ASTROSAT CZTI

Data Quality Report

Orbit 24450

Creation date: 2024-06-27T19:06:08.926093
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_183T01_9000003606_24450cztM0_level2.evt modeM0/AS1T03_183T01_9000003606_24450cztM0_level2_quad_clean.evt
Size (bytes)514,892,160120,009,600
Size491.0 MB 114.5 MB
Events in quadrant A3,202,609809,810
Events in quadrant B3,512,315832,333
Events in quadrant C3,928,774767,009
Events in quadrant D4,478,885742,120

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141972
B0149492
C0162132
D0182322

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6933300.432713%
B6933861.240444%
C69333605.192557%
D69332413.476129%

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 7883 6934 0 0 0.00% 0.00%
B 7883 6934 28 28 0.36% 0.40%
C 7883 6934 147 147 1.86% 2.12%
D 7883 6934 185 185 2.35% 2.67%

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 4 2 20642 120.19 825 810 165.0
A 13 254 10350 57.82 825 810 165.0
A 3 137 7412 40.01 825 810 165.0
B 6 36 123977 787.89 833 812 156.3
B 3 64 88077 558.23 833 812 156.3
B 0 190 25375 157.13 833 812 156.3
C 3 233 654877 3572.21 787 793 183.1
C 14 238 124995 678.32 787 793 183.1
C 2 16 54989 295.99 787 793 183.1
D 12 218 953231 5004.05 788 764 190.3
D 1 52 246009 1288.46 788 764 190.3
D 8 195 187122 979.08 788 764 190.3

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