ASTROSAT CZTI

Data Quality Report

Orbit 20161005_G06_084T01_9000000710_level2

Creation date: 2021-08-24T15:47:33.913068
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_084T01_9000000710cztM0_level2_bc.evt modeM0/AS1G06_084T01_9000000710cztM0_level2_quad_clean.evt
Size (bytes)2,762,544,960998,421,120
Size2.6 GB 952.2 MB
Events in quadrant A15,151,2916,263,649
Events in quadrant B21,076,1346,275,988
Events in quadrant C18,635,8636,267,033
Events in quadrant D23,438,4996,044,494

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01626020
B01799350
C01711490
D01903510

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01330
B01370
C01370
D01360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016080
B016140
C016200
D016000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A786719491.206289%
B7853715181.932847%
C7859415501.972161%
D7839721942.798576%

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 97580 81621 6 6 0.01% 0.01%
B 97580 81558 35 35 0.04% 0.04%
C 97580 81543 743 743 0.76% 0.91%
D 97580 81480 250 250 0.26% 0.31%

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 131389 147.21 3869 3779 866.8
A 0 50 85519 94.3 3869 3779 866.8
A 12 194 33379 34.15 3869 3779 866.8
B 15 204 3362444 4487.68 3896 3778 748.4
B 10 246 1651985 2202.25 3896 3778 748.4
B 4 48 298559 393.87 3896 3778 748.4
C 1 241 2431723 2933.54 3796 3752 827.7
C 1 16 771314 927.39 3796 3752 827.7
C 9 16 503581 603.91 3796 3752 827.7
D 2 63 4101489 4618.66 3819 3664 887.2
D 2 152 1211005 1360.79 3819 3664 887.2
D 11 192 675424 757.14 3819 3664 887.2

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