ASTROSAT CZTI

Data Quality Report

Orbit 20210804_T04_035T01_9000004622_level2

Creation date: 2021-08-06T11:40:13.006522
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: 2021-08-04
time-obs: 09:47:20.966000000
date-end: 2021-08-05
time-end: 04:59:14.958800000
obs_id: T04_035T01_9000004622
exposure: 34445.0272925
sourceid: 4U 1543-47
observer: NazmaHusain
ra_pnt: 236.7845
dec_pnt: -47.6695

Basic statistics of files

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Param	Original file	Final file
Filename	modeM0/AS1T04_035T01_9000004622cztM0_level2_bc.evt	modeM0/AS1T04_035T01_9000004622cztM0_level2_quad_clean.evt
Size (bytes)	3,520,350,720	743,443,200
Size	3.3 GB	709.0 MB
Events in quadrant A	22,900,560	4,693,322
Events in quadrant B	32,730,484	4,799,864
Events in quadrant C	19,024,947	4,626,376
Events in quadrant D	28,015,308	4,411,345

Level1 data integrity

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Mode M0
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	166951	0
B	0	192551	0
C	0	155697	0
D	0	176473	0

Mode SS
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	1182	0
B	0	1182	0
C	0	1182	0
D	0	1182	0

Mode M9
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	112	0
B	0	112	0
C	0	112	0
D	0	112	0

Data saturation

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Quadrant	Total seconds	Saturated seconds	Saturation percentage
A	58075	5632	9.697805%
B	58075	3012	5.186397%
C	58075	3731	6.424451%
D	58075	2807	4.833405%

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	69115	58074	150	150	0.22%	0.26%