ASTROSAT CZTI

Data Quality Report

Orbit 53723

Creation date: 2025-09-03T11:04:56.439843
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_022T04_9000006506_53723cztM0_level2.fits modeM0/AS1A14_022T04_9000006506_53723cztM0_level2_quad_clean.evt
Size (bytes)981,930,24088,804,800
Size936.4 MB 84.7 MB
Events in quadrant A13,518,541324,900
Events in quadrant B3,754,558750,956
Events in quadrant C11,042,683493,716
Events in quadrant D7,451,400595,767

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0453586
B0167270
C0380520
D0274440

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7516432057.477382%
B7516771.024481%
C7517241932.180391%
D751777810.349874%

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 7516 7516 3460 3460 46.04% 46.04%
B 7516 7516 35 35 0.47% 0.47%
C 7517 7517 1789 1789 23.80% 23.80%
D 7517 7517 723 723 9.62% 9.62%

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 63 6538116 47577.75 548 535 137.4
A 3 78 4200264 30563.85 548 535 137.4
A 8 245 132363 959.39 548 535 137.4
B 7 0 200697 1203.97 776 750 166.1
B 5 185 150958 904.47 776 750 166.1
B 10 247 77835 464.16 776 750 166.1
C 15 224 4390132 23521.8 677 671 186.6
C 15 158 3205688 17174.72 677 671 186.6
C 5 10 167276 892.78 677 671 186.6
D 1 241 1209477 5663.57 747 716 213.4
D 2 172 958873 4489.38 747 716 213.4
D 7 110 806377 3774.87 747 716 213.4

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