Database: Wind Shock Analysis
Event ID: 19970742230
Observation time: 03/15/1997 74.93786 2230 [UT]
|
|
General
Information (About, Top)
| Year |
1997 |
| Fractional day of year |
74.937865 |
| Arrival time of shock [seconds of day] |
81031.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
227.190 |
| Y GSE location of spacecraft [Re] |
20.610 |
| Z GSE location of spacecraft [Re] |
3.385 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0231 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0200 |
| Minimum chisq/dof for RH8,RH9,RH10 |
6.72, 8.92, 9.12 |
Event added to database
|
Mon Feb 14 11:04:09 2005
|
Event last processed
|
Mon Mar 30 16:44:45 2009
|
Method selected
|
MX3
|
Propagation delay to Earth [minutes]
|
58.339 ± 4.156
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-340.4 ± 0.9 |
-353.7 ± 1.1 |
| Vy GSE [km/s] |
-9.8 ± 1.2 |
-21.0 ± 1.4 |
| Vz GSE [km/s] |
15.3 ± 1.7 |
27.8 ± 2.1 |
| Wi [km/s] |
29.7 ± 0.6 |
32.5 ± 0.6 |
| We [km/s] |
940.0 ± 20.2 |
1027.0 ± 20.5 |
| Ni [n/cc] |
7.0 ± 0.1 |
10.1 ± 0.2 |
| Bx GSE [nT] |
3.6 ± 0.1 |
4.3 ± 0.3 |
| By GSE [nT] |
-3.2 ± 0.3 |
-4.7 ± 0.2 |
| Bz GSE [nT] |
-1.4 ± 0.2 |
-0.0 ± 0.2 |
Plasma Beta
|
0.510 ± 0.509
|
0.549 ± 0.574
|
Sound Speed [km/s]
|
38.37 ± 0.83
|
41.93 ± 0.84
|
Alfven Speed [km/s]
|
41.73 ± 1.18
|
44.00 ± 2.09
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.652 ± 0.100 |
0.342 ± 0.122 |
0.676 ± 0.547 |
42.56 ± 7.63 |
152.33 ± 10.11 |
| VC |
-0.622 ± 0.071 |
-0.527 ± 0.077 |
0.579 ± 0.503 |
35.38 ± 5.15 |
220.27 ± 6.36 |
| MX1 |
-0.851 ± 0.033 |
0.096 ± 0.181 |
0.516 ± 0.465 |
31.08 ± 2.86 |
173.59 ± 12.20 |
| MX2 |
-0.893 ± 0.024 |
0.013 ± 0.170 |
0.451 ± 0.417 |
26.79 ± 3.01 |
179.19 ± 10.94 |
| MX3 |
-0.944 ± 0.037 |
-0.178 ± 0.141 |
0.278 ± 0.270 |
16.12 ± 5.37 |
190.70 ± 8.57 |
| RH08 |
-0.983 ± 0.002 |
-0.147 ± 0.009 |
0.106 ± 0.106 |
6.09 ± 0.84 |
188.52 ± 0.54 |
| RH09 |
-0.983 ± 0.012 |
-0.147 ± 0.066 |
0.106 ± 0.106 |
6.09 ± 4.00 |
188.52 ± 3.87 |
| RH10 |
-0.983 ± 0.012 |
-0.147 ± 0.067 |
0.106 ± 0.106 |
6.09 ± 4.01 |
188.52 ± 3.92 |
| Average |
-0.864 |
-0.087 |
0.352 |
21.276 |
185.207 |
| Median |
-0.893 |
-0.147 |
0.451 |
26.787 |
188.524 |
| Deviation |
0.148 |
0.251 |
0.233 |
14.621 |
19.065 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
28.8 ± 3.5 |
271.2 ± 9.3 |
1.45 ± 0.04 |
| VC |
74.0 ± 3.5 |
295.5 ± 8.3 |
1.45 ± 0.04 |
| MX1 |
35.1 ± 3.5 |
349.6 ± 8.7 |
1.45 ± 0.04 |
| MX2 |
39.0 ± 3.4 |
366.3 ± 8.4 |
1.45 ± 0.04 |
| MX3 |
49.9 ± 3.0 |
386.1 ± 7.3 |
1.45 ± 0.04 |
| RH08 |
49.9 ± 2.6 |
389.7 ± 6.3 |
1.45 ± 0.04 |
| RH09 |
49.9 ± 2.6 |
389.7 ± 6.3 |
1.45 ± 0.04 |
| RH10 |
49.9 ± 2.6 |
389.7 ± 6.3 |
1.45 ± 0.04 |
| Average |
47.0 |
354.7 |
1.45 |
| Median |
49.9 |
386.1 |
1.45 |
| Deviation |
13.6 |
46.8 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
42.1 ± 1.8 |
28.6 ± 0.2 |
36.6 ± 1.0 |
48.9 ± 0.5 |
1.47 ± 0.06 |
0.86 ± 0.04 |
| VC |
69.7 ± 1.5 |
7.9 ± 0.1 |
11.5 ± 0.3 |
56.2 ± 0.5 |
8.84 ± 0.21 |
1.24 ± 0.03 |
| MX1 |
52.9 ± 1.6 |
26.0 ± 0.2 |
34.1 ± 1.0 |
50.4 ± 0.5 |
2.04 ± 0.06 |
1.05 ± 0.04 |
| MX2 |
55.7 ± 1.5 |
24.3 ± 0.2 |
32.4 ± 0.9 |
51.2 ± 0.5 |
2.29 ± 0.06 |
1.09 ± 0.03 |
| MX3 |
58.7 ± 1.2 |
19.4 ± 0.1 |
26.9 ± 0.8 |
53.3 ± 0.5 |
3.03 ± 0.07 |
1.10 ± 0.03 |
| RH8 |
51.9 ± 1.0 |
19.4 ± 0.1 |
26.9 ± 0.8 |
53.3 ± 0.5 |
2.68 ± 0.05 |
0.97 ± 0.02 |
| RH9 |
51.9 ± 1.0 |
19.4 ± 0.1 |
26.9 ± 0.8 |
53.3 ± 0.5 |
2.68 ± 0.05 |
0.97 ± 0.02 |
| RH10 |
51.9 ± 1.0 |
19.4 ± 0.1 |
26.9 ± 0.8 |
53.3 ± 0.5 |
2.68 ± 0.05 |
0.97 ± 0.02 |
| Average |
54.3 |
20.5 |
27.8 |
52.5 |
3.2 |
1.0 |
| Median |
52.9 |
19.4 |
26.9 |
53.3 |
2.7 |
1.1 |
| Deviation |
7.8 |
6.3 |
7.6 |
2.2 |
2.3 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
28.8 ± 2.3 |
30.8 ± 0.6 |
38.5 ± 1.8 |
52.4 ± 1.3 |
0.94 ± 0.06 |
0.55 ± 0.03 |
| VC |
48.3 ± 1.5 |
8.5 ± 0.2 |
12.2 ± 0.6 |
60.2 ± 1.4 |
5.70 ± 0.18 |
0.80 ± 0.03 |
| MX1 |
36.3 ± 2.0 |
27.9 ± 0.5 |
36.0 ± 1.7 |
54.0 ± 1.3 |
1.30 ± 0.05 |
0.67 ± 0.03 |
| MX2 |
38.4 ± 1.8 |
26.1 ± 0.5 |
34.2 ± 1.6 |
54.9 ± 1.3 |
1.47 ± 0.05 |
0.70 ± 0.02 |
| MX3 |
40.7 ± 1.4 |
20.8 ± 0.4 |
28.4 ± 1.3 |
57.1 ± 1.3 |
1.96 ± 0.05 |
0.71 ± 0.02 |
| RH8 |
35.9 ± 1.1 |
20.8 ± 0.4 |
28.4 ± 1.3 |
57.1 ± 1.3 |
1.72 ± 0.04 |
0.63 ± 0.01 |
| RH9 |
35.9 ± 1.1 |
20.8 ± 0.4 |
28.4 ± 1.3 |
57.1 ± 1.3 |
1.72 ± 0.04 |
0.63 ± 0.01 |
| RH10 |
35.9 ± 1.1 |
20.8 ± 0.4 |
28.4 ± 1.3 |
57.1 ± 1.3 |
1.72 ± 0.04 |
0.63 ± 0.01 |
| Average |
37.5 |
22.1 |
29.3 |
56.3 |
2.1 |
0.7 |
| Median |
36.3 |
20.8 |
28.4 |
57.1 |
1.7 |
0.7 |
| Deviation |
5.5 |
6.7 |
8.0 |
2.4 |
1.5 |
0.1 |
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)
| 
