ASTROSAT CZTI

Data Quality Report

Orbit 05791

Creation date: 2024-06-27T14:59:11.336848
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/AS1A02_106T01_9000000744_05791cztM0_level2.evt modeM0/AS1A02_106T01_9000000744_05791cztM0_level2_quad_clean.evt
Size (bytes)450,328,32061,493,760
Size429.5 MB 58.6 MB
Events in quadrant A3,143,618355,198
Events in quadrant B3,278,896365,315
Events in quadrant C3,040,909350,721
Events in quadrant D3,731,212335,637

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135513
B0137222
C0134832
D0156272

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65241221.870018%
B65241261.931330%
C6524901.379522%
D65242944.506438%

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 7634 6524 0 0 0.00% 0.00%
B 7634 6525 0 0 0.00% 0.00%
C 7634 6525 0 0 0.00% 0.00%
D 7634 6525 177 177 2.32% 2.71%

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 7 16 24557 144.3 810 793 164.7
A 0 226 8007 43.8 810 793 164.7
A 12 194 7831 42.74 810 793 164.7
B 4 81 50022 313.52 817 798 157.0
B 15 204 48244 302.19 817 798 157.0
B 0 219 17349 105.42 817 798 157.0
C 13 61 6196 30.37 777 780 178.3
C 1 16 4021 18.17 777 780 178.3
C 14 67 3791 16.88 777 780 178.3
D 12 233 742707 3980.07 769 747 186.4
D 8 195 37898 199.29 769 747 186.4
D 7 55 18953 97.66 769 747 186.4

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter