ASTROSAT CZTI

Data Quality Report

Orbit 44580

Creation date: 2024-06-27T23:04:38.984973
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_080T04_9000006004_44580cztM0_level2.fits modeM0/AS1A13_080T04_9000006004_44580cztM0_level2_quad_clean.evt
Size (bytes)682,038,720115,816,320
Size650.4 MB 110.5 MB
Events in quadrant A5,523,348823,882
Events in quadrant B5,058,166799,851
Events in quadrant C6,488,800686,338
Events in quadrant D7,590,010669,792

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228580
B0200273
C0244961
D0278485

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7575460.607261%
B75745096.720359%
C7575112614.864686%
D757579310.468647%

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 7575 7575 20 20 0.26% 0.26%
B 7576 7575 352 352 4.65% 4.65%
C 7576 7576 926 926 12.22% 12.22%
D 7575 7575 794 794 10.48% 10.48%

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 2082899 11779.27 842 823 176.8
A 10 248 72674 406.49 842 823 176.8
A 13 248 57824 322.48 842 823 176.8
B 0 189 818127 5183.0 813 789 157.7
B 5 172 413813 2619.11 813 789 157.7
B 4 171 293581 1856.69 813 789 157.7
C 15 208 2557265 14422.84 761 765 177.3
C 12 2 386975 2178.86 761 765 177.3
C 14 254 304316 1712.52 761 765 177.3
D 13 174 1303937 6671.3 781 756 195.3
D 13 249 1108143 5668.99 781 756 195.3
D 1 52 1080903 5529.54 781 756 195.3

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