ASTROSAT CZTI

Data Quality Report

Orbit 46707

Creation date: 2024-06-27T23:26:40.773171
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_037T01_9000006256_46707cztM0_level2.fits modeM0/AS1A13_037T01_9000006256_46707cztM0_level2_quad_clean.evt
Size (bytes)472,049,280108,936,000
Size450.2 MB 103.9 MB
Events in quadrant A6,400,972709,047
Events in quadrant B3,513,614754,463
Events in quadrant C3,081,760729,370
Events in quadrant D3,976,091655,650

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233232
B0150172
C0137612
D0164292

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64573485.389500%
B64571592.462444%
C6457510.789840%
D64571752.710237%

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 7602 6458 82 82 1.08% 1.27%
B 7602 6458 19 19 0.25% 0.29%
C 7602 6458 24 24 0.32% 0.37%
D 7602 6458 98 98 1.29% 1.52%

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 3430821 22675.87 728 714 151.3
A 13 248 56466 368.57 728 714 151.3
A 9 191 47395 308.6 728 714 151.3
B 4 171 322188 2173.52 744 722 147.9
B 0 190 59520 397.55 744 722 147.9
B 3 112 45416 302.19 744 722 147.9
C 12 2 101538 582.29 735 740 173.1
C 1 3 78992 452.05 735 740 173.1
C 14 254 18381 101.91 735 740 173.1
D 1 52 624076 3402.47 725 702 183.2
D 13 171 135787 737.31 725 702 183.2
D 13 249 125313 680.15 725 702 183.2

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