ASTROSAT CZTI

Data Quality Report

Orbit 47610

Creation date: 2024-07-18T03:25:14.364393
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_071T01_9000006340_47610cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47610cztM0_level2_quad_clean.evt
Size (bytes)600,727,680123,765,120
Size572.9 MB 118.0 MB
Events in quadrant A8,483,203810,171
Events in quadrant B4,594,381832,965
Events in quadrant C3,450,191816,849
Events in quadrant D5,103,337743,331

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0311133
B0190701
C0162361
D0207961

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78224185.343902%
B78223093.950396%
C782220.025569%
D78231852.364822%

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 7822 7822 129 129 1.65% 1.65%
B 7822 7822 154 154 1.97% 1.97%
C 7822 7822 1 1 0.01% 0.01%
D 7823 7823 133 133 1.70% 1.70%

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 4223137 23168.69 868 848 182.2
A 9 191 701309 3843.59 868 848 182.2
A 15 235 102054 555.34 868 848 182.2
B 12 48 879408 5112.19 866 840 171.9
B 0 200 139427 806.41 866 840 171.9
B 5 172 44037 251.35 866 840 171.9
C 0 207 59577 289.06 858 860 203.1
C 3 233 20259 95.5 858 860 203.1
C 14 254 18810 88.37 858 860 203.1
D 2 249 609065 2837.1 855 825 214.4
D 2 165 603594 2811.58 855 825 214.4
D 7 55 218906 1017.23 855 825 214.4

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