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GOMOS Daily Report 23-JUL-2008

GOMOS Daily Report 23-JUL-2008


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
25JUL2008 05:32:09
Data source version
GOMOS/5.00
Start time of products
QDS_YESTERDAY(/START)-1D (23JUL2008 00:00:00)
Stop time of products
QDS_YESTERDAY(/STOP)-1D (24JUL2008 00:00:00)
Store outputs in DB
Yes
Nb of level 1b prods
49
Nb of prods with errors
1

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
23-JUL-2008 01:27:03
The1Eri
157
33437
23-JUL-2008 14:10:52
1AlpUMi
49
33445

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_1PNPDE20080723_000320_000000412070_00317_33437_6193.N1
23-JUL-2008 00:03:20
Straylight
40.500
45
Alp Pav
1.9400
26000.
81
33437
No
2
GOM_TRA_1PNPDE20080723_001156_000000442070_00317_33437_6194.N1
23-JUL-2008 00:11:56
Bright
44.000
103
38Zet Sgr
2.6000
9700.0
88
33437
No
3
GOM_TRA_1PNPDE20080723_001421_000000382070_00317_33437_6195.N1
23-JUL-2008 00:14:21
Bright
38.000
155
41Pi Sgr
2.9000
6600.0
76
33437
No
4
GOM_TRA_1PNPDE20080723_002431_000000372070_00317_33437_6196.N1
23-JUL-2008 00:24:31
Bright
37.000
168
17Zet Aql
2.9860
11000.
74
33437
No
5
GOM_TRA_1PNPDE20080723_003134_000000352070_00317_33437_6197.N1
23-JUL-2008 00:31:34
Bright
35.000
5
3Alp Lyr
0.033000
11000.
70
33437
No
6
GOM_TRA_1PNPDE20080723_003509_000000382070_00317_33437_6198.N1
23-JUL-2008 00:35:09
Bright
38.000
69
33Gam Dra
2.2310
3800.0
76
33437
No
7
GOM_TRA_1PNPDE20080723_004608_000000362070_00317_33437_6199.N1
23-JUL-2008 00:46:08
Bright
35.500
49
1Alp UMi
1.9900
6300.0
71
33437
No
8
GOM_TRA_1PNPDE20080723_005841_000000392070_00317_33437_6200.N1
23-JUL-2008 00:58:41
Bright
39.000
6
13Alp Aur
0.080000
3400.0
78
33437
No
9
GOM_TRA_1PNPDE20080723_010235_000000532070_00317_33437_6201.N1
23-JUL-2008 01:02:35
Bright
53.000
114
3Iot Aur
2.6930
4600.0
106
33437
No
10
GOM_TRA_1PNPDE20080723_010752_000000522070_00317_33437_6202.N1
23-JUL-2008 01:07:52
Dark
52.000
13
87Alp Tau
0.86700
3800.0
104
33437
No
11
GOM_TRA_1PNPDE20080723_010958_000000362070_00317_33437_6203.N1
23-JUL-2008 01:09:58
Dark
36.000
27
24Gam Ori
1.6360
26000.
72
33437
No
12
GOM_TRA_1PNPDE20080723_011154_000000392070_00317_33437_6204.N1
23-JUL-2008 01:11:54
Dark
38.500
30
46Eps Ori
1.6940
30000.
77
33437
No
13
GOM_TRA_1PNPDE20080723_011411_000000412070_00317_33437_6205.N1
23-JUL-2008 01:14:11
Dark
40.500
7
19Bet Ori
0.10000
14000.
81
33437
No
14
GOM_TRA_1PNPDE20080723_011631_000000342070_00317_33437_6327.N1
23-JUL-2008 01:16:31
Dark
34.000
101
11Alp Lep
2.5820
7000.0
68
33437
Yes
15
GOM_TRA_1PNPDE20080723_013304_000000482070_00318_33438_6328.N1
23-JUL-2008 01:33:04
Dark
47.500
9
Alp Eri
0.45300
24000.
95
33438
No
16
GOM_TRA_1PNPDE20080723_013555_000000372070_00318_33438_6329.N1
23-JUL-2008 01:35:55
Dark
37.000
135
Bet Hyi
2.8200
5800.0
74
33438
No
17
GOM_TRA_1PNPDE20080723_014022_000000422070_00318_33438_6330.N1
23-JUL-2008 01:40:22
Straylight
41.500
148
Alp Tuc
2.8780
4100.0
83
33438
No
18
GOM_TRA_1PNPDE20080723_014356_000000402070_00318_33438_6331.N1
23-JUL-2008 01:43:56
Straylight
40.000
45
Alp Pav
1.9400
26000.
80
33438
No
19
GOM_TRA_1PNPDE20080723_015232_000000422070_00318_33438_6332.N1
23-JUL-2008 01:52:32
Bright
41.500
103
38Zet Sgr
2.6000
9700.0
83
33438
No
20
GOM_TRA_1PNPDE20080723_015457_000000382070_00318_33438_6333.N1
23-JUL-2008 01:54:57
Bright
37.500
155
41Pi Sgr
2.9000
6600.0
75
33438
No
21
GOM_TRA_1PNPDE20080723_020507_000000162070_00318_33438_6334.N1
23-JUL-2008 02:05:07
Twi_and_stray
16.000
168
17Zet Aql
2.9860
11000.
32
33438
No
22
GOM_TRA_1PNPDE20080723_021210_000000412070_00318_33438_6335.N1
23-JUL-2008 02:12:10
Bright
40.500
5
3Alp Lyr
0.033000
11000.
81
33438
No
23
GOM_TRA_1PNPDE20080723_021545_000000332070_00318_33438_6336.N1
23-JUL-2008 02:15:45
Bright
32.500
69
33Gam Dra
2.2310
3800.0
65
33438
No
24
GOM_TRA_1PNPDE20080723_022644_000000362070_00318_33438_6337.N1
23-JUL-2008 02:26:44
Bright
35.500
49
1Alp UMi
1.9900
6300.0
71
33438
No
25
GOM_TRA_1PNPDE20080723_023917_000000402070_00318_33438_6502.N1
23-JUL-2008 02:39:17
Bright
39.500
6
13Alp Aur
0.080000
3400.0
79
33438
No
26
GOM_TRA_1PNPDE20080723_024311_000000392070_00318_33438_6503.N1
23-JUL-2008 02:43:11
Bright
39.000
114
3Iot Aur
2.6930
4600.0
78
33438
No
27
GOM_TRA_1PNPDE20080723_024828_000000522070_00318_33438_6504.N1
23-JUL-2008 02:48:28
Dark
51.500
13
87Alp Tau
0.86700
3800.0
103
33438
No
28
GOM_TRA_1PNPDE20080723_025034_000000382070_00318_33438_6505.N1
23-JUL-2008 02:50:34
Dark
37.500
27
24Gam Ori
1.6360
26000.
75
33438
No
29
GOM_TRA_1PNPDE20080723_025230_000000392070_00318_33438_6506.N1
23-JUL-2008 02:52:30
Dark
38.500
30
46Eps Ori
1.6940
30000.
77
33438
No
30
GOM_TRA_1PNPDE20080723_025447_000000342070_00318_33438_6507.N1
23-JUL-2008 02:54:47
Dark
34.000
7
19Bet Ori
0.10000
14000.
68
33438
No
31
GOM_TRA_1PNPDE20080723_025707_000000332070_00318_33438_6508.N1
23-JUL-2008 02:57:07
Dark
33.000
101
11Alp Lep
2.5820
7000.0
66
33438
No
32
GOM_TRA_1PNPDE20080723_030743_000000442070_00318_33438_6509.N1
23-JUL-2008 03:07:43
Dark
43.500
157
The1Eri
2.9060
9300.0
87
33438
No
33
GOM_TRA_1PNPDE20080723_031341_000000452070_00319_33439_6510.N1
23-JUL-2008 03:13:41
Dark
45.000
9
Alp Eri
0.45300
24000.
90
33439
No
34
GOM_TRA_1PNPDE20080723_031631_000000372070_00319_33439_6511.N1
23-JUL-2008 03:16:31
Dark
37.000
135
Bet Hyi
2.8200
5800.0
74
33439
No
35
GOM_TRA_1PNPDE20080723_032058_000000402070_00319_33439_6512.N1
23-JUL-2008 03:20:58
Straylight
39.500
148
Alp Tuc
2.8780
4100.0
79
33439
No
36
GOM_TRA_1PNPDE20080723_032433_000000422070_00319_33439_6513.N1
23-JUL-2008 03:24:33
Straylight
41.500
45
Alp Pav
1.9400
26000.
83
33439
No
37
GOM_TRA_1PNPDE20080723_033308_000000402070_00319_33439_6514.N1
23-JUL-2008 03:33:08
Bright
39.500
103
38Zet Sgr
2.6000
9700.0
79
33439
No
38
GOM_TRA_1PNPDE20080723_033533_000000382070_00319_33439_6515.N1
23-JUL-2008 03:35:33
Bright
37.500
155
41Pi Sgr
2.9000
6600.0
75
33439
No
39
GOM_TRA_1PNPDE20080723_034543_000000372070_00319_33439_6516.N1
23-JUL-2008 03:45:43
Bright
37.000
168
17Zet Aql
2.9860
11000.
74
33439
No
40
GOM_TRA_1PNPDE20080723_035246_000000392070_00319_33439_6517.N1
23-JUL-2008 03:52:46
Bright
39.000
5
3Alp Lyr
0.033000
11000.
78
33439
No
41
GOM_TRA_1PNPDE20080723_035621_000000342070_00319_33439_6518.N1
23-JUL-2008 03:56:21
Bright
34.000
69
33Gam Dra
2.2310
3800.0
68
33439
No
42
GOM_TRA_1PNPDE20080723_040720_000000352070_00319_33439_6519.N1
23-JUL-2008 04:07:20
Bright
35.000
49
1Alp UMi
1.9900
6300.0
70
33439
No
43
GOM_TRA_1PNPDE20080723_041953_000000382070_00319_33439_6667.N1
23-JUL-2008 04:19:53
Bright
38.000
6
13Alp Aur
0.080000
3400.0
76
33439
No
44
GOM_TRA_1PNPDE20080723_042347_000000412070_00319_33439_6668.N1
23-JUL-2008 04:23:47
Bright
40.500
114
3Iot Aur
2.6930
4600.0
81
33439
No
45
GOM_TRA_1PNPDE20080723_042905_000000442070_00319_33439_6669.N1
23-JUL-2008 04:29:05
Dark
44.000
13
87Alp Tau
0.86700
3800.0
88
33439
No
46
GOM_TRA_1PNPDE20080723_043111_000000402070_00319_33439_6670.N1
23-JUL-2008 04:31:11
Dark
39.500
27
24Gam Ori
1.6360
26000.
79
33439
No
47
GOM_TRA_1PNPDE20080723_043306_000000342070_00319_33439_6671.N1
23-JUL-2008 04:33:06
Dark
33.500
30
46Eps Ori
1.6940
30000.
67
33439
No
48
GOM_TRA_1PNPDE20080723_043524_000000342070_00319_33439_6672.N1
23-JUL-2008 04:35:24
Dark
34.000
7
19Bet Ori
0.10000
14000.
68
33439
No
49
GOM_TRA_1PNPDE20080723_043743_000000362070_00319_33439_6673.N1
23-JUL-2008 04:37:43
Dark
35.500
101
11Alp Lep
2.5820
7000.0
71
33439
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 All products used the DSA observation for the DC computation

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:
16.6667 %
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:
17.525
18.117
NaN
St. deviation:
5.4916
4.7242
NaN
Maximum:
25.912
27.993
NaN
Minimum:
7.6601
5.3287
NaN
Number of data:
19.000
23.000
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:
0.029059
-1.3590
0.092500
-1.3749
St. deviation:
0.42241
0.56326
0.58957
0.72073
Maximum:
3.6000
2.2000
6.1000
5.1000
Minimum:
-3.2000
-5.6000
-5.8000
-6.5000
Number of data:
16750.
16750.
18950.
18950.

 

7.2.2 Trend of daily SATU NEA St. deviation since 1st April 2006 (dark limb)

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


 

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_AXNIEC20050627_150713_20030716_120000_20100101_000000
1
23-JUL-2008 00:03:20
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20080711_132227_20080708_000000_20100101_000000
1
23-JUL-2008 00:03:20
LEVEL-1B_PROC_CONFIG
GOM_PR1_AXNIEC20050627_151042_20020301_000000_20100101_000000
1
23-JUL-2008 00:03:20
STAR_CATALOGUE
GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000
1
23-JUL-2008 00:03:20
STELLAR_SPECTRA_DATABANK
GOM_STS_AXNIEC20040308_103538_20020101_160000_20100101_000000
1
23-JUL-2008 00:03:20
ECMWF_FILE
AUX_ECF_AXNECM20080722_072113_20080722_210000_20080723_090000
1
23-JUL-2008 00:03:20
ECMWF_FILE
AUX_ECF_AXNECM20080722_190113_20080723_030000_20080723_150000
43
23-JUL-2008 04:19:53
OPTIONAL_ECMWF_FILE
MISSING
1
23-JUL-2008 00:03:20
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20080722_215103_000060572070_00315_33435_6002.N1
1
23-JUL-2008 00:03:20
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20080722_233200_000057382070_00316_33436_6003.N1
14
23-JUL-2008 01:16:31
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20080723_011257_000044632070_00317_33437_6004.N1
25
23-JUL-2008 02:39:17
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20080723_023239_000054192070_00318_33438_6005.N1
43
23-JUL-2008 04:19:53

Reports
Daily Report Level 2 Dataset IPF v6.01
Daily Reports of NRT data
Data Anomaly Reports
Instrument Anomaly Reports
Monthly Reports
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24-Apr-2008