ASTROSAT CZTI

Data Quality Report

Orbit 08788

Creation date: 2024-06-27T15:37:14.382359
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/AS1G07_010T03_9000001224_08788cztM0_level2.evt modeM0/AS1G07_010T03_9000001224_08788cztM0_level2_quad_clean.evt
Size (bytes)400,432,32052,407,360
Size381.9 MB 50.0 MB
Events in quadrant A3,137,250316,748
Events in quadrant B2,260,078323,706
Events in quadrant C2,180,462318,569
Events in quadrant D4,225,896293,352

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124482
B099471
C097981
D0160513

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A47613807.981516%
B4761511.071204%
C4761180.378072%
D47602936.155462%

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 5656 4762 317 317 5.60% 6.66%
B 5656 4762 1 1 0.02% 0.02%
C 5656 4763 0 0 0.00% 0.00%
D 5656 4762 240 240 4.24% 5.04%

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 15 223 637040 5636.4 548 533 112.9
A 15 239 258874 2287.66 548 533 112.9
A 8 5 84813 746.31 548 533 112.9
B 4 173 28026 249.23 571 558 110.2
B 12 111 12673 109.93 571 558 110.2
B 11 111 10086 86.45 571 558 110.2
C 14 67 11166 81.32 554 557 130.5
C 13 61 4252 28.32 554 557 130.5
C 9 68 3929 25.85 554 557 130.5
D 2 16 2008011 14981.79 538 525 134.0
D 2 152 81254 602.48 538 525 134.0
D 1 52 55902 413.28 538 525 134.0

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