ASTROSAT CZTI

Data Quality Report

Orbit 20170325_A02_055T01_9000001114_level2

Creation date: 2018-05-18T00:59:47.896272
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


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A02_055T01_9000001114cztM0_level2.evt modeM0/AS1A02_055T01_9000001114cztM0_level2_quad_clean.evt
Size (bytes)18,709,655,0403,457,814,400
Size17.4 GB 3.2 GB
Events in quadrant A124,785,67821,512,195
Events in quadrant B132,198,45222,146,464
Events in quadrant C131,574,83622,280,189
Events in quadrant D160,363,70420,816,697

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05525740
B05679790
C05700480
D06610880

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053420
B053440
C053420
D053440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04060
B04060
C04060
D04060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A26254433471.274834%
B26252544491.694696%
C26254139101.489291%
D262542132245.036908%

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 303060 262641 180 180 0.06% 0.07%