Database: Wind Shock Analysis
Event ID: 20213040933
Observation time: 10/31/2021 304.39811 0933 [UT]
|
|
General
Information (About, Top)
| Year |
2021 |
| Fractional day of year |
304.398108 |
| Arrival time of shock [seconds of day] |
34396.5 ± 20.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
196.301 |
| Y GSE location of spacecraft [Re] |
1.066 |
| Z GSE location of spacecraft [Re] |
-10.662 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0250 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0263 |
| Minimum chisq/dof for RH8,RH9,RH10 |
9.70, 17.60, 18.10 |
Event added to database
|
Thu Jan 13 11:28:06 2022
|
Event last processed
|
Fri Jan 14 11:51:45 2022
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
36.429 ± 6.311
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-367.1 ± 1.6 |
-406.9 ± 7.1 |
| Vy GSE [km/s] |
34.5 ± 1.6 |
-3.6 ± 7.3 |
| Vz GSE [km/s] |
-37.9 ± 3.0 |
-85.4 ± 5.9 |
| Wi [km/s] |
31.6 ± 0.9 |
42.2 ± 1.4 |
| We [km/s] |
998.9 ± 27.7 |
1335.8 ± 45.2 |
| Ni [n/cc] |
6.8 ± 0.4 |
13.8 ± 1.2 |
| Bx GSE [nT] |
-3.9 ± 0.2 |
-7.7 ± 0.6 |
| By GSE [nT] |
-0.3 ± 0.4 |
1.0 ± 1.2 |
| Bz GSE [nT] |
2.0 ± 0.5 |
6.3 ± 1.1 |
Plasma Beta
|
0.733 ± 0.719
|
0.505 ± 0.522
|
Sound Speed [km/s]
|
40.78 ± 1.13
|
54.53 ± 1.85
|
Alfven Speed [km/s]
|
37.00 ± 1.57
|
59.64 ± 2.54
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.827 ± 0.279 |
-0.444 ± 0.495 |
-0.346 ± 0.332 |
-20.27 ± 16.57 |
208.23 ± 34.14 |
| VC |
-0.550 ± 0.086 |
-0.526 ± 0.088 |
-0.649 ± 0.537 |
-40.46 ± 4.98 |
223.69 ± 8.23 |
| MX1 |
-0.732 ± 0.074 |
-0.496 ± 0.092 |
-0.468 ± 0.430 |
-27.89 ± 6.63 |
214.10 ± 6.80 |
| MX2 |
-0.729 ± 0.068 |
-0.487 ± 0.083 |
-0.480 ± 0.439 |
-28.71 ± 6.44 |
213.76 ± 6.07 |
| MX3 |
-0.728 ± 0.067 |
-0.482 ± 0.079 |
-0.488 ± 0.445 |
-29.24 ± 6.55 |
213.51 ± 5.77 |
| RH08 |
-0.801 ± 0.009 |
-0.349 ± 0.015 |
-0.486 ± 0.444 |
-29.08 ± 0.91 |
203.57 ± 1.04 |
| RH09 |
-0.960 ± 0.019 |
-0.059 ± 0.069 |
-0.274 ± 0.267 |
-15.89 ± 3.91 |
183.51 ± 4.13 |
| RH10 |
-0.961 ± 0.019 |
-0.042 ± 0.069 |
-0.274 ± 0.267 |
-15.89 ± 3.92 |
182.51 ± 4.11 |
| Average |
-0.786 |
-0.361 |
-0.433 |
-25.929 |
205.359 |
| Median |
-0.732 |
-0.444 |
-0.468 |
-27.895 |
213.506 |
| Deviation |
0.135 |
0.198 |
0.128 |
8.259 |
14.931 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
52.2 ± 8.7 |
433.9 ± 2.3 |
2.02 ± 0.24 |
| VC |
76.3 ± 8.7 |
352.7 ± 2.6 |
2.02 ± 0.24 |
| MX1 |
61.4 ± 8.7 |
409.7 ± 2.4 |
2.02 ± 0.24 |
| MX2 |
62.0 ± 8.7 |
409.9 ± 2.4 |
2.02 ± 0.24 |
| MX3 |
62.4 ± 8.7 |
410.0 ± 2.4 |
2.02 ± 0.24 |
| RH08 |
58.7 ± 8.5 |
437.7 ± 2.2 |
2.02 ± 0.24 |
| RH09 |
42.8 ± 7.4 |
465.5 ± 1.7 |
2.02 ± 0.24 |
| RH10 |
42.9 ± 7.3 |
464.7 ± 12.4 |
2.02 ± 0.24 |
| Average |
57.3 |
423.0 |
2.02 |
| Median |
61.4 |
433.9 |
2.02 |
| Deviation |
11.1 |
36.5 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
132.7 ± 2.1 |
17.7 ± 0.5 |
22.7 ± 1.0 |
52.2 ± 1.2 |
7.49 ± 0.27 |
2.55 ± 0.08 |
| VC |
144.3 ± 2.7 |
6.5 ± 0.2 |
8.8 ± 0.4 |
54.7 ± 1.3 |
22.07 ± 0.87 |
2.64 ± 0.10 |
| MX1 |
140.5 ± 2.3 |
13.5 ± 0.3 |
17.7 ± 0.8 |
53.4 ± 1.3 |
10.41 ± 0.39 |
2.63 ± 0.09 |
| MX2 |
140.8 ± 2.3 |
13.2 ± 0.3 |
17.4 ± 0.7 |
53.5 ± 1.3 |
10.64 ± 0.40 |
2.64 ± 0.09 |
| MX3 |
141.0 ± 2.3 |
13.1 ± 0.3 |
17.2 ± 0.7 |
53.5 ± 1.3 |
10.79 ± 0.40 |
2.64 ± 0.09 |
| RH8 |
137.3 ± 2.3 |
14.8 ± 0.4 |
19.2 ± 0.8 |
53.1 ± 1.3 |
9.29 ± 0.34 |
2.59 ± 0.09 |
| RH9 |
104.8 ± 1.9 |
21.9 ± 0.6 |
27.1 ± 1.2 |
50.6 ± 1.2 |
4.79 ± 0.16 |
2.07 ± 0.06 |
| RH10 |
103.1 ± 1.9 |
21.9 ± 0.6 |
27.1 ± 1.2 |
50.6 ± 1.2 |
4.72 ± 0.16 |
2.04 ± 0.06 |
| Average |
130.6 |
15.3 |
19.6 |
52.7 |
10.0 |
2.5 |
| Median |
140.5 |
14.8 |
19.2 |
53.4 |
10.4 |
2.6 |
| Deviation |
16.8 |
5.1 |
6.0 |
1.5 |
5.5 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
66.4 ± 5.4 |
26.0 ± 0.6 |
36.5 ± 1.6 |
76.5 ± 1.8 |
2.56 ± 0.24 |
0.87 ± 0.08 |
| VC |
71.6 ± 4.9 |
9.6 ± 0.2 |
14.2 ± 0.6 |
80.3 ± 1.9 |
7.46 ± 0.65 |
0.89 ± 0.08 |
| MX1 |
70.2 ± 5.1 |
19.8 ± 0.4 |
28.5 ± 1.2 |
78.4 ± 1.9 |
3.55 ± 0.31 |
0.90 ± 0.08 |
| MX2 |
70.4 ± 5.1 |
19.4 ± 0.4 |
28.0 ± 1.2 |
78.5 ± 1.9 |
3.63 ± 0.32 |
0.90 ± 0.08 |
| MX3 |
70.5 ± 5.1 |
19.2 ± 0.4 |
27.7 ± 1.2 |
78.5 ± 1.9 |
3.68 ± 0.32 |
0.90 ± 0.08 |
| RH8 |
69.0 ± 5.4 |
21.7 ± 0.5 |
31.0 ± 1.3 |
77.9 ± 1.9 |
3.18 ± 0.29 |
0.89 ± 0.08 |
| RH9 |
51.4 ± 6.7 |
32.1 ± 0.7 |
43.7 ± 1.9 |
74.2 ± 1.8 |
1.60 ± 0.21 |
0.69 ± 0.09 |
| RH10 |
50.2 ± 6.7 |
32.1 ± 0.7 |
43.7 ± 1.9 |
74.2 ± 1.8 |
1.57 ± 0.21 |
0.68 ± 0.09 |
| Average |
65.0 |
22.5 |
31.7 |
77.3 |
3.4 |
0.8 |
| Median |
70.2 |
21.7 |
31.0 |
78.4 |
3.5 |
0.9 |
| Deviation |
8.9 |
7.5 |
9.7 |
2.2 |
1.9 |
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 13:39:25 2022
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
