ASTROSAT CZTI

Data Quality Report

Orbit 20210802_A10_123T01_9000004620_level2

Creation date: 2021-08-05T18:03:30.057642
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: 2021-08-02
time-obs: 23:53:53.965900000
date-end: 2021-08-04
time-end: 09:32:56.955600000
obs_id: A10_123T01_9000004620
exposure: 45002.9860818
sourceid: BCD_T1
observer: anshuman
ra_pnt: 209.5805
dec_pnt: 24.49705

Basic statistics of files

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Param	Original file	Final file
Filename	modeM0/AS1A10_123T01_9000004620cztM0_level2_bc.evt	modeM0/AS1A10_123T01_9000004620cztM0_level2_quad_clean.evt
Size (bytes)	4,881,087,360	950,644,800
Size	4.5 GB	906.6 MB
Events in quadrant A	23,703,999	6,079,463
Events in quadrant B	44,465,779	6,107,094
Events in quadrant C	24,857,508	5,918,683
Events in quadrant D	49,529,916	5,361,142

Level1 data integrity

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Mode M0
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	196807	0
B	0	259685	0
C	0	197420	0
D	0	280201	0

Mode M9
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	1	140412928056104	46
B	1	140412928056104	46
C	1	140412928056104	46
D	1	140412928056104	46

Mode SS
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	1582	0
B	0	1582	0
C	0	1586	0
D	0	1584	0

Data saturation

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Quadrant	Total seconds	Saturated seconds	Saturation percentage
A	77585	6089	7.848167%
B	77599	4745	6.114770%
C	77636	5189	6.683755%
D	77610	8076	10.405876%

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	121144	77749	74	74	0.06%	0.10%