ASTROSAT CZTI

Data Quality Report

Orbit 20170520_A03_092T01_9000001240_level2

Creation date: 2018-05-18T02:55:46.525974
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information

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date-obs: 2017-05-20
time-obs: 11:08:21.217300000
date-end: 2017-05-24
time-end: 17:11:47.318000000
obs_id: A03_092T01_9000001240
exposure: 212028.994412
sourceid: Centaurus outskirts
observer: KiranLakhchaura
ra_pnt: 191.5735
dec_pnt: -40.3305

Basic statistics of files

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Param	Original file	Final file
Filename	modeM0/AS1A03_092T01_9000001240cztM0_level2.evt	modeM0/AS1A03_092T01_9000001240cztM0_level2_quad_clean.evt
Size (bytes)	22,575,951,360	4,211,714,880
Size	21.0 GB	3.9 GB
Events in quadrant A	180,053,882	26,779,575
Events in quadrant B	156,644,671	27,072,699
Events in quadrant C	142,111,242	26,493,133
Events in quadrant D	183,636,981	25,617,273

Level1 data integrity

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Mode SS
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	6446	0
B	0	6434	0
C	0	6444	0
D	0	6444	0

Mode M0
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	738756	0
B	0	672426	0
C	0	646846	0
D	0	754807	0

Mode M9
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	513	0
B	0	512	0
C	0	512	0
D	0	512	0

Data saturation

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Quadrant	Total seconds	Saturated seconds	Saturation percentage
A	315585	6004	1.902499%
B	315591	4558	1.444274%
C	315591	2248	0.712314%
D	315569	6594	2.089559%

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	367407	315684	2072	2072	0.56%	0.66%