ASTROSAT CZTI

Data Quality Report

Orbit 44590

Creation date: 2024-06-27T23:04:15.102036
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_009T03_9000006006_44590cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44590cztM0_level2_quad_clean.evt
Size (bytes)479,315,520118,411,200
Size457.1 MB 112.9 MB
Events in quadrant A5,114,837803,361
Events in quadrant B3,620,513831,623
Events in quadrant C4,051,697782,996
Events in quadrant D4,444,887708,778

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207522
B0148012
C0162072
D0173142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65801792.720365%
B65801972.993921%
C65801972.993921%
D65803034.604863%

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 7830 6580 10 10 0.13% 0.15%
B 7830 6580 73 73 0.93% 1.11%
C 7830 6580 137 137 1.75% 2.08%
D 7830 6580 242 242 3.09% 3.68%

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 1909859 11424.54 812 797 167.1
A 13 248 24268 140.46 812 797 167.1
A 10 248 21884 126.19 812 797 167.1
B 5 172 321046 2036.4 814 793 157.3
B 0 155 38857 242.04 814 793 157.3
B 0 186 25386 156.38 814 793 157.3
C 12 2 563706 3022.43 795 801 186.2
C 3 233 246963 1321.73 795 801 186.2
C 14 254 98089 522.37 795 801 186.2
D 13 249 481976 2420.62 785 762 198.8
D 1 52 428565 2151.95 785 762 198.8
D 2 249 268899 1348.79 785 762 198.8

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