Database: Ace Shock Analysis
Event ID: 20023131754
Observation time: 11/09/2002 313.74597 1754 [UT]
|
|
General
Information (About, Top)
| Year |
2002 |
| Fractional day of year |
313.745972 |
| Arrival time of shock [seconds of day] |
64452.0 ± 26.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
0.036 |
| Y GSE location of spacecraft [Re] |
0.006 |
| Z GSE location of spacecraft [Re] |
-0.003 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0032 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0031 |
| Minimum chisq/dof for RH8,RH9,RH10 |
9.17, 19.07, 19.45 |
Event added to database
|
Sun May 1 22:47:26 2005
|
Event last processed
|
Tue May 3 14:36:27 2005
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.009 ± 0.000
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-353.5 ± 1.3 |
-394.5 ± 1.3 |
| Vy GSE [km/s] |
-13.4 ± 2.5 |
-6.7 ± 1.2 |
| Vz GSE [km/s] |
-26.8 ± 2.0 |
-35.7 ± 2.2 |
| Wi [km/s] |
13.1 ± 1.5 |
17.4 ± 0.8 |
| We [km/s] |
412.8 ± 46.4 |
550.7 ± 23.9 |
| Ni [n/cc] |
12.4 ± 1.1 |
24.9 ± 1.5 |
| Bx GSE [nT] |
-3.2 ± 0.2 |
-3.4 ± 0.3 |
| By GSE [nT] |
4.1 ± 0.2 |
6.2 ± 0.3 |
| Bz GSE [nT] |
4.5 ± 0.3 |
11.1 ± 0.1 |
Plasma Beta
|
0.093 ± 0.101
|
0.093 ± 0.097
|
Sound Speed [km/s]
|
16.85 ± 1.89
|
22.48 ± 0.97
|
Alfven Speed [km/s]
|
42.93 ± 2.91
|
57.37 ± 2.26
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.790 ± 0.079 |
0.580 ± 0.107 |
-0.196 ± 0.194 |
-11.31 ± 3.04 |
143.71 ± 7.74 |
| VC |
-0.966 ± 0.016 |
0.158 ± 0.059 |
-0.207 ± 0.204 |
-11.95 ± 3.63 |
170.71 ± 3.52 |
| MX1 |
-0.968 ± 0.012 |
0.234 ± 0.047 |
-0.095 ± 0.095 |
-5.44 ± 2.94 |
166.40 ± 2.79 |
| MX2 |
-0.972 ± 0.012 |
0.216 ± 0.048 |
-0.089 ± 0.089 |
-5.13 ± 3.05 |
167.49 ± 2.86 |
| MX3 |
-0.976 ± 0.012 |
0.199 ± 0.053 |
-0.085 ± 0.084 |
-4.85 ± 3.15 |
168.46 ± 3.09 |
| RH08 |
-0.995 ± 0.001 |
0.079 ± 0.010 |
-0.061 ± 0.061 |
-3.52 ± 0.37 |
175.49 ± 0.58 |
| RH09 |
-0.995 ± 0.007 |
-0.096 ± 0.068 |
0.028 ± 0.028 |
1.60 ± 3.31 |
185.52 ± 3.94 |
| RH10 |
-0.995 ± 0.007 |
-0.096 ± 0.068 |
0.028 ± 0.028 |
1.60 ± 3.37 |
185.52 ± 3.94 |
| Average |
-0.957 |
0.159 |
-0.085 |
-4.875 |
170.411 |
| Median |
-0.972 |
0.199 |
-0.085 |
-4.850 |
170.711 |
| Deviation |
0.069 |
0.215 |
0.087 |
5.036 |
13.221 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
54.2 ± 2.0 |
352.5 ± 9.4 |
2.03 ± 0.17 |
| VC |
65.7 ± 1.7 |
429.1 ± 10.1 |
2.03 ± 0.17 |
| MX1 |
58.0 ± 1.7 |
424.8 ± 10.0 |
2.03 ± 0.17 |
| MX2 |
58.3 ± 1.7 |
426.6 ± 10.0 |
2.03 ± 0.17 |
| MX3 |
58.6 ± 1.7 |
428.0 ± 10.0 |
2.03 ± 0.17 |
| RH08 |
61.7 ± 1.7 |
435.7 ± 9.9 |
2.03 ± 0.17 |
| RH09 |
64.5 ± 1.8 |
431.4 ± 9.4 |
2.03 ± 0.17 |
| RH10 |
64.5 ± 1.8 |
431.4 ± 9.4 |
2.03 ± 0.17 |
| Average |
60.7 |
419.9 |
2.03 |
| Median |
61.7 |
429.1 |
2.03 |
| Deviation |
4.1 |
27.5 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
75.6 ± 2.0 |
9.4 ± 1.0 |
25.1 ± 1.7 |
45.2 ± 3.1 |
8.17 ± 1.01 |
1.68 ± 0.15 |
| VC |
84.3 ± 1.4 |
6.5 ± 0.7 |
17.6 ± 1.2 |
45.7 ± 3.2 |
13.08 ± 1.46 |
1.85 ± 0.15 |
| MX1 |
83.3 ± 1.6 |
8.5 ± 0.9 |
22.8 ± 1.5 |
45.3 ± 3.1 |
9.95 ± 1.12 |
1.85 ± 0.15 |
| MX2 |
83.4 ± 1.5 |
8.4 ± 0.9 |
22.6 ± 1.5 |
45.4 ± 3.1 |
10.06 ± 1.13 |
1.85 ± 0.15 |
| MX3 |
83.3 ± 1.5 |
8.3 ± 0.9 |
22.4 ± 1.5 |
45.4 ± 3.1 |
10.14 ± 1.13 |
1.84 ± 0.15 |
| RH8 |
83.3 ± 1.4 |
7.5 ± 0.8 |
20.3 ± 1.4 |
45.5 ± 3.2 |
11.17 ± 1.21 |
1.84 ± 0.14 |
| RH9 |
79.1 ± 1.3 |
6.8 ± 0.7 |
18.5 ± 1.2 |
45.6 ± 3.2 |
11.72 ± 1.20 |
1.74 ± 0.13 |
| RH10 |
79.1 ± 1.3 |
6.8 ± 0.7 |
18.5 ± 1.2 |
45.6 ± 3.2 |
11.72 ± 1.20 |
1.74 ± 0.13 |
| Average |
81.4 |
7.8 |
21.0 |
45.5 |
10.7 |
1.8 |
| Median |
83.3 |
8.3 |
22.4 |
45.5 |
11.2 |
1.8 |
| Deviation |
3.1 |
1.0 |
2.6 |
0.2 |
1.5 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
37.6 ± 1.3 |
12.5 ± 0.5 |
33.5 ± 1.3 |
60.3 ± 2.2 |
3.01 ± 0.16 |
0.62 ± 0.03 |
| VC |
41.8 ± 1.4 |
8.7 ± 0.3 |
23.6 ± 0.9 |
61.0 ± 2.2 |
4.82 ± 0.27 |
0.69 ± 0.03 |
| MX1 |
41.2 ± 1.3 |
11.3 ± 0.4 |
30.4 ± 1.2 |
60.6 ± 2.2 |
3.66 ± 0.20 |
0.68 ± 0.03 |
| MX2 |
41.3 ± 1.3 |
11.2 ± 0.4 |
30.2 ± 1.2 |
60.6 ± 2.2 |
3.70 ± 0.20 |
0.68 ± 0.03 |
| MX3 |
41.2 ± 1.3 |
11.1 ± 0.4 |
29.9 ± 1.2 |
60.6 ± 2.2 |
3.72 ± 0.20 |
0.68 ± 0.03 |
| RH8 |
41.5 ± 1.3 |
10.1 ± 0.4 |
27.2 ± 1.1 |
60.8 ± 2.2 |
4.13 ± 0.23 |
0.68 ± 0.03 |
| RH9 |
39.2 ± 1.3 |
9.1 ± 0.4 |
24.7 ± 1.0 |
60.9 ± 2.2 |
4.32 ± 0.24 |
0.64 ± 0.03 |
| RH10 |
39.2 ± 1.3 |
9.1 ± 0.4 |
24.7 ± 1.0 |
60.9 ± 2.2 |
4.32 ± 0.24 |
0.64 ± 0.03 |
| Average |
40.4 |
10.4 |
28.0 |
60.7 |
4.0 |
0.7 |
| Median |
41.2 |
11.1 |
29.9 |
60.8 |
4.1 |
0.7 |
| Deviation |
1.5 |
1.3 |
3.5 |
0.2 |
0.6 |
0.0 |
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)
| 
