ASTROSAT CZTI

Data Quality Report

Orbit 22067

Creation date: 2024-06-27T18:36:09.382256
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/AS1A07_138T08_9000003268_22067cztM0_level2.evt modeM0/AS1A07_138T08_9000003268_22067cztM0_level2_quad_clean.evt
Size (bytes)403,692,48091,667,520
Size385.0 MB 87.4 MB
Events in quadrant A2,761,360598,734
Events in quadrant B2,857,035608,392
Events in quadrant C2,838,555577,728
Events in quadrant D3,352,939564,397

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123190
B0124390
C0123610
D0141930

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6114120.196271%
B6114250.408898%
C6114550.899575%
D6113761.243252%

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 6803 6114 0 0 0.00% 0.00%
B 6804 6115 0 0 0.00% 0.00%
C 6804 6115 3 3 0.04% 0.05%
D 6803 6114 58 58 0.85% 0.95%

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 13 254 9100 57.54 715 698 146.0
A 3 137 6125 37.17 715 698 146.0
A 0 226 6060 36.72 715 698 146.0
B 0 230 19244 135.04 717 699 137.3
B 12 111 16481 114.92 717 699 137.3
B 11 111 14682 101.82 717 699 137.3
C 14 238 108746 663.25 695 698 162.9
C 10 22 17133 100.89 695 698 162.9
C 13 61 4824 25.33 695 698 162.9
D 1 52 471759 2779.38 697 676 169.5
D 12 33 160795 944.7 697 676 169.5
D 12 32 36434 210.97 697 676 169.5

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