Database: Wind Shock Analysis
Event ID: 20180681708
Observation time: 03/09/2018 68.71415 1708 [UT]
|
|
General
Information (About, Top)
| Year |
2018 |
| Fractional day of year |
68.714149 |
| Arrival time of shock [seconds of day] |
61702.5 ± 40.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
259.004 |
| Y GSE location of spacecraft [Re] |
-18.948 |
| Z GSE location of spacecraft [Re] |
10.649 |
| Upstream plasma points selected for analysis |
0006 |
| Upstream field points selected for analysis |
0367 |
| Downstream plasma points selected for analysis |
0005
|
| Downstream field points selected for analysis |
0232 |
| Minimum chisq/dof for RH8,RH9,RH10 |
8.52, 21.02, 22.20 |
Event added to database
|
Fri Apr 20 10:07:16 2018
|
Event last processed
|
Fri Apr 20 10:18:49 2018
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
68.923 ± 10.462
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-354.9 ± 5.6 |
-377.2 ± 3.5 |
| Vy GSE [km/s] |
-5.7 ± 2.3 |
-19.8 ± 1.8 |
| Vz GSE [km/s] |
-5.6 ± 2.8 |
-45.7 ± 3.5 |
| Wi [km/s] |
22.7 ± 1.6 |
29.7 ± 0.5 |
| We [km/s] |
719.4 ± 49.3 |
940.6 ± 16.3 |
| Ni [n/cc] |
6.3 ± 0.7 |
15.5 ± 1.5 |
| Bx GSE [nT] |
-1.4 ± 0.1 |
-2.4 ± 0.6 |
| By GSE [nT] |
2.3 ± 0.3 |
5.7 ± 0.1 |
| Bz GSE [nT] |
-1.2 ± 0.5 |
-0.2 ± 0.6 |
Plasma Beta
|
0.765 ± 0.824
|
0.765 ± 0.799
|
Sound Speed [km/s]
|
29.37 ± 2.01
|
38.40 ± 0.66
|
Alfven Speed [km/s]
|
26.31 ± 2.15
|
34.43 ± 3.58
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.508 ± 0.203 |
0.203 ± 0.203 |
-0.837 ± 0.543 |
-56.82 ± 13.93 |
158.27 ± 21.24 |
| VC |
-0.463 ± 0.074 |
-0.310 ± 0.106 |
-0.831 ± 0.546 |
-56.16 ± 1.83 |
213.77 ± 13.03 |
| MX1 |
-0.560 ± 0.039 |
0.077 ± 0.122 |
-0.825 ± 0.548 |
-55.60 ± 2.44 |
172.12 ± 12.48 |
| MX2 |
-0.589 ± 0.051 |
0.050 ± 0.103 |
-0.807 ± 0.555 |
-53.77 ± 3.56 |
175.18 ± 9.99 |
| MX3 |
-0.609 ± 0.071 |
0.032 ± 0.096 |
-0.793 ± 0.558 |
-52.45 ± 5.13 |
176.98 ± 9.06 |
| RH08 |
-0.829 ± 0.011 |
-0.344 ± 0.013 |
0.441 ± 0.410 |
26.19 ± 1.43 |
202.56 ± 0.82 |
| RH09 |
-0.972 ± 0.016 |
-0.146 ± 0.070 |
-0.184 ± 0.182 |
-10.62 ± 4.00 |
188.52 ± 4.11 |
| RH10 |
-0.974 ± 0.016 |
-0.146 ± 0.070 |
-0.173 ± 0.171 |
-9.97 ± 4.03 |
188.52 ± 4.10 |
| Average |
-0.688 |
-0.073 |
-0.501 |
-33.650 |
184.491 |
| Median |
-0.589 |
0.032 |
-0.793 |
-52.454 |
188.524 |
| Deviation |
0.206 |
0.195 |
0.478 |
31.521 |
17.728 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
43.1 ± 9.1 |
254.9 ± 1.8 |
2.51 ± 0.27 |
| VC |
72.3 ± 8.6 |
252.9 ± 1.7 |
2.51 ± 0.27 |
| MX1 |
49.4 ± 8.6 |
278.3 ± 1.8 |
2.51 ± 0.27 |
| MX2 |
50.5 ± 8.3 |
289.3 ± 1.8 |
2.51 ± 0.27 |
| MX3 |
51.3 ± 8.1 |
296.7 ± 1.8 |
2.51 ± 0.27 |
| RH08 |
87.1 ± 4.1 |
304.0 ± 0.5 |
2.51 ± 0.27 |
| RH09 |
65.5 ± 1.5 |
401.4 ± 1.5 |
2.51 ± 0.27 |
| RH10 |
65.7 ± 1.4 |
401.3 ± 7.8 |
2.51 ± 0.27 |
| Average |
60.6 |
309.8 |
2.51 |
| Median |
65.5 |
296.7 |
2.51 |
| Deviation |
14.7 |
59.3 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
70.9 ± 5.4 |
15.5 ± 0.9 |
19.2 ± 1.6 |
36.3 ± 1.8 |
4.60 ± 0.54 |
1.96 ± 0.21 |
| VC |
82.2 ± 4.4 |
6.0 ± 0.3 |
8.0 ± 0.7 |
39.0 ± 2.0 |
13.72 ± 1.33 |
2.11 ± 0.19 |
| MX1 |
75.5 ± 5.5 |
13.5 ± 0.8 |
17.1 ± 1.4 |
37.1 ± 1.9 |
5.60 ± 0.63 |
2.04 ± 0.21 |
| MX2 |
76.1 ± 5.5 |
13.2 ± 0.8 |
16.7 ± 1.4 |
37.2 ± 1.9 |
5.81 ± 0.66 |
2.05 ± 0.21 |
| MX3 |
76.4 ± 5.6 |
12.9 ± 0.8 |
16.5 ± 1.3 |
37.3 ± 1.9 |
5.94 ± 0.67 |
2.06 ± 0.21 |
| RH8 |
10.4 ± 3.0 |
1.0 ± 0.1 |
1.4 ± 0.1 |
39.5 ± 2.0 |
10.44 ± 3.13 |
0.26 ± 0.08 |
| RH9 |
54.6 ± 5.7 |
8.3 ± 0.5 |
10.9 ± 0.9 |
38.6 ± 2.0 |
6.62 ± 0.90 |
1.42 ± 0.18 |
| RH10 |
53.8 ± 5.7 |
8.2 ± 0.5 |
10.8 ± 0.9 |
38.6 ± 2.0 |
6.59 ± 0.91 |
1.40 ± 0.18 |
| Average |
62.5 |
9.8 |
12.6 |
37.9 |
7.4 |
1.7 |
| Median |
75.5 |
12.9 |
16.5 |
38.6 |
6.6 |
2.0 |
| Deviation |
23.5 |
4.8 |
6.0 |
1.1 |
3.1 |
0.6 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
28.9 ± 4.9 |
20.3 ± 1.2 |
25.1 ± 2.6 |
47.5 ± 2.2 |
1.42 ± 0.19 |
0.61 ± 0.09 |
| VC |
34.2 ± 4.2 |
7.9 ± 0.5 |
10.5 ± 1.1 |
51.0 ± 2.5 |
4.34 ± 0.38 |
0.67 ± 0.06 |
| MX1 |
31.0 ± 4.9 |
17.7 ± 1.0 |
22.4 ± 2.3 |
48.5 ± 2.3 |
1.75 ± 0.22 |
0.64 ± 0.08 |
| MX2 |
31.4 ± 4.9 |
17.2 ± 1.0 |
21.9 ± 2.3 |
48.7 ± 2.3 |
1.82 ± 0.22 |
0.64 ± 0.08 |
| MX3 |
31.6 ± 4.9 |
16.9 ± 1.0 |
21.5 ± 2.2 |
48.8 ± 2.3 |
1.86 ± 0.23 |
0.65 ± 0.08 |
| RH8 |
4.7 ± 1.2 |
1.3 ± 0.1 |
1.8 ± 0.2 |
51.6 ± 2.5 |
3.59 ± 0.74 |
0.09 ± 0.02 |
| RH9 |
23.4 ± 3.9 |
10.8 ± 0.6 |
14.3 ± 1.5 |
50.5 ± 2.4 |
2.16 ± 0.28 |
0.46 ± 0.06 |
| RH10 |
23.1 ± 3.9 |
10.7 ± 0.6 |
14.2 ± 1.5 |
50.5 ± 2.4 |
2.14 ± 0.28 |
0.46 ± 0.06 |
| Average |
26.0 |
12.9 |
16.5 |
49.6 |
2.4 |
0.5 |
| Median |
31.0 |
16.9 |
21.5 |
50.5 |
2.1 |
0.6 |
| Deviation |
9.5 |
6.3 |
7.8 |
1.5 |
1.0 |
0.2 |
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)
| 
