Database: Wind Shock Analysis
Event ID: 20090411209
Observation time: 02/10/2009 41.50651 1209 [UT]
|
|
General
Information (About, Top)
| Year |
2009 |
| Fractional day of year |
41.506510 |
| Arrival time of shock [seconds of day] |
43762.5 ± 20.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
200.709 |
| Y GSE location of spacecraft [Re] |
-75.916 |
| Z GSE location of spacecraft [Re] |
-11.712 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0220 |
| Downstream plasma points selected for analysis |
0005
|
| Downstream field points selected for analysis |
0170 |
| Minimum chisq/dof for RH8,RH9,RH10 |
12.92, 31.26, 39.60 |
Event added to database
|
Wed Sep 25 09:47:15 2013
|
Event last processed
|
Wed Sep 25 10:36:20 2013
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
172.743 ± 11.700
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-287.4 ± 0.5 |
-296.8 ± 0.8 |
| Vy GSE [km/s] |
-3.1 ± 0.3 |
-5.2 ± 0.4 |
| Vz GSE [km/s] |
1.1 ± 0.7 |
15.2 ± 0.6 |
| Wi [km/s] |
14.0 ± 0.2 |
16.1 ± 0.2 |
| We [km/s] |
441.4 ± 4.8 |
507.7 ± 7.8 |
| Ni [n/cc] |
8.9 ± 0.2 |
13.3 ± 0.3 |
| Bx GSE [nT] |
-1.3 ± 0.0 |
-1.8 ± 0.1 |
| By GSE [nT] |
-1.0 ± 0.0 |
-1.3 ± 0.1 |
| Bz GSE [nT] |
-0.7 ± 0.1 |
-1.1 ± 0.1 |
Plasma Beta
|
1.199 ± 1.200
|
1.201 ± 1.185
|
Sound Speed [km/s]
|
18.02 ± 0.20
|
20.73 ± 0.32
|
Alfven Speed [km/s]
|
12.75 ± 0.21
|
14.66 ± 0.28
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.851 ± 0.239 |
-0.161 ± 0.772 |
0.499 ± 0.453 |
29.95 ± 22.18 |
190.70 ± 51.87 |
| VC |
-0.552 ± 0.021 |
-0.122 ± 0.032 |
0.825 ± 0.548 |
55.60 ± 1.43 |
192.50 ± 3.30 |
| MX1 |
-0.608 ± 0.116 |
-0.163 ± 0.064 |
0.777 ± 0.560 |
50.97 ± 8.81 |
194.96 ± 5.23 |
| MX2 |
-0.609 ± 0.117 |
-0.161 ± 0.059 |
0.777 ± 0.560 |
50.97 ± 8.86 |
194.78 ± 4.78 |
| MX3 |
-0.610 ± 0.118 |
-0.157 ± 0.056 |
0.776 ± 0.560 |
50.92 ± 8.95 |
194.46 ± 4.44 |
| RH08 |
-0.433 ± 0.008 |
0.875 ± 0.005 |
-0.218 ± 0.214 |
-12.58 ± 0.69 |
116.32 ± 0.55 |
| RH09 |
-0.187 ± 0.055 |
0.860 ± 0.030 |
-0.475 ± 0.435 |
-28.35 ± 3.43 |
102.28 ± 3.67 |
| RH10 |
-0.255 ± 0.067 |
0.872 ± 0.034 |
-0.419 ± 0.393 |
-24.77 ± 3.98 |
106.30 ± 4.37 |
| Average |
-0.513 |
0.230 |
0.318 |
21.588 |
161.539 |
| Median |
-0.552 |
-0.122 |
0.776 |
50.925 |
192.503 |
| Deviation |
0.215 |
0.529 |
0.583 |
37.080 |
44.276 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
58.5 ± 3.6 |
291.8 ± 0.6 |
1.51 ± 0.05 |
| VC |
81.1 ± 3.9 |
210.8 ± 0.6 |
1.51 ± 0.05 |
| MX1 |
76.2 ± 3.9 |
227.1 ± 0.6 |
1.51 ± 0.05 |
| MX2 |
76.3 ± 3.9 |
227.2 ± 0.6 |
1.51 ± 0.05 |
| MX3 |
76.3 ± 3.9 |
227.6 ± 0.6 |
1.51 ± 0.05 |
| RH08 |
85.2 ± 1.5 |
118.9 ± 0.3 |
1.51 ± 0.05 |
| RH09 |
81.0 ± 2.5 |
30.4 ± 0.2 |
1.51 ± 0.05 |
| RH10 |
82.2 ± 2.2 |
53.9 ± 1.4 |
1.51 ± 0.05 |
| Average |
77.1 |
173.5 |
1.51 |
| Median |
81.0 |
227.1 |
1.51 |
| Deviation |
8.2 |
94.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
46.1 ± 0.7 |
5.6 ± 0.1 |
6.7 ± 0.1 |
21.3 ± 0.2 |
8.19 ± 0.19 |
2.16 ± 0.04 |
| VC |
51.0 ± 0.8 |
1.6 ± 0.0 |
2.0 ± 0.0 |
22.0 ± 0.2 |
31.54 ± 0.72 |
2.32 ± 0.04 |
| MX1 |
50.9 ± 0.8 |
2.5 ± 0.0 |
3.0 ± 0.1 |
21.9 ± 0.2 |
20.43 ± 0.47 |
2.32 ± 0.04 |
| MX2 |
50.9 ± 0.8 |
2.5 ± 0.0 |
3.0 ± 0.1 |
21.9 ± 0.2 |
20.48 ± 0.47 |
2.32 ± 0.04 |
| MX3 |
50.9 ± 0.8 |
2.5 ± 0.0 |
3.0 ± 0.1 |
21.9 ± 0.2 |
20.53 ± 0.47 |
2.32 ± 0.04 |
| RH8 |
-2.5 ± 0.3 |
0.9 ± 0.0 |
1.1 ± 0.0 |
22.1 ± 0.2 |
-2.90 ± 0.35 |
-0.12 ± 0.01 |
| RH9 |
-20.2 ± 0.4 |
1.6 ± 0.0 |
2.0 ± 0.0 |
22.0 ± 0.2 |
-12.34 ± 0.23 |
-0.92 ± 0.01 |
| RH10 |
-16.1 ± 0.4 |
1.4 ± 0.0 |
1.7 ± 0.0 |
22.0 ± 0.2 |
-11.41 ± 0.22 |
-0.73 ± 0.01 |
| Average |
26.4 |
2.3 |
2.8 |
21.9 |
9.3 |
1.2 |
| Median |
50.9 |
2.5 |
3.0 |
22.0 |
20.4 |
2.3 |
| Deviation |
33.0 |
1.5 |
1.7 |
0.2 |
16.5 |
1.5 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
30.7 ± 0.8 |
6.5 ± 0.1 |
7.7 ± 0.1 |
24.6 ± 0.2 |
4.74 ± 0.14 |
1.25 ± 0.03 |
| VC |
33.9 ± 0.8 |
1.9 ± 0.0 |
2.3 ± 0.0 |
25.3 ± 0.2 |
18.24 ± 0.48 |
1.34 ± 0.03 |
| MX1 |
33.8 ± 0.8 |
2.9 ± 0.0 |
3.5 ± 0.1 |
25.2 ± 0.2 |
11.82 ± 0.31 |
1.34 ± 0.03 |
| MX2 |
33.8 ± 0.8 |
2.9 ± 0.0 |
3.5 ± 0.1 |
25.2 ± 0.2 |
11.85 ± 0.31 |
1.34 ± 0.03 |
| MX3 |
33.8 ± 0.8 |
2.8 ± 0.0 |
3.5 ± 0.1 |
25.2 ± 0.2 |
11.88 ± 0.31 |
1.34 ± 0.03 |
| RH8 |
-1.7 ± 0.6 |
1.0 ± 0.0 |
1.2 ± 0.0 |
25.4 ± 0.2 |
-1.74 ± 0.62 |
-0.07 ± 0.02 |
| RH9 |
-13.5 ± 0.5 |
1.9 ± 0.0 |
2.3 ± 0.0 |
25.3 ± 0.2 |
-7.17 ± 0.30 |
-0.53 ± 0.02 |
| RH10 |
-10.8 ± 0.5 |
1.6 ± 0.0 |
2.0 ± 0.0 |
25.3 ± 0.2 |
-6.66 ± 0.35 |
-0.43 ± 0.02 |
| Average |
17.5 |
2.7 |
3.2 |
25.2 |
5.4 |
0.7 |
| Median |
33.8 |
2.8 |
3.5 |
25.3 |
11.8 |
1.3 |
| Deviation |
22.0 |
1.7 |
2.0 |
0.3 |
9.6 |
0.9 |
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)
| 
