Database: Wind Shock Analysis
Event ID: 19980240437
Observation time: 01/24/1998 24.19269 0437 [UT]
|
|
General
Information (About, Top)
| Year |
1998 |
| Fractional day of year |
24.192691 |
| Arrival time of shock [seconds of day] |
16648.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
234.200 |
| Y GSE location of spacecraft [Re] |
10.589 |
| Z GSE location of spacecraft [Re] |
-21.700 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0263 |
| Downstream plasma points selected for analysis |
0005
|
| Downstream field points selected for analysis |
0219 |
| Minimum chisq/dof for RH8,RH9,RH10 |
14.23, 18.69, 19.37 |
Event added to database
|
Mon Feb 14 11:05:53 2005
|
Event last processed
|
Mon Mar 30 17:30:52 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
56.343 ± 4.268
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-366.9 ± 1.2 |
-400.0 ± 3.7 |
| Vy GSE [km/s] |
8.9 ± 0.8 |
8.8 ± 1.3 |
| Vz GSE [km/s] |
-1.7 ± 0.6 |
34.3 ± 2.6 |
| Wi [km/s] |
19.8 ± 0.4 |
29.1 ± 1.4 |
| We [km/s] |
627.6 ± 11.1 |
921.8 ± 44.9 |
| Ni [n/cc] |
9.8 ± 0.4 |
21.4 ± 1.2 |
| Bx GSE [nT] |
-2.3 ± 0.2 |
-2.4 ± 1.2 |
| By GSE [nT] |
0.9 ± 0.2 |
4.4 ± 1.2 |
| Bz GSE [nT] |
-1.3 ± 0.2 |
-2.6 ± 0.8 |
Plasma Beta
|
1.040 ± 1.067
|
1.107 ± 1.089
|
Sound Speed [km/s]
|
25.62 ± 0.45
|
37.63 ± 1.83
|
Alfven Speed [km/s]
|
19.50 ± 0.61
|
27.91 ± 1.83
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.948 ± 0.086 |
-0.179 ± 0.320 |
-0.264 ± 0.257 |
-15.28 ± 13.60 |
190.70 ± 19.34 |
| VC |
-0.676 ± 0.048 |
-0.001 ± 0.030 |
0.737 ± 0.560 |
47.50 ± 3.73 |
180.12 ± 2.54 |
| MX1 |
-0.929 ± 0.140 |
0.149 ± 0.093 |
0.339 ± 0.326 |
19.83 ± 23.86 |
170.91 ± 5.54 |
| MX2 |
-0.762 ± 0.059 |
0.176 ± 0.069 |
0.623 ± 0.526 |
38.56 ± 5.33 |
166.96 ± 5.13 |
| MX3 |
-0.711 ± 0.055 |
0.196 ± 0.070 |
0.675 ± 0.547 |
42.48 ± 4.55 |
164.60 ± 5.55 |
| RH08 |
-0.910 ± 0.009 |
0.236 ± 0.019 |
0.341 ± 0.327 |
19.92 ± 1.25 |
165.46 ± 1.17 |
| RH09 |
-0.996 ± 0.006 |
0.061 ± 0.066 |
-0.061 ± 0.061 |
-3.52 ± 4.02 |
176.49 ± 3.79 |
| RH10 |
-0.996 ± 0.006 |
0.061 ± 0.068 |
-0.061 ± 0.061 |
-3.52 ± 4.02 |
176.49 ± 3.91 |
| Average |
-0.866 |
0.087 |
0.291 |
18.244 |
173.967 |
| Median |
-0.910 |
0.149 |
0.341 |
19.925 |
176.490 |
| Deviation |
0.130 |
0.134 |
0.381 |
23.703 |
8.858 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
33.0 ± 4.8 |
388.9 ± 6.1 |
2.23 ± 0.18 |
| VC |
78.4 ± 4.5 |
335.6 ± 8.6 |
2.23 ± 0.18 |
| MX1 |
49.8 ± 4.5 |
421.6 ± 7.5 |
2.23 ± 0.18 |
| MX2 |
67.4 ± 4.6 |
367.4 ± 8.0 |
2.23 ± 0.18 |
| MX3 |
71.1 ± 4.6 |
348.8 ± 8.1 |
2.23 ± 0.18 |
| RH08 |
48.9 ± 4.6 |
414.2 ± 7.2 |
2.23 ± 0.18 |
| RH09 |
30.7 ± 4.3 |
425.0 ± 6.5 |
2.23 ± 0.18 |
| RH10 |
30.7 ± 4.3 |
425.0 ± 6.5 |
2.23 ± 0.18 |
| Average |
51.3 |
390.8 |
2.23 |
| Median |
49.8 |
414.2 |
2.23 |
| Deviation |
19.2 |
36.3 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
42.3 ± 1.2 |
14.6 ± 0.3 |
16.3 ± 0.5 |
28.7 ± 0.3 |
2.90 ± 0.07 |
1.47 ± 0.04 |
| VC |
88.9 ± 0.9 |
3.1 ± 0.1 |
3.9 ± 0.1 |
32.1 ± 0.3 |
28.31 ± 0.48 |
2.77 ± 0.03 |
| MX1 |
80.0 ± 1.0 |
10.6 ± 0.2 |
12.6 ± 0.4 |
30.4 ± 0.3 |
7.55 ± 0.12 |
2.63 ± 0.04 |
| MX2 |
87.3 ± 0.9 |
6.1 ± 0.1 |
7.5 ± 0.2 |
31.6 ± 0.3 |
14.41 ± 0.24 |
2.76 ± 0.03 |
| MX3 |
87.3 ± 0.8 |
5.1 ± 0.1 |
6.3 ± 0.2 |
31.8 ± 0.3 |
17.14 ± 0.29 |
2.74 ± 0.03 |
| RH8 |
78.7 ± 1.0 |
10.8 ± 0.2 |
12.8 ± 0.4 |
30.3 ± 0.3 |
7.27 ± 0.12 |
2.59 ± 0.03 |
| RH9 |
58.8 ± 1.1 |
15.1 ± 0.3 |
16.8 ± 0.5 |
28.4 ± 0.3 |
3.90 ± 0.07 |
2.07 ± 0.04 |
| RH10 |
58.8 ± 1.1 |
15.1 ± 0.3 |
16.8 ± 0.5 |
28.4 ± 0.3 |
3.90 ± 0.07 |
2.07 ± 0.04 |
| Average |
72.8 |
10.1 |
11.6 |
30.2 |
10.7 |
2.4 |
| Median |
80.0 |
10.8 |
12.8 |
30.4 |
7.6 |
2.6 |
| Deviation |
17.3 |
4.8 |
5.1 |
1.5 |
8.8 |
0.5 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
20.4 ± 3.6 |
21.0 ± 0.9 |
23.4 ± 1.5 |
41.9 ± 1.5 |
0.98 ± 0.21 |
0.49 ± 0.10 |
| VC |
40.0 ± 3.1 |
4.5 ± 0.2 |
5.6 ± 0.4 |
46.7 ± 1.6 |
8.87 ± 1.01 |
0.86 ± 0.09 |
| MX1 |
37.1 ± 3.4 |
15.3 ± 0.6 |
18.0 ± 1.2 |
44.3 ± 1.5 |
2.44 ± 0.31 |
0.84 ± 0.10 |
| MX2 |
39.7 ± 3.0 |
8.7 ± 0.3 |
10.7 ± 0.7 |
46.1 ± 1.6 |
4.56 ± 0.52 |
0.86 ± 0.09 |
| MX3 |
39.5 ± 2.9 |
7.3 ± 0.3 |
9.0 ± 0.6 |
46.3 ± 1.6 |
5.40 ± 0.60 |
0.85 ± 0.08 |
| RH8 |
36.4 ± 3.3 |
15.6 ± 0.6 |
18.3 ± 1.2 |
44.2 ± 1.5 |
2.34 ± 0.30 |
0.82 ± 0.09 |
| RH9 |
28.1 ± 3.6 |
21.7 ± 1.0 |
24.0 ± 1.6 |
41.5 ± 1.5 |
1.30 ± 0.21 |
0.68 ± 0.10 |
| RH10 |
28.1 ± 3.6 |
21.7 ± 1.0 |
24.0 ± 1.6 |
41.5 ± 1.5 |
1.30 ± 0.21 |
0.68 ± 0.10 |
| Average |
33.7 |
14.5 |
16.6 |
44.1 |
3.4 |
0.8 |
| Median |
37.1 |
15.6 |
18.3 |
44.3 |
2.4 |
0.8 |
| Deviation |
7.2 |
6.9 |
7.3 |
2.2 |
2.7 |
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)
| 
