ASTROSAT CZTI

Data Quality Report

Orbit 17838

Creation date: 2024-06-27T17:42:02.578229
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: 2019-01-15
time-obs: 06:25:37.538600000
date-end: 2019-01-15
time-end: 08:35:50.539200000
obs_id: T03_061T01_9000002654
exposure: 3697.62931599
sourceid: ngc2090
observer: mousumi
ra_pnt: 86.75787
dec_pnt: -34.25061

Basic statistics of files

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Param	Original file	Final file
Filename	modeM0/AS1T03_061T01_9000002654_17838cztM0_level2.evt	modeM0/AS1T03_061T01_9000002654_17838cztM0_level2_quad_clean.evt
Size (bytes)	520,096,320	77,794,560
Size	496.0 MB	74.2 MB
Events in quadrant A	3,462,056	463,221
Events in quadrant B	4,266,586	464,203
Events in quadrant C	3,799,622	452,265
Events in quadrant D	3,708,731	449,465

Level1 data integrity

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Mode M9
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	2	0
B	0	2	0
C	0	2	0
D	0	2	0

Mode SS
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	154	0
B	0	154	0
C	0	154	0
D	0	154	0

Mode M0
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	15532	1
B	0	17787	1
C	0	15710	1
D	0	16392	1

Data saturation

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Quadrant	Total seconds	Saturated seconds	Saturation percentage
A	7563	149	1.970118%
B	7563	419	5.540130%
C	7564	180	2.379693%
D	7564	145	1.916975%

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	7813	7564	0	0	0.00%	0.00%