ASTROSAT CZTI

Data Quality Report

Orbit 20210802_A10_094T76_9000004616_level2

Creation date: 2021-08-04T13:48:04.035454
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


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_094T76_9000004616cztM0_level2_bc.evt modeM0/AS1A10_094T76_9000004616cztM0_level2_quad_clean.evt
Size (bytes)366,272,640166,253,760
Size349.3 MB 158.6 MB
Events in quadrant A1,833,8101,153,316
Events in quadrant B4,210,0761,152,738
Events in quadrant C2,110,2521,096,099
Events in quadrant D2,386,1251,076,519

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171580
B0250340
C0182810
D0184600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8009891.111250%
B80091571.960295%
C80082603.246753%
D80081301.623377%

Noise dominated fraction

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 10244 8009 3 3 0.03% 0.04%