Database: Wind Shock Analysis
Event ID: 20202452156
Observation time: 09/01/2020 245.91432 2156 [UT]
|
|
General
Information (About, Top)
| Year |
2020 |
| Fractional day of year |
245.914323 |
| Arrival time of shock [seconds of day] |
78997.5 ± 30.0 |
| Shock type |
SR |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
252.050 |
| Y GSE location of spacecraft [Re] |
-66.745 |
| Z GSE location of spacecraft [Re] |
10.736 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0255 |
| Downstream plasma points selected for analysis |
0003
|
| Downstream field points selected for analysis |
0100 |
| Minimum chisq/dof for RH8,RH9,RH10 |
1.83, 2.11, 2.29 |
Event added to database
|
Wed Jan 12 12:31:35 2022
|
Event last processed
|
Fri Jan 14 11:15:16 2022
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
114.768 ± 4.786
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-587.6 ± 1.0 |
-512.0 ± 1.4 |
| Vy GSE [km/s] |
-1.4 ± 0.9 |
17.5 ± 0.3 |
| Vz GSE [km/s] |
34.2 ± 4.6 |
0.8 ± 2.1 |
| Wi [km/s] |
21.4 ± 1.4 |
50.3 ± 1.4 |
| We [km/s] |
675.7 ± 45.1 |
1591.3 ± 45.1 |
| Ni [n/cc] |
1.5 ± 0.1 |
2.6 ± 0.1 |
| Bx GSE [nT] |
4.4 ± 0.1 |
-0.7 ± 0.8 |
| By GSE [nT] |
1.1 ± 0.1 |
-0.3 ± 0.4 |
| Bz GSE [nT] |
-1.5 ± 0.3 |
0.6 ± 0.4 |
Plasma Beta
|
0.063 ± 0.066
|
48.055 ± 7.677
|
Sound Speed [km/s]
|
27.59 ± 1.84
|
64.97 ± 1.84
|
Alfven Speed [km/s]
|
85.97 ± 3.62
|
14.56 ± 8.90
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.489 ± 0.178 |
-0.138 ± 0.386 |
-0.861 ± 0.527 |
-59.46 ± 9.79 |
195.73 ± 44.95 |
| VC |
-0.892 ± 0.020 |
-0.224 ± 0.010 |
0.393 ± 0.371 |
23.14 ± 2.94 |
194.10 ± 0.57 |
| MX1 |
-0.359 ± 0.062 |
-0.111 ± 0.102 |
-0.927 ± 0.445 |
-67.94 ± 3.47 |
197.26 ± 16.07 |
| MX2 |
-0.708 ± 0.367 |
0.178 ± 0.701 |
-0.683 ± 0.549 |
-43.12 ± 27.90 |
165.90 ± 56.38 |
| MX3 |
-0.622 ± 0.409 |
0.358 ± 0.434 |
-0.696 ± 0.553 |
-44.09 ± 32.59 |
150.07 ± 35.61 |
| RH08 |
-0.264 ± 0.026 |
0.965 ± 0.007 |
-0.006 ± 0.006 |
-0.32 ± 3.71 |
105.29 ± 1.55 |
| RH09 |
-0.264 ± 0.030 |
0.965 ± 0.008 |
-0.006 ± 0.006 |
-0.32 ± 4.18 |
105.29 ± 1.81 |
| RH10 |
-0.280 ± 0.031 |
0.959 ± 0.010 |
-0.050 ± 0.050 |
-2.88 ± 4.26 |
106.30 ± 1.84 |
| Average |
-0.485 |
0.369 |
-0.354 |
-24.374 |
152.491 |
| Median |
-0.359 |
0.358 |
-0.050 |
-2.882 |
165.899 |
| Deviation |
0.236 |
0.525 |
0.493 |
33.263 |
42.054 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
77.6 ± 3.5 |
233.3 ± 1.0 |
1.68 ± 0.04 |
| VC |
5.1 ± 3.5 |
326.0 ± 4.6 |
1.68 ± 0.04 |
| MX1 |
86.1 ± 3.5 |
184.8 ± 1.3 |
1.68 ± 0.04 |
| MX2 |
66.5 ± 3.3 |
328.3 ± 1.1 |
1.68 ± 0.04 |
| MX3 |
74.1 ± 3.0 |
302.0 ± 0.8 |
1.68 ± 0.04 |
| RH08 |
89.1 ± 0.6 |
150.0 ± 0.3 |
1.68 ± 0.04 |
| RH09 |
89.1 ± 0.6 |
150.0 ± 0.3 |
1.68 ± 0.04 |
| RH10 |
88.9 ± 0.6 |
158.6 ± 1.2 |
1.68 ± 0.04 |
| Average |
72.0 |
229.1 |
1.68 |
| Median |
86.1 |
233.3 |
1.68 |
| Deviation |
28.3 |
79.3 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-24.8 ± 4.0 |
5.7 ± 0.3 |
18.5 ± 0.8 |
90.1 ± 3.2 |
-4.42 ± 0.94 |
-0.27 ± 0.04 |
| VC |
-211.8 ± 2.0 |
27.5 ± 1.8 |
85.6 ± 3.6 |
86.0 ± 3.6 |
-7.74 ± 0.47 |
-2.47 ± 0.12 |
| MX1 |
5.6 ± 4.3 |
1.8 ± 0.1 |
5.9 ± 0.2 |
90.3 ± 3.1 |
3.02 ± 2.38 |
0.06 ± 0.05 |
| MX2 |
-64.0 ± 3.0 |
10.5 ± 0.6 |
34.3 ± 1.4 |
89.7 ± 3.2 |
-6.11 ± 0.61 |
-0.71 ± 0.02 |
| MX3 |
-39.4 ± 3.0 |
7.2 ± 0.4 |
23.6 ± 1.0 |
90.0 ± 3.2 |
-5.50 ± 0.69 |
-0.44 ± 0.02 |
| RH8 |
-3.4 ± 0.7 |
0.4 ± 0.0 |
1.4 ± 0.1 |
90.3 ± 3.1 |
-7.90 ± 1.57 |
-0.04 ± 0.01 |
| RH9 |
-3.4 ± 0.7 |
0.4 ± 0.0 |
1.4 ± 0.1 |
90.3 ± 3.1 |
-7.90 ± 1.57 |
-0.04 ± 0.01 |
| RH10 |
-2.9 ± 0.6 |
0.5 ± 0.0 |
1.6 ± 0.1 |
90.3 ± 3.1 |
-5.89 ± 1.12 |
-0.03 ± 0.01 |
| Average |
-43.0 |
6.8 |
21.5 |
89.6 |
-5.3 |
-0.5 |
| Median |
-3.4 |
5.7 |
18.5 |
90.3 |
-5.9 |
-0.0 |
| Deviation |
72.1 |
9.2 |
28.6 |
1.5 |
3.6 |
0.8 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-14.0 ± 1.4 |
3.0 ± 1.8 |
3.1 ± 1.9 |
66.9 ± 1.3 |
-7.13 ± 6.27 |
-0.21 ± 0.02 |
| VC |
-127.0 ± 2.0 |
14.5 ± 8.9 |
14.5 ± 8.9 |
65.0 ± 1.8 |
-13.69 ± 12.27 |
-1.96 ± 0.07 |
| MX1 |
3.9 ± 1.6 |
1.0 ± 0.6 |
1.0 ± 0.6 |
67.0 ± 1.3 |
5.94 ± 5.22 |
0.06 ± 0.02 |
| MX2 |
-36.7 ± 1.1 |
5.6 ± 3.4 |
5.8 ± 3.5 |
66.7 ± 1.3 |
-10.02 ± 8.75 |
-0.55 ± 0.03 |
| MX3 |
-22.4 ± 1.2 |
3.8 ± 2.3 |
4.0 ± 2.4 |
66.8 ± 1.3 |
-8.90 ± 7.72 |
-0.34 ± 0.02 |
| RH8 |
-2.0 ± 0.4 |
0.2 ± 0.1 |
0.2 ± 0.1 |
67.0 ± 1.3 |
-11.65 ± 7.72 |
-0.03 ± 0.01 |
| RH9 |
-2.0 ± 0.4 |
0.2 ± 0.1 |
0.2 ± 0.1 |
67.0 ± 1.3 |
-11.65 ± 7.72 |
-0.03 ± 0.01 |
| RH10 |
-1.6 ± 0.4 |
0.3 ± 0.2 |
0.3 ± 0.2 |
67.0 ± 1.3 |
-8.20 ± 5.11 |
-0.02 ± 0.01 |
| Average |
-25.2 |
3.6 |
3.6 |
66.7 |
-8.2 |
-0.4 |
| Median |
-2.0 |
3.0 |
3.1 |
67.0 |
-8.9 |
-0.0 |
| Deviation |
43.3 |
4.8 |
4.8 |
0.7 |
6.1 |
0.7 |
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 13:41:36 2022
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
