Database: Wind Shock Analysis
Event ID: 20211191859
Observation time: 04/29/2021 119.79106 1859 [UT]
|
|
General
Information (About, Top)
| Year |
2021 |
| Fractional day of year |
119.791059 |
| Arrival time of shock [seconds of day] |
68347.5 ± 30.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
198.687 |
| Y GSE location of spacecraft [Re] |
-14.132 |
| Z GSE location of spacecraft [Re] |
-10.766 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0235 |
| Downstream plasma points selected for analysis |
0005
|
| Downstream field points selected for analysis |
0163 |
| Minimum chisq/dof for RH8,RH9,RH10 |
4.60, 14.37, 15.23 |
Event added to database
|
Wed Jan 12 15:50:08 2022
|
Event last processed
|
Fri Jan 14 11:30:11 2022
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
62.317 ± 8.863
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-330.6 ± 1.2 |
-347.6 ± 1.0 |
| Vy GSE [km/s] |
-4.5 ± 0.8 |
0.8 ± 4.6 |
| Vz GSE [km/s] |
-10.5 ± 1.5 |
-31.0 ± 1.9 |
| Wi [km/s] |
20.1 ± 1.1 |
25.6 ± 0.9 |
| We [km/s] |
634.5 ± 33.6 |
809.7 ± 27.8 |
| Ni [n/cc] |
8.5 ± 0.5 |
13.2 ± 0.4 |
| Bx GSE [nT] |
1.3 ± 0.5 |
0.7 ± 0.2 |
| By GSE [nT] |
5.2 ± 0.3 |
8.2 ± 0.1 |
| Bz GSE [nT] |
0.7 ± 0.5 |
1.1 ± 0.5 |
Plasma Beta
|
0.245 ± 0.234
|
0.263 ± 0.266
|
Sound Speed [km/s]
|
25.90 ± 1.37
|
33.06 ± 1.13
|
Alfven Speed [km/s]
|
40.67 ± 1.73
|
49.96 ± 0.54
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.977 ± 0.123 |
-0.083 ± 0.622 |
-0.194 ± 0.192 |
-11.20 ± 33.04 |
184.84 ± 36.48 |
| VC |
-0.639 ± 0.064 |
0.194 ± 0.146 |
-0.745 ± 0.561 |
-48.14 ± 3.70 |
163.13 ± 13.08 |
| MX1 |
-0.681 ± 0.043 |
0.004 ± 0.236 |
-0.732 ± 0.560 |
-47.08 ± 3.37 |
179.68 ± 19.85 |
| MX2 |
-0.659 ± 0.046 |
0.007 ± 0.226 |
-0.752 ± 0.561 |
-48.78 ± 3.53 |
179.38 ± 19.68 |
| MX3 |
-0.624 ± 0.081 |
0.014 ± 0.213 |
-0.781 ± 0.560 |
-51.36 ± 5.96 |
178.67 ± 19.50 |
| RH08 |
-0.856 ± 0.011 |
-0.144 ± 0.012 |
0.497 ± 0.451 |
29.82 ± 1.32 |
189.53 ± 0.79 |
| RH09 |
-0.897 ± 0.031 |
-0.102 ± 0.066 |
-0.430 ± 0.401 |
-25.48 ± 4.05 |
186.52 ± 4.22 |
| RH10 |
-0.902 ± 0.030 |
-0.103 ± 0.069 |
-0.419 ± 0.393 |
-24.77 ± 3.98 |
186.52 ± 4.37 |
| Average |
-0.779 |
-0.027 |
-0.445 |
-28.373 |
181.034 |
| Median |
-0.681 |
0.004 |
-0.430 |
-25.478 |
184.838 |
| Deviation |
0.142 |
0.107 |
0.436 |
27.742 |
8.257 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
70.4 ± 6.8 |
381.7 ± 0.9 |
1.59 ± 0.14 |
| VC |
86.6 ± 7.8 |
295.0 ± 1.5 |
1.59 ± 0.14 |
| MX1 |
75.5 ± 7.8 |
308.5 ± 1.4 |
1.59 ± 0.14 |
| MX2 |
75.9 ± 7.8 |
301.7 ± 1.4 |
1.59 ± 0.14 |
| MX3 |
76.6 ± 7.7 |
290.8 ± 1.4 |
1.59 ± 0.14 |
| RH08 |
73.9 ± 2.6 |
286.4 ± 0.7 |
1.59 ± 0.14 |
| RH09 |
68.5 ± 7.6 |
367.8 ± 1.1 |
1.59 ± 0.14 |
| RH10 |
68.5 ± 7.6 |
369.0 ± 6.6 |
1.59 ± 0.14 |
| Average |
74.5 |
325.1 |
1.59 |
| Median |
75.5 |
308.5 |
1.59 |
| Deviation |
5.9 |
40.3 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
56.2 ± 1.3 |
7.4 ± 0.3 |
13.7 ± 0.6 |
47.7 ± 1.6 |
7.58 ± 0.41 |
1.18 ± 0.06 |
| VC |
76.9 ± 1.8 |
1.3 ± 0.0 |
2.4 ± 0.1 |
48.2 ± 1.6 |
59.98 ± 3.14 |
1.60 ± 0.09 |
| MX1 |
75.7 ± 1.7 |
5.5 ± 0.2 |
10.2 ± 0.4 |
47.9 ± 1.6 |
13.80 ± 0.72 |
1.58 ± 0.08 |
| MX2 |
76.0 ± 1.7 |
5.4 ± 0.2 |
9.9 ± 0.4 |
47.9 ± 1.6 |
14.19 ± 0.73 |
1.59 ± 0.08 |
| MX3 |
76.3 ± 1.7 |
5.1 ± 0.2 |
9.5 ± 0.4 |
48.0 ± 1.6 |
14.98 ± 0.77 |
1.59 ± 0.08 |
| RH8 |
8.1 ± 0.8 |
6.1 ± 0.2 |
11.3 ± 0.5 |
47.9 ± 1.6 |
1.33 ± 0.16 |
0.17 ± 0.02 |
| RH9 |
66.3 ± 1.5 |
8.1 ± 0.3 |
14.9 ± 0.6 |
47.6 ± 1.6 |
8.21 ± 0.43 |
1.40 ± 0.07 |
| RH10 |
65.9 ± 1.5 |
8.1 ± 0.3 |
14.9 ± 0.6 |
47.6 ± 1.6 |
8.14 ± 0.43 |
1.39 ± 0.07 |
| Average |
62.7 |
5.9 |
10.8 |
47.8 |
16.0 |
1.3 |
| Median |
75.7 |
6.1 |
11.3 |
47.9 |
13.8 |
1.6 |
| Deviation |
23.2 |
2.2 |
4.1 |
0.2 |
18.3 |
0.5 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
36.0 ± 1.5 |
9.4 ± 0.2 |
16.8 ± 0.2 |
59.2 ± 0.4 |
3.84 ± 0.24 |
0.61 ± 0.03 |
| VC |
49.7 ± 1.4 |
1.6 ± 0.0 |
2.9 ± 0.0 |
59.9 ± 0.5 |
30.67 ± 1.08 |
0.83 ± 0.02 |
| MX1 |
49.1 ± 1.7 |
6.9 ± 0.2 |
12.5 ± 0.1 |
59.5 ± 0.4 |
7.07 ± 0.35 |
0.82 ± 0.03 |
| MX2 |
49.3 ± 1.7 |
6.8 ± 0.2 |
12.2 ± 0.1 |
59.5 ± 0.4 |
7.28 ± 0.36 |
0.83 ± 0.03 |
| MX3 |
49.6 ± 1.7 |
6.4 ± 0.1 |
11.6 ± 0.1 |
59.6 ± 0.4 |
7.70 ± 0.38 |
0.83 ± 0.03 |
| RH8 |
4.5 ± 1.6 |
7.7 ± 0.2 |
13.9 ± 0.1 |
59.4 ± 0.4 |
0.59 ± 0.22 |
0.08 ± 0.03 |
| RH9 |
42.8 ± 1.7 |
10.2 ± 0.2 |
18.3 ± 0.2 |
59.0 ± 0.4 |
4.18 ± 0.25 |
0.72 ± 0.03 |
| RH10 |
42.5 ± 1.7 |
10.2 ± 0.2 |
18.3 ± 0.2 |
59.0 ± 0.4 |
4.15 ± 0.25 |
0.72 ± 0.03 |
| Average |
40.4 |
7.4 |
13.3 |
59.4 |
8.2 |
0.7 |
| Median |
49.1 |
7.7 |
13.9 |
59.5 |
7.1 |
0.8 |
| Deviation |
15.3 |
2.8 |
5.0 |
0.3 |
9.4 |
0.3 |
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 13:39:57 2022
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
