ASTROSAT CZTI

Data Quality Report

Orbit 14373

Creation date: 2024-06-27T16:54:11.920098
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/AS1A04_149T01_9000002118_14373cztM0_level2.evt modeM0/AS1A04_149T01_9000002118_14373cztM0_level2_quad_clean.evt
Size (bytes)465,603,84089,372,160
Size444.0 MB 85.2 MB
Events in quadrant A3,266,576565,940
Events in quadrant B3,456,861576,095
Events in quadrant C3,715,826572,801
Events in quadrant D3,236,326554,404

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134303
B0140682
C0151172
D0134332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6262570.910252%
B6262861.373363%
C6262711.133823%
D6262530.846375%

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 7593 6264 0 0 0.00% 0.00%
B 7593 6263 12 12 0.16% 0.19%
C 7593 6264 5 5 0.07% 0.08%
D 7593 6264 18 18 0.24% 0.29%

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 12 189 85835 520.24 822 809 163.4
A 3 1 8412 46.52 822 809 163.4
A 0 226 7317 39.82 822 809 163.4
B 0 229 103595 679.29 824 805 151.3
B 0 189 58650 382.27 824 805 151.3
B 0 214 36865 238.3 824 805 151.3
C 3 233 524358 2845.59 814 820 184.0
C 14 234 16735 86.5 814 820 184.0
C 13 61 5906 27.64 814 820 184.0
D 12 110 58761 306.27 806 787 189.3
D 2 120 56938 296.64 806 787 189.3
D 10 199 29338 150.83 806 787 189.3

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