ERS Envisat ALOS-ADEN  
   PCS Home 23-May-2013     
GOMOS
Articles & Studies
Consolidated Datasets
Documentation
Mission events history
Planned occultation maps
Reports
Search:
Advanced Search
Glossary
FAQ
Contact us
 
Select period:
GOMOS Daily Report 12-AUG-2004

GOMOS Daily Report 12-AUG-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
14AUG2004 05:01:39
Data source version
GOMOS/4.02
Start time of products
QDS_YESTERDAY(/START)-1D (12AUG2004 00:00:00)
Stop time of products
QDS_YESTERDAY(/STOP)-1D (13AUG2004 00:00:00)
Store outputs flag
1
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 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_1PNPDE20040812_000349_000000482029_00231_12810_0010.N1
12-AUG-2004 00:03:49
Bright
47.500
142
49Del Cap
2.8500
8900.0
95
12810
No
GOM_TRA_1PNPDE20040812_000726_000000472029_00231_12810_0011.N1
12-AUG-2004 00:07:26
Bright
46.500
154
22Bet Aqr
2.8990
5700.0
93
12810
No
GOM_TRA_1PNPDE20040812_000941_000000542029_00231_12810_0012.N1
12-AUG-2004 00:09:41
Bright
53.500
162
34Alp Aqr
2.9440
5350.0
107
12810
No
GOM_TRA_1PNPDE20040812_001144_000000372029_00231_12810_0013.N1
12-AUG-2004 00:11:44
Bright
36.500
11
53Alp Aql
0.76500
8000.0
73
12810
No
GOM_TRA_1PNPDE20040812_001328_000000372029_00231_12810_0014.N1
12-AUG-2004 00:13:28
Bright
36.500
168
17Zet Aql
2.9860
11000.
73
12810
No
GOM_TRA_1PNPDE20040812_010638_000000402029_00231_12810_0000.N1
12-AUG-2004 01:06:38
Dark
39.500
179
24Omi2CMa
3.0320
24000.
79
12810
No
GOM_TRA_1PNPDE20040812_010806_000000412029_00231_12810_0001.N1
12-AUG-2004 01:08:06
Dark
41.000
23
21Eps CMa
1.5020
26000.
82
12810
No
GOM_TRA_1PNPDE20040812_011010_000000452029_00231_12810_0002.N1
12-AUG-2004 01:10:10
Dark
44.500
117
Pi Pup
2.7060
3800.0
89
12810
No
GOM_TRA_1PNPDE20040812_011454_000000522029_00231_12810_0003.N1
12-AUG-2004 01:14:54
Dark
52.000
2
Alp Car
-0.73600
7000.0
104
12810
No
GOM_TRA_1PNPDE20040812_012026_000000552029_00232_12811_0004.N1
12-AUG-2004 01:20:26
Dark
54.500
157
The1Eri
2.9060
9300.0
109
12811
No
GOM_TRA_1PNPDE20040812_012458_000000472029_00232_12811_0005.N1
12-AUG-2004 01:24:58
Dark
46.500
9
Alp Eri
0.45300
24000.
93
12811
No
GOM_TRA_1PNPDE20040812_013032_000000692029_00232_12811_0006.N1
12-AUG-2004 01:30:32
Twilight
69.000
84
Alp Phe
2.3970
4500.0
138
12811
No
GOM_TRA_1PNPDE20040812_013336_000000542029_00232_12811_0007.N1
12-AUG-2004 01:33:36
Twilight
54.000
63
Bet Gru
2.1500
2800.0
108
12811
No
GOM_TRA_1PNPDE20040812_013826_000000622029_00232_12811_0008.N1
12-AUG-2004 01:38:26
Bright
61.500
18
24Alp PsA
1.1660
9700.0
123
12811
No
GOM_TRA_1PNPDE20040812_014425_000000472029_00232_12811_0009.N1
12-AUG-2004 01:44:25
Bright
46.500
142
49Del Cap
2.8500
8900.0
93
12811
No
GOM_TRA_1PNPDE20040812_014801_000000462029_00232_12811_0010.N1
12-AUG-2004 01:48:01
Bright
45.500
154
22Bet Aqr
2.8990
5700.0
91
12811
No
GOM_TRA_1PNPDE20040812_015016_000000542029_00232_12811_0011.N1
12-AUG-2004 01:50:16
Bright
54.000
162
34Alp Aqr
2.9440
5350.0
108
12811
No
GOM_TRA_1PNPDE20040812_015220_000000382029_00232_12811_0012.N1
12-AUG-2004 01:52:20
Bright
37.500
11
53Alp Aql
0.76500
8000.0
75
12811
No
GOM_TRA_1PNPDE20040812_021721_000000512029_00232_12811_0000.N1
12-AUG-2004 02:17:21
Bright
50.500
110
37Del Cas
2.6780
8900.0
101
12811
No
GOM_TRA_1PNPDE20040812_022307_000000532029_00232_12811_0001.N1
12-AUG-2004 02:23:07
Bright
53.000
160
23Gam Per
2.9300
4700.0
106
12811
No
GOM_TRA_1PNPDE20040812_022520_000002552029_00232_12811_0002.N1
12-AUG-2004 02:25:20
Bright
255.00
53
43Bet And
2.0480
3300.0
510
12811
No
GOM_TRA_1PNPDE20040812_023042_000000432029_00232_12811_0003.N1
12-AUG-2004 02:30:42
Twilight
43.000
107
37The Aur
2.6490
11000.
86
12811
No
GOM_TRA_1PNPDE20040812_023342_000000562029_00232_12811_0004.N1
12-AUG-2004 02:33:42
Twilight
55.500
28
12Bet Tau
1.6500
15200.
111
12811
No
GOM_TRA_1PNPDE20040812_023627_000000452029_00232_12811_0005.N1
12-AUG-2004 02:36:27
Twilight
45.000
44
24Gam Gem
1.9280
11000.
90
12811
No
GOM_TRA_1PNPDE20040812_023908_000000782029_00232_12811_0006.N1
12-AUG-2004 02:39:08
Twilight
78.000
13
87Alp Tau
0.86700
3800.0
156
12811
No
GOM_TRA_1PNPDE20040812_024057_000000492029_00232_12811_0007.N1
12-AUG-2004 02:40:57
Dark
49.000
27
24Gam Ori
1.6360
26000.
98
12811
No
GOM_TRA_1PNPDE20040812_024253_000000492029_00232_12811_0008.N1
12-AUG-2004 02:42:53
Dark
48.500
30
46Eps Ori
1.6940
30000.
97
12811
No
GOM_TRA_1PNPDE20040812_024533_000000462029_00232_12811_0009.N1
12-AUG-2004 02:45:33
Dark
46.000
1
9Alp CMa
-1.4400
11000.
92
12811
No
GOM_TRA_1PNPDE20040812_024712_000000442029_00232_12811_0010.N1
12-AUG-2004 02:47:12
Dark
43.500
179
24Omi2CMa
3.0320
24000.
87
12811
No
GOM_TRA_1PNPDE20040812_024841_000000442029_00232_12811_0011.N1
12-AUG-2004 02:48:41
Dark
44.000
23
21Eps CMa
1.5020
26000.
88
12811
No
GOM_TRA_1PNPDE20040812_025046_000000452029_00232_12811_0012.N1
12-AUG-2004 02:50:46
Dark
44.500
117
Pi Pup
2.7060
3800.0
89
12811
No
GOM_TRA_1PNPDE20040812_025530_000000422029_00232_12811_0013.N1
12-AUG-2004 02:55:30
Dark
41.500
2
Alp Car
-0.73600
7000.0
83
12811
No
GOM_TRA_1PNPDE20040812_030103_000000532029_00233_12812_0014.N1
12-AUG-2004 03:01:03
Dark
53.000
157
The1Eri
2.9060
9300.0
106
12812
No
GOM_TRA_1PNPDE20040812_030535_000000482029_00233_12812_0015.N1
12-AUG-2004 03:05:35
Dark
48.000
9
Alp Eri
0.45300
24000.
96
12812
No
GOM_TRA_1PNPDE20040812_031108_000000572029_00233_12812_0016.N1
12-AUG-2004 03:11:08
Twilight
56.500
84
Alp Phe
2.3970
4500.0
113
12812
No
GOM_TRA_1PNPDE20040812_031412_000000522029_00233_12812_0017.N1
12-AUG-2004 03:14:12
Twilight
52.000
63
Bet Gru
2.1500
2800.0
104
12812
No
GOM_TRA_1PNPDE20040812_031903_000000642029_00233_12812_0018.N1
12-AUG-2004 03:19:03
Bright
63.500
18
24Alp PsA
1.1660
9700.0
127
12812
No
GOM_TRA_1PNPDE20040812_032500_000000492029_00233_12812_0019.N1
12-AUG-2004 03:25:00
Bright
49.000
142
49Del Cap
2.8500
8900.0
98
12812
No
GOM_TRA_1PNPDE20040812_032837_000000462029_00233_12812_0020.N1
12-AUG-2004 03:28:37
Bright
45.500
154
22Bet Aqr
2.8990
5700.0
91
12812
No
GOM_TRA_1PNPDE20040812_033052_000000532029_00233_12812_0021.N1
12-AUG-2004 03:30:52
Bright
53.000
162
34Alp Aqr
2.9440
5350.0
106
12812
No
GOM_TRA_1PNPDE20040812_033255_000000382029_00233_12812_0022.N1
12-AUG-2004 03:32:55
Bright
37.500
11
53Alp Aql
0.76500
8000.0
75
12812
No
GOM_TRA_1PNPDE20040812_033440_000000382029_00233_12812_0023.N1
12-AUG-2004 03:34:40
Bright
37.500
168
17Zet Aql
2.9860
11000.
75
12812
No
GOM_TRA_1PNPDE20040812_034030_000000432029_00233_12812_0024.N1
12-AUG-2004 03:40:30
Bright
42.500
92
53Eps Cyg
2.5000
4500.0
85
12812
No
GOM_TRA_1PNPDE20040812_034200_000000402029_00233_12812_0025.N1
12-AUG-2004 03:42:00
Bright
40.000
66
37Gam Cyg
2.2080
5900.0
80
12812
No
GOM_TRA_1PNPDE20040812_034342_000000382029_00233_12812_0026.N1
12-AUG-2004 03:43:42
Bright
38.000
19
50Alp Cyg
1.2460
10500.
76
12812
No
GOM_TRA_1PNPDE20040812_040342_000000712029_00233_12812_0000.N1
12-AUG-2004 04:03:42
Bright
70.500
160
23Gam Per
2.9300
4700.0
141
12812
No
GOM_TRA_1PNPDE20040812_040553_000002552029_00233_12812_0001.N1
12-AUG-2004 04:05:53
Bright
255.00
53
43Bet And
2.0480
3300.0
510
12812
No
GOM_TRA_1PNPDE20040812_041118_000000412029_00233_12812_0002.N1
12-AUG-2004 04:11:18
Twilight
41.000
107
37The Aur
2.6490
11000.
82
12812
No
GOM_TRA_1PNPDE20040812_041418_000000512029_00233_12812_0003.N1
12-AUG-2004 04:14:18
Twilight
50.500
28
12Bet Tau
1.6500
15200.
101
12812
No
GOM_TRA_1PNPDE20040812_041703_000000452029_00233_12812_0004.N1
12-AUG-2004 04:17:03
Twilight
44.500
44
24Gam Gem
1.9280
11000.
89
12812
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:
26.0000 %
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:
14.174
19.242
12.646
St. deviation:
3.3663
4.3630
4.6045
Maximum:
18.649
25.508
21.055
Minimum:
5.7350
6.9847
5.7290
Number of data:
15.000
24.000
11.000

 

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:
1460.0
1445.8
1462.9
1448.5
St. deviation:
5.1180
6.3980
6.9763
7.6872
Maximum:
1506.0
1504.0
1510.0
1489.0
Minimum:
1457.0
1427.0
1444.0
1431.0
Number of data:
17750.
17750.
35500.
35500.

Reports
Daily Report Level 2 Dataset IPF v6.01
Daily Reports of NRT data
Data Anomaly Reports
Instrument Anomaly Reports
Monthly Reports
  ©PCS/Esrin/ESA  e-mail webmaster Last modified:
24-Apr-2008