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	17JAN2008 05:43:48
Data source version	GOMOS/5.00
Start time of products	QDS_YESTERDAY(/START)-1D (15JAN2008 00:00:00)
Stop time of products	QDS_YESTERDAY(/STOP)-1D (16JAN2008 00:00:00)
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)

UTC start time	Star name	Star ID	Orbit
15-JAN-2008 00:55:53	GamLup	131	30717
15-JAN-2008 02:36:29	GamLup	131	30718
15-JAN-2008 16:29:06	21EpsCMa	23	30727
15-JAN-2008 16:30:31	24Omi2CMa	179	30727
15-JAN-2008 16:32:45	9AlpCMa	1	30727
15-JAN-2008 16:35:14	53KapOri	56	30727
15-JAN-2008 16:36:24	44IotOri	125	30727
15-JAN-2008 16:37:42	46EpsOri	30	30727
15-JAN-2008 16:39:55	58AlpOri	14	30727
15-JAN-2008 16:42:26	24GamGem	44	30727
15-JAN-2008 16:43:52	23ZetTau	176	30727
15-JAN-2008 16:46:01	12BetTau	28	30727
15-JAN-2008 16:47:36	3IotAur	114	30727
15-JAN-2008 16:50:29	34BetAur	42	30727
15-JAN-2008 17:03:02	1AlpUMi	49	30727
15-JAN-2008 17:11:19	14EtaDra	119	30727
15-JAN-2008 17:13:53	23BetDra	130	30727
15-JAN-2008 17:20:10	40ZetHer	133	30727
15-JAN-2008 17:23:16	27BetHer	127	30727
15-JAN-2008 17:24:58	55AlpOph	59	30727
15-JAN-2008 17:30:53	1DelOph	120	30727
15-JAN-2008 17:32:15	13ZetOph	98	30727
15-JAN-2008 17:36:43	21AlpSco	16	30727
15-JAN-2008 17:38:25	26EpsSco	75	30727
15-JAN-2008 17:41:57	GamLup	131	30727
15-JAN-2008 17:43:42	BetLup	109	30727
15-JAN-2008 17:45:13	AlpLup	78	30727

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_1PNPDE20080115_000002_000000352065_00102_30717_7415.N1	15-JAN-2008 00:00:02	Bright	35.000	28	12Bet Tau	1.6500	15200.	70	30717	No
2	GOM_TRA_1PNPDE20080115_000136_000000362065_00102_30717_7416.N1	15-JAN-2008 00:01:36	Bright	36.000	114	3Iot Aur	2.6930	4600.0	72	30717	No
3	GOM_TRA_1PNPDE20080115_000432_000000362065_00102_30717_7417.N1	15-JAN-2008 00:04:32	Bright	36.000	42	34Bet Aur	1.9000	10200.	72	30717	No
4	GOM_TRA_1PNPDE20080115_001704_000000322065_00102_30717_7418.N1	15-JAN-2008 00:17:04	Bright	32.000	49	1Alp UMi	1.9900	6300.0	64	30717	No
5	GOM_TRA_1PNPDE20080115_002522_000000382065_00102_30717_7419.N1	15-JAN-2008 00:25:22	Bright	38.000	119	14Eta Dra	2.7270	4700.0	76	30717	No
6	GOM_TRA_1PNPDE20080115_002755_000000522065_00102_30717_7420.N1	15-JAN-2008 00:27:55	Bright	52.000	130	23Bet Dra	2.7990	5800.0	104	30717	No
7	GOM_TRA_1PNPDE20080115_003411_000000362065_00102_30717_7421.N1	15-JAN-2008 00:34:11	Bright	35.500	133	40Zet Her	2.8070	6000.0	71	30717	No
8	GOM_TRA_1PNPDE20080115_003716_000000552065_00102_30717_7422.N1	15-JAN-2008 00:37:16	Bright	55.000	127	27Bet Her	2.7810	4700.0	110	30717	No
9	GOM_TRA_1PNPDE20080115_003859_000000332065_00102_30717_7423.N1	15-JAN-2008 00:38:59	Bright	33.000	59	55Alp Oph	2.0800	8900.0	66	30717	No
10	GOM_TRA_1PNPDE20080115_004452_000000562065_00102_30717_7424.N1	15-JAN-2008 00:44:52	Bright	56.000	120	1Del Oph	2.7340	3200.0	112	30717	No
11	GOM_TRA_1PNPDE20080115_004614_000000532065_00102_30717_7425.N1	15-JAN-2008 00:46:14	Bright	52.500	98	13Zet Oph	2.5710	30000.	105	30717	No
12	GOM_TRA_1PNPDE20080115_005042_000000492065_00102_30717_7574.N1	15-JAN-2008 00:50:42	Twi_and_stray	48.500	16	21Alp Sco	1.0200	3000.0	97	30717	No
13	GOM_TRA_1PNPDE20080115_005225_000000412065_00102_30717_7575.N1	15-JAN-2008 00:52:25	Twilight	41.000	75	26Eps Sco	2.2910	4250.0	82	30717	No
14	GOM_TRA_1PNPDE20080115_005738_000000412065_00102_30717_7576.N1	15-JAN-2008 00:57:38	Dark	40.500	109	Bet Lup	2.6770	26000.	81	30717	No
15	GOM_TRA_1PNPDE20080115_005909_000000402065_00102_30717_7577.N1	15-JAN-2008 00:59:09	Dark	40.000	78	Alp Lup	2.3040	28000.	80	30717	No
16	GOM_TRA_1PNPDE20080115_010147_000000542065_00103_30718_7578.N1	15-JAN-2008 01:01:47	Dark	53.500	4	Alp1Cen	-0.010000	5800.0	107	30718	No
17	GOM_TRA_1PNPDE20080115_010924_000000382065_00103_30718_7579.N1	15-JAN-2008 01:09:24	Dark	38.000	124	The Car	2.7640	30000.	76	30718	No
18	GOM_TRA_1PNPDE20080115_011048_000000412065_00103_30718_7580.N1	15-JAN-2008 01:10:48	Dark	41.000	29	Bet Car	1.6720	10200.	82	30718	No
19	GOM_TRA_1PNPDE20080115_011242_000000442065_00103_30718_7581.N1	15-JAN-2008 01:12:42	Dark	43.500	71	Iot Car	2.2460	7700.0	87	30718	No
20	GOM_TRA_1PNPDE20080115_011358_000000442065_00103_30718_7582.N1	15-JAN-2008 01:13:58	Dark	44.000	41	Eps Car	1.8600	4100.0	88	30718	No
21	GOM_TRA_1PNPDE20080115_011737_000000482065_00103_30718_7583.N1	15-JAN-2008 01:17:37	Dark	48.000	2	Alp Car	-0.73600	7000.0	96	30718	No
22	GOM_TRA_1PNPDE20080115_011927_000000392065_00103_30718_7584.N1	15-JAN-2008 01:19:27	Dark	39.000	70	Zet Pup	2.2460	39000.	78	30718	No
23	GOM_TRA_1PNPDE20080115_012108_000000432065_00103_30718_7585.N1	15-JAN-2008 01:21:08	Straylight	43.000	117	Pi Pup	2.7060	3800.0	86	30718	No
24	GOM_TRA_1PNPDE20080115_012342_000000432065_00103_30718_7586.N1	15-JAN-2008 01:23:42	Straylight	42.500	23	21Eps CMa	1.5020	26000.	85	30718	No
25	GOM_TRA_1PNPDE20080115_012508_000000412065_00103_30718_7587.N1	15-JAN-2008 01:25:08	Straylight	40.500	179	24Omi2CMa	3.0320	24000.	81	30718	No
26	GOM_TRA_1PNPDE20080115_012722_000000462065_00103_30718_7588.N1	15-JAN-2008 01:27:22	Straylight	45.500	1	9Alp CMa	-1.4400	11000.	91	30718	No
27	GOM_TRA_1PNPDE20080115_012951_000000402065_00103_30718_7589.N1	15-JAN-2008 01:29:51	Straylight	40.000	56	53Kap Ori	2.0650	30000.	80	30718	No
28	GOM_TRA_1PNPDE20080115_013101_000000392065_00103_30718_7590.N1	15-JAN-2008 01:31:01	Straylight	39.000	125	44Iot Ori	2.7700	30000.	78	30718	No
29	GOM_TRA_1PNPDE20080115_013219_000000412065_00103_30718_7591.N1	15-JAN-2008 01:32:19	Twi_and_stray	40.500	30	46Eps Ori	1.6940	30000.	81	30718	No
30	GOM_TRA_1PNPDE20080115_013433_000000502065_00103_30718_7592.N1	15-JAN-2008 01:34:33	Twi_and_stray	50.000	14	58Alp Ori	0.87000	3000.0	100	30718	No
31	GOM_TRA_1PNPDE20080115_013705_000000412065_00103_30718_7593.N1	15-JAN-2008 01:37:05	Bright	40.500	44	24Gam Gem	1.9280	11000.	81	30718	No
32	GOM_TRA_1PNPDE20080115_013829_000000362065_00103_30718_7594.N1	15-JAN-2008 01:38:29	Bright	35.500	176	23Zet Tau	3.0200	22000.	71	30718	No
33	GOM_TRA_1PNPDE20080115_014038_000000382065_00103_30718_7595.N1	15-JAN-2008 01:40:38	Bright	37.500	28	12Bet Tau	1.6500	15200.	75	30718	No
34	GOM_TRA_1PNPDE20080115_014212_000000382065_00103_30718_7596.N1	15-JAN-2008 01:42:12	Bright	38.000	114	3Iot Aur	2.6930	4600.0	76	30718	No
35	GOM_TRA_1PNPDE20080115_014507_000000372065_00103_30718_7597.N1	15-JAN-2008 01:45:07	Bright	37.000	42	34Bet Aur	1.9000	10200.	74	30718	No
36	GOM_TRA_1PNPDE20080115_015740_000000352065_00103_30718_7598.N1	15-JAN-2008 01:57:40	Bright	34.500	49	1Alp UMi	1.9900	6300.0	69	30718	No
37	GOM_TRA_1PNPDE20080115_020558_000000442065_00103_30718_7599.N1	15-JAN-2008 02:05:58	Bright	44.000	119	14Eta Dra	2.7270	4700.0	88	30718	No
38	GOM_TRA_1PNPDE20080115_020831_000000522065_00103_30718_7600.N1	15-JAN-2008 02:08:31	Bright	52.000	130	23Bet Dra	2.7990	5800.0	104	30718	No
39	GOM_TRA_1PNPDE20080115_021447_000000542065_00103_30718_7601.N1	15-JAN-2008 02:14:47	Bright	54.000	133	40Zet Her	2.8070	6000.0	108	30718	No
40	GOM_TRA_1PNPDE20080115_021752_000000552065_00103_30718_7602.N1	15-JAN-2008 02:17:52	Bright	55.000	127	27Bet Her	2.7810	4700.0	110	30718	No
41	GOM_TRA_1PNPDE20080115_021935_000000332065_00103_30718_7603.N1	15-JAN-2008 02:19:35	Bright	32.500	59	55Alp Oph	2.0800	8900.0	65	30718	No
42	GOM_TRA_1PNPDE20080115_022528_000000392065_00103_30718_7720.N1	15-JAN-2008 02:25:28	Bright	39.000	120	1Del Oph	2.7340	3200.0	78	30718	No
43	GOM_TRA_1PNPDE20080115_022651_000000362065_00103_30718_7721.N1	15-JAN-2008 02:26:51	Bright	35.500	98	13Zet Oph	2.5710	30000.	71	30718	No
44	GOM_TRA_1PNPDE20080115_023118_000000502065_00103_30718_7722.N1	15-JAN-2008 02:31:18	Twi_and_stray	49.500	16	21Alp Sco	1.0200	3000.0	99	30718	No
45	GOM_TRA_1PNPDE20080115_023301_000000452065_00103_30718_7723.N1	15-JAN-2008 02:33:01	Twilight	44.500	75	26Eps Sco	2.2910	4250.0	89	30718	No
46	GOM_TRA_1PNPDE20080115_023814_000000432065_00103_30718_7724.N1	15-JAN-2008 02:38:14	Dark	42.500	109	Bet Lup	2.6770	26000.	85	30718	No
47	GOM_TRA_1PNPDE20080115_023945_000000412065_00103_30718_7725.N1	15-JAN-2008 02:39:45	Dark	40.500	78	Alp Lup	2.3040	28000.	81	30718	No
48	GOM_TRA_1PNPDE20080115_024223_000000412065_00104_30719_7726.N1	15-JAN-2008 02:42:23	Dark	40.500	4	Alp1Cen	-0.010000	5800.0	81	30719	No
49	GOM_TRA_1PNPDE20080115_025000_000000382065_00104_30719_7727.N1	15-JAN-2008 02:50:00	Dark	37.500	124	The Car	2.7640	30000.	75	30719	No
50	GOM_TRA_1PNPDE20080115_025125_000000372065_00104_30719_7728.N1	15-JAN-2008 02:51:25	Dark	37.000	29	Bet Car	1.6720	10200.	74	30719	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:	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)

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:	15.914	15.683	11.173
St. deviation:	5.4922	8.4900	2.0753
Maximum:	21.840	29.525	12.640
Minimum:	3.4575	3.4345	9.7053
Number of data:	14.000	24.000	2.0000

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:	0.080467	-1.3032	0.0036627	-1.3177
St. deviation:	0.64390	0.90214	0.70676	1.0112
Maximum:	3.9000	9.3000	5.1000	3.8000
Minimum:	-6.3000	-5.9000	-4.5000	-6.3000
Number of data:	12650.	12650.	19800.	19800.

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	15-JAN-2008 00:00:02
CALIBRATION_DATABASE	GOM_CAL_AXVIEC20080109_125406_20080107_000000_20100101_000000	1	15-JAN-2008 00:00:02
LEVEL-1B_PROC_CONFIG	GOM_PR1_AXNIEC20050627_151042_20020301_000000_20100101_000000	1	15-JAN-2008 00:00:02
STAR_CATALOGUE	GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000	1	15-JAN-2008 00:00:02
STELLAR_SPECTRA_DATABANK	GOM_STS_AXNIEC20040308_103538_20020101_160000_20100101_000000	1	15-JAN-2008 00:00:02
ECMWF_FILE	AUX_ECF_AXNECM20080114_073110_20080114_210000_20080115_090000	1	15-JAN-2008 00:00:02
OPTIONAL_ECMWF_FILE	MISSING	1	15-JAN-2008 00:00:02
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20080114_212318_000057382065_00100_30715_4950.N1	1	15-JAN-2008 00:00:02
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20080114_230415_000057382065_00101_30716_4951.N1	12	15-JAN-2008 00:50:42
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20080115_004512_000054202065_00102_30717_4952.N1	42	15-JAN-2008 02:25:28

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