ASTROSAT CZTI

Data Quality Report

Orbit 08396

Creation date: 2024-06-27T15:31:55.363512
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/AS1A03_062T01_9000001176_08396cztM0_level2.evt modeM0/AS1A03_062T01_9000001176_08396cztM0_level2_quad_clean.evt
Size (bytes)443,635,20066,300,480
Size423.1 MB 63.2 MB
Events in quadrant A3,138,683397,508
Events in quadrant B3,473,995401,272
Events in quadrant C3,083,262392,249
Events in quadrant D3,315,398380,792

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130963
B0140382
C0130812
D0138912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62441021.633568%
B62441632.610506%
C6244620.992953%
D6244641.024984%

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 7454 6245 0 0 0.00% 0.00%
B 7454 6244 30 30 0.40% 0.48%
C 7454 6244 1 1 0.01% 0.02%
D 7454 6245 8 8 0.11% 0.13%

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 0 226 7724 41.86 815 797 165.5
A 12 194 7172 38.52 815 797 165.5
A 14 111 5165 26.39 815 797 165.5
B 4 48 265194 1716.2 811 795 154.1
B 10 252 24839 156.07 811 795 154.1
B 0 214 18846 117.17 811 795 154.1
C 9 68 31605 170.24 781 787 181.0
C 13 61 5999 28.79 781 787 181.0
C 1 16 3840 16.86 781 787 181.0
D 1 52 139755 743.17 776 760 187.0
D 14 34 90567 480.17 776 760 187.0
D 2 136 69833 369.31 776 760 187.0

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