ASTROSAT CZTI

Data Quality Report

Orbit 20161226_G06_168T10_9000000932_level2

Creation date: 2017-09-22T16:45:13.304879
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_168T10_9000000932cztM0_level2.evt modeM0/AS1G06_168T10_9000000932cztM0_level2_quad_clean.evt
Size (bytes)3,323,715,840554,019,840
Size3.1 GB 528.4 MB
Events in quadrant A22,790,8323,456,405
Events in quadrant B22,074,3183,536,298
Events in quadrant C20,476,8063,482,087
Events in quadrant D32,271,1513,206,693

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0992050
B0963510
C0929970
D01251620

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09180
B09180
C09180
D09180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0570
B0570
C0570
D0570

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4513610102.237682%
B451367551.672722%
C451363170.702322%
D4513636508.086671%

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 50906 45144 296 296 0.58% 0.66%
B 50906 45144 48 48 0.09% 0.11%
C 50906 45144 0 0 0.00% 0.00%
D 50906 45144 2768 2768 5.44% 6.13%

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 4 2 1192427 1098.26 5321 5209 1081.0
A 13 248 341126 310.75 5321 5209 1081.0
A 14 111 291190 264.55 5321 5209 1081.0
B 0 214 285623 270.94 5393 5263 1034.8
B 4 81 281567 267.02 5393 5263 1034.8
B 4 48 235929 222.91 5393 5263 1034.8
C 9 247 111331 88.02 5198 5226 1205.5
C 9 16 40675 29.41 5198 5226 1205.5
C 13 61 40647 29.38 5198 5226 1205.5
D 2 33 7433677 6044.17 5005 4851 1229.1
D 8 195 2644537 2147.68 5005 4851 1229.1
D 14 34 1583114 1284.09 5005 4851 1229.1

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