Database: Wind Shock Analysis
Event ID: 20020480332
Observation time: 02/17/2002 48.14790 0332 [UT]
|
|
General
Information (About, Top)
| Year |
2002 |
| Fractional day of year |
48.147899 |
| Arrival time of shock [seconds of day] |
12778.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
-8.360 |
| Y GSE location of spacecraft [Re] |
-290.689 |
| Z GSE location of spacecraft [Re] |
10.663 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0229 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0270 |
| Minimum chisq/dof for RH8,RH9,RH10 |
13.62, 17.33, 18.26 |
Event added to database
|
Mon Feb 14 11:17:57 2005
|
Event last processed
|
Mon Mar 30 22:39:24 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
-31.741 ± 5.944
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-367.3 ± 2.6 |
-401.6 ± 0.7 |
| Vy GSE [km/s] |
-10.1 ± 0.8 |
-14.4 ± 3.6 |
| Vz GSE [km/s] |
2.9 ± 1.1 |
32.1 ± 3.5 |
| Wi [km/s] |
18.4 ± 0.8 |
28.7 ± 3.4 |
| We [km/s] |
583.4 ± 24.0 |
907.2 ± 106.0 |
| Ni [n/cc] |
17.8 ± 1.1 |
46.2 ± 3.2 |
| Bx GSE [nT] |
0.3 ± 0.6 |
4.6 ± 1.2 |
| By GSE [nT] |
-2.1 ± 0.1 |
-4.6 ± 1.0 |
| Bz GSE [nT] |
3.2 ± 0.1 |
6.4 ± 1.3 |
Plasma Beta
|
0.829 ± 0.811
|
0.939 ± 0.902
|
Sound Speed [km/s]
|
23.82 ± 0.98
|
37.04 ± 4.33
|
Alfven Speed [km/s]
|
20.37 ± 0.84
|
29.97 ± 1.95
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.664 ± 0.182 |
-0.362 ± 0.233 |
0.654 ± 0.539 |
40.85 ± 13.63 |
208.63 ± 19.03 |
| VC |
-0.761 ± 0.046 |
-0.095 ± 0.076 |
0.642 ± 0.534 |
39.93 ± 4.09 |
187.13 ± 5.74 |
| MX1 |
-0.663 ± 0.106 |
-0.209 ± 0.184 |
0.719 ± 0.558 |
45.98 ± 7.42 |
197.53 ± 15.76 |
| MX2 |
-0.664 ± 0.108 |
-0.205 ± 0.185 |
0.719 ± 0.558 |
45.99 ± 7.66 |
197.16 ± 15.79 |
| MX3 |
-0.665 ± 0.110 |
-0.203 ± 0.186 |
0.719 ± 0.558 |
45.94 ± 7.85 |
197.00 ± 15.87 |
| RH08 |
-0.721 ± 0.015 |
-0.330 ± 0.021 |
0.609 ± 0.519 |
37.51 ± 1.26 |
204.57 ± 1.57 |
| RH09 |
-0.689 ± 0.050 |
-0.591 ± 0.056 |
0.419 ± 0.393 |
24.77 ± 3.98 |
220.61 ± 4.37 |
| RH10 |
-0.700 ± 0.050 |
-0.579 ± 0.057 |
0.419 ± 0.393 |
24.77 ± 3.98 |
219.61 ± 4.37 |
| Average |
-0.691 |
-0.322 |
0.612 |
38.219 |
204.031 |
| Median |
-0.665 |
-0.209 |
0.654 |
40.852 |
204.568 |
| Deviation |
0.036 |
0.182 |
0.126 |
8.883 |
11.732 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
46.5 ± 8.4 |
319.7 ± 5.8 |
2.63 ± 0.18 |
| VC |
58.4 ± 8.0 |
356.7 ± 6.2 |
2.63 ± 0.18 |
| MX1 |
48.8 ± 8.0 |
321.0 ± 6.2 |
2.63 ± 0.18 |
| MX2 |
49.0 ± 8.0 |
321.4 ± 6.2 |
2.63 ± 0.18 |
| MX3 |
49.1 ± 8.0 |
321.8 ± 6.2 |
2.63 ± 0.18 |
| RH08 |
51.1 ± 8.4 |
341.4 ± 5.8 |
2.63 ± 0.18 |
| RH09 |
52.1 ± 7.9 |
324.0 ± 5.1 |
2.63 ± 0.18 |
| RH10 |
52.6 ± 7.9 |
328.1 ± 5.1 |
2.63 ± 0.18 |
| Average |
50.9 |
329.3 |
2.63 |
| Median |
51.1 |
324.0 |
2.63 |
| Deviation |
3.6 |
13.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
70.3 ± 1.9 |
11.4 ± 0.2 |
14.0 ± 0.6 |
29.2 ± 0.4 |
6.16 ± 0.22 |
2.41 ± 0.08 |
| VC |
74.3 ± 2.2 |
8.4 ± 0.1 |
10.7 ± 0.4 |
30.2 ± 0.4 |
8.85 ± 0.34 |
2.46 ± 0.09 |
| MX1 |
73.4 ± 1.9 |
10.8 ± 0.2 |
13.4 ± 0.6 |
29.4 ± 0.4 |
6.77 ± 0.24 |
2.49 ± 0.09 |
| MX2 |
73.4 ± 1.9 |
10.8 ± 0.2 |
13.4 ± 0.5 |
29.4 ± 0.4 |
6.80 ± 0.24 |
2.49 ± 0.09 |
| MX3 |
73.4 ± 1.9 |
10.8 ± 0.2 |
13.3 ± 0.5 |
29.5 ± 0.4 |
6.82 ± 0.24 |
2.49 ± 0.09 |
| RH8 |
71.3 ± 2.0 |
10.3 ± 0.1 |
12.8 ± 0.5 |
29.6 ± 0.4 |
6.94 ± 0.26 |
2.41 ± 0.09 |
| RH9 |
63.6 ± 1.8 |
10.0 ± 0.1 |
12.5 ± 0.5 |
29.7 ± 0.4 |
6.35 ± 0.25 |
2.14 ± 0.08 |
| RH10 |
64.0 ± 1.8 |
9.9 ± 0.1 |
12.4 ± 0.5 |
29.8 ± 0.4 |
6.48 ± 0.25 |
2.15 ± 0.08 |
| Average |
70.5 |
10.3 |
12.8 |
29.6 |
6.9 |
2.4 |
| Median |
73.4 |
10.8 |
13.3 |
29.6 |
6.8 |
2.5 |
| Deviation |
4.3 |
0.9 |
1.0 |
0.3 |
0.8 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
26.9 ± 1.7 |
17.1 ± 0.9 |
20.6 ± 1.3 |
44.6 ± 3.4 |
1.58 ± 0.16 |
0.61 ± 0.08 |
| VC |
29.1 ± 2.0 |
12.6 ± 0.7 |
15.7 ± 1.0 |
46.1 ± 3.4 |
2.32 ± 0.25 |
0.64 ± 0.08 |
| MX1 |
28.8 ± 2.1 |
16.2 ± 0.9 |
19.7 ± 1.3 |
44.9 ± 3.4 |
1.78 ± 0.19 |
0.65 ± 0.09 |
| MX2 |
28.8 ± 2.1 |
16.2 ± 0.9 |
19.7 ± 1.3 |
44.9 ± 3.4 |
1.79 ± 0.19 |
0.65 ± 0.09 |
| MX3 |
28.8 ± 2.1 |
16.1 ± 0.9 |
19.6 ± 1.3 |
44.9 ± 3.4 |
1.79 ± 0.19 |
0.65 ± 0.09 |
| RH8 |
27.4 ± 1.6 |
15.4 ± 0.8 |
18.8 ± 1.2 |
45.2 ± 3.4 |
1.79 ± 0.17 |
0.61 ± 0.08 |
| RH9 |
25.2 ± 1.6 |
15.0 ± 0.8 |
18.4 ± 1.2 |
45.3 ± 3.4 |
1.68 ± 0.15 |
0.56 ± 0.06 |
| RH10 |
25.3 ± 1.6 |
14.8 ± 0.8 |
18.2 ± 1.2 |
45.4 ± 3.4 |
1.72 ± 0.15 |
0.56 ± 0.06 |
| Average |
27.5 |
15.4 |
18.9 |
45.2 |
1.8 |
0.6 |
| Median |
28.8 |
16.1 |
19.6 |
45.2 |
1.8 |
0.6 |
| Deviation |
1.6 |
1.4 |
1.5 |
0.4 |
0.2 |
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)
| 
