ASTROSAT CZTI

Data Quality Report

Orbit 45778

Creation date: 2024-06-27T23:16:04.620479
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_183T01_9000006124_45778cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45778cztM0_level2_quad_clean.evt
Size (bytes)618,842,880108,861,120
Size590.2 MB 103.8 MB
Events in quadrant A6,058,466750,574
Events in quadrant B6,832,145703,373
Events in quadrant C3,549,961747,800
Events in quadrant D5,984,486659,012

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220651
B0248341
C0145081
D0221831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62412574.117930%
B624192114.757250%
C62411852.964269%
D62415498.796667%

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 7431 6242 20 20 0.27% 0.32%
B 7431 6242 483 483 6.50% 7.74%
C 7431 6242 78 78 1.05% 1.25%
D 7431 6242 366 366 4.93% 5.86%

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 2893247 17906.29 776 760 161.5
A 13 248 145596 896.62 776 760 161.5
A 13 254 11934 69.17 776 760 161.5
B 3 112 3209603 22057.94 744 722 145.5
B 4 158 113655 776.3 744 722 145.5
B 0 171 76536 521.15 744 722 145.5
C 14 254 471964 2656.11 758 764 177.4
C 1 3 59191 329.34 758 764 177.4
C 12 250 21496 116.86 758 764 177.4
D 11 241 887885 4764.81 747 724 186.2
D 1 52 802804 4307.85 747 724 186.2
D 2 249 510277 2736.73 747 724 186.2

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