ASTROSAT CZTI

Data Quality Report

Orbit 16045

Creation date: 2024-06-27T17:17:12.969501
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/AS1G08_012T01_9000002370_16045cztM0_level2.evt modeM0/AS1G08_012T01_9000002370_16045cztM0_level2_quad_clean.evt
Size (bytes)462,119,04097,021,440
Size440.7 MB 92.5 MB
Events in quadrant A3,253,307610,915
Events in quadrant B3,350,589623,794
Events in quadrant C3,402,823608,238
Events in quadrant D3,498,892593,790

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146103
B0147652
C0148932
D0156272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7202260.361011%
B7202340.472091%
C7202580.805332%
D72031071.485492%

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 7703 7203 0 0 0.00% 0.00%
B 7703 7204 0 0 0.00% 0.00%
C 7703 7204 0 0 0.00% 0.00%
D 7704 7204 58 58 0.75% 0.81%

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 1 15 8919 47.28 841 821 171.3
A 0 226 7215 37.33 841 821 171.3
A 15 223 6696 34.3 841 821 171.3
B 12 111 19548 114.38 844 821 163.7
B 11 111 16657 96.72 844 821 163.7
B 0 230 14567 83.96 844 821 163.7
C 14 238 124061 648.08 814 819 190.2
C 3 233 79378 413.11 814 819 190.2
C 10 22 19521 98.35 814 819 190.2
D 13 232 376583 1892.73 815 793 198.5
D 2 152 31043 152.36 815 793 198.5
D 2 234 25187 122.86 815 793 198.5

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