Database: Ace Shock Analysis
Event ID: 20082230345
Observation time: 08/10/2008 223.15630 0345 [UT]
|
|
General
Information (About, Top)
| Year |
2008 |
| Fractional day of year |
223.156301 |
| Arrival time of shock [seconds of day] |
13504.4 ± 90.0 |
| Shock type |
FR |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
233.052 |
| Y GSE location of spacecraft [Re] |
40.067 |
| Z GSE location of spacecraft [Re] |
7.009 |
| Upstream plasma points selected for analysis |
0012 |
| Upstream field points selected for analysis |
0720 |
| Downstream plasma points selected for analysis |
0012
|
| Downstream field points selected for analysis |
0780 |
| Minimum chisq/dof for RH8,RH9,RH10 |
4.57, 7.57, 7.64 |
Event added to database
|
Wed Oct 15 10:22:48 2014
|
Event last processed
|
Wed Oct 15 13:03:46 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
45.005 ± 1.229
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-561.4 ± 11.5 |
-625.2 ± 5.6 |
| Vy GSE [km/s] |
44.2 ± 21.9 |
5.2 ± 11.8 |
| Vz GSE [km/s] |
-1.6 ± 18.0 |
-74.1 ± 12.7 |
| Wi [km/s] |
77.8 ± 2.2 |
51.3 ± 4.5 |
| We [km/s] |
2459.8 ± 70.7 |
1620.8 ± 143.3 |
| Ni [n/cc] |
6.0 ± 0.7 |
2.4 ± 0.1 |
| Bx GSE [nT] |
1.3 ± 1.1 |
1.4 ± 0.4 |
| By GSE [nT] |
0.3 ± 3.1 |
0.4 ± 1.0 |
| Bz GSE [nT] |
1.2 ± 2.7 |
-2.8 ± 0.8 |
Plasma Beta
|
4.469 ± 4.343
|
1.209 ± 1.023
|
Sound Speed [km/s]
|
100.42 ± 2.89
|
66.17 ± 5.85
|
Alfven Speed [km/s]
|
39.13 ± 8.26
|
48.43 ± 4.78
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.915 ± 0.204 |
-0.225 ± 0.714 |
0.335 ± 0.322 |
19.55 ± 18.30 |
193.84 ± 44.68 |
| VC |
-0.643 ± 0.143 |
-0.379 ± 0.210 |
-0.665 ± 0.543 |
-41.71 ± 7.60 |
210.55 ± 18.26 |
| MX1 |
-0.947 ± 0.131 |
-0.001 ± 0.862 |
-0.320 ± 0.309 |
-18.66 ± 23.51 |
180.04 ± 52.11 |
| MX2 |
-0.902 ± 0.117 |
-0.429 ± 0.245 |
0.041 ± 0.041 |
2.34 ± 15.64 |
205.43 ± 15.53 |
| MX3 |
-0.886 ± 0.132 |
-0.387 ± 0.280 |
-0.254 ± 0.248 |
-14.69 ± 12.42 |
203.61 ± 18.04 |
| RH08 |
-0.984 ± 0.003 |
0.112 ± 0.013 |
0.140 ± 0.139 |
8.03 ± 0.89 |
173.48 ± 0.76 |
| RH09 |
-0.999 ± 0.003 |
0.009 ± 0.068 |
-0.039 ± 0.039 |
-2.24 ± 4.06 |
179.50 ± 3.91 |
| RH10 |
-0.999 ± 0.003 |
0.009 ± 0.068 |
-0.039 ± 0.039 |
-2.24 ± 4.06 |
179.50 ± 3.91 |
| Average |
-0.910 |
-0.162 |
-0.100 |
-6.203 |
190.744 |
| Median |
-0.915 |
-0.001 |
-0.039 |
-2.241 |
193.838 |
| Deviation |
0.116 |
0.218 |
0.308 |
18.739 |
14.387 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
78.9 ± 14.3 |
472.8 ± 1.4 |
0.40 ± 0.05 |
| VC |
55.8 ± 14.1 |
273.4 ± 2.1 |
0.40 ± 0.05 |
| MX1 |
64.8 ± 16.4 |
483.6 ± 2.2 |
0.40 ± 0.05 |
| MX2 |
73.5 ± 9.3 |
441.9 ± 1.2 |
0.40 ± 0.05 |
| MX3 |
67.7 ± 12.3 |
422.4 ± 1.5 |
0.40 ± 0.05 |
| RH08 |
73.3 ± 22.4 |
530.2 ± 2.2 |
0.40 ± 0.05 |
| RH09 |
69.8 ± 16.4 |
523.5 ± 2.1 |
0.40 ± 0.05 |
| RH10 |
69.8 ± 16.4 |
523.5 ± 24.9 |
0.40 ± 0.05 |
| Average |
69.2 |
458.9 |
0.40 |
| Median |
69.8 |
483.6 |
0.40 |
| Deviation |
6.9 |
84.7 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-30.4 ± 9.5 |
7.0 ± 1.3 |
7.5 ± 1.6 |
107.8 ± 4.7 |
-4.41 ± 1.23 |
-0.28 ± 0.09 |
| VC |
-71.8 ± 14.6 |
20.8 ± 4.0 |
22.0 ± 4.6 |
105.9 ± 4.3 |
-3.53 ± 0.83 |
-0.68 ± 0.13 |
| MX1 |
-48.8 ± 12.1 |
15.6 ± 2.9 |
16.6 ± 3.5 |
106.8 ± 4.5 |
-3.19 ± 0.79 |
-0.46 ± 0.11 |
| MX2 |
-45.6 ± 7.4 |
10.4 ± 1.9 |
11.1 ± 2.4 |
107.5 ± 4.7 |
-4.47 ± 0.68 |
-0.42 ± 0.06 |
| MX3 |
-58.5 ± 9.3 |
13.9 ± 2.6 |
14.8 ± 3.1 |
107.1 ± 4.6 |
-4.29 ± 0.74 |
-0.54 ± 0.07 |
| RH8 |
-26.9 ± 13.6 |
10.5 ± 2.0 |
11.2 ± 2.4 |
107.5 ± 4.7 |
-2.59 ± 1.24 |
-0.25 ± 0.13 |
| RH9 |
-38.0 ± 11.6 |
12.6 ± 2.4 |
13.5 ± 2.9 |
107.2 ± 4.6 |
-3.04 ± 0.89 |
-0.35 ± 0.11 |
| RH10 |
-38.0 ± 11.6 |
12.6 ± 2.4 |
13.5 ± 2.9 |
107.2 ± 4.6 |
-3.04 ± 0.89 |
-0.35 ± 0.11 |
| Average |
-44.7 |
12.9 |
13.8 |
107.1 |
-3.6 |
-0.4 |
| Median |
-38.0 |
12.6 |
13.5 |
107.2 |
-3.2 |
-0.4 |
| Deviation |
14.9 |
4.1 |
4.3 |
0.6 |
0.7 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-73.3 ± 5.4 |
7.5 ± 0.4 |
9.3 ± 0.9 |
81.9 ± 2.8 |
-9.85 ± 0.70 |
-0.90 ± 0.09 |
| VC |
-175.8 ± 14.0 |
22.7 ± 1.3 |
27.3 ± 2.7 |
79.1 ± 3.0 |
-7.75 ± 0.44 |
-2.23 ± 0.23 |
| MX1 |
-132.5 ± 7.9 |
16.8 ± 0.9 |
20.6 ± 2.0 |
80.5 ± 2.9 |
-7.88 ± 0.38 |
-1.65 ± 0.15 |
| MX2 |
-117.0 ± 8.2 |
11.1 ± 0.6 |
13.8 ± 1.4 |
81.5 ± 2.8 |
-10.53 ± 0.50 |
-1.44 ± 0.14 |
| MX3 |
-148.5 ± 10.4 |
14.9 ± 0.8 |
18.4 ± 1.8 |
80.9 ± 2.9 |
-9.95 ± 0.47 |
-1.84 ± 0.18 |
| RH8 |
-75.2 ± 5.0 |
11.2 ± 0.6 |
13.9 ± 1.4 |
81.5 ± 2.8 |
-6.71 ± 0.51 |
-0.92 ± 0.09 |
| RH9 |
-104.2 ± 5.8 |
13.6 ± 0.7 |
16.8 ± 1.7 |
81.1 ± 2.8 |
-7.68 ± 0.40 |
-1.29 ± 0.11 |
| RH10 |
-104.2 ± 5.8 |
13.6 ± 0.7 |
16.8 ± 1.7 |
81.1 ± 2.8 |
-7.68 ± 0.40 |
-1.29 ± 0.11 |
| Average |
-116.3 |
13.9 |
17.1 |
81.0 |
-8.5 |
-1.4 |
| Median |
-104.2 |
13.6 |
16.8 |
81.1 |
-7.8 |
-1.3 |
| Deviation |
35.2 |
4.5 |
5.3 |
0.9 |
1.4 |
0.5 |
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)
| 
