ASTROSAT CZTI

Data Quality Report

Orbit 03327

Creation date: 2024-06-27T14:27:37.186931
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_246T01_9000000450_03327cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03327cztM0_level2_quad_clean.evt
Size (bytes)505,077,12085,550,400
Size481.7 MB 81.6 MB
Events in quadrant A3,381,431519,906
Events in quadrant B4,234,711534,651
Events in quadrant C3,486,231530,181
Events in quadrant D3,703,313502,698

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149693
B0174352
C0151312
D0161382

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7221580.803213%
B72211011.398698%
C7221460.637031%
D72211291.786456%

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 9546 7223 10 10 0.10% 0.14%
B 9546 7223 2 2 0.02% 0.03%
C 9546 7223 9 9 0.09% 0.12%
D 9546 7223 71 71 0.74% 0.98%

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 7 16 38298 213.29 860 843 175.6
A 0 118 17982 97.6 860 843 175.6
A 0 226 10465 54.79 860 843 175.6
B 15 204 729067 4312.55 880 859 168.9
B 0 229 52045 303.13 880 859 168.9
B 14 167 29162 167.61 880 859 168.9
C 9 54 83759 418.07 850 857 198.3
C 12 175 26268 128.15 850 857 198.3
C 6 80 24328 118.36 850 857 198.3
D 13 223 384931 1900.66 836 813 202.1
D 13 239 85621 419.64 836 813 202.1
D 10 172 51541 251.01 836 813 202.1

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