ASTROSAT CZTI

Data Quality Report

Orbit 03436

Creation date: 2024-06-27T14:28:59.901948
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_167T01_9000000456_03436cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03436cztM0_level2_quad_clean.evt
Size (bytes)531,898,560100,002,240
Size507.3 MB 95.4 MB
Events in quadrant A3,599,195628,334
Events in quadrant B4,344,128625,958
Events in quadrant C4,241,076630,360
Events in quadrant D3,401,288608,480

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160122
B0180221
C0181001
D0160381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76951421.845354%
B76952873.729695%
C76952943.820663%
D76951181.533463%

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 7900 7697 10 10 0.13% 0.13%
B 7900 7697 106 106 1.34% 1.38%
C 7900 7697 198 198 2.51% 2.57%
D 7900 7697 17 17 0.22% 0.22%

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 0 118 91096 494.83 886 868 182.3
A 8 15 30537 162.71 886 868 182.3
A 14 249 23443 123.81 886 868 182.3
B 2 249 382805 2188.45 893 873 174.5
B 4 81 324301 1853.23 893 873 174.5
B 15 204 152282 867.57 893 873 174.5
C 1 192 725505 3674.08 847 853 197.2
C 14 234 130357 656.6 847 853 197.2
C 15 208 38706 191.92 847 853 197.2
D 13 223 61276 293.65 854 827 205.9
D 2 31 52343 250.26 854 827 205.9
D 9 85 27825 131.15 854 827 205.9

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