ASTROSAT CZTI

Data Quality Report

Orbit 14443

Creation date: 2024-06-27T16:55:13.970440
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/AS1G08_025T01_9000002130_14443cztM0_level2.evt modeM0/AS1G08_025T01_9000002130_14443cztM0_level2_quad_clean.evt
Size (bytes)546,451,20088,401,600
Size521.1 MB 84.3 MB
Events in quadrant A3,268,996570,318
Events in quadrant B3,595,961567,136
Events in quadrant C4,320,793561,433
Events in quadrant D4,940,636542,098

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138353
B0149972
C0172012
D0190112

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6244390.624600%
B62441171.873799%
C6244620.992953%
D62442463.939782%

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 7475 6246 7 7 0.09% 0.11%
B 7475 6245 41 41 0.55% 0.66%
C 7475 6245 1 1 0.01% 0.02%
D 7475 6245 210 210 2.81% 3.36%

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 8 15 111291 681.26 800 783 162.2
A 12 189 49110 297.93 800 783 162.2
A 4 2 24206 144.4 800 783 162.2
B 0 219 113139 750.05 799 782 149.8
B 10 16 101774 674.18 799 782 149.8
B 15 222 100360 664.74 799 782 149.8
C 3 233 1257044 6990.61 783 789 179.7
C 14 234 6838 33.66 783 789 179.7
C 13 61 5612 26.84 783 789 179.7
D 12 110 1749629 9352.34 776 757 187.0
D 2 120 203161 1082.38 776 757 187.0
D 10 199 42391 222.64 776 757 187.0

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