ASTROSAT CZTI

Data Quality Report

Orbit 10163

Creation date: 2024-06-27T15:55:49.527886
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/AS1A03_039T01_9000001462_10163cztM0_level2.evt modeM0/AS1A03_039T01_9000001462_10163cztM0_level2_quad_clean.evt
Size (bytes)439,643,52089,565,120
Size419.3 MB 85.4 MB
Events in quadrant A2,915,991570,892
Events in quadrant B3,198,621576,644
Events in quadrant C2,801,781572,008
Events in quadrant D3,958,659541,703

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132152
B0138241
C0131431
D0159801

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6470150.231839%
B6470400.618238%
C647060.092736%
D64701271.962906%

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 7360 6471 0 0 0.00% 0.00%
B 7360 6471 1 1 0.01% 0.02%
C 7360 6471 0 0 0.00% 0.00%
D 7360 6471 92 92 1.25% 1.42%

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 9607 58.44 749 734 151.8
A 15 223 7240 42.85 749 734 151.8
A 0 226 6870 40.41 749 734 151.8
B 0 219 72508 499.95 752 733 143.6
B 11 51 48961 335.93 752 733 143.6
B 4 173 35105 239.42 752 733 143.6
C 13 61 5463 28.43 718 722 166.8
C 14 67 2486 10.58 718 722 166.8
C 3 202 1746 6.14 718 722 166.8
D 8 195 593163 3425.4 712 690 173.0
D 7 71 226457 1305.28 712 690 173.0
D 5 222 175653 1011.55 712 690 173.0

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