Database: Wind Shock Analysis
Event ID: 20110491950
Observation time: 02/18/2011 49.82700 1950 [UT]
|
|
General
Information (About, Top)
| Year |
2011 |
| Fractional day of year |
49.826997 |
| Arrival time of shock [seconds of day] |
71452.5 ± 20.0 |
| Shock type |
SF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
195.357 |
| Y GSE location of spacecraft [Re] |
17.283 |
| Z GSE location of spacecraft [Re] |
-19.824 |
| Upstream plasma points selected for analysis |
0002 |
| Upstream field points selected for analysis |
0113 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0165 |
| Minimum chisq/dof for RH8,RH9,RH10 |
Infinity, -2199.93, -1118.40 |
Event added to database
|
Fri Sep 20 09:57:16 2013
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Event last processed
|
Tue Sep 24 10:04:38 2013
|
Method selected
|
RH10
|
Propagation delay to Earth [minutes]
|
35.190 ± 5.968
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-480.0 ± 4.2 |
-593.7 ± 5.9 |
| Vy GSE [km/s] |
32.0 ± 56.3 |
87.3 ± 8.8 |
| Vz GSE [km/s] |
-35.6 ± 17.8 |
-76.8 ± 9.2 |
| Wi [km/s] |
171.7 ± 2.3 |
39.3 ± 5.6 |
| We [km/s] |
5428.2 ± 72.6 |
1242.5 ± 178.3 |
| Ni [n/cc] |
3.1 ± 0.3 |
1.0 ± 0.1 |
| Bx GSE [nT] |
-4.4 ± 1.8 |
-12.3 ± 0.5 |
| By GSE [nT] |
-2.8 ± 2.3 |
4.2 ± 0.8 |
| Bz GSE [nT] |
-4.2 ± 0.3 |
-4.7 ± 0.6 |
Plasma Beta
|
3.917 ± 4.214
|
0.017 ± 0.016
|
Sound Speed [km/s]
|
221.60 ± 2.97
|
50.73 ± 7.28
|
Alfven Speed [km/s]
|
86.89 ± 3.50
|
300.95 ± 8.22
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.487 ± 0.052 |
-0.599 ± 0.045 |
-0.636 ± 0.532 |
-39.48 ± 2.67 |
230.89 ± 4.60 |
| VC |
-0.873 ± 0.126 |
0.392 ± 0.276 |
-0.291 ± 0.282 |
-16.92 ± 5.03 |
155.83 ± 18.08 |
| MX1 |
-0.420 ± 0.084 |
-0.535 ± 0.096 |
-0.733 ± 0.560 |
-47.16 ± 8.76 |
231.90 ± 5.15 |
| MX2 |
-0.664 ± 0.077 |
-0.736 ± 0.071 |
0.133 ± 0.133 |
7.67 ± 15.96 |
227.96 ± 5.64 |
| MX3 |
-0.371 ± 0.278 |
-0.528 ± 0.375 |
-0.764 ± 0.561 |
-49.83 ± 33.83 |
234.87 ± 10.75 |
| RH08 |
-0.000 ± 0.000 |
-0.000 ± 0.000 |
-1.000 ± 0.000 |
-90.00 ± 0.00 |
0.00 ± 104.36 |
| RH09 |
-0.459 ± 0.061 |
0.888 ± 0.032 |
-0.006 ± 0.006 |
-0.32 ± 4.05 |
117.33 ± 3.94 |
| RH10 |
-0.459 ± 0.061 |
0.888 ± 0.032 |
-0.006 ± 0.006 |
-0.32 ± 4.05 |
117.33 ± 3.94 |
| Average |
-0.467 |
-0.029 |
-0.413 |
-29.544 |
164.512 |
| Median |
-0.459 |
-0.000 |
-0.291 |
-16.918 |
227.958 |
| Deviation |
0.249 |
0.675 |
0.425 |
33.226 |
84.105 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
17.0 ± 20.5 |
234.8 ± 9.5 |
0.33 ± 0.04 |
| VC |
53.5 ± 24.0 |
405.5 ± 12.6 |
0.33 ± 0.04 |
| MX1 |
20.4 ± 17.2 |
201.8 ± 7.2 |
0.33 ± 0.04 |
| MX2 |
50.8 ± 5.2 |
317.8 ± 19.3 |
0.33 ± 0.04 |
| MX3 |
22.8 ± 17.1 |
180.4 ± 6.7 |
0.33 ± 0.04 |
| RH08 |
53.2 ± 3.2 |
31.3 ± 8.5 |
0.33 ± 0.04 |
| RH09 |
86.4 ± 23.6 |
249.3 ± 22.4 |
0.33 ± 0.04 |
| RH10 |
86.4 ± 23.6 |
249.3 ± 59.3 |
0.33 ± 0.04 |
| Average |
48.8 |
233.8 |
0.33 |
| Median |
53.2 |
249.3 |
0.33 |
| Deviation |
27.7 |
108.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-2.5 ± 24.5 |
82.5 ± 3.2 |
83.1 ± 3.3 |
223.3 ± 2.8 |
-0.02 ± 0.30 |
-0.01 ± 0.11 |
| VC |
-36.4 ± 23.6 |
49.2 ± 1.7 |
51.7 ± 2.1 |
232.9 ± 1.9 |
-0.75 ± 0.51 |
-0.16 ± 0.10 |
| MX1 |
-8.6 ± 18.9 |
80.6 ± 3.1 |
81.4 ± 3.3 |
224.0 ± 2.7 |
-0.10 ± 0.23 |
-0.04 ± 0.08 |
| MX2 |
27.5 ± 46.6 |
52.4 ± 1.8 |
54.9 ± 2.2 |
232.2 ± 1.9 |
0.54 ± 0.91 |
0.12 ± 0.20 |
| MX3 |
-8.1 ± 17.7 |
79.0 ± 3.1 |
80.1 ± 3.2 |
224.5 ± 2.6 |
-0.10 ± 0.22 |
-0.04 ± 0.08 |
| RH8 |
-4.3 ± 17.8 |
49.6 ± 1.7 |
52.1 ± 2.1 |
232.8 ± 1.9 |
-0.09 ± 0.36 |
-0.02 ± 0.08 |
| RH9 |
0.4 ± 48.2 |
5.1 ± 0.2 |
5.4 ± 0.2 |
238.0 ± 1.5 |
-0.09 ± 9.55 |
0.00 ± 0.20 |
| RH10 |
0.4 ± 48.2 |
5.1 ± 0.2 |
5.4 ± 0.2 |
238.0 ± 1.5 |
-0.09 ± 9.55 |
0.00 ± 0.20 |
| Average |
-4.0 |
50.4 |
51.8 |
230.7 |
-0.1 |
-0.0 |
| Median |
-2.5 |
52.4 |
54.9 |
232.8 |
-0.1 |
-0.0 |
| Deviation |
17.4 |
31.3 |
31.6 |
6.0 |
0.3 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-50.9 ± 6.2 |
48.4 ± 6.9 |
287.8 ± 7.9 |
301.3 ± 8.2 |
-1.06 ± 0.11 |
-0.17 ± 0.02 |
| VC |
-169.3 ± 1.5 |
29.9 ± 4.2 |
179.2 ± 4.9 |
303.8 ± 8.3 |
-5.73 ± 0.67 |
-0.56 ± 0.01 |
| MX1 |
-56.9 ± 5.9 |
47.5 ± 6.8 |
282.1 ± 7.7 |
301.5 ± 8.2 |
-1.21 ± 0.10 |
-0.19 ± 0.02 |
| MX2 |
-1.7 ± 11.1 |
31.8 ± 4.5 |
190.3 ± 5.2 |
303.6 ± 8.3 |
-0.06 ± 0.38 |
-0.01 ± 0.04 |
| MX3 |
-52.6 ± 5.9 |
46.7 ± 6.7 |
277.4 ± 7.6 |
301.6 ± 8.2 |
-1.13 ± 0.08 |
-0.17 ± 0.02 |
| RH8 |
-45.5 ± 9.2 |
30.1 ± 4.2 |
180.4 ± 4.9 |
303.8 ± 8.3 |
-1.51 ± 0.23 |
-0.15 ± 0.03 |
| RH9 |
-101.2 ± 5.3 |
3.1 ± 0.4 |
18.8 ± 0.5 |
305.2 ± 8.4 |
-32.85 ± 4.63 |
-0.33 ± 0.02 |
| RH10 |
-101.2 ± 5.3 |
3.1 ± 0.4 |
18.8 ± 0.5 |
305.2 ± 8.4 |
-32.85 ± 4.63 |
-0.33 ± 0.02 |
| Average |
-72.4 |
30.1 |
179.4 |
303.3 |
-9.5 |
-0.2 |
| Median |
-52.6 |
31.8 |
190.3 |
303.8 |
-1.2 |
-0.2 |
| Deviation |
50.5 |
18.4 |
109.3 |
1.6 |
14.5 |
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 Fri Jun 13 11:06:02 2014
Michael L Stevens
(mstevens@cfa.harvard.edu)
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