CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Ace Shock Analysis
Event ID: 20140581607
Observation time: 02/27/2014 58.67199 1607 [UT]

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Asymptotic parameters
Shock front normals
Key parameters
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 2014
Fractional day of year 58.671991
Arrival time of shock [seconds of day] 58060.0 ± 80.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 228.977
Y GSE location of spacecraft [Re] -39.744
Z GSE location of spacecraft [Re] -15.955
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0009
Downstream plasma points selected for analysis 0004
Downstream field points selected for analysis 0004
Minimum chisq/dof for RH8,RH9,RH10 12.88, 42.02, 51.29
Event added to database
Fri Oct 10 15:12:23 2014
Event last processed
Tue Oct 14 16:27:36 2014
Method selected
RH08
Propagation delay to Earth [minutes]
41.836 ± 0.375

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -350.3 ± 1.8 -420.3 ± 2.5
Vy GSE [km/s] -36.5 ± 0.9 -76.6 ± 3.4
Vz GSE [km/s] 10.9 ± 0.6 3.0 ± 7.4
Wi [km/s] 21.0 ± 0.7 43.0 ± 1.2
We [km/s] 662.8 ± 21.3 1360.7 ± 39.1
Ni [n/cc] 15.5 ± 0.8 35.0 ± 1.3
Bx GSE [nT] 1.3 ± 0.6 3.6 ± 0.8
By GSE [nT] -3.0 ± 0.5 -10.6 ± 1.0
Bz GSE [nT] -3.8 ± 0.4 -4.1 ± 2.0
Plasma Beta
0.555 ± 0.547
0.968 ± 0.970
Sound Speed [km/s]
27.06 ± 0.87
55.55 ± 1.60
Alfven Speed [km/s]
28.21 ± 1.56
44.58 ± 4.78

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.925 ± 0.483 0.001 ± 0.788 0.380 ± 0.361 22.36 ± 72.81 179.94 ± 48.83
VC -0.864 ± 0.019 -0.495 ± 0.032 -0.096 ± 0.096 -5.52 ± 4.35 209.81 ± 2.11
MX1 -0.945 ± 0.052 -0.256 ± 0.141 0.205 ± 0.202 11.84 ± 10.27 195.14 ± 8.55
MX2 -0.957 ± 0.030 -0.289 ± 0.098 -0.024 ± 0.024 -1.38 ± 3.00 196.78 ± 5.87
MX3 -0.951 ± 0.029 -0.291 ± 0.092 -0.102 ± 0.102 -5.88 ± 5.09 197.00 ± 5.54
RH08 -0.917 ± 0.006 -0.400 ± 0.013 -0.006 ± 0.006 -0.32 ± 0.81 203.57 ± 0.80
RH09 -0.630 ± 0.055 -0.315 ± 0.067 0.709 ± 0.556 45.19 ± 4.03 206.57 ± 5.72
RH10 -0.712 ± 0.049 0.069 ± 0.071 -0.698 ± 0.553 -44.29 ± 4.03 174.48 ± 5.69
Average -0.863 -0.247 0.046 2.751 195.413
Median -0.917 -0.289 -0.006 -0.320 196.997
Deviation 0.124 0.191 0.411 25.777 12.422

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 58.6 ± 4.8 436.6 ± 1.6 2.25 ± 0.12
VC 81.7 ± 4.6 466.1 ± 1.4 2.25 ± 0.12
MX1 75.9 ± 4.5 474.4 ± 1.5 2.25 ± 0.12
MX2 86.9 ± 5.2 488.2 ± 1.4 2.25 ± 0.12
MX3 89.5 ± 5.5 485.6 ± 1.3 2.25 ± 0.12
RH08 89.6 ± 4.7 480.5 ± 1.4 2.25 ± 0.12
RH09 59.2 ± 4.5 331.3 ± 1.8 2.25 ± 0.12
RH10 71.8 ± 8.7 333.2 ± 7.3 2.25 ± 0.12
Average 76.7 437.0 2.25
Median 81.7 474.4 2.25
Deviation 12.6 66.6 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 108.6 ± 1.6 10.6 ± 0.4 14.7 ± 0.8 37.6 ± 1.5 10.28 ± 0.26 2.89 ± 0.08
VC 146.6 ± 1.3 2.8 ± 0.1 4.1 ± 0.2 39.0 ± 1.6 51.78 ± 1.54 3.76 ± 0.12
MX1 131.9 ± 1.5 4.8 ± 0.2 6.9 ± 0.4 38.8 ± 1.5 27.56 ± 0.76 3.40 ± 0.10
MX2 142.7 ± 1.5 1.1 ± 0.0 1.5 ± 0.1 39.1 ± 1.6 135.93 ± 3.86 3.65 ± 0.11
MX3 142.9 ± 1.5 0.2 ± 0.0 0.2 ± 0.0 39.1 ± 1.6 894.38 ± 25.55 3.66 ± 0.11
RH8 144.8 ± 1.4 0.1 ± 0.0 0.2 ± 0.0 39.1 ± 1.6 1011.76 ± 29.28 3.71 ± 0.11
RH9 91.3 ± 1.0 10.4 ± 0.4 14.4 ± 0.8 37.7 ± 1.5 8.83 ± 0.24 2.42 ± 0.07
RH10 93.7 ± 1.5 6.2 ± 0.2 8.8 ± 0.5 38.6 ± 1.5 15.23 ± 0.44 2.43 ± 0.07
Average 125.3 4.5 6.4 38.6 269.5 3.2
Median 142.7 4.8 6.9 39.0 51.8 3.7
Deviation 23.7 4.2 5.9 0.6 425.1 0.6

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 46.9 ± 4.1 18.7 ± 1.1 23.2 ± 2.5 68.9 ± 1.5 2.52 ± 0.35 0.68 ± 0.07
VC 65.5 ± 3.2 5.0 ± 0.3 6.5 ± 0.7 71.2 ± 1.7 13.07 ± 0.72 0.92 ± 0.04
MX1 57.2 ± 3.0 8.5 ± 0.5 10.9 ± 1.2 70.8 ± 1.7 6.76 ± 0.63 0.81 ± 0.05
MX2 63.9 ± 2.8 1.9 ± 0.1 2.4 ± 0.3 71.3 ± 1.7 34.40 ± 2.25 0.90 ± 0.04
MX3 63.8 ± 2.9 0.3 ± 0.0 0.4 ± 0.0 71.3 ± 1.7 225.55 ± 13.25 0.89 ± 0.04
RH8 64.6 ± 2.9 0.3 ± 0.0 0.3 ± 0.0 71.3 ± 1.7 254.90 ± 16.31 0.91 ± 0.04
RH9 40.2 ± 5.2 18.3 ± 1.1 22.8 ± 2.4 69.0 ± 1.5 2.21 ± 0.41 0.58 ± 0.09
RH10 41.1 ± 4.7 10.9 ± 0.6 13.9 ± 1.5 70.5 ± 1.7 3.76 ± 0.26 0.58 ± 0.06
Average 55.4 8.0 10.0 70.5 67.9 0.8
Median 63.8 8.5 10.9 71.2 13.1 0.9
Deviation 11.0 7.5 9.4 1.1 107.2 0.1

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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