Database: Wind Shock Analysis
Event ID: 20120920710
Observation time: 04/01/2012 92.29920 0710 [UT]
|
|
General
Information (About, Top)
| Year |
2012 |
| Fractional day of year |
92.299203 |
| Arrival time of shock [seconds of day] |
25851.1 ± 60.0 |
| Shock type |
FR |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
235.854 |
| Y GSE location of spacecraft [Re] |
111.299 |
| Z GSE location of spacecraft [Re] |
11.069 |
| Upstream plasma points selected for analysis |
0003 |
| Upstream field points selected for analysis |
0101 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0128 |
| Minimum chisq/dof for RH8,RH9,RH10 |
21.76, 30.28, 50.02 |
Event added to database
|
Thu Sep 19 15:47:17 2013
|
Event last processed
|
Mon Oct 7 14:10:32 2013
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
91.132 ± 25.138
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-357.6 ± 0.6 |
-328.3 ± 1.1 |
| Vy GSE [km/s] |
16.6 ± 1.1 |
-3.5 ± 2.6 |
| Vz GSE [km/s] |
4.3 ± 1.2 |
-13.9 ± 1.9 |
| Wi [km/s] |
29.0 ± 1.0 |
26.2 ± 0.4 |
| We [km/s] |
917.4 ± 31.9 |
827.5 ± 13.2 |
| Ni [n/cc] |
13.5 ± 0.2 |
6.3 ± 0.0 |
| Bx GSE [nT] |
0.1 ± 0.2 |
4.9 ± 0.1 |
| By GSE [nT] |
3.4 ± 0.3 |
-0.7 ± 0.2 |
| Bz GSE [nT] |
-1.7 ± 0.3 |
-3.7 ± 0.1 |
Plasma Beta
|
1.719 ± 1.585
|
0.234 ± 0.239
|
Sound Speed [km/s]
|
37.45 ± 1.30
|
33.78 ± 0.54
|
Alfven Speed [km/s]
|
22.55 ± 2.54
|
54.14 ± 0.38
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.340 ± 0.040 |
-0.705 ± 0.029 |
0.622 ± 0.526 |
38.48 ± 2.32 |
244.22 ± 3.11 |
| VC |
-0.734 ± 0.038 |
0.502 ± 0.049 |
0.457 ± 0.422 |
27.17 ± 3.12 |
145.63 ± 3.64 |
| MX1 |
-0.324 ± 0.040 |
-0.695 ± 0.031 |
0.642 ± 0.534 |
39.90 ± 2.55 |
245.01 ± 3.13 |
| MX2 |
-0.424 ± 0.041 |
-0.747 ± 0.040 |
0.511 ± 0.461 |
30.75 ± 4.38 |
240.44 ± 2.78 |
| MX3 |
-0.729 ± 0.754 |
-0.534 ± 0.960 |
0.428 ± 0.400 |
25.35 ± 53.74 |
216.21 ± 73.10 |
| RH08 |
-0.576 ± 0.048 |
-0.288 ± 0.038 |
-0.765 ± 0.561 |
-49.94 ± 3.80 |
206.57 ± 3.03 |
| RH09 |
-0.582 ± 0.052 |
-0.304 ± 0.044 |
-0.754 ± 0.561 |
-48.95 ± 4.17 |
207.58 ± 3.55 |
| RH10 |
-0.582 ± 0.057 |
-0.304 ± 0.067 |
-0.754 ± 0.561 |
-48.95 ± 3.99 |
207.58 ± 6.16 |
| Average |
-0.536 |
-0.384 |
0.048 |
1.727 |
214.155 |
| Median |
-0.576 |
-0.304 |
0.457 |
27.174 |
216.215 |
| Deviation |
0.160 |
0.407 |
0.672 |
42.533 |
32.493 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
22.8 ± 3.3 |
119.2 ± 0.8 |
0.47 ± 0.01 |
| VC |
77.7 ± 3.3 |
308.4 ± 0.6 |
0.47 ± 0.01 |
| MX1 |
22.8 ± 3.3 |
113.6 ± 0.8 |
0.47 ± 0.01 |
| MX2 |
24.2 ± 3.1 |
147.6 ± 0.8 |
0.47 ± 0.01 |
| MX3 |
46.1 ± 3.0 |
270.2 ± 0.6 |
0.47 ± 0.01 |
| RH08 |
85.6 ± 1.4 |
195.4 ± 0.7 |
0.47 ± 0.01 |
| RH09 |
86.8 ± 1.4 |
197.5 ± 0.7 |
0.47 ± 0.01 |
| RH10 |
86.8 ± 1.4 |
197.5 ± 2.2 |
0.47 ± 0.01 |
| Average |
56.6 |
193.7 |
0.47 |
| Median |
77.7 |
197.5 |
0.47 |
| Deviation |
30.6 |
68.8 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
6.5 ± 1.4 |
20.0 ± 2.0 |
20.8 ± 2.3 |
38.9 ± 0.8 |
0.32 ± 0.05 |
0.17 ± 0.04 |
| VC |
35.5 ± 0.3 |
4.1 ± 0.3 |
4.8 ± 0.5 |
43.6 ± 0.5 |
8.68 ± 0.77 |
0.82 ± 0.01 |
| MX1 |
6.5 ± 1.5 |
20.0 ± 2.0 |
20.8 ± 2.3 |
38.9 ± 0.8 |
0.32 ± 0.05 |
0.17 ± 0.04 |
| MX2 |
6.2 ± 1.3 |
19.7 ± 1.9 |
20.6 ± 2.3 |
39.1 ± 0.8 |
0.31 ± 0.05 |
0.16 ± 0.03 |
| MX3 |
16.5 ± 0.9 |
14.1 ± 1.2 |
15.6 ± 1.8 |
41.4 ± 0.5 |
1.17 ± 0.07 |
0.40 ± 0.02 |
| RH8 |
-2.4 ± 0.9 |
1.5 ± 0.1 |
1.7 ± 0.2 |
43.8 ± 0.5 |
-1.61 ± 0.52 |
-0.05 ± 0.02 |
| RH9 |
-2.4 ± 0.9 |
1.1 ± 0.1 |
1.3 ± 0.1 |
43.8 ± 0.5 |
-2.16 ± 0.67 |
-0.05 ± 0.02 |
| RH10 |
-2.4 ± 0.9 |
1.1 ± 0.1 |
1.3 ± 0.1 |
43.8 ± 0.5 |
-2.16 ± 0.67 |
-0.05 ± 0.02 |
| Average |
8.0 |
10.2 |
10.9 |
41.6 |
0.6 |
0.2 |
| Median |
6.5 |
14.1 |
15.6 |
43.6 |
0.3 |
0.2 |
| Deviation |
12.9 |
9.1 |
9.4 |
2.4 |
3.5 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
13.7 ± 2.1 |
29.9 ± 0.4 |
49.9 ± 0.3 |
56.4 ± 0.3 |
0.46 ± 0.07 |
0.24 ± 0.04 |
| VC |
75.4 ± 1.5 |
6.1 ± 0.1 |
11.5 ± 0.1 |
63.5 ± 0.1 |
12.31 ± 0.15 |
1.19 ± 0.02 |
| MX1 |
13.8 ± 2.0 |
29.9 ± 0.4 |
49.9 ± 0.3 |
56.4 ± 0.3 |
0.46 ± 0.07 |
0.24 ± 0.04 |
| MX2 |
12.9 ± 2.1 |
29.5 ± 0.4 |
49.4 ± 0.3 |
56.6 ± 0.3 |
0.44 ± 0.07 |
0.23 ± 0.04 |
| MX3 |
35.0 ± 1.7 |
21.1 ± 0.2 |
37.6 ± 0.3 |
60.2 ± 0.1 |
1.66 ± 0.08 |
0.58 ± 0.03 |
| RH8 |
-5.3 ± 2.1 |
2.2 ± 0.0 |
4.1 ± 0.0 |
63.8 ± 0.1 |
-2.43 ± 0.97 |
-0.08 ± 0.03 |
| RH9 |
-5.2 ± 2.1 |
1.6 ± 0.0 |
3.1 ± 0.0 |
63.8 ± 0.1 |
-3.22 ± 1.32 |
-0.08 ± 0.03 |
| RH10 |
-5.2 ± 2.1 |
1.6 ± 0.0 |
3.1 ± 0.0 |
63.8 ± 0.1 |
-3.22 ± 1.32 |
-0.08 ± 0.03 |
| Average |
16.9 |
15.2 |
26.1 |
60.6 |
0.8 |
0.3 |
| Median |
13.7 |
21.1 |
37.6 |
63.5 |
0.5 |
0.2 |
| Deviation |
27.4 |
13.6 |
22.6 |
3.6 |
5.0 |
0.4 |
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)
| 
