Database: Ace Shock Analysis
Event ID: 20041491107
Observation time: 05/28/2004 149.46387 1107 [UT]
|
|
General
Information (About, Top)
| Year |
2004 |
| Fractional day of year |
149.463875 |
| Arrival time of shock [seconds of day] |
40078.8 ± 40.0 |
| Shock type |
SF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
249.559 |
| Y GSE location of spacecraft [Re] |
6.571 |
| Z GSE location of spacecraft [Re] |
-2.149 |
| Upstream plasma points selected for analysis |
0004 |
| Upstream field points selected for analysis |
0308 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0236 |
| Minimum chisq/dof for RH8,RH9,RH10 |
16.65, 21.66, 26.44 |
Event added to database
|
Wed Oct 15 10:33:59 2014
|
Event last processed
|
Wed Oct 15 11:26:16 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
60.619 ± 27.958
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-365.4 ± 0.6 |
-388.2 ± 1.8 |
| Vy GSE [km/s] |
-40.1 ± 3.2 |
-27.4 ± 2.3 |
| Vz GSE [km/s] |
29.2 ± 3.6 |
21.3 ± 2.0 |
| Wi [km/s] |
17.3 ± 0.4 |
17.0 ± 0.7 |
| We [km/s] |
547.7 ± 14.0 |
538.0 ± 21.6 |
| Ni [n/cc] |
7.6 ± 0.7 |
11.4 ± 0.7 |
| Bx GSE [nT] |
-4.1 ± 0.1 |
0.2 ± 0.1 |
| By GSE [nT] |
5.9 ± 0.2 |
6.0 ± 0.1 |
| Bz GSE [nT] |
-1.8 ± 0.1 |
-0.6 ± 0.2 |
Plasma Beta
|
0.088 ± 0.091
|
0.189 ± 0.194
|
Sound Speed [km/s]
|
22.36 ± 0.57
|
21.96 ± 0.88
|
Alfven Speed [km/s]
|
58.54 ± 2.82
|
39.14 ± 1.49
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.923 ± 0.588 |
-0.383 ± 1.418 |
0.025 ± 0.025 |
1.43 ± 6.80 |
202.53 ± 88.00 |
| VC |
-0.842 ± 0.060 |
0.461 ± 0.097 |
-0.281 ± 0.273 |
-16.31 ± 6.94 |
151.29 ± 6.51 |
| MX1 |
-0.997 ± 0.017 |
-0.007 ± 1.571 |
0.082 ± 0.082 |
4.73 ± 8.71 |
180.43 ± 90.31 |
| MX2 |
-0.923 ± 0.588 |
-0.383 ± 1.419 |
0.023 ± 0.023 |
1.34 ± 6.87 |
202.52 ± 88.03 |
| MX3 |
-0.989 ± 0.033 |
0.001 ± 1.541 |
0.151 ± 0.150 |
8.67 ± 12.60 |
179.97 ± 89.29 |
| RH08 |
-0.257 ± 0.011 |
-0.007 ± 0.045 |
0.966 ± 0.337 |
75.12 ± 0.64 |
181.50 ± 10.04 |
| RH09 |
-0.257 ± 0.019 |
0.007 ± 0.079 |
0.966 ± 0.337 |
75.12 ± 1.11 |
178.50 ± 17.62 |
| RH10 |
-0.260 ± 0.047 |
0.141 ± 0.065 |
0.955 ± 0.376 |
72.81 ± 2.24 |
151.42 ± 13.83 |
| Average |
-0.681 |
-0.021 |
0.361 |
27.864 |
178.519 |
| Median |
-0.842 |
0.001 |
0.151 |
8.667 |
180.428 |
| Deviation |
0.354 |
0.273 |
0.514 |
39.177 |
19.430 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
78.3 ± 0.6 |
402.4 ± 3.1 |
1.51 ± 0.21 |
| VC |
25.6 ± 0.6 |
363.7 ± 7.3 |
1.51 ± 0.21 |
| MX1 |
58.1 ± 0.6 |
433.9 ± 4.8 |
1.51 ± 0.21 |
| MX2 |
78.3 ± 0.6 |
402.4 ± 3.1 |
1.51 ± 0.21 |
| MX3 |
59.1 ± 0.6 |
431.3 ± 4.6 |
1.51 ± 0.21 |
| RH08 |
84.7 ± 1.2 |
115.8 ± 2.3 |
1.51 ± 0.21 |
| RH09 |
85.3 ± 1.2 |
115.6 ± 2.2 |
1.51 ± 0.21 |
| RH10 |
88.3 ± 1.2 |
116.8 ± 6.3 |
1.51 ± 0.21 |
| Average |
69.7 |
297.7 |
1.51 |
| Median |
78.3 |
402.4 |
1.51 |
| Deviation |
21.2 |
152.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
48.8 ± 1.8 |
4.2 ± 0.1 |
11.8 ± 0.6 |
62.5 ± 2.6 |
11.54 ± 0.42 |
0.78 ± 0.04 |
| VC |
82.7 ± 1.7 |
19.9 ± 0.5 |
52.8 ± 2.5 |
59.4 ± 2.7 |
4.17 ± 0.11 |
1.39 ± 0.08 |
| MX1 |
67.0 ± 0.8 |
11.2 ± 0.2 |
30.9 ± 1.5 |
61.7 ± 2.6 |
5.98 ± 0.13 |
1.09 ± 0.04 |
| MX2 |
48.9 ± 1.8 |
4.2 ± 0.1 |
11.9 ± 0.6 |
62.5 ± 2.6 |
11.52 ± 0.42 |
0.78 ± 0.04 |
| MX3 |
65.7 ± 1.0 |
10.9 ± 0.2 |
30.1 ± 1.4 |
61.7 ± 2.6 |
6.03 ± 0.15 |
1.07 ± 0.03 |
| RH8 |
-6.5 ± 3.6 |
1.9 ± 0.0 |
5.4 ± 0.3 |
62.6 ± 2.6 |
-3.33 ± 1.82 |
-0.10 ± 0.06 |
| RH9 |
-6.1 ± 3.5 |
1.7 ± 0.0 |
4.8 ± 0.2 |
62.6 ± 2.6 |
-3.56 ± 2.05 |
-0.10 ± 0.06 |
| RH10 |
-0.3 ± 3.3 |
0.6 ± 0.0 |
1.7 ± 0.1 |
62.7 ± 2.6 |
-0.41 ± 5.37 |
-0.01 ± 0.05 |
| Average |
37.5 |
6.8 |
18.7 |
62.0 |
4.0 |
0.6 |
| Median |
48.9 |
4.2 |
11.9 |
62.5 |
6.0 |
0.8 |
| Deviation |
36.3 |
6.6 |
17.7 |
1.1 |
6.0 |
0.6 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
32.9 ± 1.0 |
3.9 ± 0.1 |
7.9 ± 0.3 |
44.7 ± 1.6 |
8.46 ± 0.46 |
0.74 ± 0.04 |
| VC |
55.5 ± 3.0 |
19.1 ± 0.7 |
35.3 ± 1.3 |
40.6 ± 1.5 |
2.91 ± 0.20 |
1.37 ± 0.11 |
| MX1 |
45.0 ± 1.6 |
10.4 ± 0.4 |
20.7 ± 0.8 |
43.7 ± 1.6 |
4.34 ± 0.25 |
1.03 ± 0.06 |
| MX2 |
32.9 ± 1.0 |
3.9 ± 0.1 |
7.9 ± 0.3 |
44.7 ± 1.6 |
8.45 ± 0.46 |
0.74 ± 0.04 |
| MX3 |
44.3 ± 1.5 |
10.1 ± 0.4 |
20.1 ± 0.8 |
43.7 ± 1.6 |
4.39 ± 0.25 |
1.02 ± 0.06 |
| RH8 |
-4.6 ± 1.6 |
1.8 ± 0.1 |
3.6 ± 0.1 |
44.8 ± 1.7 |
-2.59 ± 0.89 |
-0.10 ± 0.04 |
| RH9 |
-4.4 ± 1.5 |
1.6 ± 0.1 |
3.2 ± 0.1 |
44.9 ± 1.7 |
-2.80 ± 0.99 |
-0.10 ± 0.04 |
| RH10 |
-0.4 ± 1.2 |
0.6 ± 0.0 |
1.2 ± 0.0 |
44.9 ± 1.7 |
-0.75 ± 2.13 |
-0.01 ± 0.03 |
| Average |
25.1 |
6.4 |
12.5 |
44.0 |
2.8 |
0.6 |
| Median |
32.9 |
3.9 |
7.9 |
44.7 |
4.3 |
0.7 |
| Deviation |
24.5 |
6.3 |
11.8 |
1.5 |
4.5 |
0.6 |
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)
| 
