ASTROSAT CZTI

Data Quality Report

Orbit 20180319_A04_103T01_9000001988_level2

Creation date: 2018-05-18T08:58:18.937066
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: 2018-03-19
time-obs: 14:31:04.838900000
date-end: 2018-03-28
time-end: 20:53:25.180600000
obs_id: A04_103T01_9000001988
exposure: 439056.972021
sourceid: MCG-6-30-15
observer: Gordon
ra_pnt: 203.9738
dec_pnt: -34.29554

Basic statistics of files

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Param	Original file	Final file
Filename	modeM0/AS1A04_103T01_9000001988cztM0_level2.evt	modeM0/AS1A04_103T01_9000001988cztM0_level2_quad_clean.evt
Size (bytes)	49,542,929,280	8,894,658,240
Size	46.1 GB	8.3 GB
Events in quadrant A	326,578,991	56,545,338
Events in quadrant B	358,112,577	57,460,394
Events in quadrant C	331,642,779	56,097,417
Events in quadrant D	437,756,279	52,257,575

Level1 data integrity

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Mode SS
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	14044	0
B	0	14024	0
C	0	14028	0
D	0	14036	0

Mode M9
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	1091	0
B	0	1087	0
C	0	1089	0
D	0	1088	0

Mode M0
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	1429484	0
B	0	1511673	0
C	0	1437309	0
D	0	1776066	0

Data saturation

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Quadrant	Total seconds	Saturated seconds	Saturation percentage
A	687182	6381	0.928575%
B	687115	14647	2.131666%
C	687206	5438	0.791320%
D	687184	33204	4.831894%

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