ASTROSAT CZTI

Data Quality Report

Orbit 44449

Creation date: 2024-06-27T23:03:41.990799
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/AS1A13_072T03_9000006000_44449cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44449cztM0_level2_quad_clean.evt
Size (bytes)584,493,120124,038,720
Size557.4 MB 118.3 MB
Events in quadrant A5,619,195840,514
Events in quadrant B4,142,049860,114
Events in quadrant C3,846,544831,090
Events in quadrant D7,420,424679,204

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233691
B0176402
C0168691
D0275331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78372653.381396%
B78362703.445636%
C7836961.225115%
D7836110614.114344%

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 7837 7837 8 8 0.10% 0.10%
B 7836 7836 51 51 0.65% 0.65%
C 7836 7836 1 1 0.01% 0.01%
D 7836 7836 704 704 8.98% 8.98%

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 10 83 1902611 9741.1 932 910 195.2
A 10 248 86321 437.5 932 910 195.2
A 7 3 16113 77.87 932 910 195.2
B 5 172 313177 1694.97 919 889 184.2
B 0 155 65821 352.42 919 889 184.2
B 0 229 51641 275.46 919 889 184.2
C 14 254 106928 488.24 917 919 217.1
C 3 233 85019 387.34 917 919 217.1
C 12 16 73120 332.53 917 919 217.1
D 1 52 1230508 5638.13 869 843 218.1
D 2 249 1179539 5404.43 869 843 218.1
D 12 2 482874 2210.16 869 843 218.1

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