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	22APR2008 05:32:49
Data source version	GOMOS/5.00
Start time of products	QDS_YESTERDAY(/START)-1D (20APR2008 00:00:00)
Stop time of products	QDS_YESTERDAY(/STOP)-1D (21APR2008 00:00:00)
Store outputs in DB	Yes
Nb of level 1b prods	49
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
20-APR-2008 14:35:15	7DelCrv	163	32100
20-APR-2008 14:39:25	29GamVir	121	32100
20-APR-2008 14:44:15	94BetLeo	62	32100
20-APR-2008 14:46:20	68DelLeo	96	32100
20-APR-2008 14:52:52	52PsiUMa	174	32100
20-APR-2008 14:55:05	64GamUMa	87	32100
20-APR-2008 14:57:34	50AlpUMa	36	32100
20-APR-2008 15:05:29	1AlpUMi	49	32100
20-APR-2008 15:12:56	37DelCas	110	32100
20-APR-2008 15:14:27	18AlpCas	68	32100
20-APR-2008 15:23:17	53BetPeg	93	32100
20-APR-2008 15:27:00	54AlpPeg	90	32100
20-APR-2008 15:39:30	24AlpPsA	18	32100
20-APR-2008 15:43:03	DSA1035	0	32100
20-APR-2008 15:45:04	AlpGru	31	32100
20-APR-2008 15:50:14	AlpPav	45	32101
20-APR-2008 15:57:25	AlpTrA	43	32101
20-APR-2008 15:59:33	BetTrA	134	32101
20-APR-2008 16:01:50	Alp1Cen	4	32101
20-APR-2008 16:03:48	BetCru	20	32101
20-APR-2008 16:06:46	GamCen	64	32101
20-APR-2008 22:05:42	53BetPeg	93	32104
20-APR-2008 22:09:24	54AlpPeg	90	32104
20-APR-2008 22:21:55	24AlpPsA	18	32104
20-APR-2008 22:25:27	DSA1035	0	32104
20-APR-2008 22:27:29	AlpGru	31	32104
20-APR-2008 22:30:31	AlpTuc	148	32104
20-APR-2008 22:32:40	AlpPav	45	32105
20-APR-2008 22:39:50	AlpTrA	43	32105
20-APR-2008 22:41:59	BetTrA	134	32105
20-APR-2008 22:44:16	Alp1Cen	4	32105
20-APR-2008 22:46:12	BetCru	20	32105
20-APR-2008 22:49:11	GamCen	64	32105
20-APR-2008 22:52:02	IotCen	123	32105
20-APR-2008 22:56:18	9BetCrv	106	32105
20-APR-2008 22:58:15	7DelCrv	163	32105
20-APR-2008 23:02:25	29GamVir	121	32105
20-APR-2008 23:07:15	94BetLeo	62	32105
20-APR-2008 23:09:21	68DelLeo	96	32105
20-APR-2008 23:15:53	52PsiUMa	174	32105
20-APR-2008 23:18:05	64GamUMa	87	32105
20-APR-2008 23:20:35	50AlpUMa	36	32105
20-APR-2008 23:28:28	1AlpUMi	49	32105
20-APR-2008 23:35:57	37DelCas	110	32105
20-APR-2008 23:37:27	18AlpCas	68	32105
20-APR-2008 23:46:18	53BetPeg	93	32105
20-APR-2008 23:50:00	54AlpPeg	90	32105

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_1PNPDE20080420_003404_000000452067_00474_32091_0128.N1	20-APR-2008 00:34:04	Dark	44.500	18	24Alp PsA	1.1660	9700.0	89	32091	No
2	GOM_TRA_1PNPDE20080420_003937_000000422067_00474_32091_0129.N1	20-APR-2008 00:39:37	Dark	42.000	31	Alp Gru	1.7340	15200.	84	32091	No
3	GOM_TRA_1PNPDE20080420_004241_000000412067_00474_32091_0130.N1	20-APR-2008 00:42:41	Dark	41.000	148	Alp Tuc	2.8780	4100.0	82	32091	No
4	GOM_TRA_1PNPDE20080420_004446_000000392067_00475_32092_0131.N1	20-APR-2008 00:44:46	Dark	39.000	45	Alp Pav	1.9400	26000.	78	32092	No
5	GOM_TRA_1PNPDE20080420_005158_000000422067_00475_32092_0132.N1	20-APR-2008 00:51:58	Dark	41.500	43	Alp TrA	1.9100	4250.0	83	32092	No
6	GOM_TRA_1PNPDE20080420_005406_000000402067_00475_32092_0133.N1	20-APR-2008 00:54:06	Straylight	39.500	134	Bet TrA	2.8100	6600.0	79	32092	No
7	GOM_TRA_1PNPDE20080420_005624_000000532067_00475_32092_0134.N1	20-APR-2008 00:56:24	Straylight	53.000	4	Alp1Cen	-0.010000	5800.0	106	32092	No
8	GOM_TRA_1PNPDE20080420_005823_000000422067_00475_32092_0135.N1	20-APR-2008 00:58:23	Straylight	41.500	20	Bet Cru	1.2530	30000.	83	32092	No
9	GOM_TRA_1PNPDE20080420_010121_000000402067_00475_32092_0136.N1	20-APR-2008 01:01:21	Straylight	39.500	64	Gam Cen	2.2000	10600.	79	32092	No
10	GOM_TRA_1PNPDE20080420_010412_000000382067_00475_32092_0137.N1	20-APR-2008 01:04:12	Straylight	38.000	123	Iot Cen	2.7500	10200.	76	32092	No
11	GOM_TRA_1PNPDE20080420_010829_000000392067_00475_32092_0138.N1	20-APR-2008 01:08:29	Twi_and_stray	39.000	106	9Bet Crv	2.6480	5600.0	78	32092	No
12	GOM_TRA_1PNPDE20080420_011027_000000382067_00475_32092_0139.N1	20-APR-2008 01:10:27	Bright	37.500	163	7Del Crv	2.9450	11000.	75	32092	No
13	GOM_TRA_1PNPDE20080420_011437_000000372067_00475_32092_0140.N1	20-APR-2008 01:14:37	Bright	36.500	121	29Gam Vir	2.7400	7200.0	73	32092	No
14	GOM_TRA_1PNPDE20080420_011926_000000352067_00475_32092_0141.N1	20-APR-2008 01:19:26	Bright	35.000	62	94Bet Leo	2.1360	9700.0	70	32092	No
15	GOM_TRA_1PNPDE20080420_012131_000000362067_00475_32092_0142.N1	20-APR-2008 01:21:31	Bright	35.500	96	68Del Leo	2.5600	9300.0	71	32092	No
16	GOM_TRA_1PNPDE20080420_012803_000000362067_00475_32092_0143.N1	20-APR-2008 01:28:03	Bright	36.000	174	52Psi UMa	3.0040	4400.0	72	32092	No
17	GOM_TRA_1PNPDE20080420_013017_000000362067_00475_32092_0144.N1	20-APR-2008 01:30:17	Bright	35.500	87	64Gam UMa	2.4330	11000.	71	32092	No
18	GOM_TRA_1PNPDE20080420_013246_000000362067_00475_32092_0145.N1	20-APR-2008 01:32:46	Bright	36.000	36	50Alp UMa	1.8000	6300.0	72	32092	No
19	GOM_TRA_1PNPDE20080420_014041_000000352067_00475_32092_0146.N1	20-APR-2008 01:40:41	Bright	35.000	49	1Alp UMi	1.9900	6300.0	70	32092	No
20	GOM_TRA_1PNPDE20080420_014807_000000462067_00475_32092_0147.N1	20-APR-2008 01:48:07	Bright	45.500	110	37Del Cas	2.6780	8900.0	91	32092	No
21	GOM_TRA_1PNPDE20080420_014938_000000352067_00475_32092_0148.N1	20-APR-2008 01:49:38	Bright	35.000	68	18Alp Cas	2.2250	4500.0	70	32092	No
22	GOM_TRA_1PNPDE20080420_015829_000000382067_00475_32092_0149.N1	20-APR-2008 01:58:29	Bright	37.500	93	53Bet Peg	2.5200	3100.0	75	32092	No
23	GOM_TRA_1PNPDE20080420_020211_000000422067_00475_32092_0150.N1	20-APR-2008 02:02:11	Twi_and_stray	42.000	90	54Alp Peg	2.4870	11000.	84	32092	No
24	GOM_TRA_1PNPDE20080420_021440_000000422067_00475_32092_0261.N1	20-APR-2008 02:14:40	Dark	41.500	18	24Alp PsA	1.1660	9700.0	83	32092	No
25	GOM_TRA_1PNPDE20080420_022013_000000392067_00475_32092_0262.N1	20-APR-2008 02:20:13	Dark	39.000	31	Alp Gru	1.7340	15200.	78	32092	No
26	GOM_TRA_1PNPDE20080420_022317_000000382067_00475_32092_0263.N1	20-APR-2008 02:23:17	Dark	38.000	148	Alp Tuc	2.8780	4100.0	76	32092	No
27	GOM_TRA_1PNPDE20080420_022523_000000412067_00476_32093_0264.N1	20-APR-2008 02:25:23	Dark	40.500	45	Alp Pav	1.9400	26000.	81	32093	No
28	GOM_TRA_1PNPDE20080420_023234_000000382067_00476_32093_0265.N1	20-APR-2008 02:32:34	Dark	38.000	43	Alp TrA	1.9100	4250.0	76	32093	No
29	GOM_TRA_1PNPDE20080420_023443_000000392067_00476_32093_0266.N1	20-APR-2008 02:34:43	Straylight	39.000	134	Bet TrA	2.8100	6600.0	78	32093	No
30	GOM_TRA_1PNPDE20080420_023701_000000532067_00476_32093_0267.N1	20-APR-2008 02:37:01	Straylight	53.000	4	Alp1Cen	-0.010000	5800.0	106	32093	No
31	GOM_TRA_1PNPDE20080420_023859_000000432067_00476_32093_0268.N1	20-APR-2008 02:38:59	Straylight	42.500	20	Bet Cru	1.2530	30000.	85	32093	No
32	GOM_TRA_1PNPDE20080420_024157_000000422067_00476_32093_0269.N1	20-APR-2008 02:41:57	Straylight	42.000	64	Gam Cen	2.2000	10600.	84	32093	No
33	GOM_TRA_1PNPDE20080420_024448_000000392067_00476_32093_0270.N1	20-APR-2008 02:44:48	Straylight	38.500	123	Iot Cen	2.7500	10200.	77	32093	No
34	GOM_TRA_1PNPDE20080420_024905_000000422067_00476_32093_0271.N1	20-APR-2008 02:49:05	Twi_and_stray	41.500	106	9Bet Crv	2.6480	5600.0	83	32093	No
35	GOM_TRA_1PNPDE20080420_025103_000000352067_00476_32093_0272.N1	20-APR-2008 02:51:03	Bright	35.000	163	7Del Crv	2.9450	11000.	70	32093	No
36	GOM_TRA_1PNPDE20080420_025513_000000372067_00476_32093_0273.N1	20-APR-2008 02:55:13	Bright	37.000	121	29Gam Vir	2.7400	7200.0	74	32093	No
37	GOM_TRA_1PNPDE20080420_030002_000000392067_00476_32093_0274.N1	20-APR-2008 03:00:02	Bright	39.000	62	94Bet Leo	2.1360	9700.0	78	32093	No
38	GOM_TRA_1PNPDE20080420_030207_000000352067_00476_32093_0275.N1	20-APR-2008 03:02:07	Bright	35.000	96	68Del Leo	2.5600	9300.0	70	32093	No
39	GOM_TRA_1PNPDE20080420_030839_000000362067_00476_32093_0276.N1	20-APR-2008 03:08:39	Bright	35.500	174	52Psi UMa	3.0040	4400.0	71	32093	No
40	GOM_TRA_1PNPDE20080420_031054_000000332067_00476_32093_0277.N1	20-APR-2008 03:10:54	Bright	33.000	87	64Gam UMa	2.4330	11000.	66	32093	No
41	GOM_TRA_1PNPDE20080420_031322_000000372067_00476_32093_0278.N1	20-APR-2008 03:13:22	Bright	36.500	36	50Alp UMa	1.8000	6300.0	73	32093	No
42	GOM_TRA_1PNPDE20080420_032117_000000332067_00476_32093_0279.N1	20-APR-2008 03:21:17	Bright	33.000	49	1Alp UMi	1.9900	6300.0	66	32093	No
43	GOM_TRA_1PNPDE20080420_032844_000000342067_00476_32093_0452.N1	20-APR-2008 03:28:44	Bright	33.500	110	37Del Cas	2.6780	8900.0	67	32093	No
44	GOM_TRA_1PNPDE20080420_033015_000000362067_00476_32093_0453.N1	20-APR-2008 03:30:15	Bright	35.500	68	18Alp Cas	2.2250	4500.0	71	32093	No
45	GOM_TRA_1PNPDE20080420_033905_000000382067_00476_32093_0454.N1	20-APR-2008 03:39:05	Bright	37.500	93	53Bet Peg	2.5200	3100.0	75	32093	No
46	GOM_TRA_1PNPDE20080420_034247_000000422067_00476_32093_0455.N1	20-APR-2008 03:42:47	Twi_and_stray	41.500	90	54Alp Peg	2.4870	11000.	83	32093	No
47	GOM_TRA_1PNPDE20080420_035516_000000432067_00476_32093_0456.N1	20-APR-2008 03:55:16	Dark	43.000	18	24Alp PsA	1.1660	9700.0	86	32093	No
48	GOM_TRA_1PNPDE20080420_040050_000000402067_00476_32093_0457.N1	20-APR-2008 04:00:50	Dark	39.500	31	Alp Gru	1.7340	15200.	79	32093	No
49	GOM_TRA_1PNPDE20080420_040353_000000442067_00476_32093_0458.N1	20-APR-2008 04:03:53	Dark	44.000	148	Alp Tuc	2.8780	4100.0	88	32093	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:	34.6939 %
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:	15.008	20.622	NaN
St. deviation:	3.4400	3.8824	NaN
Maximum:	19.855	27.430	NaN
Minimum:	9.7766	8.7233	NaN
Number of data:	13.000	22.000	NaN

6.2 Plot for DARK limb products

6.3 Plot for BRIGHT 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:	0.030671	-1.4276	-0.018033	-1.3506
St. deviation:	0.40828	0.60267	0.81435	0.97537
Maximum:	2.4000	0.30000	5.2000	3.8000
Minimum:	-1.9000	-5.0000	-4.8000	-7.1000
Number of data:	11450.	11450.	18100.	18100.

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	20-APR-2008 00:34:04
CALIBRATION_DATABASE	GOM_CAL_AXVIEC20080408_074258_20080406_000000_20100101_000000	1	20-APR-2008 00:34:04
LEVEL-1B_PROC_CONFIG	GOM_PR1_AXNIEC20050627_151042_20020301_000000_20100101_000000	1	20-APR-2008 00:34:04
STAR_CATALOGUE	GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000	1	20-APR-2008 00:34:04
STELLAR_SPECTRA_DATABANK	GOM_STS_AXNIEC20040308_103538_20020101_160000_20100101_000000	1	20-APR-2008 00:34:04
ECMWF_FILE	AUX_ECF_AXNECM20080419_072113_20080419_210000_20080420_090000	1	20-APR-2008 00:34:04
ECMWF_FILE	AUX_ECF_AXNECM20080419_190114_20080420_030000_20080420_150000	43	20-APR-2008 03:28:44
OPTIONAL_ECMWF_FILE	MISSING	1	20-APR-2008 00:34:04
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20080419_224516_000060572067_00473_32090_5371.N1	1	20-APR-2008 00:34:04
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20080420_002613_000057382067_00474_32091_5372.N1	24	20-APR-2008 02:14:40
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20080420_020710_000044632067_00475_32092_5373.N1	43	20-APR-2008 03:28:44

Reports

Daily Report Level 2 Dataset IPF v6.01

Daily Reports of NRT data

Data Anomaly Reports

Instrument Anomaly Reports

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Last modified:
24-Apr-2008