ERS Envisat ALOS-ADEN  
   PCS Home 21-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 03-OCT-2004

GOMOS Daily Report 03-OCT-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
05OCT2004 05:01:38
Data source version
GOMOS/4.02
Start time of products
QDS_YESTERDAY(/START)-1D (03OCT2004 00:00:00)
Stop time of products
QDS_YESTERDAY(/STOP)-1D (04OCT2004 00:00:00)
Store outputs flag
1
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 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_1PNPDE20041003_000001_000000352030_00474_13554_0021.N1
03-OCT-2004 00:00:01
Bright
34.500
49
1Alp UMi
1.9900
6300.0
69
13554
No
GOM_TRA_1PNPDE20041003_002933_000000832030_00474_13554_0000.N1
03-OCT-2004 00:29:33
Dark
82.500
8
10Alp CMi
0.40000
6500.0
165
13554
Yes
GOM_TRA_1PNPDE20041003_003626_000000472030_00474_13554_0001.N1
03-OCT-2004 00:36:26
Dark
47.000
132
15Rho Pup
2.8030
6900.0
94
13554
No
GOM_TRA_1PNPDE20041003_003846_000000492030_00474_13554_0002.N1
03-OCT-2004 00:38:46
Dark
49.000
65
Lam Vel
2.2040
4400.0
98
13554
No
GOM_TRA_1PNPDE20041003_004128_000000482030_00474_13554_0003.N1
03-OCT-2004 00:41:28
Dark
47.500
34
Gam2Vel
1.7930
23000.
95
13554
No
GOM_TRA_1PNPDE20041003_004643_000000572030_00475_13555_0004.N1
03-OCT-2004 00:46:43
Dark
56.500
2
Alp Car
-0.73600
7000.0
113
13555
No
GOM_TRA_1PNPDE20041003_004923_000000642030_00475_13555_0005.N1
03-OCT-2004 00:49:23
Dark
63.500
108
Alp Col
2.6520
15200.
127
13555
No
GOM_TRA_1PNPDE20041003_005336_000000402030_00475_13555_0006.N1
03-OCT-2004 00:53:36
Dark
39.500
135
Bet Hyi
2.8200
5800.0
79
13555
No
GOM_TRA_1PNPDE20041003_005553_000000432030_00475_13555_0007.N1
03-OCT-2004 00:55:53
Dark
42.500
143
Alp Hyi
2.8570
7200.0
85
13555
No
GOM_TRA_1PNPDE20041003_005720_000000542030_00475_13555_0008.N1
03-OCT-2004 00:57:20
Dark
54.000
9
Alp Eri
0.45300
24000.
108
13555
No
GOM_TRA_1PNPDE20041003_005906_000000532030_00475_13555_0009.N1
03-OCT-2004 00:59:06
Dark
53.000
157
The1Eri
2.9060
9300.0
106
13555
No
GOM_TRA_1PNPDE20041003_010235_000000522030_00475_13555_0010.N1
03-OCT-2004 01:02:35
Twilight
52.000
63
Bet Gru
2.1500
2800.0
104
13555
No
GOM_TRA_1PNPDE20041003_010715_000000452030_00475_13555_0011.N1
03-OCT-2004 01:07:15
Bright
45.000
18
24Alp PsA
1.1660
9700.0
90
13555
No
GOM_TRA_1PNPDE20041003_010928_000000492030_00475_13555_0012.N1
03-OCT-2004 01:09:28
Bright
49.000
52
16Bet Cet
2.0370
4500.0
98
13555
No
GOM_TRA_1PNPDE20041003_011357_000001242030_00475_13555_0013.N1
03-OCT-2004 01:13:57
Twilight
124.00
165
34Gam Eri
2.9500
3200.0
248
13555
No
GOM_TRA_1PNPDE20041003_011935_000000422030_00475_13555_0014.N1
03-OCT-2004 01:19:35
Bright
41.500
90
54Alp Peg
2.4870
11000.
83
13555
No
GOM_TRA_1PNPDE20041003_012315_000000392030_00475_13555_0015.N1
03-OCT-2004 01:23:15
Bright
38.500
93
53Bet Peg
2.5200
3100.0
77
13555
No
GOM_TRA_1PNPDE20041003_012500_000000612030_00475_13555_0016.N1
03-OCT-2004 01:25:00
Bright
61.000
105
6Bet Ari
2.6450
8900.0
122
13555
No
GOM_TRA_1PNPDE20041003_012726_000000522030_00475_13555_0017.N1
03-OCT-2004 01:27:26
Bright
51.500
53
43Bet And
2.0480
3300.0
103
13555
No
GOM_TRA_1PNPDE20041003_013031_000000572030_00475_13555_0018.N1
03-OCT-2004 01:30:31
Bright
56.500
173
4Bet Tri
3.0040
8900.0
113
13555
No
GOM_TRA_1PNPDE20041003_013231_000000412030_00475_13555_0019.N1
03-OCT-2004 01:32:31
Bright
40.500
74
11Bet Cas
2.2680
6600.0
81
13555
No
GOM_TRA_1PNPDE20041003_013347_000000412030_00475_13555_0020.N1
03-OCT-2004 01:33:47
Bright
41.000
76
27Gam Cas
2.3000
30000.
82
13555
No
GOM_TRA_1PNPDE20041003_013727_000000492030_00475_13555_0021.N1
03-OCT-2004 01:37:27
Bright
48.500
160
23Gam Per
2.9300
4700.0
97
13555
No
GOM_TRA_1PNPDE20041003_014035_000000382030_00475_13555_0022.N1
03-OCT-2004 01:40:35
Bright
37.500
49
1Alp UMi
1.9900
6300.0
75
13555
No
GOM_TRA_1PNPDE20041003_014246_000000442030_00475_13555_0023.N1
03-OCT-2004 01:42:46
Bright
43.500
60
7Bet UMi
2.0810
3950.0
87
13555
No
GOM_TRA_1PNPDE20041003_021010_000000922030_00475_13555_0000.N1
03-OCT-2004 02:10:10
Dark
92.000
8
10Alp CMi
0.40000
6500.0
184
13555
No
GOM_TRA_1PNPDE20041003_021923_000000512030_00475_13555_0001.N1
03-OCT-2004 02:19:23
Dark
50.500
65
Lam Vel
2.2040
4400.0
101
13555
No
GOM_TRA_1PNPDE20041003_022205_000000442030_00475_13555_0002.N1
03-OCT-2004 02:22:05
Dark
44.000
34
Gam2Vel
1.7930
23000.
88
13555
No
GOM_TRA_1PNPDE20041003_022718_000000512030_00476_13556_0003.N1
03-OCT-2004 02:27:18
Dark
50.500
2
Alp Car
-0.73600
7000.0
101
13556
No
GOM_TRA_1PNPDE20041003_023001_000000672030_00476_13556_0004.N1
03-OCT-2004 02:30:01
Dark
67.000
108
Alp Col
2.6520
15200.
134
13556
No
GOM_TRA_1PNPDE20041003_023412_000000402030_00476_13556_0005.N1
03-OCT-2004 02:34:12
Dark
39.500
135
Bet Hyi
2.8200
5800.0
79
13556
No
GOM_TRA_1PNPDE20041003_023629_000000412030_00476_13556_0006.N1
03-OCT-2004 02:36:29
Dark
41.000
143
Alp Hyi
2.8570
7200.0
82
13556
No
GOM_TRA_1PNPDE20041003_023756_000000432030_00476_13556_0007.N1
03-OCT-2004 02:37:56
Dark
43.000
9
Alp Eri
0.45300
24000.
86
13556
No
GOM_TRA_1PNPDE20041003_023943_000000522030_00476_13556_0008.N1
03-OCT-2004 02:39:43
Dark
51.500
157
The1Eri
2.9060
9300.0
103
13556
No
GOM_TRA_1PNPDE20041003_024311_000000522030_00476_13556_0009.N1
03-OCT-2004 02:43:11
Twilight
52.000
63
Bet Gru
2.1500
2800.0
104
13556
No
GOM_TRA_1PNPDE20041003_024751_000000422030_00476_13556_0010.N1
03-OCT-2004 02:47:51
Bright
41.500
18
24Alp PsA
1.1660
9700.0
83
13556
No
GOM_TRA_1PNPDE20041003_025004_000000542030_00476_13556_0011.N1
03-OCT-2004 02:50:04
Bright
53.500
52
16Bet Cet
2.0370
4500.0
107
13556
No
GOM_TRA_1PNPDE20041003_025429_000001242030_00476_13556_0012.N1
03-OCT-2004 02:54:29
Twilight
124.00
165
34Gam Eri
2.9500
3200.0
248
13556
No
GOM_TRA_1PNPDE20041003_030012_000000412030_00476_13556_0013.N1
03-OCT-2004 03:00:12
Bright
41.000
90
54Alp Peg
2.4870
11000.
82
13556
No
GOM_TRA_1PNPDE20041003_030351_000000382030_00476_13556_0014.N1
03-OCT-2004 03:03:51
Bright
38.000
93
53Bet Peg
2.5200
3100.0
76
13556
No
GOM_TRA_1PNPDE20041003_030535_000000602030_00476_13556_0015.N1
03-OCT-2004 03:05:35
Bright
59.500
105
6Bet Ari
2.6450
8900.0
119
13556
No
GOM_TRA_1PNPDE20041003_030802_000000462030_00476_13556_0016.N1
03-OCT-2004 03:08:02
Bright
46.000
53
43Bet And
2.0480
3300.0
92
13556
No
GOM_TRA_1PNPDE20041003_031105_000000582030_00476_13556_0017.N1
03-OCT-2004 03:11:05
Bright
57.500
173
4Bet Tri
3.0040
8900.0
115
13556
No
GOM_TRA_1PNPDE20041003_031307_000000372030_00476_13556_0018.N1
03-OCT-2004 03:13:07
Bright
37.000
74
11Bet Cas
2.2680
6600.0
74
13556
No
GOM_TRA_1PNPDE20041003_031422_000000422030_00476_13556_0019.N1
03-OCT-2004 03:14:22
Bright
41.500
76
27Gam Cas
2.3000
30000.
83
13556
No
GOM_TRA_1PNPDE20041003_031802_000000532030_00476_13556_0020.N1
03-OCT-2004 03:18:02
Bright
53.000
160
23Gam Per
2.9300
4700.0
106
13556
No
GOM_TRA_1PNPDE20041003_032109_000000402030_00476_13556_0021.N1
03-OCT-2004 03:21:09
Bright
40.000
49
1Alp UMi
1.9900
6300.0
80
13556
No
GOM_TRA_1PNPDE20041003_032324_000000392030_00476_13556_0000.N1
03-OCT-2004 03:23:24
Bright
39.000
60
7Bet UMi
2.0810
3950.0
78
13556
No
GOM_TRA_1PNPDE20041003_032913_000000392030_00476_13556_0001.N1
03-OCT-2004 03:29:13
Bright
39.000
36
50Alp UMa
1.8000
6300.0
78
13556
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:
12.5000 %
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:
14.746
20.251
55.846
St. deviation:
5.2375
4.4349
58.795
Maximum:
21.357
28.143
107.33
Minimum:
4.7380
10.539
4.7851
Number of data:
18.000
26.000
4.0000

 

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:
1461.8
1447.5
1461.7
1447.7
St. deviation:
5.4604
6.4111
6.3635
7.0761
Maximum:
1552.0
1484.0
1513.0
1511.0
Minimum:
1432.0
1412.0
1444.0
1437.0
Number of data:
23950.
23950.
32150.
32150.

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