ASTROSAT CZTI

Data Quality Report

Orbit 04096

Creation date: 2024-06-27T14:37:18.816534
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_192T01_9000000522_04096cztM0_level2.evt modeM0/AS1G05_192T01_9000000522_04096cztM0_level2_quad_clean.evt
Size (bytes)668,076,48085,150,080
Size637.1 MB 81.2 MB
Events in quadrant A3,149,031580,709
Events in quadrant B4,756,032576,680
Events in quadrant C8,730,635429,601
Events in quadrant D3,177,549557,961

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137313
B0184285
C0299972
D0137272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6200490.790323%
B61992764.452331%
C6200276344.564516%
D6200671.080645%

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 7525 6201 12 12 0.16% 0.19%
B 7525 6200 83 83 1.10% 1.34%
C 7525 6200 2699 2699 35.87% 43.53%
D 7525 6200 31 31 0.41% 0.50%

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 0 199 166899 1076.84 757 740 154.3
A 14 111 35285 223.88 757 740 154.3
A 0 226 22144 138.71 757 740 154.3
B 3 0 1258731 8732.8 765 748 144.1
B 10 16 267128 1849.18 765 748 144.1
B 14 167 113935 785.73 765 748 144.1
C 12 204 6323125 45259.62 607 610 139.7
C 14 234 27225 190.52 607 610 139.7
C 13 61 4908 30.77 607 610 139.7
D 10 172 201903 1128.26 740 719 178.3
D 2 37 74986 416.5 740 719 178.3
D 13 239 53150 294.04 740 719 178.3

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