Database: Wind Shock Analysis
Event ID: 19980971653
Observation time: 04/07/1998 97.70387 1653 [UT]
|
|
General
Information (About, Top)
| Year |
1998 |
| Fractional day of year |
97.703872 |
| Arrival time of shock [seconds of day] |
60814.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
225.170 |
| Y GSE location of spacecraft [Re] |
-18.040 |
| Z GSE location of spacecraft [Re] |
4.685 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0264 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0217 |
| Minimum chisq/dof for RH8,RH9,RH10 |
10.61, 28.31, 29.31 |
Event added to database
|
Mon Feb 14 11:06:08 2005
|
Event last processed
|
Mon Mar 30 17:38:10 2009
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Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
58.989 ± 7.324
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-289.1 ± 0.6 |
-324.2 ± 3.5 |
| Vy GSE [km/s] |
-1.6 ± 2.7 |
-15.5 ± 3.7 |
| Vz GSE [km/s] |
-17.0 ± 1.1 |
-60.2 ± 3.5 |
| Wi [km/s] |
19.4 ± 0.7 |
25.5 ± 1.3 |
| We [km/s] |
613.8 ± 22.2 |
805.2 ± 40.8 |
| Ni [n/cc] |
9.3 ± 0.3 |
18.3 ± 1.2 |
| Bx GSE [nT] |
6.7 ± 0.1 |
9.7 ± 0.3 |
| By GSE [nT] |
-0.3 ± 0.4 |
-5.2 ± 0.8 |
| Bz GSE [nT] |
-1.5 ± 0.1 |
-6.2 ± 0.5 |
Plasma Beta
|
0.155 ± 0.157
|
0.156 ± 0.159
|
Sound Speed [km/s]
|
25.06 ± 0.91
|
32.87 ± 1.67
|
Alfven Speed [km/s]
|
49.38 ± 1.02
|
64.83 ± 1.86
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.912 ± 0.028 |
-0.369 ± 0.053 |
-0.179 ± 0.177 |
-10.33 ± 6.50 |
202.05 ± 3.30 |
| VC |
-0.613 ± 0.052 |
-0.242 ± 0.068 |
-0.752 ± 0.561 |
-48.74 ± 3.72 |
201.56 ± 6.09 |
| MX1 |
-0.903 ± 0.034 |
-0.141 ± 0.058 |
-0.406 ± 0.382 |
-23.96 ± 4.70 |
188.91 ± 3.68 |
| MX2 |
-0.873 ± 0.025 |
-0.052 ± 0.055 |
-0.484 ± 0.442 |
-28.97 ± 2.99 |
183.41 ± 3.61 |
| MX3 |
-0.841 ± 0.020 |
0.021 ± 0.057 |
-0.541 ± 0.481 |
-32.75 ± 2.14 |
178.60 ± 3.88 |
| RH08 |
-0.906 ± 0.004 |
0.056 ± 0.009 |
-0.419 ± 0.393 |
-24.77 ± 0.59 |
176.49 ± 0.55 |
| RH09 |
-0.961 ± 0.018 |
0.025 ± 0.070 |
-0.274 ± 0.267 |
-15.89 ± 3.79 |
178.50 ± 4.20 |
| RH10 |
-0.961 ± 0.018 |
0.025 ± 0.071 |
-0.274 ± 0.267 |
-15.89 ± 3.85 |
178.50 ± 4.21 |
| Average |
-0.871 |
-0.085 |
-0.416 |
-25.162 |
186.000 |
| Median |
-0.903 |
0.021 |
-0.406 |
-23.963 |
183.406 |
| Deviation |
0.112 |
0.154 |
0.181 |
12.081 |
10.506 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
33.5 ± 2.6 |
359.2 ± 5.9 |
1.98 ± 0.17 |
| VC |
64.7 ± 1.2 |
307.9 ± 4.6 |
1.98 ± 0.17 |
| MX1 |
38.0 ± 1.3 |
373.3 ± 4.4 |
1.98 ± 0.17 |
| MX2 |
41.7 ± 0.9 |
367.6 ± 4.1 |
1.98 ± 0.17 |
| MX3 |
45.1 ± 0.8 |
359.7 ± 4.1 |
1.98 ± 0.17 |
| RH08 |
37.1 ± 0.9 |
368.8 ± 4.0 |
1.98 ± 0.17 |
| RH09 |
28.3 ± 0.9 |
374.5 ± 4.1 |
1.98 ± 0.17 |
| RH10 |
28.3 ± 0.9 |
374.5 ± 4.1 |
1.98 ± 0.17 |
| Average |
39.6 |
360.7 |
1.98 |
| Median |
38.0 |
368.8 |
1.98 |
| Deviation |
11.7 |
22.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
92.0 ± 1.5 |
20.0 ± 0.7 |
41.2 ± 0.8 |
51.6 ± 1.1 |
4.60 ± 0.14 |
1.78 ± 0.03 |
| VC |
117.4 ± 1.5 |
9.7 ± 0.3 |
21.1 ± 0.4 |
54.5 ± 1.1 |
12.10 ± 0.35 |
2.15 ± 0.04 |
| MX1 |
105.1 ± 1.1 |
18.7 ± 0.6 |
38.9 ± 0.8 |
52.1 ± 1.1 |
5.63 ± 0.17 |
2.02 ± 0.03 |
| MX2 |
106.7 ± 0.9 |
17.6 ± 0.6 |
36.9 ± 0.8 |
52.5 ± 1.1 |
6.07 ± 0.18 |
2.03 ± 0.03 |
| MX3 |
107.5 ± 0.8 |
16.5 ± 0.5 |
34.9 ± 0.7 |
52.9 ± 1.1 |
6.51 ± 0.20 |
2.03 ± 0.03 |
| RH8 |
99.7 ± 0.7 |
19.0 ± 0.6 |
39.4 ± 0.8 |
52.0 ± 1.1 |
5.26 ± 0.16 |
1.92 ± 0.03 |
| RH9 |
91.9 ± 0.7 |
21.3 ± 0.7 |
43.5 ± 0.9 |
51.1 ± 1.0 |
4.31 ± 0.14 |
1.80 ± 0.03 |
| RH10 |
91.9 ± 0.7 |
21.3 ± 0.7 |
43.5 ± 0.9 |
51.1 ± 1.0 |
4.31 ± 0.14 |
1.80 ± 0.03 |
| Average |
101.5 |
18.0 |
37.4 |
52.2 |
6.1 |
1.9 |
| Median |
105.1 |
19.0 |
39.4 |
52.1 |
5.6 |
2.0 |
| Deviation |
9.3 |
3.7 |
7.2 |
1.1 |
2.6 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
47.1 ± 3.6 |
26.2 ± 1.1 |
54.1 ± 1.6 |
67.8 ± 1.5 |
1.80 ± 0.18 |
0.69 ± 0.04 |
| VC |
60.0 ± 3.5 |
12.7 ± 0.5 |
27.7 ± 0.8 |
71.6 ± 1.2 |
4.73 ± 0.43 |
0.84 ± 0.04 |
| MX1 |
54.0 ± 3.7 |
24.5 ± 1.0 |
51.1 ± 1.5 |
68.5 ± 1.4 |
2.21 ± 0.22 |
0.79 ± 0.04 |
| MX2 |
54.5 ± 3.9 |
23.1 ± 1.0 |
48.4 ± 1.4 |
69.0 ± 1.4 |
2.37 ± 0.25 |
0.79 ± 0.04 |
| MX3 |
54.9 ± 4.0 |
21.7 ± 0.9 |
45.8 ± 1.3 |
69.4 ± 1.3 |
2.54 ± 0.27 |
0.79 ± 0.04 |
| RH8 |
50.6 ± 3.9 |
24.9 ± 1.1 |
51.7 ± 1.5 |
68.3 ± 1.4 |
2.04 ± 0.23 |
0.74 ± 0.04 |
| RH9 |
46.7 ± 3.8 |
28.0 ± 1.3 |
57.1 ± 1.6 |
67.1 ± 1.6 |
1.68 ± 0.19 |
0.70 ± 0.04 |
| RH10 |
46.7 ± 3.8 |
28.0 ± 1.3 |
57.1 ± 1.6 |
67.1 ± 1.6 |
1.68 ± 0.19 |
0.70 ± 0.04 |
| Average |
51.8 |
23.6 |
49.1 |
68.6 |
2.4 |
0.8 |
| Median |
54.0 |
24.9 |
51.7 |
68.5 |
2.2 |
0.8 |
| Deviation |
4.8 |
4.9 |
9.5 |
1.5 |
1.0 |
0.1 |
Survey interval (About, Top)
Selected
data (About, Top)
|
Key plasma parameters
|
Velocity
|
Magnetic Field
|
Simple
Methods
(About, Top)
Rankine Chi^2
Contour (About, Top)
Shock
Speed (About, Top)
Theta Bn (About, Top)
Mach Numbers (About, Top)
Page updated Fri Jun 13 11:06:02 2014
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
