ASTROSAT CZTI

Data Quality Report

Orbit 43563

Creation date: 2024-06-27T22:53:12.871532
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/AS1A05_174T01_9000005880_43563cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43563cztM0_level2_quad_clean.evt
Size (bytes)1,061,326,08082,895,040
Size1012.2 MB 79.1 MB
Events in quadrant A5,391,803741,717
Events in quadrant B3,724,687774,195
Events in quadrant C16,389,472398,091
Events in quadrant D13,266,288126,714

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205841
B0155941
C0530961
D0439741

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66472613.926583%
B66471422.136302%
C6648550782.836943%
D6648664199.894705%

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 7607 6648 36 36 0.47% 0.54%
B 7607 6648 65 65 0.85% 0.98%
C 7608 6648 5588 5588 73.45% 84.06%
D 7607 6647 3628 3628 47.69% 54.58%

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 0 228 792860 5144.37 748 733 154.0
A 10 83 698003 4528.33 748 733 154.0
A 15 222 546243 3542.74 748 733 154.0
B 3 25 180216 1207.67 757 736 148.6
B 4 251 127233 851.16 757 736 148.6
B 3 42 110733 740.14 757 736 148.6
C 15 142 6122712 63280.63 405 407 96.7
C 15 174 6057685 62608.5 405 407 96.7
C 15 158 1560102 16121.13 405 407 96.7
D 4 216 5385479 107170.97 156 149 50.2
D 4 212 3733106 74287.86 156 149 50.2
D 14 210 647435 12881.34 156 149 50.2

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