Database: Wind Shock Analysis
Event ID: 20180460754
Observation time: 02/15/2018 46.32946 0754 [UT]
|
|
General
Information (About, Top)
| Year |
2018 |
| Fractional day of year |
46.329462 |
| Arrival time of shock [seconds of day] |
28465.5 ± 50.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
251.253 |
| Y GSE location of spacecraft [Re] |
56.951 |
| Z GSE location of spacecraft [Re] |
5.358 |
| Upstream plasma points selected for analysis |
0004 |
| Upstream field points selected for analysis |
0134 |
| Downstream plasma points selected for analysis |
0006
|
| Downstream field points selected for analysis |
0192 |
| Minimum chisq/dof for RH8,RH9,RH10 |
18.51, 44.37, 69.37 |
Event added to database
|
Fri Apr 20 10:04:36 2018
|
Event last processed
|
Fri Apr 20 10:16:34 2018
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
55.211 ± 18.542
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-309.3 ± 0.1 |
-337.0 ± 1.3 |
| Vy GSE [km/s] |
3.9 ± 1.0 |
10.3 ± 1.8 |
| Vz GSE [km/s] |
3.1 ± 0.9 |
36.8 ± 0.8 |
| Wi [km/s] |
15.5 ± 0.3 |
20.7 ± 0.6 |
| We [km/s] |
489.2 ± 10.9 |
654.8 ± 19.2 |
| Ni [n/cc] |
11.0 ± 0.5 |
23.0 ± 0.9 |
| Bx GSE [nT] |
-1.0 ± 0.0 |
-3.1 ± 0.4 |
| By GSE [nT] |
2.6 ± 0.0 |
5.3 ± 0.4 |
| Bz GSE [nT] |
-2.3 ± 0.0 |
-4.6 ± 0.4 |
Plasma Beta
|
0.428 ± 0.446
|
0.355 ± 0.352
|
Sound Speed [km/s]
|
19.97 ± 0.44
|
26.73 ± 0.78
|
Alfven Speed [km/s]
|
23.65 ± 0.53
|
34.98 ± 2.01
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.852 ± 0.170 |
-0.222 ± 0.366 |
0.474 ± 0.435 |
28.30 ± 17.68 |
194.62 ± 24.48 |
| VC |
-0.629 ± 0.018 |
0.146 ± 0.047 |
0.764 ± 0.561 |
49.80 ± 1.14 |
166.93 ± 4.23 |
| MX1 |
-0.633 ± 0.029 |
0.155 ± 0.023 |
0.758 ± 0.561 |
49.32 ± 2.19 |
166.21 ± 2.01 |
| MX2 |
-0.634 ± 0.030 |
0.153 ± 0.027 |
0.758 ± 0.561 |
49.26 ± 2.28 |
166.43 ± 2.33 |
| MX3 |
-0.635 ± 0.031 |
0.151 ± 0.030 |
0.757 ± 0.561 |
49.21 ± 2.35 |
166.60 ± 2.59 |
| RH08 |
-0.623 ± 0.012 |
0.162 ± 0.017 |
0.765 ± 0.561 |
49.94 ± 0.83 |
165.46 ± 1.51 |
| RH09 |
0.043 ± 0.068 |
0.655 ± 0.040 |
0.754 ± 0.561 |
48.95 ± 3.02 |
86.24 ± 5.94 |
| RH10 |
0.056 ± 0.069 |
0.667 ± 0.051 |
0.743 ± 0.561 |
47.99 ± 3.96 |
85.24 ± 5.94 |
| Average |
-0.488 |
0.233 |
0.722 |
46.597 |
149.715 |
| Median |
-0.629 |
0.155 |
0.758 |
49.259 |
166.431 |
| Deviation |
0.341 |
0.294 |
0.100 |
7.416 |
40.680 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
77.1 ± 0.8 |
338.1 ± 1.2 |
2.12 ± 0.18 |
| VC |
78.2 ± 0.5 |
283.0 ± 1.1 |
2.12 ± 0.18 |
| MX1 |
78.9 ± 0.5 |
284.4 ± 1.1 |
2.12 ± 0.18 |
| MX2 |
78.8 ± 0.5 |
284.8 ± 1.1 |
2.12 ± 0.18 |
| MX3 |
78.8 ± 0.5 |
285.1 ± 1.1 |
2.12 ± 0.18 |
| RH08 |
78.7 ± 0.4 |
281.4 ± 1.1 |
2.12 ± 0.18 |
| RH09 |
88.9 ± 0.4 |
46.5 ± 0.6 |
2.12 ± 0.18 |
| RH10 |
89.6 ± 0.4 |
41.2 ± 2.9 |
2.12 ± 0.18 |
| Average |
81.1 |
230.6 |
2.12 |
| Median |
78.8 |
284.4 |
2.12 |
| Deviation |
5.1 |
116.8 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
74.0 ± 0.7 |
3.4 ± 0.1 |
5.3 ± 0.1 |
30.8 ± 0.6 |
21.55 ± 0.44 |
2.41 ± 0.04 |
| VC |
85.6 ± 0.7 |
3.1 ± 0.1 |
4.8 ± 0.1 |
30.8 ± 0.6 |
27.29 ± 0.48 |
2.78 ± 0.04 |
| MX1 |
85.6 ± 0.7 |
3.0 ± 0.1 |
4.6 ± 0.1 |
30.8 ± 0.6 |
28.92 ± 0.50 |
2.78 ± 0.04 |
| MX2 |
85.6 ± 0.7 |
3.0 ± 0.1 |
4.6 ± 0.1 |
30.8 ± 0.6 |
28.80 ± 0.50 |
2.78 ± 0.04 |
| MX3 |
85.6 ± 0.7 |
3.0 ± 0.1 |
4.6 ± 0.1 |
30.8 ± 0.6 |
28.71 ± 0.50 |
2.78 ± 0.04 |
| RH8 |
85.7 ± 0.7 |
3.0 ± 0.1 |
4.6 ± 0.1 |
30.8 ± 0.6 |
28.53 ± 0.50 |
2.78 ± 0.04 |
| RH9 |
54.9 ± 0.4 |
0.3 ± 0.0 |
0.4 ± 0.0 |
31.0 ± 0.6 |
190.07 ± 2.33 |
1.77 ± 0.02 |
| RH10 |
53.5 ± 0.4 |
0.1 ± 0.0 |
0.2 ± 0.0 |
31.0 ± 0.6 |
509.64 ± 6.14 |
1.73 ± 0.02 |
| Average |
76.3 |
2.4 |
3.6 |
30.8 |
107.9 |
2.5 |
| Median |
85.6 |
3.0 |
4.6 |
30.8 |
28.8 |
2.8 |
| Deviation |
14.2 |
1.3 |
2.1 |
0.1 |
172.0 |
0.5 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
35.9 ± 1.7 |
4.8 ± 0.1 |
7.8 ± 0.5 |
43.8 ± 1.3 |
7.52 ± 0.41 |
0.82 ± 0.06 |
| VC |
41.5 ± 1.0 |
4.4 ± 0.1 |
7.2 ± 0.4 |
43.8 ± 1.3 |
9.53 ± 0.30 |
0.95 ± 0.05 |
| MX1 |
41.6 ± 1.0 |
4.1 ± 0.1 |
6.8 ± 0.4 |
43.9 ± 1.3 |
10.10 ± 0.32 |
0.95 ± 0.05 |
| MX2 |
41.5 ± 1.0 |
4.1 ± 0.1 |
6.8 ± 0.4 |
43.9 ± 1.3 |
10.06 ± 0.32 |
0.95 ± 0.05 |
| MX3 |
41.5 ± 1.0 |
4.1 ± 0.1 |
6.8 ± 0.4 |
43.9 ± 1.3 |
10.03 ± 0.32 |
0.95 ± 0.05 |
| RH8 |
41.6 ± 1.0 |
4.2 ± 0.1 |
6.9 ± 0.4 |
43.9 ± 1.3 |
9.98 ± 0.31 |
0.95 ± 0.04 |
| RH9 |
26.5 ± 1.2 |
0.4 ± 0.0 |
0.7 ± 0.0 |
44.1 ± 1.3 |
65.99 ± 2.85 |
0.60 ± 0.03 |
| RH10 |
25.8 ± 1.2 |
0.1 ± 0.0 |
0.2 ± 0.0 |
44.1 ± 1.3 |
176.53 ± 8.01 |
0.59 ± 0.03 |
| Average |
37.0 |
3.3 |
5.4 |
43.9 |
37.5 |
0.8 |
| Median |
41.5 |
4.1 |
6.8 |
43.9 |
10.1 |
0.9 |
| Deviation |
7.0 |
1.9 |
3.1 |
0.1 |
59.6 |
0.2 |
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)
| 
