ASTROSAT CZTI

Data Quality Report

Orbit 47082

Creation date: 2024-06-27T23:31:30.002351
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/AS1C09_003T01_9000006298_47082cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47082cztM0_level2_quad_clean.evt
Size (bytes)51,958,0808,674,560
Size49.6 MB 8.3 MB
Events in quadrant A507,55236,725
Events in quadrant B482,69052,036
Events in quadrant C416,18161,005
Events in quadrant D460,21357,467

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166
B0134
C0155
D0145

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01654414653
B01186710007
C096197842
D0111199258

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09068
B09981
C08462
D09373

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A475194.000000%
B662213.172205%
C80810.123762%
D75660.793651%

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 5681 735 0 0 0.00% 0.00%
B 6014 1012 1 1 0.02% 0.10%
C 6046 1217 0 0 0.00% 0.00%
D 6060 1127 0 0 0.00% 0.00%

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 273991 18932.99 59 58 14.5
A 0 243 1732 115.7 59 58 14.5
A 13 254 894 57.78 59 58 14.5
B 5 173 65919 3597.05 80 77 18.3
B 3 112 62938 3434.19 80 77 18.3
B 5 255 14435 784.4 80 77 18.3
C 14 220 27242 1100.79 97 97 24.7
C 14 254 3424 134.92 97 97 24.7
C 3 233 2515 98.06 97 97 24.7
D 12 233 26110 1079.82 91 87 24.1
D 1 52 18766 775.08 91 87 24.1
D 13 171 18294 755.49 91 87 24.1

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