ASTROSAT CZTI

Data Quality Report

Orbit 59300

Creation date: 2026-09-13T04:09:29.217563
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_021T06_9000006606_59300cztM0_level2.fits modeM0/AS1A14_021T06_9000006606_59300cztM0_level2_quad_clean.evt
Size (bytes)569,741,76095,705,280
Size543.3 MB 91.3 MB
Events in quadrant A3,185,330663,157
Events in quadrant B5,445,347649,442
Events in quadrant C2,984,623644,719
Events in quadrant D8,946,782466,902

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147522
B0209632
C0141952
D0313207

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6794981.442449%
B679585412.568065%
C6795250.367918%
D6794173325.507801%

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 7604 6795 71 71 0.93% 1.04%
B 7605 6796 707 707 9.30% 10.40%
C 7605 6796 13 13 0.17% 0.19%
D 7604 6795 1745 1745 22.95% 25.68%

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 10 251 290999 1630.35 718 699 178.1
A 3 245 27400 149.96 718 699 178.1
A 0 117 26362 144.13 718 699 178.1
B 4 236 2132904 14888.93 679 652 143.2
B 6 255 231223 1610.01 679 652 143.2
B 5 236 158080 1099.27 679 652 143.2
C 12 252 108064 544.08 714 707 197.3
C 14 254 18432 89.83 714 707 197.3
C 4 5 17559 85.4 714 707 197.3
D 11 129 4758790 25944.69 643 614 183.4
D 3 12 1051732 5731.38 643 614 183.4
D 12 110 304723 1658.2 643 614 183.4

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

TCT plots

Parameter TCT0 TCT_healed
Tct