GOMOS Daily Reports

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	13NOV2006 05:32:51
Data source version	GOMOS/5.00
Start time of products	QDS_YESTERDAY(/START)-1D (11NOV2006 00:00:00)
Stop time of products	QDS_YESTERDAY(/STOP)-1D (12NOV2006 00:00:00)
Store outputs in DB	Yes
Nb of level 1b prods	50
Nb of prods with errors	12

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

Nr	Filename	UTC Start time	Limb	Duration	Star Id	Star Name	Star Mag	Star Temp	Nb Meas	Orbit	Prod. error
1	GOM_TRA_1PNPDE20061111_000738_000000442052_00460_24562_1244.N1	11-NOV-2006 00:07:38	Twi_and_stray	43.500	94	92Alp Cet	2.5260	3100.0	87	24562	No
2	GOM_TRA_1PNPDE20061111_001218_000000312052_00460_24562_1245.N1	11-NOV-2006 00:12:18	Bright	30.500	105	6Bet Ari	2.6450	8900.0	61	24562	Yes
3	GOM_TRA_1PNPDE20061111_001626_000000322052_00460_24562_1246.N1	11-NOV-2006 00:16:26	Bright	31.500	173	4Bet Tri	3.0040	8900.0	63	24562	Yes
4	GOM_TRA_1PNPDE20061111_001829_000000322052_00460_24562_1247.N1	11-NOV-2006 00:18:29	Bright	31.500	73	57Gam1And	2.2600	13100.	63	24562	Yes
5	GOM_TRA_1PNPDE20061111_002201_000000332052_00460_24562_1248.N1	11-NOV-2006 00:22:01	Bright	33.000	35	33Alp Per	1.7950	6250.0	66	24562	No
6	GOM_TRA_1PNPDE20061111_002326_000000282052_00460_24562_1249.N1	11-NOV-2006 00:23:26	Bright	27.500	110	37Del Cas	2.6780	8900.0	55	24562	Yes
7	GOM_TRA_1PNPDE20061111_003138_000000302052_00460_24562_1250.N1	11-NOV-2006 00:31:38	Bright	30.000	49	1Alp UMi	1.9900	6300.0	60	24562	Yes
8	GOM_TRA_1PNPDE20061111_003931_000000352052_00460_24562_1251.N1	11-NOV-2006 00:39:31	Bright	34.500	36	50Alp UMa	1.8000	6300.0	69	24562	No
9	GOM_TRA_1PNPDE20061111_004109_000000332052_00460_24562_1252.N1	11-NOV-2006 00:41:09	Bright	32.500	82	48Bet UMa	2.3650	10600.	65	24562	No
10	GOM_TRA_1PNPDE20061111_004504_000000362052_00460_24562_1253.N1	11-NOV-2006 00:45:04	Bright	36.000	174	52Psi UMa	3.0040	4400.0	72	24562	No
11	GOM_TRA_1PNPDE20061111_004637_000000292052_00460_24562_1254.N1	11-NOV-2006 00:46:37	Bright	29.000	152	12Alp2CVn	2.8900	11000.	58	24562	No
12	GOM_TRA_1PNPDE20061111_005422_000000322052_00460_24562_1255.N1	11-NOV-2006 00:54:22	Bright	32.000	62	94Bet Leo	2.1360	9700.0	64	24562	No
13	GOM_TRA_1PNPDE20061111_010423_000000352052_00460_24562_1256.N1	11-NOV-2006 01:04:23	Twilight	34.500	171	2Eps Crv	3.0010	4250.0	69	24562	No
14	GOM_TRA_1PNPDE20061111_011327_000000392052_00460_24562_1257.N1	11-NOV-2006 01:13:27	Dark	38.500	113	Mu Vel	2.6920	5000.0	77	24562	No
15	GOM_TRA_1PNPDE20061111_012045_000000402052_00461_24563_1258.N1	11-NOV-2006 01:20:45	Dark	40.000	34	Gam2Vel	1.7930	23000.	80	24563	No
16	GOM_TRA_1PNPDE20061111_012541_000000412052_00461_24563_1259.N1	11-NOV-2006 01:25:41	Dark	40.500	2	Alp Car	-0.73600	7000.0	81	24563	No
17	GOM_TRA_1PNPDE20061111_013455_000000342052_00461_24563_1260.N1	11-NOV-2006 01:34:55	Straylight	33.500	157	The1Eri	2.9060	9300.0	67	24563	No
18	GOM_TRA_1PNPDE20061111_014814_000000442052_00461_24563_1304.N1	11-NOV-2006 01:48:14	Twi_and_stray	44.000	94	92Alp Cet	2.5260	3100.0	88	24563	No
19	GOM_TRA_1PNPDE20061111_015254_000000312052_00461_24563_1305.N1	11-NOV-2006 01:52:54	Bright	31.000	105	6Bet Ari	2.6450	8900.0	62	24563	Yes
20	GOM_TRA_1PNPDE20061111_015701_000000302052_00461_24563_1306.N1	11-NOV-2006 01:57:01	Bright	30.000	173	4Bet Tri	3.0040	8900.0	60	24563	No
21	GOM_TRA_1PNPDE20061111_015905_000000322052_00461_24563_1307.N1	11-NOV-2006 01:59:05	Bright	32.000	73	57Gam1And	2.2600	13100.	64	24563	No
22	GOM_TRA_1PNPDE20061111_020236_000000352052_00461_24563_1308.N1	11-NOV-2006 02:02:36	Bright	35.000	35	33Alp Per	1.7950	6250.0	70	24563	No
23	GOM_TRA_1PNPDE20061111_020402_000000302052_00461_24563_1309.N1	11-NOV-2006 02:04:02	Bright	29.500	110	37Del Cas	2.6780	8900.0	59	24563	Yes
24	GOM_TRA_1PNPDE20061111_021214_000000302052_00461_24563_1310.N1	11-NOV-2006 02:12:14	Bright	30.000	49	1Alp UMi	1.9900	6300.0	60	24563	Yes
25	GOM_TRA_1PNPDE20061111_022007_000000352052_00461_24563_1311.N1	11-NOV-2006 02:20:07	Bright	35.000	36	50Alp UMa	1.8000	6300.0	70	24563	No
26	GOM_TRA_1PNPDE20061111_022145_000000532052_00461_24563_1312.N1	11-NOV-2006 02:21:45	Bright	53.000	82	48Bet UMa	2.3650	10600.	106	24563	No
27	GOM_TRA_1PNPDE20061111_022540_000000352052_00461_24563_1313.N1	11-NOV-2006 02:25:40	Bright	35.000	174	52Psi UMa	3.0040	4400.0	70	24563	No
28	GOM_TRA_1PNPDE20061111_022713_000000292052_00461_24563_1314.N1	11-NOV-2006 02:27:13	Bright	29.000	152	12Alp2CVn	2.8900	11000.	58	24563	No
29	GOM_TRA_1PNPDE20061111_023458_000000342052_00461_24563_1315.N1	11-NOV-2006 02:34:58	Bright	34.000	62	94Bet Leo	2.1360	9700.0	68	24563	No
30	GOM_TRA_1PNPDE20061111_024459_000000342052_00461_24563_1316.N1	11-NOV-2006 02:44:59	Twilight	34.000	171	2Eps Crv	3.0010	4250.0	68	24563	No
31	GOM_TRA_1PNPDE20061111_025404_000000352052_00461_24563_1317.N1	11-NOV-2006 02:54:04	Dark	35.000	113	Mu Vel	2.6920	5000.0	70	24563	No
32	GOM_TRA_1PNPDE20061111_030122_000000422052_00462_24564_1318.N1	11-NOV-2006 03:01:22	Dark	42.000	34	Gam2Vel	1.7930	23000.	84	24564	No
33	GOM_TRA_1PNPDE20061111_030618_000000552052_00462_24564_1319.N1	11-NOV-2006 03:06:18	Dark	55.000	2	Alp Car	-0.73600	7000.0	110	24564	No
34	GOM_TRA_1PNPDE20061111_031531_000000332052_00462_24564_1320.N1	11-NOV-2006 03:15:31	Straylight	32.500	157	The1Eri	2.9060	9300.0	65	24564	No
35	GOM_TRA_1PNPDE20061111_032850_000000422052_00462_24564_1412.N1	11-NOV-2006 03:28:50	Twi_and_stray	42.000	94	92Alp Cet	2.5260	3100.0	84	24564	No
36	GOM_TRA_1PNPDE20061111_033330_000000302052_00462_24564_1413.N1	11-NOV-2006 03:33:30	Bright	30.000	105	6Bet Ari	2.6450	8900.0	60	24564	Yes
37	GOM_TRA_1PNPDE20061111_033737_000000312052_00462_24564_1414.N1	11-NOV-2006 03:37:37	Bright	30.500	173	4Bet Tri	3.0040	8900.0	61	24564	Yes
38	GOM_TRA_1PNPDE20061111_033941_000000332052_00462_24564_1415.N1	11-NOV-2006 03:39:41	Bright	32.500	73	57Gam1And	2.2600	13100.	65	24564	No
39	GOM_TRA_1PNPDE20061111_034312_000000352052_00462_24564_1416.N1	11-NOV-2006 03:43:12	Bright	35.000	35	33Alp Per	1.7950	6250.0	70	24564	No
40	GOM_TRA_1PNPDE20061111_034438_000000282052_00462_24564_1417.N1	11-NOV-2006 03:44:38	Bright	28.000	110	37Del Cas	2.6780	8900.0	56	24564	Yes
41	GOM_TRA_1PNPDE20061111_035250_000000272052_00462_24564_1418.N1	11-NOV-2006 03:52:50	Bright	27.000	49	1Alp UMi	1.9900	6300.0	54	24564	Yes
42	GOM_TRA_1PNPDE20061111_040042_000000352052_00462_24564_1419.N1	11-NOV-2006 04:00:42	Bright	35.000	36	50Alp UMa	1.8000	6300.0	70	24564	No
43	GOM_TRA_1PNPDE20061111_040221_000000332052_00462_24564_1420.N1	11-NOV-2006 04:02:21	Bright	33.000	82	48Bet UMa	2.3650	10600.	66	24564	No
44	GOM_TRA_1PNPDE20061111_040615_000000372052_00462_24564_1421.N1	11-NOV-2006 04:06:15	Bright	36.500	174	52Psi UMa	3.0040	4400.0	73	24564	No
45	GOM_TRA_1PNPDE20061111_040749_000000292052_00462_24564_1422.N1	11-NOV-2006 04:07:49	Bright	28.500	152	12Alp2CVn	2.8900	11000.	57	24564	No
46	GOM_TRA_1PNPDE20061111_041534_000000342052_00462_24564_1423.N1	11-NOV-2006 04:15:34	Bright	34.000	62	94Bet Leo	2.1360	9700.0	68	24564	No
47	GOM_TRA_1PNPDE20061111_042405_000000332052_00462_24564_1424.N1	11-NOV-2006 04:24:05	Twi_and_stray	33.000	100	4Gam Crv	2.5800	13100.	66	24564	No
48	GOM_TRA_1PNPDE20061111_042535_000000322052_00462_24564_1425.N1	11-NOV-2006 04:25:35	Twilight	32.000	171	2Eps Crv	3.0010	4250.0	64	24564	No
49	GOM_TRA_1PNPDE20061111_043440_000000352052_00462_24564_1426.N1	11-NOV-2006 04:34:40	Dark	34.500	113	Mu Vel	2.6920	5000.0	69	24564	No
50	GOM_TRA_1PNPDE20061111_044158_000000412052_00463_24565_1427.N1	11-NOV-2006 04:41:58	Dark	40.500	34	Gam2Vel	1.7930	23000.	81	24565	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

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:	18.4211 %
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)

5.3 Plot quality information per product (world map)

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:	15.517	20.095	16.262
St. deviation:	5.3605	4.3713	1.9148
Maximum:	19.994	24.898	18.471
Minimum:	3.4559	3.5185	15.073
Number of data:	8.0000	21.000	3.0000

6.2 Plot for DARK limb products

6.3 Plot for BRIGHT limb products

6.3 Plot for TWILIGHT limb products

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

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:	0.26285	-1.6229	0.15075	-1.3407
St. deviation:	0.42736	1.5467	0.76386	1.4511
Maximum:	2.2000	3.0000	5.1000	6.7000
Minimum:	-0.90000	-5.6000	-2.4000	-4.3000
Number of data:	3450.0	3450.0	6000.0	6000.0

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.

qds_image

8. Auxiliary Data Files used for the production reported in section 2.2

The number reported in the third column indicates since which file (see list in section 2.2) 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-NOV-2006 00:07:38
CALIBRATION_DATABASE	GOM_CAL_AXVIEC20061109_084512_20061107_000000_20100101_000000	1	11-NOV-2006 00:07:38
LEVEL-1B_PROC_CONFIG	GOM_PR1_AXNIEC20050627_151042_20020301_000000_20100101_000000	1	11-NOV-2006 00:07:38
STAR_CATALOGUE	GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000	1	11-NOV-2006 00:07:38
STELLAR_SPECTRA_DATABANK	GOM_STS_AXNIEC20040308_103538_20020101_160000_20100101_000000	1	11-NOV-2006 00:07:38
ECMWF_FILE	AUX_ECF_AXNECM20061110_062852_20061110_210000_20061111_090000	1	11-NOV-2006 00:07:38
ECMWF_FILE	AUX_ECF_AXNECM20061110_182304_20061111_030000_20061111_150000	35	11-NOV-2006 03:28:50
OPTIONAL_ECMWF_FILE	MISSING	1	11-NOV-2006 00:07:38
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20061110_235240_000057382052_00460_24562_2378.N1	1	11-NOV-2006 00:07:38
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20061110_235240_000057382052_00461_24563_2378.N1	15	11-NOV-2006 01:20:45
ORBIT_DATA_FILE	AUX_FPO_AXVFOS20061110_232845_20061110_183242_20061120_213932	18	11-NOV-2006 01:48:14
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20061111_031434_000060572052_00462_24564_2380.N1	35	11-NOV-2006 03:28:50
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20061111_031434_000060572052_00463_24565_2380.N1	50	11-NOV-2006 04:41:58

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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Last modified:
24-Apr-2008