ASTROSAT CZTI

Data Quality Report

Orbit 30065

Creation date: 2024-06-27T20:10:30.655744
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/AS1A10_071T07_9000004322_30065cztM0_level2.evt modeM0/AS1A10_071T07_9000004322_30065cztM0_level2_quad_clean.evt
Size (bytes)581,232,96062,870,400
Size554.3 MB 60.0 MB
Events in quadrant A3,362,520404,957
Events in quadrant B4,990,487406,015
Events in quadrant C3,815,624363,744
Events in quadrant D5,015,692297,227

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133832
B0189132
C0150982
D0186172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6171340.550964%
B6171811.312591%
C617183413.514827%
D617193015.070491%

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 7526 6172 5 5 0.07% 0.08%
B 7526 6172 2 2 0.03% 0.03%
C 7526 6172 0 0 0.00% 0.00%
D 7526 6172 590 590 7.84% 9.56%

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 8 192 24684 139.11 866 854 171.3
A 13 254 10304 55.16 866 854 171.3
A 3 137 7923 41.27 866 854 171.3
B 6 159 1608886 10033.03 856 840 160.3
B 12 111 19446 116.09 856 840 160.3
B 11 111 17726 105.36 856 840 160.3
C 14 238 374775 2107.61 776 786 177.4
C 14 254 337072 1895.13 776 786 177.4
C 3 233 49388 273.89 776 786 177.4
D 13 104 1923784 10918.45 748 734 176.1
D 8 195 101897 574.37 748 734 176.1
D 7 223 63818 358.17 748 734 176.1

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