ASTROSAT CZTI

Data Quality Report

Orbit 19358

Creation date: 2024-06-27T18:01:48.328778
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_204T01_9000002856_19358cztM0_level2.evt modeM0/AS1A05_204T01_9000002856_19358cztM0_level2_quad_clean.evt
Size (bytes)687,441,600101,157,120
Size655.6 MB 96.5 MB
Events in quadrant A3,520,168658,984
Events in quadrant B3,773,893662,513
Events in quadrant C3,591,130638,606
Events in quadrant D9,414,570568,919

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157596
B0164023
C0158583
D0333745

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7673370.482210%
B7676951.237624%
C7676861.120375%
D7675145018.892508%

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 8270 7678 0 0 0.00% 0.00%
B 8271 7678 16 16 0.19% 0.21%
C 8271 7679 0 0 0.00% 0.00%
D 8271 7679 1220 1220 14.75% 15.89%

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 9945 48.72 913 893 185.8
A 0 226 7869 37.55 913 893 185.8
A 3 137 7380 34.92 913 893 185.8
B 3 64 89848 509.62 909 883 174.6
B 7 220 47336 266.1 909 883 174.6
B 0 230 35688 199.38 909 883 174.6
C 14 238 133142 635.75 883 889 208.0
C 13 61 6008 24.61 883 889 208.0
C 3 233 4930 19.43 883 889 208.0
D 7 238 2865368 13799.92 842 815 207.6
D 10 66 2708886 13046.07 842 815 207.6
D 12 233 268501 1289.57 842 815 207.6

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