Interplanetary Shock Analysis Pages
Database: Wind Shock Analysis
Event ID: 19982911929
10/18/1998 291.81200 1929 [UT]
|
MIT Space
Plasma Group Interplanetary Shock Analysis Pages Database: Wind Shock Analysis Event ID: 19982911929 10/18/1998 291.81200 1929 [UT] |
|
| Site |
Data
tables |
Selection |
Normals |
Parameters |
|
Previous event Next event Yearly list Main page Help |
General information Asymptotic parameters Shock front normals Key parameters Wave speed and Mach numbers |
Survey Selected |
Simple
methods Rankine Individual equations |
Shock
speed Theta Bn Mach numbers |
General Information (About, Top)
| Year | 1998 |
| Fractional day of year | 291.811997 |
| Arrival time of shock [seconds of day] | 70156.5 ± 3.0 |
| Shock type | FF |
| Electron data availability | 0 | X GSE location of spacecraft [Re] | 101.110 |
| Y GSE location of spacecraft [Re] | 31.794 |
| Z GSE location of spacecraft [Re] | 6.040 |
| Upstream plasma points selected for analysis | 0007 |
| Upstream field points selected for analysis | 0221 |
| Downstream plasma points selected for analysis | 0004 |
| Downstream field points selected for analysis | 0118 |
| Minimum chisq/dof for RH8,RH9,RH10 | 27.59, 74.58, 78.76 |
| Event added to database |
Mon Feb 14 11:07:13 2005 |
| Event last processed |
Sun Mar 13 10:50:40 2005 |
| Method selected |
RH08 |
| Propagation delay to Earth [minutes] |
22.846 ± 5.476 |
Asymptotic plasma parameters (About, Top)
|
|
|
|
| Vx GSE [km/s] | -325.6 ± 1.1 | -352.3 ± 0.7 |
| Vy GSE [km/s] | 13.0 ± 1.1 | 12.8 ± 2.2 |
| Vz GSE [km/s] | -9.2 ± 1.1 | -49.7 ± 1.1 |
| Wi [km/s] | 22.0 ± 0.3 | 30.7 ± 1.4 |
| We [km/s] | 694.3 ± 9.5 | 971.3 ± 44.1 |
| Ni [n/cc] | 17.3 ± 0.8 | 37.4 ± 2.1 |
| Bx GSE [nT] | 4.4 ± 0.2 | 5.4 ± 0.9 |
| By GSE [nT] | -2.3 ± 0.1 | -5.9 ± 0.4 |
| Bz GSE [nT] | 0.2 ± 0.1 | -1.6 ± 0.5 |
| Plasma Beta |
0.713 ± 0.645 |
1.121 ± 1.138 |
| Sound Speed [km/s] |
28.34 ± 0.39 |
39.65 ± 1.80 |
| Alfven Speed [km/s] |
26.14 ± 1.55 |
29.17 ± 1.63 |
Best values of shock front normal for each method (About, Top)
| Method | Nx | Ny | Nz | Theta [degrees] | Phi [degrees] |
| MC | -0.922 ± 0.069 | -0.029 ± 0.091 | -0.386 ± 0.366 | -22.72 ± 10.22 | 181.79 ± 5.65 |
| VC | -0.553 ± 0.029 | -0.005 ± 0.045 | -0.833 ± 0.545 | -56.45 ± 1.99 | 180.56 ± 4.63 |
| MX1 | -0.727 ± 0.057 | 0.146 ± 0.049 | -0.671 ± 0.545 | -42.11 ± 4.94 | 168.64 ± 3.73 |
| MX2 | -0.671 ± 0.034 | 0.176 ± 0.059 | -0.721 ± 0.558 | -46.10 ± 2.53 | 165.33 ± 4.96 |
| MX3 | -0.621 ± 0.036 | 0.201 ± 0.069 | -0.758 ± 0.561 | -49.26 ± 2.29 | 162.02 ± 6.31 |
| RH08 | -0.693 ± 0.010 | 0.129 ± 0.013 | -0.709 ± 0.556 | -45.19 ± 0.80 | 169.47 ± 1.04 |
| RH09 | -0.995 ± 0.007 | 0.026 ± 0.068 | -0.095 ± 0.095 | -5.45 ± 4.03 | 178.50 ± 3.91 |
| RH10 | -0.995 ± 0.007 | 0.026 ± 0.069 | -0.095 ± 0.095 | -5.45 ± 4.02 | 178.50 ± 3.99 |
| Average | -0.772 | 0.084 | -0.533 | -34.091 | 173.099 |
| Median | -0.693 | 0.129 | -0.671 | -42.111 | 178.496 |
| Deviation | 0.174 | 0.089 | 0.300 | 20.112 | 7.612 |
Key shock parameters (About, Top)
| Method | ThetaBn | Shock Speed | Compression |
| MC | 35.6 ± 1.5 | 377.9 ± 5.1 | 2.22 ± 0.09 |
| VC | 59.0 ± 1.0 | 276.3 ± 5.1 | 2.22 ± 0.09 |
| MX1 | 42.7 ± 1.0 | 329.7 ± 5.8 | 2.22 ± 0.09 |
| MX2 | 45.5 ± 1.0 | 312.8 ± 5.8 | 2.22 ± 0.09 |
| MX3 | 47.9 ± 1.0 | 297.5 ± 5.8 | 2.22 ± 0.09 |
| RH08 | 45.8 ± 1.0 | 319.7 ± 5.7 | 2.22 ± 0.09 |
| RH09 | 26.8 ± 2.0 | 382.1 ± 4.7 | 2.22 ± 0.09 |
| RH10 | 26.8 ± 2.0 | 382.1 ± 4.7 | 2.22 ± 0.09 |
| Average | 41.3 | 334.8 | 2.22 |
| Median | 45.5 | 329.7 | 2.22 |
| Deviation | 11.0 | 41.2 | 0.00 |
Upstream wave speeds and mach numbers (About, Top)
|
|
|
|
|
|
Mach |
Mach |
| MC | 74.5 ± 0.7 | 17.5 ± 0.6 | 21.3 ± 1.3 | 34.4 ± 0.7 | 4.26 ± 0.18 | 2.17 ± 0.07 |
| VC | 88.7 ± 0.6 | 10.3 ± 0.3 | 13.5 ± 0.8 | 37.2 ± 0.8 | 8.65 ± 0.29 | 2.39 ± 0.06 |
| MX1 | 84.8 ± 0.7 | 15.4 ± 0.5 | 19.2 ± 1.1 | 35.4 ± 0.8 | 5.52 ± 0.22 | 2.40 ± 0.07 |
| MX2 | 85.5 ± 0.7 | 14.5 ± 0.4 | 18.3 ± 1.1 | 35.7 ± 0.8 | 5.90 ± 0.23 | 2.39 ± 0.07 |
| MX3 | 85.8 ± 0.8 | 13.8 ± 0.4 | 17.5 ± 1.0 | 36.0 ± 0.8 | 6.24 ± 0.24 | 2.38 ± 0.07 |
| RH8 | 85.9 ± 0.7 | 14.4 ± 0.4 | 18.2 ± 1.1 | 35.8 ± 0.8 | 5.96 ± 0.23 | 2.40 ± 0.07 |
| RH9 | 56.9 ± 1.0 | 20.0 ± 0.7 | 23.3 ± 1.4 | 33.0 ± 0.6 | 2.84 ± 0.15 | 1.73 ± 0.06 |
| RH10 | 56.9 ± 1.0 | 20.0 ± 0.7 | 23.3 ± 1.4 | 33.0 ± 0.6 | 2.84 ± 0.15 | 1.73 ± 0.06 |
| Average | 77.4 | 15.7 | 19.3 | 35.1 | 5.3 | 2.2 |
| Median | 85.5 | 15.4 | 19.2 | 35.7 | 5.9 | 2.4 |
| Deviation | 13.3 | 3.3 | 3.3 | 1.5 | 1.9 | 0.3 |
Downstream wave speeds and mach numbers (About, Top)
|
|
|
|
|
|
Mach |
Mach |
| MC | 34.3 ± 0.2 | 21.1 ± 0.9 | 23.7 ± 1.3 | 44.5 ± 1.5 | 1.63 ± 0.06 | 0.77 ± 0.02 |
| VC | 40.2 ± 0.6 | 12.5 ± 0.5 | 15.0 ± 0.8 | 47.6 ± 1.5 | 3.22 ± 0.17 | 0.85 ± 0.04 |
| MX1 | 38.3 ± 0.3 | 18.6 ± 0.8 | 21.4 ± 1.2 | 45.6 ± 1.5 | 2.06 ± 0.08 | 0.84 ± 0.03 |
| MX2 | 38.4 ± 0.3 | 17.6 ± 0.7 | 20.4 ± 1.1 | 46.0 ± 1.5 | 2.19 ± 0.09 | 0.84 ± 0.03 |
| MX3 | 38.6 ± 0.4 | 16.7 ± 0.7 | 19.5 ± 1.1 | 46.3 ± 1.5 | 2.31 ± 0.10 | 0.83 ± 0.03 |
| RH8 | 38.7 ± 0.3 | 17.5 ± 0.7 | 20.3 ± 1.1 | 46.0 ± 1.5 | 2.21 ± 0.09 | 0.84 ± 0.03 |
| RH9 | 26.5 ± 0.6 | 24.0 ± 1.1 | 26.0 ± 1.5 | 43.0 ± 1.5 | 1.10 ± 0.03 | 0.62 ± 0.02 |
| RH10 | 26.5 ± 0.6 | 24.0 ± 1.1 | 26.0 ± 1.5 | 43.0 ± 1.5 | 1.10 ± 0.03 | 0.62 ± 0.02 |
| Average | 35.2 | 19.0 | 21.6 | 45.3 | 2.0 | 0.8 |
| Median | 38.4 | 18.6 | 21.4 | 46.0 | 2.2 | 0.8 |
| Deviation | 5.6 | 3.9 | 3.7 | 1.6 | 0.7 | 0.1 |
|
Key plasma parameters
 |
Velocity
 |
Magnetic Field
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
