Database: Wind Shock Analysis
Event ID: 20172430435
Observation time: 08/31/2017 243.19141 0435 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
243.191406 |
| Arrival time of shock [seconds of day] |
16537.5 ± 10.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
260.358 |
| Y GSE location of spacecraft [Re] |
36.274 |
| Z GSE location of spacecraft [Re] |
8.920 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0169 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0134 |
| Minimum chisq/dof for RH8,RH9,RH10 |
11.24, 18.21, 21.29 |
Event added to database
|
Tue Oct 24 12:57:55 2017
|
Event last processed
|
Tue Oct 24 13:34:35 2017
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
62.499 ± 0.577
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-364.6 ± 1.9 |
-403.8 ± 3.0 |
| Vy GSE [km/s] |
-49.0 ± 1.4 |
-62.5 ± 1.8 |
| Vz GSE [km/s] |
-25.7 ± 1.2 |
-13.8 ± 4.5 |
| Wi [km/s] |
24.7 ± 0.3 |
32.2 ± 1.4 |
| We [km/s] |
779.8 ± 10.6 |
1017.4 ± 43.9 |
| Ni [n/cc] |
23.4 ± 0.9 |
47.0 ± 1.2 |
| Bx GSE [nT] |
3.9 ± 0.3 |
3.4 ± 0.5 |
| By GSE [nT] |
-4.1 ± 0.4 |
-8.6 ± 0.4 |
| Bz GSE [nT] |
-1.5 ± 0.2 |
2.1 ± 1.3 |
Plasma Beta
|
0.850 ± 0.856
|
1.110 ± 1.189
|
Sound Speed [km/s]
|
31.84 ± 0.43
|
41.54 ± 1.79
|
Alfven Speed [km/s]
|
26.75 ± 0.34
|
30.58 ± 0.62
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.754 ± 0.091 |
0.461 ± 0.132 |
0.468 ± 0.430 |
27.88 ± 6.54 |
148.59 ± 9.76 |
| VC |
-0.910 ± 0.026 |
-0.314 ± 0.041 |
0.272 ± 0.265 |
15.77 ± 4.84 |
199.06 ± 2.56 |
| MX1 |
-0.895 ± 0.068 |
0.345 ± 0.175 |
0.283 ± 0.275 |
16.43 ± 2.52 |
158.93 ± 11.17 |
| MX2 |
-0.974 ± 0.022 |
0.195 ± 0.107 |
0.111 ± 0.111 |
6.38 ± 2.19 |
168.67 ± 6.27 |
| MX3 |
-0.997 ± 0.006 |
0.075 ± 0.083 |
-0.033 ± 0.033 |
-1.90 ± 2.43 |
175.72 ± 4.78 |
| RH08 |
-0.994 ± 0.004 |
-0.009 ± 0.019 |
-0.106 ± 0.106 |
-6.09 ± 2.09 |
180.50 ± 1.07 |
| RH09 |
-0.859 ± 0.033 |
-0.160 ± 0.057 |
-0.486 ± 0.444 |
-29.08 ± 3.76 |
190.53 ± 3.81 |
| RH10 |
-0.868 ± 0.034 |
-0.146 ± 0.065 |
-0.475 ± 0.435 |
-28.35 ± 3.91 |
189.53 ± 4.26 |
| Average |
-0.906 |
0.056 |
0.004 |
0.130 |
176.440 |
| Median |
-0.895 |
0.075 |
0.111 |
6.378 |
180.501 |
| Deviation |
0.082 |
0.266 |
0.350 |
20.794 |
17.076 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
19.8 ± 2.2 |
300.9 ± 1.6 |
2.04 ± 0.04 |
| VC |
62.9 ± 4.5 |
425.6 ± 1.4 |
2.04 ± 0.04 |
| MX1 |
24.5 ± 4.5 |
372.6 ± 1.4 |
2.04 ± 0.04 |
| MX2 |
35.3 ± 5.0 |
418.0 ± 1.2 |
2.04 ± 0.04 |
| MX3 |
44.7 ± 5.0 |
435.9 ± 1.0 |
2.04 ± 0.04 |
| RH08 |
50.7 ± 5.0 |
441.0 ± 0.9 |
2.04 ± 0.04 |
| RH09 |
70.0 ± 4.7 |
393.8 ± 0.5 |
2.04 ± 0.04 |
| RH10 |
68.8 ± 4.7 |
396.5 ± 2.2 |
2.04 ± 0.04 |
| Average |
47.1 |
398.0 |
2.04 |
| Median |
50.7 |
418.0 |
2.04 |
| Deviation |
19.5 |
45.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
60.5 ± 0.5 |
23.2 ± 0.3 |
25.2 ± 0.3 |
34.5 ± 0.4 |
2.60 ± 0.04 |
1.75 ± 0.03 |
| VC |
85.5 ± 1.8 |
9.6 ± 0.1 |
12.2 ± 0.2 |
40.5 ± 0.5 |
8.93 ± 0.28 |
2.11 ± 0.07 |
| MX1 |
70.5 ± 1.1 |
21.9 ± 0.3 |
24.3 ± 0.3 |
35.3 ± 0.4 |
3.21 ± 0.07 |
1.99 ± 0.05 |
| MX2 |
75.2 ± 1.5 |
18.7 ± 0.2 |
21.8 ± 0.3 |
37.1 ± 0.5 |
4.02 ± 0.11 |
2.03 ± 0.06 |
| MX3 |
75.3 ± 1.9 |
15.7 ± 0.2 |
19.0 ± 0.2 |
38.5 ± 0.5 |
4.79 ± 0.15 |
1.96 ± 0.07 |
| RH8 |
75.3 ± 2.0 |
13.7 ± 0.2 |
16.9 ± 0.2 |
39.2 ± 0.5 |
5.48 ± 0.19 |
1.92 ± 0.07 |
| RH9 |
60.2 ± 2.3 |
7.1 ± 0.1 |
9.2 ± 0.1 |
41.0 ± 0.5 |
8.46 ± 0.39 |
1.47 ± 0.07 |
| RH10 |
60.7 ± 2.3 |
7.5 ± 0.1 |
9.7 ± 0.1 |
40.9 ± 0.5 |
8.08 ± 0.37 |
1.48 ± 0.07 |
| Average |
70.4 |
14.7 |
17.3 |
38.4 |
5.7 |
1.8 |
| Median |
75.2 |
15.7 |
19.0 |
39.2 |
5.5 |
2.0 |
| Deviation |
9.2 |
6.3 |
6.4 |
2.5 |
2.5 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
31.6 ± 4.4 |
27.3 ± 0.5 |
28.8 ± 0.6 |
43.8 ± 1.6 |
1.16 ± 0.16 |
0.72 ± 0.12 |
| VC |
42.4 ± 4.0 |
11.5 ± 0.2 |
13.9 ± 0.3 |
50.3 ± 1.5 |
3.69 ± 0.39 |
0.85 ± 0.10 |
| MX1 |
36.7 ± 4.0 |
25.9 ± 0.5 |
27.8 ± 0.6 |
44.6 ± 1.6 |
1.42 ± 0.15 |
0.82 ± 0.11 |
| MX2 |
38.3 ± 3.4 |
22.3 ± 0.4 |
25.0 ± 0.5 |
46.5 ± 1.5 |
1.72 ± 0.16 |
0.83 ± 0.10 |
| MX3 |
37.7 ± 2.9 |
18.8 ± 0.4 |
21.7 ± 0.4 |
48.0 ± 1.5 |
2.01 ± 0.17 |
0.79 ± 0.08 |
| RH8 |
37.5 ± 2.6 |
16.4 ± 0.3 |
19.4 ± 0.4 |
48.9 ± 1.5 |
2.28 ± 0.18 |
0.77 ± 0.07 |
| RH9 |
30.2 ± 1.1 |
8.5 ± 0.2 |
10.5 ± 0.2 |
50.9 ± 1.5 |
3.54 ± 0.19 |
0.59 ± 0.04 |
| RH10 |
30.4 ± 1.1 |
9.0 ± 0.2 |
11.0 ± 0.2 |
50.8 ± 1.5 |
3.37 ± 0.18 |
0.60 ± 0.04 |
| Average |
35.6 |
17.5 |
19.8 |
48.0 |
2.4 |
0.7 |
| Median |
37.5 |
18.8 |
21.7 |
48.9 |
2.3 |
0.8 |
| Deviation |
4.4 |
7.4 |
7.3 |
2.8 |
1.0 |
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 Wed Jan 22 21:47:00 2020
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
