ASTROSAT CZTI

Data Quality Report

Orbit 59297

Creation date: 2026-09-12T23:12:08.136058
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_021T06_9000006606_59297cztM0_level2.fits modeM0/AS1A14_021T06_9000006606_59297cztM0_level2_quad_clean.evt
Size (bytes)612,803,52083,315,520
Size584.4 MB 79.5 MB
Events in quadrant A2,850,942627,794
Events in quadrant B4,135,775639,583
Events in quadrant C3,084,294589,321
Events in quadrant D12,147,124247,783

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126781
B0163201
C0133671
D0401505

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5992550.917891%
B59924828.044059%
C5993921.535124%
D5992367761.365154%

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 7212 5993 18 18 0.25% 0.30%
B 7212 5993 368 368 5.10% 6.14%
C 7213 5994 45 45 0.62% 0.75%
D 7212 5993 3652 3652 50.64% 60.94%

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 14 121960 734.35 663 648 165.2
A 15 233 76215 457.44 663 648 165.2
A 7 64 39197 233.35 663 648 165.2
B 4 236 927442 6826.1 638 616 135.8
B 6 255 321369 2362.35 638 616 135.8
B 10 247 120236 881.0 638 616 135.8
C 15 147 163681 921.63 647 641 176.9
C 3 233 124095 697.86 647 641 176.9
C 12 252 118439 665.89 647 641 176.9
D 12 110 6121665 44633.55 468 446 137.1
D 11 129 3550863 25888.26 468 446 137.1
D 12 2 538483 3923.16 468 446 137.1

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

TCT plots

Parameter TCT0 TCT_healed
Tct