Database: Wind Shock Analysis
Event ID: 20170550345
Observation time: 02/24/2017 55.15665 0345 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
55.156649 |
| Arrival time of shock [seconds of day] |
13534.5 ± 60.0 |
| Shock type |
FR |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
251.026 |
| Y GSE location of spacecraft [Re] |
57.998 |
| Z GSE location of spacecraft [Re] |
7.532 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0190 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0250 |
| Minimum chisq/dof for RH8,RH9,RH10 |
11.78, 13.82, 14.48 |
Event added to database
|
Tue Oct 24 11:52:56 2017
|
Event last processed
|
Tue Oct 24 13:09:33 2017
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
50.201 ± 0.695
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-560.5 ± 22.4 |
-639.0 ± 18.6 |
| Vy GSE [km/s] |
61.5 ± 11.8 |
7.1 ± 26.1 |
| Vz GSE [km/s] |
-56.0 ± 11.6 |
-17.4 ± 20.5 |
| Wi [km/s] |
68.4 ± 1.7 |
53.6 ± 6.0 |
| We [km/s] |
2161.9 ± 53.2 |
1694.9 ± 190.0 |
| Ni [n/cc] |
6.5 ± 0.5 |
2.9 ± 0.2 |
| Bx GSE [nT] |
-7.2 ± 0.7 |
-2.2 ± 1.6 |
| By GSE [nT] |
4.9 ± 2.3 |
3.0 ± 2.0 |
| Bz GSE [nT] |
-1.5 ± 2.9 |
-0.5 ± 1.6 |
Plasma Beta
|
0.724 ± 0.726
|
0.940 ± 0.693
|
Sound Speed [km/s]
|
88.26 ± 2.17
|
69.20 ± 7.76
|
Alfven Speed [km/s]
|
80.66 ± 4.15
|
59.76 ± 11.23
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.854 ± 0.538 |
0.521 ± 0.882 |
-0.014 ± 0.014 |
-0.81 ± 32.62 |
148.61 ± 59.23 |
| VC |
-0.772 ± 0.143 |
-0.520 ± 0.193 |
0.365 ± 0.348 |
21.44 ± 12.48 |
213.98 ± 13.92 |
| MX1 |
-0.950 ± 0.411 |
0.313 ± 1.245 |
0.001 ± 0.001 |
0.06 ± 29.44 |
161.74 ± 75.10 |
| MX2 |
-0.896 ± 0.536 |
0.444 ± 1.081 |
0.016 ± 0.016 |
0.90 ± 27.03 |
153.61 ± 69.14 |
| MX3 |
-0.987 ± 0.101 |
-0.042 ± 1.268 |
0.153 ± 0.152 |
8.82 ± 31.77 |
182.43 ± 73.58 |
| RH08 |
-0.996 ± 0.002 |
0.061 ± 0.028 |
-0.061 ± 0.061 |
-3.52 ± 1.51 |
176.49 ± 1.61 |
| RH09 |
-0.979 ± 0.014 |
0.164 ± 0.070 |
-0.117 ± 0.117 |
-6.74 ± 4.01 |
170.47 ± 4.07 |
| RH10 |
-0.979 ± 0.014 |
0.164 ± 0.070 |
-0.117 ± 0.117 |
-6.74 ± 4.01 |
170.47 ± 4.07 |
| Average |
-0.927 |
0.138 |
0.028 |
1.676 |
172.226 |
| Median |
-0.950 |
0.164 |
0.001 |
0.056 |
170.474 |
| Deviation |
0.080 |
0.326 |
0.161 |
9.408 |
20.305 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
21.0 ± 11.6 |
496.4 ± 6.1 |
0.46 ± 0.05 |
| VC |
74.8 ± 6.1 |
299.0 ± 5.3 |
0.46 ± 0.05 |
| MX1 |
27.2 ± 7.5 |
523.4 ± 6.1 |
0.46 ± 0.05 |
| MX2 |
23.2 ± 10.4 |
507.0 ± 6.1 |
0.46 ± 0.05 |
| MX3 |
45.0 ± 5.5 |
484.7 ± 5.7 |
0.46 ± 0.05 |
| RH08 |
36.5 ± 7.1 |
522.8 ± 6.2 |
0.46 ± 0.05 |
| RH09 |
31.3 ± 7.5 |
530.8 ± 6.3 |
0.46 ± 0.05 |
| RH10 |
31.3 ± 7.5 |
530.8 ± 36.7 |
0.46 ± 0.05 |
| Average |
36.3 |
486.9 |
0.46 |
| Median |
31.3 |
522.8 |
0.46 |
| Deviation |
17.3 |
77.7 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-14.8 ± 23.7 |
67.1 ± 2.2 |
75.3 ± 3.9 |
99.0 ± 2.2 |
-0.21 ± 0.36 |
-0.15 ± 0.24 |
| VC |
-81.2 ± 10.2 |
15.7 ± 0.5 |
21.1 ± 1.1 |
118.6 ± 3.0 |
-5.15 ± 0.53 |
-0.68 ± 0.07 |
| MX1 |
-28.1 ± 23.9 |
61.8 ± 1.9 |
71.7 ± 3.7 |
102.4 ± 2.4 |
-0.45 ± 0.39 |
-0.27 ± 0.23 |
| MX2 |
-21.4 ± 23.8 |
65.2 ± 2.1 |
74.1 ± 3.8 |
100.3 ± 2.3 |
-0.32 ± 0.37 |
-0.21 ± 0.24 |
| MX3 |
-57.5 ± 20.5 |
45.5 ± 1.3 |
57.1 ± 2.9 |
110.6 ± 2.7 |
-1.25 ± 0.43 |
-0.52 ± 0.18 |
| RH8 |
-42.8 ± 23.3 |
53.5 ± 1.6 |
64.9 ± 3.3 |
107.0 ± 2.5 |
-0.79 ± 0.43 |
-0.40 ± 0.22 |
| RH9 |
-34.8 ± 24.2 |
58.2 ± 1.8 |
68.9 ± 3.5 |
104.5 ± 2.4 |
-0.59 ± 0.42 |
-0.33 ± 0.23 |
| RH10 |
-34.8 ± 24.2 |
58.2 ± 1.8 |
68.9 ± 3.5 |
104.5 ± 2.4 |
-0.59 ± 0.42 |
-0.33 ± 0.23 |
| Average |
-39.4 |
53.1 |
62.8 |
105.9 |
-1.2 |
-0.4 |
| Median |
-34.8 |
58.2 |
68.9 |
104.5 |
-0.6 |
-0.3 |
| Deviation |
21.3 |
16.6 |
17.8 |
6.3 |
1.6 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-53.0 ± 10.2 |
49.6 ± 8.0 |
55.8 ± 10.5 |
77.2 ± 6.7 |
-1.12 ± 0.43 |
-0.69 ± 0.14 |
| VC |
-184.2 ± 30.6 |
11.8 ± 1.7 |
15.7 ± 2.9 |
91.2 ± 8.9 |
-15.75 ± 2.08 |
-2.02 ± 0.24 |
| MX1 |
-85.7 ± 12.4 |
45.8 ± 7.2 |
53.2 ± 10.0 |
79.6 ± 7.0 |
-1.93 ± 0.50 |
-1.08 ± 0.14 |
| MX2 |
-68.2 ± 10.4 |
48.3 ± 7.7 |
54.9 ± 10.3 |
78.1 ± 6.8 |
-1.47 ± 0.45 |
-0.88 ± 0.13 |
| MX3 |
-143.3 ± 20.3 |
33.9 ± 5.0 |
42.3 ± 7.9 |
85.4 ± 7.9 |
-4.29 ± 0.72 |
-1.68 ± 0.18 |
| RH8 |
-115.4 ± 17.2 |
39.8 ± 6.0 |
48.1 ± 9.0 |
82.8 ± 7.5 |
-2.96 ± 0.62 |
-1.40 ± 0.17 |
| RH9 |
-98.3 ± 15.1 |
43.2 ± 6.7 |
51.1 ± 9.6 |
81.1 ± 7.2 |
-2.33 ± 0.57 |
-1.21 ± 0.17 |
| RH10 |
-98.3 ± 15.1 |
43.2 ± 6.7 |
51.1 ± 9.6 |
81.1 ± 7.2 |
-2.33 ± 0.57 |
-1.21 ± 0.17 |
| Average |
-105.8 |
39.4 |
46.5 |
82.1 |
-4.0 |
-1.3 |
| Median |
-98.3 |
43.2 |
51.1 |
81.1 |
-2.3 |
-1.2 |
| Deviation |
42.0 |
12.2 |
13.2 |
4.5 |
4.8 |
0.4 |
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 Wed Jan 22 21:47:00 2020
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
