CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19992072350
Observation time: 07/26/1999 207.99325 2350 [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 1999
Fractional day of year 207.993247
Arrival time of shock [seconds of day] 85816.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 169.605
Y GSE location of spacecraft [Re] 1.332
Z GSE location of spacecraft [Re] 9.720
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0233
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0303
Minimum chisq/dof for RH8,RH9,RH10 1.71, 1.90, 1.95
Event added to database
Mon Feb 14 11:08:25 2005
Event last processed
Mon Mar 30 18:51:58 2009
Method selected
RH08
Propagation delay to Earth [minutes]
37.452 ± 2.657

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -396.0 ± 7.3 -428.6 ± 5.7
Vy GSE [km/s] 16.7 ± 10.8 -14.3 ± 7.4
Vz GSE [km/s] -22.3 ± 9.6 31.7 ± 10.1
Wi [km/s] 42.2 ± 2.8 46.7 ± 2.1
We [km/s] 1333.8 ± 88.2 1477.7 ± 66.7
Ni [n/cc] 2.3 ± 0.2 3.8 ± 0.3
Bx GSE [nT] -3.2 ± 0.6 -2.7 ± 0.9
By GSE [nT] 1.3 ± 0.7 4.9 ± 0.8
Bz GSE [nT] 1.7 ± 0.7 -1.0 ± 1.2
Plasma Beta
0.596 ± 0.785
0.495 ± 0.490
Sound Speed [km/s]
54.45 ± 3.60
60.33 ± 2.72
Alfven Speed [km/s]
57.16 ± 8.44
66.62 ± 2.50

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.823 ± 0.074 0.417 ± 0.111 0.385 ± 0.365 22.66 ± 8.36 153.10 ± 7.49
VC -0.485 ± 0.143 -0.439 ± 0.144 0.756 ± 0.561 49.15 ± 10.51 222.14 ± 12.95
MX1 -0.826 ± 0.070 0.413 ± 0.097 0.384 ± 0.364 22.56 ± 8.73 153.40 ± 6.50
MX2 -0.794 ± 0.089 0.409 ± 0.124 0.450 ± 0.417 26.77 ± 9.21 152.73 ± 8.60
MX3 -0.742 ± 0.152 0.414 ± 0.197 0.527 ± 0.472 31.80 ± 13.76 150.84 ± 14.48
RH08 -0.883 ± 0.016 0.404 ± 0.030 0.240 ± 0.235 13.90 ± 2.10 155.43 ± 1.93
RH09 -0.870 ± 0.027 0.416 ± 0.049 0.263 ± 0.256 15.22 ± 3.43 154.43 ± 3.19
RH10 -0.880 ± 0.027 0.402 ± 0.051 0.251 ± 0.246 14.56 ± 3.49 155.43 ± 3.27
Average -0.788 0.305 0.407 24.577 162.188
Median -0.823 0.413 0.385 22.659 154.429
Deviation 0.131 0.301 0.174 11.773 24.271

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 14.8 ± 7.7 414.0 ± 10.9 1.66 ± 0.16
VC 53.5 ± 14.9 342.3 ± 42.5 1.66 ± 0.16
MX1 14.8 ± 7.7 415.3 ± 10.9 1.66 ± 0.16
MX2 14.7 ± 6.7 408.5 ± 12.8 1.66 ± 0.16
MX3 16.1 ± 6.1 391.7 ± 15.1 1.66 ± 0.16
RH08 18.5 ± 9.1 426.8 ± 8.8 1.66 ± 0.16
RH09 17.9 ± 8.8 423.2 ± 8.8 1.66 ± 0.16
RH10 18.1 ± 8.9 427.7 ± 8.9 1.66 ± 0.16
Average 21.0 406.2 1.66
Median 17.9 415.3 1.66
Deviation 13.2 28.3 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 89.7 ± 7.0 46.3 ± 1.6 55.3 ± 8.2 64.4 ± 4.0 1.94 ± 0.12 1.39 ± 0.05
VC 174.4 ± 11.0 24.3 ± 1.0 34.0 ± 5.0 75.5 ± 3.9 7.20 ± 0.62 2.32 ± 0.21
MX1 90.0 ± 7.0 46.3 ± 1.6 55.3 ± 8.2 64.4 ± 4.0 1.94 ± 0.12 1.40 ± 0.05
MX2 97.4 ± 6.7 46.4 ± 1.6 55.3 ± 8.2 64.4 ± 4.0 2.10 ± 0.12 1.51 ± 0.05
MX3 102.6 ± 6.4 45.7 ± 1.6 54.9 ± 8.1 64.8 ± 3.9 2.24 ± 0.12 1.58 ± 0.06
RH8 75.8 ± 7.6 44.6 ± 1.6 54.2 ± 8.0 65.6 ± 3.9 1.70 ± 0.13 1.15 ± 0.05
RH9 77.5 ± 7.5 44.9 ± 1.6 54.4 ± 8.0 65.4 ± 3.9 1.72 ± 0.13 1.18 ± 0.05
RH10 78.0 ± 7.6 44.8 ± 1.6 54.3 ± 8.0 65.5 ± 3.9 1.74 ± 0.13 1.19 ± 0.05
Average 98.2 42.9 52.2 66.2 2.6 1.5
Median 90.0 45.7 54.9 65.4 1.9 1.4
Deviation 32.3 7.6 7.4 3.8 1.9 0.4

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 54.9 ± 3.4 54.0 ± 1.8 64.4 ± 2.4 71.9 ± 2.0 1.02 ± 0.07 0.76 ± 0.04
VC 104.1 ± 3.6 27.9 ± 0.8 39.6 ± 1.5 85.5 ± 2.4 3.73 ± 0.15 1.22 ± 0.04
MX1 55.1 ± 3.4 54.0 ± 1.8 64.4 ± 2.4 71.9 ± 2.0 1.02 ± 0.07 0.77 ± 0.04
MX2 59.8 ± 4.0 54.1 ± 1.8 64.4 ± 2.4 71.8 ± 2.0 1.11 ± 0.08 0.83 ± 0.05
MX3 62.7 ± 4.9 53.3 ± 1.8 64.0 ± 2.4 72.4 ± 2.0 1.18 ± 0.10 0.87 ± 0.06
RH8 46.5 ± 2.4 51.9 ± 1.7 63.2 ± 2.4 73.4 ± 2.1 0.90 ± 0.05 0.63 ± 0.03
RH9 47.8 ± 2.5 52.2 ± 1.7 63.4 ± 2.4 73.2 ± 2.0 0.92 ± 0.05 0.65 ± 0.03
RH10 48.1 ± 2.4 52.1 ± 1.7 63.3 ± 2.4 73.3 ± 2.0 0.92 ± 0.05 0.66 ± 0.03
Average 59.9 50.0 60.8 74.2 1.3 0.8
Median 55.1 53.3 64.0 73.2 1.0 0.8
Deviation 18.8 8.9 8.6 4.6 1.0 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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