Database: Wind Shock Analysis
Event ID: 20171400909
Observation time: 05/20/2017 140.38143 0909 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
140.381428 |
| Arrival time of shock [seconds of day] |
32955.4 ± 60.0 |
| Shock type |
FR |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
205.602 |
| Y GSE location of spacecraft [Re] |
-74.486 |
| Z GSE location of spacecraft [Re] |
-1.774 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0140 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0260 |
| Minimum chisq/dof for RH8,RH9,RH10 |
13.67, 19.70, 21.94 |
Event added to database
|
Tue Oct 24 12:25:09 2017
|
Event last processed
|
Tue Oct 24 13:16:40 2017
|
Method selected
|
MX3
|
Propagation delay to Earth [minutes]
|
44.393 ± 6.661
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-609.9 ± 7.3 |
-716.4 ± 7.2 |
| Vy GSE [km/s] |
66.3 ± 7.8 |
-1.5 ± 3.1 |
| Vz GSE [km/s] |
66.1 ± 16.1 |
-7.9 ± 10.9 |
| Wi [km/s] |
87.6 ± 12.6 |
63.5 ± 1.9 |
| We [km/s] |
2771.0 ± 397.1 |
2007.8 ± 61.1 |
| Ni [n/cc] |
5.9 ± 1.0 |
3.0 ± 0.1 |
| Bx GSE [nT] |
-1.5 ± 0.8 |
4.1 ± 0.6 |
| By GSE [nT] |
4.6 ± 3.2 |
-4.1 ± 0.3 |
| Bz GSE [nT] |
6.6 ± 1.7 |
-1.0 ± 0.8 |
Plasma Beta
|
1.883 ± 0.973
|
0.710 ± 0.693
|
Sound Speed [km/s]
|
113.12 ± 16.21
|
81.97 ± 2.49
|
Alfven Speed [km/s]
|
79.39 ± 23.90
|
75.56 ± 2.91
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.715 ± 0.151 |
0.273 ± 0.300 |
-0.643 ± 0.535 |
-40.03 ± 9.48 |
159.11 ± 23.82 |
| VC |
-0.730 ± 0.056 |
-0.466 ± 0.059 |
-0.500 ± 0.454 |
-30.01 ± 6.18 |
212.54 ± 4.05 |
| MX1 |
-0.885 ± 0.065 |
-0.336 ± 0.144 |
-0.323 ± 0.311 |
-18.83 ± 6.84 |
200.78 ± 9.25 |
| MX2 |
-0.883 ± 0.042 |
-0.234 ± 0.110 |
-0.407 ± 0.383 |
-24.01 ± 4.34 |
194.84 ± 7.12 |
| MX3 |
-0.886 ± 0.052 |
-0.289 ± 0.120 |
-0.363 ± 0.346 |
-21.28 ± 5.63 |
198.06 ± 7.72 |
| RH08 |
-0.112 ± 0.013 |
-0.684 ± 0.007 |
0.721 ± 0.558 |
46.11 ± 0.50 |
260.72 ± 1.12 |
| RH09 |
-0.124 ± 0.072 |
-0.682 ± 0.047 |
0.721 ± 0.558 |
46.11 ± 3.65 |
259.72 ± 5.99 |
| RH10 |
-0.100 ± 0.070 |
-0.686 ± 0.051 |
0.721 ± 0.558 |
46.11 ± 4.00 |
261.73 ± 5.85 |
| Average |
-0.554 |
-0.388 |
-0.009 |
0.522 |
218.437 |
| Median |
-0.715 |
-0.336 |
-0.323 |
-18.826 |
212.544 |
| Deviation |
0.373 |
0.326 |
0.612 |
38.290 |
38.182 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
75.2 ± 11.9 |
307.9 ± 5.5 |
0.51 ± 0.08 |
| VC |
59.9 ± 6.0 |
240.6 ± 8.8 |
0.51 ± 0.08 |
| MX1 |
74.3 ± 5.4 |
359.0 ± 9.1 |
0.51 ± 0.08 |
| MX2 |
73.3 ± 3.8 |
360.0 ± 8.7 |
0.51 ± 0.08 |
| MX3 |
73.8 ± 4.5 |
361.1 ± 8.9 |
0.51 ± 0.08 |
| RH08 |
74.7 ± 22.1 |
75.5 ± 4.1 |
0.51 ± 0.08 |
| RH09 |
74.5 ± 22.1 |
81.3 ± 4.1 |
0.51 ± 0.08 |
| RH10 |
74.9 ± 22.1 |
69.1 ± 25.0 |
0.51 ± 0.08 |
| Average |
72.6 |
231.8 |
0.51 |
| Median |
74.5 |
307.9 |
0.51 |
| Deviation |
5.1 |
135.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-103.9 ± 7.8 |
15.9 ± 3.1 |
20.3 ± 6.1 |
139.5 ± 7.5 |
-6.71 ± 1.23 |
-0.75 ± 0.07 |
| VC |
-140.6 ± 8.1 |
31.9 ± 6.3 |
39.8 ± 12.0 |
136.6 ± 7.5 |
-4.54 ± 0.87 |
-1.03 ± 0.08 |
| MX1 |
-137.1 ± 5.8 |
16.9 ± 3.3 |
21.5 ± 6.5 |
139.4 ± 7.5 |
-8.36 ± 1.67 |
-0.99 ± 0.07 |
| MX2 |
-136.1 ± 6.1 |
17.9 ± 3.5 |
22.8 ± 6.9 |
139.2 ± 7.5 |
-7.83 ± 1.54 |
-0.98 ± 0.07 |
| MX3 |
-136.1 ± 5.9 |
17.4 ± 3.4 |
22.1 ± 6.7 |
139.3 ± 7.5 |
-8.06 ± 1.59 |
-0.98 ± 0.07 |
| RH8 |
5.1 ± 10.6 |
16.5 ± 3.2 |
21.0 ± 6.3 |
139.4 ± 7.5 |
0.27 ± 0.59 |
0.04 ± 0.08 |
| RH9 |
3.4 ± 10.6 |
16.7 ± 3.2 |
21.2 ± 6.4 |
139.4 ± 7.5 |
0.16 ± 0.60 |
0.03 ± 0.08 |
| RH10 |
6.1 ± 10.5 |
16.3 ± 3.1 |
20.7 ± 6.2 |
139.5 ± 7.5 |
0.34 ± 0.59 |
0.04 ± 0.08 |
| Average |
-79.9 |
18.7 |
23.7 |
139.0 |
-4.3 |
-0.6 |
| Median |
-103.9 |
16.9 |
21.5 |
139.4 |
-4.5 |
-0.7 |
| Deviation |
71.1 |
5.4 |
6.5 |
1.0 |
4.0 |
0.5 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-209.2 ± 10.8 |
14.3 ± 0.3 |
19.3 ± 0.7 |
110.6 ± 2.4 |
-14.66 ± 1.04 |
-1.89 ± 0.13 |
| VC |
-287.0 ± 10.3 |
28.8 ± 0.7 |
37.8 ± 1.5 |
107.7 ± 2.3 |
-9.98 ± 0.55 |
-2.67 ± 0.14 |
| MX1 |
-278.0 ± 9.5 |
15.2 ± 0.4 |
20.5 ± 0.8 |
110.5 ± 2.4 |
-18.34 ± 0.98 |
-2.52 ± 0.13 |
| MX2 |
-276.2 ± 10.1 |
16.1 ± 0.4 |
21.7 ± 0.8 |
110.4 ± 2.4 |
-17.18 ± 0.96 |
-2.50 ± 0.13 |
| MX3 |
-276.9 ± 9.8 |
15.6 ± 0.4 |
21.1 ± 0.8 |
110.4 ± 2.4 |
-17.73 ± 0.97 |
-2.51 ± 0.13 |
| RH8 |
0.1 ± 7.7 |
14.8 ± 0.4 |
20.0 ± 0.8 |
110.5 ± 2.4 |
0.01 ± 0.52 |
0.00 ± 0.07 |
| RH9 |
-2.7 ± 7.7 |
15.0 ± 0.4 |
20.2 ± 0.8 |
110.5 ± 2.4 |
-0.17 ± 0.51 |
-0.02 ± 0.07 |
| RH10 |
2.3 ± 7.8 |
14.6 ± 0.3 |
19.7 ± 0.8 |
110.6 ± 2.4 |
0.16 ± 0.53 |
0.02 ± 0.07 |
| Average |
-166.0 |
16.8 |
22.5 |
110.1 |
-9.7 |
-1.5 |
| Median |
-209.2 |
15.2 |
20.5 |
110.5 |
-10.0 |
-1.9 |
| Deviation |
139.4 |
4.9 |
6.2 |
1.0 |
8.5 |
1.3 |
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)
| 
