ASTROSAT CZTI

Data Quality Report

Orbit 45014

Creation date: 2024-06-27T23:09:02.305138
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/AS1A13_020T01_9000006040_45014cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45014cztM0_level2_quad_clean.evt
Size (bytes)600,580,800109,226,880
Size572.8 MB 104.2 MB
Events in quadrant A5,851,653738,741
Events in quadrant B4,440,541741,686
Events in quadrant C4,045,325719,476
Events in quadrant D7,350,366618,204

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224181
B0178901
C0170981
D0268421

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70143304.704876%
B70154616.571632%
C70154135.887384%
D701593013.257306%

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 7214 7016 37 37 0.51% 0.53%
B 7215 7017 181 181 2.51% 2.58%
C 7215 7017 230 230 3.19% 3.28%
D 7215 7017 583 583 8.08% 8.31%

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 10 83 2490126 14798.81 804 783 168.2
A 13 248 208526 1235.0 804 783 168.2
A 0 243 32196 186.75 804 783 168.2
B 0 189 645321 4084.05 796 770 157.8
B 4 171 146125 921.01 796 770 157.8
B 5 255 110342 694.28 796 770 157.8
C 14 254 688750 3767.9 775 780 182.6
C 12 2 240421 1312.47 775 780 182.6
C 15 208 47833 257.7 775 780 182.6
D 11 241 895884 4667.4 754 728 191.8
D 5 235 621877 3238.71 754 728 191.8
D 1 52 594421 3095.55 754 728 191.8

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