ASTROSAT CZTI

Data Quality Report

Orbit 20210731_A10_094T73_9000004606_level2

Creation date: 2021-08-04T13:42:08.885472
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: 2021-07-31
time-obs: 19:51:39.449400000
date-end: 2021-07-31
time-end: 22:36:32.037600000
obs_id: A10_094T73_9000004606
exposure: 7002.19261962
sourceid: LMC-73
observer: dthilker
ra_pnt: 77.70406
dec_pnt: -68.67072

Basic statistics of files

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Param	Original file	Final file
Filename	modeM0/AS1A10_094T73_9000004606cztM0_level2_bc.evt	modeM0/AS1A10_094T73_9000004606cztM0_level2_quad_clean.evt
Size (bytes)	452,609,280	152,398,080
Size	431.6 MB	145.3 MB
Events in quadrant A	1,834,382	1,057,393
Events in quadrant B	4,314,270	1,049,710
Events in quadrant C	2,172,507	1,018,729
Events in quadrant D	4,855,023	953,125

Level1 data integrity

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Mode M9
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	21	0
B	0	21	0
C	0	21	0
D	0	21	0

Mode M0
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	16437	0
B	0	24693	0
C	0	18102	0
D	0	26155	0

Mode SS
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	160	0
B	0	158	0
C	0	160	0
D	0	160	0

Data saturation

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Quadrant	Total seconds	Saturated seconds	Saturation percentage
A	7744	40	0.516529%
B	7683	216	2.811402%
C	7739	131	1.692725%
D	7689	368	4.786058%

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)	Marked lightcurve
A	11011	7830	0	0	0.00%	0.00%