ASTROSAT CZTI

Data Quality Report

Orbit 45309

Creation date: 2024-06-27T23:12:12.929809
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_073T04_9000006066_45309cztM0_level2.fits modeM0/AS1A13_073T04_9000006066_45309cztM0_level2_quad_clean.evt
Size (bytes)78,076,80019,854,720
Size74.5 MB 18.9 MB
Events in quadrant A1,011,167133,016
Events in quadrant B589,577133,784
Events in quadrant C594,564123,022
Events in quadrant D595,095117,783

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037460
B026050
C027130
D026740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A124020.161290%
B124170.564061%
C1241362.900886%
D1241110.886382%

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 1240 1240 0 0 0.00% 0.00%
B 1241 1241 6 6 0.48% 0.48%
C 1241 1241 24 24 1.93% 1.93%
D 1241 1241 8 8 0.64% 0.64%

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 495768 16746.54 132 129 29.6
A 4 208 2674 85.99 132 129 29.6
A 3 137 1520 47.0 132 129 29.6
B 5 255 30658 1075.27 131 127 28.4
B 0 183 29000 1016.88 131 127 28.4
B 0 186 6344 218.96 131 127 28.4
C 14 254 87033 2706.1 127 128 32.1
C 3 233 3700 111.23 127 128 32.1
C 11 16 3484 104.5 127 128 32.1
D 13 171 35079 1018.3 131 127 34.3
D 2 120 21977 636.59 131 127 34.3
D 5 222 8803 252.77 131 127 34.3

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