Database: Ace Shock Analysis
Event ID: 20003051630
Observation time: 10/31/2000 305.68765 1630 [UT]
|
|
General
Information (About, Top)
| Year |
2000 |
| Fractional day of year |
305.687650 |
| Arrival time of shock [seconds of day] |
59413.0 ± 32.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
0.035 |
| Y GSE location of spacecraft [Re] |
0.001 |
| Z GSE location of spacecraft [Re] |
-0.004 |
| Upstream plasma points selected for analysis |
0012 |
| Upstream field points selected for analysis |
0046 |
| Downstream plasma points selected for analysis |
0010
|
| Downstream field points selected for analysis |
0038 |
| Minimum chisq/dof for RH8,RH9,RH10 |
4.26, 5.99, 6.07 |
Event added to database
|
Sat Apr 30 21:48:06 2005
|
Event last processed
|
Tue May 3 13:37:44 2005
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.008 ± 0.000
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-349.7 ± 3.0 |
-437.4 ± 16.5 |
| Vy GSE [km/s] |
28.1 ± 4.7 |
3.9 ± 17.0 |
| Vz GSE [km/s] |
4.8 ± 5.2 |
56.9 ± 14.5 |
| Wi [km/s] |
37.5 ± 3.3 |
53.1 ± 14.9 |
| We [km/s] |
1184.8 ± 104.7 |
1680.1 ± 472.4 |
| Ni [n/cc] |
7.1 ± 0.6 |
20.7 ± 2.5 |
| Bx GSE [nT] |
-4.9 ± 0.4 |
-3.6 ± 4.6 |
| By GSE [nT] |
-2.1 ± 0.9 |
1.6 ± 8.4 |
| Bz GSE [nT] |
-1.9 ± 1.1 |
-5.3 ± 4.8 |
Plasma Beta
|
0.611 ± 0.581
|
0.948 ± 0.971
|
Sound Speed [km/s]
|
48.37 ± 4.27
|
68.59 ± 19.29
|
Alfven Speed [km/s]
|
48.13 ± 1.73
|
57.76 ± 5.87
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.971 ± 0.116 |
-0.204 ± 0.482 |
-0.125 ± 0.124 |
-7.16 ± 26.34 |
191.85 ± 28.41 |
| VC |
-0.839 ± 0.087 |
-0.221 ± 0.145 |
0.497 ± 0.451 |
29.81 ± 9.32 |
194.74 ± 9.77 |
| MX1 |
-0.952 ± 0.181 |
-0.271 ± 0.502 |
0.143 ± 0.142 |
8.22 ± 46.31 |
195.92 ± 30.17 |
| MX2 |
-0.955 ± 0.117 |
-0.178 ± 0.314 |
0.238 ± 0.234 |
13.79 ± 24.88 |
190.55 ± 18.78 |
| MX3 |
-0.931 ± 0.146 |
-0.179 ± 0.341 |
0.319 ± 0.308 |
18.60 ± 23.97 |
190.88 ± 20.94 |
| RH08 |
-0.994 ± 0.002 |
0.009 ± 0.018 |
0.106 ± 0.106 |
6.09 ± 0.81 |
179.50 ± 1.04 |
| RH09 |
-0.998 ± 0.004 |
0.061 ± 0.069 |
-0.006 ± 0.006 |
-0.32 ± 4.05 |
176.49 ± 3.94 |
| RH10 |
-0.998 ± 0.004 |
0.061 ± 0.069 |
-0.006 ± 0.006 |
-0.32 ± 4.05 |
176.49 ± 3.94 |
| Average |
-0.955 |
-0.115 |
0.146 |
8.589 |
187.053 |
| Median |
-0.955 |
-0.178 |
0.143 |
8.221 |
190.881 |
| Deviation |
0.053 |
0.136 |
0.201 |
11.896 |
8.175 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
19.8 ± 8.0 |
459.8 ± 26.3 |
2.89 ± 0.42 |
| VC |
50.0 ± 11.2 |
450.2 ± 22.3 |
2.89 ± 0.42 |
| MX1 |
29.6 ± 10.4 |
475.6 ± 25.0 |
2.89 ± 0.42 |
| MX2 |
36.1 ± 10.3 |
485.9 ± 24.3 |
2.89 ± 0.42 |
| MX3 |
40.3 ± 10.6 |
480.5 ± 23.7 |
2.89 ± 0.42 |
| RH08 |
35.6 ± 9.2 |
489.8 ± 24.8 |
2.89 ± 0.42 |
| RH09 |
33.7 ± 8.9 |
480.5 ± 25.2 |
2.89 ± 0.42 |
| RH10 |
33.7 ± 8.9 |
480.5 ± 25.2 |
2.89 ± 0.42 |
| Average |
34.8 |
475.3 |
2.89 |
| Median |
35.6 |
480.5 |
2.89 |
| Deviation |
8.6 |
13.5 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
126.5 ± 2.3 |
39.0 ± 2.0 |
45.3 ± 1.6 |
56.0 ± 3.0 |
3.25 ± 0.14 |
2.26 ± 0.10 |
| VC |
160.5 ± 4.6 |
23.3 ± 1.2 |
31.0 ± 1.1 |
64.2 ± 3.4 |
6.91 ± 0.29 |
2.50 ± 0.11 |
| MX1 |
149.7 ± 3.3 |
34.2 ± 1.8 |
41.9 ± 1.5 |
59.1 ± 3.1 |
4.39 ± 0.19 |
2.54 ± 0.11 |
| MX2 |
155.8 ± 3.6 |
30.8 ± 1.6 |
38.9 ± 1.4 |
61.0 ± 3.2 |
5.07 ± 0.20 |
2.56 ± 0.10 |
| MX3 |
158.5 ± 3.9 |
28.6 ± 1.5 |
36.7 ± 1.3 |
62.0 ± 3.3 |
5.56 ± 0.22 |
2.56 ± 0.10 |
| RH8 |
141.3 ± 3.3 |
31.1 ± 1.6 |
39.1 ± 1.4 |
60.8 ± 3.2 |
4.55 ± 0.16 |
2.33 ± 0.08 |
| RH9 |
129.7 ± 3.1 |
32.1 ± 1.7 |
40.1 ± 1.4 |
60.3 ± 3.2 |
4.05 ± 0.14 |
2.15 ± 0.07 |
| RH10 |
129.7 ± 3.1 |
32.1 ± 1.7 |
40.1 ± 1.4 |
60.3 ± 3.2 |
4.05 ± 0.14 |
2.15 ± 0.07 |
| Average |
144.0 |
31.4 |
39.1 |
60.5 |
4.7 |
2.4 |
| Median |
149.7 |
32.1 |
40.1 |
60.8 |
4.6 |
2.5 |
| Deviation |
14.0 |
4.5 |
4.1 |
2.3 |
1.1 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
42.9 ± 17.9 |
46.8 ± 11.7 |
54.4 ± 5.5 |
77.7 ± 7.4 |
1.01 ± 0.60 |
0.55 ± 0.21 |
| VC |
55.6 ± 15.7 |
28.6 ± 6.8 |
37.1 ± 3.8 |
86.4 ± 9.6 |
2.17 ± 1.28 |
0.65 ± 0.18 |
| MX1 |
52.2 ± 17.5 |
41.5 ± 10.2 |
50.2 ± 5.1 |
80.8 ± 8.1 |
1.40 ± 0.81 |
0.64 ± 0.19 |
| MX2 |
55.4 ± 16.6 |
37.6 ± 9.1 |
46.6 ± 4.7 |
82.8 ± 8.6 |
1.65 ± 0.98 |
0.67 ± 0.19 |
| MX3 |
55.9 ± 16.3 |
35.0 ± 8.4 |
44.0 ± 4.5 |
84.0 ± 8.9 |
1.79 ± 1.06 |
0.67 ± 0.18 |
| RH8 |
48.8 ± 16.1 |
37.9 ± 9.2 |
47.0 ± 4.8 |
82.6 ± 8.6 |
1.45 ± 0.92 |
0.59 ± 0.18 |
| RH9 |
43.9 ± 16.2 |
39.1 ± 9.5 |
48.1 ± 4.9 |
82.0 ± 8.4 |
1.27 ± 0.82 |
0.54 ± 0.18 |
| RH10 |
43.9 ± 16.2 |
39.1 ± 9.5 |
48.1 ± 4.9 |
82.0 ± 8.4 |
1.27 ± 0.82 |
0.54 ± 0.18 |
| Average |
49.8 |
38.2 |
46.9 |
82.3 |
1.5 |
0.6 |
| Median |
52.2 |
39.1 |
48.1 |
82.6 |
1.4 |
0.6 |
| Deviation |
5.7 |
5.2 |
5.0 |
2.5 |
0.4 |
0.1 |
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)
| 
