Database: Wind Shock Analysis
Event ID: 20012391938
Observation time: 08/27/2001 239.81835 1938 [UT]
|
|
General
Information (About, Top)
| Year |
2001 |
| Fractional day of year |
239.818351 |
| Arrival time of shock [seconds of day] |
70705.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
42.550 |
| Y GSE location of spacecraft [Re] |
306.839 |
| Z GSE location of spacecraft [Re] |
18.420 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0216 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0230 |
| Minimum chisq/dof for RH8,RH9,RH10 |
8.20, 20.86, 22.00 |
Event added to database
|
Mon Feb 14 11:14:56 2005
|
Event last processed
|
Mon Mar 30 21:27:55 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
7.417 ± 2.107
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-431.0 ± 1.9 |
-555.5 ± 8.0 |
| Vy GSE [km/s] |
5.9 ± 8.8 |
-59.9 ± 7.7 |
| Vz GSE [km/s] |
-19.4 ± 4.6 |
54.9 ± 7.9 |
| Wi [km/s] |
45.5 ± 2.4 |
77.5 ± 3.4 |
| We [km/s] |
1440.1 ± 74.7 |
2451.0 ± 107.4 |
| Ni [n/cc] |
4.8 ± 0.3 |
13.3 ± 0.5 |
| Bx GSE [nT] |
6.2 ± 0.3 |
8.7 ± 1.2 |
| By GSE [nT] |
-2.9 ± 0.9 |
-15.6 ± 1.2 |
| Bz GSE [nT] |
0.6 ± 0.6 |
1.3 ± 1.4 |
Plasma Beta
|
0.433 ± 0.421
|
0.525 ± 0.484
|
Sound Speed [km/s]
|
58.79 ± 3.05
|
100.06 ± 4.39
|
Alfven Speed [km/s]
|
69.52 ± 3.19
|
107.76 ± 5.32
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.982 ± 0.020 |
-0.188 ± 0.099 |
-0.033 ± 0.033 |
-1.87 ± 9.73 |
190.84 ± 5.80 |
| VC |
-0.782 ± 0.042 |
-0.413 ± 0.060 |
0.467 ± 0.430 |
27.83 ± 3.96 |
207.81 ± 4.28 |
| MX1 |
-0.935 ± 0.044 |
-0.159 ± 0.065 |
0.318 ± 0.307 |
18.54 ± 7.76 |
189.66 ± 3.96 |
| MX2 |
-0.888 ± 0.026 |
-0.151 ± 0.051 |
0.434 ± 0.404 |
25.70 ± 3.30 |
189.65 ± 3.30 |
| MX3 |
-0.867 ± 0.024 |
-0.147 ± 0.047 |
0.476 ± 0.436 |
28.41 ± 2.75 |
189.62 ± 3.09 |
| RH08 |
-0.902 ± 0.006 |
-0.039 ± 0.008 |
0.430 ± 0.401 |
25.48 ± 0.79 |
182.51 ± 0.54 |
| RH09 |
-0.931 ± 0.026 |
0.041 ± 0.065 |
0.363 ± 0.346 |
21.29 ± 4.10 |
177.49 ± 4.03 |
| RH10 |
-0.926 ± 0.027 |
0.041 ± 0.067 |
0.374 ± 0.356 |
21.98 ± 4.06 |
177.49 ± 4.15 |
| Average |
-0.902 |
-0.127 |
0.354 |
20.920 |
188.134 |
| Median |
-0.902 |
-0.147 |
0.430 |
25.478 |
189.653 |
| Deviation |
0.059 |
0.147 |
0.165 |
9.812 |
9.705 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
36.5 ± 7.1 |
630.5 ± 13.0 |
2.77 ± 0.16 |
| VC |
61.0 ± 4.1 |
574.5 ± 9.3 |
2.77 ± 0.16 |
| MX1 |
42.2 ± 3.9 |
632.0 ± 9.9 |
2.77 ± 0.16 |
| MX2 |
46.2 ± 3.3 |
612.9 ± 8.9 |
2.77 ± 0.16 |
| MX3 |
47.9 ± 3.1 |
603.0 ± 8.5 |
2.77 ± 0.16 |
| RH08 |
41.4 ± 2.9 |
609.8 ± 8.8 |
2.77 ± 0.16 |
| RH09 |
35.3 ± 2.9 |
614.4 ± 9.3 |
2.77 ± 0.16 |
| RH10 |
35.8 ± 2.9 |
612.7 ± 9.2 |
2.77 ± 0.16 |
| Average |
43.3 |
611.2 |
2.77 |
| Median |
42.2 |
612.9 |
2.77 |
| Deviation |
8.6 |
17.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
207.9 ± 3.0 |
40.2 ± 1.3 |
55.9 ± 2.6 |
81.8 ± 2.7 |
5.18 ± 0.19 |
2.55 ± 0.10 |
| VC |
248.9 ± 3.1 |
22.4 ± 0.7 |
33.7 ± 1.5 |
88.3 ± 2.9 |
11.12 ± 0.45 |
2.82 ± 0.12 |
| MX1 |
236.3 ± 1.9 |
36.1 ± 1.2 |
51.5 ± 2.4 |
83.6 ± 2.8 |
6.54 ± 0.22 |
2.83 ± 0.10 |
| MX2 |
239.3 ± 1.7 |
33.3 ± 1.1 |
48.1 ± 2.2 |
84.8 ± 2.8 |
7.19 ± 0.24 |
2.83 ± 0.10 |
| MX3 |
239.4 ± 1.7 |
32.1 ± 1.0 |
46.6 ± 2.1 |
85.2 ± 2.8 |
7.46 ± 0.25 |
2.81 ± 0.09 |
| RH8 |
229.7 ± 1.7 |
36.8 ± 1.2 |
52.2 ± 2.4 |
83.3 ± 2.8 |
6.25 ± 0.20 |
2.76 ± 0.08 |
| RH9 |
220.1 ± 1.9 |
40.9 ± 1.4 |
56.7 ± 2.6 |
81.4 ± 2.7 |
5.38 ± 0.16 |
2.71 ± 0.08 |
| RH10 |
220.5 ± 1.9 |
40.6 ± 1.3 |
56.4 ± 2.6 |
81.5 ± 2.7 |
5.43 ± 0.16 |
2.71 ± 0.08 |
| Average |
230.3 |
35.3 |
50.1 |
83.8 |
6.8 |
2.8 |
| Median |
236.3 |
36.8 |
52.2 |
83.6 |
6.5 |
2.8 |
| Deviation |
13.3 |
6.2 |
7.6 |
2.3 |
1.9 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
75.8 ± 7.8 |
65.8 ± 1.2 |
86.7 ± 4.3 |
131.7 ± 2.1 |
1.15 ± 0.12 |
0.58 ± 0.06 |
| VC |
89.6 ± 3.3 |
36.6 ± 0.7 |
52.2 ± 2.6 |
142.6 ± 2.3 |
2.45 ± 0.11 |
0.63 ± 0.03 |
| MX1 |
85.8 ± 5.7 |
59.1 ± 1.1 |
79.8 ± 3.9 |
134.8 ± 2.2 |
1.45 ± 0.10 |
0.64 ± 0.04 |
| MX2 |
86.5 ± 4.9 |
54.5 ± 1.0 |
74.5 ± 3.7 |
136.7 ± 2.2 |
1.59 ± 0.10 |
0.63 ± 0.04 |
| MX3 |
86.3 ± 4.7 |
52.5 ± 1.0 |
72.3 ± 3.6 |
137.5 ± 2.2 |
1.64 ± 0.10 |
0.63 ± 0.04 |
| RH8 |
82.8 ± 5.5 |
60.2 ± 1.1 |
80.9 ± 4.0 |
134.3 ± 2.2 |
1.38 ± 0.10 |
0.62 ± 0.04 |
| RH9 |
79.9 ± 6.2 |
67.0 ± 1.3 |
87.9 ± 4.3 |
131.0 ± 2.1 |
1.19 ± 0.10 |
0.61 ± 0.05 |
| RH10 |
79.9 ± 6.2 |
66.5 ± 1.3 |
87.4 ± 4.3 |
131.3 ± 2.1 |
1.20 ± 0.10 |
0.61 ± 0.05 |
| Average |
83.3 |
57.8 |
77.7 |
135.0 |
1.5 |
0.6 |
| Median |
85.8 |
60.2 |
80.9 |
134.8 |
1.5 |
0.6 |
| Deviation |
4.6 |
10.1 |
11.8 |
3.9 |
0.4 |
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)
| 
