ASTROSAT CZTI

Data Quality Report

Orbit 03792

Creation date: 2024-06-27T14:33:43.714625
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_152T03_9000000488_03792cztM0_level2.evt modeM0/AS1G05_152T03_9000000488_03792cztM0_level2_quad_clean.evt
Size (bytes)514,794,24068,247,360
Size490.9 MB 65.1 MB
Events in quadrant A3,481,255414,893
Events in quadrant B3,724,263416,890
Events in quadrant C4,522,123399,336
Events in quadrant D3,431,952392,057

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142333
B0149252
C0175552
D0144012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63551562.454760%
B63551382.171518%
C63553355.271440%
D63551282.014162%

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 7635 6355 37 37 0.48% 0.58%
B 7635 6355 11 11 0.14% 0.17%
C 7635 6355 243 243 3.18% 3.82%
D 7635 6355 37 37 0.48% 0.58%

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 0 118 155677 946.87 805 789 163.6
A 0 50 107019 649.41 805 789 163.6
A 15 174 48586 292.19 805 789 163.6
B 15 204 237327 1526.97 813 796 154.9
B 14 167 117463 753.17 813 796 154.9
B 0 173 114006 730.85 813 796 154.9
C 2 53 1516273 8680.33 758 763 174.6
C 1 16 30115 168.12 758 763 174.6
C 13 61 6428 32.45 758 763 174.6
D 8 112 212114 1148.19 773 751 184.1
D 12 79 103304 557.1 773 751 184.1
D 1 84 56910 305.07 773 751 184.1

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
Veto Counter