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GOMOS Daily Report 23-NOV-2008

GOMOS Daily Report 23-NOV-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
25NOV2008 05:33:53
Data source version
GOMOS/5.00
Start time of products
23NOV2008 03:13:56
Stop time of products
23NOV2008 22:59:38
Store outputs in DB
Yes
Nb of level 1b prods
50
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_1PNPDE20081123_031356_000000462074_00075_35199_6845.N1
23-NOV-2008 03:13:56
Bright
46.000
174
52Psi UMa
3.0040
4400.0
92
35199
No
2
GOM_TRA_1PNPDE20081123_032336_000000572074_00075_35199_6846.N1
23-NOV-2008 03:23:36
Bright
57.000
96
68Del Leo
2.5600
9300.0
114
35199
No
3
GOM_TRA_1PNPDE20081123_032642_000001092074_00075_35199_6847.N1
23-NOV-2008 03:26:42
Twi_and_stray
109.00
51
41Gam1Leo
2.0100
4500.0
218
35199
No
4
GOM_TRA_1PNPDE20081123_035412_000000552074_00076_35200_6848.N1
23-NOV-2008 03:54:12
Dark
54.500
70
Zet Pup
2.2460
39000.
109
35200
No
5
GOM_TRA_1PNPDE20081123_035800_000000612074_00076_35200_6849.N1
23-NOV-2008 03:58:00
Dark
60.500
117
Pi Pup
2.7060
3800.0
121
35200
No
6
GOM_TRA_1PNPDE20081123_040201_000000732074_00076_35200_6850.N1
23-NOV-2008 04:02:01
Dark
73.000
23
21Eps CMa
1.5020
26000.
146
35200
No
7
GOM_TRA_1PNPDE20081123_040419_000000842074_00076_35200_6851.N1
23-NOV-2008 04:04:19
Straylight
84.000
179
24Omi2CMa
3.0320
24000.
168
35200
No
8
GOM_TRA_1PNPDE20081123_040938_000000502074_00076_35200_6852.N1
23-NOV-2008 04:09:38
Straylight
50.000
1
9Alp CMa
-1.4400
11000.
100
35200
No
9
GOM_TRA_1PNPDE20081123_041348_000000692074_00076_35200_6853.N1
23-NOV-2008 04:13:48
Straylight
69.000
7
19Bet Ori
0.10000
14000.
138
35200
No
10
GOM_TRA_1PNPDE20081123_041734_000000772074_00076_35200_6854.N1
23-NOV-2008 04:17:34
Twi_and_stray
76.500
30
46Eps Ori
1.6940
30000.
153
35200
No
11
GOM_TRA_1PNPDE20081123_042223_000000562074_00076_35200_6855.N1
23-NOV-2008 04:22:23
Bright
56.000
13
87Alp Tau
0.86700
3800.0
112
35200
No
12
GOM_TRA_1PNPDE20081123_042846_000000512074_00076_35200_6856.N1
23-NOV-2008 04:28:46
Bright
51.000
114
3Iot Aur
2.6930
4600.0
102
35200
No
13
GOM_TRA_1PNPDE20081123_043312_000000542074_00076_35200_6857.N1
23-NOV-2008 04:33:12
Bright
54.000
6
13Alp Aur
0.080000
3400.0
108
35200
No
14
GOM_TRA_1PNPDE20081123_043536_000000562074_00076_35200_6858.N1
23-NOV-2008 04:35:36
Bright
55.500
42
34Bet Aur
1.9000
10200.
111
35200
No
15
GOM_TRA_1PNPDE20081123_045431_000000492074_00076_35200_7334.N1
23-NOV-2008 04:54:31
Bright
49.000
174
52Psi UMa
3.0040
4400.0
98
35200
No
16
GOM_TRA_1PNPDE20081123_050413_000000562074_00076_35200_7335.N1
23-NOV-2008 05:04:13
Bright
56.000
96
68Del Leo
2.5600
9300.0
112
35200
No
17
GOM_TRA_1PNPDE20081123_050720_000001192074_00076_35200_7336.N1
23-NOV-2008 05:07:20
Twi_and_stray
119.00
51
41Gam1Leo
2.0100
4500.0
238
35200
No
18
GOM_TRA_1PNPDE20081123_053450_000000552074_00077_35201_7337.N1
23-NOV-2008 05:34:50
Dark
55.000
70
Zet Pup
2.2460
39000.
110
35201
No
19
GOM_TRA_1PNPDE20081123_053837_000000642074_00077_35201_7338.N1
23-NOV-2008 05:38:37
Dark
64.000
117
Pi Pup
2.7060
3800.0
128
35201
No
20
GOM_TRA_1PNPDE20081123_054238_000000722074_00077_35201_7339.N1
23-NOV-2008 05:42:38
Dark
71.500
23
21Eps CMa
1.5020
26000.
143
35201
No
21
GOM_TRA_1PNPDE20081123_054456_000000832074_00077_35201_7340.N1
23-NOV-2008 05:44:56
Straylight
83.000
179
24Omi2CMa
3.0320
24000.
166
35201
No
22
GOM_TRA_1PNPDE20081123_055014_000000502074_00077_35201_7341.N1
23-NOV-2008 05:50:14
Straylight
50.000
1
9Alp CMa
-1.4400
11000.
100
35201
No
23
GOM_TRA_1PNPDE20081123_055424_000000672074_00077_35201_7342.N1
23-NOV-2008 05:54:24
Straylight
66.500
7
19Bet Ori
0.10000
14000.
133
35201
No
24
GOM_TRA_1PNPDE20081123_055809_000000772074_00077_35201_7343.N1
23-NOV-2008 05:58:09
Twi_and_stray
76.500
30
46Eps Ori
1.6940
30000.
153
35201
No
25
GOM_TRA_1PNPDE20081123_060258_000000562074_00077_35201_7344.N1
23-NOV-2008 06:02:58
Bright
55.500
13
87Alp Tau
0.86700
3800.0
111
35201
No
26
GOM_TRA_1PNPDE20081123_060921_000000512074_00077_35201_7345.N1
23-NOV-2008 06:09:21
Bright
50.500
114
3Iot Aur
2.6930
4600.0
101
35201
No
27
GOM_TRA_1PNPDE20081123_061347_000000502074_00077_35201_7346.N1
23-NOV-2008 06:13:47
Bright
50.000
6
13Alp Aur
0.080000
3400.0
100
35201
No
28
GOM_TRA_1PNPDE20081123_061611_000000572074_00077_35201_7347.N1
23-NOV-2008 06:16:11
Bright
57.000
42
34Bet Aur
1.9000
10200.
114
35201
No
29
GOM_TRA_1PNPDE20081123_204810_000000752074_00086_35210_7800.N1
23-NOV-2008 20:48:10
Dark
74.500
23
21Eps CMa
1.5020
26000.
149
35210
No
30
GOM_TRA_1PNPDE20081123_205027_000000852074_00086_35210_7801.N1
23-NOV-2008 20:50:27
Straylight
84.500
179
24Omi2CMa
3.0320
24000.
169
35210
No
31
GOM_TRA_1PNPDE20081123_205539_000000722074_00086_35210_7802.N1
23-NOV-2008 20:55:39
Straylight
72.000
1
9Alp CMa
-1.4400
11000.
144
35210
No
32
GOM_TRA_1PNPDE20081123_205946_000000632074_00086_35210_7803.N1
23-NOV-2008 20:59:46
Straylight
63.000
7
19Bet Ori
0.10000
14000.
126
35210
No
33
GOM_TRA_1PNPDE20081123_210326_000000762074_00086_35210_7804.N1
23-NOV-2008 21:03:26
Twi_and_stray
75.500
30
46Eps Ori
1.6940
30000.
151
35210
No
34
GOM_TRA_1PNPDE20081123_210817_000000562074_00086_35210_7805.N1
23-NOV-2008 21:08:17
Bright
56.000
13
87Alp Tau
0.86700
3800.0
112
35210
No
35
GOM_TRA_1PNPDE20081123_211437_000000512074_00086_35210_7806.N1
23-NOV-2008 21:14:37
Bright
51.000
114
3Iot Aur
2.6930
4600.0
102
35210
No
36
GOM_TRA_1PNPDE20081123_211903_000000522074_00086_35210_7807.N1
23-NOV-2008 21:19:03
Bright
52.000
6
13Alp Aur
0.080000
3400.0
104
35210
No
37
GOM_TRA_1PNPDE20081123_212124_000000572074_00086_35210_7808.N1
23-NOV-2008 21:21:24
Bright
56.500
42
34Bet Aur
1.9000
10200.
113
35210
No
38
GOM_TRA_1PNPDE20081123_214029_000000492074_00086_35210_7809.N1
23-NOV-2008 21:40:29
Bright
48.500
174
52Psi UMa
3.0040
4400.0
97
35210
No
39
GOM_TRA_1PNPDE20081123_215018_000000582074_00086_35210_7810.N1
23-NOV-2008 21:50:18
Bright
58.000
96
68Del Leo
2.5600
9300.0
116
35210
No
40
GOM_TRA_1PNPDE20081123_215334_000001232074_00086_35210_7811.N1
23-NOV-2008 21:53:34
Twi_and_stray
122.50
51
41Gam1Leo
2.0100
4500.0
245
35210
No
41
GOM_TRA_1PNPDE20081123_222101_000000542074_00087_35211_7974.N1
23-NOV-2008 22:21:01
Dark
54.000
70
Zet Pup
2.2460
39000.
108
35211
No
42
GOM_TRA_1PNPDE20081123_222446_000000652074_00087_35211_7975.N1
23-NOV-2008 22:24:46
Dark
65.000
117
Pi Pup
2.7060
3800.0
130
35211
No
43
GOM_TRA_1PNPDE20081123_222846_000000732074_00087_35211_7976.N1
23-NOV-2008 22:28:46
Dark
73.000
23
21Eps CMa
1.5020
26000.
146
35211
No
44
GOM_TRA_1PNPDE20081123_223104_000000832074_00087_35211_7977.N1
23-NOV-2008 22:31:04
Straylight
82.500
179
24Omi2CMa
3.0320
24000.
165
35211
No
45
GOM_TRA_1PNPDE20081123_223615_000000722074_00087_35211_7978.N1
23-NOV-2008 22:36:15
Straylight
72.000
1
9Alp CMa
-1.4400
11000.
144
35211
No
46
GOM_TRA_1PNPDE20081123_224021_000000682074_00087_35211_7979.N1
23-NOV-2008 22:40:21
Straylight
68.000
7
19Bet Ori
0.10000
14000.
136
35211
No
47
GOM_TRA_1PNPDE20081123_224401_000000762074_00087_35211_7980.N1
23-NOV-2008 22:44:01
Twi_and_stray
76.000
30
46Eps Ori
1.6940
30000.
152
35211
No
48
GOM_TRA_1PNPDE20081123_224852_000000572074_00087_35211_7981.N1
23-NOV-2008 22:48:52
Bright
57.000
13
87Alp Tau
0.86700
3800.0
114
35211
No
49
GOM_TRA_1PNPDE20081123_225512_000000512074_00087_35211_7982.N1
23-NOV-2008 22:55:12
Bright
51.000
114
3Iot Aur
2.6930
4600.0
102
35211
No
50
GOM_TRA_1PNPDE20081123_225938_000000502074_00087_35211_7983.N1
23-NOV-2008 22:59:38
Bright
50.000
6
13Alp Aur
0.080000
3400.0
100
35211
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_1PNPDE20081123_204810_000000752074_00086_35210_7800.N1
DC map used
GOM_TRA_1PNPDE20081123_205027_000000852074_00086_35210_7801.N1
DC map used
GOM_TRA_1PNPDE20081123_205539_000000722074_00086_35210_7802.N1
DC map used
GOM_TRA_1PNPDE20081123_205946_000000632074_00086_35210_7803.N1
DC map used
GOM_TRA_1PNPDE20081123_210326_000000762074_00086_35210_7804.N1
DC map used
GOM_TRA_1PNPDE20081123_210817_000000562074_00086_35210_7805.N1
DC map used
GOM_TRA_1PNPDE20081123_211437_000000512074_00086_35210_7806.N1
DC map used
GOM_TRA_1PNPDE20081123_211903_000000522074_00086_35210_7807.N1
DC map used
GOM_TRA_1PNPDE20081123_212124_000000572074_00086_35210_7808.N1
DC map used
GOM_TRA_1PNPDE20081123_214029_000000492074_00086_35210_7809.N1
DC map used
GOM_TRA_1PNPDE20081123_215018_000000582074_00086_35210_7810.N1
DC map used
GOM_TRA_1PNPDE20081123_215334_000001232074_00086_35210_7811.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:
42.0000 %
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:
15.620
18.454
NaN
St. deviation:
3.0707
3.5336
NaN
Maximum:
20.242
23.433
NaN
Minimum:
11.888
11.311
NaN
Number of data:
10.000
21.000
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:
0.36318
-1.0594
0.38657
-1.1064
St. deviation:
0.55897
1.1263
0.54930
0.92822
Maximum:
3.6000
3.6000
4.2000
3.6000
Minimum:
-3.0000
-6.9000
-3.2000
-6.0000
Number of data:
14100.
14100.
25700.
25700.

 

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-NOV-2008 03:13:56
CALIBRATION_DATABASE
GOM_CAL_AXVIEC20081117_091129_20081115_000000_20100101_000000
1
23-NOV-2008 03:13:56
LEVEL-1B_PROC_CONFIG
GOM_PR1_AXNIEC20050627_151042_20020301_000000_20100101_000000
1
23-NOV-2008 03:13:56
STAR_CATALOGUE
GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000
1
23-NOV-2008 03:13:56
STELLAR_SPECTRA_DATABANK
GOM_STS_AXNIEC20040308_103538_20020101_160000_20100101_000000
1
23-NOV-2008 03:13:56
ECMWF_FILE
AUX_ECF_AXNECM20081122_190114_20081123_030000_20081123_150000
1
23-NOV-2008 03:13:56
ECMWF_FILE
AUX_ECF_AXNECM20081123_072110_20081123_150000_20081124_030000
29
23-NOV-2008 20:48:10
ECMWF_FILE
AUX_ECF_AXNECM20081123_072110_20081123_210000_20081124_090000
41
23-NOV-2008 22:21:01
OPTIONAL_ECMWF_FILE
MISSING
1
23-NOV-2008 03:13:56
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20081123_014527_000041442074_00074_35198_6824.N1
1
23-NOV-2008 03:13:56
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20081123_025950_000057382074_00075_35199_6825.N1
15
23-NOV-2008 04:54:31
ORBIT_DATA_FILE
DOR_NAV_0PNPDE20081123_204228_000041442074_00086_35210_6827.N1
29
23-NOV-2008 20:48:10

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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