ASTROSAT CZTI

Data Quality Report

Orbit 45940

Creation date: 2024-06-27T23:17:57.540928
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_033T03_9000006144_45940cztM0_level2.fits modeM0/AS1A13_033T03_9000006144_45940cztM0_level2_quad_clean.evt
Size (bytes)565,752,960113,630,400
Size539.5 MB 108.4 MB
Events in quadrant A6,194,300751,426
Events in quadrant B5,548,636761,921
Events in quadrant C3,881,794762,190
Events in quadrant D4,774,403676,931

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228902
B0212812
C0165482
D0190622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70092363.367099%
B70095437.747182%
C70091512.154373%
D70093294.693965%

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 7909 7009 3 3 0.04% 0.04%
B 7909 7010 299 299 3.78% 4.27%
C 7909 7010 128 128 1.62% 1.83%
D 7909 7010 269 269 3.40% 3.84%

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 3082945 18692.02 792 774 164.9
A 15 14 33937 201.12 792 774 164.9
A 3 137 9303 51.72 792 774 164.9
B 3 112 2296387 14745.14 783 756 155.7
B 4 158 72890 463.33 783 756 155.7
B 10 7 35798 225.08 783 756 155.7
C 14 254 715002 3877.28 780 785 184.2
C 10 20 73197 393.1 780 785 184.2
C 12 249 18922 98.46 780 785 184.2
D 1 47 641094 3295.54 771 748 194.3
D 12 233 380829 1956.08 771 748 194.3
D 11 241 315888 1621.87 771 748 194.3

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