ASTROSAT CZTI

Data Quality Report

Orbit 46914

Creation date: 2024-06-27T23:29:23.190110
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_053T01_9000006282_46914cztM0_level2.fits modeM0/AS1A13_053T01_9000006282_46914cztM0_level2_quad_clean.evt
Size (bytes)639,944,640126,273,600
Size610.3 MB 120.4 MB
Events in quadrant A7,491,626845,212
Events in quadrant B7,664,563800,511
Events in quadrant C3,558,761841,125
Events in quadrant D4,347,219774,485

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0273371
B0284491
C0167241
D0188501

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80893534.363951%
B808998512.177031%
C8089430.531586%
D80891571.940907%

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 8419 8089 21 21 0.25% 0.26%
B 8419 8089 272 272 3.23% 3.36%
C 8419 8089 2 2 0.02% 0.02%
D 8419 8090 99 99 1.18% 1.22%

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 3886758 20596.24 903 882 188.7
A 13 248 61848 323.14 903 882 188.7
A 7 3 31379 161.64 903 882 188.7
B 3 112 3981785 23024.31 873 844 172.9
B 15 36 48487 275.55 873 844 172.9
B 0 245 39195 221.81 873 844 172.9
C 12 250 34831 161.83 891 892 209.7
C 14 254 34422 159.88 891 892 209.7
C 1 3 11370 49.96 891 892 209.7
D 2 249 311158 1395.27 889 858 222.4
D 13 249 227385 1018.58 889 858 222.4
D 1 52 158578 709.19 889 858 222.4

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