Database: Ace Shock Analysis
Event ID: 20013630447
Observation time: 12/29/2001 363.19964 0447 [UT]
|
|
General
Information (About, Top)
| Year |
2001 |
| Fractional day of year |
363.199641 |
| Arrival time of shock [seconds of day] |
17249.0 ± 26.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
0.038 |
| Y GSE location of spacecraft [Re] |
0.002 |
| Z GSE location of spacecraft [Re] |
0.003 |
| Upstream plasma points selected for analysis |
0013 |
| Upstream field points selected for analysis |
0049 |
| Downstream plasma points selected for analysis |
0010
|
| Downstream field points selected for analysis |
0038 |
| Minimum chisq/dof for RH8,RH9,RH10 |
8.80, 12.90, 13.09 |
Event added to database
|
Sun May 1 15:41:53 2005
|
Event last processed
|
Tue May 3 14:13:01 2005
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.008 ± 0.001
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-364.3 ± 2.9 |
-448.3 ± 8.7 |
| Vy GSE [km/s] |
7.8 ± 4.4 |
7.2 ± 4.4 |
| Vz GSE [km/s] |
-11.2 ± 4.4 |
12.2 ± 5.6 |
| Wi [km/s] |
15.7 ± 2.2 |
37.7 ± 1.7 |
| We [km/s] |
496.4 ± 68.1 |
1191.0 ± 53.2 |
| Ni [n/cc] |
12.4 ± 1.8 |
47.1 ± 7.7 |
| Bx GSE [nT] |
4.3 ± 0.5 |
7.2 ± 1.3 |
| By GSE [nT] |
-1.8 ± 0.5 |
-7.5 ± 0.6 |
| Bz GSE [nT] |
3.8 ± 0.7 |
14.6 ± 0.5 |
Plasma Beta
|
0.181 ± 0.178
|
0.435 ± 0.436
|
Sound Speed [km/s]
|
20.26 ± 2.78
|
48.62 ± 2.17
|
Alfven Speed [km/s]
|
37.65 ± 4.52
|
57.52 ± 3.46
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.980 ± 0.047 |
-0.118 ± 0.301 |
0.163 ± 0.161 |
9.37 ± 10.86 |
186.87 ± 17.61 |
| VC |
-0.963 ± 0.024 |
-0.005 ± 0.068 |
0.271 ± 0.264 |
15.72 ± 4.99 |
180.32 ± 4.04 |
| MX1 |
-0.966 ± 0.027 |
-0.005 ± 0.082 |
0.258 ± 0.252 |
14.93 ± 6.08 |
180.30 ± 4.86 |
| MX2 |
-0.965 ± 0.027 |
0.001 ± 0.083 |
0.261 ± 0.255 |
15.11 ± 5.93 |
179.97 ± 4.91 |
| MX3 |
-0.965 ± 0.027 |
0.003 ± 0.084 |
0.262 ± 0.256 |
15.18 ± 5.86 |
179.83 ± 5.00 |
| RH08 |
-0.981 ± 0.001 |
-0.009 ± 0.010 |
0.196 ± 0.193 |
11.28 ± 0.38 |
180.50 ± 0.58 |
| RH09 |
-0.978 ± 0.014 |
0.009 ± 0.071 |
0.207 ± 0.204 |
11.93 ± 3.93 |
179.50 ± 4.15 |
| RH10 |
-0.978 ± 0.014 |
0.009 ± 0.071 |
0.207 ± 0.204 |
11.93 ± 3.96 |
179.50 ± 4.15 |
| Average |
-0.972 |
-0.015 |
0.228 |
13.180 |
180.848 |
| Median |
-0.966 |
0.001 |
0.258 |
14.930 |
180.301 |
| Deviation |
0.008 |
0.042 |
0.040 |
2.344 |
2.462 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
56.1 ± 3.4 |
470.6 ± 19.1 |
3.92 ± 0.88 |
| VC |
59.2 ± 3.5 |
465.0 ± 18.2 |
3.92 ± 0.88 |
| MX1 |
58.5 ± 3.5 |
466.3 ± 18.3 |
3.92 ± 0.88 |
| MX2 |
58.6 ± 3.5 |
466.1 ± 18.3 |
3.92 ± 0.88 |
| MX3 |
58.6 ± 3.5 |
466.0 ± 18.3 |
3.92 ± 0.88 |
| RH08 |
55.2 ± 3.4 |
472.3 ± 18.8 |
3.92 ± 0.88 |
| RH09 |
55.5 ± 3.5 |
471.3 ± 18.7 |
3.92 ± 0.88 |
| RH10 |
55.5 ± 3.5 |
471.3 ± 18.7 |
3.92 ± 0.88 |
| Average |
57.2 |
468.6 |
3.92 |
| Median |
58.5 |
470.6 |
3.92 |
| Deviation |
1.7 |
3.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
116.5 ± 2.8 |
10.2 ± 1.2 |
21.0 ± 2.5 |
41.6 ± 4.5 |
11.60 ± 1.47 |
2.83 ± 0.34 |
| VC |
117.3 ± 3.1 |
9.3 ± 1.1 |
19.3 ± 2.3 |
41.8 ± 4.5 |
12.79 ± 1.57 |
2.84 ± 0.33 |
| MX1 |
117.2 ± 3.1 |
9.5 ± 1.2 |
19.7 ± 2.4 |
41.8 ± 4.5 |
12.49 ± 1.54 |
2.84 ± 0.33 |
| MX2 |
117.3 ± 3.1 |
9.5 ± 1.2 |
19.6 ± 2.4 |
41.8 ± 4.5 |
12.52 ± 1.54 |
2.84 ± 0.33 |
| MX3 |
117.3 ± 3.1 |
9.5 ± 1.2 |
19.6 ± 2.4 |
41.8 ± 4.5 |
12.53 ± 1.54 |
2.84 ± 0.33 |
| RH8 |
117.3 ± 3.0 |
10.4 ± 1.3 |
21.5 ± 2.6 |
41.5 ± 4.5 |
11.39 ± 1.42 |
2.86 ± 0.34 |
| RH9 |
117.1 ± 3.1 |
10.4 ± 1.3 |
21.3 ± 2.6 |
41.6 ± 4.5 |
11.44 ± 1.43 |
2.85 ± 0.34 |
| RH10 |
117.1 ± 3.1 |
10.4 ± 1.3 |
21.3 ± 2.6 |
41.6 ± 4.5 |
11.44 ± 1.43 |
2.85 ± 0.34 |
| Average |
117.2 |
9.9 |
20.4 |
41.7 |
12.0 |
2.8 |
| Median |
117.3 |
10.2 |
21.0 |
41.8 |
12.5 |
2.8 |
| Deviation |
0.3 |
0.5 |
0.9 |
0.1 |
0.6 |
0.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
30.3 ± 8.3 |
21.5 ± 0.5 |
32.0 ± 1.9 |
72.2 ± 2.3 |
1.41 ± 0.38 |
0.42 ± 0.12 |
| VC |
30.1 ± 7.8 |
19.6 ± 0.5 |
29.4 ± 1.8 |
72.8 ± 2.3 |
1.53 ± 0.39 |
0.41 ± 0.11 |
| MX1 |
30.1 ± 7.8 |
20.1 ± 0.5 |
30.0 ± 1.8 |
72.7 ± 2.3 |
1.50 ± 0.38 |
0.41 ± 0.11 |
| MX2 |
30.1 ± 7.8 |
20.0 ± 0.5 |
30.0 ± 1.8 |
72.7 ± 2.3 |
1.50 ± 0.38 |
0.42 ± 0.11 |
| MX3 |
30.2 ± 7.8 |
20.0 ± 0.5 |
30.0 ± 1.8 |
72.7 ± 2.3 |
1.50 ± 0.38 |
0.42 ± 0.11 |
| RH8 |
30.3 ± 8.1 |
22.1 ± 0.5 |
32.8 ± 2.0 |
72.1 ± 2.3 |
1.37 ± 0.36 |
0.42 ± 0.11 |
| RH9 |
30.1 ± 8.0 |
21.9 ± 0.5 |
32.6 ± 2.0 |
72.1 ± 2.3 |
1.37 ± 0.36 |
0.42 ± 0.11 |
| RH10 |
30.1 ± 8.0 |
21.9 ± 0.5 |
32.6 ± 2.0 |
72.1 ± 2.3 |
1.37 ± 0.36 |
0.42 ± 0.11 |
| Average |
30.2 |
20.9 |
31.2 |
72.4 |
1.4 |
0.4 |
| Median |
30.1 |
21.5 |
32.0 |
72.7 |
1.5 |
0.4 |
| Deviation |
0.1 |
1.1 |
1.4 |
0.3 |
0.1 |
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)
| 
