ASTROSAT CZTI

Data Quality Report

Orbit 59368

Creation date: 2026-09-17T17:30:24.708980
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_033T01_9000006608_59368cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59368cztM0_level2_quad_clean.evt
Size (bytes)438,782,400105,566,400
Size418.5 MB 100.7 MB
Events in quadrant A3,193,098693,403
Events in quadrant B4,073,041738,713
Events in quadrant C3,724,207667,348
Events in quadrant D4,709,290611,531

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144712
B0168222
C0159763
D0187562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69761221.748853%
B69773104.443170%
C69761261.806193%
D69762834.056766%

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 9006 6976 21 21 0.23% 0.30%
B 9007 6977 97 97 1.08% 1.39%
C 9006 6976 45 45 0.50% 0.65%
D 9006 6976 170 170 1.89% 2.44%

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 3 245 39024 195.97 796 775 195.2
A 0 24 32301 161.52 796 775 195.2
A 14 238 12251 58.8 796 775 195.2
B 4 236 325144 1957.82 778 750 165.7
B 5 185 281562 1694.79 778 750 165.7
B 4 171 185035 1112.22 778 750 165.7
C 6 223 242158 1133.0 772 764 213.1
C 12 252 180166 842.03 772 764 213.1
C 14 254 162873 760.87 772 764 213.1
D 12 110 912806 4259.36 764 730 214.1
D 1 27 440212 2052.36 764 730 214.1
D 3 12 148430 689.75 764 730 214.1

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

TCT plots

Parameter TCT0 TCT_healed
Tct