ASTROSAT CZTI

Data Quality Report

Orbit 47319

Creation date: 2024-06-28T19:48:52.754321
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/AS1A13_093T23_9000006316_47319cztM0_level2.fits modeM0/AS1A13_093T23_9000006316_47319cztM0_level2_quad_clean.evt
Size (bytes)570,096,000115,531,200
Size543.7 MB 110.2 MB
Events in quadrant A8,515,580755,200
Events in quadrant B3,615,005790,650
Events in quadrant C3,614,909750,599
Events in quadrant D4,783,931686,543

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0306612
B0157022
C0161022
D0191254

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74015337.201729%
B74013574.823672%
C74013024.080530%
D74003294.445946%

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 7486 7404 49 49 0.65% 0.66%
B 7486 7404 5 5 0.07% 0.07%
C 7486 7404 41 41 0.55% 0.55%
D 7485 7403 38 38 0.51% 0.51%

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 10 83 3480370 19332.86 860 837 180.0
A 15 235 1585648 8805.47 860 837 180.0
A 9 191 99149 546.24 860 837 180.0
B 12 3 58588 331.26 866 836 174.3
B 0 198 42628 239.71 866 836 174.3
B 5 32 32611 182.26 866 836 174.3
C 14 254 167152 816.65 856 858 203.6
C 3 233 71144 345.17 856 858 203.6
C 1 3 20391 95.92 856 858 203.6
D 6 112 928001 4291.18 854 826 216.1
D 12 233 133944 616.1 854 826 216.1
D 2 165 123331 566.98 854 826 216.1

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