ASTROSAT CZTI

Data Quality Report

Orbit 03189

Creation date: 2024-06-27T14:25:43.108845
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/AS1G05_127T01_9000000436_03189cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03189cztM0_level2_quad_clean.evt
Size (bytes)621,420,48078,652,800
Size592.6 MB 75.0 MB
Events in quadrant A3,587,757470,374
Events in quadrant B3,778,073473,061
Events in quadrant C7,085,379459,035
Events in quadrant D3,853,736450,048

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158321
B0161610
C0262400
D0169230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75992323.053033%
B75992313.039874%
C75995677.461508%
D75992603.421503%

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 7599 7599 0 0 0.00% 0.00%
B 7599 7599 9 9 0.12% 0.12%
C 7599 7599 311 311 4.09% 4.09%
D 7599 7599 72 72 0.95% 0.95%

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 0 149 32241 166.41 913 893 188.4
A 5 113 22267 113.46 913 893 188.4
A 0 226 12498 61.6 913 893 188.4
B 4 80 121528 661.86 924 902 182.3
B 4 200 23370 123.28 924 902 182.3
B 0 231 17930 93.43 924 902 182.3
C 12 206 3326668 16340.37 867 870 203.5
C 14 223 187893 918.88 867 870 203.5
C 6 80 68841 333.96 867 870 203.5
D 5 233 249608 1160.87 880 853 214.3
D 13 223 112126 519.28 880 853 214.3
D 13 120 66184 304.88 880 853 214.3

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