ASTROSAT CZTI

Data Quality Report

Orbit 03223

Creation date: 2024-06-27T14:26:01.852394
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/AS1G05_221T01_9000000438_03223cztM0_level2.evt modeM0/AS1G05_221T01_9000000438_03223cztM0_level2_quad_clean.evt
Size (bytes)536,515,20090,362,880
Size511.7 MB 86.2 MB
Events in quadrant A4,318,044574,798
Events in quadrant B3,696,055576,411
Events in quadrant C4,463,459558,973
Events in quadrant D3,305,379547,884

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176782
B0156261
C0182621
D0149331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68682103.057659%
B6868781.135702%
C68681962.853815%
D6868610.888177%

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 7868 6869 146 146 1.86% 2.13%
B 7868 6868 49 49 0.62% 0.71%
C 7868 6869 181 181 2.30% 2.64%
D 7868 6869 51 51 0.65% 0.74%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 199 795362 4973.13 770 757 159.8
A 0 118 386119 2411.83 770 757 159.8
A 0 226 119861 745.43 770 757 159.8
B 15 204 377601 2449.79 791 774 153.8
B 2 249 201942 1307.82 791 774 153.8
B 15 186 13637 83.62 791 774 153.8
C 1 192 1299240 7448.95 743 748 174.3
C 14 223 143635 819.69 743 748 174.3
C 6 80 75831 430.72 743 748 174.3
D 13 223 268195 1468.45 742 722 182.1
D 13 120 98301 535.72 742 722 182.1
D 5 233 48132 260.28 742 722 182.1

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter