Database: Wind Shock Analysis
Event ID: 20172430046
Observation time: 08/31/2017 243.03245 0046 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
243.032448 |
| Arrival time of shock [seconds of day] |
2803.5 ± 20.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
260.302 |
| Y GSE location of spacecraft [Re] |
36.798 |
| Z GSE location of spacecraft [Re] |
8.877 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0223 |
| Downstream plasma points selected for analysis |
0006
|
| Downstream field points selected for analysis |
0188 |
| Minimum chisq/dof for RH8,RH9,RH10 |
16.00, 66.61, 72.42 |
Event added to database
|
Tue Oct 24 12:57:07 2017
|
Event last processed
|
Tue Oct 24 13:32:30 2017
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
62.740 ± 8.543
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-344.4 ± 0.5 |
-370.1 ± 0.7 |
| Vy GSE [km/s] |
-2.0 ± 0.5 |
-26.4 ± 1.8 |
| Vz GSE [km/s] |
-5.9 ± 0.8 |
15.4 ± 1.5 |
| Wi [km/s] |
14.8 ± 0.4 |
20.0 ± 0.7 |
| We [km/s] |
467.2 ± 12.7 |
632.4 ± 22.1 |
| Ni [n/cc] |
7.7 ± 0.2 |
14.5 ± 0.2 |
| Bx GSE [nT] |
3.9 ± 0.1 |
6.3 ± 0.2 |
| By GSE [nT] |
-2.1 ± 0.1 |
-5.6 ± 0.3 |
| Bz GSE [nT] |
0.7 ± 0.1 |
1.6 ± 0.2 |
Plasma Beta
|
0.177 ± 0.188
|
0.164 ± 0.167
|
Sound Speed [km/s]
|
19.07 ± 0.52
|
25.82 ± 0.90
|
Alfven Speed [km/s]
|
35.24 ± 1.02
|
49.51 ± 1.11
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.848 ± 0.020 |
-0.517 ± 0.025 |
0.117 ± 0.116 |
6.71 ± 8.27 |
211.35 ± 1.56 |
| VC |
-0.622 ± 0.028 |
-0.590 ± 0.028 |
0.515 ± 0.464 |
30.98 ± 2.72 |
223.50 ± 2.11 |
| MX1 |
-0.805 ± 0.024 |
-0.410 ± 0.023 |
0.428 ± 0.400 |
25.33 ± 3.19 |
206.99 ± 1.45 |
| MX2 |
-0.798 ± 0.022 |
-0.400 ± 0.023 |
0.451 ± 0.418 |
26.82 ± 2.71 |
206.62 ± 1.52 |
| MX3 |
-0.790 ± 0.021 |
-0.389 ± 0.024 |
0.474 ± 0.435 |
28.31 ± 2.37 |
206.23 ± 1.61 |
| RH08 |
-0.819 ± 0.006 |
-0.392 ± 0.008 |
0.419 ± 0.393 |
24.77 ± 0.74 |
205.57 ± 0.55 |
| RH09 |
-0.480 ± 0.059 |
-0.004 ± 0.054 |
0.877 ± 0.514 |
61.29 ± 3.85 |
180.50 ± 6.38 |
| RH10 |
-0.829 ± 0.033 |
-0.551 ± 0.050 |
-0.095 ± 0.095 |
-5.45 ± 3.96 |
213.59 ± 3.43 |
| Average |
-0.749 |
-0.407 |
0.398 |
24.847 |
206.794 |
| Median |
-0.798 |
-0.400 |
0.451 |
26.823 |
206.991 |
| Deviation |
0.129 |
0.181 |
0.287 |
19.379 |
12.185 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
60.6 ± 1.2 |
372.1 ± 0.4 |
1.88 ± 0.05 |
| VC |
78.4 ± 0.9 |
302.0 ± 0.4 |
1.88 ± 0.05 |
| MX1 |
62.8 ± 0.9 |
361.9 ± 0.4 |
1.88 ± 0.05 |
| MX2 |
63.1 ± 0.8 |
359.1 ± 0.4 |
1.88 ± 0.05 |
| MX3 |
63.5 ± 0.8 |
356.3 ± 0.4 |
1.88 ± 0.05 |
| RH08 |
61.4 ± 0.9 |
366.0 ± 0.4 |
1.88 ± 0.05 |
| RH09 |
73.0 ± 0.6 |
226.7 ± 0.6 |
1.88 ± 0.05 |
| RH10 |
60.7 ± 1.4 |
357.7 ± 3.0 |
1.88 ± 0.05 |
| Average |
65.4 |
337.7 |
1.88 |
| Median |
63.1 |
359.1 |
1.88 |
| Deviation |
6.6 |
49.8 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
79.7 ± 0.5 |
8.4 ± 0.2 |
17.3 ± 0.5 |
39.2 ± 0.8 |
9.46 ± 0.20 |
2.03 ± 0.04 |
| VC |
89.7 ± 0.4 |
3.4 ± 0.1 |
7.1 ± 0.2 |
39.9 ± 0.8 |
26.53 ± 0.47 |
2.25 ± 0.04 |
| MX1 |
86.3 ± 0.4 |
7.8 ± 0.1 |
16.1 ± 0.5 |
39.3 ± 0.8 |
11.05 ± 0.22 |
2.20 ± 0.04 |
| MX2 |
86.3 ± 0.4 |
7.7 ± 0.1 |
15.9 ± 0.5 |
39.3 ± 0.8 |
11.18 ± 0.22 |
2.19 ± 0.04 |
| MX3 |
86.4 ± 0.3 |
7.6 ± 0.1 |
15.7 ± 0.5 |
39.3 ± 0.8 |
11.34 ± 0.22 |
2.20 ± 0.04 |
| RH8 |
85.6 ± 0.4 |
8.2 ± 0.2 |
16.9 ± 0.5 |
39.2 ± 0.8 |
10.45 ± 0.21 |
2.18 ± 0.04 |
| RH9 |
66.5 ± 0.5 |
4.9 ± 0.1 |
10.3 ± 0.3 |
39.8 ± 0.8 |
13.49 ± 0.24 |
1.67 ± 0.03 |
| RH10 |
70.5 ± 0.7 |
8.4 ± 0.2 |
17.3 ± 0.5 |
39.2 ± 0.8 |
8.40 ± 0.19 |
1.80 ± 0.03 |
| Average |
81.4 |
7.1 |
14.6 |
39.4 |
12.7 |
2.1 |
| Median |
86.3 |
7.8 |
16.1 |
39.3 |
11.2 |
2.2 |
| Deviation |
8.5 |
1.9 |
3.8 |
0.3 |
5.8 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
42.8 ± 0.9 |
11.5 ± 0.3 |
24.3 ± 0.5 |
54.6 ± 1.1 |
3.73 ± 0.18 |
0.78 ± 0.03 |
| VC |
48.4 ± 0.5 |
4.6 ± 0.1 |
10.0 ± 0.2 |
55.6 ± 1.1 |
10.49 ± 0.41 |
0.87 ± 0.03 |
| MX1 |
46.5 ± 0.4 |
10.7 ± 0.3 |
22.6 ± 0.5 |
54.8 ± 1.1 |
4.37 ± 0.16 |
0.85 ± 0.02 |
| MX2 |
46.4 ± 0.4 |
10.5 ± 0.3 |
22.4 ± 0.5 |
54.8 ± 1.1 |
4.41 ± 0.15 |
0.85 ± 0.02 |
| MX3 |
46.5 ± 0.4 |
10.4 ± 0.3 |
22.1 ± 0.5 |
54.9 ± 1.1 |
4.47 ± 0.15 |
0.85 ± 0.02 |
| RH8 |
46.1 ± 0.4 |
11.2 ± 0.3 |
23.7 ± 0.5 |
54.7 ± 1.1 |
4.13 ± 0.15 |
0.84 ± 0.02 |
| RH9 |
35.4 ± 1.2 |
6.7 ± 0.2 |
14.5 ± 0.3 |
55.4 ± 1.1 |
5.26 ± 0.13 |
0.64 ± 0.02 |
| RH10 |
37.7 ± 1.3 |
11.4 ± 0.3 |
24.2 ± 0.5 |
54.7 ± 1.1 |
3.30 ± 0.20 |
0.69 ± 0.03 |
| Average |
43.7 |
9.6 |
20.5 |
55.0 |
5.0 |
0.8 |
| Median |
46.4 |
10.7 |
22.6 |
54.8 |
4.4 |
0.8 |
| Deviation |
4.7 |
2.5 |
5.3 |
0.4 |
2.3 |
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)
| 
