputs in DB
Yes
Nb of level 1b prods
39
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
16-FEB-2012 07:07:18
35LamSco
25
52131
16-FEB-2012 08:47:32
35LamSco
25
52132
16-FEB-2012 10:27:47
35LamSco
25
52133
16-FEB-2012 10:48:24
MuVel
113
52133
16-FEB-2012 12:08:01
35LamSco
25
52134
16-FEB-2012 12:28:39
MuVel
113
52134
16-FEB-2012 13:48:16
35LamSco
25
52135
16-FEB-2012 14:08:53
MuVel
113
52135
16-FEB-2012 15:28:30
35LamSco
25
52136
16-FEB-2012 15:49:07
MuVel
113
52136
16-FEB-2012 17:08:45
35LamSco
25
52137
16-FEB-2012 17:18:45
Alp1Cen
0
52137
16-FEB-2012 17:22:52
BetCru
0
52137
16-FEB-2012 17:28:46
MuVel
0
52137
16-FEB-2012 17:29:22
MuVel
113
52137
16-FEB-2012 18:48:23
35LamSco
0
52138
16-FEB-2012 18:48:59
35LamSco
25
52138
16-FEB-2012 18:58:59
Alp1Cen
0
52138
16-FEB-2012 19:03:06
BetCru
0
52138
16-FEB-2012 19:09:00
MuVel
0
52138
16-FEB-2012 19:09:36
MuVel
113
52138
16-FEB-2012 20:28:38
35LamSco
0
52139
16-FEB-2012 20:29:14
35LamSco
25
52139
16-FEB-2012 20:39:14
Alp1Cen
0
52139
16-FEB-2012 20:43:21
BetCru
0
52139
16-FEB-2012 20:49:14
MuVel
0
52139
16-FEB-2012 20:49:51
MuVel
113
52139
16-FEB-2012 22:08:52
35LamSco
0
52140
16-FEB-2012 22:09:28
35LamSco
25
52140
16-FEB-2012 22:19:28
Alp1Cen
0
52140
16-FEB-2012 22:23:35
BetCru
0
52140
16-FEB-2012 22:29:29
MuVel
0
52140
16-FEB-2012 22:30:05
MuVel
113
52140
16-FEB-2012 23:49:07
35LamSco
0
52141
16-FEB-2012 23:49:43
35LamSco
25
52141

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_1PNPDE20120216_003814_000000453111_00376_52114_8431.N1
16-FEB-2012 00:38:14
Dark
44.500
10
Bet Cen
0.61000
28000.
89
52114
No
2
GOM_TRA_1PNPDE20120216_004102_000000513111_00376_52114_8432.N1
16-FEB-2012 00:41:02
Dark
51.000
20
Bet Cru
1.2530
30000.
102
52114
No
3
GOM_TRA_1PNPDE20120216_004657_000000413111_00376_52114_8433.N1
16-FEB-2012 00:46:57
Dark
41.000
113
Mu Vel
2.6920
5000.0
82
52114
No
4
GOM_TRA_1PNPDE20120216_021828_000000413111_00377_52115_8448.N1
16-FEB-2012 02:18:28
Dark
41.000
10
Bet Cen
0.61000
28000.
82
52115
No
5
GOM_TRA_1PNPDE20120216_022117_000000403111_00377_52115_8449.N1
16-FEB-2012 02:21:17
Dark
40.000
20
Bet Cru
1.2530
30000.
80
52115
No
6
GOM_TRA_1PNPDE20120216_022711_000000453111_00377_52115_8450.N1
16-FEB-2012 02:27:11
Dark
45.000
113
Mu Vel
2.6920
5000.0
90
52115
No
7
GOM_TRA_1PNPDE20120216_053858_000000433111_00379_52117_8552.N1
16-FEB-2012 05:38:58
Dark
42.500
10
Bet Cen
0.61000
28000.
85
52117
No
8
GOM_TRA_1PNPDE20120216_054146_000000413111_00379_52117_8553.N1
16-FEB-2012 05:41:46
Dark
40.500
20
Bet Cru
1.2530
30000.
81
52117
No
9
GOM_TRA_1PNPDE20120216_054740_000000413111_00379_52117_8554.N1
16-FEB-2012 05:47:40
Dark
40.500
113
Mu Vel
2.6920
5000.0
81
52117
No
10
GOM_TRA_1PNPDK20120216_071912_000000433111_00380_52118_2780.N1
16-FEB-2012 07:19:12
Dark
42.500
10
Bet Cen
0.61000
28000.
85
52118
No
11
GOM_TRA_1PNPDK20120216_072200_000000463111_00380_52118_2781.N1
16-FEB-2012 07:22:00
Dark
45.500
20
Bet Cru
1.2530
30000.
91
52118
No
12
GOM_TRA_1PNPDK20120216_072755_000000423111_00380_52118_2782.N1
16-FEB-2012 07:27:55
Dark
42.000
113
Mu Vel
2.6920
5000.0
84
52118
No
13
GOM_TRA_1PNPDK20120216_085927_000000513111_00381_52119_2810.N1
16-FEB-2012 08:59:27
Dark
51.000
10
Bet Cen
0.61000
28000.
102
52119
No
14
GOM_TRA_1PNPDK20120216_090215_000000513111_00381_52119_2811.N1
16-FEB-2012 09:02:15
Dark
50.500
20
Bet Cru
1.2530
30000.
101
52119
No
15
GOM_TRA_1PNPDK20120216_090809_000000423111_00381_52119_2812.N1
16-FEB-2012 09:08:09
Dark
42.000
113
Mu Vel
2.6920
5000.0
84
52119
No
16
GOM_TRA_1PNPDK20120216_103822_000000423111_00382_52120_2851.N1
16-FEB-2012 10:38:22
Dark
42.000
4
Alp1Cen
-0.010000
5800.0
84
52120
No
17
GOM_TRA_1PNPDK20120216_103941_000000483111_00382_52120_2852.N1
16-FEB-2012 10:39:41
Dark
48.000
10
Bet Cen
0.61000
28000.
96
52120
No
18
GOM_TRA_1PNPDK20120216_104229_000000413111_00382_52120_2853.N1
16-FEB-2012 10:42:29
Dark
40.500
20
Bet Cru
1.2530
30000.
81
52120
No
19
GOM_TRA_1PNPDK20120216_121837_000000453111_00383_52121_2886.N1
16-FEB-2012 12:18:37
Dark
44.500
4
Alp1Cen
-0.010000
5800.0
89
52121
No
20
GOM_TRA_1PNPDK20120216_121956_000000423111_00383_52121_2887.N1
16-FEB-2012 12:19:56
Dark
42.000
10
Bet Cen
0.61000
28000.
84
52121
No
21
GOM_TRA_1PNPDK20120216_122244_000000493111_00383_52121_2888.N1
16-FEB-2012 12:22:44
Dark
49.000
20
Bet Cru
1.2530
30000.
98
52121
No
22
GOM_TRA_1PNPDK20120216_135851_000000443111_00384_52122_2927.N1
16-FEB-2012 13:58:51
Dark
43.500
4
Alp1Cen
-0.010000
5800.0
87
52122
No
23
GOM_TRA_1PNPDK20120216_140010_000000423111_00384_52122_2928.N1
16-FEB-2012 14:00:10
Dark
42.000
10
Bet Cen
0.61000
28000.
84
52122
No
24
GOM_TRA_1PNPDK20120216_140258_000000433111_00384_52122_2929.N1
16-FEB-2012 14:02:58
Dark
43.000
20
Bet Cru
1.2530
30000.
86
52122
No
25
GOM_TRA_1PNPDK20120216_153906_000000443111_00385_52123_2971.N1
16-FEB-2012 15:39:06
Dark
43.500
4
Alp1Cen
-0.010000
5800.0
87
52123
No
26
GOM_TRA_1PNPDK20120216_154024_000000423111_00385_52123_2972.N1
16-FEB-2012 15:40:24
Dark
42.000
10
Bet Cen
0.61000
28000.
84
52123
No
27
GOM_TRA_1PNPDK20120216_154313_000000443111_00385_52123_2973.N1
16-FEB-2012 15:43:13
Dark
43.500
20
Bet Cru
1.2530
30000.
87
52123
No
28
GOM_TRA_1PNPDK20120216_171920_000000463111_00386_52124_3194.N1
16-FEB-2012 17:19:20
Dark
46.000
4
Alp1Cen
-0.010000
5800.0
92
52124
No
29
GOM_TRA_1PNPDK20120216_172039_000000443111_00386_52124_3195.N1
16-FEB-2012 17:20:39
Dark
44.000
10
Bet Cen
0.61000
28000.
88
52124
No
30
GOM_TRA_1PNPDK20120216_172327_000000533111_00386_52124_3196.N1
16-FEB-2012 17:23:27
Dark
52.500
20
Bet Cru
1.2530
30000.
105
52124
No
31
GOM_TRA_1PNPDK20120216_185935_000000433111_00387_52125_3231.N1
16-FEB-2012 18:59:35
Dark
43.000
4
Alp1Cen
-0.010000
5800.0
86
52125
No
32
GOM_TRA_1PNPDK20120216_190054_000000483111_00387_52125_3232.N1
16-FEB-2012 19:00:54
Dark
47.500
10
Bet Cen
0.61000
28000.
95
52125
No
33
GOM_TRA_1PNPDK20120216_190342_000000413111_00387_52125_3233.N1
16-FEB-2012 19:03:42
Dark
41.000
20
Bet Cru
1.2530
30000.
82
52125
No
34
GOM_TRA_1PNPDK20120216_203949_000000523111_00388_52126_3267.N1
16-FEB-2012 20:39:49
Dark
51.500
4
Alp1Cen
-0.010000
5800.0
103
52126
No
35
GOM_TRA_1PNPDK20120216_204108_000000443111_00388_52126_3268.N1
16-FEB-2012 20:41:08
Dark
43.500
10
Bet Cen
0.61000
28000.
87
52126
No
36
GOM_TRA_1PNPDK20120216_204356_000000463111_00388_52126_3269.N1
16-FEB-2012 20:43:56
Dark
45.500
20
Bet Cru
1.2530
30000.
91
52126
No
37
GOM_TRA_1PNPDE20120216_222004_000000443111_00389_52127_8781.N1
16-FEB-2012 22:20:04
Dark
43.500
4
Alp1Cen
-0.010000
5800.0
87
52127
No
38
GOM_TRA_1PNPDE20120216_222123_000000443111_00389_52127_8782.N1
16-FEB-2012 22:21:23
Dark
44.000
10
Bet Cen
0.61000
28000.
88
52127
No
39
GOM_TRA_1PNPDE20120216_222410_000000433111_00389_52127_8783.N1
16-FEB-2012 22:24:10
Dark
43.000
20
Bet Cru
1.2530
30000.
86
52127
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_1PNPDE20120216_003814_000000453111_00376_52114_8431.N1
DC map used
GOM_TRA_1PNPDE20120216_004102_000000513111_00376_52114_8432.N1
DC map used
GOM_TRA_1PNPDE20120216_004657_000000413111_00376_52114_8433.N1
DC map used
GOM_TRA_1PNPDE20120216_021828_000000413111_00377_52115_8448.N1
DC map used
GOM_TRA_1PNPDE20120216_022117_000000403111_00377_52115_8449.N1
DC map used
GOM_TRA_1PNPDE20120216_022711_000000453111_00377_52115_8450.N1
DC map used
GOM_TRA_1PNPDE20120216_053858_000000433111_00379_52117_8552.N1
DC map used
GOM_TRA_1PNPDE20120216_054146_000000413111_00379_52117_8553.N1
DC map used
GOM_TRA_1PNPDE20120216_054740_000000413111_00379_52117_8554.N1
DC map used
GOM_TRA_1PNPDK20120216_071912_000000433111_00380_52118_2780.N1
DC map used
GOM_TRA_1PNPDK20120216_072200_000000463111_00380_52118_2781.N1
DC map used
GOM_TRA_1PNPDK20120216_072755_000000423111_00380_52118_2782.N1
DC map used
GOM_TRA_1PNPDK20120216_085927_000000513111_00381_52119_2810.N1
DC map used
GOM_TRA_1PNPDK20120216_090215_000000513111_00381_52119_2811.N1
DC map used
GOM_TRA_1PNPDK20120216_090809_000000423111_00381_52119_2812.N1
DC map used
GOM_TRA_1PNPDK20120216_103822_000000423111_00382_52120_2851.N1
DC map used
GOM_TRA_1PNPDK20120216_103941_000000483111_00382_52120_2852.N1
DC map used
GOM_TRA_1PNPDK20120216_104229_000000413111_00382_52120_2853.N1
DC map used
GOM_TRA_1PNPDK20120216_121837_000000453111_00383_52121_2886.N1
DC map used
GOM_TRA_1PNPDK20120216_121956_000000423111_00383_52121_2887.N1
DC map used
GOM_TRA_1PNPDK20120216_122244_000000493111_00383_52121_2888.N1
DC map used
GOM_TRA_1PNPDK20120216_135851_000000443111_00384_52122_2927.N1
DC map used
GOM_TRA_1PNPDK20120216_140010_000000423111_00384_52122_2928.N1
DC map used
GOM_TRA_1PNPDK20120216_140258_000000433111_00384_52122_2929.N1
DC map used
GOM_TRA_1PNPDK20120216_153906_000000443111_00385_52123_2971.N1
DC map used
GOM_TRA_1PNPDK20120216_154024_000000423111_00385_52123_2972.N1
DC map used
GOM_TRA_1PNPDK20120216_154313_000000443111_00385_52123_2973.N1
DC map used
GOM_TRA_1PNPDK20120216_171920_000000463111_00386_52124_3194.N1
DC map used
GOM_TRA_1PNPDK20120216_172039_000000443111_00386_52124_3195.N1
DC map used
GOM_TRA_1PNPDK20120216_172327_000000533111_00386_52124_3196.N1
DC map used
GOM_TRA_1PNPDK20120216_185935_000000433111_00387_52125_3231.N1
DC map used
GOM_TRA_1PNPDK20120216_190054_000000483111_00387_52125_3232.N1
DC map used
GOM_TRA_1PNPDK20120216_190342_000000413111_00387_52125_3233.N1
DC map used
GOM_TRA_1PNPDK20120216_203949_000000523111_00388_52126_3267.N1
DC map used
GOM_TRA_1PNPDK20120216_204108_000000443111_00388_52126_3268.N1
DC map used
GOM_TRA_1PNPDK20120216_204356_000000463111_00388_52126_3269.N1
DC map used
GOM_TRA_1PNPDE20120216_222004_000000443111_00389_52127_8781.N1
DC map used
GOM_TRA_1PNPDE20120216_222123_000000443111_00389_52127_8782.N1
DC map used
GOM_TRA_1PNPDE20120216_222410_000000433111_00389_52127_8783.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:
82.0513 %
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:
15.045
NaN
NaN
St. deviation:
3.8793
NaN
NaN
Maximum:
20.605
NaN
NaN
Minimum:
6.4129
NaN
NaN
Number of data:
39.000
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:
0.19166
-0.28677
NaN
NaN
St. deviation:
0.30369
0.66163
NaN
NaN
Maximum:
2.0000
3.1000
NaN
NaN
Minimum:
-1.8000
-6.5000
NaN
NaN
Number of data:
37400.
37400.
NaN
NaN
90Percentile:
0.60000
0.60000
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
16-FEB-2012 00:38:14
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20120130_103112_20120125_000000_20500101_000000
1
16-FEB-2012 00:38:14
LEVEL-1B_PROC_CONFIG
GOM_PR1_AXVIEC20110513_081743_20020301_000000_20500101_000000
1
16-FEB-2012 00:38:14
STAR_CATALOGUE
GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000
1
16-FEB-2012 00:38:14
STELLAR_SPECTRA_DATABANK
GOM_STS_AXVIEC20091111_151504_20020101_160000_20500101_000000
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16-FEB-2012 00:38:14
ECMWF_FILE
AUX_ECF_AXNECM20120215_061241_20120215_210000_20120216_090000
1
16-FEB-2012 00:38:14
ECMWF_FILE
AUX_ECA_AXNECM20120216_062115_20120215_210000_20120216_090000
7
16-FEB-2012 05:38:58
ECMWF_FILE
AUX_ECF_AXNECM20120215_180114_20120216_030000_20120216_150000
13
16-FEB-2012 08:59:27
ECMWF_FILE
AUX_ECF_AXNECM20120216_062115_20120216_090000_20120216_210000
16
16-FEB-2012 10:38:22
ECMWF_FILE
AUX_ECF_AXNECM20120216_062115_20120216_150000_20120217_030000
25
16-FEB-2012 15:39:06
ECMWF_FILE
AUX_ECA_AXNECM20120216_182116_20120216_090000_20120216_210000
31
16-FEB-2012 18:59:35
ECMWF_FILE
AUX_ECF_AXNECM20120216_062116_20120216_210000_20120217_090000
37
16-FEB-2012 22:20:04
OPTIONAL_ECMWF_FILE
MISSING
1
16-FEB-2012 00:38:14
ORBIT_DATA_FILE
AUX_FPO_AXVPDS20120215_232113_20120215_193050_20120225_200414
1
16-FEB-2012 00:38:14