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GOMOS Daily Report 11-JUN-2008

GOMOS Daily Report 11-JUN-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
13JUN2008 05:32:29
Data source version
GOMOS/5.00
Start time of products
QDS_YESTERDAY(/START)-1D (11JUN2008 00:00:00)
Stop time of products
QDS_YESTERDAY(/STOP)-1D (12JUN2008 00:00:00)
Store outputs in DB
Yes
Nb of level 1b prods
49
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

Nr Filename UTC Start time Limb Duration Star Id Star Name Star Mag Star Temp Nb Meas Orbit Prod. error
1
GOM_TRA_1PNPDE20080611_000622_000000422069_00216_32835_7391.N1
11-JUN-2008 00:06:22
Dark
41.500
84
Alp Phe
2.3970
4500.0
83
32835
No
2
GOM_TRA_1PNPDE20080611_001222_000000512069_00217_32836_7392.N1
11-JUN-2008 00:12:22
Dark
51.000
63
Bet Gru
2.1500
2800.0
102
32836
No
3
GOM_TRA_1PNPDE20080611_001423_000000482069_00217_32836_7393.N1
11-JUN-2008 00:14:23
Dark
47.500
31
Alp Gru
1.7340
15200.
95
32836
No
4
GOM_TRA_1PNPDE20080611_001554_000000562069_00217_32836_7394.N1
11-JUN-2008 00:15:54
Straylight
56.000
172
Gam Gru
3.0030
13100.
112
32836
No
5
GOM_TRA_1PNPDE20080611_001837_000000412069_00217_32836_7395.N1
11-JUN-2008 00:18:37
Straylight
40.500
45
Alp Pav
1.9400
26000.
81
32836
No
6
GOM_TRA_1PNPDE20080611_002705_000000432069_00217_32836_7396.N1
11-JUN-2008 00:27:05
Straylight
43.000
40
The Sco
1.8590
7100.0
86
32836
No
7
GOM_TRA_1PNPDE20080611_002850_000000432069_00217_32836_7397.N1
11-JUN-2008 00:28:50
Twi_and_stray
43.000
25
35Lam Sco
1.6200
28000.
86
32836
No
8
GOM_TRA_1PNPDE20080611_003029_000000742069_00217_32836_7398.N1
11-JUN-2008 00:30:29
Bright
73.500
57
34Sig Sgr
2.0660
26000.
147
32836
No
9
GOM_TRA_1PNPDE20080611_003537_000000412069_00217_32836_7399.N1
11-JUN-2008 00:35:37
Bright
40.500
86
35Eta Oph
2.4300
10200.
81
32836
No
10
GOM_TRA_1PNPDE20080611_003723_000000382069_00217_32836_7400.N1
11-JUN-2008 00:37:23
Bright
38.000
98
13Zet Oph
2.5710
30000.
76
32836
No
11
GOM_TRA_1PNPDE20080611_004237_000000462069_00217_32836_7401.N1
11-JUN-2008 00:42:37
Bright
46.000
126
60Bet Oph
2.7700
4250.0
92
32836
No
12
GOM_TRA_1PNPDE20080611_004514_000000472069_00217_32836_7402.N1
11-JUN-2008 00:45:14
Bright
47.000
59
55Alp Oph
2.0800
8900.0
94
32836
No
13
GOM_TRA_1PNPDE20080611_004656_000000362069_00217_32836_7403.N1
11-JUN-2008 00:46:56
Bright
36.000
127
27Bet Her
2.7810
4700.0
72
32836
No
14
GOM_TRA_1PNPDE20080611_005005_000000402069_00217_32836_7404.N1
11-JUN-2008 00:50:05
Bright
40.000
133
40Zet Her
2.8070
6000.0
80
32836
No
15
GOM_TRA_1PNPDE20080611_005707_000000392069_00217_32836_7405.N1
11-JUN-2008 00:57:07
Bright
39.000
130
23Bet Dra
2.7990
5800.0
78
32836
No
16
GOM_TRA_1PNPDE20080611_010747_000000462069_00217_32836_7406.N1
11-JUN-2008 01:07:47
Bright
46.000
89
5Alp Cep
2.4510
8000.0
92
32836
No
17
GOM_TRA_1PNPDE20080611_011401_000000372069_00217_32836_7407.N1
11-JUN-2008 01:14:01
Bright
37.000
76
27Gam Cas
2.3000
30000.
74
32836
No
18
GOM_TRA_1PNPDE20080611_011958_000000392069_00217_32836_7408.N1
11-JUN-2008 01:19:58
Bright
38.500
73
57Gam1And
2.2600
13100.
77
32836
No
19
GOM_TRA_1PNPDE20080611_012218_000000552069_00217_32836_7409.N1
11-JUN-2008 01:22:18
Twi_and_stray
54.500
53
43Bet And
2.0480
3300.0
109
32836
No
20
GOM_TRA_1PNPDE20080611_012538_000000472069_00217_32836_7410.N1
11-JUN-2008 01:25:38
Twilight
47.000
50
13Alp Ari
2.0070
4250.0
94
32836
No
21
GOM_TRA_1PNPDE20080611_014033_000000522069_00217_32836_7462.N1
11-JUN-2008 01:40:33
Dark
51.500
52
16Bet Cet
2.0370
4500.0
103
32836
No
22
GOM_TRA_1PNPDE20080611_014659_000000442069_00217_32836_7463.N1
11-JUN-2008 01:46:59
Dark
43.500
84
Alp Phe
2.3970
4500.0
87
32836
No
23
GOM_TRA_1PNPDE20080611_015258_000000502069_00218_32837_7464.N1
11-JUN-2008 01:52:58
Dark
50.000
63
Bet Gru
2.1500
2800.0
100
32837
No
24
GOM_TRA_1PNPDE20080611_015500_000000512069_00218_32837_7465.N1
11-JUN-2008 01:55:00
Dark
51.000
31
Alp Gru
1.7340
15200.
102
32837
No
25
GOM_TRA_1PNPDE20080611_015632_000000582069_00218_32837_7466.N1
11-JUN-2008 01:56:32
Straylight
58.000
172
Gam Gru
3.0030
13100.
116
32837
No
26
GOM_TRA_1PNPDE20080611_015913_000000422069_00218_32837_7467.N1
11-JUN-2008 01:59:13
Straylight
41.500
45
Alp Pav
1.9400
26000.
83
32837
No
27
GOM_TRA_1PNPDE20080611_020744_000000462069_00218_32837_7468.N1
11-JUN-2008 02:07:44
Straylight
45.500
40
The Sco
1.8590
7100.0
91
32837
No
28
GOM_TRA_1PNPDE20080611_020926_000000432069_00218_32837_7469.N1
11-JUN-2008 02:09:26
Twi_and_stray
43.000
25
35Lam Sco
1.6200
28000.
86
32837
No
29
GOM_TRA_1PNPDE20080611_021106_000000692069_00218_32837_7470.N1
11-JUN-2008 02:11:06
Bright
68.500
57
34Sig Sgr
2.0660
26000.
137
32837
No
30
GOM_TRA_1PNPDE20080611_021614_000000402069_00218_32837_7471.N1
11-JUN-2008 02:16:14
Bright
40.000
86
35Eta Oph
2.4300
10200.
80
32837
No
31
GOM_TRA_1PNPDE20080611_021759_000000382069_00218_32837_7472.N1
11-JUN-2008 02:17:59
Bright
38.000
98
13Zet Oph
2.5710
30000.
76
32837
No
32
GOM_TRA_1PNPDE20080611_022313_000000462069_00218_32837_7473.N1
11-JUN-2008 02:23:13
Bright
46.000
126
60Bet Oph
2.7700
4250.0
92
32837
No
33
GOM_TRA_1PNPDE20080611_022549_000000462069_00218_32837_7474.N1
11-JUN-2008 02:25:49
Bright
46.000
59
55Alp Oph
2.0800
8900.0
92
32837
No
34
GOM_TRA_1PNPDE20080611_022732_000000392069_00218_32837_7475.N1
11-JUN-2008 02:27:32
Bright
38.500
127
27Bet Her
2.7810
4700.0
77
32837
No
35
GOM_TRA_1PNPDE20080611_023040_000000402069_00218_32837_7476.N1
11-JUN-2008 02:30:40
Bright
39.500
133
40Zet Her
2.8070
6000.0
79
32837
No
36
GOM_TRA_1PNPDE20080611_023742_000000402069_00218_32837_7477.N1
11-JUN-2008 02:37:42
Bright
39.500
130
23Bet Dra
2.7990
5800.0
79
32837
No
37
GOM_TRA_1PNPDE20080611_024823_000000472069_00218_32837_7478.N1
11-JUN-2008 02:48:23
Bright
47.000
89
5Alp Cep
2.4510
8000.0
94
32837
No
38
GOM_TRA_1PNPDE20080611_025436_000000582069_00218_32837_7552.N1
11-JUN-2008 02:54:36
Bright
58.000
76
27Gam Cas
2.3000
30000.
116
32837
No
39
GOM_TRA_1PNPDE20080611_030034_000000392069_00218_32837_7553.N1
11-JUN-2008 03:00:34
Bright
38.500
73
57Gam1And
2.2600
13100.
77
32837
No
40
GOM_TRA_1PNPDE20080611_030254_000000572069_00218_32837_7554.N1
11-JUN-2008 03:02:54
Twi_and_stray
56.500
53
43Bet And
2.0480
3300.0
113
32837
No
41
GOM_TRA_1PNPDE20080611_030614_000000472069_00218_32837_7555.N1
11-JUN-2008 03:06:14
Twilight
47.000
50
13Alp Ari
2.0070
4250.0
94
32837
No
42
GOM_TRA_1PNPDE20080611_032109_000000512069_00218_32837_7556.N1
11-JUN-2008 03:21:09
Dark
51.000
52
16Bet Cet
2.0370
4500.0
102
32837
No
43
GOM_TRA_1PNPDE20080611_032735_000000462069_00218_32837_7557.N1
11-JUN-2008 03:27:35
Dark
45.500
84
Alp Phe
2.3970
4500.0
91
32837
No
44
GOM_TRA_1PNPDE20080611_033335_000000512069_00219_32838_7558.N1
11-JUN-2008 03:33:35
Dark
50.500
63
Bet Gru
2.1500
2800.0
101
32838
No
45
GOM_TRA_1PNPDE20080611_033537_000000492069_00219_32838_7559.N1
11-JUN-2008 03:35:37
Dark
48.500
31
Alp Gru
1.7340
15200.
97
32838
No
46
GOM_TRA_1PNPDE20080611_033709_000000562069_00219_32838_7560.N1
11-JUN-2008 03:37:09
Straylight
56.000
172
Gam Gru
3.0030
13100.
112
32838
No
47
GOM_TRA_1PNPDE20080611_033950_000000452069_00219_32838_7561.N1
11-JUN-2008 03:39:50
Straylight
45.000
45
Alp Pav
1.9400
26000.
90
32838
No
48
GOM_TRA_1PNPDE20080611_035002_000000412069_00219_32838_7562.N1
11-JUN-2008 03:50:02
Twi_and_stray
40.500
25
35Lam Sco
1.6200
28000.
81
32838
No
49
GOM_TRA_1PNPDE20080611_035142_000000562069_00219_32838_7563.N1
11-JUN-2008 03:51:42
Bright
56.000
57
34Sig Sgr
2.0660
26000.
112
32838
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:
28.5714 %
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:
15.649
18.992
10.270
St. deviation:
2.2309
5.8975
0.079359
Maximum:
19.142
26.168
10.326
Minimum:
13.347
3.6892
10.214
Number of data:
11.000
23.000
2.0000

 

6.2 Plot for DARK limb products

qds_image


 

6.3 Plot for BRIGHT limb products

qds_image


 

6.3 Plot for TWILIGHT 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:
0.23897
-1.2580
0.30611
-1.1853
St. deviation:
0.36603
0.72158
0.82057
1.3046
Maximum:
9.2000
4.0000
5.1000
4.1000
Minimum:
-3.5000
-4.9000
-3.8000
-6.7000
Number of data:
11900.
11900.
22650.
22650.

 

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
11-JUN-2008 00:06:22
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20080609_083139_20080607_000000_20100101_000000
1
11-JUN-2008 00:06:22
LEVEL-1B_PROC_CONFIG
GOM_PR1_AXNIEC20050627_151042_20020301_000000_20100101_000000
1
11-JUN-2008 00:06:22
STAR_CATALOGUE
GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000
1
11-JUN-2008 00:06:22
STELLAR_SPECTRA_DATABANK
GOM_STS_AXNIEC20040308_103538_20020101_160000_20100101_000000
1
11-JUN-2008 00:06:22
ECMWF_FILE
AUX_ECF_AXNECM20080610_072114_20080610_210000_20080611_090000
1
11-JUN-2008 00:06:22
OPTIONAL_ECMWF_FILE
MISSING
1
11-JUN-2008 00:06:22
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20080610_221214_000057382069_00215_32834_5711.N1
1
11-JUN-2008 00:06:22
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20080610_235311_000057382069_00216_32835_5712.N1
21
11-JUN-2008 01:40:33
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20080611_013408_000044632069_00217_32836_5713.N1
38
11-JUN-2008 02:54:36

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