ASTROSAT CZTI

Data Quality Report

Orbit 18619

Creation date: 2024-06-27T17:52:31.377261
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/AS1A05_104T07_9000002780_18619cztM0_level2.evt modeM0/AS1A05_104T07_9000002780_18619cztM0_level2_quad_clean.evt
Size (bytes)131,002,56033,350,400
Size124.9 MB 31.8 MB
Events in quadrant A1,189,677214,001
Events in quadrant B890,498226,859
Events in quadrant C857,071221,086
Events in quadrant D906,040216,774

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047912
B039343
C038312
D039902

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A178519010.644258%
B17841196.670404%
C1784995.549327%
D1784864.820628%

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 1915 1787 81 81 4.23% 4.53%
B 1914 1786 0 0 0.00% 0.00%
C 1914 1786 0 0 0.00% 0.00%
D 1914 1786 5 5 0.26% 0.28%

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 14 111 370227 8286.41 210 205 44.7
A 9 143 6570 142.54 210 205 44.7
A 0 13 3877 82.23 210 205 44.7
B 0 230 38668 864.89 217 210 44.5
B 12 111 5381 116.29 217 210 44.5
B 11 111 4506 96.61 217 210 44.5
C 14 238 31723 617.08 210 211 51.1
C 3 233 3642 67.19 210 211 51.1
C 13 61 1485 24.95 210 211 51.1
D 1 52 79079 1493.87 210 203 52.8
D 7 238 17966 336.42 210 203 52.8
D 8 195 9625 178.45 210 203 52.8

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