ASTROSAT CZTI

Data Quality Report

Orbit 14404

Creation date: 2024-06-27T16:54:40.704026
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/AS1A04_023T02_9000002124_14404cztM0_level2.evt modeM0/AS1A04_023T02_9000002124_14404cztM0_level2_quad_clean.evt
Size (bytes)540,912,96074,816,640
Size515.9 MB 71.4 MB
Events in quadrant A3,551,066453,436
Events in quadrant B3,719,631455,689
Events in quadrant C4,313,695445,817
Events in quadrant D4,328,559428,848

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146663
B0151832
C0173762
D0174562

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69131221.764791%
B69131682.430204%
C6913831.200636%
D69131351.952842%

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 9154 6915 1 1 0.01% 0.01%
B 9154 6914 3 3 0.03% 0.04%
C 9154 6916 0 0 0.00% 0.00%
D 9154 6916 92 92 1.01% 1.33%

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 12 189 53251 291.34 886 868 179.8
A 4 2 31203 168.72 886 868 179.8
A 9 143 30013 162.1 886 868 179.8
B 0 189 176084 1027.5 883 862 170.5
B 0 229 31784 181.33 883 862 170.5
B 4 142 24147 136.54 883 862 170.5
C 3 233 970522 4887.7 856 861 198.4
C 13 61 6012 25.96 856 861 198.4
C 3 234 3369 12.64 856 861 198.4
D 13 122 849728 4163.32 850 830 203.9
D 2 120 94947 461.59 850 830 203.9
D 10 199 38535 184.92 850 830 203.9

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