ASTROSAT CZTI

Data Quality Report

Orbit 16769

Creation date: 2024-06-27T17:27:24.847293
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: 2018-11-03
time-obs: 23:14:31.580700000
date-end: 2018-11-04
time-end: 03:32:15.587300000
obs_id: A05_004T05_9000002488
exposure: 8634.99680799
sourceid: M31 Field No. 17
observer: dleahy
ra_pnt: 9.808417
dec_pnt: 40.9869

Basic statistics of files

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Param	Original file	Final file
Filename	modeM0/AS1A05_004T05_9000002488_16769cztM0_level2.evt	modeM0/AS1A05_004T05_9000002488_16769cztM0_level2_quad_clean.evt
Size (bytes)	1,184,875,200	102,775,680
Size	1.1 GB	98.0 MB
Events in quadrant A	7,773,301	546,919
Events in quadrant B	7,295,480	556,565
Events in quadrant C	10,767,852	530,245
Events in quadrant D	9,116,268	523,790

Level1 data integrity

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Mode SS
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	282	0
B	0	282	0
C	0	282	0
D	0	282	0

Mode M9
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	17	0
B	0	17	0
C	0	17	0
D	0	17	0

Mode M0
Quadrant	BADHDUFLAG	Total packets	Discarded packets
A	0	32430	4
B	0	30835	3
C	0	41401	3
D	0	36607	3

Data saturation

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Quadrant	Total seconds	Saturated seconds	Saturation percentage
A	13809	464	3.360127%
B	13809	140	1.013832%
C	13809	577	4.178434%
D	13809	529	3.830835%

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