ASTROSAT CZTI

Data Quality Report

Orbit 32310

Creation date: 2024-06-27T20:38:43.327528
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/AS1A10_005T01_9000004700_32310cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32310cztM0_level2_quad_clean.evt
Size (bytes)663,612,48081,190,080
Size632.9 MB 77.4 MB
Events in quadrant A3,300,810523,455
Events in quadrant B5,794,806514,898
Events in quadrant C4,315,507484,273
Events in quadrant D6,238,528473,057

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138673
B0218982
C0169432
D0230722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6632280.422195%
B66321562.352232%
C66323254.900483%
D66324016.046441%

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 7868 6633 3 3 0.04% 0.05%
B 7868 6633 34 34 0.43% 0.51%
C 7868 6633 166 166 2.11% 2.50%
D 7868 6633 319 319 4.05% 4.81%

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 0 6 25482 146.35 838 823 168.5
A 13 6 22331 127.64 838 823 168.5
A 13 254 12699 70.48 838 823 168.5
B 6 159 1938427 12464.27 832 814 155.5
B 0 168 293868 1885.16 832 814 155.5
B 5 172 165188 1057.38 832 814 155.5
C 15 208 654160 3541.94 794 800 184.5
C 0 10 180325 973.23 794 800 184.5
C 3 233 167112 901.6 794 800 184.5
D 8 195 2128784 11308.94 787 767 188.2
D 13 249 776032 4120.0 787 767 188.2
D 14 52 172354 911.87 787 767 188.2

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