ASTROSAT CZTI

Data Quality Report

Orbit 29245

Creation date: 2024-06-27T20:01:55.619149
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/AS1T03_272T01_9000004204_29245cztM0_level2.evt modeM0/AS1T03_272T01_9000004204_29245cztM0_level2_quad_clean.evt
Size (bytes)909,812,160102,804,480
Size867.7 MB 98.0 MB
Events in quadrant A3,469,394704,929
Events in quadrant B4,392,394710,938
Events in quadrant C9,714,880632,546
Events in quadrant D9,472,707543,098

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152361
B0179861
C0341821
D0332541

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7492290.387080%
B74921461.948745%
C7492155720.782168%
D7493199326.598158%

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 7882 7493 0 0 0.00% 0.00%
B 7882 7493 27 27 0.34% 0.36%
C 7882 7493 796 796 10.10% 10.62%
D 7883 7494 1772 1772 22.48% 23.65%

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 13 254 16354 85.68 895 877 180.6
A 0 13 10388 52.65 895 877 180.6
A 3 137 8614 42.83 895 877 180.6
B 10 245 572415 3373.27 889 867 169.4
B 0 229 211037 1240.42 889 867 169.4
B 0 183 57816 336.11 889 867 169.4
C 3 233 6394576 33554.89 814 818 190.5
C 14 238 130805 682.18 814 818 190.5
C 2 114 16972 84.78 814 818 190.5
D 1 52 5901628 32680.85 750 729 180.6
D 8 195 369965 2044.93 750 729 180.6
D 13 153 160624 885.54 750 729 180.6

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