ASTROSAT CZTI

Data Quality Report

Orbit 46390

Creation date: 2024-06-27T23:22:34.899845
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/AS1A13_070T06_9000006202_46390cztM0_level2.fits modeM0/AS1A13_070T06_9000006202_46390cztM0_level2_quad_clean.evt
Size (bytes)502,683,840113,964,480
Size479.4 MB 108.7 MB
Events in quadrant A7,224,941710,530
Events in quadrant B3,596,909793,298
Events in quadrant C3,571,214760,817
Events in quadrant D3,663,588692,615

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260083
B0155552
C0156392
D0159042

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A709375010.573805%
B70932163.045256%
C70931972.777386%
D70932052.890173%

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 7779 7095 390 390 5.01% 5.50%
B 7779 7095 28 28 0.36% 0.39%
C 7779 7095 55 55 0.71% 0.78%
D 7779 7095 75 75 0.96% 1.06%

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 83 3164152 19203.81 791 773 164.7
A 0 247 931369 5649.33 791 773 164.7
A 0 226 62954 377.48 791 773 164.7
B 5 32 254201 1598.07 806 781 158.6
B 0 190 107341 671.97 806 781 158.6
B 12 111 20287 123.01 806 781 158.6
C 14 254 238396 1272.43 799 805 186.7
C 12 249 137810 733.74 799 805 186.7
C 3 233 77002 408.08 799 805 186.7
D 13 249 272389 1366.22 800 777 198.8
D 1 52 201593 1010.11 800 777 198.8
D 13 138 64067 318.35 800 777 198.8

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