ASTROSAT CZTI

Data Quality Report

Orbit 44738

Creation date: 2024-06-27T23:05:55.792589
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/AS1A13_004T11_9000006018_44738cztM0_level2.fits modeM0/AS1A13_004T11_9000006018_44738cztM0_level2_quad_clean.evt
Size (bytes)558,947,520114,033,600
Size533.1 MB 108.8 MB
Events in quadrant A6,317,895739,580
Events in quadrant B3,849,611777,953
Events in quadrant C3,355,805776,815
Events in quadrant D6,600,699650,250

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247872
B0165052
C0153902
D0247382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72955137.032214%
B72953194.372858%
C7296731.000548%
D729689512.266996%

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 8800 7297 215 215 2.44% 2.95%
B 8800 7297 72 72 0.82% 0.99%
C 8801 7298 4 4 0.05% 0.05%
D 8801 7298 648 648 7.36% 8.88%

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 10 83 2118464 12653.39 812 794 167.4
A 15 223 1022857 6106.98 812 794 167.4
A 13 248 16732 95.23 812 794 167.4
B 0 189 314449 1910.56 820 791 164.2
B 5 255 107799 651.81 820 791 164.2
B 0 190 60424 363.24 820 791 164.2
C 15 208 79591 407.82 818 822 193.1
C 14 254 59252 302.52 818 822 193.1
C 3 233 14541 71.03 818 822 193.1
D 1 52 1375119 7146.45 773 748 192.3
D 8 129 1330077 6912.24 773 748 192.3
D 13 249 528556 2744.49 773 748 192.3

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