ASTROSAT CZTI

Data Quality Report

Orbit 38032

Creation date: 2024-06-27T21:47:34.012957
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/AS1A11_024T01_9000005358_38032cztM0_level2.fits modeM0/AS1A11_024T01_9000005358_38032cztM0_level2_quad_clean.evt
Size (bytes)404,720,640103,294,080
Size386.0 MB 98.5 MB
Events in quadrant A3,205,468702,951
Events in quadrant B3,773,821700,044
Events in quadrant C2,959,463694,429
Events in quadrant D4,579,953614,255

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130733
B0149772
C0123262
D0174662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5953220.369562%
B59531943.258861%
C5953100.167983%
D59532744.602721%

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 7325 5954 3 3 0.04% 0.05%
B 7325 5954 145 145 1.98% 2.44%
C 7325 5954 2 2 0.03% 0.03%
D 7325 5954 248 248 3.39% 4.17%

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 430261 3011.02 691 678 142.7
A 12 16 49719 343.74 691 678 142.7
A 12 189 20695 140.3 691 678 142.7
B 5 184 331253 2515.04 678 659 131.4
B 5 172 196145 1487.19 678 659 131.4
B 5 255 163422 1238.24 678 659 131.4
C 15 214 252654 1602.23 672 676 157.3
C 1 23 32087 199.73 672 676 157.3
C 14 254 20560 126.43 672 676 157.3
D 12 227 567825 3511.48 660 643 161.5
D 2 250 257864 1592.48 660 643 161.5
D 13 171 243305 1502.34 660 643 161.5

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