Database: Wind Shock Analysis
Event ID: 20201820110
Observation time: 06/30/2020 182.04929 0110 [UT]
|
|
General
Information (About, Top)
| Year |
2020 |
| Fractional day of year |
182.049288 |
| Arrival time of shock [seconds of day] |
4258.5 ± 60.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
228.738 |
| Y GSE location of spacecraft [Re] |
103.018 |
| Z GSE location of spacecraft [Re] |
-4.876 |
| Upstream plasma points selected for analysis |
0006 |
| Upstream field points selected for analysis |
0202 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0146 |
| Minimum chisq/dof for RH8,RH9,RH10 |
10.74, 26.22, 28.22 |
Event added to database
|
Wed Jan 12 11:59:13 2022
|
Event last processed
|
Fri Jan 14 11:10:37 2022
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
54.062 ± 10.607
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-339.1 ± 1.0 |
-367.7 ± 1.3 |
| Vy GSE [km/s] |
12.0 ± 2.9 |
10.7 ± 3.7 |
| Vz GSE [km/s] |
0.6 ± 3.1 |
28.7 ± 3.9 |
| Wi [km/s] |
24.7 ± 0.8 |
33.3 ± 1.5 |
| We [km/s] |
781.9 ± 24.0 |
1053.2 ± 46.6 |
| Ni [n/cc] |
5.4 ± 0.1 |
9.7 ± 0.3 |
| Bx GSE [nT] |
-0.4 ± 0.4 |
0.6 ± 0.9 |
| By GSE [nT] |
1.7 ± 1.0 |
3.5 ± 0.7 |
| Bz GSE [nT] |
-0.8 ± 0.7 |
0.3 ± 1.1 |
Plasma Beta
|
1.401 ± 1.412
|
1.561 ± 1.747
|
Sound Speed [km/s]
|
31.92 ± 0.98
|
43.00 ± 1.90
|
Alfven Speed [km/s]
|
21.46 ± 2.59
|
26.90 ± 1.91
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.978 ± 0.213 |
0.188 ± 1.058 |
0.094 ± 0.094 |
5.39 ± 38.90 |
169.10 ± 61.98 |
| VC |
-0.721 ± 0.065 |
-0.034 ± 0.106 |
0.693 ± 0.552 |
43.83 ± 5.38 |
182.67 ± 8.40 |
| MX1 |
-0.858 ± 0.159 |
0.199 ± 0.323 |
0.473 ± 0.434 |
28.24 ± 17.54 |
166.96 ± 21.44 |
| MX2 |
-0.752 ± 0.083 |
0.023 ± 0.270 |
0.659 ± 0.541 |
41.25 ± 7.21 |
178.23 ± 20.60 |
| MX3 |
-0.728 ± 0.120 |
0.022 ± 0.215 |
0.686 ± 0.550 |
43.28 ± 10.03 |
178.31 ± 16.96 |
| RH08 |
-0.810 ± 0.015 |
0.007 ± 0.025 |
0.587 ± 0.508 |
35.92 ± 1.49 |
179.50 ± 1.79 |
| RH09 |
-0.978 ± 0.015 |
-0.182 ± 0.069 |
-0.106 ± 0.106 |
-6.09 ± 4.02 |
190.53 ± 4.03 |
| RH10 |
-0.979 ± 0.014 |
-0.182 ± 0.068 |
-0.095 ± 0.095 |
-5.45 ± 4.02 |
190.53 ± 3.99 |
| Average |
-0.850 |
0.005 |
0.374 |
23.295 |
179.478 |
| Median |
-0.810 |
0.022 |
0.587 |
35.916 |
179.499 |
| Deviation |
0.115 |
0.143 |
0.351 |
21.836 |
8.635 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
72.8 ± 14.7 |
401.5 ± 1.1 |
1.84 ± 0.06 |
| VC |
80.9 ± 20.7 |
333.1 ± 1.0 |
1.84 ± 0.06 |
| MX1 |
82.1 ± 21.6 |
377.7 ± 0.9 |
1.84 ± 0.06 |
| MX2 |
84.5 ± 21.3 |
344.1 ± 0.9 |
1.84 ± 0.06 |
| MX3 |
83.5 ± 21.7 |
335.8 ± 1.0 |
1.84 ± 0.06 |
| RH08 |
86.2 ± 19.6 |
363.8 ± 0.9 |
1.84 ± 0.06 |
| RH09 |
85.2 ± 5.7 |
385.6 ± 0.9 |
1.84 ± 0.06 |
| RH10 |
85.4 ± 5.8 |
386.8 ± 4.1 |
1.84 ± 0.06 |
| Average |
82.6 |
366.0 |
1.84 |
| Median |
84.5 |
377.7 |
1.84 |
| Deviation |
4.4 |
25.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
67.6 ± 1.1 |
5.3 ± 0.4 |
6.4 ± 0.8 |
38.2 ± 0.9 |
12.84 ± 1.17 |
1.77 ± 0.06 |
| VC |
88.7 ± 2.4 |
2.8 ± 0.2 |
3.4 ± 0.4 |
38.4 ± 0.9 |
31.69 ± 2.86 |
2.31 ± 0.09 |
| MX1 |
84.0 ± 2.1 |
2.5 ± 0.2 |
3.0 ± 0.4 |
38.5 ± 0.9 |
34.44 ± 3.08 |
2.18 ± 0.08 |
| MX2 |
88.6 ± 2.4 |
1.7 ± 0.1 |
2.0 ± 0.2 |
38.5 ± 0.9 |
52.76 ± 4.74 |
2.30 ± 0.09 |
| MX3 |
88.4 ± 2.5 |
2.0 ± 0.2 |
2.4 ± 0.3 |
38.5 ± 0.9 |
44.62 ± 4.01 |
2.30 ± 0.09 |
| RH8 |
88.8 ± 2.2 |
1.2 ± 0.1 |
1.4 ± 0.2 |
38.5 ± 0.9 |
76.16 ± 6.83 |
2.31 ± 0.09 |
| RH9 |
56.3 ± 1.3 |
1.5 ± 0.1 |
1.8 ± 0.2 |
38.5 ± 0.9 |
38.21 ± 3.70 |
1.46 ± 0.05 |
| RH10 |
57.1 ± 1.3 |
1.4 ± 0.1 |
1.7 ± 0.2 |
38.5 ± 0.9 |
40.75 ± 3.93 |
1.48 ± 0.06 |
| Average |
77.4 |
2.3 |
2.8 |
38.4 |
41.4 |
2.0 |
| Median |
88.4 |
2.0 |
2.4 |
38.5 |
40.7 |
2.3 |
| Deviation |
14.6 |
1.3 |
1.6 |
0.1 |
18.2 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
37.2 ± 1.6 |
6.8 ± 0.3 |
8.0 ± 0.6 |
50.3 ± 1.4 |
5.48 ± 0.36 |
0.74 ± 0.02 |
| VC |
48.6 ± 2.0 |
3.6 ± 0.2 |
4.3 ± 0.3 |
50.6 ± 1.4 |
13.45 ± 0.81 |
0.96 ± 0.06 |
| MX1 |
46.4 ± 0.4 |
3.2 ± 0.1 |
3.7 ± 0.3 |
50.7 ± 1.4 |
14.74 ± 0.71 |
0.92 ± 0.03 |
| MX2 |
48.6 ± 1.6 |
2.2 ± 0.1 |
2.6 ± 0.2 |
50.7 ± 1.4 |
22.43 ± 1.26 |
0.96 ± 0.06 |
| MX3 |
48.3 ± 1.7 |
2.6 ± 0.1 |
3.0 ± 0.2 |
50.7 ± 1.4 |
18.91 ± 1.09 |
0.95 ± 0.06 |
| RH8 |
49.1 ± 1.3 |
1.5 ± 0.1 |
1.8 ± 0.1 |
50.7 ± 1.4 |
32.65 ± 1.74 |
0.97 ± 0.05 |
| RH9 |
31.1 ± 1.1 |
1.9 ± 0.1 |
2.3 ± 0.2 |
50.7 ± 1.4 |
16.33 ± 0.99 |
0.61 ± 0.02 |
| RH10 |
31.5 ± 1.0 |
1.8 ± 0.1 |
2.1 ± 0.2 |
50.7 ± 1.4 |
17.43 ± 1.04 |
0.62 ± 0.02 |
| Average |
42.6 |
2.9 |
3.5 |
50.6 |
17.7 |
0.8 |
| Median |
48.3 |
2.6 |
3.0 |
50.7 |
17.4 |
1.0 |
| Deviation |
8.0 |
1.7 |
2.0 |
0.1 |
7.8 |
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 Fri Jan 14 13:41:40 2022
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
