ASTROSAT CZTI

Data Quality Report

Orbit 47726

Creation date: 2024-07-25T23:22:41.263153
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/AS1T05_213T01_9000006344_47726cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47726cztM0_level2_quad_clean.evt
Size (bytes)532,353,600114,324,480
Size507.7 MB 109.0 MB
Events in quadrant A7,190,105753,503
Events in quadrant B4,448,411755,292
Events in quadrant C3,287,235758,857
Events in quadrant D4,218,753689,627

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263491
B0182250
C0154000
D0178600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72442223.064605%
B72442843.920486%
C7244360.496963%
D72441642.263943%

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 7244 7244 0 0 0.00% 0.00%
B 7244 7244 64 64 0.88% 0.88%
C 7244 7244 32 32 0.44% 0.44%
D 7244 7244 151 151 2.08% 2.08%

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 3975220 23975.15 797 777 165.8
A 9 191 110888 664.23 797 777 165.8
A 13 248 23547 137.36 797 777 165.8
B 0 200 643631 4170.25 785 759 154.2
B 5 255 594956 3854.5 785 759 154.2
B 4 171 59170 378.91 785 759 154.2
C 12 2 182695 997.1 780 782 182.4
C 14 254 31392 167.78 780 782 182.4
C 12 249 14634 75.93 780 782 182.4
D 2 165 475538 2422.68 780 754 196.0
D 2 249 393391 2003.51 780 754 196.0
D 12 16 87597 443.13 780 754 196.0

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