CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19992580743
Observation time: 09/15/1999 258.32207 0743 [UT]

Wind spacecraft

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Asymptotic parameters
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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 258.322066
Arrival time of shock [seconds of day] 27826.5 ± 6.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 66.168
Y GSE location of spacecraft [Re] -36.067
Z GSE location of spacecraft [Re] -3.040
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0283
Downstream plasma points selected for analysis 0006
Downstream field points selected for analysis 0208
Minimum chisq/dof for RH8,RH9,RH10 8.23, 9.41, 9.77
Event added to database
Mon Feb 14 11:08:44 2005
Event last processed
Mon Mar 30 19:00:42 2009
Method selected
RH08
Propagation delay to Earth [minutes]
11.166 ± 0.396

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -516.8 ± 4.5 -605.5 ± 5.9
Vy GSE [km/s] -41.6 ± 10.7 -59.4 ± 4.3
Vz GSE [km/s] -8.6 ± 16.9 45.5 ± 14.6
Wi [km/s] 65.7 ± 2.2 81.2 ± 3.3
We [km/s] 2079.0 ± 68.7 2567.2 ± 104.9
Ni [n/cc] 2.6 ± 0.1 5.1 ± 0.4
Bx GSE [nT] -1.2 ± 0.6 -0.9 ± 0.9
By GSE [nT] 5.3 ± 0.8 10.8 ± 0.6
Bz GSE [nT] 1.7 ± 1.7 -2.5 ± 1.8
Plasma Beta
0.675 ± 0.727
0.557 ± 0.576
Sound Speed [km/s]
84.87 ± 2.80
104.81 ± 4.28
Alfven Speed [km/s]
80.38 ± 4.55
108.93 ± 5.20

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.569 ± 0.501 0.605 ± 0.482 0.557 ± 0.491 33.87 ± 32.13 133.22 ± 42.85
VC -0.852 ± 0.076 -0.166 ± 0.087 0.497 ± 0.451 29.78 ± 8.71 191.05 ± 5.80
MX1 -0.760 ± 0.269 0.451 ± 0.428 0.468 ± 0.430 27.90 ± 13.45 149.28 ± 31.98
MX2 -0.880 ± 0.085 0.319 ± 0.217 0.353 ± 0.337 20.64 ± 5.41 160.06 ± 14.13
MX3 -0.950 ± 0.043 0.206 ± 0.160 0.234 ± 0.229 13.52 ± 6.26 167.77 ± 9.62
RH08 -0.981 ± 0.005 0.147 ± 0.022 -0.128 ± 0.128 -7.38 ± 1.97 171.48 ± 1.28
RH09 -0.983 ± 0.013 0.165 ± 0.067 -0.084 ± 0.084 -4.81 ± 4.02 170.47 ± 3.90
RH10 -0.983 ± 0.013 0.165 ± 0.068 -0.084 ± 0.084 -4.81 ± 4.02 170.47 ± 3.99
Average -0.870 0.237 0.227 13.589 164.225
Median -0.880 0.206 0.353 20.644 170.474
Deviation 0.145 0.230 0.287 17.090 17.173

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 34.8 ± 12.1 409.9 ± 28.1 1.95 ± 0.23
VC 80.7 ± 13.1 661.8 ± 37.3 1.95 ± 0.23
MX1 46.4 ± 10.4 548.2 ± 29.4 1.95 ± 0.23
MX2 56.0 ± 8.9 630.7 ± 28.3 1.95 ± 0.23
MX3 64.2 ± 7.6 676.0 ± 26.2 1.95 ± 0.23
RH08 73.6 ± 4.3 665.5 ± 16.3 1.95 ± 0.23
RH09 71.8 ± 4.5 670.6 ± 17.3 1.95 ± 0.23
RH10 71.8 ± 4.5 670.6 ± 17.3 1.95 ± 0.23
Average 62.4 616.7 1.95
Median 71.8 665.5 1.95
Deviation 15.6 93.7 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 146.0 ± 5.7 53.9 ± 1.9 66.0 ± 3.7 103.8 ± 3.4 2.71 ± 0.11 1.41 ± 0.05
VC 219.0 ± 13.2 9.4 ± 0.3 12.9 ± 0.7 116.6 ± 3.9 23.26 ± 1.41 1.88 ± 0.11
MX1 178.4 ± 6.3 43.3 ± 1.5 55.5 ± 3.1 108.6 ± 3.6 4.12 ± 0.17 1.64 ± 0.06
MX2 192.4 ± 6.1 34.0 ± 1.2 44.9 ± 2.5 111.9 ± 3.7 5.66 ± 0.23 1.72 ± 0.07
MX3 195.5 ± 5.7 26.0 ± 0.9 35.0 ± 2.0 114.0 ± 3.8 7.52 ± 0.30 1.72 ± 0.07
RH8 163.7 ± 2.7 16.7 ± 0.6 22.7 ± 1.3 115.7 ± 3.8 9.84 ± 0.43 1.42 ± 0.06
RH9 168.9 ± 2.7 18.4 ± 0.6 25.1 ± 1.4 115.5 ± 3.8 9.18 ± 0.39 1.46 ± 0.06
RH10 168.9 ± 2.7 18.4 ± 0.6 25.1 ± 1.4 115.5 ± 3.8 9.18 ± 0.39 1.46 ± 0.06
Average 179.1 27.5 35.9 112.7 8.9 1.6
Median 178.4 26.0 35.0 115.5 9.2 1.6
Deviation 22.6 15.1 18.1 4.4 6.3 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 76.1 ± 7.9 69.9 ± 2.7 89.4 ± 4.3 134.1 ± 5.2 1.09 ± 0.12 0.57 ± 0.07
VC 113.5 ± 9.1 12.2 ± 0.5 17.6 ± 0.8 150.7 ± 5.8 9.32 ± 0.87 0.75 ± 0.07
MX1 93.7 ± 7.5 56.1 ± 2.1 75.2 ± 3.6 140.4 ± 5.4 1.67 ± 0.14 0.67 ± 0.06
MX2 100.9 ± 6.9 44.1 ± 1.7 60.8 ± 2.9 144.6 ± 5.6 2.29 ± 0.16 0.70 ± 0.05
MX3 102.2 ± 6.4 33.7 ± 1.3 47.4 ± 2.3 147.4 ± 5.7 3.03 ± 0.18 0.69 ± 0.04
RH8 86.2 ± 6.3 21.6 ± 0.8 30.8 ± 1.5 149.6 ± 5.8 3.99 ± 0.19 0.58 ± 0.03
RH9 89.1 ± 6.1 23.9 ± 0.9 34.0 ± 1.6 149.3 ± 5.8 3.73 ± 0.17 0.60 ± 0.03
RH10 89.1 ± 6.1 23.9 ± 0.9 34.0 ± 1.6 149.3 ± 5.8 3.73 ± 0.17 0.60 ± 0.03
Average 93.9 35.7 48.7 145.7 3.6 0.6
Median 93.7 33.7 47.4 149.3 3.7 0.7
Deviation 11.5 19.6 24.6 5.8 2.5 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 Mon Apr 13 08:55:21 2009
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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