ASTROSAT CZTI

Data Quality Report

Orbit 17808

Creation date: 2024-06-27T17:41:09.592637
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/AS1A05_015T01_9000002650_17808cztM0_level2.evt modeM0/AS1A05_015T01_9000002650_17808cztM0_level2_quad_clean.evt
Size (bytes)460,062,72092,292,480
Size438.8 MB 88.0 MB
Events in quadrant A3,256,279576,523
Events in quadrant B3,422,369591,382
Events in quadrant C3,319,190569,903
Events in quadrant D3,453,564563,793

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145681
B0149111
C0145422
D0154011

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70762133.010175%
B70772373.348877%
C70762092.953646%
D70761822.572075%

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 7091 7077 0 0 0.00% 0.00%
B 7092 7078 9 9 0.13% 0.13%
C 7091 7077 0 0 0.00% 0.00%
D 7091 7077 29 29 0.41% 0.41%

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 15 174 8742 46.12 844 823 171.7
A 0 226 7351 38.02 844 823 171.7
A 3 137 6608 33.69 844 823 171.7
B 7 220 59149 356.02 843 820 163.8
B 12 111 19472 113.84 843 820 163.8
B 0 230 18945 110.63 843 820 163.8
C 14 238 123655 644.87 808 809 190.5
C 5 218 20370 102.68 808 809 190.5
C 8 128 9609 46.2 808 809 190.5
D 7 238 248770 1249.97 818 794 198.4
D 10 70 75092 374.51 818 794 198.4
D 2 234 28462 139.46 818 794 198.4

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