Database: Wind Shock Analysis
Event ID: 20011380940
Observation time: 05/18/2001 138.40314 0940 [UT]
|
|
General
Information (About, Top)
| Year |
2001 |
| Fractional day of year |
138.403142 |
| Arrival time of shock [seconds of day] |
34831.5 ± 5.0 |
| Shock type |
SF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
43.241 |
| Y GSE location of spacecraft [Re] |
-173.502 |
| Z GSE location of spacecraft [Re] |
-9.490 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0214 |
| Downstream plasma points selected for analysis |
0005
|
| Downstream field points selected for analysis |
0162 |
| Minimum chisq/dof for RH8,RH9,RH10 |
11.56, 12.76, 13.46 |
Event added to database
|
Mon Feb 14 11:13:55 2005
|
Event last processed
|
Mon Mar 30 21:02:49 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
-3.666 ± 0.469
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-432.7 ± 3.5 |
-470.3 ± 2.6 |
| Vy GSE [km/s] |
-21.4 ± 4.4 |
9.1 ± 0.7 |
| Vz GSE [km/s] |
-8.2 ± 4.0 |
20.3 ± 1.1 |
| Wi [km/s] |
34.4 ± 5.2 |
46.2 ± 1.4 |
| We [km/s] |
1087.2 ± 165.7 |
1460.7 ± 45.3 |
| Ni [n/cc] |
4.1 ± 0.8 |
9.1 ± 0.5 |
| Bx GSE [nT] |
-3.2 ± 0.3 |
-1.9 ± 0.5 |
| By GSE [nT] |
4.5 ± 0.3 |
0.7 ± 0.1 |
| Bz GSE [nT] |
3.3 ± 0.2 |
0.8 ± 0.4 |
Plasma Beta
|
0.253 ± 0.271
|
10.467 ± 9.266
|
Sound Speed [km/s]
|
44.39 ± 6.76
|
59.63 ± 1.85
|
Alfven Speed [km/s]
|
70.63 ± 6.54
|
15.66 ± 4.64
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.951 ± 0.022 |
-0.308 ± 0.067 |
-0.009 ± 0.009 |
-0.53 ± 11.64 |
197.97 ± 4.02 |
| VC |
-0.672 ± 0.027 |
0.541 ± 0.031 |
0.506 ± 0.457 |
30.37 ± 2.03 |
141.13 ± 2.48 |
| MX1 |
-0.904 ± 0.058 |
-0.402 ± 0.122 |
0.143 ± 0.142 |
8.23 ± 8.82 |
203.98 ± 7.70 |
| MX2 |
-0.963 ± 0.039 |
-0.261 ± 0.120 |
-0.075 ± 0.075 |
-4.32 ± 16.50 |
195.15 ± 7.11 |
| MX3 |
-0.928 ± 0.033 |
-0.364 ± 0.080 |
0.079 ± 0.079 |
4.52 ± 8.15 |
201.39 ± 4.95 |
| RH08 |
-0.928 ± 0.004 |
-0.311 ± 0.009 |
-0.207 ± 0.204 |
-11.93 ± 0.73 |
198.55 ± 0.54 |
| RH09 |
-0.925 ± 0.014 |
-0.311 ± 0.034 |
-0.218 ± 0.214 |
-12.58 ± 2.47 |
198.55 ± 2.11 |
| RH10 |
-0.925 ± 0.018 |
-0.311 ± 0.042 |
-0.218 ± 0.214 |
-12.58 ± 3.14 |
198.55 ± 2.62 |
| Average |
-0.900 |
-0.216 |
0.000 |
0.147 |
191.909 |
| Median |
-0.925 |
-0.311 |
-0.009 |
-0.527 |
198.552 |
| Deviation |
0.094 |
0.309 |
0.247 |
14.580 |
20.680 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
75.4 ± 1.5 |
466.5 ± 8.4 |
2.29 ± 0.57 |
| VC |
13.6 ± 1.8 |
376.7 ± 15.8 |
2.29 ± 0.57 |
| MX1 |
76.0 ± 1.8 |
446.5 ± 8.2 |
2.29 ± 0.57 |
| MX2 |
75.1 ± 1.4 |
470.9 ± 8.4 |
2.29 ± 0.57 |
| MX3 |
75.6 ± 1.7 |
456.9 ± 8.3 |
2.29 ± 0.57 |
| RH08 |
82.1 ± 1.3 |
445.6 ± 6.8 |
2.29 ± 0.57 |
| RH09 |
82.5 ± 1.2 |
443.9 ± 6.7 |
2.29 ± 0.57 |
| RH10 |
82.5 ± 1.2 |
443.9 ± 6.7 |
2.29 ± 0.57 |
| Average |
70.3 |
443.9 |
2.29 |
| Median |
76.0 |
446.5 |
2.29 |
| Deviation |
23.2 |
29.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
48.3 ± 2.2 |
9.4 ± 1.1 |
17.8 ± 1.7 |
83.2 ± 4.7 |
5.19 ± 0.88 |
0.58 ± 0.03 |
| VC |
101.8 ± 6.4 |
42.2 ± 6.2 |
68.7 ± 6.4 |
72.0 ± 6.0 |
2.49 ± 0.61 |
1.42 ± 0.10 |
| MX1 |
47.8 ± 2.2 |
9.1 ± 1.0 |
17.1 ± 1.6 |
83.3 ± 4.7 |
5.36 ± 0.89 |
0.58 ± 0.03 |
| MX2 |
48.2 ± 2.2 |
9.6 ± 1.1 |
18.2 ± 1.7 |
83.2 ± 4.7 |
5.09 ± 0.87 |
0.58 ± 0.04 |
| MX3 |
48.2 ± 2.2 |
9.3 ± 1.1 |
17.5 ± 1.6 |
83.2 ± 4.7 |
5.28 ± 0.88 |
0.58 ± 0.03 |
| RH8 |
35.9 ± 1.6 |
5.1 ± 0.6 |
9.7 ± 0.9 |
83.6 ± 4.7 |
7.15 ± 1.16 |
0.43 ± 0.03 |
| RH9 |
35.2 ± 1.6 |
4.9 ± 0.6 |
9.2 ± 0.9 |
83.6 ± 4.7 |
7.35 ± 1.19 |
0.42 ± 0.03 |
| RH10 |
35.2 ± 1.6 |
4.9 ± 0.6 |
9.2 ± 0.9 |
83.6 ± 4.7 |
7.35 ± 1.19 |
0.42 ± 0.03 |
| Average |
50.1 |
11.8 |
20.9 |
82.0 |
5.7 |
0.6 |
| Median |
48.2 |
9.3 |
17.5 |
83.3 |
5.4 |
0.6 |
| Deviation |
21.8 |
12.5 |
19.7 |
4.0 |
1.6 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
22.1 ± 2.3 |
3.8 ± 1.1 |
4.0 ± 1.2 |
61.6 ± 2.9 |
6.30 ± 2.53 |
0.36 ± 0.05 |
| VC |
45.7 ± 2.4 |
15.2 ± 4.5 |
15.2 ± 4.5 |
59.8 ± 1.9 |
3.26 ± 1.16 |
0.77 ± 0.06 |
| MX1 |
21.9 ± 2.3 |
3.7 ± 1.0 |
3.8 ± 1.1 |
61.6 ± 2.9 |
6.51 ± 2.60 |
0.36 ± 0.05 |
| MX2 |
22.1 ± 2.4 |
3.9 ± 1.1 |
4.0 ± 1.2 |
61.6 ± 2.9 |
6.18 ± 2.48 |
0.36 ± 0.05 |
| MX3 |
22.1 ± 2.3 |
3.7 ± 1.0 |
3.9 ± 1.2 |
61.6 ± 2.9 |
6.42 ± 2.56 |
0.36 ± 0.05 |
| RH8 |
16.3 ± 2.2 |
2.1 ± 0.6 |
2.1 ± 0.6 |
61.7 ± 3.0 |
8.64 ± 3.71 |
0.27 ± 0.05 |
| RH9 |
16.0 ± 2.2 |
2.0 ± 0.5 |
2.0 ± 0.6 |
61.7 ± 3.0 |
8.88 ± 3.83 |
0.26 ± 0.05 |
| RH10 |
16.0 ± 2.2 |
2.0 ± 0.5 |
2.0 ± 0.6 |
61.7 ± 3.0 |
8.88 ± 3.83 |
0.26 ± 0.05 |
| Average |
22.8 |
4.5 |
4.6 |
61.4 |
6.9 |
0.4 |
| Median |
22.1 |
3.7 |
3.9 |
61.6 |
6.5 |
0.4 |
| Deviation |
9.7 |
4.4 |
4.4 |
0.7 |
1.9 |
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)
| 
