ASTROSAT CZTI

Data Quality Report

Orbit 23563

Creation date: 2024-06-27T18:56:09.987765
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/AS1A07_011T01_9000003482_23563cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23563cztM0_level2_quad_clean.evt
Size (bytes)410,690,880100,149,120
Size391.7 MB 95.5 MB
Events in quadrant A2,895,624659,090
Events in quadrant B3,157,662682,810
Events in quadrant C2,951,077647,956
Events in quadrant D3,025,681624,607

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01211
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01255567
B01332271
C01266969
D01328376

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6001160.266622%
B6000711.183333%
C6001691.149808%
D6000180.300000%

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 7253 6003 2 2 0.03% 0.03%
B 7252 6001 25 25 0.34% 0.42%
C 7252 6003 2 2 0.03% 0.03%
D 7251 6002 8 8 0.11% 0.13%

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 6 16 30392 201.51 743 729 147.2
A 13 254 9317 58.34 743 729 147.2
A 0 226 6414 38.62 743 729 147.2
B 0 189 117940 839.66 746 728 139.6
B 3 64 64632 457.78 746 728 139.6
B 4 216 50441 356.13 746 728 139.6
C 14 238 115462 702.56 715 722 163.3
C 0 10 18860 111.06 715 722 163.3
C 10 9 15603 91.12 715 722 163.3
D 1 52 165649 955.91 714 693 172.6
D 12 233 72866 418.24 714 693 172.6
D 9 85 67445 386.82 714 693 172.6

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