ASTROSAT CZTI

Data Quality Report

Orbit 32082

Creation date: 2024-06-27T20:36:17.527251
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/AS1C06_002T04_9000004684_32082cztM0_level2.evt modeM0/AS1C06_002T04_9000004684_32082cztM0_level2_quad_clean.evt
Size (bytes)853,594,560130,294,080
Size814.1 MB 124.3 MB
Events in quadrant A3,687,446929,394
Events in quadrant B13,183,976746,644
Events in quadrant C4,129,831860,099
Events in quadrant D4,327,675871,123

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159171
B0445262
C0170021
D0176401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77321111.435592%
B7731387050.058207%
C77323574.617175%
D77321431.849457%

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 7847 7733 0 0 0.00% 0.00%
B 7846 7731 2782 2782 35.46% 35.98%
C 7847 7733 3 3 0.04% 0.04%
D 7847 7734 48 48 0.61% 0.62%

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 13 254 16498 81.34 951 930 191.4
A 13 6 14441 70.59 951 930 191.4
A 3 137 9646 45.54 951 930 191.4
B 10 245 7955864 51737.09 800 779 153.8
B 6 159 1838101 11949.3 800 779 153.8
B 0 190 91976 593.11 800 779 153.8
C 3 233 277290 1334.99 889 893 207.0
C 14 238 180520 867.59 889 893 207.0
C 0 10 68981 328.86 889 893 207.0
D 8 195 300915 1371.35 921 892 218.8
D 12 233 225485 1026.57 921 892 218.8
D 12 218 174887 795.3 921 892 218.8

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