GOMOS Daily Report 25-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
28FEB2012 07:00:59
Data source version
GOMOS/6.01
Start time of products
25FEB2012 00:09:27
Stop time of products
25FEB2012 23:36:29
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)

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_1PNPDE20120225_000927_000000423112_00074_52243_1933.N1
25-FEB-2012 00:09:27
Dark
42.000
10
Bet Cen
0.61000
28000.
84
52243
No
2
GOM_TRA_1PNPDE20120225_001306_000000573112_00074_52243_1934.N1
25-FEB-2012 00:13:06
Dark
57.000
26
Gam Cru
1.6240
2900.0
114
52243
No
3
GOM_TRA_1PNPDE20120225_013416_000000463112_00074_52243_1978.N1
25-FEB-2012 01:34:16
Dark
45.500
116
19Del Sgr
2.7000
4100.0
91
52243
No
4
GOM_TRA_1PNPDE20120225_014942_000000463112_00075_52244_1979.N1
25-FEB-2012 01:49:42
Dark
45.500
10
Bet Cen
0.61000
28000.
91
52244
No
5
GOM_TRA_1PNPDE20120225_015321_000000553112_00075_52244_1980.N1
25-FEB-2012 01:53:21
Dark
55.000
26
Gam Cru
1.6240
2900.0
110
52244
No
6
GOM_TRA_1PNPDE20120225_031431_000000423112_00075_52244_1981.N1
25-FEB-2012 03:14:31
Dark
42.000
116
19Del Sgr
2.7000
4100.0
84
52244
No
7
GOM_TRA_1PNPDE20120225_032956_000000433112_00076_52245_1982.N1
25-FEB-2012 03:29:56
Dark
42.500
10
Bet Cen
0.61000
28000.
85
52245
No
8
GOM_TRA_1PNPDE20120225_033335_000000583112_00076_52245_1983.N1
25-FEB-2012 03:33:35
Dark
57.500
26
Gam Cru
1.6240
2900.0
115
52245
No
9
GOM_TRA_1PNPDE20120225_045445_000000373112_00076_52245_2032.N1
25-FEB-2012 04:54:45
Dark
37.000
116
19Del Sgr
2.7000
4100.0
74
52245
No
10
GOM_TRA_1PNPDE20120225_051011_000000413112_00077_52246_2033.N1
25-FEB-2012 05:10:11
Dark
41.000
10
Bet Cen
0.61000
28000.
82
52246
No
11
GOM_TRA_1PNPDE20120225_051350_000000483112_00077_52246_2034.N1
25-FEB-2012 05:13:50
Dark
48.000
26
Gam Cru
1.6240
2900.0
96
52246
No
12
GOM_TRA_1PNPDK20120225_063500_000000313112_00077_52246_6441.N1
25-FEB-2012 06:35:00
Dark
31.000
116
19Del Sgr
2.7000
4100.0
62
52246
No
13
GOM_TRA_1PNPDK20120225_065025_000000483112_00078_52247_6442.N1
25-FEB-2012 06:50:25
Dark
48.000
10
Bet Cen
0.61000
28000.
96
52247
No
14
GOM_TRA_1PNPDK20120225_065404_000000493112_00078_52247_6443.N1
25-FEB-2012 06:54:04
Dark
48.500
26
Gam Cru
1.6240
2900.0
97
52247
No
15
GOM_TRA_1PNPDK20120225_081514_000000253112_00078_52247_6480.N1
25-FEB-2012 08:15:14
Dark
25.000
116
19Del Sgr
2.7000
4100.0
50
52247
No
16
GOM_TRA_1PNPDK20120225_083040_000000513112_00079_52248_6481.N1
25-FEB-2012 08:30:40
Dark
51.000
10
Bet Cen
0.61000
28000.
102
52248
No
17
GOM_TRA_1PNPDK20120225_083419_000000573112_00079_52248_6482.N1
25-FEB-2012 08:34:19
Dark
56.500
26
Gam Cru
1.6240
2900.0
113
52248
No
18
GOM_TRA_1PNPDK20120225_101054_000000513112_00080_52249_6513.N1
25-FEB-2012 10:10:54
Dark
50.500
10
Bet Cen
0.61000
28000.
101
52249
No
19
GOM_TRA_1PNPDK20120225_101433_000000553112_00080_52249_6514.N1
25-FEB-2012 10:14:33
Dark
55.000
26
Gam Cru
1.6240
2900.0
110
52249
No
20
GOM_TRA_1PNPDK20120225_115109_000000413112_00081_52250_6544.N1
25-FEB-2012 11:51:09
Dark
41.000
10
Bet Cen
0.61000
28000.
82
52250
No
21
GOM_TRA_1PNPDK20120225_115448_000000493112_00081_52250_6545.N1
25-FEB-2012 11:54:48
Dark
48.500
26
Gam Cru
1.6240
2900.0
97
52250
No
22
GOM_TRA_1PNPDK20120225_133123_000000463112_00082_52251_6589.N1
25-FEB-2012 13:31:23
Dark
46.000
10
Bet Cen
0.61000
28000.
92
52251
No
23
GOM_TRA_1PNPDK20120225_133502_000000573112_00082_52251_6590.N1
25-FEB-2012 13:35:02
Dark
56.500
26
Gam Cru
1.6240
2900.0
113
52251
No
24
GOM_TRA_1PNPDK20120225_151138_000000443112_00083_52252_6623.N1
25-FEB-2012 15:11:38
Dark
44.000
10
Bet Cen
0.61000
28000.
88
52252
No
25
GOM_TRA_1PNPDK20120225_151516_000000563112_00083_52252_6624.N1
25-FEB-2012 15:15:16
Dark
56.000
26
Gam Cru
1.6240
2900.0
112
52252
No
26
GOM_TRA_1PNPDK20120225_165153_000000443112_00084_52253_6662.N1
25-FEB-2012 16:51:53
Dark
43.500
10
Bet Cen
0.61000
28000.
87
52253
No
27
GOM_TRA_1PNPDK20120225_165531_000000433112_00084_52253_6663.N1
25-FEB-2012 16:55:31
Dark
43.000
26
Gam Cru
1.6240
2900.0
86
52253
No
28
GOM_TRA_1PNPDK20120225_183207_000000433112_00085_52254_6697.N1
25-FEB-2012 18:32:07
Dark
42.500
10
Bet Cen
0.61000
28000.
85
52254
No
29
GOM_TRA_1PNPDK20120225_183545_000000433112_00085_52254_6698.N1
25-FEB-2012 18:35:45
Dark
43.000
26
Gam Cru
1.6240
2900.0
86
52254
No
30
GOM_TRA_1PNPDK20120225_201222_000000533112_00086_52255_6722.N1
25-FEB-2012 20:12:22
Dark
52.500
10
Bet Cen
0.61000
28000.
105
52255
No
31
GOM_TRA_1PNPDK20120225_201600_000000523112_00086_52255_6723.N1
25-FEB-2012 20:16:00
Dark
51.500
26
Gam Cru
1.6240
2900.0
103
52255
No
32
GOM_TRA_1PNPDE20120225_215236_000000453112_00087_52256_2260.N1
25-FEB-2012 21:52:36
Dark
45.000
10
Bet Cen
0.61000
28000.
90
52256
No
33
GOM_TRA_1PNPDE20120225_215614_000000493112_00087_52256_2261.N1
25-FEB-2012 21:56:14
Dark
49.000
26
Gam Cru
1.6240
2900.0
98
52256
No
34
GOM_TRA_1PNPDE20120225_233251_000000433112_00088_52257_2285.N1
25-FEB-2012 23:32:51
Dark
42.500
10
Bet Cen
0.61000
28000.
85
52257
No
35
GOM_TRA_1PNPDE20120225_233629_000000573112_00088_52257_2286.N1
25-FEB-2012 23:36:29
Dark
56.500
26
Gam Cru
1.6240
2900.0
113
52257
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_1PNPDE20120225_000927_000000423112_00074_52243_1933.N1
DC map used
GOM_TRA_1PNPDE20120225_001306_000000573112_00074_52243_1934.N1
DC map used
GOM_TRA_1PNPDE20120225_013416_000000463112_00074_52243_1978.N1
DC map used
GOM_TRA_1PNPDE20120225_014942_000000463112_00075_52244_1979.N1
DC map used
GOM_TRA_1PNPDE20120225_015321_000000553112_00075_52244_1980.N1
DC map used
GOM_TRA_1PNPDE20120225_031431_000000423112_00075_52244_1981.N1
DC map used
GOM_TRA_1PNPDE20120225_032956_000000433112_00076_52245_1982.N1
DC map used
GOM_TRA_1PNPDE20120225_033335_000000583112_00076_52245_1983.N1
DC map used
GOM_TRA_1PNPDE20120225_045445_000000373112_00076_52245_2032.N1
DC map used
GOM_TRA_1PNPDE20120225_051011_000000413112_00077_52246_2033.N1
DC map used
GOM_TRA_1PNPDE20120225_051350_000000483112_00077_52246_2034.N1
DC map used
GOM_TRA_1PNPDK20120225_063500_000000313112_00077_52246_6441.N1
DC map used
GOM_TRA_1PNPDK20120225_065025_000000483112_00078_52247_6442.N1
DC map used
GOM_TRA_1PNPDK20120225_065404_000000493112_00078_52247_6443.N1
DC map used
GOM_TRA_1PNPDK20120225_081514_000000253112_00078_52247_6480.N1
DC map used
GOM_TRA_1PNPDK20120225_083040_000000513112_00079_52248_6481.N1
DC map used
GOM_TRA_1PNPDK20120225_083419_000000573112_00079_52248_6482.N1
DC map used
GOM_TRA_1PNPDK20120225_101054_000000513112_00080_52249_6513.N1
DC map used
GOM_TRA_1PNPDK20120225_101433_000000553112_00080_52249_6514.N1
DC map used
GOM_TRA_1PNPDK20120225_115109_000000413112_00081_52250_6544.N1
DC map used
GOM_TRA_1PNPDK20120225_115448_000000493112_00081_52250_6545.N1
DC map used
GOM_TRA_1PNPDK20120225_133123_000000463112_00082_52251_6589.N1
DC map used
GOM_TRA_1PNPDK20120225_133502_000000573112_00082_52251_6590.N1
DC map used
GOM_TRA_1PNPDK20120225_151138_000000443112_00083_52252_6623.N1
DC map used
GOM_TRA_1PNPDK20120225_151516_000000563112_00083_52252_6624.N1
DC map used
GOM_TRA_1PNPDK20120225_165153_000000443112_00084_52253_6662.N1
DC map used
GOM_TRA_1PNPDK20120225_165531_000000433112_00084_52253_6663.N1
DC map used
GOM_TRA_1PNPDK20120225_183207_000000433112_00085_52254_6697.N1
DC map used
GOM_TRA_1PNPDK20120225_183545_000000433112_00085_52254_6698.N1
DC map used
GOM_TRA_1PNPDK20120225_201222_000000533112_00086_52255_6722.N1
DC map used
GOM_TRA_1PNPDK20120225_201600_000000523112_00086_52255_6723.N1
DC map used
GOM_TRA_1PNPDE20120225_215236_000000453112_00087_52256_2260.N1
DC map used
GOM_TRA_1PNPDE20120225_215614_000000493112_00087_52256_2261.N1
DC map used
GOM_TRA_1PNPDE20120225_233251_000000433112_00088_52257_2285.N1
DC map used
GOM_TRA_1PNPDE20120225_233629_000000573112_00088_52257_2286.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:
85.7143 %
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:
13.936
NaN
NaN
St. deviation:
11.193
NaN
NaN
Maximum:
60.114
NaN
NaN
Minimum:
3.1205
NaN
NaN
Number of data:
35.000
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:
0.16330
-0.23340
NaN
NaN
St. deviation:
0.23091
0.51610
NaN
NaN
Maximum:
3.1000
6.1000
NaN
NaN
Minimum:
-8.2000
-4.4000
NaN
NaN
Number of data:
33600.
33600.
NaN
NaN
90Percentile:
0.40000
0.40000
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
25-FEB-2012 00:09:27
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20120130_103112_20120125_000000_20500101_000000
1
25-FEB-2012 00:09:27
LEVEL-1B_PROC_CONFIG
GOM_PR1_AXVIEC20110513_081743_20020301_000000_20500101_000000
1
25-FEB-2012 00:09:27
STAR_CATALOGUE
GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000
1
25-FEB-2012 00:09:27
STELLAR_SPECTRA_DATABANK
GOM_STS_AXVIEC20091111_151504_20020101_160000_20500101_000000
1
25-FEB-2012 00:09:27
ECMWF_FILE
AUX_ECF_AXNECM20120224_062114_20120224_210000_20120225_090000
1
25-FEB-2012 00:09:27
ECMWF_FILE
AUX_ECF_AXNECM20120224_181419_20120225_030000_20120225_150000
9
25-FEB-2012 04:54:45
ECMWF_FILE
AUX_ECA_AXNECM20120225_062112_20120224_210000_20120225_090000
12
25-FEB-2012 06:35:00
ECMWF_FILE
AUX_ECF_AXNECM20120225_062113_20120225_090000_20120225_210000
18
25-FEB-2012 10:10:54
ECMWF_FILE
AUX_ECF_AXNECM20120225_062113_20120225_150000_20120226_030000
24
25-FEB-2012 15:11:38
ECMWF_FILE
AUX_ECA_AXNECM20120225_181052_20120225_090000_20120225_210000
30
25-FEB-2012 20:12:22
ECMWF_FILE
AUX_ECF_AXNECM20120225_062114_20120225_210000_20120226_090000
32
25-FEB-2012 21:52:36
OPTIONAL_ECMWF_FILE
MISSING
1
25-FEB-2012 00:09:27
ORBIT_DATA_FILE
AUX_FPO_AXVPDS20120224_112114_20120223_193730_20120304_201058
1
25-FEB-2012 00:09:27