ASTROSAT CZTI

Data Quality Report

Orbit 20161007_G06_129T01_9000000718_level2

Creation date: 2016-10-21T07:23:10.313443
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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_129T01_9000000718cztM0_level2_bc.evt modeM0/AS1G06_129T01_9000000718cztM0_level2_quad_clean.evt
Size (bytes)2,295,239,040734,238,720
Size2.1 GB 700.2 MB
Events in quadrant A12,556,7584,574,960
Events in quadrant B18,780,6344,557,851
Events in quadrant C18,790,4994,396,138
Events in quadrant D15,032,1644,331,326

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0950
B0960
C0960
D0960

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01318650
B01539420
C01547310
D01377600

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013040
B013040
C013040
D013040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A638257511.176655%
B6381317702.773729%
C6383225163.941597%
D638137881.234858%

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 73527 63853 14 14 0.02% 0.02%
B 73527 63853 265 265 0.36% 0.42%
C 73527 63859 530 530 0.72% 0.83%
D 73527 63855 60 60 0.08% 0.09%

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 181696 259.81 3112 3037 687.6
A 13 14 161101 229.86 3112 3037 687.6
A 7 16 62445 86.39 3112 3037 687.6
B 15 204 2541774 4215.65 3123 3022 602.2
B 10 16 1214194 2011.18 3123 3022 602.2
B 5 172 1031495 1707.8 3123 3022 602.2
C 9 16 4811119 7282.27 2993 2944 660.3
C 1 241 1793048 2711.22 2993 2944 660.3
C 1 16 378098 568.19 2993 2944 660.3
D 8 195 1115477 1561.66 3061 2933 712.4
D 2 152 959124 1342.19 3061 2933 712.4
D 2 136 471507 657.73 3061 2933 712.4

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