CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20130471123
Observation time: 02/16/2013 47.47439 1123 [UT]

Wind spacecraft

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Asymptotic parameters
Shock front normals
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Wave speed and Mach numbers
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Simple methods
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2013
Fractional day of year 47.474392
Arrival time of shock [seconds of day] 40987.5 ± 50.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 201.294
Y GSE location of spacecraft [Re] 75.755
Z GSE location of spacecraft [Re] -12.938
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0239
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0099
Minimum chisq/dof for RH8,RH9,RH10 7.84, 29.40, 35.69
Event added to database
Tue Oct 8 15:03:34 2013
Event last processed
Tue Oct 8 16:45:22 2013
Method selected
RH08
Propagation delay to Earth [minutes]
31.236 ± 23.056

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -329.4 ± 5.1 -394.8 ± 5.0
Vy GSE [km/s] -22.3 ± 1.4 -20.6 ± 2.4
Vz GSE [km/s] -23.9 ± 2.7 -10.2 ± 5.9
Wi [km/s] 20.0 ± 2.3 31.5 ± 0.5
We [km/s] 633.3 ± 74.2 995.5 ± 14.3
Ni [n/cc] 4.1 ± 0.8 8.7 ± 0.7
Bx GSE [nT] -0.9 ± 0.4 1.1 ± 0.6
By GSE [nT] 4.7 ± 0.2 9.6 ± 0.3
Bz GSE [nT] 1.8 ± 0.2 2.1 ± 0.6
Plasma Beta
0.138 ± 0.130
0.184 ± 0.184
Sound Speed [km/s]
25.86 ± 3.03
40.64 ± 0.58
Alfven Speed [km/s]
55.58 ± 5.67
73.45 ± 0.95

Best values of shock front normal for each method (About, Top)

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.802 ± 0.084 0.298 ± 0.122 0.517 ± 0.465 31.15 ± 8.49 159.65 ± 8.47
VC -0.979 ± 0.014 0.025 ± 0.035 0.200 ± 0.198 11.56 ± 4.00 178.53 ± 2.04
MX1 -0.892 ± 0.046 0.345 ± 0.106 0.292 ± 0.283 16.96 ± 4.30 158.87 ± 6.78
MX2 -0.901 ± 0.043 0.348 ± 0.104 0.258 ± 0.252 14.97 ± 3.32 158.88 ± 6.61
MX3 -0.908 ± 0.041 0.351 ± 0.103 0.228 ± 0.224 13.18 ± 2.65 158.86 ± 6.47
RH08 -0.352 ± 0.023 0.216 ± 0.015 -0.911 ± 0.473 -65.59 ± 1.64 148.41 ± 1.13
RH09 -0.709 ± 0.049 0.355 ± 0.062 -0.609 ± 0.519 -37.51 ± 4.09 153.43 ± 4.73
RH10 -0.851 ± 0.037 0.389 ± 0.064 -0.352 ± 0.337 -20.61 ± 4.02 155.43 ± 4.28
Average -0.800 0.291 -0.047 -4.486 159.009
Median -0.851 0.348 0.228 13.181 158.873
Deviation 0.198 0.119 0.510 33.301 8.767

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 52.7 ± 4.7 365.8 ± 4.1 1.93 ± 0.07
VC 74.0 ± 4.9 446.4 ± 4.3 1.93 ± 0.07
MX1 54.2 ± 4.8 403.3 ± 4.1 1.93 ± 0.07
MX2 54.7 ± 4.8 406.9 ± 4.1 1.93 ± 0.07
MX3 55.2 ± 4.8 409.7 ± 4.1 1.93 ± 0.07
RH08 86.3 ± 2.6 153.3 ± 1.5 1.93 ± 0.07
RH09 76.4 ± 3.4 315.5 ± 2.5 1.93 ± 0.07
RH10 67.3 ± 4.1 381.4 ± 15.5 1.93 ± 0.07
Average 65.1 360.3 1.93
Median 67.3 403.3 1.93
Deviation 12.7 92.0 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 120.4 ± 4.3 14.5 ± 1.3 33.7 ± 3.4 59.7 ± 4.8 8.35 ± 0.75 2.03 ± 0.16
VC 129.1 ± 5.1 6.4 ± 0.5 15.3 ± 1.6 61.1 ± 4.6 20.15 ± 1.86 2.12 ± 0.15
MX1 124.0 ± 4.5 14.0 ± 1.2 32.5 ± 3.3 59.8 ± 4.7 8.93 ± 0.84 2.08 ± 0.16
MX2 124.0 ± 4.6 13.8 ± 1.2 32.1 ± 3.3 59.9 ± 4.7 9.04 ± 0.85 2.08 ± 0.16
MX3 123.8 ± 4.6 13.6 ± 1.2 31.7 ± 3.2 59.9 ± 4.7 9.15 ± 0.86 2.08 ± 0.16
RH8 20.5 ± 2.8 1.5 ± 0.1 3.6 ± 0.4 61.4 ± 4.5 13.81 ± 2.70 0.33 ± 0.03
RH9 75.2 ± 3.7 5.5 ± 0.4 13.1 ± 1.3 61.2 ± 4.6 13.74 ± 1.51 1.23 ± 0.07
RH10 101.3 ± 4.2 9.1 ± 0.8 21.4 ± 2.2 60.8 ± 4.6 11.23 ± 1.14 1.67 ± 0.11
Average 102.3 9.8 22.9 60.5 11.8 1.7
Median 123.8 13.6 31.7 60.8 11.2 2.1
Deviation 37.6 4.9 11.3 0.7 4.0 0.6

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 60.4 ± 7.6 22.3 ± 0.3 44.5 ± 0.6 80.9 ± 1.1 2.70 ± 0.31 0.75 ± 0.09
VC 62.3 ± 6.1 9.9 ± 0.1 20.2 ± 0.3 83.4 ± 1.1 6.32 ± 0.55 0.75 ± 0.06
MX1 61.1 ± 6.9 21.5 ± 0.3 42.9 ± 0.6 81.1 ± 1.1 2.84 ± 0.29 0.75 ± 0.08
MX2 60.9 ± 6.7 21.2 ± 0.3 42.4 ± 0.5 81.2 ± 1.1 2.87 ± 0.29 0.75 ± 0.08
MX3 60.7 ± 6.6 20.9 ± 0.3 41.9 ± 0.5 81.3 ± 1.1 2.90 ± 0.29 0.75 ± 0.07
RH8 9.5 ± 3.4 2.3 ± 0.0 4.7 ± 0.1 83.9 ± 1.1 4.15 ± 1.54 0.11 ± 0.04
RH9 36.5 ± 1.6 8.4 ± 0.1 17.3 ± 0.2 83.5 ± 1.1 4.33 ± 0.20 0.44 ± 0.02
RH10 49.8 ± 3.2 13.9 ± 0.2 28.3 ± 0.4 82.8 ± 1.1 3.58 ± 0.21 0.60 ± 0.03
Average 50.2 15.1 30.3 82.3 3.7 0.6
Median 60.7 20.9 41.9 82.8 3.6 0.7
Deviation 18.7 7.6 15.0 1.2 1.2 0.2

Survey interval (About, Top)
Survey of solar wind interval
Selected data (About, Top)
Key plasma parameters
Survey
Velocity
V

Magnetic Field
B


Simple Methods (About, Top)
Simple methods
Rankine Chi^2 Contour (About, Top)

Chisq


Shock Speed (About, Top)
Shock Speed

Theta Bn (About, Top)
Theta Bn

Mach Numbers (About, Top)

Upstream wave speeds
Upstream Mach numbers
Downsteam wave speeds
Downstream mach numbers
Page updated Fri Jun 13 11:06:02 2014
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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