CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Ace Shock Analysis
Event ID: 20140480509
Observation time: 02/17/2014 48.21498 0509 [UT]

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Wave speed and Mach numbers
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2014
Fractional day of year 48.214977
Arrival time of shock [seconds of day] 18574.0 ± 60.0
Shock type FR
Electron data availability 0
X GSE location of spacecraft [Re] 232.053
Y GSE location of spacecraft [Re] -39.108
Z GSE location of spacecraft [Re] -8.946
Upstream plasma points selected for analysis 0006
Upstream field points selected for analysis 0006
Downstream plasma points selected for analysis 0008
Downstream field points selected for analysis 0008
Minimum chisq/dof for RH8,RH9,RH10 23.71, 29.74, 31.01
Event added to database
Fri Oct 10 15:09:23 2014
Event last processed
Tue Oct 14 16:22:53 2014
Method selected
RH08
Propagation delay to Earth [minutes]
87.410 ± 9.794

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -375.1 ± 1.4 -408.9 ± 1.7
Vy GSE [km/s] -38.2 ± 1.4 -31.2 ± 1.2
Vz GSE [km/s] -3.5 ± 2.0 24.0 ± 1.6
Wi [km/s] 21.1 ± 1.2 18.4 ± 0.9
We [km/s] 667.2 ± 38.5 581.8 ± 28.6
Ni [n/cc] 3.1 ± 0.3 1.8 ± 0.1
Bx GSE [nT] 3.7 ± 0.1 1.9 ± 0.1
By GSE [nT] -3.6 ± 0.5 -3.1 ± 0.1
Bz GSE [nT] 4.9 ± 0.2 2.3 ± 0.2
Plasma Beta
0.057 ± 0.058
0.071 ± 0.075
Sound Speed [km/s]
27.24 ± 1.57
23.75 ± 1.17
Alfven Speed [km/s]
88.90 ± 4.47
69.19 ± 2.73

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.550 ± 0.948 -0.826 ± 0.631 -0.127 ± 0.126 -7.28 ± 9.82 236.36 ± 65.79
VC -0.767 ± 0.029 0.161 ± 0.045 0.621 ± 0.525 38.38 ± 2.60 168.15 ± 3.35
MX1 -0.798 ± 0.047 0.188 ± 0.063 0.573 ± 0.500 34.97 ± 4.57 166.74 ± 4.44
MX2 -0.793 ± 0.051 0.212 ± 0.083 0.571 ± 0.499 34.80 ± 4.76 165.02 ± 5.93
MX3 -0.802 ± 0.045 0.166 ± 0.048 0.575 ± 0.501 35.07 ± 4.47 168.33 ± 3.39
RH08 -0.893 ± 0.004 0.166 ± 0.014 0.419 ± 0.393 24.77 ± 0.39 169.47 ± 0.90
RH09 -0.895 ± 0.030 0.150 ± 0.069 0.419 ± 0.393 24.77 ± 3.77 170.47 ± 4.42
RH10 -0.905 ± 0.029 0.120 ± 0.069 0.408 ± 0.384 24.07 ± 3.96 172.48 ± 4.37
Average -0.800 0.042 0.432 26.193 177.127
Median -0.798 0.166 0.571 34.800 169.471
Deviation 0.115 0.352 0.242 14.676 24.040

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 87.8 ± 3.6 224.8 ± 0.8 0.60 ± 0.09
VC 87.2 ± 1.3 216.9 ± 2.6 0.60 ± 0.09
MX1 83.6 ± 1.3 227.6 ± 2.6 0.60 ± 0.09
MX2 83.0 ± 1.3 225.0 ± 2.6 0.60 ± 0.09
MX3 84.2 ± 1.2 229.8 ± 2.6 0.60 ± 0.09
RH08 75.2 ± 0.9 265.9 ± 2.4 0.60 ± 0.09
RH09 75.5 ± 0.8 267.6 ± 2.4 0.60 ± 0.09
RH10 75.7 ± 0.7 272.8 ± 16.5 0.60 ± 0.09
Average 81.5 241.3 0.60
Median 83.6 229.8 0.60
Deviation 5.3 23.1 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -13.3 ± 1.9 1.0 ± 0.0 3.4 ± 0.2 93.0 ± 3.9 -13.51 ± 2.06 -0.14 ± 0.02
VC -62.5 ± 1.3 1.3 ± 0.1 4.3 ± 0.2 93.0 ± 3.9 -49.63 ± 3.13 -0.67 ± 0.03
MX1 -62.4 ± 1.3 2.9 ± 0.1 9.9 ± 0.5 93.0 ± 3.9 -21.67 ± 1.37 -0.67 ± 0.03
MX2 -62.4 ± 1.3 3.2 ± 0.2 10.9 ± 0.5 93.0 ± 3.9 -19.65 ± 1.24 -0.67 ± 0.03
MX3 -62.5 ± 1.3 2.6 ± 0.1 9.0 ± 0.5 93.0 ± 3.9 -23.87 ± 1.51 -0.67 ± 0.03
RH8 -61.1 ± 1.2 6.7 ± 0.3 22.8 ± 1.1 92.8 ± 4.0 -9.18 ± 0.59 -0.66 ± 0.03
RH9 -61.1 ± 1.2 6.5 ± 0.3 22.2 ± 1.1 92.8 ± 4.0 -9.41 ± 0.60 -0.66 ± 0.03
RH10 -60.7 ± 1.2 6.4 ± 0.3 22.0 ± 1.1 92.8 ± 4.0 -9.45 ± 0.61 -0.66 ± 0.02
Average -55.8 3.8 13.0 92.9 -19.5 -0.6
Median -61.1 3.2 10.9 93.0 -13.5 -0.7
Deviation 17.2 2.4 8.1 0.1 13.5 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -22.7 ± 1.7 0.9 ± 0.0 2.6 ± 0.1 73.2 ± 2.7 -26.63 ± 3.20 -0.31 ± 0.03
VC -106.7 ± 2.0 1.1 ± 0.0 3.4 ± 0.1 73.2 ± 2.7 -98.12 ± 6.50 -1.46 ± 0.07
MX1 -106.4 ± 1.9 2.5 ± 0.1 7.7 ± 0.3 73.1 ± 2.7 -42.84 ± 2.82 -1.46 ± 0.07
MX2 -106.5 ± 1.9 2.7 ± 0.1 8.5 ± 0.3 73.1 ± 2.7 -38.81 ± 2.54 -1.46 ± 0.07
MX3 -106.6 ± 2.0 2.3 ± 0.1 7.0 ± 0.3 73.1 ± 2.7 -47.17 ± 3.12 -1.46 ± 0.07
RH8 -104.0 ± 1.9 5.8 ± 0.3 17.7 ± 0.7 72.9 ± 2.7 -18.09 ± 1.19 -1.43 ± 0.07
RH9 -104.0 ± 1.9 5.6 ± 0.3 17.3 ± 0.7 72.9 ± 2.7 -18.54 ± 1.23 -1.43 ± 0.07
RH10 -103.4 ± 1.9 5.6 ± 0.3 17.1 ± 0.7 73.0 ± 2.7 -18.64 ± 1.24 -1.42 ± 0.07
Average -95.0 3.3 10.1 73.1 -38.6 -1.3
Median -104.0 2.7 8.5 73.1 -26.6 -1.4
Deviation 29.3 2.1 6.3 0.1 26.7 0.4

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 Mon Apr 13 08:55:21 2009
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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