ASTROSAT CZTI

Data Quality Report

Orbit 58097

Creation date: 2026-06-24T07:01:52.562347
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_042T02_9000006586_58097cztM0_level2.fits modeM0/AS1A14_042T02_9000006586_58097cztM0_level2_quad_clean.evt
Size (bytes)983,177,28093,136,320
Size937.6 MB 88.8 MB
Events in quadrant A5,093,095664,031
Events in quadrant B13,350,568481,777
Events in quadrant C4,125,827696,869
Events in quadrant D13,228,645440,087

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209080
B0449960
C0178690
D0446990

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77207529.740933%
B7721345344.722186%
C7720791.023316%
D7720270034.974093%

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 7720 7720 611 611 7.91% 7.91%
B 7721 7721 2773 2773 35.92% 35.92%
C 7720 7720 79 79 1.02% 1.02%
D 7720 7720 2967 2967 38.43% 38.43%

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 10 253 1837150 9189.24 802 780 199.8
A 10 251 84657 419.72 802 780 199.8
A 3 61 22435 108.36 802 780 199.8
B 10 128 9359608 59692.5 723 695 156.8
B 5 172 823255 5246.41 723 695 156.8
B 5 185 66703 421.01 723 695 156.8
C 12 252 707779 3138.53 823 817 225.3
C 6 223 70278 308.37 823 817 225.3
C 15 208 65901 288.94 823 817 225.3
D 12 110 9875470 47095.94 742 709 209.7
D 12 1 69562 328.38 742 709 209.7
D 5 32 66297 312.81 742 709 209.7

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