ASTROSAT CZTI

Data Quality Report

Orbit 20210801_C06_002T03_9000004610_level2

Creation date: 2021-08-04T10:23:18.268774
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: 2021-08-01
time-obs: 06:56:00.333100000
date-end: 2021-08-02
time-end: 09:17:10.991700000
obs_id: C06_002T03_9000004610
exposure: 76916.2022046
sourceid: Blank Sky-8
observer: tilak
ra_pnt: 237.3919
dec_pnt: 70.34809

Basic statistics of files

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Param	Original file	Final file
Filename	modeM0/AS1C06_002T03_9000004610cztM0_level2_bc.evt	modeM0/AS1C06_002T03_9000004610cztM0_level2_quad_clean.evt
Size (bytes)	5,241,646,080	1,485,512,640
Size	4.9 GB	1.4 GB
Events in quadrant A	28,020,285	9,756,361
Events in quadrant B	45,418,329	10,342,929
Events in quadrant C	25,297,607	10,007,492
Events in quadrant D	54,602,714	9,419,560

Level1 data integrity

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Mode M0
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	224215	0
B	0	264311	0
C	0	197904	0
D	0	293602	0

Mode SS
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	1628	0
B	0	1626	0
C	0	1626	0
D	0	1630	0

Mode M9
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	113	0
B	0	113	0
C	0	113	0
D	0	113	0

Data saturation

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Quadrant	Total seconds	Saturated seconds	Saturation percentage
A	79603	9947	12.495760%
B	79670	3746	4.701895%
C	79828	4611	5.776169%
D	79590	7867	9.884408%

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	94871	79800	181	181	0.19%	0.23%