ASTROSAT CZTI

Data Quality Report

Orbit 17199

Creation date: 2024-06-27T17:33:29.764950
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/AS1A05_185T04_9000002548_17199cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17199cztM0_level2_quad_clean.evt
Size (bytes)521,366,40084,052,800
Size497.2 MB 80.2 MB
Events in quadrant A3,269,172527,334
Events in quadrant B3,468,732527,152
Events in quadrant C4,852,938497,176
Events in quadrant D3,718,618500,568

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145402
B0150592
C0193422
D0158792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7083320.451786%
B7083821.157702%
C70831842.597769%
D7083450.635324%

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 7648 7084 3 3 0.04% 0.04%
B 7648 7084 22 22 0.29% 0.31%
C 7648 7084 0 0 0.00% 0.00%
D 7648 7084 30 30 0.39% 0.42%

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 12 189 21606 121.79 841 822 170.7
A 4 2 14205 78.42 841 822 170.7
A 0 226 7375 38.4 841 822 170.7
B 7 220 139345 857.33 841 819 161.6
B 12 111 18923 112.04 841 819 161.6
B 11 111 16265 95.59 841 819 161.6
C 3 233 1588235 8388.77 804 809 189.2
C 14 238 123315 647.38 804 809 189.2
C 1 16 5799 26.37 804 809 189.2
D 5 222 399553 2015.13 814 791 197.9
D 13 189 85862 429.9 814 791 197.9
D 10 70 58521 291.74 814 791 197.9

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