CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19992582008
Observation time: 09/15/1999 258.83936 2008 [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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Selected
Simple methods
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 1999
Fractional day of year 258.839358
Arrival time of shock [seconds of day] 72520.5 ± 24.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 69.745
Y GSE location of spacecraft [Re] -34.766
Z GSE location of spacecraft [Re] -2.780
Upstream plasma points selected for analysis 0006
Upstream field points selected for analysis 0308
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0262
Minimum chisq/dof for RH8,RH9,RH10 19.23, 40.51, 42.05
Event added to database
Mon Feb 14 11:08:47 2005
Event last processed
Mon Mar 30 19:02:27 2009
Method selected
RH08
Propagation delay to Earth [minutes]
10.068 ± 1.660

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -545.7 ± 2.2 -605.9 ± 2.6
Vy GSE [km/s] -17.6 ± 3.1 -43.5 ± 3.5
Vz GSE [km/s] -108.2 ± 1.9 -66.9 ± 3.1
Wi [km/s] 45.7 ± 2.2 52.4 ± 2.2
We [km/s] 1444.1 ± 69.2 1656.7 ± 69.0
Ni [n/cc] 2.7 ± 0.1 5.3 ± 0.2
Bx GSE [nT] -0.9 ± 0.1 0.7 ± 0.3
By GSE [nT] 1.9 ± 0.2 4.6 ± 0.6
Bz GSE [nT] 2.8 ± 0.2 6.4 ± 0.4
Plasma Beta
0.977 ± 1.007
0.481 ± 0.483
Sound Speed [km/s]
58.96 ± 2.82
67.64 ± 2.82
Alfven Speed [km/s]
46.32 ± 1.24
75.69 ± 2.30

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.933 ± 0.069 0.179 ± 0.234 0.312 ± 0.302 18.19 ± 9.91 169.15 ± 14.34
VC -0.777 ± 0.031 -0.335 ± 0.051 0.532 ± 0.475 32.17 ± 2.56 203.31 ± 3.71
MX1 -0.773 ± 0.047 -0.300 ± 0.074 0.559 ± 0.492 33.98 ± 4.08 201.24 ± 5.42
MX2 -0.770 ± 0.046 -0.303 ± 0.062 0.561 ± 0.493 34.14 ± 4.39 201.45 ± 4.46
MX3 -0.769 ± 0.047 -0.304 ± 0.056 0.563 ± 0.494 34.25 ± 4.59 201.61 ± 3.99
RH08 -0.816 ± 0.005 -0.167 ± 0.012 0.553 ± 0.488 33.58 ± 0.45 191.53 ± 0.82
RH09 -0.949 ± 0.022 0.159 ± 0.069 0.274 ± 0.267 15.89 ± 4.02 170.47 ± 4.19
RH10 -0.952 ± 0.022 0.177 ± 0.070 0.251 ± 0.246 14.56 ± 3.99 169.47 ± 4.20
Average -0.842 -0.112 0.451 27.094 188.530
Median -0.777 -0.167 0.553 33.578 201.242
Deviation 0.086 0.240 0.143 9.087 16.001

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 54.3 ± 2.0 605.4 ± 11.5 1.98 ± 0.06
VC 64.1 ± 3.2 531.2 ± 12.4 1.98 ± 0.06
MX1 61.6 ± 3.2 525.1 ± 12.5 1.98 ± 0.06
MX2 61.6 ± 3.2 523.4 ± 12.5 1.98 ± 0.06
MX3 61.7 ± 3.2 522.3 ± 12.5 1.98 ± 0.06
RH08 56.3 ± 2.9 544.4 ± 12.6 1.98 ± 0.06
RH09 56.9 ± 2.0 618.0 ± 11.3 1.98 ± 0.06
RH10 57.3 ± 2.0 619.3 ± 11.2 1.98 ± 0.06
Average 59.2 561.1 1.98
Median 61.6 544.4 1.98
Deviation 3.5 44.7 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 133.1 ± 1.8 22.2 ± 0.4 27.1 ± 0.7 71.6 ± 2.1 5.98 ± 0.18 1.86 ± 0.07
VC 158.7 ± 2.6 16.3 ± 0.3 20.2 ± 0.5 73.2 ± 2.1 9.77 ± 0.30 2.17 ± 0.08
MX1 158.5 ± 2.6 17.8 ± 0.4 22.0 ± 0.6 72.9 ± 2.1 8.91 ± 0.27 2.18 ± 0.08
MX2 158.5 ± 2.6 17.8 ± 0.4 22.0 ± 0.6 72.9 ± 2.1 8.91 ± 0.27 2.18 ± 0.08
MX3 158.5 ± 2.6 17.8 ± 0.4 22.0 ± 0.6 72.9 ± 2.1 8.92 ± 0.27 2.18 ± 0.08
RH8 155.9 ± 2.3 21.0 ± 0.4 25.7 ± 0.7 72.0 ± 2.1 7.41 ± 0.23 2.17 ± 0.08
RH9 132.7 ± 1.8 20.7 ± 0.4 25.3 ± 0.7 72.1 ± 2.1 6.42 ± 0.19 1.84 ± 0.07
RH10 130.3 ± 1.8 20.4 ± 0.4 25.0 ± 0.7 72.2 ± 2.1 6.39 ± 0.19 1.81 ± 0.07
Average 148.3 19.2 23.7 72.5 7.8 2.0
Median 158.5 20.4 25.0 72.9 8.9 2.2
Deviation 13.5 2.1 2.4 0.6 1.5 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 68.7 ± 2.8 30.9 ± 0.8 44.2 ± 1.3 96.7 ± 2.5 2.23 ± 0.11 0.71 ± 0.04
VC 81.3 ± 2.6 22.5 ± 0.6 33.0 ± 1.0 99.0 ± 2.6 3.61 ± 0.16 0.82 ± 0.04
MX1 81.1 ± 2.7 24.7 ± 0.7 35.9 ± 1.1 98.5 ± 2.6 3.29 ± 0.15 0.82 ± 0.04
MX2 81.1 ± 2.7 24.7 ± 0.7 35.9 ± 1.1 98.5 ± 2.6 3.29 ± 0.15 0.82 ± 0.04
MX3 81.1 ± 2.7 24.7 ± 0.7 35.9 ± 1.1 98.5 ± 2.6 3.29 ± 0.15 0.82 ± 0.04
RH8 79.6 ± 2.7 29.2 ± 0.8 42.0 ± 1.3 97.2 ± 2.5 2.73 ± 0.12 0.82 ± 0.04
RH9 68.5 ± 2.8 28.7 ± 0.8 41.4 ± 1.3 97.4 ± 2.5 2.39 ± 0.12 0.70 ± 0.04
RH10 67.2 ± 2.8 28.3 ± 0.8 40.8 ± 1.2 97.5 ± 2.5 2.38 ± 0.12 0.69 ± 0.04
Average 76.1 26.7 38.7 97.9 2.9 0.8
Median 81.1 28.3 40.8 98.5 3.3 0.8
Deviation 6.6 2.9 3.9 0.8 0.5 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 Fri Jun 13 11:06:02 2014
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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