ASTROSAT CZTI

Data Quality Report

Orbit 06125

Creation date: 2024-06-27T15:03:06.080450
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/AS1G06_019T01_9000000796_06125cztM0_level2.evt modeM0/AS1G06_019T01_9000000796_06125cztM0_level2_quad_clean.evt
Size (bytes)617,310,72093,110,400
Size588.7 MB 88.8 MB
Events in quadrant A8,219,997549,026
Events in quadrant B3,400,794604,588
Events in quadrant C3,217,448594,795
Events in quadrant D3,369,372569,526

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0293383
B0150302
C0146752
D0152192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A720285011.802277%
B7202280.388781%
C720280.111080%
D7202370.513746%

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 7967 7202 566 566 7.10% 7.86%
B 7967 7203 1 1 0.01% 0.01%
C 7967 7203 0 0 0.00% 0.00%
D 7967 7203 17 17 0.21% 0.24%

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 8 15 5132000 31300.05 800 781 163.9
A 12 194 7654 41.92 800 781 163.9
A 0 226 7480 40.86 800 781 163.9
B 3 64 50860 306.37 841 819 163.3
B 15 204 29433 175.18 841 819 163.3
B 4 48 28390 168.8 841 819 163.3
C 1 16 44554 231.29 809 814 189.1
C 9 68 14677 73.3 809 814 189.1
C 13 61 6357 29.31 809 814 189.1
D 13 169 146324 732.95 803 777 198.6
D 11 241 68084 338.95 803 777 198.6
D 2 33 38571 190.32 803 777 198.6

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