ASTROSAT CZTI

Data Quality Report

Orbit 03212

Creation date: 2024-06-27T14:26:17.513124
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/AS1G05_233T10_9000000438_03212cztM0_level2.evt modeM0/AS1G05_233T10_9000000438_03212cztM0_level2_quad_clean.evt
Size (bytes)776,566,08080,501,760
Size740.6 MB 76.8 MB
Events in quadrant A3,047,219535,161
Events in quadrant B3,780,688544,910
Events in quadrant C12,666,171389,610
Events in quadrant D3,579,141507,308

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135443
B0154582
C0421452
D0151982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6589310.470481%
B65891021.548035%
C6589327449.688875%
D6589961.456974%

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 7819 6590 0 0 0.00% 0.00%
B 7819 6589 33 33 0.42% 0.50%
C 7819 6589 3369 3369 43.09% 51.13%
D 7819 6590 69 69 0.88% 1.05%

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 15 17751 107.75 776 761 157.7
A 0 199 17313 104.98 776 761 157.7
A 7 16 11340 67.09 776 761 157.7
B 15 204 508345 3352.39 798 780 151.4
B 2 249 77582 507.27 798 780 151.4
B 8 128 66059 431.16 798 780 151.4
C 12 206 8665663 60296.73 626 630 143.7
C 1 192 1481472 10304.63 626 630 143.7
C 6 80 31946 217.92 626 630 143.7
D 13 223 316035 1767.16 749 729 178.4
D 12 16 128694 717.19 749 729 178.4
D 13 120 112177 624.62 749 729 178.4

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
Veto Counter