ASTROSAT CZTI

Data Quality Report

Orbit 32368

Creation date: 2024-06-27T20:39:25.580337
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/AS1A09_131T01_9000004702_32368cztM0_level2.evt modeM0/AS1A09_131T01_9000004702_32368cztM0_level2_quad_clean.evt
Size (bytes)657,060,480129,268,800
Size626.6 MB 123.3 MB
Events in quadrant A3,122,257905,600
Events in quadrant B5,792,759896,081
Events in quadrant C4,138,709890,531
Events in quadrant D6,416,776779,815

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133183
B0218582
C0165582
D0233732

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6345220.346730%
B63453755.910165%
C63453866.083530%
D6345105116.564224%

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 7550 6346 0 0 0.00% 0.00%
B 7550 6346 153 153 2.03% 2.41%
C 7550 6346 92 92 1.22% 1.45%
D 7550 6346 699 699 9.26% 11.01%

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 12 96 47021 295.14 791 776 156.7
A 13 6 17985 109.83 791 776 156.7
A 13 254 12881 77.26 791 776 156.7
B 6 159 1923641 13223.78 776 757 145.4
B 0 155 287335 1970.81 776 757 145.4
B 5 172 179094 1226.43 776 757 145.4
C 3 233 595263 3387.95 765 773 175.5
C 0 10 244379 1388.29 765 773 175.5
C 14 238 153624 871.09 765 773 175.5
D 8 195 1293803 7774.75 699 679 166.3
D 1 47 614066 3687.91 699 679 166.3
D 12 218 582907 3500.57 699 679 166.3

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