ASTROSAT CZTI

Data Quality Report

Orbit 20170321_G06_154T01_9000001100_level2

Creation date: 2017-09-23T11:40:50.058110
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_154T01_9000001100cztM0_level2.evt modeM0/AS1G06_154T01_9000001100cztM0_level2_quad_clean.evt
Size (bytes)3,577,008,960652,199,040
Size3.3 GB 622.0 MB
Events in quadrant A24,324,6814,008,222
Events in quadrant B25,275,7654,111,344
Events in quadrant C24,147,8264,097,682
Events in quadrant D30,997,3083,894,850

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010760
B010760
C010720
D010760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01093550
B01106430
C01088850
D01292430

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A531088431.587331%
B530839311.753857%
C530985000.941655%
D5308419113.599955%

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 59482 53174 10 10 0.02% 0.02%
B 59482 53164 49 49 0.08% 0.09%
C 59482 53177 0 0 0.00% 0.00%
D 59482 53172 1144 1144 1.92% 2.15%

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 15 234 199152 152.62 6256 6107 1264.9
A 0 226 58951 41.78 6256 6107 1264.9
A 12 194 53139 37.18 6256 6107 1264.9
B 5 250 470533 384.57 6299 6138 1207.6
B 5 255 175778 140.48 6299 6138 1207.6
B 12 111 140149 110.98 6299 6138 1207.6
C 1 16 70592 45.28 6149 6169 1422.9
C 13 61 46533 28.37 6149 6169 1422.9
C 8 128 37354 21.92 6149 6169 1422.9
D 11 144 3442254 2373.5 6022 5877 1447.8
D 1 52 3157897 2177.09 6022 5877 1447.8
D 2 14 717235 491.33 6022 5877 1447.8

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