ASTROSAT CZTI

Data Quality Report

Orbit 33118

Creation date: 2024-06-27T20:45:10.950576
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/AS1A11_046T06_9000004764_33118cztM0_level2.evt modeM0/AS1A11_046T06_9000004764_33118cztM0_level2_quad_clean.evt
Size (bytes)572,379,84095,109,120
Size545.9 MB 90.7 MB
Events in quadrant A2,587,081676,020
Events in quadrant B3,959,946645,028
Events in quadrant C2,945,761647,303
Events in quadrant D7,501,249558,385

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108122
B0150851
C0119791
D0258111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A503670.138999%
B50364528.975377%
C5036701.389992%
D5036139327.660842%

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 7009 5037 0 0 0.00% 0.00%
B 7009 5037 288 288 4.11% 5.72%
C 7009 5037 47 47 0.67% 0.93%
D 7009 5037 1393 1393 19.87% 27.66%

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 13 254 8694 60.77 667 658 132.2
A 0 226 5776 38.7 667 658 132.2
A 3 137 5748 38.49 667 658 132.2
B 5 172 1155103 9644.2 635 623 119.7
B 0 189 71105 588.79 635 623 119.7
B 5 200 52809 435.95 635 623 119.7
C 7 221 248109 1739.4 623 631 142.3
C 0 10 169119 1184.22 623 631 142.3
C 1 241 40971 283.53 623 631 142.3
D 7 223 2542191 17397.07 582 570 146.1
D 2 249 980784 6709.44 582 570 146.1
D 8 195 676993 4630.03 582 570 146.1

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