GOMOS Daily Report 21-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 12:09:12
Data source version
GOMOS/6.01
Start time of products
21FEB2012 00:40:56
Stop time of products
21FEB2012 23:00:09
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)

UTC start time Star name Star ID Orbit
21-FEB-2012 00:43:53
KapSco
85
52199
21-FEB-2012 02:21:12
10Gam2Sgr
167
52200
21-FEB-2012 07:21:56
10Gam2Sgr
167
52203
21-FEB-2012 07:24:52
KapSco
85
52203
21-FEB-2012 07:36:39
BetCen
10
52203
21-FEB-2012 14:02:54
10Gam2Sgr
167
52207
21-FEB-2012 14:05:50
KapSco
85
52207
21-FEB-2012 14:17:38
BetCen
10
52207
21-FEB-2012 15:43:09
10Gam2Sgr
167
52208
21-FEB-2012 15:46:04
KapSco
85
52208
21-FEB-2012 15:57:52
BetCen
10
52208
21-FEB-2012 17:59:29
30AlpHya
48
52209

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_1PNPDE20120221_004056_000000463112_00016_52185_0362.N1
21-FEB-2012 00:40:56
Dark
46.000
167
10Gam2Sgr
2.9840
4500.0
92
52185
No
2
GOM_TRA_1PNPDE20120221_005539_000000503112_00017_52186_0363.N1
21-FEB-2012 00:55:39
Dark
50.000
10
Bet Cen
0.61000
28000.
100
52186
No
3
GOM_TRA_1PNPDE20120221_022406_000000423112_00017_52186_0392.N1
21-FEB-2012 02:24:06
Dark
41.500
85
Kap Sco
2.4070
28000.
83
52186
No
4
GOM_TRA_1PNPDE20120221_023554_000000433112_00018_52187_0393.N1
21-FEB-2012 02:35:54
Dark
43.000
10
Bet Cen
0.61000
28000.
86
52187
No
5
GOM_TRA_1PNPDE20120221_040125_000000403112_00018_52187_0445.N1
21-FEB-2012 04:01:25
Dark
39.500
167
10Gam2Sgr
2.9840
4500.0
79
52187
No
6
GOM_TRA_1PNPDE20120221_040421_000000423112_00018_52187_0446.N1
21-FEB-2012 04:04:21
Dark
41.500
85
Kap Sco
2.4070
28000.
83
52187
No
7
GOM_TRA_1PNPDE20120221_041609_000000533112_00019_52188_0447.N1
21-FEB-2012 04:16:09
Dark
52.500
10
Bet Cen
0.61000
28000.
105
52188
No
8
GOM_TRA_1PNPDE20120221_054140_000000453112_00019_52188_0495.N1
21-FEB-2012 05:41:40
Dark
45.000
167
10Gam2Sgr
2.9840
4500.0
90
52188
No
9
GOM_TRA_1PNPDE20120221_054435_000000423112_00019_52188_0496.N1
21-FEB-2012 05:44:35
Dark
41.500
85
Kap Sco
2.4070
28000.
83
52188
No
10
GOM_TRA_1PNPDE20120221_055623_000000413112_00020_52189_0497.N1
21-FEB-2012 05:56:23
Dark
40.500
10
Bet Cen
0.61000
28000.
81
52189
No
11
GOM_TRA_1PNPDK20120221_072154_000000463112_00020_52189_4859.N1
21-FEB-2012 07:21:54
Dark
45.500
167
10Gam2Sgr
2.9840
4500.0
91
52189
No
12
GOM_TRA_1PNPDK20120221_072450_000000453112_00020_52189_4860.N1
21-FEB-2012 07:24:50
Dark
44.500
85
Kap Sco
2.4070
28000.
89
52189
No
13
GOM_TRA_1PNPDK20120221_073638_000000483112_00021_52190_4861.N1
21-FEB-2012 07:36:38
Dark
48.000
10
Bet Cen
0.61000
28000.
96
52190
No
14
GOM_TRA_1PNPDK20120221_090209_000000433112_00021_52190_4892.N1
21-FEB-2012 09:02:09
Dark
43.000
167
10Gam2Sgr
2.9840
4500.0
86
52190
No
15
GOM_TRA_1PNPDK20120221_090504_000000423112_00021_52190_4893.N1
21-FEB-2012 09:05:04
Dark
42.000
85
Kap Sco
2.4070
28000.
84
52190
No
16
GOM_TRA_1PNPDK20120221_091652_000000493112_00022_52191_4894.N1
21-FEB-2012 09:16:52
Dark
48.500
10
Bet Cen
0.61000
28000.
97
52191
No
17
GOM_TRA_1PNPDK20120221_104223_000000443112_00022_52191_4940.N1
21-FEB-2012 10:42:23
Dark
43.500
167
10Gam2Sgr
2.9840
4500.0
87
52191
No
18
GOM_TRA_1PNPDK20120221_104519_000000443112_00022_52191_4941.N1
21-FEB-2012 10:45:19
Dark
44.000
85
Kap Sco
2.4070
28000.
88
52191
No
19
GOM_TRA_1PNPDK20120221_105707_000000433112_00023_52192_4942.N1
21-FEB-2012 10:57:07
Dark
43.000
10
Bet Cen
0.61000
28000.
86
52192
No
20
GOM_TRA_1PNPDK20120221_122238_000000463112_00023_52192_4989.N1
21-FEB-2012 12:22:38
Dark
45.500
167
10Gam2Sgr
2.9840
4500.0
91
52192
No
21
GOM_TRA_1PNPDK20120221_122533_000000413112_00023_52192_4990.N1
21-FEB-2012 12:25:33
Dark
41.000
85
Kap Sco
2.4070
28000.
82
52192
No
22
GOM_TRA_1PNPDK20120221_123721_000000443112_00024_52193_4991.N1
21-FEB-2012 12:37:21
Dark
44.000
10
Bet Cen
0.61000
28000.
88
52193
No
23
GOM_TRA_1PNPDK20120221_140252_000000443112_00024_52193_5029.N1
21-FEB-2012 14:02:52
Dark
43.500
167
10Gam2Sgr
2.9840
4500.0
87
52193
No
24
GOM_TRA_1PNPDK20120221_140548_000000403112_00024_52193_5030.N1
21-FEB-2012 14:05:48
Dark
40.000
85
Kap Sco
2.4070
28000.
80
52193
No
25
GOM_TRA_1PNPDK20120221_141736_000000453112_00025_52194_5031.N1
21-FEB-2012 14:17:36
Dark
45.000
10
Bet Cen
0.61000
28000.
90
52194
No
26
GOM_TRA_1PNPDK20120221_154307_000000403112_00025_52194_5071.N1
21-FEB-2012 15:43:07
Dark
40.000
167
10Gam2Sgr
2.9840
4500.0
80
52194
No
27
GOM_TRA_1PNPDK20120221_154603_000000413112_00025_52194_5072.N1
21-FEB-2012 15:46:03
Dark
41.000
85
Kap Sco
2.4070
28000.
82
52194
No
28
GOM_TRA_1PNPDK20120221_155750_000000533112_00026_52195_5073.N1
21-FEB-2012 15:57:50
Dark
53.000
10
Bet Cen
0.61000
28000.
106
52195
No
29
GOM_TRA_1PNPDK20120221_172321_000000343112_00026_52195_5095.N1
21-FEB-2012 17:23:21
Dark
34.000
167
10Gam2Sgr
2.9840
4500.0
68
52195
No
30
GOM_TRA_1PNPDK20120221_172617_000000403112_00026_52195_5096.N1
21-FEB-2012 17:26:17
Dark
40.000
85
Kap Sco
2.4070
28000.
80
52195
No
31
GOM_TRA_1PNPDK20120221_173805_000000433112_00027_52196_5097.N1
21-FEB-2012 17:38:05
Dark
42.500
10
Bet Cen
0.61000
28000.
85
52196
No
32
GOM_TRA_1PNPDK20120221_190336_000000293112_00027_52196_5135.N1
21-FEB-2012 19:03:36
Dark
29.000
167
10Gam2Sgr
2.9840
4500.0
58
52196
No
33
GOM_TRA_1PNPDK20120221_190632_000000353112_00027_52196_5136.N1
21-FEB-2012 19:06:32
Dark
35.000
85
Kap Sco
2.4070
28000.
70
52196
No
34
GOM_TRA_1PNPDK20120221_191819_000000413112_00028_52197_5137.N1
21-FEB-2012 19:18:19
Dark
41.000
10
Bet Cen
0.61000
28000.
82
52197
No
35
GOM_TRA_1PNPDK20120221_193941_000000313112_00028_52197_5160.N1
21-FEB-2012 19:39:41
Twi_and_stray
31.000
48
30Alp Hya
1.9770
4100.0
62
52197
No
36
GOM_TRA_1PNPDK20120221_204646_000000313112_00028_52197_5161.N1
21-FEB-2012 20:46:46
Dark
31.000
85
Kap Sco
2.4070
28000.
62
52197
No
37
GOM_TRA_1PNPDK20120221_205834_000000433112_00029_52198_5162.N1
21-FEB-2012 20:58:34
Dark
43.000
10
Bet Cen
0.61000
28000.
86
52198
No
38
GOM_TRA_1PNPDE20120221_211955_000000363112_00029_52198_0701.N1
21-FEB-2012 21:19:55
Twi_and_stray
35.500
48
30Alp Hya
1.9770
4100.0
71
52198
No
39
GOM_TRA_1PNPDE20120221_222701_000000263112_00029_52198_0732.N1
21-FEB-2012 22:27:01
Dark
26.000
85
Kap Sco
2.4070
28000.
52
52198
No
40
GOM_TRA_1PNPDE20120221_223848_000000453112_00030_52199_0733.N1
21-FEB-2012 22:38:48
Dark
44.500
10
Bet Cen
0.61000
28000.
89
52199
No
41
GOM_TRA_1PNPDE20120221_230009_000000423112_00030_52199_0734.N1
21-FEB-2012 23:00:09
Twi_and_stray
41.500
48
30Alp Hya
1.9770
4100.0
83
52199
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_1PNPDE20120221_004056_000000463112_00016_52185_0362.N1
DC map used
GOM_TRA_1PNPDE20120221_005539_000000503112_00017_52186_0363.N1
DC map used
GOM_TRA_1PNPDE20120221_022406_000000423112_00017_52186_0392.N1
DC map used
GOM_TRA_1PNPDE20120221_023554_000000433112_00018_52187_0393.N1
DC map used
GOM_TRA_1PNPDE20120221_040125_000000403112_00018_52187_0445.N1
DC map used
GOM_TRA_1PNPDE20120221_040421_000000423112_00018_52187_0446.N1
DC map used
GOM_TRA_1PNPDE20120221_041609_000000533112_00019_52188_0447.N1
DC map used
GOM_TRA_1PNPDE20120221_054140_000000453112_00019_52188_0495.N1
DC map used
GOM_TRA_1PNPDE20120221_054435_000000423112_00019_52188_0496.N1
DC map used
GOM_TRA_1PNPDE20120221_055623_000000413112_00020_52189_0497.N1
DC map used
GOM_TRA_1PNPDK20120221_072154_000000463112_00020_52189_4859.N1
DC map used
GOM_TRA_1PNPDK20120221_072450_000000453112_00020_52189_4860.N1
DC map used
GOM_TRA_1PNPDK20120221_073638_000000483112_00021_52190_4861.N1
DC map used
GOM_TRA_1PNPDK20120221_090209_000000433112_00021_52190_4892.N1
DC map used
GOM_TRA_1PNPDK20120221_090504_000000423112_00021_52190_4893.N1
DC map used
GOM_TRA_1PNPDK20120221_091652_000000493112_00022_52191_4894.N1
DC map used
GOM_TRA_1PNPDK20120221_104223_000000443112_00022_52191_4940.N1
DC map used
GOM_TRA_1PNPDK20120221_104519_000000443112_00022_52191_4941.N1
DC map used
GOM_TRA_1PNPDK20120221_105707_000000433112_00023_52192_4942.N1
DC map used
GOM_TRA_1PNPDK20120221_122238_000000463112_00023_52192_4989.N1
DC map used
GOM_TRA_1PNPDK20120221_122533_000000413112_00023_52192_4990.N1
DC map used
GOM_TRA_1PNPDK20120221_123721_000000443112_00024_52193_4991.N1
DC map used
GOM_TRA_1PNPDK20120221_140252_000000443112_00024_52193_5029.N1
DC map used
GOM_TRA_1PNPDK20120221_140548_000000403112_00024_52193_5030.N1
DC map used
GOM_TRA_1PNPDK20120221_141736_000000453112_00025_52194_5031.N1
DC map used
GOM_TRA_1PNPDK20120221_154307_000000403112_00025_52194_5071.N1
DC map used
GOM_TRA_1PNPDK20120221_154603_000000413112_00025_52194_5072.N1
DC map used
GOM_TRA_1PNPDK20120221_155750_000000533112_00026_52195_5073.N1
DC map used
GOM_TRA_1PNPDK20120221_172321_000000343112_00026_52195_5095.N1
DC map used
GOM_TRA_1PNPDK20120221_172617_000000403112_00026_52195_5096.N1
DC map used
GOM_TRA_1PNPDK20120221_173805_000000433112_00027_52196_5097.N1
DC map used
GOM_TRA_1PNPDK20120221_190336_000000293112_00027_52196_5135.N1
DC map used
GOM_TRA_1PNPDK20120221_190632_000000353112_00027_52196_5136.N1
DC map used
GOM_TRA_1PNPDK20120221_191819_000000413112_00028_52197_5137.N1
DC map used
GOM_TRA_1PNPDK20120221_193941_000000313112_00028_52197_5160.N1
DC map used
GOM_TRA_1PNPDK20120221_204646_000000313112_00028_52197_5161.N1
DC map used
GOM_TRA_1PNPDK20120221_205834_000000433112_00029_52198_5162.N1
DC map used
GOM_TRA_1PNPDE20120221_211955_000000363112_00029_52198_0701.N1
DC map used
GOM_TRA_1PNPDE20120221_222701_000000263112_00029_52198_0732.N1
DC map used
GOM_TRA_1PNPDE20120221_223848_000000453112_00030_52199_0733.N1
DC map used
GOM_TRA_1PNPDE20120221_230009_000000423112_00030_52199_0734.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:
78.0488 %
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:
19.108
NaN
NaN
St. deviation:
10.660
NaN
NaN
Maximum:
57.882
NaN
NaN
Minimum:
6.2668
NaN
NaN
Number of data:
38.000
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:
0.16254
-0.30472
NaN
NaN
St. deviation:
0.61316
0.88342
NaN
NaN
Maximum:
6.1000
26.700
NaN
NaN
Minimum:
-14.500
-10.000
NaN
NaN
Number of data:
36550.
36550.
NaN
NaN
90Percentile:
1.0000
0.90000
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
21-FEB-2012 00:40:56
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20120130_103112_20120125_000000_20500101_000000
1
21-FEB-2012 00:40:56
LEVEL-1B_PROC_CONFIG
GOM_PR1_AXVIEC20110513_081743_20020301_000000_20500101_000000
1
21-FEB-2012 00:40:56
STAR_CATALOGUE
GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000
1
21-FEB-2012 00:40:56
STELLAR_SPECTRA_DATABANK
GOM_STS_AXVIEC20091111_151504_20020101_160000_20500101_000000
1
21-FEB-2012 00:40:56
ECMWF_FILE
AUX_ECF_AXNECM20120220_062116_20120220_210000_20120221_090000
1
21-FEB-2012 00:40:56
ECMWF_FILE
AUX_ECF_AXNECM20120220_192940_20120221_030000_20120221_150000
5
21-FEB-2012 04:01:25
ECMWF_FILE
AUX_ECA_AXNECM20120221_062112_20120220_210000_20120221_090000
8
21-FEB-2012 05:41:40
ECMWF_FILE
AUX_ECF_AXNECM20120221_062113_20120221_090000_20120221_210000
14
21-FEB-2012 09:02:09
ECMWF_FILE
AUX_ECF_AXNECM20120221_062113_20120221_150000_20120222_030000
26
21-FEB-2012 15:43:07
ECMWF_FILE
AUX_ECA_AXNECM20120221_182114_20120221_090000_20120221_210000
32
21-FEB-2012 19:03:36
ECMWF_FILE
AUX_ECF_AXNECM20120221_062114_20120221_210000_20120222_090000
38
21-FEB-2012 21:19:55
OPTIONAL_ECMWF_FILE
MISSING
1
21-FEB-2012 00:40:56
ORBIT_DATA_FILE
AUX_FPO_AXVPDS20120220_232939_20120220_194732_20120301_202055
1
21-FEB-2012 00:40:56