ASTROSAT CZTI

Data Quality Report

Orbit 20151210_P01_180T10_9000000204_level2

Creation date: 2016-09-06T17:56:49.369158
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/AS1P01_180T10_9000000204cztM0_level2_bc.evt modeM0/AS1P01_180T10_9000000204cztM0_level2_quad_clean.evt
Size (bytes)104,929,92057,502,080
Size100.1 MB 54.8 MB
Events in quadrant A647,477382,184
Events in quadrant B715,641376,567
Events in quadrant C830,436361,039
Events in quadrant D725,933362,023

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152761
B0156551
C0153711
D0145531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3665340.927694%
B3665320.873124%
C3665290.791269%
D3665401.091405%

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 3679 3664 0 0 0.00% 0.00%
B 3679 3665 0 0 0.00% 0.00%
C 3679 3664 0 0 0.00% 0.00%
D 3679 3665 0 0 0.00% 0.00%

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 13 9 3489 88.6 166 163 37.5
A 12 243 2349 58.23 166 163 37.5
A 13 193 724 14.94 166 163 37.5
B 5 249 20365 611.57 167 163 33.0
B 8 219 17228 516.61 167 163 33.0
B 4 187 10217 304.36 167 163 33.0
C 15 241 165420 4687.3 158 156 35.3
C 3 79 19059 536.14 158 156 35.3
C 3 143 10377 289.89 158 156 35.3
D 2 216 49470 1344.32 161 157 36.7
D 10 125 34709 941.92 161 157 36.7
D 2 253 6084 161.58 161 157 36.7

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