Database: Wind Shock Analysis
Event ID: 20170990955
Observation time: 04/09/2017 99.41345 0955 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
99.413455 |
| Arrival time of shock [seconds of day] |
35722.5 ± 30.0 |
| Shock type |
SF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
243.616 |
| Y GSE location of spacecraft [Re] |
-80.111 |
| Z GSE location of spacecraft [Re] |
12.690 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0219 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0245 |
| Minimum chisq/dof for RH8,RH9,RH10 |
0.98, 1.03, 1.12 |
Event added to database
|
Tue Oct 24 12:09:05 2017
|
Event last processed
|
Tue Oct 24 13:14:24 2017
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
32.758 ± 1.555
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-472.1 ± 7.5 |
-466.8 ± 0.9 |
| Vy GSE [km/s] |
-7.0 ± 10.6 |
-8.5 ± 1.1 |
| Vz GSE [km/s] |
-30.3 ± 5.7 |
-28.9 ± 0.9 |
| Wi [km/s] |
36.7 ± 2.6 |
20.1 ± 1.6 |
| We [km/s] |
1161.0 ± 80.9 |
634.5 ± 49.4 |
| Ni [n/cc] |
8.2 ± 1.1 |
5.4 ± 0.3 |
| Bx GSE [nT] |
1.4 ± 1.0 |
-4.9 ± 0.1 |
| By GSE [nT] |
-1.1 ± 1.5 |
4.5 ± 0.2 |
| Bz GSE [nT] |
-4.8 ± 0.3 |
-2.7 ± 0.2 |
Plasma Beta
|
0.824 ± 0.780
|
0.089 ± 0.096
|
Sound Speed [km/s]
|
47.40 ± 3.30
|
25.90 ± 2.02
|
Alfven Speed [km/s]
|
41.19 ± 4.85
|
67.72 ± 2.69
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.176 ± 0.070 |
0.185 ± 0.071 |
-0.967 ± 0.336 |
-75.18 ± 4.71 |
133.53 ± 13.66 |
| VC |
-0.766 ± 0.520 |
0.573 ± 0.691 |
-0.293 ± 0.284 |
-17.01 ± 17.92 |
143.22 ± 51.52 |
| MX1 |
-0.973 ± 0.236 |
-0.206 ± 0.985 |
-0.105 ± 0.104 |
-6.00 ± 62.55 |
191.94 ± 58.01 |
| MX2 |
-0.866 ± 0.384 |
-0.445 ± 0.702 |
-0.227 ± 0.223 |
-13.12 ± 38.66 |
207.22 ± 46.21 |
| MX3 |
-0.952 ± 0.273 |
-0.201 ± 0.904 |
-0.229 ± 0.225 |
-13.26 ± 50.03 |
191.89 ± 54.32 |
| RH08 |
-0.673 ± 0.005 |
-0.687 ± 0.005 |
-0.274 ± 0.267 |
-15.89 ± 1.44 |
225.63 ± 0.00 |
| RH09 |
-0.673 ± 0.013 |
-0.687 ± 0.013 |
-0.274 ± 0.267 |
-15.89 ± 2.76 |
225.63 ± 0.75 |
| RH10 |
-0.673 ± 0.015 |
-0.687 ± 0.015 |
-0.274 ± 0.267 |
-15.89 ± 3.36 |
225.63 ± 0.80 |
| Average |
-0.719 |
-0.270 |
-0.330 |
-21.529 |
193.084 |
| Median |
-0.673 |
-0.206 |
-0.274 |
-15.887 |
207.215 |
| Deviation |
0.252 |
0.460 |
0.264 |
21.955 |
36.670 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
35.0 ± 17.8 |
114.8 ± 11.3 |
0.68 ± 0.12 |
| VC |
87.5 ± 18.2 |
363.8 ± 78.6 |
0.68 ± 0.12 |
| MX1 |
83.3 ± 7.8 |
467.4 ± 51.3 |
0.68 ± 0.12 |
| MX2 |
86.1 ± 4.2 |
424.6 ± 29.7 |
0.68 ± 0.12 |
| MX3 |
89.9 ± 8.2 |
462.2 ± 48.8 |
0.68 ± 0.12 |
| RH08 |
78.1 ± 3.7 |
337.7 ± 3.2 |
0.68 ± 0.12 |
| RH09 |
78.1 ± 3.7 |
337.7 ± 3.2 |
0.68 ± 0.12 |
| RH10 |
78.1 ± 3.7 |
337.7 ± 23.4 |
0.68 ± 0.12 |
| Average |
77.0 |
355.7 |
0.68 |
| Median |
83.3 |
363.8 |
0.68 |
| Deviation |
17.6 |
111.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
3.7 ± 8.5 |
28.4 ± 2.4 |
33.8 ± 4.0 |
56.1 ± 3.8 |
0.12 ± 0.31 |
0.06 ± 0.15 |
| VC |
-2.7 ± 13.2 |
1.4 ± 0.1 |
1.8 ± 0.2 |
62.9 ± 4.4 |
-2.21 ± 10.07 |
-0.05 ± 0.22 |
| MX1 |
3.4 ± 5.7 |
3.6 ± 0.3 |
4.8 ± 0.6 |
62.8 ± 4.4 |
0.91 ± 1.60 |
0.05 ± 0.09 |
| MX2 |
5.7 ± 3.1 |
2.1 ± 0.2 |
2.8 ± 0.3 |
62.9 ± 4.4 |
2.66 ± 1.41 |
0.09 ± 0.05 |
| MX3 |
4.2 ± 6.2 |
0.0 ± 0.0 |
0.0 ± 0.0 |
62.9 ± 4.4 |
126.36 ± 199.61 |
0.06 ± 0.10 |
| RH8 |
7.0 ± 1.5 |
6.4 ± 0.5 |
8.5 ± 1.0 |
62.6 ± 4.4 |
1.08 ± 0.21 |
0.11 ± 0.02 |
| RH9 |
7.0 ± 1.5 |
6.4 ± 0.5 |
8.5 ± 1.0 |
62.6 ± 4.4 |
1.08 ± 0.21 |
0.11 ± 0.02 |
| RH10 |
7.0 ± 1.5 |
6.4 ± 0.5 |
8.5 ± 1.0 |
62.6 ± 4.4 |
1.08 ± 0.21 |
0.11 ± 0.02 |
| Average |
4.4 |
6.9 |
8.6 |
61.9 |
16.4 |
0.1 |
| Median |
5.7 |
6.4 |
8.5 |
62.8 |
1.1 |
0.1 |
| Deviation |
3.2 |
9.1 |
10.7 |
2.4 |
44.5 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
6.2 ± 0.9 |
20.7 ± 1.5 |
55.5 ± 2.2 |
69.5 ± 2.4 |
0.30 ± 0.05 |
0.09 ± 0.02 |
| VC |
2.7 ± 1.3 |
1.1 ± 0.1 |
3.0 ± 0.1 |
72.5 ± 2.0 |
2.52 ± 1.15 |
0.04 ± 0.02 |
| MX1 |
8.4 ± 0.7 |
2.8 ± 0.2 |
7.8 ± 0.3 |
72.5 ± 2.0 |
3.02 ± 0.33 |
0.12 ± 0.01 |
| MX2 |
10.0 ± 0.5 |
1.7 ± 0.1 |
4.6 ± 0.2 |
72.5 ± 2.0 |
6.07 ± 0.55 |
0.14 ± 0.01 |
| MX3 |
9.3 ± 0.7 |
0.0 ± 0.0 |
0.1 ± 0.0 |
72.5 ± 2.0 |
376.87 ± 38.44 |
0.13 ± 0.01 |
| RH8 |
9.9 ± 0.4 |
5.0 ± 0.3 |
14.0 ± 0.6 |
72.4 ± 2.0 |
1.99 ± 0.18 |
0.14 ± 0.01 |
| RH9 |
9.9 ± 0.4 |
5.0 ± 0.3 |
14.0 ± 0.6 |
72.4 ± 2.0 |
1.99 ± 0.18 |
0.14 ± 0.01 |
| RH10 |
9.9 ± 0.4 |
5.0 ± 0.3 |
14.0 ± 0.6 |
72.4 ± 2.0 |
1.99 ± 0.18 |
0.14 ± 0.01 |
| Average |
8.3 |
5.2 |
14.1 |
72.1 |
49.3 |
0.1 |
| Median |
9.9 |
5.0 |
14.0 |
72.5 |
2.5 |
0.1 |
| Deviation |
2.6 |
6.6 |
17.6 |
1.0 |
132.4 |
0.0 |
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 Wed Jan 22 21:47:00 2020
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
