ASTROSAT CZTI

Data Quality Report

Orbit 15453

Creation date: 2024-06-27T17:08:42.159230
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_032T01_9000002280_15453cztM0_level2.evt modeM0/AS1G08_032T01_9000002280_15453cztM0_level2_quad_clean.evt
Size (bytes)496,293,12087,482,880
Size473.3 MB 83.4 MB
Events in quadrant A3,518,952545,144
Events in quadrant B3,399,895558,139
Events in quadrant C3,924,274541,015
Events in quadrant D3,711,482516,922

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150553
B0144762
C0156432
D0159402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70021572.242217%
B70021161.656670%
C70021091.556698%
D70021542.199372%

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 8708 7004 26 26 0.30% 0.37%
B 8708 7004 1 1 0.01% 0.01%
C 8708 7005 34 34 0.39% 0.49%
D 8708 7005 95 95 1.09% 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 14 238 192657 1125.22 844 825 170.5
A 14 237 71242 413.04 844 825 170.5
A 9 143 7612 39.81 844 825 170.5
B 0 213 20836 121.99 849 828 164.0
B 12 111 20025 117.04 849 828 164.0
B 0 214 17770 103.29 849 828 164.0
C 3 233 407865 2139.06 821 825 190.3
C 9 54 273892 1435.01 821 825 190.3
C 10 22 25550 129.93 821 825 190.3
D 1 52 460213 2285.91 819 792 201.0
D 5 222 71183 350.24 819 792 201.0
D 2 234 25933 125.09 819 792 201.0

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