ASTROSAT CZTI

Data Quality Report

Orbit 53196

Creation date: 2025-07-29T13:28:57.911680
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_011T06_9000006490_53196cztM0_level2.fits modeM0/AS1C09_011T06_9000006490_53196cztM0_level2_quad_clean.evt
Size (bytes)785,744,64075,481,920
Size749.3 MB 72.0 MB
Events in quadrant A3,316,529586,892
Events in quadrant B3,655,829617,804
Events in quadrant C7,858,912430,179
Events in quadrant D13,773,429216,644

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145672
B0155081
C0276741
D0451931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62131001.609528%
B62142093.363373%
C6214167126.890892%
D6214390262.793692%

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 7298 6214 75 75 1.03% 1.21%
B 7299 6215 163 163 2.23% 2.62%
C 7298 6214 1714 1714 23.49% 27.58%
D 7298 6213 4328 4328 59.30% 69.66%

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 0 8 222444 1426.62 623 608 155.5
A 3 62 177947 1140.46 623 608 155.5
A 4 77 132865 850.54 623 608 155.5
B 2 249 490123 3742.36 617 596 130.8
B 0 213 315919 2410.6 617 596 130.8
B 4 81 174224 1327.36 617 596 130.8
C 0 240 2734945 18247.25 540 535 149.9
C 15 224 2009982 13409.43 540 535 149.9
C 12 252 237250 1579.64 540 535 149.9
D 15 125 8862822 73812.65 410 390 120.1
D 10 117 2375307 19780.0 410 390 120.1
D 13 170 280491 2332.88 410 390 120.1

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