Database: Wind Shock Analysis
Event ID: 20081211502
Observation time: 04/30/2008 121.62655 1502 [UT]
|
|
General
Information (About, Top)
| Year |
2008 |
| Fractional day of year |
121.626545 |
| Arrival time of shock [seconds of day] |
54133.5 ± 20.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
226.050 |
| Y GSE location of spacecraft [Re] |
98.544 |
| Z GSE location of spacecraft [Re] |
7.116 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0211 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0116 |
| Minimum chisq/dof for RH8,RH9,RH10 |
5.41, 8.23, 9.10 |
Event added to database
|
Wed Sep 25 11:03:55 2013
|
Event last processed
|
Wed Sep 25 17:04:56 2013
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
51.892 ± 1.393
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-379.9 ± 2.5 |
-405.7 ± 3.1 |
| Vy GSE [km/s] |
-24.5 ± 1.7 |
-32.6 ± 1.6 |
| Vz GSE [km/s] |
-12.8 ± 2.6 |
-12.6 ± 4.1 |
| Wi [km/s] |
28.5 ± 0.7 |
32.8 ± 0.7 |
| We [km/s] |
901.8 ± 20.7 |
1038.7 ± 23.4 |
| Ni [n/cc] |
5.0 ± 0.1 |
8.5 ± 1.0 |
| Bx GSE [nT] |
2.1 ± 0.1 |
1.5 ± 0.3 |
| By GSE [nT] |
-2.2 ± 0.1 |
-4.1 ± 0.5 |
| Bz GSE [nT] |
-0.4 ± 0.3 |
-0.8 ± 0.6 |
Plasma Beta
|
0.893 ± 0.902
|
1.036 ± 0.914
|
Sound Speed [km/s]
|
36.82 ± 0.85
|
42.41 ± 0.96
|
Alfven Speed [km/s]
|
30.26 ± 1.04
|
33.76 ± 5.72
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.933 ± 0.077 |
0.355 ± 0.201 |
0.065 ± 0.065 |
3.73 ± 12.58 |
159.17 ± 12.33 |
| VC |
-0.952 ± 0.030 |
-0.306 ± 0.092 |
0.010 ± 0.010 |
0.55 ± 9.32 |
197.79 ± 5.56 |
| MX1 |
-0.941 ± 0.070 |
0.322 ± 0.203 |
0.101 ± 0.100 |
5.79 ± 7.25 |
161.09 ± 12.34 |
| MX2 |
-0.945 ± 0.066 |
0.306 ± 0.203 |
0.112 ± 0.112 |
6.45 ± 4.82 |
162.05 ± 12.30 |
| MX3 |
-0.952 ± 0.061 |
0.283 ± 0.202 |
0.121 ± 0.120 |
6.94 ± 5.15 |
163.46 ± 12.16 |
| RH08 |
-0.989 ± 0.007 |
0.148 ± 0.048 |
0.006 ± 0.006 |
0.32 ± 2.45 |
171.48 ± 2.81 |
| RH09 |
-0.979 ± 0.014 |
0.200 ± 0.067 |
-0.050 ± 0.050 |
-2.88 ± 4.06 |
168.47 ± 3.91 |
| RH10 |
-0.979 ± 0.014 |
0.200 ± 0.067 |
-0.050 ± 0.050 |
-2.88 ± 4.06 |
168.47 ± 3.91 |
| Average |
-0.959 |
0.189 |
0.039 |
2.252 |
168.997 |
| Median |
-0.952 |
0.283 |
0.065 |
3.731 |
168.468 |
| Deviation |
0.021 |
0.212 |
0.070 |
4.030 |
12.385 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
26.5 ± 2.4 |
395.9 ± 0.9 |
1.73 ± 0.20 |
| VC |
64.8 ± 2.2 |
436.8 ± 1.1 |
1.73 ± 0.20 |
| MX1 |
28.1 ± 2.4 |
401.5 ± 0.9 |
1.73 ± 0.20 |
| MX2 |
29.0 ± 2.5 |
404.1 ± 1.0 |
1.73 ± 0.20 |
| MX3 |
30.3 ± 2.5 |
408.0 ± 1.0 |
1.73 ± 0.20 |
| RH08 |
39.1 ± 2.3 |
431.3 ± 1.0 |
1.73 ± 0.20 |
| RH09 |
37.0 ± 2.4 |
424.5 ± 1.0 |
1.73 ± 0.20 |
| RH10 |
37.0 ± 2.4 |
424.5 ± 4.2 |
1.73 ± 0.20 |
| Average |
36.5 |
415.8 |
1.73 |
| Median |
37.0 |
424.5 |
1.73 |
| Deviation |
12.4 |
15.3 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
51.1 ± 2.8 |
24.3 ± 0.5 |
27.1 ± 0.9 |
41.0 ± 0.4 |
2.10 ± 0.08 |
1.25 ± 0.07 |
| VC |
67.7 ± 2.2 |
10.2 ± 0.2 |
12.9 ± 0.4 |
46.6 ± 0.4 |
6.65 ± 0.14 |
1.45 ± 0.05 |
| MX1 |
53.1 ± 2.9 |
23.8 ± 0.5 |
26.7 ± 0.9 |
41.3 ± 0.4 |
2.23 ± 0.08 |
1.29 ± 0.07 |
| MX2 |
54.0 ± 2.9 |
23.5 ± 0.5 |
26.5 ± 0.9 |
41.5 ± 0.4 |
2.30 ± 0.08 |
1.30 ± 0.07 |
| MX3 |
55.0 ± 2.9 |
23.0 ± 0.4 |
26.1 ± 0.9 |
41.7 ± 0.4 |
2.39 ± 0.08 |
1.32 ± 0.07 |
| RH8 |
59.4 ± 2.6 |
20.0 ± 0.4 |
23.5 ± 0.8 |
43.3 ± 0.4 |
2.97 ± 0.09 |
1.37 ± 0.06 |
| RH9 |
57.0 ± 2.5 |
20.7 ± 0.4 |
24.2 ± 0.8 |
42.9 ± 0.4 |
2.75 ± 0.08 |
1.33 ± 0.06 |
| RH10 |
57.0 ± 2.5 |
20.7 ± 0.4 |
24.2 ± 0.8 |
42.9 ± 0.4 |
2.75 ± 0.08 |
1.33 ± 0.06 |
| Average |
56.8 |
20.8 |
23.9 |
42.7 |
3.0 |
1.3 |
| Median |
57.0 |
23.0 |
26.1 |
42.9 |
2.8 |
1.3 |
| Deviation |
5.1 |
4.6 |
4.6 |
1.8 |
1.5 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
29.9 ± 3.0 |
27.1 ± 3.6 |
30.2 ± 5.1 |
47.1 ± 1.3 |
1.11 ± 0.09 |
0.63 ± 0.05 |
| VC |
40.7 ± 2.7 |
11.4 ± 1.3 |
14.4 ± 2.4 |
53.2 ± 2.7 |
3.59 ± 0.29 |
0.76 ± 0.04 |
| MX1 |
31.4 ± 2.9 |
26.5 ± 3.5 |
29.8 ± 5.0 |
47.5 ± 1.4 |
1.19 ± 0.10 |
0.66 ± 0.05 |
| MX2 |
32.0 ± 2.9 |
26.2 ± 3.4 |
29.5 ± 5.0 |
47.6 ± 1.5 |
1.23 ± 0.10 |
0.67 ± 0.05 |
| MX3 |
32.7 ± 2.8 |
25.7 ± 3.3 |
29.1 ± 4.9 |
47.9 ± 1.6 |
1.28 ± 0.11 |
0.68 ± 0.05 |
| RH8 |
35.0 ± 3.2 |
22.3 ± 2.7 |
26.2 ± 4.4 |
49.6 ± 2.0 |
1.58 ± 0.13 |
0.71 ± 0.05 |
| RH9 |
33.4 ± 3.4 |
23.1 ± 2.9 |
27.0 ± 4.6 |
49.2 ± 1.9 |
1.45 ± 0.12 |
0.68 ± 0.05 |
| RH10 |
33.4 ± 3.4 |
23.1 ± 2.9 |
27.0 ± 4.6 |
49.2 ± 1.9 |
1.45 ± 0.12 |
0.68 ± 0.05 |
| Average |
33.5 |
23.2 |
26.6 |
48.9 |
1.6 |
0.7 |
| Median |
33.4 |
25.7 |
29.1 |
49.2 |
1.5 |
0.7 |
| Deviation |
3.3 |
5.1 |
5.2 |
2.0 |
0.8 |
0.0 |
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)
| 
