ASTROSAT CZTI

Data Quality Report

Orbit 58333

Creation date: 2026-07-10T12:07:16.443521
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_044T03_9000006588_58333cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58333cztM0_level2_quad_clean.evt
Size (bytes)416,347,20097,110,720
Size397.1 MB 92.6 MB
Events in quadrant A3,331,090641,136
Events in quadrant B4,742,189642,510
Events in quadrant C3,398,405607,872
Events in quadrant D3,419,591582,481

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147802
B0187112
C0148612
D0148412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6687550.822491%
B66885438.119019%
C66881251.869019%
D6688220.328947%

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 7557 6688 22 22 0.29% 0.33%
B 7558 6689 335 335 4.43% 5.01%
C 7558 6689 101 101 1.34% 1.51%
D 7558 6689 18 18 0.24% 0.27%

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 193930 1071.6 719 699 180.3
A 13 248 114166 629.25 719 699 180.3
A 4 238 92951 511.6 719 699 180.3
B 4 206 1377415 9272.43 691 667 148.5
B 6 255 130463 874.18 691 667 148.5
B 5 185 124604 834.72 691 667 148.5
C 6 223 193977 1003.2 696 691 192.7
C 14 254 116728 602.26 696 691 192.7
C 12 2 83712 430.9 696 691 192.7
D 3 12 231187 1160.97 699 669 198.6
D 12 110 181810 912.29 699 669 198.6
D 11 129 109438 547.8 699 669 198.6

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