Database: Wind Shock Analysis
Event ID: 20202931400
Observation time: 10/19/2020 293.58394 1400 [UT]
|
|
General
Information (About, Top)
| Year |
2020 |
| Fractional day of year |
293.583941 |
| Arrival time of shock [seconds of day] |
50452.5 ± 300.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
201.466 |
| Y GSE location of spacecraft [Re] |
-70.651 |
| Z GSE location of spacecraft [Re] |
-6.987 |
| Upstream plasma points selected for analysis |
0009 |
| Upstream field points selected for analysis |
0313 |
| Downstream plasma points selected for analysis |
0014
|
| Downstream field points selected for analysis |
0477 |
| Minimum chisq/dof for RH8,RH9,RH10 |
9.28, 28.16, 30.53 |
Event added to database
|
Wed Jan 12 12:51:18 2022
|
Event last processed
|
Fri Jan 14 11:18:31 2022
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
44.202 ± 9.070
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-346.4 ± 0.4 |
-388.0 ± 2.8 |
| Vy GSE [km/s] |
-1.2 ± 0.7 |
-3.6 ± 5.4 |
| Vz GSE [km/s] |
-10.0 ± 0.4 |
-49.9 ± 2.9 |
| Wi [km/s] |
27.6 ± 0.5 |
34.6 ± 2.1 |
| We [km/s] |
873.0 ± 17.2 |
1093.7 ± 67.2 |
| Ni [n/cc] |
7.9 ± 0.1 |
17.8 ± 0.9 |
| Bx GSE [nT] |
-3.2 ± 0.0 |
-6.3 ± 0.2 |
| By GSE [nT] |
0.4 ± 0.1 |
-0.2 ± 0.9 |
| Bz GSE [nT] |
-0.0 ± 0.1 |
4.5 ± 0.6 |
Plasma Beta
|
1.228 ± 1.218
|
0.738 ± 0.696
|
Sound Speed [km/s]
|
35.64 ± 0.70
|
44.65 ± 2.74
|
Alfven Speed [km/s]
|
24.93 ± 0.36
|
40.61 ± 2.43
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.828 ± 0.051 |
0.205 ± 0.119 |
-0.522 ± 0.469 |
-31.49 ± 4.75 |
166.06 ± 8.22 |
| VC |
-0.724 ± 0.032 |
-0.042 ± 0.095 |
-0.688 ± 0.551 |
-43.50 ± 2.62 |
183.36 ± 7.53 |
| MX1 |
-0.829 ± 0.031 |
-0.012 ± 0.098 |
-0.559 ± 0.492 |
-33.96 ± 3.16 |
180.84 ± 6.78 |
| MX2 |
-0.824 ± 0.028 |
-0.051 ± 0.081 |
-0.564 ± 0.495 |
-34.36 ± 2.81 |
183.57 ± 5.61 |
| MX3 |
-0.822 ± 0.027 |
-0.066 ± 0.075 |
-0.566 ± 0.496 |
-34.48 ± 2.70 |
184.61 ± 5.25 |
| RH08 |
-0.826 ± 0.004 |
0.007 ± 0.008 |
-0.564 ± 0.495 |
-34.35 ± 0.45 |
179.50 ± 0.58 |
| RH09 |
-0.603 ± 0.059 |
-0.710 ± 0.050 |
-0.363 ± 0.346 |
-21.29 ± 2.39 |
229.64 ± 4.66 |
| RH10 |
-0.640 ± 0.055 |
-0.677 ± 0.052 |
-0.363 ± 0.346 |
-21.29 ± 3.36 |
226.63 ± 4.46 |
| Average |
-0.762 |
-0.168 |
-0.524 |
-31.839 |
191.776 |
| Median |
-0.822 |
-0.042 |
-0.559 |
-33.961 |
183.573 |
| Deviation |
0.094 |
0.335 |
0.110 |
7.393 |
23.206 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
32.0 ± 1.3 |
389.8 ± 0.7 |
2.24 ± 0.12 |
| VC |
44.5 ± 1.3 |
360.2 ± 0.6 |
2.24 ± 0.12 |
| MX1 |
34.8 ± 1.4 |
394.1 ± 0.6 |
2.24 ± 0.12 |
| MX2 |
35.9 ± 1.4 |
392.5 ± 0.6 |
2.24 ± 0.12 |
| MX3 |
36.3 ± 1.4 |
391.7 ± 0.6 |
2.24 ± 0.12 |
| RH08 |
34.9 ± 1.3 |
392.9 ± 0.6 |
2.24 ± 0.12 |
| RH09 |
59.8 ± 1.7 |
287.7 ± 0.5 |
2.24 ± 0.12 |
| RH10 |
57.1 ± 1.7 |
303.0 ± 6.0 |
2.24 ± 0.12 |
| Average |
41.9 |
364.0 |
2.24 |
| Median |
36.3 |
391.7 |
2.24 |
| Deviation |
10.8 |
44.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
98.1 ± 0.3 |
19.3 ± 0.2 |
21.1 ± 0.3 |
39.0 ± 0.5 |
5.07 ± 0.05 |
2.52 ± 0.03 |
| VC |
102.4 ± 0.3 |
15.6 ± 0.1 |
17.8 ± 0.3 |
40.6 ± 0.5 |
6.57 ± 0.06 |
2.52 ± 0.03 |
| MX1 |
101.1 ± 0.3 |
18.5 ± 0.2 |
20.5 ± 0.3 |
39.4 ± 0.5 |
5.46 ± 0.05 |
2.57 ± 0.03 |
| MX2 |
101.3 ± 0.3 |
18.2 ± 0.2 |
20.2 ± 0.3 |
39.5 ± 0.5 |
5.56 ± 0.05 |
2.57 ± 0.03 |
| MX3 |
101.3 ± 0.3 |
18.1 ± 0.2 |
20.1 ± 0.3 |
39.5 ± 0.5 |
5.60 ± 0.05 |
2.56 ± 0.03 |
| RH8 |
101.2 ± 0.3 |
18.5 ± 0.2 |
20.4 ± 0.3 |
39.4 ± 0.5 |
5.47 ± 0.05 |
2.57 ± 0.03 |
| RH9 |
74.1 ± 0.6 |
10.6 ± 0.1 |
12.5 ± 0.2 |
42.2 ± 0.5 |
7.00 ± 0.06 |
1.76 ± 0.02 |
| RH10 |
76.8 ± 0.6 |
11.5 ± 0.1 |
13.6 ± 0.2 |
41.9 ± 0.5 |
6.67 ± 0.06 |
1.83 ± 0.03 |
| Average |
94.6 |
16.3 |
18.3 |
40.2 |
5.9 |
2.4 |
| Median |
101.2 |
18.2 |
20.2 |
39.5 |
5.6 |
2.6 |
| Deviation |
11.9 |
3.4 |
3.4 |
1.3 |
0.7 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
43.3 ± 3.8 |
29.0 ± 1.1 |
34.5 ± 2.1 |
53.0 ± 2.1 |
1.50 ± 0.16 |
0.82 ± 0.08 |
| VC |
44.8 ± 3.0 |
23.1 ± 0.9 |
29.0 ± 1.7 |
55.8 ± 2.1 |
1.94 ± 0.16 |
0.80 ± 0.06 |
| MX1 |
44.4 ± 3.0 |
27.7 ± 1.0 |
33.3 ± 2.0 |
53.7 ± 2.1 |
1.61 ± 0.14 |
0.83 ± 0.07 |
| MX2 |
44.5 ± 2.9 |
27.2 ± 1.0 |
32.9 ± 2.0 |
54.0 ± 2.1 |
1.64 ± 0.14 |
0.83 ± 0.07 |
| MX3 |
44.4 ± 2.9 |
27.0 ± 1.0 |
32.7 ± 2.0 |
54.1 ± 2.1 |
1.65 ± 0.14 |
0.82 ± 0.07 |
| RH8 |
44.5 ± 3.1 |
27.6 ± 1.0 |
33.3 ± 2.0 |
53.7 ± 2.1 |
1.61 ± 0.15 |
0.83 ± 0.07 |
| RH9 |
32.9 ± 3.2 |
15.6 ± 0.6 |
20.4 ± 1.2 |
58.4 ± 2.2 |
2.11 ± 0.22 |
0.57 ± 0.06 |
| RH10 |
34.1 ± 3.0 |
17.0 ± 0.6 |
22.1 ± 1.3 |
58.0 ± 2.2 |
2.02 ± 0.20 |
0.59 ± 0.06 |
| Average |
41.6 |
24.3 |
29.8 |
55.1 |
1.8 |
0.8 |
| Median |
44.4 |
27.2 |
32.9 |
54.1 |
1.7 |
0.8 |
| Deviation |
5.0 |
5.2 |
5.5 |
2.1 |
0.2 |
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 13:41:34 2022
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
