Database: Wind Shock Analysis
Event ID: 19970581729
Observation time: 02/27/1997 58.72856 1729 [UT]
|
|
General
Information (About, Top)
| Year |
1997 |
| Fractional day of year |
58.728559 |
| Arrival time of shock [seconds of day] |
62947.5 ± 6.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
217.160 |
| Y GSE location of spacecraft [Re] |
17.754 |
| Z GSE location of spacecraft [Re] |
-10.230 |
| Upstream plasma points selected for analysis |
0011 |
| Upstream field points selected for analysis |
0316 |
| Downstream plasma points selected for analysis |
0011
|
| Downstream field points selected for analysis |
0345 |
| Minimum chisq/dof for RH8,RH9,RH10 |
4.77, 7.48, 7.58 |
Event added to database
|
Mon Feb 14 11:04:02 2005
|
Event last processed
|
Mon Mar 30 16:40:55 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
40.264 ± 2.246
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-440.8 ± 2.9 |
-491.7 ± 14.9 |
| Vy GSE [km/s] |
2.8 ± 5.8 |
-15.3 ± 3.6 |
| Vz GSE [km/s] |
-12.2 ± 14.1 |
-23.7 ± 7.4 |
| Wi [km/s] |
27.8 ± 1.1 |
32.1 ± 2.9 |
| We [km/s] |
878.6 ± 35.7 |
1013.6 ± 90.5 |
| Ni [n/cc] |
1.8 ± 0.1 |
2.9 ± 0.3 |
| Bx GSE [nT] |
2.5 ± 0.2 |
1.9 ± 1.0 |
| By GSE [nT] |
-2.6 ± 0.6 |
-5.9 ± 0.4 |
| Bz GSE [nT] |
1.7 ± 0.6 |
1.3 ± 0.6 |
Plasma Beta
|
0.173 ± 0.178
|
0.156 ± 0.154
|
Sound Speed [km/s]
|
35.87 ± 1.46
|
41.38 ± 3.70
|
Alfven Speed [km/s]
|
66.89 ± 1.86
|
82.60 ± 5.07
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.824 ± 0.157 |
0.254 ± 0.235 |
-0.506 ± 0.458 |
-30.41 ± 16.59 |
162.90 ± 16.05 |
| VC |
-0.916 ± 0.075 |
-0.347 ± 0.146 |
-0.201 ± 0.199 |
-11.62 ± 15.72 |
200.77 ± 9.06 |
| MX1 |
-0.902 ± 0.119 |
0.230 ± 0.262 |
-0.364 ± 0.347 |
-21.37 ± 16.11 |
165.73 ± 16.54 |
| MX2 |
-0.941 ± 0.085 |
0.208 ± 0.258 |
-0.266 ± 0.259 |
-15.42 ± 13.96 |
167.53 ± 15.66 |
| MX3 |
-0.968 ± 0.063 |
0.190 ± 0.259 |
-0.166 ± 0.165 |
-9.58 ± 13.38 |
168.90 ± 15.33 |
| RH08 |
-0.984 ± 0.002 |
0.165 ± 0.009 |
-0.073 ± 0.072 |
-4.16 ± 0.96 |
170.47 ± 0.53 |
| RH09 |
-0.967 ± 0.017 |
0.251 ± 0.066 |
-0.039 ± 0.039 |
-2.24 ± 4.06 |
165.46 ± 3.91 |
| RH10 |
-0.967 ± 0.017 |
0.251 ± 0.066 |
-0.039 ± 0.039 |
-2.24 ± 4.06 |
165.46 ± 3.91 |
| Average |
-0.934 |
0.150 |
-0.207 |
-12.131 |
170.902 |
| Median |
-0.941 |
0.230 |
-0.166 |
-9.578 |
167.531 |
| Deviation |
0.052 |
0.204 |
0.166 |
9.972 |
12.291 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
26.7 ± 8.9 |
477.7 ± 28.0 |
1.67 ± 0.20 |
| VC |
64.4 ± 7.4 |
542.5 ± 25.9 |
1.67 ± 0.20 |
| MX1 |
30.6 ± 6.6 |
517.6 ± 28.9 |
1.67 ± 0.20 |
| MX2 |
34.2 ± 5.3 |
537.6 ± 29.4 |
1.67 ± 0.20 |
| MX3 |
38.0 ± 4.2 |
550.4 ± 29.9 |
1.67 ± 0.20 |
| RH08 |
42.2 ± 3.5 |
557.4 ± 30.2 |
1.67 ± 0.20 |
| RH09 |
39.6 ± 3.0 |
542.5 ± 30.4 |
1.67 ± 0.20 |
| RH10 |
39.6 ± 3.0 |
542.5 ± 30.4 |
1.67 ± 0.20 |
| Average |
39.4 |
533.5 |
1.67 |
| Median |
39.6 |
542.5 |
1.67 |
| Deviation |
11.3 |
25.3 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
107.5 ± 6.4 |
30.9 ± 1.1 |
59.8 ± 1.7 |
69.3 ± 1.7 |
3.48 ± 0.26 |
1.55 ± 0.09 |
| VC |
137.4 ± 5.2 |
13.9 ± 0.4 |
28.9 ± 0.8 |
74.6 ± 1.4 |
9.91 ± 0.57 |
1.84 ± 0.08 |
| MX1 |
114.7 ± 4.7 |
29.5 ± 1.0 |
57.6 ± 1.6 |
69.9 ± 1.6 |
3.89 ± 0.22 |
1.64 ± 0.07 |
| MX2 |
118.9 ± 3.6 |
28.1 ± 1.0 |
55.3 ± 1.5 |
70.5 ± 1.6 |
4.23 ± 0.21 |
1.69 ± 0.06 |
| MX3 |
121.3 ± 2.8 |
26.6 ± 0.9 |
52.7 ± 1.5 |
71.1 ± 1.6 |
4.57 ± 0.21 |
1.71 ± 0.05 |
| RH8 |
122.5 ± 2.5 |
24.8 ± 0.8 |
49.6 ± 1.4 |
71.8 ± 1.5 |
4.95 ± 0.21 |
1.71 ± 0.04 |
| RH9 |
115.0 ± 2.4 |
25.9 ± 0.9 |
51.5 ± 1.4 |
71.4 ± 1.5 |
4.45 ± 0.19 |
1.61 ± 0.04 |
| RH10 |
115.0 ± 2.4 |
25.9 ± 0.9 |
51.5 ± 1.4 |
71.4 ± 1.5 |
4.45 ± 0.19 |
1.61 ± 0.04 |
| Average |
119.0 |
25.7 |
50.9 |
71.3 |
5.0 |
1.7 |
| Median |
118.9 |
26.6 |
52.7 |
71.4 |
4.4 |
1.7 |
| Deviation |
8.8 |
5.2 |
9.5 |
1.6 |
2.0 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
64.3 ± 13.7 |
35.8 ± 2.9 |
73.8 ± 4.5 |
85.2 ± 4.4 |
1.84 ± 0.54 |
0.75 ± 0.14 |
| VC |
82.1 ± 14.1 |
16.2 ± 1.1 |
35.7 ± 2.2 |
91.1 ± 3.6 |
5.15 ± 1.24 |
0.90 ± 0.14 |
| MX1 |
68.7 ± 14.4 |
34.2 ± 2.7 |
71.1 ± 4.4 |
85.9 ± 4.3 |
2.05 ± 0.59 |
0.80 ± 0.15 |
| MX2 |
71.6 ± 14.7 |
32.6 ± 2.5 |
68.3 ± 4.2 |
86.5 ± 4.2 |
2.24 ± 0.63 |
0.83 ± 0.15 |
| MX3 |
73.6 ± 14.8 |
30.8 ± 2.3 |
65.1 ± 4.0 |
87.2 ± 4.1 |
2.43 ± 0.68 |
0.84 ± 0.15 |
| RH8 |
74.6 ± 14.9 |
28.7 ± 2.1 |
61.2 ± 3.8 |
87.9 ± 4.0 |
2.64 ± 0.72 |
0.85 ± 0.15 |
| RH9 |
69.8 ± 14.6 |
30.1 ± 2.2 |
63.6 ± 3.9 |
87.5 ± 4.0 |
2.37 ± 0.67 |
0.80 ± 0.15 |
| RH10 |
69.8 ± 14.6 |
30.1 ± 2.2 |
63.6 ± 3.9 |
87.5 ± 4.0 |
2.37 ± 0.67 |
0.80 ± 0.15 |
| Average |
71.8 |
29.8 |
62.8 |
87.3 |
2.6 |
0.8 |
| Median |
71.6 |
30.8 |
65.1 |
87.5 |
2.4 |
0.8 |
| Deviation |
5.2 |
6.0 |
11.7 |
1.8 |
1.0 |
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)
| 
