Database: Ace Shock Analysis
Event ID: 20021500132
Observation time: 05/30/2002 150.06422 0132 [UT]
|
|
General
Information (About, Top)
| Year |
2002 |
| Fractional day of year |
150.064225 |
| Arrival time of shock [seconds of day] |
5549.0 ± 26.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
0.038 |
| Y GSE location of spacecraft [Re] |
0.006 |
| Z GSE location of spacecraft [Re] |
-0.001 |
| Upstream plasma points selected for analysis |
0010 |
| Upstream field points selected for analysis |
0039 |
| Downstream plasma points selected for analysis |
0010
|
| Downstream field points selected for analysis |
0040 |
| Minimum chisq/dof for RH8,RH9,RH10 |
23.27, 30.57, 34.27 |
Event added to database
|
Sun May 1 22:22:32 2005
|
Event last processed
|
Tue May 3 14:26:54 2005
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.004 ± 0.001
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-461.6 ± 1.4 |
-498.2 ± 5.5 |
| Vy GSE [km/s] |
-12.5 ± 2.3 |
18.0 ± 7.9 |
| Vz GSE [km/s] |
-22.3 ± 2.4 |
-82.2 ± 6.3 |
| Wi [km/s] |
39.5 ± 0.7 |
53.0 ± 2.8 |
| We [km/s] |
1250.6 ± 21.3 |
1677.0 ± 88.4 |
| Ni [n/cc] |
2.1 ± 0.0 |
3.7 ± 0.3 |
| Bx GSE [nT] |
-3.7 ± 0.1 |
-7.5 ± 0.7 |
| By GSE [nT] |
1.3 ± 0.2 |
-0.2 ± 0.5 |
| Bz GSE [nT] |
1.3 ± 0.1 |
3.5 ± 0.3 |
Plasma Beta
|
0.409 ± 0.416
|
0.335 ± 0.310
|
Sound Speed [km/s]
|
51.06 ± 0.87
|
68.46 ± 3.61
|
Alfven Speed [km/s]
|
61.90 ± 1.45
|
94.08 ± 11.50
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.425 ± 0.066 |
0.901 ± 0.033 |
-0.084 ± 0.084 |
-4.82 ± 7.62 |
115.23 ± 4.17 |
| VC |
-0.485 ± 0.087 |
0.396 ± 0.089 |
-0.780 ± 0.560 |
-51.24 ± 6.19 |
140.73 ± 8.43 |
| MX1 |
-0.585 ± 0.074 |
0.418 ± 0.079 |
-0.695 ± 0.552 |
-44.00 ± 5.74 |
144.45 ± 6.59 |
| MX2 |
-0.583 ± 0.071 |
0.385 ± 0.081 |
-0.716 ± 0.557 |
-45.71 ± 5.01 |
146.54 ± 7.21 |
| MX3 |
-0.581 ± 0.072 |
0.358 ± 0.087 |
-0.731 ± 0.559 |
-46.99 ± 4.70 |
148.33 ± 8.03 |
| RH08 |
-0.464 ± 0.007 |
0.586 ± 0.006 |
-0.665 ± 0.543 |
-41.67 ± 0.49 |
128.36 ± 0.58 |
| RH09 |
-0.409 ± 0.048 |
0.827 ± 0.034 |
-0.385 ± 0.365 |
-22.67 ± 4.16 |
116.32 ± 3.19 |
| RH10 |
-0.431 ± 0.061 |
0.767 ± 0.044 |
-0.475 ± 0.435 |
-28.35 ± 4.08 |
119.33 ± 4.42 |
| Average |
-0.495 |
0.580 |
-0.566 |
-35.681 |
132.410 |
| Median |
-0.464 |
0.586 |
-0.665 |
-41.667 |
140.725 |
| Deviation |
0.076 |
0.223 |
0.238 |
15.816 |
14.185 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
50.4 ± 2.3 |
295.5 ± 31.0 |
1.74 ± 0.17 |
| VC |
71.8 ± 2.1 |
415.5 ± 28.7 |
1.74 ± 0.17 |
| MX1 |
64.1 ± 2.1 |
456.6 ± 30.3 |
1.74 ± 0.17 |
| MX2 |
65.4 ± 2.1 |
456.3 ± 29.9 |
1.74 ± 0.17 |
| MX3 |
66.3 ± 2.1 |
456.7 ± 29.7 |
1.74 ± 0.17 |
| RH08 |
67.1 ± 2.2 |
393.9 ± 30.1 |
1.74 ± 0.17 |
| RH09 |
59.7 ± 2.3 |
331.3 ± 31.0 |
1.74 ± 0.17 |
| RH10 |
61.5 ± 2.3 |
354.9 ± 31.0 |
1.74 ± 0.17 |
| Average |
63.3 |
395.1 |
1.74 |
| Median |
65.4 |
415.5 |
1.74 |
| Deviation |
6.3 |
62.5 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
108.8 ± 1.6 |
26.6 ± 0.3 |
39.4 ± 0.9 |
75.7 ± 1.1 |
4.09 ± 0.09 |
1.44 ± 0.03 |
| VC |
179.3 ± 2.1 |
12.5 ± 0.2 |
19.4 ± 0.5 |
79.3 ± 1.2 |
14.39 ± 0.27 |
2.26 ± 0.05 |
| MX1 |
176.1 ± 1.9 |
17.6 ± 0.2 |
27.0 ± 0.6 |
78.3 ± 1.1 |
10.00 ± 0.18 |
2.25 ± 0.05 |
| MX2 |
176.3 ± 2.0 |
16.8 ± 0.2 |
25.8 ± 0.6 |
78.5 ± 1.1 |
10.50 ± 0.19 |
2.25 ± 0.05 |
| MX3 |
176.8 ± 2.0 |
16.2 ± 0.2 |
24.9 ± 0.6 |
78.6 ± 1.2 |
10.95 ± 0.20 |
2.25 ± 0.05 |
| RH8 |
172.4 ± 1.9 |
15.6 ± 0.2 |
24.1 ± 0.6 |
78.7 ± 1.2 |
11.02 ± 0.21 |
2.19 ± 0.05 |
| RH9 |
144.2 ± 1.7 |
20.6 ± 0.3 |
31.2 ± 0.7 |
77.6 ± 1.1 |
7.01 ± 0.14 |
1.86 ± 0.04 |
| RH10 |
154.8 ± 1.8 |
19.4 ± 0.2 |
29.6 ± 0.7 |
77.9 ± 1.1 |
7.99 ± 0.16 |
1.99 ± 0.04 |
| Average |
161.1 |
18.1 |
27.7 |
78.1 |
9.5 |
2.1 |
| Median |
176.1 |
17.6 |
27.0 |
78.5 |
10.5 |
2.2 |
| Deviation |
24.6 |
4.2 |
6.0 |
1.1 |
3.1 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
60.8 ± 7.5 |
36.9 ± 1.5 |
59.9 ± 7.3 |
110.6 ± 8.8 |
1.65 ± 0.24 |
0.55 ± 0.09 |
| VC |
102.8 ± 4.0 |
17.4 ± 0.7 |
29.4 ± 3.6 |
115.3 ± 8.7 |
5.93 ± 0.41 |
0.90 ± 0.09 |
| MX1 |
100.4 ± 4.1 |
24.5 ± 1.0 |
41.1 ± 5.0 |
114.0 ± 8.7 |
4.10 ± 0.30 |
0.89 ± 0.09 |
| MX2 |
100.4 ± 4.1 |
23.4 ± 1.0 |
39.2 ± 4.8 |
114.2 ± 8.7 |
4.30 ± 0.32 |
0.88 ± 0.09 |
| MX3 |
100.9 ± 4.1 |
22.5 ± 0.9 |
37.8 ± 4.6 |
114.4 ± 8.7 |
4.49 ± 0.33 |
0.89 ± 0.09 |
| RH8 |
97.8 ± 4.3 |
21.8 ± 0.9 |
36.7 ± 4.5 |
114.6 ± 8.7 |
4.49 ± 0.34 |
0.86 ± 0.09 |
| RH9 |
80.9 ± 5.9 |
28.6 ± 1.2 |
47.5 ± 5.8 |
113.0 ± 8.7 |
2.83 ± 0.28 |
0.72 ± 0.09 |
| RH10 |
87.2 ± 5.4 |
27.0 ± 1.1 |
44.9 ± 5.5 |
113.5 ± 8.7 |
3.24 ± 0.29 |
0.77 ± 0.09 |
| Average |
91.4 |
25.3 |
42.1 |
113.7 |
3.9 |
0.8 |
| Median |
100.4 |
24.5 |
41.1 |
114.2 |
4.3 |
0.9 |
| Deviation |
14.6 |
5.8 |
9.0 |
1.4 |
1.3 |
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)
| 
