ASTROSAT CZTI

Data Quality Report

Orbit 05152

Creation date: 2024-06-27T14:52:01.358265
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_102T01_9000000650_05152cztM0_level2.evt modeM0/AS1G05_102T01_9000000650_05152cztM0_level2_quad_clean.evt
Size (bytes)453,504,96056,603,520
Size432.5 MB 54.0 MB
Events in quadrant A3,111,810320,959
Events in quadrant B3,822,474319,894
Events in quadrant C3,197,770322,989
Events in quadrant D3,173,128308,917

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131363
B0152332
C0135952
D0135032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6318721.139601%
B63181282.025958%
C6318761.202912%
D6318701.107946%

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 7584 6319 3 3 0.04% 0.05%
B 7584 6319 17 17 0.22% 0.27%
C 7584 6319 0 0 0.00% 0.00%
D 7584 6319 7 7 0.09% 0.11%

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 50 24948 147.49 802 784 163.8
A 12 194 7945 43.71 802 784 163.8
A 0 226 7746 42.49 802 784 163.8
B 8 3 363603 2365.01 810 794 153.4
B 4 80 122525 793.52 810 794 153.4
B 15 204 87073 562.42 810 794 153.4
C 1 16 149346 827.31 781 785 179.6
C 13 61 6369 31.1 781 785 179.6
C 3 202 1983 6.67 781 785 179.6
D 8 195 64175 331.51 778 754 191.3
D 10 15 51355 264.49 778 754 191.3
D 2 33 40120 205.77 778 754 191.3

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