ASTROSAT CZTI

Data Quality Report

Orbit 53719

Creation date: 2025-09-02T18:08:31.388779
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_022T04_9000006506_53719cztM0_level2.fits modeM0/AS1A14_022T04_9000006506_53719cztM0_level2_quad_clean.evt
Size (bytes)738,328,32046,998,720
Size704.1 MB 44.8 MB
Events in quadrant A9,530,969142,775
Events in quadrant B2,393,176498,170
Events in quadrant C5,632,115334,571
Events in quadrant D9,409,148113,914

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0385547132
B0118391057
C0233003259
D0366865653

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011210
B01120
C01126
D01124

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4468308569.046553%
B49821472.950622%
C4782123025.721455%
D4602337073.229031%

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 7607 4919 2636 2636 34.65% 53.59%
B 7613 5302 12 12 0.16% 0.23%
C 7612 5135 739 739 9.71% 14.39%
D 7607 4936 2692 2692 35.39% 54.54%

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 7232573 88348.31 327 318 81.9
A 3 78 601171 7339.94 327 318 81.9
A 7 206 213338 2602.23 327 318 81.9
B 5 185 112002 978.12 530 511 114.0
B 6 255 36201 313.11 530 511 114.0
B 10 247 27334 235.32 530 511 114.0
C 15 224 2006475 16484.59 443 439 121.7
C 15 219 755406 6203.94 443 439 121.7
C 15 158 314198 2578.31 443 439 121.7
D 2 172 7410951 98098.0 258 246 75.5
D 8 176 366783 4851.97 258 246 75.5
D 1 241 310242 4103.52 258 246 75.5

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