ASTROSAT CZTI

Data Quality Report

Orbit 53393

Creation date: 2025-08-11T18:08:58.227854
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/AS1C09_011T09_9000006494_53393cztM0_level2.fits modeM0/AS1C09_011T09_9000006494_53393cztM0_level2_quad_clean.evt
Size (bytes)791,720,64073,739,520
Size755.0 MB 70.3 MB
Events in quadrant A4,204,650585,633
Events in quadrant B5,436,221588,765
Events in quadrant C14,694,74489,730
Events in quadrant D4,483,425529,336

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168861
B0204441
C0479386
D0177451

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62883375.359415%
B628873211.641221%
C6287540285.923334%
D62872473.928742%

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 7163 6289 233 233 3.25% 3.70%
B 7163 6289 448 448 6.25% 7.12%
C 7162 6287 4950 4950 69.11% 78.73%
D 7162 6288 171 171 2.39% 2.72%

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 15 174 626183 3845.61 658 643 162.7
A 7 206 385693 2367.16 658 643 162.7
A 12 115 173911 1065.19 658 643 162.7
B 4 206 689384 5115.46 633 612 134.6
B 4 171 654901 4859.36 633 612 134.6
B 2 249 497436 3689.88 633 612 134.6
C 15 178 6994906 74903.25 339 335 93.4
C 1 241 4747636 50837.75 339 335 93.4
C 15 224 1034117 11070.53 339 335 93.4
D 0 18 901306 4931.08 638 609 182.7
D 11 245 355151 1941.03 638 609 182.7
D 2 153 291724 1593.78 638 609 182.7

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