ASTROSAT CZTI

Data Quality Report

Orbit 33373

Creation date: 2024-06-27T20:48:08.024400
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/AS1A10_064T02_9000004788_33373cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33373cztM0_level2_quad_clean.evt
Size (bytes)779,400,000124,871,040
Size743.3 MB 119.1 MB
Events in quadrant A4,190,976817,939
Events in quadrant B5,679,038808,775
Events in quadrant C4,865,587808,813
Events in quadrant D8,258,553719,655

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198661435
B0243661659
C0214811565
D0346673975

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019913
B019913
C019814
D019917

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A906560.066189%
B90383393.750830%
C9049600.663057%
D89017468.381081%

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 11091 9233 0 0 0.00% 0.00%
B 10987 9179 224 224 2.04% 2.44%
C 11081 9204 47 47 0.42% 0.51%
D 10980 9035 689 689 6.28% 7.63%

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 15 174 54455 248.12 1062 1039 215.3
A 7 16 18894 82.94 1062 1039 215.3
A 13 254 14060 60.48 1062 1039 215.3
B 5 172 780073 3915.12 1041 1014 199.0
B 0 219 586058 2940.11 1041 1014 199.0
B 5 200 84740 420.76 1041 1014 199.0
C 15 214 386682 1628.52 1027 1036 236.8
C 0 10 131029 548.94 1027 1036 236.8
C 15 208 110317 461.48 1027 1036 236.8
D 8 195 1703164 6997.24 978 953 243.3
D 2 250 1678032 6893.93 978 953 243.3
D 12 218 468519 1922.01 978 953 243.3

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