Database: Wind Shock Analysis
Event ID: 20151141817
Observation time: 04/24/2015 114.76238 1817 [UT]
|
|
General
Information (About, Top)
| Year |
2015 |
| Fractional day of year |
114.762378 |
| Arrival time of shock [seconds of day] |
65869.5 ± 110.0 |
| Shock type |
NN |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
250.521 |
| Y GSE location of spacecraft [Re] |
-68.045 |
| Z GSE location of spacecraft [Re] |
16.836 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0159 |
| Downstream plasma points selected for analysis |
0003
|
| Downstream field points selected for analysis |
0114 |
| Minimum chisq/dof for RH8,RH9,RH10 |
20.18, 25.96, 33.81 |
Event added to database
|
Thu Jan 28 14:29:23 2016
|
Event last processed
|
Tue May 17 16:46:00 2016
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
22.936 ± 5.851
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-352.9 ± 0.6 |
-369.8 ± 0.5 |
| Vy GSE [km/s] |
-20.8 ± 2.4 |
-8.6 ± 1.4 |
| Vz GSE [km/s] |
-1.0 ± 3.3 |
8.8 ± 0.2 |
| Wi [km/s] |
21.8 ± 1.0 |
27.9 ± 0.1 |
| We [km/s] |
690.0 ± 31.6 |
882.2 ± 4.4 |
| Ni [n/cc] |
2.8 ± 0.2 |
4.1 ± 0.1 |
| Bx GSE [nT] |
-4.3 ± 0.1 |
-3.3 ± 0.1 |
| By GSE [nT] |
1.6 ± 0.2 |
0.5 ± 0.1 |
| Bz GSE [nT] |
-0.0 ± 0.2 |
-2.3 ± 0.0 |
Plasma Beta
|
0.134 ± 0.133
|
0.412 ± 0.413
|
Sound Speed [km/s]
|
28.17 ± 1.29
|
36.01 ± 0.18
|
Alfven Speed [km/s]
|
59.85 ± 1.80
|
43.48 ± 0.29
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.869 ± 0.026 |
0.170 ± 0.036 |
-0.464 ± 0.427 |
-27.65 ± 3.21 |
168.92 ± 2.36 |
| VC |
-0.738 ± 0.062 |
0.531 ± 0.075 |
0.417 ± 0.391 |
24.62 ± 5.82 |
144.26 ± 5.53 |
| MX1 |
-0.894 ± 0.024 |
0.100 ± 0.074 |
-0.437 ± 0.407 |
-25.89 ± 2.93 |
173.64 ± 4.76 |
| MX2 |
-0.866 ± 0.026 |
0.178 ± 0.036 |
-0.467 ± 0.430 |
-27.85 ± 3.16 |
168.37 ± 2.38 |
| MX3 |
-0.813 ± 0.037 |
0.292 ± 0.060 |
-0.504 ± 0.456 |
-30.26 ± 3.62 |
160.24 ± 4.13 |
| RH08 |
-0.420 ± 0.032 |
-0.850 ± 0.017 |
0.318 ± 0.307 |
18.57 ± 1.40 |
243.68 ± 2.15 |
| RH09 |
-0.405 ± 0.060 |
-0.857 ± 0.032 |
0.318 ± 0.307 |
18.57 ± 2.82 |
244.68 ± 4.00 |
| RH10 |
-0.405 ± 0.062 |
-0.857 ± 0.033 |
0.318 ± 0.307 |
18.57 ± 3.09 |
244.68 ± 4.13 |
| Average |
-0.676 |
-0.162 |
-0.062 |
-3.915 |
193.559 |
| Median |
-0.738 |
0.170 |
0.318 |
18.568 |
173.638 |
| Deviation |
0.225 |
0.588 |
0.435 |
25.756 |
42.957 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
28.9 ± 3.3 |
339.2 ± 1.9 |
1.41 ± 0.07 |
| VC |
28.8 ± 3.5 |
322.9 ± 2.2 |
1.41 ± 0.07 |
| MX1 |
29.2 ± 3.5 |
348.5 ± 1.9 |
1.41 ± 0.07 |
| MX2 |
28.9 ± 3.3 |
337.9 ± 1.9 |
1.41 ± 0.07 |
| MX3 |
29.9 ± 2.9 |
317.7 ± 1.9 |
1.41 ± 0.07 |
| RH08 |
85.3 ± 2.0 |
166.1 ± 1.1 |
1.41 ± 0.07 |
| RH09 |
86.2 ± 2.0 |
159.9 ± 1.1 |
1.41 ± 0.07 |
| RH10 |
86.2 ± 2.0 |
159.9 ± 4.3 |
1.41 ± 0.07 |
| Average |
50.4 |
269.0 |
1.41 |
| Median |
29.9 |
322.9 |
1.41 |
| Deviation |
29.4 |
89.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
35.4 ± 1.2 |
23.9 ± 1.0 |
52.4 ± 1.6 |
61.7 ± 1.6 |
1.48 ± 0.06 |
0.57 ± 0.02 |
| VC |
73.9 ± 2.8 |
24.0 ± 1.0 |
52.4 ± 1.6 |
61.7 ± 1.6 |
3.09 ± 0.22 |
1.20 ± 0.04 |
| MX1 |
34.6 ± 1.2 |
23.8 ± 1.0 |
52.2 ± 1.6 |
61.7 ± 1.6 |
1.45 ± 0.06 |
0.56 ± 0.02 |
| MX2 |
35.5 ± 1.2 |
23.9 ± 1.0 |
52.4 ± 1.6 |
61.7 ± 1.6 |
1.49 ± 0.06 |
0.58 ± 0.02 |
| MX3 |
36.4 ± 1.3 |
23.6 ± 1.0 |
51.9 ± 1.6 |
61.8 ± 1.6 |
1.54 ± 0.07 |
0.59 ± 0.02 |
| RH8 |
0.4 ± 1.3 |
2.1 ± 0.1 |
4.9 ± 0.1 |
66.1 ± 1.4 |
0.18 ± 0.61 |
0.01 ± 0.02 |
| RH9 |
-0.7 ± 1.3 |
1.7 ± 0.1 |
4.0 ± 0.1 |
66.1 ± 1.4 |
-0.40 ± 0.78 |
-0.01 ± 0.02 |
| RH10 |
-0.7 ± 1.3 |
1.7 ± 0.1 |
4.0 ± 0.1 |
66.1 ± 1.4 |
-0.40 ± 0.78 |
-0.01 ± 0.02 |
| Average |
26.9 |
15.6 |
34.3 |
63.4 |
1.1 |
0.4 |
| Median |
35.4 |
23.8 |
52.2 |
61.8 |
1.5 |
0.6 |
| Deviation |
26.0 |
11.4 |
24.8 |
2.3 |
1.2 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
23.2 ± 0.3 |
27.9 ± 0.1 |
38.1 ± 0.3 |
49.1 ± 0.3 |
0.83 ± 0.01 |
0.47 ± 0.01 |
| VC |
50.9 ± 0.4 |
28.0 ± 0.1 |
38.1 ± 0.3 |
49.0 ± 0.3 |
1.82 ± 0.02 |
1.04 ± 0.01 |
| MX1 |
22.6 ± 0.4 |
27.8 ± 0.1 |
37.9 ± 0.2 |
49.1 ± 0.3 |
0.81 ± 0.01 |
0.46 ± 0.01 |
| MX2 |
23.3 ± 0.3 |
27.9 ± 0.1 |
38.1 ± 0.3 |
49.1 ± 0.3 |
0.83 ± 0.01 |
0.47 ± 0.01 |
| MX3 |
24.0 ± 0.1 |
27.5 ± 0.1 |
37.7 ± 0.2 |
49.3 ± 0.3 |
0.87 ± 0.01 |
0.49 ± 0.00 |
| RH8 |
0.6 ± 1.3 |
2.3 ± 0.0 |
3.6 ± 0.0 |
56.4 ± 0.3 |
0.27 ± 0.58 |
0.01 ± 0.02 |
| RH9 |
-0.1 ± 1.3 |
1.8 ± 0.0 |
2.9 ± 0.0 |
56.4 ± 0.3 |
-0.06 ± 0.73 |
-0.00 ± 0.02 |
| RH10 |
-0.1 ± 1.3 |
1.8 ± 0.0 |
2.9 ± 0.0 |
56.4 ± 0.3 |
-0.06 ± 0.73 |
-0.00 ± 0.02 |
| Average |
18.1 |
18.1 |
24.9 |
51.9 |
0.7 |
0.4 |
| Median |
23.2 |
27.8 |
37.9 |
49.3 |
0.8 |
0.5 |
| Deviation |
17.5 |
13.4 |
18.0 |
3.8 |
0.6 |
0.4 |
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)
| 
