Database: Wind Shock Analysis
Event ID: 20211320556
Observation time: 05/12/2021 132.24727 0556 [UT]
|
|
General
Information (About, Top)
| Year |
2021 |
| Fractional day of year |
132.247274 |
| Arrival time of shock [seconds of day] |
21364.5 ± 40.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
201.131 |
| Y GSE location of spacecraft [Re] |
33.397 |
| Z GSE location of spacecraft [Re] |
-10.209 |
| Upstream plasma points selected for analysis |
0006 |
| Upstream field points selected for analysis |
0208 |
| Downstream plasma points selected for analysis |
0003
|
| Downstream field points selected for analysis |
0099 |
| Minimum chisq/dof for RH8,RH9,RH10 |
8.09, 74.00, 99.52 |
Event added to database
|
Wed Jan 12 15:56:18 2022
|
Event last processed
|
Fri Jan 14 11:32:26 2022
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
43.887 ± 1.720
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-319.7 ± 0.6 |
-439.6 ± 1.8 |
| Vy GSE [km/s] |
-7.9 ± 0.5 |
-4.0 ± 2.6 |
| Vz GSE [km/s] |
-14.2 ± 2.5 |
18.3 ± 5.9 |
| Wi [km/s] |
18.5 ± 0.7 |
57.8 ± 0.6 |
| We [km/s] |
586.6 ± 23.7 |
1828.6 ± 18.6 |
| Ni [n/cc] |
7.4 ± 0.6 |
29.3 ± 2.5 |
| Bx GSE [nT] |
-3.1 ± 0.2 |
-4.5 ± 0.6 |
| By GSE [nT] |
0.8 ± 0.1 |
4.9 ± 0.9 |
| Bz GSE [nT] |
-2.2 ± 0.2 |
-6.9 ± 0.9 |
Plasma Beta
|
0.367 ± 0.359
|
2.235 ± 2.280
|
Sound Speed [km/s]
|
23.95 ± 0.97
|
74.65 ± 0.76
|
Alfven Speed [km/s]
|
30.88 ± 2.20
|
38.93 ± 3.43
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.937 ± 0.033 |
-0.348 ± 0.086 |
-0.043 ± 0.043 |
-2.46 ± 10.71 |
200.38 ± 5.24 |
| VC |
-0.965 ± 0.012 |
0.031 ± 0.018 |
0.262 ± 0.256 |
15.18 ± 2.61 |
178.16 ± 1.09 |
| MX1 |
-0.952 ± 0.022 |
0.021 ± 0.014 |
0.304 ± 0.295 |
17.72 ± 4.13 |
178.77 ± 0.85 |
| MX2 |
-0.954 ± 0.020 |
0.012 ± 0.019 |
0.299 ± 0.290 |
17.39 ± 3.77 |
179.28 ± 1.13 |
| MX3 |
-0.955 ± 0.019 |
0.008 ± 0.022 |
0.297 ± 0.288 |
17.25 ± 3.64 |
179.50 ± 1.31 |
| RH08 |
-0.974 ± 0.003 |
0.060 ± 0.014 |
0.218 ± 0.214 |
12.58 ± 0.83 |
176.49 ± 0.80 |
| RH09 |
-0.593 ± 0.056 |
0.527 ± 0.059 |
0.609 ± 0.519 |
37.51 ± 3.89 |
138.38 ± 5.09 |
| RH10 |
-0.673 ± 0.052 |
0.464 ± 0.062 |
0.575 ± 0.501 |
35.13 ± 3.99 |
145.40 ± 4.90 |
| Average |
-0.875 |
0.097 |
0.315 |
18.788 |
172.046 |
| Median |
-0.952 |
0.031 |
0.299 |
17.389 |
178.766 |
| Deviation |
0.151 |
0.279 |
0.205 |
12.683 |
20.199 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
45.6 ± 1.3 |
450.2 ± 1.4 |
4.15 ± 0.57 |
| VC |
51.1 ± 2.2 |
471.1 ± 1.4 |
4.15 ± 0.57 |
| MX1 |
53.7 ± 2.2 |
466.3 ± 1.5 |
4.15 ± 0.57 |
| MX2 |
53.5 ± 2.2 |
467.0 ± 1.5 |
4.15 ± 0.57 |
| MX3 |
53.5 ± 2.2 |
467.3 ± 1.5 |
4.15 ± 0.57 |
| RH08 |
48.2 ± 2.2 |
474.6 ± 1.4 |
4.15 ± 0.57 |
| RH09 |
76.3 ± 2.5 |
300.8 ± 1.6 |
4.15 ± 0.57 |
| RH10 |
72.2 ± 2.5 |
338.2 ± 6.5 |
4.15 ± 0.57 |
| Average |
56.8 |
429.4 |
4.15 |
| Median |
53.5 |
467.0 |
4.15 |
| Deviation |
11.2 |
69.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
147.4 ± 0.8 |
14.2 ± 0.4 |
21.6 ± 1.5 |
36.4 ± 1.7 |
10.40 ± 0.30 |
4.05 ± 0.18 |
| VC |
166.6 ± 0.6 |
12.5 ± 0.4 |
19.4 ± 1.4 |
37.1 ± 1.7 |
13.34 ± 0.38 |
4.50 ± 0.19 |
| MX1 |
166.3 ± 0.7 |
11.7 ± 0.4 |
18.3 ± 1.3 |
37.3 ± 1.7 |
14.22 ± 0.40 |
4.46 ± 0.18 |
| MX2 |
166.2 ± 0.7 |
11.8 ± 0.4 |
18.4 ± 1.3 |
37.3 ± 1.7 |
14.14 ± 0.40 |
4.46 ± 0.18 |
| MX3 |
166.2 ± 0.7 |
11.8 ± 0.4 |
18.4 ± 1.3 |
37.3 ± 1.7 |
14.11 ± 0.40 |
4.47 ± 0.18 |
| RH8 |
166.7 ± 0.6 |
13.4 ± 0.4 |
20.6 ± 1.5 |
36.7 ± 1.7 |
12.47 ± 0.35 |
4.54 ± 0.19 |
| RH9 |
123.9 ± 1.5 |
4.5 ± 0.1 |
7.3 ± 0.5 |
38.8 ± 1.7 |
27.63 ± 0.81 |
3.19 ± 0.12 |
| RH10 |
134.8 ± 1.4 |
5.9 ± 0.2 |
9.5 ± 0.7 |
38.7 ± 1.7 |
23.06 ± 0.67 |
3.49 ± 0.14 |
| Average |
154.8 |
10.7 |
16.7 |
37.5 |
16.2 |
4.1 |
| Median |
166.2 |
11.8 |
18.4 |
37.3 |
14.1 |
4.5 |
| Deviation |
17.2 |
3.5 |
5.3 |
0.9 |
5.9 |
0.5 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
37.9 ± 2.7 |
25.3 ± 1.9 |
27.2 ± 2.4 |
80.3 ± 1.8 |
1.50 ± 0.06 |
0.47 ± 0.02 |
| VC |
42.4 ± 0.4 |
22.5 ± 1.7 |
24.4 ± 2.2 |
81.2 ± 1.9 |
1.89 ± 0.14 |
0.52 ± 0.01 |
| MX1 |
42.1 ± 0.4 |
21.1 ± 1.6 |
23.0 ± 2.0 |
81.5 ± 1.9 |
2.01 ± 0.16 |
0.52 ± 0.02 |
| MX2 |
42.1 ± 0.4 |
21.2 ± 1.6 |
23.1 ± 2.0 |
81.5 ± 1.9 |
2.00 ± 0.15 |
0.52 ± 0.01 |
| MX3 |
42.1 ± 0.4 |
21.2 ± 1.6 |
23.2 ± 2.0 |
81.5 ± 1.9 |
1.99 ± 0.15 |
0.52 ± 0.01 |
| RH8 |
42.6 ± 0.4 |
24.0 ± 1.8 |
25.9 ± 2.3 |
80.7 ± 1.8 |
1.78 ± 0.12 |
0.53 ± 0.01 |
| RH9 |
31.0 ± 3.5 |
8.2 ± 0.6 |
9.2 ± 0.8 |
83.8 ± 2.2 |
3.82 ± 0.69 |
0.37 ± 0.05 |
| RH10 |
33.6 ± 3.0 |
10.7 ± 0.8 |
11.9 ± 1.0 |
83.5 ± 2.2 |
3.18 ± 0.51 |
0.40 ± 0.05 |
| Average |
39.2 |
19.3 |
21.0 |
81.8 |
2.3 |
0.5 |
| Median |
42.1 |
21.2 |
23.2 |
81.5 |
2.0 |
0.5 |
| Deviation |
4.6 |
6.3 |
6.7 |
1.3 |
0.8 |
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 Jan 14 13:39:55 2022
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
