Database: Wind Shock Analysis
Event ID: 20120220533
Observation time: 01/22/2012 22.23127 0533 [UT]
|
|
General
Information (About, Top)
| Year |
2012 |
| Fractional day of year |
22.231267 |
| Arrival time of shock [seconds of day] |
19981.5 ± 30.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
197.234 |
| Y GSE location of spacecraft [Re] |
-47.730 |
| Z GSE location of spacecraft [Re] |
-14.581 |
| Upstream plasma points selected for analysis |
0004 |
| Upstream field points selected for analysis |
0130 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0124 |
| Minimum chisq/dof for RH8,RH9,RH10 |
28.77, 126.65, 152.25 |
Event added to database
|
Thu Sep 19 12:10:23 2013
|
Event last processed
|
Mon Oct 7 13:56:13 2013
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
111.546 ± 3.083
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-324.6 ± 1.1 |
-392.8 ± 2.0 |
| Vy GSE [km/s] |
1.9 ± 3.1 |
-19.4 ± 3.1 |
| Vz GSE [km/s] |
-7.3 ± 1.0 |
-21.0 ± 1.5 |
| Wi [km/s] |
23.6 ± 0.5 |
29.8 ± 2.4 |
| We [km/s] |
744.8 ± 15.6 |
942.8 ± 74.7 |
| Ni [n/cc] |
18.7 ± 0.3 |
40.0 ± 0.6 |
| Bx GSE [nT] |
-1.8 ± 0.4 |
-3.8 ± 0.6 |
| By GSE [nT] |
2.7 ± 0.6 |
0.9 ± 0.4 |
| Bz GSE [nT] |
10.6 ± 0.2 |
24.2 ± 0.3 |
Plasma Beta
|
0.177 ± 0.180
|
0.125 ± 0.133
|
Sound Speed [km/s]
|
30.41 ± 0.64
|
38.49 ± 3.05
|
Alfven Speed [km/s]
|
56.00 ± 0.79
|
84.48 ± 1.69
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.952 ± 0.434 |
-0.300 ± 1.380 |
-0.061 ± 0.061 |
-3.49 ± 7.04 |
197.48 ± 83.03 |
| VC |
-0.938 ± 0.016 |
-0.292 ± 0.049 |
-0.188 ± 0.186 |
-10.85 ± 1.49 |
197.31 ± 2.98 |
| MX1 |
-0.941 ± 0.015 |
-0.290 ± 0.041 |
-0.175 ± 0.173 |
-10.07 ± 2.93 |
197.10 ± 2.51 |
| MX2 |
-0.941 ± 0.017 |
-0.291 ± 0.047 |
-0.175 ± 0.173 |
-10.06 ± 2.89 |
197.21 ± 2.85 |
| MX3 |
-0.940 ± 0.018 |
-0.293 ± 0.051 |
-0.175 ± 0.173 |
-10.06 ± 2.87 |
197.30 ± 3.11 |
| RH08 |
-0.396 ± 0.021 |
0.918 ± 0.009 |
0.006 ± 0.006 |
0.32 ± 0.32 |
113.31 ± 1.29 |
| RH09 |
-0.981 ± 0.014 |
-0.165 ± 0.069 |
-0.106 ± 0.106 |
-6.09 ± 4.02 |
189.53 ± 4.03 |
| RH10 |
-0.986 ± 0.012 |
-0.130 ± 0.069 |
-0.106 ± 0.106 |
-6.09 ± 4.02 |
187.52 ± 4.03 |
| Average |
-0.884 |
-0.105 |
-0.122 |
-7.049 |
184.595 |
| Median |
-0.941 |
-0.290 |
-0.106 |
-6.093 |
197.214 |
| Deviation |
0.198 |
0.419 |
0.069 |
3.973 |
29.077 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
88.6 ± 2.8 |
444.8 ± 0.9 |
2.13 ± 0.02 |
| VC |
84.4 ± 2.8 |
441.8 ± 0.9 |
2.13 ± 0.02 |
| MX1 |
85.2 ± 2.8 |
442.8 ± 0.9 |
2.13 ± 0.02 |
| MX2 |
85.2 ± 2.8 |
442.6 ± 0.9 |
2.13 ± 0.02 |
| MX3 |
85.2 ± 2.8 |
442.5 ± 0.9 |
2.13 ± 0.02 |
| RH08 |
73.0 ± 2.2 |
143.5 ± 1.4 |
2.13 ± 0.02 |
| RH09 |
88.9 ± 2.5 |
454.1 ± 0.8 |
2.13 ± 0.02 |
| RH10 |
88.4 ± 2.4 |
455.1 ± 3.2 |
2.13 ± 0.02 |
| Average |
84.9 |
408.4 |
2.13 |
| Median |
85.2 |
442.8 |
2.13 |
| Deviation |
5.1 |
107.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
135.9 ± 1.8 |
0.7 ± 0.0 |
1.4 ± 0.0 |
63.7 ± 0.9 |
205.92 ± 5.03 |
2.13 ± 0.05 |
| VC |
136.7 ± 1.7 |
2.6 ± 0.0 |
5.5 ± 0.1 |
63.7 ± 0.9 |
52.43 ± 1.28 |
2.15 ± 0.05 |
| MX1 |
136.6 ± 1.7 |
2.2 ± 0.0 |
4.7 ± 0.1 |
63.7 ± 0.9 |
61.18 ± 1.49 |
2.15 ± 0.05 |
| MX2 |
136.6 ± 1.7 |
2.2 ± 0.0 |
4.7 ± 0.1 |
63.7 ± 0.9 |
60.85 ± 1.49 |
2.15 ± 0.05 |
| MX3 |
136.6 ± 1.7 |
2.3 ± 0.0 |
4.7 ± 0.1 |
63.7 ± 0.9 |
60.57 ± 1.48 |
2.15 ± 0.05 |
| RH8 |
13.4 ± 2.5 |
7.9 ± 0.1 |
16.3 ± 0.2 |
63.2 ± 0.9 |
1.71 ± 0.33 |
0.21 ± 0.04 |
| RH9 |
135.3 ± 1.4 |
0.5 ± 0.0 |
1.0 ± 0.0 |
63.7 ± 0.9 |
270.62 ± 6.44 |
2.12 ± 0.04 |
| RH10 |
134.6 ± 1.3 |
0.7 ± 0.0 |
1.6 ± 0.0 |
63.7 ± 0.9 |
180.84 ± 4.29 |
2.11 ± 0.04 |
| Average |
120.7 |
2.4 |
5.0 |
63.6 |
111.8 |
1.9 |
| Median |
136.6 |
2.2 |
4.7 |
63.7 |
61.2 |
2.1 |
| Deviation |
43.4 |
2.4 |
4.9 |
0.2 |
94.3 |
0.7 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
63.8 ± 1.9 |
0.9 ± 0.1 |
2.1 ± 0.0 |
92.9 ± 1.9 |
73.96 ± 4.25 |
0.69 ± 0.01 |
| VC |
63.9 ± 1.7 |
3.4 ± 0.2 |
8.2 ± 0.2 |
92.8 ± 1.9 |
18.77 ± 1.07 |
0.69 ± 0.01 |
| MX1 |
63.9 ± 1.8 |
2.9 ± 0.2 |
7.1 ± 0.1 |
92.8 ± 1.9 |
21.90 ± 1.25 |
0.69 ± 0.01 |
| MX2 |
63.9 ± 1.8 |
2.9 ± 0.2 |
7.1 ± 0.1 |
92.8 ± 1.9 |
21.78 ± 1.24 |
0.69 ± 0.01 |
| MX3 |
63.9 ± 1.8 |
3.0 ± 0.2 |
7.1 ± 0.1 |
92.8 ± 1.9 |
21.69 ± 1.23 |
0.69 ± 0.01 |
| RH8 |
6.0 ± 3.0 |
10.3 ± 0.7 |
24.6 ± 0.5 |
92.3 ± 1.9 |
0.60 ± 0.32 |
0.07 ± 0.03 |
| RH9 |
63.5 ± 1.8 |
0.7 ± 0.0 |
1.6 ± 0.0 |
92.9 ± 1.9 |
97.19 ± 5.98 |
0.68 ± 0.01 |
| RH10 |
63.2 ± 1.8 |
1.0 ± 0.1 |
2.4 ± 0.0 |
92.9 ± 1.9 |
64.98 ± 4.07 |
0.68 ± 0.01 |
| Average |
56.5 |
3.1 |
7.5 |
92.8 |
40.1 |
0.6 |
| Median |
63.9 |
2.9 |
7.1 |
92.8 |
21.9 |
0.7 |
| Deviation |
20.4 |
3.1 |
7.4 |
0.2 |
33.9 |
0.2 |
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)
| 
