CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20112171840
Observation time: 08/05/2011 217.77828 1840 [UT]

Wind spacecraft

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


General Information (About, Top)

Year 2011
Fractional day of year 217.778281
Arrival time of shock [seconds of day] 67243.5 ± 20.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 202.187
Y GSE location of spacecraft [Re] -24.297
Z GSE location of spacecraft [Re] -18.644
Upstream plasma points selected for analysis 0003
Upstream field points selected for analysis 0086
Downstream plasma points selected for analysis 0001
Downstream field points selected for analysis 0074
Minimum chisq/dof for RH8,RH9,RH10 -249.22, -208.26, -227.16
Event added to database
Fri Sep 20 13:32:24 2013
Event last processed
Tue Sep 24 10:29:05 2013
Method selected
RH08
Propagation delay to Earth [minutes]
24.983 ± 4.544

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -511.7 ± 2.1 -574.6 ± -574.6
Vy GSE [km/s] 29.3 ± 5.0 25.4 ± 25.4
Vz GSE [km/s] -61.0 ± 2.3 -123.3 ± -123.3
Wi [km/s] 50.7 ± 4.3 60.5 ± 60.5
We [km/s] 1602.8 ± 135.1 1912.1 ± 1912.1
Ni [n/cc] 21.2 ± 0.1 31.6 ± 31.6
Bx GSE [nT] 8.8 ± 1.9 13.5 ± 13.5
By GSE [nT] 10.7 ± 3.2 24.1 ± 24.1
Bz GSE [nT] -5.6 ± 0.5 -5.6 ± -5.6
Plasma Beta
0.577 ± 0.603
0.307 ± 0.307
Sound Speed [km/s]
65.44 ± 5.52
78.06 ± 78.06
Alfven Speed [km/s]
71.45 ± 16.41
109.15 ± 109.15

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.605 ± 0.112 0.203 ± 0.084 0.770 ± 0.561 50.32 ± 8.57 161.43 ± 7.14
VC -0.710 ± 0.025 -0.043 ± 0.054 -0.703 ± 0.554 -44.63 ± 2.05 183.50 ± 4.39
MX1 -0.522 ± 0.048 0.180 ± 0.024 -0.834 ± 0.544 -56.51 ± 3.49 160.98 ± 1.90
MX2 -0.590 ± 0.022 0.204 ± 0.023 -0.781 ± 0.560 -51.36 ± 1.57 160.95 ± 2.10
MX3 -0.645 ± 0.030 0.222 ± 0.028 -0.731 ± 0.559 -46.97 ± 2.39 161.02 ± 2.36
RH08 -0.425 ± 0.064 -0.898 ± 0.031 0.117 ± 0.117 6.74 ± 4.01 244.68 ± 4.07
RH09 -0.425 ± 0.031 -0.898 ± 0.015 0.117 ± 0.117 6.74 ± 2.00 244.68 ± 2.00
RH10 -0.081 ± 0.069 -0.876 ± 0.034 -0.475 ± 0.435 -28.35 ± 3.99 264.74 ± 4.54
Average -0.500 -0.238 -0.315 -20.504 197.748
Median -0.522 0.180 -0.475 -28.350 183.497
Deviation 0.197 0.547 0.584 37.971 45.464

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 59.4 ± 5.5 236.9 ± 3.1 1.49 ± 0.01
VC 79.6 ± 1.9 672.7 ± 2.1 1.49 ± 0.01
MX1 82.0 ± 1.9 577.2 ± 0.6 1.49 ± 0.01
MX2 84.5 ± 1.9 612.7 ± 0.3 1.49 ± 0.01
MX3 86.8 ± 1.9 639.1 ± 0.1 1.49 ± 0.01
RH08 21.2 ± 5.5 250.8 ± 8.2 1.49 ± 0.01
RH09 21.2 ± 5.5 250.8 ± 8.2 1.49 ± 0.01
RH10 60.9 ± 5.3 160.7 ± 8.8 1.49 ± 0.01
Average 62.0 425.1 1.49
Median 79.6 577.2 1.49
Deviation 27.2 217.6 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -31.9 ± 2.3 24.9 ± 1.2 36.4 ± 8.4 94.4 ± 9.3 -1.28 ± 0.11 -0.34 ± 0.04
VC 267.6 ± 1.0 8.5 ± 0.4 12.9 ± 3.0 97.2 ± 9.3 31.44 ± 1.71 2.77 ± 0.26
MX1 254.2 ± 1.5 6.6 ± 0.3 9.9 ± 2.3 97.4 ± 9.3 38.69 ± 1.94 2.63 ± 0.24
MX2 257.0 ± 1.3 4.5 ± 0.2 6.8 ± 1.6 97.5 ± 9.3 57.13 ± 2.87 2.65 ± 0.24
MX3 257.9 ± 1.2 2.7 ± 0.1 4.0 ± 0.9 97.6 ± 9.3 96.76 ± 4.86 2.66 ± 0.24
RH8 67.0 ± 5.5 52.1 ± 1.5 66.6 ± 15.3 82.5 ± 10.1 1.29 ± 0.14 0.82 ± 0.15
RH9 67.0 ± 5.5 52.1 ± 1.5 66.6 ± 15.3 82.5 ± 10.1 1.29 ± 0.14 0.82 ± 0.15
RH10 116.1 ± 4.0 23.6 ± 1.2 34.7 ± 8.0 94.7 ± 9.3 4.93 ± 0.40 1.24 ± 0.15
Average 156.9 21.9 29.7 93.0 28.8 1.7
Median 254.2 23.6 34.7 97.2 31.4 2.6
Deviation 116.7 20.4 25.8 6.6 34.9 1.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -21.1 ± -21.1 33.4 ± 33.4 55.6 ± 55.6 130.0 ± 130.0 -0.63 ± -0.63 -0.16 ± -0.16
VC 179.0 ± 179.0 11.5 ± 11.5 19.7 ± 19.7 133.7 ± 133.7 15.59 ± 15.59 1.34 ± 1.34
MX1 170.1 ± 170.1 8.9 ± 8.9 15.2 ± 15.2 133.9 ± 133.9 19.20 ± 19.20 1.27 ± 1.27
MX2 172.0 ± 172.0 6.1 ± 6.1 10.4 ± 10.4 134.1 ± 134.1 28.36 ± 28.36 1.28 ± 1.28
MX3 172.6 ± 172.6 3.6 ± 3.6 6.2 ± 6.2 134.1 ± 134.1 48.03 ± 48.03 1.29 ± 1.29
RH8 44.0 ± 44.0 69.0 ± 69.0 101.7 ± 101.7 115.1 ± 115.1 0.64 ± 0.64 0.38 ± 0.38
RH9 44.0 ± 44.0 69.0 ± 69.0 101.7 ± 101.7 115.1 ± 115.1 0.64 ± 0.64 0.38 ± 0.38
RH10 78.0 ± 78.0 31.8 ± 31.8 53.0 ± 53.0 130.4 ± 130.4 2.46 ± 2.46 0.60 ± 0.60
Average 104.8 29.1 45.4 128.3 14.3 0.8
Median 170.1 31.8 53.0 133.7 15.6 1.3
Deviation 78.2 27.0 39.4 8.3 17.3 0.6

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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