ASTROSAT CZTI

Data Quality Report

Orbit 08006

Creation date: 2024-06-27T15:26:44.121404
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/AS1G06_154T01_9000001100_08006cztM0_level2.evt modeM0/AS1G06_154T01_9000001100_08006cztM0_level2_quad_clean.evt
Size (bytes)441,031,68088,202,880
Size420.6 MB 84.1 MB
Events in quadrant A3,011,509549,267
Events in quadrant B3,373,760564,910
Events in quadrant C3,029,897566,320
Events in quadrant D3,493,555531,180

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135543
B0144252
C0136052
D0151152

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6594180.272975%
B6594751.137398%
C659490.136488%
D65941271.925993%

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 7599 6595 0 0 0.00% 0.00%
B 7599 6595 40 40 0.53% 0.61%
C 7599 6595 0 0 0.00% 0.00%
D 7599 6595 90 90 1.18% 1.36%

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 0 226 7130 40.1 781 765 158.7
A 13 14 6858 38.39 781 765 158.7
A 12 194 6497 36.12 781 765 158.7
B 5 250 174266 1145.55 787 769 151.5
B 5 255 104994 688.17 787 769 151.5
B 11 51 18936 119.95 787 769 151.5
C 1 16 14309 75.31 769 772 179.7
C 12 4 8130 40.94 769 772 179.7
C 13 61 5972 28.93 769 772 179.7
D 1 52 431653 2347.99 751 734 183.5
D 2 14 132403 717.44 751 734 183.5
D 11 144 51877 278.67 751 734 183.5

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