ASTROSAT CZTI

Data Quality Report

Orbit 29687

Creation date: 2024-06-27T20:06:50.193926
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/AS1A10_093T01_9000004274_29687cztM0_level2.evt modeM0/AS1A10_093T01_9000004274_29687cztM0_level2_quad_clean.evt
Size (bytes)558,417,60093,657,600
Size532.5 MB 89.3 MB
Events in quadrant A3,226,960627,319
Events in quadrant B3,188,181653,089
Events in quadrant C3,775,956602,452
Events in quadrant D6,315,605535,175

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133341
B0132181
C0152061
D0230231

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5990560.934891%
B5990470.784641%
C59901272.120200%
D599064610.784641%

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 7270 5991 19 19 0.26% 0.32%
B 7270 5991 5 5 0.07% 0.08%
C 7270 5991 2 2 0.03% 0.03%
D 7270 5990 539 539 7.41% 9.00%

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 13 143370 940.92 760 748 151.6
A 12 16 128662 843.89 760 748 151.6
A 12 194 25647 164.27 760 748 151.6
B 0 229 113363 788.56 770 751 142.8
B 0 189 22010 148.86 770 751 142.8
B 0 190 18219 122.32 770 751 142.8
C 3 233 690009 3971.18 745 752 173.6
C 14 238 122729 702.78 745 752 173.6
C 15 208 21968 122.24 745 752 173.6
D 7 80 1188206 7133.91 707 689 166.5
D 13 189 614122 3685.15 707 689 166.5
D 13 104 559489 3356.95 707 689 166.5

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