ASTROSAT CZTI

Data Quality Report

Orbit 58364

Creation date: 2026-07-12T04:18:10.863528
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_58364cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58364cztM0_level2_quad_clean.evt
Size (bytes)421,997,76094,973,760
Size402.4 MB 90.6 MB
Events in quadrant A3,488,407607,940
Events in quadrant B4,671,090653,133
Events in quadrant C3,331,152599,489
Events in quadrant D3,623,529560,473

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151912
B0184802
C0146642
D0154442

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65191942.975917%
B65182614.004296%
C6518590.905186%
D65181131.733661%

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 7539 6520 170 170 2.25% 2.61%
B 7538 6518 142 142 1.88% 2.18%
C 7538 6519 43 43 0.57% 0.66%
D 7538 6519 105 105 1.39% 1.61%

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 8 246 419068 2444.03 688 671 171.2
A 13 248 106439 617.84 688 671 171.2
A 3 245 92115 534.16 688 671 171.2
B 10 128 1063891 7231.15 686 661 147.0
B 0 213 377813 2565.05 686 661 147.0
B 5 172 127134 860.16 686 661 147.0
C 15 148 132366 698.49 683 673 188.5
C 14 245 126162 665.58 683 673 188.5
C 9 38 93427 491.96 683 673 188.5
D 5 32 314295 1634.44 674 645 191.9
D 11 129 197844 1027.61 674 645 191.9
D 3 12 124865 647.31 674 645 191.9

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