ASTROSAT CZTI

Data Quality Report

Orbit 58806

Creation date: 2026-08-10T23:00:49.630540
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_58806cztM0_level2.fits modeM0/AS1A14_106T01_9000006596_58806cztM0_level2_quad_clean.evt
Size (bytes)589,665,60086,045,760
Size562.3 MB 82.1 MB
Events in quadrant A3,788,069609,478
Events in quadrant B3,366,313643,998
Events in quadrant C3,706,744578,380
Events in quadrant D10,479,671336,341

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154782
B0144171
C0154681
D0355991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62651402.234637%
B62661923.064156%
C62661883.000319%
D6266271443.313118%

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 6935 6265 77 77 1.11% 1.23%
B 6936 6266 95 95 1.37% 1.52%
C 6936 6267 135 135 1.95% 2.15%
D 6936 6267 2774 2774 39.99% 44.26%

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 7 64 602172 3495.12 697 679 172.1
A 10 251 148562 859.31 697 679 172.1
A 10 143 128536 742.94 697 679 172.1
B 4 171 322078 2177.05 684 660 147.6
B 5 172 94235 633.81 684 660 147.6
B 0 186 37303 248.19 684 660 147.6
C 13 3 714191 3799.5 677 672 187.8
C 12 252 66998 353.19 677 672 187.8
C 9 237 53032 278.82 677 672 187.8
D 12 110 3909161 24745.17 548 525 158.0
D 11 129 3546973 22452.2 548 525 158.0
D 2 249 551282 3486.79 548 525 158.0

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