ASTROSAT CZTI

Data Quality Report

Orbit 03203

Creation date: 2024-06-27T14:26:13.477356
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_233T10_9000000438_03203cztM0_level2.evt modeM0/AS1G05_233T10_9000000438_03203cztM0_level2_quad_clean.evt
Size (bytes)986,990,40078,940,800
Size941.3 MB 75.3 MB
Events in quadrant A3,758,319505,588
Events in quadrant B3,947,765507,559
Events in quadrant C16,809,637334,212
Events in quadrant D4,838,186488,558

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169132
B0169661
C0553791
D0199621

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79553874.864865%
B79553774.739158%
C7955537367.542426%
D79554435.568825%

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 8350 7956 7 7 0.08% 0.09%
B 8350 7955 1 1 0.01% 0.01%
C 8349 7954 4980 4980 59.65% 62.61%
D 8350 7956 140 140 1.68% 1.76%

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 0 118 96428 496.26 930 905 192.5
A 15 170 33777 170.78 930 905 192.5
A 0 226 19766 97.99 930 905 192.5
B 15 204 210268 1133.3 948 922 184.7
B 4 80 23220 120.71 948 922 184.7
B 15 54 16062 81.96 948 922 184.7
C 12 206 14058754 93408.08 647 649 150.5
C 1 192 85802 565.79 647 649 150.5
C 14 223 55091 361.74 647 649 150.5
D 13 114 642805 2713.21 895 871 236.6
D 13 239 348717 1470.21 895 871 236.6
D 13 223 167746 705.32 895 871 236.6

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