Database: Ace Shock Analysis
Event ID: 20081670110
Observation time: 06/15/2008 167.04888 0110 [UT]
|
|
General
Information (About, Top)
| Year |
2008 |
| Fractional day of year |
167.048877 |
| Arrival time of shock [seconds of day] |
4223.0 ± 80.0 |
| Shock type |
FR |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
226.365 |
| Y GSE location of spacecraft [Re] |
-23.359 |
| Z GSE location of spacecraft [Re] |
17.504 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0489 |
| Downstream plasma points selected for analysis |
0012
|
| Downstream field points selected for analysis |
0727 |
| Minimum chisq/dof for RH8,RH9,RH10 |
3.39, 9.22, 9.49 |
Event added to database
|
Wed Oct 15 10:53:29 2014
|
Event last processed
|
Wed Oct 15 13:06:31 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
46.927 ± 0.303
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-533.6 ± 3.2 |
-573.2 ± 5.2 |
| Vy GSE [km/s] |
82.9 ± 5.6 |
35.7 ± 7.6 |
| Vz GSE [km/s] |
-8.5 ± 9.9 |
-6.4 ± 7.3 |
| Wi [km/s] |
76.0 ± 1.3 |
68.9 ± 0.6 |
| We [km/s] |
2402.3 ± 40.0 |
2177.9 ± 18.4 |
| Ni [n/cc] |
12.2 ± 0.7 |
7.1 ± 0.6 |
| Bx GSE [nT] |
2.5 ± 1.0 |
3.6 ± 0.8 |
| By GSE [nT] |
-3.1 ± 2.1 |
-2.6 ± 2.5 |
| Bz GSE [nT] |
10.8 ± 1.9 |
5.4 ± 1.3 |
Plasma Beta
|
1.144 ± 1.068
|
1.250 ± 1.247
|
Sound Speed [km/s]
|
98.07 ± 1.63
|
88.91 ± 0.75
|
Alfven Speed [km/s]
|
73.80 ± 11.98
|
61.75 ± 2.68
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.868 ± 0.204 |
0.271 ± 0.566 |
-0.416 ± 0.390 |
-24.57 ± 14.91 |
162.67 ± 37.28 |
| VC |
-0.645 ± 0.073 |
-0.763 ± 0.061 |
0.031 ± 0.031 |
1.77 ± 10.66 |
229.80 ± 5.44 |
| MX1 |
-0.710 ± 0.155 |
-0.679 ± 0.161 |
-0.189 ± 0.186 |
-10.88 ± 19.86 |
223.73 ± 12.44 |
| MX2 |
-0.857 ± 0.254 |
-0.408 ± 0.505 |
-0.314 ± 0.304 |
-18.33 ± 17.25 |
205.48 ± 33.62 |
| MX3 |
-0.683 ± 0.173 |
-0.714 ± 0.166 |
-0.157 ± 0.156 |
-9.04 ± 18.74 |
226.28 ± 13.59 |
| RH08 |
-0.885 ± 0.009 |
0.462 ± 0.017 |
-0.061 ± 0.061 |
-3.52 ± 1.02 |
152.42 ± 1.08 |
| RH09 |
-0.978 ± 0.015 |
-0.147 ± 0.069 |
-0.151 ± 0.150 |
-8.68 ± 4.03 |
188.52 ± 4.07 |
| RH10 |
-0.978 ± 0.015 |
-0.147 ± 0.069 |
-0.151 ± 0.150 |
-8.68 ± 4.03 |
188.52 ± 4.07 |
| Average |
-0.825 |
-0.266 |
-0.176 |
-10.241 |
197.178 |
| Median |
-0.857 |
-0.147 |
-0.151 |
-8.675 |
205.476 |
| Deviation |
0.130 |
0.461 |
0.139 |
8.167 |
29.347 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
49.8 ± 6.7 |
458.7 ± 1.4 |
0.61 ± 0.03 |
| VC |
85.0 ± 5.5 |
199.0 ± 3.0 |
0.61 ± 0.03 |
| MX1 |
81.3 ± 5.5 |
243.0 ± 2.8 |
0.61 ± 0.03 |
| MX2 |
68.3 ± 4.0 |
352.4 ± 2.3 |
0.61 ± 0.03 |
| MX3 |
83.9 ± 5.7 |
225.2 ± 2.8 |
0.61 ± 0.03 |
| RH08 |
68.1 ± 9.3 |
492.8 ± 1.1 |
0.61 ± 0.03 |
| RH09 |
71.7 ± 4.2 |
449.4 ± 1.9 |
0.61 ± 0.03 |
| RH10 |
71.7 ± 4.2 |
449.4 ± 18.4 |
0.61 ± 0.03 |
| Average |
72.5 |
358.7 |
0.61 |
| Median |
71.7 |
449.4 |
0.61 |
| Deviation |
11.4 |
120.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-30.6 ± 5.1 |
39.9 ± 4.6 |
47.6 ± 7.7 |
116.4 ± 6.2 |
-0.78 ± 0.19 |
-0.26 ± 0.05 |
| VC |
-81.7 ± 4.1 |
5.1 ± 0.6 |
6.5 ± 1.0 |
123.0 ± 7.3 |
-16.13 ± 2.14 |
-0.67 ± 0.05 |
| MX1 |
-80.9 ± 3.8 |
8.9 ± 1.0 |
11.2 ± 1.8 |
122.7 ± 7.3 |
-9.25 ± 1.35 |
-0.66 ± 0.06 |
| MX2 |
-73.7 ± 3.7 |
22.0 ± 2.4 |
27.3 ± 4.4 |
121.1 ± 7.0 |
-3.40 ± 0.53 |
-0.61 ± 0.06 |
| MX3 |
-81.2 ± 3.8 |
6.3 ± 0.7 |
7.9 ± 1.3 |
122.9 ± 7.3 |
-13.13 ± 1.90 |
-0.66 ± 0.06 |
| RH8 |
-18.2 ± 4.4 |
22.2 ± 2.5 |
27.6 ± 4.5 |
121.0 ± 7.0 |
-0.82 ± 0.20 |
-0.15 ± 0.04 |
| RH9 |
-61.5 ± 3.0 |
18.6 ± 2.0 |
23.1 ± 3.8 |
121.7 ± 7.1 |
-3.35 ± 0.46 |
-0.51 ± 0.04 |
| RH10 |
-61.5 ± 3.0 |
18.6 ± 2.0 |
23.1 ± 3.8 |
121.7 ± 7.1 |
-3.35 ± 0.46 |
-0.51 ± 0.04 |
| Average |
-61.1 |
17.7 |
21.8 |
121.3 |
-6.3 |
-0.5 |
| Median |
-61.5 |
18.6 |
23.1 |
121.7 |
-3.4 |
-0.5 |
| Deviation |
24.4 |
11.3 |
13.5 |
2.1 |
5.8 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-51.2 ± 5.4 |
34.5 ± 1.1 |
39.8 ± 1.7 |
102.6 ± 1.6 |
-1.48 ± 0.13 |
-0.50 ± 0.05 |
| VC |
-143.4 ± 8.4 |
4.4 ± 0.1 |
5.4 ± 0.2 |
108.2 ± 1.9 |
-32.30 ± 1.86 |
-1.33 ± 0.07 |
| MX1 |
-140.7 ± 8.1 |
7.7 ± 0.2 |
9.3 ± 0.4 |
108.0 ± 1.9 |
-18.31 ± 0.95 |
-1.30 ± 0.07 |
| MX2 |
-126.2 ± 7.2 |
19.0 ± 0.6 |
22.8 ± 1.0 |
106.6 ± 1.8 |
-6.63 ± 0.32 |
-1.18 ± 0.06 |
| MX3 |
-141.6 ± 8.2 |
5.4 ± 0.2 |
6.6 ± 0.3 |
108.1 ± 1.9 |
-26.07 ± 1.38 |
-1.31 ± 0.07 |
| RH8 |
-31.2 ± 3.7 |
19.2 ± 0.6 |
23.1 ± 1.0 |
106.5 ± 1.8 |
-1.62 ± 0.18 |
-0.29 ± 0.03 |
| RH9 |
-106.8 ± 6.1 |
16.1 ± 0.5 |
19.4 ± 0.8 |
107.1 ± 1.8 |
-6.64 ± 0.33 |
-1.00 ± 0.05 |
| RH10 |
-106.8 ± 6.1 |
16.1 ± 0.5 |
19.4 ± 0.8 |
107.1 ± 1.8 |
-6.64 ± 0.33 |
-1.00 ± 0.05 |
| Average |
-106.0 |
15.3 |
18.2 |
106.8 |
-12.5 |
-1.0 |
| Median |
-106.8 |
16.1 |
19.4 |
107.1 |
-6.6 |
-1.0 |
| Deviation |
42.9 |
9.8 |
11.3 |
1.8 |
11.7 |
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 Mon Apr 13 08:55:21 2009
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
