ASTROSAT CZTI

Data Quality Report

Orbit 06430

Creation date: 2024-06-27T15:07:07.035992
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/AS1A02_191T02_9000000852_06430cztM0_level2.evt modeM0/AS1A02_191T02_9000000852_06430cztM0_level2_quad_clean.evt
Size (bytes)446,967,36093,409,920
Size426.3 MB 89.1 MB
Events in quadrant A3,126,014592,566
Events in quadrant B3,275,709607,576
Events in quadrant C3,044,808584,346
Events in quadrant D3,614,492557,513

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142972
B0145381
C0142661
D0156591

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69881051.502576%
B69881331.903263%
C6988931.330853%
D69881071.531196%

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 7198 6989 0 0 0.00% 0.00%
B 7198 6989 11 11 0.15% 0.16%
C 7198 6989 0 0 0.00% 0.00%
D 7198 6989 16 16 0.22% 0.23%

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 8537 46.97 806 785 165.0
A 0 226 7935 43.32 806 785 165.0
A 12 194 7662 41.67 806 785 165.0
B 0 219 41835 262.68 812 794 156.2
B 15 204 33699 210.61 812 794 156.2
B 0 228 30256 188.57 812 794 156.2
C 13 61 6155 29.77 777 781 180.5
C 8 128 6082 29.37 777 781 180.5
C 8 112 2848 11.45 777 781 180.5
D 2 152 347194 1827.97 778 755 189.5
D 11 241 199515 1048.75 778 755 189.5
D 2 14 30662 157.8 778 755 189.5

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