Interplanetary Shock Analysis Pages
Database: Wind Shock Analysis
Event ID: 20042420909
08/29/2004 242.38179 0909 [UT]
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MIT Space
Plasma Group Interplanetary Shock Analysis Pages Database: Wind Shock Analysis Event ID: 20042420909 08/29/2004 242.38179 0909 [UT] |
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General information Asymptotic parameters Shock front normals Key parameters Wave speed and Mach numbers |
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methods Rankine Individual equations |
Shock
speed Theta Bn Mach numbers |
General Information (About, Top)
| Year | 2004 |
| Fractional day of year | 242.381786 |
| Arrival time of shock [seconds of day] | 32986.3 ± 60.0 |
| Shock type | FF |
| Electron data availability | 0 | X GSE location of spacecraft [Re] | 235.114 |
| Y GSE location of spacecraft [Re] | -93.804 |
| Z GSE location of spacecraft [Re] | 4.504 |
| Upstream plasma points selected for analysis | 0008 |
| Upstream field points selected for analysis | 0008 |
| Downstream plasma points selected for analysis | 0008 |
| Downstream field points selected for analysis | 0008 |
| Minimum chisq/dof for RH8,RH9,RH10 | 10.80, 14.71, 15.09 |
| Event added to database |
Sun Mar 13 01:31:31 2005 |
| Event last processed |
Sun Mar 13 11:53:32 2005 |
| Method selected |
RH08 |
| Propagation delay to Earth [minutes] |
51.025 ± 1.324 |
Asymptotic plasma parameters (About, Top)
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| Vx GSE [km/s] | -399.7 ± 2.9 | -439.5 ± 4.1 |
| Vy GSE [km/s] | 32.5 ± 1.8 | 31.1 ± 6.1 |
| Vz GSE [km/s] | -20.6 ± 2.6 | -22.5 ± 5.5 |
| Wi [km/s] | 27.7 ± 1.8 | 39.9 ± 3.1 |
| We [km/s] | 876.5 ± 56.3 | 1260.4 ± 97.5 |
| Ni [n/cc] | 4.1 ± 0.2 | 7.6 ± 0.7 |
| Bx GSE [nT] | -2.9 ± 0.3 | -4.0 ± 0.6 |
| By GSE [nT] | 2.0 ± 0.3 | -1.9 ± 0.9 |
| Bz GSE [nT] | 0.5 ± 0.5 | 3.2 ± 0.9 |
| Plasma Beta |
0.513 ± 0.571 |
0.818 ± 0.918 |
| Sound Speed [km/s] |
35.78 ± 2.30 |
51.46 ± 3.98 |
| Alfven Speed [km/s] |
39.16 ± 3.19 |
44.95 ± 4.28 |
Best values of shock front normal for each method (About, Top)
| Method | Nx | Ny | Nz | Theta [degrees] | Phi [degrees] |
| MC | -0.877 ± 0.049 | 0.422 ± 0.087 | 0.231 ± 0.227 | 13.34 ± 7.35 | 154.31 ± 5.61 |
| VC | -0.998 ± 0.009 | -0.021 ± 0.157 | -0.058 ± 0.058 | -3.33 ± 8.42 | 181.21 ± 8.99 |
| MX1 | -0.958 ± 0.072 | 0.282 ± 0.244 | 0.041 ± 0.041 | 2.33 ± 12.86 | 163.58 ± 14.60 |
| MX2 | -0.957 ± 0.043 | 0.108 ± 0.121 | -0.270 ± 0.263 | -15.67 ± 8.80 | 173.58 ± 7.24 |
| MX3 | -0.971 ± 0.028 | 0.165 ± 0.120 | -0.171 ± 0.169 | -9.85 ± 6.29 | 170.37 ± 7.08 |
| RH08 | -0.999 ± 0.001 | -0.026 ± 0.014 | -0.028 ± 0.028 | -1.60 ± 0.69 | 181.50 ± 0.82 |
| RH09 | -0.969 ± 0.017 | 0.216 ± 0.068 | -0.117 ± 0.117 | -6.74 ± 4.02 | 167.47 ± 4.03 |
| RH10 | -0.978 ± 0.015 | 0.182 ± 0.069 | -0.106 ± 0.106 | -6.09 ± 4.02 | 169.47 ± 4.03 |
| Average | -0.963 | 0.166 | -0.060 | -3.451 | 170.186 |
| Median | -0.969 | 0.182 | -0.058 | -3.328 | 170.370 |
| Deviation | 0.038 | 0.150 | 0.150 | 8.676 | 8.983 |
Key shock parameters (About, Top)
| Method | ThetaBn | Shock Speed | Compression |
| MC | 11.0 ± 8.4 | 431.6 ± 10.8 | 1.86 ± 0.14 |
| VC | 37.2 ± 5.0 | 485.9 ± 11.8 | 1.86 ± 0.14 |
| MX1 | 19.5 ± 5.5 | 472.6 ± 11.1 | 1.86 ± 0.14 |
| MX2 | 36.4 ± 4.5 | 474.9 ± 10.2 | 1.86 ± 0.14 |
| MX3 | 30.6 ± 4.4 | 481.1 ± 10.6 | 1.86 ± 0.14 |
| RH08 | 37.0 ± 5.2 | 485.4 ± 12.0 | 1.86 ± 0.14 |
| RH09 | 26.7 ± 4.5 | 480.0 ± 10.7 | 1.86 ± 0.14 |
| RH10 | 28.0 ± 4.6 | 483.1 ± 10.9 | 1.86 ± 0.14 |
| Average | 28.3 | 474.3 | 1.86 |
| Median | 30.6 | 481.1 | 1.86 |
| Deviation | 9.3 | 17.9 | 0.00 |
Upstream wave speeds and mach numbers (About, Top)
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Mach |
Mach |
| MC | 72.2 ± 2.0 | 33.0 ± 1.6 | 38.4 ± 3.1 | 41.6 ± 2.5 | 2.19 ± 0.15 | 1.74 ± 0.13 |
| VC | 86.4 ± 3.0 | 23.3 ± 1.0 | 31.2 ± 2.5 | 47.7 ± 2.3 | 3.72 ± 0.24 | 1.81 ± 0.12 |
| MX1 | 81.2 ± 2.4 | 30.1 ± 1.3 | 36.9 ± 3.0 | 43.8 ± 2.3 | 2.70 ± 0.17 | 1.86 ± 0.12 |
| MX2 | 83.4 ± 2.8 | 23.6 ± 1.0 | 31.5 ± 2.6 | 47.6 ± 2.3 | 3.54 ± 0.21 | 1.76 ± 0.10 |
| MX3 | 83.9 ± 2.7 | 25.9 ± 1.1 | 33.7 ± 2.7 | 46.4 ± 2.3 | 3.24 ± 0.20 | 1.81 ± 0.11 |
| RH8 | 86.3 ± 3.0 | 23.4 ± 1.0 | 31.3 ± 2.5 | 47.7 ± 2.3 | 3.70 ± 0.24 | 1.81 ± 0.12 |
| RH9 | 83.1 ± 2.6 | 27.5 ± 1.2 | 35.0 ± 2.8 | 45.5 ± 2.3 | 3.03 ± 0.19 | 1.83 ± 0.11 |
| RH10 | 84.3 ± 2.6 | 27.0 ± 1.1 | 34.6 ± 2.8 | 45.8 ± 2.3 | 3.13 ± 0.19 | 1.85 ± 0.11 |
| Average | 82.6 | 26.7 | 34.1 | 45.8 | 3.2 | 1.8 |
| Median | 83.9 | 27.0 | 34.6 | 46.4 | 3.2 | 1.8 |
| Deviation | 4.5 | 3.5 | 2.7 | 2.2 | 0.5 | 0.0 |
Downstream wave speeds and mach numbers (About, Top)
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Mach |
Mach |
| MC | 38.4 ± 2.6 | 41.4 ± 1.8 | 44.1 ± 4.2 | 54.5 ± 2.2 | 0.93 ± 0.08 | 0.71 ± 0.08 |
| VC | 46.6 ± 3.9 | 29.7 ± 1.1 | 35.8 ± 3.4 | 61.7 ± 2.2 | 1.57 ± 0.16 | 0.76 ± 0.08 |
| MX1 | 43.5 ± 2.7 | 38.1 ± 1.5 | 42.4 ± 4.0 | 56.9 ± 2.1 | 1.15 ± 0.09 | 0.77 ± 0.07 |
| MX2 | 45.0 ± 2.2 | 30.1 ± 1.1 | 36.2 ± 3.4 | 61.5 ± 2.2 | 1.50 ± 0.11 | 0.73 ± 0.06 |
| MX3 | 45.2 ± 2.4 | 33.0 ± 1.3 | 38.7 ± 3.7 | 60.1 ± 2.1 | 1.37 ± 0.10 | 0.75 ± 0.06 |
| RH8 | 46.5 ± 4.1 | 29.8 ± 1.1 | 35.9 ± 3.4 | 61.7 ± 2.2 | 1.56 ± 0.16 | 0.75 ± 0.08 |
| RH9 | 44.6 ± 2.3 | 34.9 ± 1.4 | 40.2 ± 3.8 | 59.0 ± 2.1 | 1.28 ± 0.09 | 0.76 ± 0.06 |
| RH10 | 45.4 ± 2.6 | 34.2 ± 1.3 | 39.7 ± 3.8 | 59.3 ± 2.1 | 1.33 ± 0.10 | 0.77 ± 0.07 |
| Average | 44.4 | 33.9 | 39.1 | 59.4 | 1.3 | 0.7 |
| Median | 45.2 | 34.2 | 39.7 | 60.1 | 1.4 | 0.8 |
| Deviation | 2.6 | 4.2 | 3.1 | 2.6 | 0.2 | 0.0 |
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Key plasma parameters
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Velocity
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Magnetic Field
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