Database: Ace Shock Analysis
Event ID: 20022130424
Observation time: 08/01/2002 213.18338 0424 [UT]
|
|
General
Information (About, Top)
| Year |
2002 |
| Fractional day of year |
213.183380 |
| Arrival time of shock [seconds of day] |
15844.0 ± 16.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
0.038 |
| Y GSE location of spacecraft [Re] |
-0.006 |
| Z GSE location of spacecraft [Re] |
0.004 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0042 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0026 |
| Minimum chisq/dof for RH8,RH9,RH10 |
11.32, 25.45, 26.44 |
Event added to database
|
Sun May 1 22:34:45 2005
|
Event last processed
|
Tue May 3 14:32:29 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] |
-378.6 ± 3.2 |
-475.3 ± 9.4 |
| Vy GSE [km/s] |
-17.9 ± 4.4 |
52.9 ± 9.5 |
| Vz GSE [km/s] |
3.7 ± 11.2 |
-105.9 ± 3.8 |
| Wi [km/s] |
20.7 ± 3.7 |
40.9 ± 4.5 |
| We [km/s] |
654.1 ± 116.9 |
1293.1 ± 143.7 |
| Ni [n/cc] |
1.5 ± 0.3 |
5.1 ± 0.6 |
| Bx GSE [nT] |
5.4 ± 0.3 |
2.6 ± 0.7 |
| By GSE [nT] |
-5.9 ± 0.1 |
-2.7 ± 0.7 |
| Bz GSE [nT] |
0.7 ± 0.7 |
-13.5 ± 0.2 |
Plasma Beta
|
0.021 ± 0.022
|
0.091 ± 0.087
|
Sound Speed [km/s]
|
26.70 ± 4.77
|
52.79 ± 5.87
|
Alfven Speed [km/s]
|
142.78 ± 12.18
|
136.11 ± 7.14
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.650 ± 0.028 |
0.704 ± 0.026 |
0.286 ± 0.278 |
16.63 ± 1.86 |
132.72 ± 2.19 |
| VC |
-0.597 ± 0.047 |
0.436 ± 0.050 |
-0.674 ± 0.546 |
-42.37 ± 3.66 |
143.86 ± 4.10 |
| MX1 |
-0.582 ± 0.055 |
0.761 ± 0.042 |
0.286 ± 0.278 |
16.60 ± 1.80 |
127.41 ± 4.11 |
| MX2 |
-0.745 ± 0.035 |
0.604 ± 0.043 |
0.282 ± 0.274 |
16.37 ± 1.94 |
140.98 ± 3.28 |
| MX3 |
-0.829 ± 0.054 |
0.489 ± 0.090 |
0.271 ± 0.264 |
15.73 ± 2.08 |
149.48 ± 6.24 |
| RH08 |
-0.980 ± 0.005 |
-0.129 ± 0.034 |
0.151 ± 0.150 |
8.68 ± 0.35 |
187.52 ± 2.01 |
| RH09 |
-0.968 ± 0.017 |
0.180 ± 0.073 |
0.173 ± 0.171 |
9.97 ± 3.37 |
169.47 ± 4.30 |
| RH10 |
-0.971 ± 0.016 |
0.163 ± 0.073 |
0.173 ± 0.171 |
9.97 ± 3.48 |
170.47 ± 4.28 |
| Average |
-0.790 |
0.401 |
0.119 |
6.449 |
152.741 |
| Median |
-0.745 |
0.489 |
0.271 |
15.734 |
149.481 |
| Deviation |
0.171 |
0.307 |
0.325 |
20.015 |
20.955 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
21.6 ± 4.8 |
352.2 ± 12.5 |
3.29 ± 0.54 |
| VC |
38.9 ± 4.3 |
446.5 ± 23.0 |
3.29 ± 0.54 |
| MX1 |
22.3 ± 4.2 |
322.8 ± 12.3 |
3.29 ± 0.54 |
| MX2 |
22.8 ± 5.1 |
392.8 ± 12.8 |
3.29 ± 0.54 |
| MX3 |
26.6 ± 4.8 |
426.5 ± 13.0 |
3.29 ± 0.54 |
| RH08 |
56.5 ± 3.0 |
474.3 ± 13.0 |
3.29 ± 0.54 |
| RH09 |
39.7 ± 3.5 |
489.8 ± 13.9 |
3.29 ± 0.54 |
| RH10 |
40.6 ± 3.5 |
490.2 ± 13.9 |
3.29 ± 0.54 |
| Average |
33.6 |
424.4 |
3.29 |
| Median |
38.9 |
446.5 |
3.29 |
| Deviation |
12.4 |
63.4 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
117.6 ± 5.4 |
24.8 ± 4.4 |
132.8 ± 11.3 |
143.1 ± 12.2 |
4.88 ± 0.86 |
0.82 ± 0.05 |
| VC |
230.9 ± 6.5 |
20.6 ± 3.6 |
111.2 ± 9.5 |
143.8 ± 12.3 |
11.54 ± 2.26 |
1.62 ± 0.18 |
| MX1 |
114.9 ± 5.5 |
24.6 ± 4.4 |
132.1 ± 11.3 |
143.2 ± 12.2 |
4.79 ± 0.86 |
0.81 ± 0.05 |
| MX2 |
120.3 ± 5.4 |
24.5 ± 4.4 |
131.6 ± 11.2 |
143.2 ± 12.2 |
5.03 ± 0.88 |
0.84 ± 0.05 |
| MX3 |
120.3 ± 5.2 |
23.8 ± 4.2 |
127.7 ± 10.9 |
143.3 ± 12.2 |
5.19 ± 0.88 |
0.84 ± 0.05 |
| RH8 |
100.3 ± 4.5 |
14.6 ± 2.6 |
78.9 ± 6.7 |
144.6 ± 12.3 |
7.05 ± 1.09 |
0.70 ± 0.05 |
| RH9 |
125.8 ± 4.4 |
20.4 ± 3.6 |
109.8 ± 9.4 |
143.8 ± 12.3 |
6.33 ± 1.04 |
0.88 ± 0.06 |
| RH10 |
124.8 ± 4.4 |
20.1 ± 3.5 |
108.4 ± 9.2 |
143.9 ± 12.3 |
6.36 ± 1.04 |
0.87 ± 0.06 |
| Average |
131.9 |
21.7 |
116.6 |
143.6 |
6.4 |
0.9 |
| Median |
120.3 |
23.8 |
127.7 |
143.8 |
6.3 |
0.8 |
| Deviation |
40.8 |
3.5 |
18.6 |
0.5 |
2.2 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
36.3 ± 9.7 |
48.5 ± 5.3 |
126.6 ± 6.6 |
137.7 ± 7.3 |
0.76 ± 0.22 |
0.26 ± 0.06 |
| VC |
68.5 ± 10.1 |
39.8 ± 4.2 |
106.0 ± 5.6 |
140.5 ± 7.5 |
1.73 ± 0.29 |
0.49 ± 0.05 |
| MX1 |
36.0 ± 9.7 |
48.2 ± 5.2 |
125.9 ± 6.6 |
137.8 ± 7.3 |
0.75 ± 0.22 |
0.26 ± 0.06 |
| MX2 |
36.4 ± 9.7 |
48.0 ± 5.2 |
125.5 ± 6.6 |
137.9 ± 7.3 |
0.77 ± 0.22 |
0.26 ± 0.06 |
| MX3 |
35.2 ± 9.6 |
46.4 ± 5.0 |
121.7 ± 6.4 |
138.4 ± 7.3 |
0.77 ± 0.23 |
0.25 ± 0.06 |
| RH8 |
31.2 ± 8.5 |
27.7 ± 2.8 |
75.2 ± 3.9 |
143.4 ± 7.7 |
1.14 ± 0.35 |
0.22 ± 0.06 |
| RH9 |
38.4 ± 9.3 |
39.3 ± 4.1 |
104.7 ± 5.5 |
140.6 ± 7.5 |
0.99 ± 0.27 |
0.27 ± 0.06 |
| RH10 |
38.2 ± 9.3 |
38.7 ± 4.1 |
103.3 ± 5.4 |
140.8 ± 7.5 |
1.00 ± 0.27 |
0.27 ± 0.06 |
| Average |
40.0 |
42.1 |
111.1 |
139.7 |
1.0 |
0.3 |
| Median |
36.4 |
46.4 |
121.7 |
140.5 |
1.0 |
0.3 |
| Deviation |
11.7 |
7.2 |
17.7 |
2.0 |
0.3 |
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)
| 
