ASTROSAT CZTI

Data Quality Report

Orbit 16413

Creation date: 2024-06-27T17:22:19.546427
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_069T01_9000002424_16413cztM0_level2.evt modeM0/AS1A05_069T01_9000002424_16413cztM0_level2_quad_clean.evt
Size (bytes)460,857,60083,980,800
Size439.5 MB 80.1 MB
Events in quadrant A3,146,275540,469
Events in quadrant B3,634,991558,893
Events in quadrant C3,296,281520,004
Events in quadrant D3,460,976493,445

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131443
B0146392
C0134482
D0144362

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6162280.454398%
B6162711.152223%
C6162791.282051%
D61621372.223304%

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 7483 6164 2 2 0.03% 0.03%
B 7483 6164 27 27 0.36% 0.44%
C 7483 6164 0 0 0.00% 0.00%
D 7483 6164 107 107 1.43% 1.74%

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 9 143 60543 378.86 787 773 157.8
A 15 223 35686 221.3 787 773 157.8
A 15 174 18334 111.31 787 773 157.8
B 15 35 158388 1055.85 798 780 149.3
B 10 16 129399 861.64 798 780 149.3
B 0 198 61403 406.12 798 780 149.3
C 3 233 191161 1087.49 757 765 175.1
C 14 238 118545 672.73 757 765 175.1
C 7 247 19648 107.85 757 765 175.1
D 10 70 202215 1099.34 751 729 183.3
D 12 218 182502 991.78 751 729 183.3
D 1 20 67018 361.68 751 729 183.3

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter