ASTROSAT CZTI

Data Quality Report

Orbit 57932

Creation date: 2026-06-13T03:13:46.279076
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_125T11_9000006582_57932cztM0_level2.fits modeM0/AS1A14_125T11_9000006582_57932cztM0_level2_quad_clean.evt
Size (bytes)395,314,56090,843,840
Size377.0 MB 86.6 MB
Events in quadrant A2,756,954603,218
Events in quadrant B3,570,906627,331
Events in quadrant C4,427,161547,616
Events in quadrant D3,376,628522,761

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131063
B0153312
C0178752
D0148512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6444200.310366%
B64451612.498061%
C64452503.878976%
D64451021.582622%

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 7762 6625 2 2 0.03% 0.03%
B 7763 6626 54 54 0.70% 0.81%
C 7763 6626 241 241 3.10% 3.64%
D 7763 6626 90 90 1.16% 1.36%

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 22195 126.21 694 677 170.5
A 7 64 11723 64.79 694 677 170.5
A 13 248 11446 63.17 694 677 170.5
B 3 238 349057 2384.83 684 659 146.1
B 0 171 152673 1040.55 684 659 146.1
B 10 16 60049 406.53 684 659 146.1
C 15 224 1709454 9479.57 653 645 180.3
C 6 223 97948 539.78 653 645 180.3
C 12 254 20532 110.32 653 645 180.3
D 12 110 233298 1235.89 659 630 188.3
D 8 240 141795 749.84 659 630 188.3
D 2 62 104331 550.84 659 630 188.3

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