ASTROSAT CZTI

Data Quality Report

Orbit 12969

Creation date: 2024-06-27T16:34:34.571378
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information

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date-obs: 2018-02-20
time-obs: 06:36:35.774700000
date-end: 2018-02-20
time-end: 08:58:17.770200000
obs_id: A04_112T01_9000001908
exposure: 3971.90587889
sourceid: LMC X-3
observer: anuj
ra_pnt: 84.73454
dec_pnt: -64.08417

Basic statistics of files

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Param	Original file	Final file
Filename	modeM0/AS1A04_112T01_9000001908_12969cztM0_level2.evt	modeM0/AS1A04_112T01_9000001908_12969cztM0_level2_quad_clean.evt
Size (bytes)	482,140,800	88,274,880
Size	459.8 MB	84.2 MB
Events in quadrant A	3,512,031	562,919
Events in quadrant B	3,800,735	556,916
Events in quadrant C	3,200,862	573,767
Events in quadrant D	3,667,001	546,599

Level1 data integrity

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Mode SS
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	126	0
B	0	126	0
C	0	126	0
D	0	126	0

Mode M0
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	14251	3
B	0	15093	2
C	0	13387	2
D	0	14743	2

Mode M9
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	23	0
B	0	23	0
C	0	23	0
D	0	24	0

Data saturation

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Quadrant	Total seconds	Saturated seconds	Saturation percentage
A	6202	108	1.741374%
B	6202	320	5.159626%
C	6202	100	1.612383%
D	6202	137	2.208965%

Noise dominated fraction

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Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant	# 1 sec bins	Bins with >0 counts	Bins with >2000 counts	High rate bins dominated by noise	Noise dominated (total time)	Noise dominated (detector-on time)
A	7528	6204	2	2	0.03%	0.03%
B	7528	6204	136	136	1.81%	2.19%
C	7528	6204	7	7	0.09%	0.11%