ASTROSAT CZTI

Data Quality Report

Orbit 03713

Creation date: 2024-06-27T14:32:44.129139
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/AS1G05_182T01_9000000484_03713cztM0_level2.evt modeM0/AS1G05_182T01_9000000484_03713cztM0_level2_quad_clean.evt
Size (bytes)708,024,96058,867,200
Size675.2 MB 56.1 MB
Events in quadrant A2,735,396375,984
Events in quadrant B3,348,243371,990
Events in quadrant C12,255,441261,452
Events in quadrant D2,706,867362,996

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122292
B0141301
C0403741
D0124421

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5849400.683878%
B58491252.137117%
C5849454077.620106%
D5849280.478714%

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 6249 5850 11 11 0.18% 0.19%
B 6249 5850 49 49 0.78% 0.84%
C 6248 5849 3969 3969 63.52% 67.86%
D 6249 5850 20 20 0.32% 0.34%

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 8 15 59732 427.01 669 654 138.4
A 0 50 28653 202.37 669 654 138.4
A 0 118 27077 190.98 669 654 138.4
B 14 167 422610 3121.23 679 660 135.2
B 15 204 147432 1085.69 679 660 135.2
B 5 70 67153 491.86 679 660 135.2
C 2 53 10332094 88941.95 490 492 116.2
C 13 61 4046 30.6 490 492 116.2
C 1 16 2357 16.06 490 492 116.2
D 13 239 88781 548.87 651 633 160.6
D 5 233 40121 245.88 651 633 160.6
D 14 34 22349 135.22 651 633 160.6

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
Veto Counter