ASTROSAT CZTI

Data Quality Report

Orbit 21413

Creation date: 2024-06-27T18:27:33.326201
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/AS1T03_140T01_9000003160_21413cztM0_level2.evt modeM0/AS1T03_140T01_9000003160_21413cztM0_level2_quad_clean.evt
Size (bytes)540,316,800106,790,400
Size515.3 MB 101.8 MB
Events in quadrant A3,687,099688,872
Events in quadrant B3,761,018696,639
Events in quadrant C4,373,584665,678
Events in quadrant D4,030,814658,988

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157202
B0160992
C0181902
D0171172

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7525500.664452%
B75251101.461794%
C75262493.308530%
D75261001.328727%

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 8230 7527 0 0 0.00% 0.00%
B 8230 7526 28 28 0.34% 0.37%
C 8231 7528 46 46 0.56% 0.61%
D 8231 7527 49 49 0.60% 0.65%

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 5 168 151845 817.92 912 895 184.6
A 11 47 14758 75.12 912 895 184.6
A 13 254 10094 49.84 912 895 184.6
B 3 64 83633 470.71 907 883 175.8
B 0 189 55672 311.66 907 883 175.8
B 0 230 23562 129.01 907 883 175.8
C 3 233 862199 4259.09 862 869 202.2
C 14 238 135336 664.91 862 869 202.2
C 10 91 16513 77.35 862 869 202.2
D 1 52 184659 858.59 880 855 214.1
D 12 235 102952 476.92 880 855 214.1
D 13 104 100765 466.7 880 855 214.1

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