ASTROSAT CZTI

Data Quality Report

Orbit 58353

Creation date: 2026-07-11T11:08:44.124009
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_044T03_9000006588_58353cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58353cztM0_level2_quad_clean.evt
Size (bytes)398,640,960100,411,200
Size380.2 MB 95.8 MB
Events in quadrant A3,131,243656,942
Events in quadrant B4,155,514699,526
Events in quadrant C3,703,692630,042
Events in quadrant D3,255,286596,820

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140132
B0165382
C0155845
D0143392

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65621121.706797%
B65623004.571777%
C65611592.423411%
D6561811.234568%

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 7702 6563 13 13 0.17% 0.20%
B 7702 6563 108 108 1.40% 1.65%
C 7701 6562 78 78 1.01% 1.19%
D 7701 6562 30 30 0.39% 0.46%

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 13 248 79231 426.32 750 729 184.1
A 4 238 46585 249.03 750 729 184.1
A 2 143 24344 128.25 750 729 184.1
B 5 185 603384 3858.92 737 709 156.2
B 10 128 167687 1069.16 737 709 156.2
B 5 172 81488 517.23 737 709 156.2
C 4 5 541822 2743.02 721 716 197.3
C 6 13 168244 849.25 721 716 197.3
C 14 254 27398 135.26 721 716 197.3
D 11 129 303956 1481.02 721 688 204.8
D 5 173 41517 199.39 721 688 204.8
D 3 12 32260 154.18 721 688 204.8

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