ASTROSAT CZTI

Data Quality Report

Orbit 15331

Creation date: 2024-06-27T17:07:00.012770
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: 2018-07-29
time-obs: 20:53:12.397000000
date-end: 2018-07-29
time-end: 23:11:46.394000000
obs_id: T02_073T01_9000002260
exposure: 4483.88598201
sourceid: Cygnus X-1
observer: mithunnps
ra_pnt: 299.563
dec_pnt: 35.202

Basic statistics of files

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Param	Original file	Final file
Filename	modeM0/AS1T02_073T01_9000002260_15331cztM0_level2.evt	modeM0/AS1T02_073T01_9000002260_15331cztM0_level2_quad_clean.evt
Size (bytes)	466,758,720	53,640,000
Size	445.1 MB	51.2 MB
Events in quadrant A	3,182,918	292,098
Events in quadrant B	3,169,113	296,605
Events in quadrant C	3,387,095	291,709
Events in quadrant D	3,941,366	276,063

Level1 data integrity

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Mode SS
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	136	0
B	0	136	0
C	0	136	0
D	0	136	0

Mode M0
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	13921	3
B	0	13848	2
C	0	14533	2
D	0	16360	2

Mode M9
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	16	0
B	0	16	0
C	0	16	0
D	0	17	0

Data saturation

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Quadrant	Total seconds	Saturated seconds	Saturation percentage
A	6703	21	0.313293%
B	6703	28	0.417723%
C	6703	50	0.745935%
D	6703	114	1.700731%

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