ASTROSAT CZTI

Data Quality Report

Orbit 08259

Creation date: 2024-06-27T15:30:13.981667
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_086T02_9000001144_08259cztM0_level2.evt modeM0/AS1G07_086T02_9000001144_08259cztM0_level2_quad_clean.evt
Size (bytes)873,823,68090,976,320
Size833.3 MB 86.8 MB
Events in quadrant A15,291,664320,773
Events in quadrant B3,840,201654,089
Events in quadrant C3,398,380639,852
Events in quadrant D3,427,235618,023

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0506532
B0164322
C0155794
D0158442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7487517369.093095%
B74871662.217176%
C7486320.427465%
D7487350.467477%

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 7967 7488 4702 4702 59.02% 62.79%
B 7967 7490 21 21 0.26% 0.28%
C 7967 7490 3 3 0.04% 0.04%
D 7967 7490 7 7 0.09% 0.09%

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 0 128 13454066 138823.52 466 454 96.9
A 15 234 43418 443.33 466 454 96.9
A 0 226 4200 38.65 466 454 96.9
B 10 16 203608 1147.07 904 879 176.7
B 11 51 75597 422.76 904 879 176.7
B 0 214 38787 214.49 904 879 176.7
C 9 54 11817 54.1 866 868 202.4
C 13 61 6559 28.12 866 868 202.4
C 8 128 4304 16.98 866 868 202.4
D 1 52 80165 376.1 865 837 210.9
D 11 144 44585 207.41 865 837 210.9
D 2 234 27443 126.14 865 837 210.9

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