ASTROSAT CZTI

Data Quality Report

Orbit 20180307_A04_176T04_9000001964_level2

Creation date: 2018-07-03T13:57:57.619375
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: 2018-03-07
time-obs: 07:36:49.627400000
date-end: 2018-03-07
time-end: 16:43:07.626700000
obs_id: A04_176T04_9000001964
exposure: 6644.69599115
sourceid: NGC 5194
observer: KshamaSK
ra_pnt: 202.4696
dec_pnt: 47.19528

Basic statistics of files

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Param	Original file	Final file
Filename	modeM0/AS1A04_176T04_9000001964cztM0_level2_bc.evt	modeM0/AS1A04_176T04_9000001964cztM0_level2_quad_clean.evt
Size (bytes)	521,354,880	140,230,080
Size	497.2 MB	133.7 MB
Events in quadrant A	2,654,482	872,473
Events in quadrant B	3,106,111	888,670
Events in quadrant C	2,409,646	884,887
Events in quadrant D	6,802,329	787,680

Level1 data integrity

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Mode SS
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	238	0
B	0	238	0
C	0	238	0
D	0	238	0

Mode M9
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	13	0
B	0	13	0
C	0	13	0
D	0	13	0

Mode M0
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	25071	0
B	0	27097	0
C	0	24572	0
D	0	45652	0

Data saturation

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Quadrant	Total seconds	Saturated seconds	Saturation percentage
A	11748	238	2.025877%
B	11748	442	3.762343%
C	11748	172	1.464079%
D	11748	2465	20.982295%

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