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GOMOS Daily Report 14-SEP-2004

GOMOS Daily Report 14-SEP-2004


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 actual month (see template here)
2.2 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.Statistics on SATU Noise Equivalent Angle

 


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
17SEP2004 09:43:22
Data source version
GOMOS/4.02
Start time of products
QDS_TODAY(/START)-3D (14SEP2004 00:00:00)
Stop time of products
QDS_TODAY(/STOP)-3D (15SEP2004 00:00:00)
Store outputs flag
1
Nb of level 1b prods
50
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 Summary of processed GOM_TRA_1P products

Filename UTC Start time Limb Duration Star Id Star Name Star Mag Star Temp Nb Meas Orbit Prod. error
GOM_TRA_1PNPDE20040914_000039_000000682030_00202_13282_0027.N1
14-SEP-2004 00:00:39
Bright
68.000
35
33Alp Per
1.7950
6250.0
136
13282
No
GOM_TRA_1PNPDE20040914_000425_000000402030_00202_13282_0028.N1
14-SEP-2004 00:04:25
Bright
40.000
36
50Alp UMa
1.8000
6300.0
80
13282
No
GOM_TRA_1PNPDE20040914_002822_000001282030_00202_13282_0000.N1
14-SEP-2004 00:28:22
Dark
127.50
14
58Alp Ori
0.87000
3000.0
255
13282
Yes
GOM_TRA_1PNPDE20040914_003205_000000602030_00202_13282_0001.N1
14-SEP-2004 00:32:05
Dark
60.000
1
9Alp CMa
-1.4400
11000.
120
13282
No
GOM_TRA_1PNPDE20040914_003354_000000602030_00202_13282_0002.N1
14-SEP-2004 00:33:54
Dark
59.500
47
2Bet CMa
1.9760
28000.
119
13282
No
GOM_TRA_1PNPDE20040914_003756_000000412030_00202_13282_0003.N1
14-SEP-2004 00:37:56
Dark
41.000
46
Del Vel
1.9540
10600.
82
13282
No
GOM_TRA_1PNPDE20040914_003925_000000512030_00202_13282_0004.N1
14-SEP-2004 00:39:25
Dark
50.500
161
Tau Pup
2.9310
4500.0
101
13282
No
GOM_TRA_1PNPDE20040914_004041_000000562030_00203_13283_0005.N1
14-SEP-2004 00:40:41
Dark
56.000
2
Alp Car
-0.73600
7000.0
112
13283
No
GOM_TRA_1PNPDE20040914_005004_000000392030_00203_13283_0006.N1
14-SEP-2004 00:50:04
Dark
38.500
135
Bet Hyi
2.8200
5800.0
77
13283
No
GOM_TRA_1PNPDE20040914_005226_000000482030_00203_13283_0007.N1
14-SEP-2004 00:52:26
Dark
48.000
9
Alp Eri
0.45300
24000.
96
13283
No
GOM_TRA_1PNPDE20040914_005537_000000412030_00203_13283_0008.N1
14-SEP-2004 00:55:37
Dark
41.000
148
Alp Tuc
2.8780
4100.0
82
13283
No
GOM_TRA_1PNPDE20040914_005920_000000422030_00203_13283_0009.N1
14-SEP-2004 00:59:20
Twilight
42.000
31
Alp Gru
1.7340
15200.
84
13283
No
GOM_TRA_1PNPDE20040914_010207_000000402030_00203_13283_0010.N1
14-SEP-2004 01:02:07
Bright
40.000
172
Gam Gru
3.0030
13100.
80
13283
No
GOM_TRA_1PNPDE20040914_010331_000000492030_00203_13283_0011.N1
14-SEP-2004 01:03:31
Bright
48.500
18
24Alp PsA
1.1660
9700.0
97
13283
No
GOM_TRA_1PNPDE20040914_010600_000000642030_00203_13283_0012.N1
14-SEP-2004 01:06:00
Bright
63.500
52
16Bet Cet
2.0370
4500.0
127
13283
No
GOM_TRA_1PNPDE20040914_010803_000000392030_00203_13283_0013.N1
14-SEP-2004 01:08:03
Bright
39.000
142
49Del Cap
2.8500
8900.0
78
13283
No
GOM_TRA_1PNPDE20040914_011218_000000402030_00203_13283_0014.N1
14-SEP-2004 01:12:18
Bright
40.000
162
34Alp Aqr
2.9440
5350.0
80
13283
No
GOM_TRA_1PNPDE20040914_011518_000000392030_00203_13283_0015.N1
14-SEP-2004 01:15:18
Bright
39.000
61
8Eps Peg
2.1000
3900.0
78
13283
No
GOM_TRA_1PNPDE20040914_011658_000000442030_00203_13283_0016.N1
14-SEP-2004 01:16:58
Bright
43.500
90
54Alp Peg
2.4870
11000.
87
13283
No
GOM_TRA_1PNPDE20040914_011840_000000522030_00203_13283_0017.N1
14-SEP-2004 01:18:40
Bright
51.500
140
88Gam Peg
2.8340
26000.
103
13283
No
GOM_TRA_1PNPDE20040914_012053_000000462030_00203_13283_0018.N1
14-SEP-2004 01:20:53
Bright
46.000
93
53Bet Peg
2.5200
3100.0
92
13283
No
GOM_TRA_1PNPDE20040914_012232_000000402030_00203_13283_0019.N1
14-SEP-2004 01:22:32
Bright
39.500
92
53Eps Cyg
2.5000
4500.0
79
13283
No
GOM_TRA_1PNPDE20040914_012439_000000372030_00203_13283_0020.N1
14-SEP-2004 01:24:39
Bright
37.000
66
37Gam Cyg
2.2080
5900.0
74
13283
No
GOM_TRA_1PNPDE20040914_012646_000000382030_00203_13283_0021.N1
14-SEP-2004 01:26:46
Bright
38.000
144
18Del Cyg
2.8600
11000.
76
13283
No
GOM_TRA_1PNPDE20040914_013005_000000392030_00203_13283_0022.N1
14-SEP-2004 01:30:05
Bright
38.500
89
5Alp Cep
2.4510
8000.0
77
13283
No
GOM_TRA_1PNPDE20040914_020347_000000612030_00203_13283_0000.N1
14-SEP-2004 02:03:47
Twilight
61.000
8
10Alp CMi
0.40000
6500.0
122
13283
No
GOM_TRA_1PNPDE20040914_020900_000001232030_00203_13283_0001.N1
14-SEP-2004 02:09:00
Dark
123.00
14
58Alp Ori
0.87000
3000.0
246
13283
No
GOM_TRA_1PNPDE20040914_021242_000000582030_00203_13283_0002.N1
14-SEP-2004 02:12:42
Dark
58.000
1
9Alp CMa
-1.4400
11000.
116
13283
No
GOM_TRA_1PNPDE20040914_021430_000000602030_00203_13283_0003.N1
14-SEP-2004 02:14:30
Dark
60.000
47
2Bet CMa
1.9760
28000.
120
13283
No
GOM_TRA_1PNPDE20040914_021832_000000382030_00203_13283_0004.N1
14-SEP-2004 02:18:32
Dark
38.000
46
Del Vel
1.9540
10600.
76
13283
No
GOM_TRA_1PNPDE20040914_022000_000000442030_00203_13283_0005.N1
14-SEP-2004 02:20:00
Dark
44.000
161
Tau Pup
2.9310
4500.0
88
13283
No
GOM_TRA_1PNPDE20040914_022120_000000562030_00204_13284_0006.N1
14-SEP-2004 02:21:20
Dark
56.000
2
Alp Car
-0.73600
7000.0
112
13284
No
GOM_TRA_1PNPDE20040914_023040_000000392030_00204_13284_0007.N1
14-SEP-2004 02:30:40
Dark
39.000
135
Bet Hyi
2.8200
5800.0
78
13284
No
GOM_TRA_1PNPDE20040914_023303_000000472030_00204_13284_0008.N1
14-SEP-2004 02:33:03
Dark
46.500
9
Alp Eri
0.45300
24000.
93
13284
No
GOM_TRA_1PNPDE20040914_023613_000000392030_00204_13284_0009.N1
14-SEP-2004 02:36:13
Dark
38.500
148
Alp Tuc
2.8780
4100.0
77
13284
No
GOM_TRA_1PNPDE20040914_023956_000000432030_00204_13284_0010.N1
14-SEP-2004 02:39:56
Twilight
42.500
31
Alp Gru
1.7340
15200.
85
13284
No
GOM_TRA_1PNPDE20040914_024243_000000402030_00204_13284_0011.N1
14-SEP-2004 02:42:43
Bright
39.500
172
Gam Gru
3.0030
13100.
79
13284
No
GOM_TRA_1PNPDE20040914_024407_000000462030_00204_13284_0012.N1
14-SEP-2004 02:44:07
Bright
46.000
18
24Alp PsA
1.1660
9700.0
92
13284
No
GOM_TRA_1PNPDE20040914_024636_000000642030_00204_13284_0013.N1
14-SEP-2004 02:46:36
Bright
63.500
52
16Bet Cet
2.0370
4500.0
127
13284
No
GOM_TRA_1PNPDE20040914_024837_000000462030_00204_13284_0014.N1
14-SEP-2004 02:48:37
Bright
45.500
142
49Del Cap
2.8500
8900.0
91
13284
No
GOM_TRA_1PNPDE20040914_025254_000000402030_00204_13284_0015.N1
14-SEP-2004 02:52:54
Bright
39.500
162
34Alp Aqr
2.9440
5350.0
79
13284
No
GOM_TRA_1PNPDE20040914_025554_000000392030_00204_13284_0016.N1
14-SEP-2004 02:55:54
Bright
38.500
61
8Eps Peg
2.1000
3900.0
77
13284
No
GOM_TRA_1PNPDE20040914_025734_000000442030_00204_13284_0017.N1
14-SEP-2004 02:57:34
Bright
43.500
90
54Alp Peg
2.4870
11000.
87
13284
No
GOM_TRA_1PNPDE20040914_025915_000000532030_00204_13284_0018.N1
14-SEP-2004 02:59:15
Bright
52.500
140
88Gam Peg
2.8340
26000.
105
13284
No
GOM_TRA_1PNPDE20040914_030127_000000452030_00204_13284_0019.N1
14-SEP-2004 03:01:27
Bright
44.500
93
53Bet Peg
2.5200
3100.0
89
13284
No
GOM_TRA_1PNPDE20040914_030309_000000412030_00204_13284_0020.N1
14-SEP-2004 03:03:09
Bright
41.000
92
53Eps Cyg
2.5000
4500.0
82
13284
No
GOM_TRA_1PNPDE20040914_030514_000000372030_00204_13284_0021.N1
14-SEP-2004 03:05:14
Bright
37.000
66
37Gam Cyg
2.2080
5900.0
74
13284
No
GOM_TRA_1PNPDE20040914_032148_000000702030_00204_13284_0000.N1
14-SEP-2004 03:21:48
Bright
69.500
35
33Alp Per
1.7950
6250.0
139
13284
No
GOM_TRA_1PNPDE20040914_032536_000000412030_00204_13284_0001.N1
14-SEP-2004 03:25:36
Bright
40.500
36
50Alp UMa
1.8000
6300.0
81
13284
No
GOM_TRA_1PNPDE20040914_032704_000000382030_00204_13284_0002.N1
14-SEP-2004 03:27:04
Bright
37.500
82
48Bet UMa
2.3650
10600.
75
13284
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:
22.4490 %
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:
13.973
18.349
11.827
St. deviation:
4.8282
3.8550
5.3830
Maximum:
19.219
25.674
15.129
Minimum:
5.4146
9.9645
5.6152
Number of data:
17.000
29.000
3.0000

 

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. 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 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.

Statistics SATU X (D) SATU Y (D) SATU X (B) SATU Y (B)
Mean:
1461.2
1447.2
1460.6
1447.2
St. deviation:
4.6605
5.8714
7.1234
8.1203
Maximum:
1724.0
1597.0
1513.0
1507.0
Minimum:
1445.0
1428.0
1424.0
1416.0
Number of data:
22200.
22200.
34800.
34800.

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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