ASTROSAT CZTI

Data Quality Report

Orbit 53454

Creation date: 2025-10-15T21:10:51.962576
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/AS1A14_002T06_9000006496_53454cztM0_level2.fits modeM0/AS1A14_002T06_9000006496_53454cztM0_level2_quad_clean.evt
Size (bytes)672,030,72094,446,720
Size640.9 MB 90.1 MB
Events in quadrant A6,424,828603,173
Events in quadrant B4,131,997715,764
Events in quadrant C8,117,914520,378
Events in quadrant D5,690,995560,260

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234812
B0167942
C0286792
D0213122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6596100515.236507%
B65962854.320800%
C6596149722.695573%
D65966029.126743%

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 7686 6596 718 718 9.34% 10.89%
B 7686 6597 55 55 0.72% 0.83%
C 7686 6597 1156 1156 15.04% 17.52%
D 7686 6597 453 453 5.89% 6.87%

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 3 63 1849621 10577.91 719 701 174.8
A 15 174 1624915 9292.34 719 701 174.8
A 12 80 52404 295.8 719 701 174.8
B 4 171 572819 3589.09 743 718 159.4
B 8 234 354880 2221.84 743 718 159.4
B 4 206 107129 667.57 743 718 159.4
C 15 224 2730141 15093.16 664 658 180.8
C 15 178 1147440 6341.33 664 658 180.8
C 1 241 902316 4985.88 664 658 180.8
D 8 176 1047780 5137.32 713 682 203.8
D 3 12 852774 4180.57 713 682 203.8
D 7 70 130163 635.27 713 682 203.8

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