ASTROSAT CZTI

Data Quality Report

Orbit 58792

Creation date: 2026-08-10T00:19:33.423359
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_106T01_9000006596_58792cztM0_level2.fits modeM0/AS1A14_106T01_9000006596_58792cztM0_level2_quad_clean.evt
Size (bytes)655,859,52090,671,040
Size625.5 MB 86.5 MB
Events in quadrant A3,353,841661,014
Events in quadrant B3,804,455689,291
Events in quadrant C3,587,073630,021
Events in quadrant D13,008,495294,677

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147631
B0160901
C0155162
D0432651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6747670.993034%
B67472663.942493%
C6747831.230176%
D6747369354.735438%

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 7042 6748 15 15 0.21% 0.22%
B 7042 6748 79 79 1.12% 1.17%
C 7042 6748 60 60 0.85% 0.89%
D 7042 6748 3425 3425 48.64% 50.76%

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 136705 722.18 758 738 188.3
A 15 233 67434 354.25 758 738 188.3
A 7 64 52081 272.71 758 738 188.3
B 4 171 337906 2116.57 746 720 159.3
B 0 157 69876 434.1 746 720 159.3
B 4 236 65465 406.41 746 720 159.3
C 15 208 190260 934.14 736 728 202.9
C 13 3 189426 930.03 736 728 202.9
C 6 223 104221 510.08 736 728 202.9
D 12 110 5788049 34517.81 580 553 167.7
D 11 129 4434534 26445.17 580 553 167.7
D 13 138 172722 1026.85 580 553 167.7

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

TCT plots

Parameter TCT0 TCT_healed
Tct