ASTROSAT CZTI

Data Quality Report

Orbit 14998

Creation date: 2024-06-27T17:02:20.300983
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/AS1T02_056T01_9000002210_14998cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14998cztM0_level2_quad_clean.evt
Size (bytes)471,528,000100,468,800
Size449.7 MB 95.8 MB
Events in quadrant A3,610,854650,521
Events in quadrant B3,665,478658,053
Events in quadrant C3,375,351638,419
Events in quadrant D3,170,451625,858

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148722
B0151061
C0139721
D0141151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67431542.283850%
B67431802.669435%
C67431031.527510%
D67431261.868604%

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 7449 6744 7 7 0.09% 0.10%
B 7449 6744 22 22 0.30% 0.33%
C 7449 6744 0 0 0.00% 0.00%
D 7449 6744 17 17 0.23% 0.25%

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 1 162 138912 827.26 820 803 166.9
A 12 189 109210 649.35 820 803 166.9
A 1 178 64972 384.37 820 803 166.9
B 3 64 180271 1155.04 814 795 155.4
B 0 229 169457 1085.44 814 795 155.4
B 0 197 60805 386.2 814 795 155.4
C 3 233 252860 1386.52 791 796 181.8
C 7 247 17512 91.95 791 796 181.8
C 10 22 15123 78.81 791 796 181.8
D 15 0 32672 152.12 792 772 209.7
D 7 38 25945 120.04 792 772 209.7
D 2 234 25062 115.83 792 772 209.7

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