ASTROSAT CZTI

Data Quality Report

Orbit 03724

Creation date: 2024-06-27T14:32:53.362481
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_248T01_9000000486_03724cztM0_level2.evt modeM0/AS1G05_248T01_9000000486_03724cztM0_level2_quad_clean.evt
Size (bytes)523,981,44086,941,440
Size499.7 MB 82.9 MB
Events in quadrant A3,837,849538,753
Events in quadrant B4,381,488532,171
Events in quadrant C3,397,288533,745
Events in quadrant D3,756,710519,855

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164002
B0180411
C0152011
D0165351

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72991732.370188%
B72992753.767639%
C7299390.534320%
D7299971.328949%

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 7394 7300 23 23 0.31% 0.32%
B 7394 7300 77 77 1.04% 1.05%
C 7394 7300 0 0 0.00% 0.00%
D 7394 7300 58 58 0.78% 0.79%

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 336952 1902.84 849 829 176.6
A 8 15 101146 567.91 849 829 176.6
A 0 50 62909 351.44 849 829 176.6
B 15 204 580680 3513.88 854 832 165.0
B 2 249 273257 1650.9 854 832 165.0
B 0 173 65257 390.42 854 832 165.0
C 2 53 94060 479.01 828 831 194.6
C 9 144 16198 78.96 828 831 194.6
C 8 128 15954 77.7 828 831 194.6
D 13 239 203697 992.73 827 799 204.4
D 13 25 70015 338.66 827 799 204.4
D 2 37 60845 293.79 827 799 204.4

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
Veto Counter