ASTROSAT CZTI

Data Quality Report

Orbit 29199

Creation date: 2024-06-27T20:01:23.815368
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_053T19_9000004190_29199cztM0_level2.evt modeM0/AS1A10_053T19_9000004190_29199cztM0_level2_quad_clean.evt
Size (bytes)78,528,96015,808,320
Size74.9 MB 15.1 MB
Events in quadrant A358,076106,950
Events in quadrant B468,424107,314
Events in quadrant C574,010103,994
Events in quadrant D920,75096,983

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015900
B019020
C022540
D032910

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79310.126103%
B79440.503778%
C79430.377834%
D7949612.090680%

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 793 793 0 0 0.00% 0.00%
B 794 794 2 2 0.25% 0.25%
C 794 794 0 0 0.00% 0.00%
D 794 794 128 128 16.12% 16.12%

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 1756 79.35 92 90 21.0
A 3 137 841 35.77 92 90 21.0
A 0 226 841 35.77 92 90 21.0
B 0 183 64825 3243.61 92 89 20.0
B 5 255 16931 843.85 92 89 20.0
B 10 245 9421 467.56 92 89 20.0
C 3 233 214424 9569.13 88 88 22.4
C 14 238 13932 618.07 88 88 22.4
C 2 114 1875 79.78 88 88 22.4
D 1 52 449814 20222.32 85 83 22.2
D 8 195 87383 3925.48 85 83 22.2
D 12 233 23804 1066.62 85 83 22.2

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