ASTROSAT CZTI

Data Quality Report

Orbit 03493

Creation date: 2024-06-27T14:29:43.499012
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_211T01_9000000464_03493cztM0_level2.evt modeM0/AS1G05_211T01_9000000464_03493cztM0_level2_quad_clean.evt
Size (bytes)557,320,32082,607,040
Size531.5 MB 78.8 MB
Events in quadrant A5,165,087489,411
Events in quadrant B3,988,827493,701
Events in quadrant C3,876,729492,811
Events in quadrant D3,316,102480,734

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208794
B0170773
C0172173
D0161753

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78283674.688298%
B78281872.388861%
C78281111.417987%
D7829190.242687%

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 7893 7830 231 231 2.93% 2.95%
B 7893 7830 23 23 0.29% 0.29%
C 7893 7830 58 58 0.73% 0.74%
D 7894 7831 2 2 0.03% 0.03%

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 50 1717952 9460.63 879 858 181.5
A 8 15 38727 208.65 879 858 181.5
A 0 118 9928 49.97 879 858 181.5
B 15 204 260016 1458.28 903 879 177.7
B 4 81 131195 733.35 903 879 177.7
B 4 200 57786 320.24 903 879 177.7
C 7 220 235784 1147.24 870 872 204.8
C 1 16 89701 433.82 870 872 204.8
C 1 192 51796 248.7 870 872 204.8
D 5 233 19450 87.24 864 838 213.4
D 13 239 12315 53.79 864 838 213.4
D 2 31 10606 45.78 864 838 213.4

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