ASTROSAT CZTI

Data Quality Report

Orbit 47589

Creation date: 2024-07-16T17:30:42.732085
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_47589cztM0_level2.fits modeM0/AS1A13_080T03_9000006336_47589cztM0_level2_quad_clean.evt
Size (bytes)2,108,894,400281,920,320
Size2.0 GB 268.9 MB
Events in quadrant A20,600,3892,014,273
Events in quadrant B11,591,8692,093,987
Events in quadrant C8,321,3832,057,676
Events in quadrant D36,076,9221,050,187

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0370

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0755074
B0474344
C0389034
D01204584

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03900
B03900
C03900
D03900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1914410065.254910%
B191455712.982502%
C191451360.710368%
D19144922448.182198%

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 22773 19146 368 368 1.62% 1.92%
B 22774 19144 264 264 1.16% 1.38%
C 22774 19145 0 0 0.00% 0.00%
D 22773 19143 9285 9285 40.77% 48.50%

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 10875961 24930.61 2114 2066 436.2
A 9 191 814963 1863.73 2114 2066 436.2
A 13 248 655124 1497.27 2114 2066 436.2
B 5 29 1799312 4382.64 2117 2051 410.1
B 0 200 744543 1810.58 2117 2051 410.1
B 5 172 378943 919.06 2117 2051 410.1
C 3 233 65039 128.11 2113 2129 491.1
C 13 61 14098 24.37 2113 2129 491.1
C 0 207 12370 20.85 2113 2129 491.1
D 2 165 25193682 58535.65 1685 1631 430.4
D 2 249 1780372 4133.04 1685 1631 430.4
D 14 34 823078 1908.69 1685 1631 430.4

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