ASTROSAT CZTI

Data Quality Report

Orbit 46319

Creation date: 2024-06-27T23:21:40.056287
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/AS1T05_200T01_9000006196_46319cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46319cztM0_level2_quad_clean.evt
Size (bytes)647,763,840111,683,520
Size617.8 MB 106.5 MB
Events in quadrant A11,448,797543,971
Events in quadrant B4,576,224825,041
Events in quadrant C3,597,397778,590
Events in quadrant D3,775,444713,503

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390370
B0186210
C0163421
D0168170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7476269336.021937%
B74761161.551632%
C7475660.882943%
D74761241.658641%

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 7476 7476 2238 2238 29.94% 29.94%
B 7476 7476 43 43 0.58% 0.58%
C 7475 7475 37 37 0.49% 0.49%
D 7476 7476 81 81 1.08% 1.08%

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 15 223 6064228 41642.36 691 676 145.6
A 10 83 2652361 18210.85 691 676 145.6
A 15 239 51399 348.35 691 676 145.6
B 3 112 727804 4391.34 831 803 165.6
B 0 190 280237 1687.88 831 803 165.6
B 5 172 74159 443.1 831 803 165.6
C 12 250 183918 954.92 810 814 191.7
C 1 3 133584 692.42 810 814 191.7
C 12 2 90411 467.26 810 814 191.7
D 1 52 233599 1144.52 809 782 203.4
D 13 171 100124 488.36 809 782 203.4
D 7 55 91370 445.33 809 782 203.4

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter