Database: Wind Shock Analysis
Event ID: 20171892306
Observation time: 07/08/2017 189.96259 2306 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
189.962587 |
| Arrival time of shock [seconds of day] |
83167.5 ± 10.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
208.275 |
| Y GSE location of spacecraft [Re] |
85.102 |
| Z GSE location of spacecraft [Re] |
-9.279 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0184 |
| Downstream plasma points selected for analysis |
0003
|
| Downstream field points selected for analysis |
0095 |
| Minimum chisq/dof for RH8,RH9,RH10 |
11.40, 56.57, 76.02 |
Event added to database
|
Tue Oct 24 12:46:23 2017
|
Event last processed
|
Tue Oct 24 13:23:25 2017
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
58.581 ± 1.934
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-317.9 ± 1.0 |
-345.2 ± 1.8 |
| Vy GSE [km/s] |
-23.6 ± 0.9 |
-38.4 ± 1.5 |
| Vz GSE [km/s] |
-19.6 ± 1.2 |
-28.2 ± 0.7 |
| Wi [km/s] |
17.5 ± 0.3 |
21.9 ± 0.3 |
| We [km/s] |
554.2 ± 8.7 |
693.3 ± 8.6 |
| Ni [n/cc] |
8.2 ± 0.2 |
14.6 ± 0.8 |
| Bx GSE [nT] |
2.5 ± 0.1 |
3.4 ± 0.3 |
| By GSE [nT] |
-2.8 ± 0.1 |
-5.5 ± 0.3 |
| Bz GSE [nT] |
0.2 ± 0.1 |
-0.9 ± 0.7 |
Plasma Beta
|
0.368 ± 0.374
|
0.343 ± 0.339
|
Sound Speed [km/s]
|
22.63 ± 0.35
|
28.31 ± 0.35
|
Alfven Speed [km/s]
|
28.92 ± 0.43
|
37.44 ± 0.09
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.817 ± 0.057 |
-0.029 ± 0.206 |
-0.576 ± 0.502 |
-35.14 ± 5.65 |
182.04 ± 14.42 |
| VC |
-0.847 ± 0.029 |
-0.459 ± 0.051 |
-0.267 ± 0.260 |
-15.46 ± 2.06 |
208.47 ± 3.42 |
| MX1 |
-0.946 ± 0.033 |
-0.205 ± 0.147 |
-0.251 ± 0.246 |
-14.53 ± 2.19 |
192.21 ± 8.90 |
| MX2 |
-0.950 ± 0.033 |
-0.225 ± 0.130 |
-0.216 ± 0.213 |
-12.49 ± 3.56 |
193.30 ± 7.85 |
| MX3 |
-0.953 ± 0.033 |
-0.245 ± 0.114 |
-0.178 ± 0.176 |
-10.24 ± 5.09 |
194.42 ± 6.84 |
| RH08 |
-0.970 ± 0.006 |
-0.180 ± 0.025 |
-0.162 ± 0.161 |
-9.32 ± 1.29 |
190.53 ± 1.46 |
| RH09 |
-0.783 ± 0.043 |
-0.342 ± 0.065 |
0.520 ± 0.467 |
31.30 ± 4.01 |
203.57 ± 4.61 |
| RH10 |
-0.846 ± 0.037 |
-0.300 ± 0.066 |
0.441 ± 0.410 |
26.19 ± 4.00 |
199.55 ± 4.41 |
| Average |
-0.889 |
-0.248 |
-0.086 |
-4.962 |
195.511 |
| Median |
-0.847 |
-0.225 |
-0.178 |
-10.244 |
194.421 |
| Deviation |
0.073 |
0.126 |
0.373 |
22.366 |
8.214 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
56.5 ± 1.5 |
335.2 ± 1.0 |
1.79 ± 0.11 |
| VC |
76.3 ± 1.4 |
358.5 ± 1.3 |
1.79 ± 0.11 |
| MX1 |
60.6 ± 1.4 |
381.2 ± 1.0 |
1.79 ± 0.11 |
| MX2 |
61.5 ± 1.4 |
382.5 ± 1.0 |
1.79 ± 0.11 |
| MX3 |
62.4 ± 1.4 |
383.2 ± 1.0 |
1.79 ± 0.11 |
| RH08 |
58.6 ± 1.4 |
385.5 ± 0.9 |
1.79 ± 0.11 |
| RH09 |
75.9 ± 1.5 |
296.5 ± 0.6 |
1.79 ± 0.11 |
| RH10 |
71.4 ± 1.5 |
321.2 ± 2.3 |
1.79 ± 0.11 |
| Average |
65.4 |
355.5 |
1.79 |
| Median |
62.4 |
381.2 |
1.79 |
| Deviation |
7.9 |
34.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
63.4 ± 1.5 |
10.2 ± 0.1 |
16.0 ± 0.2 |
35.3 ± 0.4 |
6.19 ± 0.18 |
1.80 ± 0.04 |
| VC |
73.0 ± 1.6 |
4.3 ± 0.0 |
6.9 ± 0.1 |
36.5 ± 0.4 |
17.17 ± 0.45 |
2.00 ± 0.05 |
| MX1 |
70.6 ± 1.4 |
9.0 ± 0.1 |
14.2 ± 0.2 |
35.6 ± 0.4 |
7.82 ± 0.20 |
1.98 ± 0.04 |
| MX2 |
70.8 ± 1.4 |
8.8 ± 0.1 |
13.8 ± 0.2 |
35.7 ± 0.4 |
8.08 ± 0.20 |
1.99 ± 0.04 |
| MX3 |
70.9 ± 1.4 |
8.5 ± 0.1 |
13.4 ± 0.2 |
35.7 ± 0.4 |
8.37 ± 0.20 |
1.98 ± 0.04 |
| RH8 |
69.6 ± 1.3 |
9.6 ± 0.1 |
15.1 ± 0.2 |
35.4 ± 0.4 |
7.23 ± 0.17 |
1.96 ± 0.04 |
| RH9 |
49.7 ± 0.6 |
4.4 ± 0.0 |
7.0 ± 0.1 |
36.5 ± 0.4 |
11.40 ± 0.19 |
1.36 ± 0.02 |
| RH10 |
53.9 ± 0.7 |
5.8 ± 0.1 |
9.2 ± 0.1 |
36.3 ± 0.4 |
9.37 ± 0.16 |
1.49 ± 0.02 |
| Average |
65.2 |
7.6 |
11.9 |
35.9 |
9.5 |
1.8 |
| Median |
70.6 |
8.8 |
13.8 |
35.7 |
8.4 |
2.0 |
| Deviation |
8.8 |
2.4 |
3.7 |
0.5 |
3.5 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
35.7 ± 1.0 |
13.0 ± 0.1 |
20.7 ± 0.1 |
45.1 ± 0.2 |
2.75 ± 0.09 |
0.79 ± 0.02 |
| VC |
40.9 ± 0.6 |
5.4 ± 0.0 |
8.9 ± 0.0 |
46.6 ± 0.2 |
7.58 ± 0.15 |
0.88 ± 0.01 |
| MX1 |
39.6 ± 1.2 |
11.4 ± 0.1 |
18.4 ± 0.0 |
45.5 ± 0.2 |
3.46 ± 0.12 |
0.87 ± 0.03 |
| MX2 |
39.7 ± 1.2 |
11.1 ± 0.1 |
17.9 ± 0.0 |
45.6 ± 0.2 |
3.58 ± 0.12 |
0.87 ± 0.03 |
| MX3 |
39.8 ± 1.2 |
10.7 ± 0.1 |
17.3 ± 0.0 |
45.7 ± 0.2 |
3.71 ± 0.12 |
0.87 ± 0.03 |
| RH8 |
39.1 ± 1.3 |
12.2 ± 0.1 |
19.5 ± 0.0 |
45.3 ± 0.2 |
3.20 ± 0.12 |
0.86 ± 0.03 |
| RH9 |
27.7 ± 1.3 |
5.5 ± 0.0 |
9.1 ± 0.0 |
46.6 ± 0.2 |
5.03 ± 0.24 |
0.60 ± 0.03 |
| RH10 |
30.2 ± 1.4 |
7.3 ± 0.1 |
11.9 ± 0.0 |
46.4 ± 0.2 |
4.15 ± 0.20 |
0.65 ± 0.03 |
| Average |
36.6 |
9.6 |
15.5 |
45.9 |
4.2 |
0.8 |
| Median |
39.6 |
11.1 |
17.9 |
45.7 |
3.7 |
0.9 |
| Deviation |
5.0 |
3.0 |
4.7 |
0.6 |
1.5 |
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)
| 
