Database: Wind Shock Analysis
Event ID: 20181970433
Observation time: 07/16/2018 197.18970 0433 [UT]
|
|
General
Information (About, Top)
| Year |
2018 |
| Fractional day of year |
197.189705 |
| Arrival time of shock [seconds of day] |
16390.5 ± 20.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
224.766 |
| Y GSE location of spacecraft [Re] |
103.220 |
| Z GSE location of spacecraft [Re] |
-4.603 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0179 |
| Downstream plasma points selected for analysis |
0005
|
| Downstream field points selected for analysis |
0163 |
| Minimum chisq/dof for RH8,RH9,RH10 |
11.78, 35.00, 41.08 |
Event added to database
|
Tue Dec 25 19:41:00 2018
|
Event last processed
|
Tue Dec 10 18:45:21 2019
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
64.627 ± 0.331
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-319.4 ± 0.5 |
-335.6 ± 2.2 |
| Vy GSE [km/s] |
-14.6 ± 0.2 |
-22.8 ± 0.8 |
| Vz GSE [km/s] |
-9.6 ± 0.7 |
-9.0 ± 1.9 |
| Wi [km/s] |
11.2 ± 0.1 |
12.4 ± 0.2 |
| We [km/s] |
353.2 ± 3.9 |
391.3 ± 5.8 |
| Ni [n/cc] |
12.1 ± 0.3 |
16.8 ± 0.3 |
| Bx GSE [nT] |
2.4 ± 0.0 |
2.6 ± 0.1 |
| By GSE [nT] |
-3.1 ± 0.0 |
-5.4 ± 0.2 |
| Bz GSE [nT] |
-1.5 ± 0.1 |
-1.3 ± 0.2 |
Plasma Beta
|
0.178 ± 0.176
|
0.142 ± 0.141
|
Sound Speed [km/s]
|
14.42 ± 0.16
|
15.97 ± 0.24
|
Alfven Speed [km/s]
|
26.50 ± 0.30
|
32.81 ± 0.17
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.760 ± 0.036 |
-0.027 ± 0.084 |
0.650 ± 0.538 |
40.52 ± 3.15 |
182.06 ± 6.34 |
| VC |
-0.891 ± 0.020 |
-0.453 ± 0.039 |
0.022 ± 0.022 |
1.27 ± 5.43 |
206.97 ± 2.49 |
| MX1 |
-0.983 ± 0.017 |
-0.090 ± 0.076 |
0.159 ± 0.158 |
9.15 ± 5.48 |
185.24 ± 4.43 |
| MX2 |
-0.990 ± 0.012 |
-0.097 ± 0.073 |
0.098 ± 0.098 |
5.64 ± 5.27 |
185.58 ± 4.23 |
| MX3 |
-0.994 ± 0.007 |
-0.107 ± 0.069 |
-0.007 ± 0.007 |
-0.40 ± 5.24 |
186.14 ± 3.96 |
| RH08 |
-0.997 ± 0.001 |
-0.079 ± 0.013 |
-0.006 ± 0.006 |
-0.32 ± 1.11 |
184.51 ± 0.73 |
| RH09 |
-0.714 ± 0.055 |
-0.044 ± 0.033 |
-0.698 ± 0.553 |
-44.29 ± 4.54 |
183.51 ± 2.60 |
| RH10 |
-0.784 ± 0.046 |
-0.034 ± 0.055 |
-0.620 ± 0.525 |
-38.32 ± 4.29 |
182.51 ± 4.04 |
| Average |
-0.889 |
-0.116 |
-0.050 |
-3.344 |
187.065 |
| Median |
-0.891 |
-0.079 |
0.022 |
1.269 |
185.238 |
| Deviation |
0.120 |
0.139 |
0.433 |
26.994 |
8.171 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
49.6 ± 1.0 |
281.2 ± 1.6 |
1.40 ± 0.05 |
| VC |
79.5 ± 0.8 |
354.1 ± 1.3 |
1.40 ± 0.05 |
| MX1 |
56.5 ± 0.8 |
372.2 ± 1.4 |
1.40 ± 0.05 |
| MX2 |
58.0 ± 0.7 |
376.2 ± 1.4 |
1.40 ± 0.05 |
| MX3 |
60.9 ± 0.7 |
379.1 ± 1.3 |
1.40 ± 0.05 |
| RH08 |
59.4 ± 0.7 |
378.9 ± 1.3 |
1.40 ± 0.05 |
| RH09 |
82.9 ± 0.7 |
275.5 ± 0.9 |
1.40 ± 0.05 |
| RH10 |
78.6 ± 0.7 |
300.5 ± 4.3 |
1.40 ± 0.05 |
| Average |
65.7 |
339.7 |
1.40 |
| Median |
60.9 |
372.2 |
1.40 |
| Deviation |
12.6 |
45.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
44.4 ± 0.2 |
8.6 ± 0.1 |
17.2 ± 0.2 |
28.9 ± 0.3 |
5.18 ± 0.05 |
1.53 ± 0.01 |
| VC |
63.1 ± 0.4 |
2.3 ± 0.0 |
4.8 ± 0.1 |
30.1 ± 0.3 |
27.18 ± 0.28 |
2.10 ± 0.03 |
| MX1 |
58.3 ± 0.4 |
7.2 ± 0.1 |
14.6 ± 0.2 |
29.3 ± 0.3 |
8.10 ± 0.09 |
1.99 ± 0.03 |
| MX2 |
59.4 ± 0.4 |
6.9 ± 0.1 |
14.0 ± 0.2 |
29.4 ± 0.3 |
8.62 ± 0.10 |
2.02 ± 0.03 |
| MX3 |
59.9 ± 0.5 |
6.3 ± 0.1 |
12.9 ± 0.1 |
29.5 ± 0.3 |
9.51 ± 0.12 |
2.03 ± 0.03 |
| RH8 |
59.3 ± 0.5 |
6.6 ± 0.1 |
13.5 ± 0.2 |
29.4 ± 0.3 |
8.97 ± 0.11 |
2.01 ± 0.03 |
| RH9 |
40.0 ± 0.8 |
1.6 ± 0.0 |
3.3 ± 0.0 |
30.1 ± 0.3 |
25.52 ± 0.58 |
1.33 ± 0.04 |
| RH10 |
43.7 ± 0.8 |
2.5 ± 0.0 |
5.3 ± 0.1 |
30.1 ± 0.3 |
17.34 ± 0.36 |
1.45 ± 0.04 |
| Average |
53.5 |
5.2 |
10.7 |
29.6 |
13.8 |
1.8 |
| Median |
59.3 |
6.6 |
13.5 |
29.5 |
9.5 |
2.0 |
| Deviation |
9.1 |
2.7 |
5.3 |
0.4 |
8.5 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
31.5 ± 2.9 |
9.7 ± 0.1 |
21.3 ± 0.1 |
35.2 ± 0.2 |
3.26 ± 0.28 |
0.90 ± 0.08 |
| VC |
45.0 ± 2.3 |
2.6 ± 0.0 |
6.0 ± 0.0 |
36.4 ± 0.2 |
17.09 ± 0.79 |
1.24 ± 0.06 |
| MX1 |
41.6 ± 2.5 |
8.1 ± 0.1 |
18.1 ± 0.1 |
35.6 ± 0.2 |
5.12 ± 0.28 |
1.17 ± 0.07 |
| MX2 |
42.5 ± 2.4 |
7.8 ± 0.1 |
17.4 ± 0.1 |
35.6 ± 0.2 |
5.46 ± 0.28 |
1.19 ± 0.07 |
| MX3 |
43.0 ± 2.2 |
7.1 ± 0.1 |
16.0 ± 0.1 |
35.8 ± 0.2 |
6.03 ± 0.28 |
1.20 ± 0.06 |
| RH8 |
42.6 ± 2.2 |
7.5 ± 0.1 |
16.7 ± 0.1 |
35.7 ± 0.2 |
5.69 ± 0.26 |
1.19 ± 0.06 |
| RH9 |
28.5 ± 0.5 |
1.8 ± 0.0 |
4.1 ± 0.0 |
36.4 ± 0.2 |
16.03 ± 0.11 |
0.78 ± 0.01 |
| RH10 |
31.1 ± 0.7 |
2.9 ± 0.0 |
6.5 ± 0.0 |
36.4 ± 0.2 |
10.89 ± 0.15 |
0.86 ± 0.02 |
| Average |
38.2 |
5.9 |
13.2 |
35.9 |
8.7 |
1.1 |
| Median |
42.5 |
7.5 |
16.7 |
35.8 |
6.0 |
1.2 |
| Deviation |
6.6 |
3.0 |
6.6 |
0.5 |
5.3 |
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)
| 
