ASTROSAT CZTI

Data Quality Report

Orbit 47588

Creation date: 2024-07-16T15:52:42.022512
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_080T03_9000006336_47588cztM0_level2.fits modeM0/AS1A13_080T03_9000006336_47588cztM0_level2_quad_clean.evt
Size (bytes)1,977,333,120228,127,680
Size1.8 GB 217.6 MB
Events in quadrant A17,425,1201,716,671
Events in quadrant B8,476,5321,802,797
Events in quadrant C7,205,1061,754,888
Events in quadrant D38,788,250470,720

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0631108
B0368353
C0341606
D01266853

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03420
B03420
C03420
D03420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A168417504.453417%
B168432441.448673%
C168411260.748174%
D168431246874.024817%

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 17357 16842 248 248 1.43% 1.47%
B 17358 16844 35 35 0.20% 0.21%
C 17358 16844 1 1 0.01% 0.01%
D 17358 16843 12339 12339 71.09% 73.26%

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 8897051 23658.54 1822 1781 376.0
A 9 191 1209693 3212.65 1822 1781 376.0
A 13 248 255998 676.13 1822 1781 376.0
B 5 29 544656 1507.62 1837 1774 360.1
B 0 200 422830 1169.3 1837 1774 360.1
B 0 190 79776 216.62 1837 1774 360.1
C 3 233 54813 124.62 1819 1822 425.2
C 1 3 25244 55.08 1819 1822 425.2
C 14 254 19840 42.37 1819 1822 425.2
D 2 165 33847111 134806.45 996 965 251.1
D 2 249 577417 2295.96 996 965 251.1
D 7 55 116708 460.99 996 965 251.1

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