ASTROSAT CZTI

Data Quality Report

Orbit 53692

Creation date: 2025-08-31T20:58:08.638108
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_022T05_9000006504_53692cztM0_level2.fits modeM0/AS1A14_022T05_9000006504_53692cztM0_level2_quad_clean.evt
Size (bytes)994,832,64084,778,560
Size948.7 MB 80.9 MB
Events in quadrant A14,551,803289,981
Events in quadrant B5,188,578705,912
Events in quadrant C10,887,177482,353
Events in quadrant D5,633,132579,519

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0483110
B0205490
C0374232
D0216860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7310453362.010944%
B73105747.852257%
C7310245733.611491%
D73107099.699042%

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 7310 7310 4468 4468 61.12% 61.12%
B 7310 7310 249 249 3.41% 3.41%
C 7310 7310 2268 2268 31.03% 31.03%
D 7310 7310 584 584 7.99% 7.99%

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 9849793 70374.02 558 543 140.0
A 3 78 1787844 12770.47 558 543 140.0
A 12 17 364599 2601.22 558 543 140.0
B 5 185 1567366 9188.51 784 755 170.5
B 7 0 242131 1415.72 784 755 170.5
B 0 171 39782 228.9 784 755 170.5
C 15 224 5190193 27709.02 680 677 187.3
C 1 241 864870 4614.29 680 677 187.3
C 7 64 616105 3286.03 680 677 187.3
D 10 118 963289 4615.9 729 697 208.5
D 7 70 408868 1957.3 729 697 208.5
D 2 153 320472 1533.41 729 697 208.5

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