ASTROSAT CZTI

Data Quality Report

Orbit 45310

Creation date: 2024-06-27T23:12:14.575565
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_047T01_9000006068_45310cztM0_level2.fits modeM0/AS1A13_047T01_9000006068_45310cztM0_level2_quad_clean.evt
Size (bytes)475,505,28097,254,720
Size453.5 MB 92.7 MB
Events in quadrant A5,567,649645,576
Events in quadrant B3,420,653666,762
Events in quadrant C3,383,915637,710
Events in quadrant D4,749,164562,302

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209971
B0145051
C0144461
D0186381

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61871963.167933%
B61871302.101180%
C61881402.262443%
D61883515.672269%

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 7153 6189 144 144 2.01% 2.33%
B 7153 6188 80 80 1.12% 1.29%
C 7154 6190 125 125 1.75% 2.02%
D 7154 6188 360 360 5.03% 5.82%

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 2506015 17811.12 672 658 140.7
A 13 248 217759 1543.42 672 658 140.7
A 7 16 161350 1142.39 672 658 140.7
B 0 186 206419 1531.09 677 659 134.4
B 4 158 137907 1021.28 677 659 134.4
B 0 155 100509 743.0 677 659 134.4
C 14 254 468051 2991.56 658 662 156.2
C 12 2 139144 886.37 658 662 156.2
C 15 208 90897 577.56 658 662 156.2
D 1 52 1190760 7224.16 643 622 164.7
D 13 171 280980 1701.78 643 622 164.7
D 2 249 165619 1001.54 643 622 164.7

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