ASTROSAT CZTI

Data Quality Report

Orbit 03665

Creation date: 2024-06-27T14:32:10.004731
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_191T01_9000000476_03665cztM0_level2.evt modeM0/AS1G05_191T01_9000000476_03665cztM0_level2_quad_clean.evt
Size (bytes)521,386,56090,403,200
Size497.2 MB 86.2 MB
Events in quadrant A3,892,480566,357
Events in quadrant B3,874,434562,495
Events in quadrant C3,453,524555,725
Events in quadrant D4,068,410539,181

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163233
B0162762
C0153022
D0172822

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73891482.002977%
B73891942.625524%
C7389981.326296%
D73891411.908242%

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 8949 7391 7 7 0.08% 0.09%
B 8949 7391 26 26 0.29% 0.35%
C 8949 7391 1 1 0.01% 0.01%
D 8949 7391 32 32 0.36% 0.43%

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 13 164 308313 1672.98 902 882 183.8
A 13 251 53394 285.76 902 882 183.8
A 8 4 20060 104.36 902 882 183.8
B 4 81 229965 1314.36 909 891 174.3
B 15 204 37947 212.62 909 891 174.3
B 0 182 22184 122.17 909 891 174.3
C 9 247 26631 125.93 875 879 204.5
C 13 61 7420 31.99 875 879 204.5
C 7 234 3333 12.0 875 879 204.5
D 13 172 479927 2277.63 871 847 210.3
D 13 223 148404 701.51 871 847 210.3
D 13 239 57186 267.85 871 847 210.3

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