Database: Wind Shock Analysis
Event ID: 19970401250
Observation time: 02/09/1997 40.53502 1250 [UT]
|
|
General
Information (About, Top)
| Year |
1997 |
| Fractional day of year |
40.535017 |
| Arrival time of shock [seconds of day] |
46225.5 ± 7.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
198.382 |
| Y GSE location of spacecraft [Re] |
2.653 |
| Z GSE location of spacecraft [Re] |
-17.320 |
| Upstream plasma points selected for analysis |
0011 |
| Upstream field points selected for analysis |
0280 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0247 |
| Minimum chisq/dof for RH8,RH9,RH10 |
1.79, 2.50, 2.55 |
Event added to database
|
Mon Feb 14 11:03:57 2005
|
Event last processed
|
Mon Mar 30 16:38:41 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
31.683 ± 2.070
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-521.2 ± 2.8 |
-588.8 ± 11.1 |
| Vy GSE [km/s] |
26.1 ± 4.0 |
43.9 ± 11.8 |
| Vz GSE [km/s] |
-20.0 ± 7.0 |
-24.6 ± 27.6 |
| Wi [km/s] |
45.6 ± 1.6 |
59.2 ± 2.0 |
| We [km/s] |
1443.3 ± 50.1 |
1872.0 ± 62.4 |
| Ni [n/cc] |
3.9 ± 0.2 |
8.9 ± 0.5 |
| Bx GSE [nT] |
-3.0 ± 0.3 |
-1.3 ± 3.8 |
| By GSE [nT] |
-1.1 ± 0.4 |
2.1 ± 2.1 |
| Bz GSE [nT] |
1.1 ± 0.9 |
0.9 ± 6.4 |
Plasma Beta
|
1.370 ± 1.300
|
1.153 ± 1.190
|
Sound Speed [km/s]
|
58.92 ± 2.05
|
76.43 ± 2.55
|
Alfven Speed [km/s]
|
39.15 ± 1.66
|
55.61 ± 3.60
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.950 ± 0.116 |
-0.211 ± 0.379 |
-0.228 ± 0.224 |
-13.20 ± 20.46 |
192.54 ± 22.81 |
| VC |
-0.962 ± 0.055 |
0.256 ± 0.164 |
-0.098 ± 0.098 |
-5.62 ± 20.46 |
165.12 ± 9.75 |
| MX1 |
-0.870 ± 0.292 |
0.481 ± 0.526 |
-0.108 ± 0.107 |
-6.18 ± 20.20 |
151.08 ± 34.60 |
| MX2 |
-0.862 ± 0.086 |
0.405 ± 0.153 |
-0.303 ± 0.294 |
-17.66 ± 10.09 |
154.82 ± 10.07 |
| MX3 |
-0.855 ± 0.096 |
0.439 ± 0.170 |
-0.278 ± 0.270 |
-16.12 ± 9.83 |
152.82 ± 11.28 |
| RH08 |
-0.970 ± 0.007 |
0.128 ± 0.025 |
-0.207 ± 0.204 |
-11.93 ± 1.74 |
172.48 ± 1.47 |
| RH09 |
-0.943 ± 0.023 |
0.041 ± 0.071 |
-0.330 ± 0.317 |
-19.25 ± 3.98 |
177.49 ± 4.30 |
| RH10 |
-0.943 ± 0.023 |
0.041 ± 0.071 |
-0.330 ± 0.317 |
-19.25 ± 4.00 |
177.49 ± 4.29 |
| Average |
-0.919 |
0.197 |
-0.235 |
-13.649 |
167.981 |
| Median |
-0.943 |
0.256 |
-0.228 |
-13.195 |
172.479 |
| Deviation |
0.048 |
0.241 |
0.093 |
5.455 |
14.646 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
34.2 ± 12.1 |
603.6 ± 10.7 |
2.28 ± 0.14 |
| VC |
44.0 ± 9.0 |
635.3 ± 16.6 |
2.28 ± 0.14 |
| MX1 |
55.7 ± 8.9 |
589.8 ± 17.1 |
2.28 ± 0.14 |
| MX2 |
58.5 ± 10.4 |
590.9 ± 13.5 |
2.28 ± 0.14 |
| MX3 |
59.2 ± 10.1 |
587.2 ± 14.0 |
2.28 ± 0.14 |
| RH08 |
42.7 ± 10.2 |
635.9 ± 12.5 |
2.28 ± 0.14 |
| RH09 |
45.1 ± 12.0 |
617.6 ± 9.0 |
2.28 ± 0.14 |
| RH10 |
45.1 ± 12.0 |
617.6 ± 9.0 |
2.28 ± 0.14 |
| Average |
48.1 |
609.7 |
2.28 |
| Median |
45.1 |
617.6 |
2.28 |
| Deviation |
8.8 |
19.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
109.2 ± 3.9 |
29.7 ± 0.9 |
32.4 ± 1.4 |
64.2 ± 1.7 |
3.68 ± 0.08 |
1.70 ± 0.08 |
| VC |
125.4 ± 3.1 |
25.0 ± 0.7 |
28.1 ± 1.2 |
66.2 ± 1.6 |
5.01 ± 0.06 |
1.90 ± 0.05 |
| MX1 |
121.5 ± 3.2 |
19.1 ± 0.5 |
22.1 ± 0.9 |
68.1 ± 1.6 |
6.37 ± 0.09 |
1.78 ± 0.04 |
| MX2 |
124.8 ± 4.0 |
17.6 ± 0.5 |
20.5 ± 0.9 |
68.6 ± 1.6 |
7.10 ± 0.12 |
1.82 ± 0.06 |
| MX3 |
124.7 ± 3.9 |
17.2 ± 0.5 |
20.1 ± 0.9 |
68.6 ± 1.6 |
7.24 ± 0.11 |
1.82 ± 0.05 |
| RH8 |
122.9 ± 3.5 |
25.7 ± 0.8 |
28.8 ± 1.2 |
65.9 ± 1.6 |
4.78 ± 0.07 |
1.86 ± 0.06 |
| RH9 |
118.3 ± 4.2 |
24.5 ± 0.7 |
27.6 ± 1.2 |
66.4 ± 1.6 |
4.83 ± 0.09 |
1.78 ± 0.07 |
| RH10 |
118.3 ± 4.2 |
24.5 ± 0.7 |
27.6 ± 1.2 |
66.4 ± 1.6 |
4.83 ± 0.09 |
1.78 ± 0.07 |
| Average |
120.7 |
22.9 |
25.9 |
66.8 |
5.5 |
1.8 |
| Median |
122.9 |
24.5 |
27.6 |
66.4 |
5.0 |
1.8 |
| Deviation |
5.4 |
4.5 |
4.5 |
1.5 |
1.3 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
47.7 ± 6.3 |
41.2 ± 1.8 |
46.0 ± 3.0 |
85.1 ± 1.4 |
1.16 ± 0.15 |
0.56 ± 0.07 |
| VC |
55.4 ± 8.4 |
34.7 ± 1.4 |
40.0 ± 2.6 |
88.0 ± 1.3 |
1.60 ± 0.27 |
0.63 ± 0.09 |
| MX1 |
53.7 ± 8.4 |
26.3 ± 1.0 |
31.4 ± 2.0 |
90.8 ± 1.4 |
2.05 ± 0.37 |
0.59 ± 0.09 |
| MX2 |
58.0 ± 6.5 |
24.3 ± 0.9 |
29.1 ± 1.9 |
91.4 ± 1.4 |
2.40 ± 0.35 |
0.63 ± 0.07 |
| MX3 |
57.9 ± 6.7 |
23.8 ± 0.9 |
28.5 ± 1.8 |
91.6 ± 1.4 |
2.45 ± 0.37 |
0.63 ± 0.08 |
| RH8 |
54.1 ± 6.2 |
35.6 ± 1.4 |
40.9 ± 2.6 |
87.6 ± 1.3 |
1.52 ± 0.20 |
0.62 ± 0.07 |
| RH9 |
52.3 ± 4.6 |
33.9 ± 1.3 |
39.3 ± 2.5 |
88.3 ± 1.3 |
1.55 ± 0.17 |
0.59 ± 0.05 |
| RH10 |
52.3 ± 4.6 |
33.9 ± 1.3 |
39.3 ± 2.5 |
88.3 ± 1.3 |
1.55 ± 0.17 |
0.59 ± 0.05 |
| Average |
53.9 |
31.7 |
36.8 |
88.9 |
1.8 |
0.6 |
| Median |
54.1 |
33.9 |
39.3 |
88.3 |
1.6 |
0.6 |
| Deviation |
3.3 |
6.2 |
6.3 |
2.2 |
0.5 |
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)
| 
