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	02APR2008 07:45:14
Data source version	GOMOS/5.00
Start time of products	28-03-2008 (28MAR2008 00:00:00)
Stop time of products	29-03-2008 (29MAR2008 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
28-MAR-2008 04:59:00	29GamVir	121	31765
28-MAR-2008 05:03:37	94BetLeo	62	31765
28-MAR-2008 05:05:08	68DelLeo	96	31765
28-MAR-2008 05:12:01	52PsiUMa	174	31765
28-MAR-2008 05:15:20	48BetUMa	82	31765
28-MAR-2008 05:16:52	50AlpUMa	36	31765
28-MAR-2008 05:23:24	7BetUMi	60	31765
28-MAR-2008 05:32:34	5AlpCep	89	31765
28-MAR-2008 05:37:36	18DelCyg	144	31765
28-MAR-2008 05:39:22	37GamCyg	66	31765
28-MAR-2008 05:41:19	53EpsCyg	92	31765
28-MAR-2008 05:50:53	53AlpAql	11	31765
28-MAR-2008 06:02:13	DSA1040	0	31765
28-MAR-2008 06:04:35	34SigSgr	57	31765
28-MAR-2008 06:08:11	20EpsSgr	38	31766
28-MAR-2008 06:12:19	35LamSco	25	31766
28-MAR-2008 06:16:16	BetTrA	134	31766
28-MAR-2008 06:18:57	Alp1Cen	4	31766
28-MAR-2008 06:21:33	AlpLup	78	31766
28-MAR-2008 06:23:09	EtaCen	81	31766
28-MAR-2008 06:25:58	5TheCen	54	31766
28-MAR-2008 06:32:16	9BetCrv	106	31766
28-MAR-2008 06:34:17	4GamCrv	100	31766
28-MAR-2008 21:31:27	5TheCen	54	31775
28-MAR-2008 21:37:41	9BetCrv	106	31775
28-MAR-2008 21:39:42	4GamCrv	100	31775
28-MAR-2008 21:44:57	29GamVir	121	31775
28-MAR-2008 21:49:35	94BetLeo	62	31775
28-MAR-2008 21:51:07	68DelLeo	96	31775
28-MAR-2008 21:57:59	52PsiUMa	174	31775
28-MAR-2008 22:01:18	48BetUMa	82	31775
28-MAR-2008 22:02:50	50AlpUMa	36	31775
28-MAR-2008 22:09:20	7BetUMi	60	31775
28-MAR-2008 22:18:33	5AlpCep	89	31775
28-MAR-2008 22:23:34	18DelCyg	144	31775
28-MAR-2008 22:25:22	37GamCyg	66	31775
28-MAR-2008 22:27:19	53EpsCyg	92	31775
28-MAR-2008 22:37:00	53AlpAql	11	31775
28-MAR-2008 22:48:20	DSA1040	0	31775
28-MAR-2008 22:50:47	34SigSgr	57	31775
28-MAR-2008 22:54:23	20EpsSgr	38	31776
28-MAR-2008 22:58:17	TheSco	40	31776
28-MAR-2008 23:02:21	BetTrA	134	31776
28-MAR-2008 23:05:01	Alp1Cen	4	31776
28-MAR-2008 23:07:39	AlpLup	78	31776
28-MAR-2008 23:09:15	EtaCen	81	31776
28-MAR-2008 23:12:03	5TheCen	54	31776

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_1PNPDE20080328_000153_000000402067_00145_31762_4615.N1	28-MAR-2008 00:01:53	Bright	40.000	62	94Bet Leo	2.1360	9700.0	80	31762	No
2	GOM_TRA_1PNPDE20080328_000324_000000362067_00145_31762_4616.N1	28-MAR-2008 00:03:24	Bright	36.000	96	68Del Leo	2.5600	9300.0	72	31762	No
3	GOM_TRA_1PNPDE20080328_001016_000000352067_00145_31762_4617.N1	28-MAR-2008 00:10:16	Bright	35.000	174	52Psi UMa	3.0040	4400.0	70	31762	No
4	GOM_TRA_1PNPDE20080328_001335_000000372067_00145_31762_4618.N1	28-MAR-2008 00:13:35	Bright	36.500	82	48Bet UMa	2.3650	10600.	73	31762	No
5	GOM_TRA_1PNPDE20080328_001507_000000382067_00145_31762_4619.N1	28-MAR-2008 00:15:07	Bright	37.500	36	50Alp UMa	1.8000	6300.0	75	31762	No
6	GOM_TRA_1PNPDE20080328_002140_000000392067_00145_31762_4620.N1	28-MAR-2008 00:21:40	Bright	38.500	60	7Bet UMi	2.0810	3950.0	77	31762	No
7	GOM_TRA_1PNPDE20080328_003049_000000362067_00145_31762_4621.N1	28-MAR-2008 00:30:49	Bright	36.000	89	5Alp Cep	2.4510	8000.0	72	31762	No
8	GOM_TRA_1PNPDE20080328_003551_000000442067_00145_31762_4622.N1	28-MAR-2008 00:35:51	Bright	44.000	144	18Del Cyg	2.8600	11000.	88	31762	No
9	GOM_TRA_1PNPDE20080328_003737_000000412067_00145_31762_4623.N1	28-MAR-2008 00:37:37	Bright	41.000	66	37Gam Cyg	2.2080	5900.0	82	31762	No
10	GOM_TRA_1PNPDE20080328_003933_000000412067_00145_31762_4624.N1	28-MAR-2008 00:39:33	Bright	40.500	92	53Eps Cyg	2.5000	4500.0	81	31762	No
11	GOM_TRA_1PNPDE20080328_004906_000000632067_00145_31762_4625.N1	28-MAR-2008 00:49:06	Dark	63.000	11	53Alp Aql	0.76500	8000.0	126	31762	No
12	GOM_TRA_1PNPDE20080328_010622_000000522067_00146_31763_4627.N1	28-MAR-2008 01:06:22	Dark	51.500	38	20Eps Sgr	1.8360	11000.	103	31763	No
13	GOM_TRA_1PNPDE20080328_011030_000000302067_00146_31763_4628.N1	28-MAR-2008 01:10:30	Dark	30.000	25	35Lam Sco	1.6200	28000.	60	31763	No
14	GOM_TRA_1PNPDE20080328_011430_000000392067_00146_31763_4629.N1	28-MAR-2008 01:14:30	Dark	38.500	134	Bet TrA	2.8100	6600.0	77	31763	No
15	GOM_TRA_1PNPDE20080328_011710_000000552067_00146_31763_4630.N1	28-MAR-2008 01:17:10	Dark	55.000	4	Alp1Cen	-0.010000	5800.0	110	31763	No
16	GOM_TRA_1PNPDE20080328_011946_000000462067_00146_31763_4631.N1	28-MAR-2008 01:19:46	Straylight	46.000	78	Alp Lup	2.3040	28000.	92	31763	No
17	GOM_TRA_1PNPDE20080328_012121_000000462067_00146_31763_4632.N1	28-MAR-2008 01:21:21	Straylight	46.000	81	Eta Cen	2.3560	28000.	92	31763	No
18	GOM_TRA_1PNPDE20080328_012258_000000402067_00146_31763_4633.N1	28-MAR-2008 01:22:58	Straylight	39.500	64	Gam Cen	2.2000	10600.	79	31763	No
19	GOM_TRA_1PNPDE20080328_012528_000000432067_00146_31763_4634.N1	28-MAR-2008 01:25:28	Straylight	43.000	123	Iot Cen	2.7500	10200.	86	31763	No
20	GOM_TRA_1PNPDE20080328_013030_000000462067_00146_31763_4750.N1	28-MAR-2008 01:30:30	Straylight	45.500	106	9Bet Crv	2.6480	5600.0	91	31763	No
21	GOM_TRA_1PNPDE20080328_013232_000000442067_00146_31763_4751.N1	28-MAR-2008 01:32:32	Twi_and_stray	44.000	100	4Gam Crv	2.5800	13100.	88	31763	No
22	GOM_TRA_1PNPDE20080328_013751_000000472067_00146_31763_4752.N1	28-MAR-2008 01:37:51	Bright	46.500	121	29Gam Vir	2.7400	7200.0	93	31763	No
23	GOM_TRA_1PNPDE20080328_014228_000000392067_00146_31763_4753.N1	28-MAR-2008 01:42:28	Bright	38.500	62	94Bet Leo	2.1360	9700.0	77	31763	No
24	GOM_TRA_1PNPDE20080328_014400_000000372067_00146_31763_4754.N1	28-MAR-2008 01:44:00	Bright	37.000	96	68Del Leo	2.5600	9300.0	74	31763	No
25	GOM_TRA_1PNPDE20080328_015052_000000382067_00146_31763_4755.N1	28-MAR-2008 01:50:52	Bright	37.500	174	52Psi UMa	3.0040	4400.0	75	31763	No
26	GOM_TRA_1PNPDE20080328_015411_000000362067_00146_31763_4756.N1	28-MAR-2008 01:54:11	Bright	36.000	82	48Bet UMa	2.3650	10600.	72	31763	No
27	GOM_TRA_1PNPDE20080328_015543_000000352067_00146_31763_4757.N1	28-MAR-2008 01:55:43	Bright	35.000	36	50Alp UMa	1.8000	6300.0	70	31763	No
28	GOM_TRA_1PNPDE20080328_020216_000000402067_00146_31763_4758.N1	28-MAR-2008 02:02:16	Bright	39.500	60	7Bet UMi	2.0810	3950.0	79	31763	No
29	GOM_TRA_1PNPDE20080328_021125_000000362067_00146_31763_4759.N1	28-MAR-2008 02:11:25	Bright	35.500	89	5Alp Cep	2.4510	8000.0	71	31763	No
30	GOM_TRA_1PNPDE20080328_021627_000000652067_00146_31763_4760.N1	28-MAR-2008 02:16:27	Bright	64.500	144	18Del Cyg	2.8600	11000.	129	31763	No
31	GOM_TRA_1PNPDE20080328_021813_000000422067_00146_31763_4761.N1	28-MAR-2008 02:18:13	Bright	42.000	66	37Gam Cyg	2.2080	5900.0	84	31763	No
32	GOM_TRA_1PNPDE20080328_022009_000000402067_00146_31763_4762.N1	28-MAR-2008 02:20:09	Bright	39.500	92	53Eps Cyg	2.5000	4500.0	79	31763	No
33	GOM_TRA_1PNPDE20080328_022943_000000612067_00146_31763_4763.N1	28-MAR-2008 02:29:43	Dark	61.000	11	53Alp Aql	0.76500	8000.0	122	31763	No
34	GOM_TRA_1PNPDE20080328_024659_000000522067_00147_31764_4765.N1	28-MAR-2008 02:46:59	Dark	52.000	38	20Eps Sgr	1.8360	11000.	104	31764	No
35	GOM_TRA_1PNPDE20080328_025108_000000272067_00147_31764_4766.N1	28-MAR-2008 02:51:08	Dark	27.000	25	35Lam Sco	1.6200	28000.	54	31764	No
36	GOM_TRA_1PNPDE20080328_025506_000000412067_00147_31764_4767.N1	28-MAR-2008 02:55:06	Dark	40.500	134	Bet TrA	2.8100	6600.0	81	31764	No
37	GOM_TRA_1PNPDE20080328_025747_000000562067_00147_31764_4768.N1	28-MAR-2008 02:57:47	Dark	56.000	4	Alp1Cen	-0.010000	5800.0	112	31764	No
38	GOM_TRA_1PNPDE20080328_030023_000000462067_00147_31764_4769.N1	28-MAR-2008 03:00:23	Straylight	45.500	78	Alp Lup	2.3040	28000.	91	31764	No
39	GOM_TRA_1PNPDE20080328_030158_000000492067_00147_31764_4770.N1	28-MAR-2008 03:01:58	Straylight	48.500	81	Eta Cen	2.3560	28000.	97	31764	No
40	GOM_TRA_1PNPDE20080328_030334_000000402067_00147_31764_4771.N1	28-MAR-2008 03:03:34	Straylight	39.500	64	Gam Cen	2.2000	10600.	79	31764	No
41	GOM_TRA_1PNPDE20080328_030605_000000462067_00147_31764_4772.N1	28-MAR-2008 03:06:05	Straylight	45.500	123	Iot Cen	2.7500	10200.	91	31764	No
42	GOM_TRA_1PNPDE20080328_031106_000000452067_00147_31764_4773.N1	28-MAR-2008 03:11:06	Straylight	45.000	106	9Bet Crv	2.6480	5600.0	90	31764	No
43	GOM_TRA_1PNPDE20080328_031308_000000442067_00147_31764_4879.N1	28-MAR-2008 03:13:08	Twi_and_stray	43.500	100	4Gam Crv	2.5800	13100.	87	31764	No
44	GOM_TRA_1PNPDE20080328_031827_000000472067_00147_31764_4880.N1	28-MAR-2008 03:18:27	Bright	46.500	121	29Gam Vir	2.7400	7200.0	93	31764	No
45	GOM_TRA_1PNPDE20080328_032304_000000392067_00147_31764_4881.N1	28-MAR-2008 03:23:04	Bright	39.000	62	94Bet Leo	2.1360	9700.0	78	31764	No
46	GOM_TRA_1PNPDE20080328_032435_000000542067_00147_31764_4882.N1	28-MAR-2008 03:24:35	Bright	54.000	96	68Del Leo	2.5600	9300.0	108	31764	No
47	GOM_TRA_1PNPDE20080328_033128_000000372067_00147_31764_4883.N1	28-MAR-2008 03:31:28	Bright	37.000	174	52Psi UMa	3.0040	4400.0	74	31764	No
48	GOM_TRA_1PNPDE20080328_033447_000000362067_00147_31764_4884.N1	28-MAR-2008 03:34:47	Bright	36.000	82	48Bet UMa	2.3650	10600.	72	31764	No
49	GOM_TRA_1PNPDE20080328_033619_000000372067_00147_31764_4885.N1	28-MAR-2008 03:36:19	Bright	36.500	36	50Alp UMa	1.8000	6300.0	73	31764	No
50	GOM_TRA_1PNPDE20080328_034251_000000422067_00147_31764_4886.N1	28-MAR-2008 03:42:51	Bright	41.500	60	7Bet UMi	2.0810	3950.0	83	31764	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:	10.0000 %
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:	24.938	19.558	NaN
St. deviation:	26.140	4.7011	NaN
Maximum:	76.234	24.157	NaN
Minimum:	3.1939	3.6990	NaN
Number of data:	10.000	28.000	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:	0.30429	-1.1037	0.18477	-1.2189
St. deviation:	0.43489	0.56164	0.77252	0.91632
Maximum:	3.1000	1.4000	5.3000	3.5000
Minimum:	-2.7000	-4.3000	-4.3000	-6.9000
Number of data:	11250.	11250.	24700.	24700.

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	28-MAR-2008 00:01:53
CALIBRATION_DATABASE	GOM_CAL_AXVIEC20080320_095048_20080317_000000_20100101_000000	1	28-MAR-2008 00:01:53
LEVEL-1B_PROC_CONFIG	GOM_PR1_AXNIEC20050627_151042_20020301_000000_20100101_000000	1	28-MAR-2008 00:01:53
STAR_CATALOGUE	GOM_CAT_AXVIEC20020121_161009_20020101_000000_20200101_000000	1	28-MAR-2008 00:01:53
STELLAR_SPECTRA_DATABANK	GOM_STS_AXNIEC20040308_103538_20020101_160000_20100101_000000	1	28-MAR-2008 00:01:53
ECMWF_FILE	AUX_ECF_AXNECM20080327_072115_20080327_210000_20080328_090000	1	28-MAR-2008 00:01:53
ECMWF_FILE	AUX_ECF_AXNECM20080327_190117_20080328_030000_20080328_150000	43	28-MAR-2008 03:13:08
OPTIONAL_ECMWF_FILE	MISSING	1	28-MAR-2008 00:01:53
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20080327_220019_000060572067_00144_31761_5284.N1	1	28-MAR-2008 00:01:53
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20080327_234635_000057382067_00145_31762_5285.N1	20	28-MAR-2008 01:30:30
ORBIT_DATA_FILE	DOR_NAV_0PNPDE20080328_012732_000057382067_00146_31763_5286.N1	43	28-MAR-2008 03:13:08

Reports

Daily Report Level 2 Dataset IPF v6.01

Daily Reports of NRT data

Data Anomaly Reports

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Last modified:
24-Apr-2008