ASTROSAT CZTI

Data Quality Report

Orbit 46434

Creation date: 2024-06-27T23:23:10.236724
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_062T01_9000006208_46434cztM0_level2.fits modeM0/AS1A13_062T01_9000006208_46434cztM0_level2_quad_clean.evt
Size (bytes)473,878,080118,163,520
Size451.9 MB 112.7 MB
Events in quadrant A6,293,918768,692
Events in quadrant B3,510,141809,278
Events in quadrant C3,645,155777,943
Events in quadrant D3,529,339718,094

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232672
B0153182
C0159212
D0157602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72443584.942021%
B72442343.230260%
C72441512.084484%
D72441722.374379%

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 7729 7245 0 0 0.00% 0.00%
B 7729 7245 7 7 0.09% 0.10%
C 7729 7245 15 15 0.19% 0.21%
D 7729 7245 30 30 0.39% 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 10 83 3012539 17003.47 848 829 177.1
A 13 254 12008 63.11 848 829 177.1
A 3 137 10112 52.41 848 829 177.1
B 0 189 128616 755.07 846 818 169.3
B 12 111 22726 129.44 846 818 169.3
B 14 111 21365 121.4 846 818 169.3
C 14 254 246559 1240.18 842 846 198.1
C 1 3 48138 238.69 842 846 198.1
C 3 233 43631 215.95 842 846 198.1
D 13 249 221850 1057.12 841 817 209.1
D 2 249 81891 387.75 841 817 209.1
D 2 234 32897 153.43 841 817 209.1

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