Database: Ace Shock Analysis
Event ID: 20052521316
Observation time: 09/09/2005 252.55320 1316 [UT]
|
|
General
Information (About, Top)
| Year |
2005 |
| Fractional day of year |
252.553203 |
| Arrival time of shock [seconds of day] |
47796.8 ± 60.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
226.857 |
| Y GSE location of spacecraft [Re] |
31.442 |
| Z GSE location of spacecraft [Re] |
-8.718 |
| Upstream plasma points selected for analysis |
0009 |
| Upstream field points selected for analysis |
0572 |
| Downstream plasma points selected for analysis |
0010
|
| Downstream field points selected for analysis |
0647 |
| Minimum chisq/dof for RH8,RH9,RH10 |
7.88, 14.06, 15.06 |
Event added to database
|
Fri Oct 10 16:32:29 2014
|
Event last processed
|
Wed Oct 15 11:46:19 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
45.961 ± 2.509
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-349.1 ± 5.9 |
-435.2 ± 18.6 |
| Vy GSE [km/s] |
-27.4 ± 2.9 |
-78.2 ± 10.7 |
| Vz GSE [km/s] |
-17.6 ± 6.7 |
36.1 ± 15.0 |
| Wi [km/s] |
23.8 ± 1.4 |
48.5 ± 6.2 |
| We [km/s] |
752.3 ± 45.2 |
1532.5 ± 196.3 |
| Ni [n/cc] |
13.0 ± 1.5 |
35.7 ± 3.1 |
| Bx GSE [nT] |
1.7 ± 1.0 |
-1.6 ± 4.4 |
| By GSE [nT] |
3.6 ± 0.5 |
12.4 ± 4.0 |
| Bz GSE [nT] |
0.1 ± 0.9 |
2.2 ± 3.1 |
Plasma Beta
|
0.865 ± 0.848
|
2.589 ± 0.840
|
Sound Speed [km/s]
|
30.71 ± 1.84
|
62.57 ± 8.01
|
Alfven Speed [km/s]
|
25.66 ± 1.89
|
50.09 ± 15.62
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.833 ± 0.221 |
-0.529 ± 0.335 |
0.165 ± 0.163 |
9.49 ± 26.49 |
212.43 ± 22.91 |
| VC |
-0.755 ± 0.083 |
-0.450 ± 0.083 |
0.478 ± 0.438 |
28.54 ± 9.90 |
210.78 ± 5.42 |
| MX1 |
-0.797 ± 0.196 |
-0.376 ± 0.349 |
0.473 ± 0.434 |
28.25 ± 14.56 |
205.25 ± 24.82 |
| MX2 |
-0.790 ± 0.182 |
-0.392 ± 0.260 |
0.472 ± 0.433 |
28.14 ± 17.96 |
206.42 ± 18.22 |
| MX3 |
-0.775 ± 0.156 |
-0.389 ± 0.244 |
0.497 ± 0.452 |
29.83 ± 12.80 |
206.64 ± 17.67 |
| RH08 |
-0.925 ± 0.007 |
-0.275 ± 0.020 |
0.263 ± 0.256 |
15.22 ± 0.90 |
196.55 ± 1.21 |
| RH09 |
-0.053 ± 0.071 |
-0.291 ± 0.063 |
0.955 ± 0.376 |
72.81 ± 3.77 |
259.72 ± 13.84 |
| RH10 |
-1.000 ± 0.002 |
0.026 ± 0.069 |
0.006 ± 0.006 |
0.32 ± 4.05 |
178.50 ± 3.94 |
| Average |
-0.741 |
-0.334 |
0.414 |
26.573 |
209.535 |
| Median |
-0.790 |
-0.376 |
0.473 |
28.245 |
206.643 |
| Deviation |
0.290 |
0.167 |
0.284 |
21.604 |
22.982 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
35.1 ± 15.4 |
476.4 ± 3.0 |
2.79 ± 0.36 |
| VC |
44.2 ± 16.9 |
447.2 ± 2.6 |
2.79 ± 0.36 |
| MX1 |
48.1 ± 16.9 |
458.8 ± 2.7 |
2.79 ± 0.36 |
| MX2 |
47.1 ± 16.9 |
457.0 ± 2.7 |
2.79 ± 0.36 |
| MX3 |
47.9 ± 16.9 |
452.2 ± 2.6 |
2.79 ± 0.36 |
| RH08 |
50.7 ± 16.1 |
498.6 ± 2.9 |
2.79 ± 0.36 |
| RH09 |
74.7 ± 11.4 |
126.9 ± 2.2 |
2.79 ± 0.36 |
| RH10 |
66.6 ± 14.4 |
486.3 ± 27.4 |
2.79 ± 0.36 |
| Average |
51.8 |
425.4 |
2.79 |
| Median |
48.1 |
458.8 |
2.79 |
| Deviation |
12.7 |
121.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
174.3 ± 5.5 |
18.0 ± 1.2 |
21.0 ± 1.5 |
35.7 ± 2.2 |
9.70 ± 0.73 |
4.90 ± 0.37 |
| VC |
179.8 ± 7.0 |
15.2 ± 1.0 |
18.4 ± 1.4 |
37.0 ± 2.2 |
11.85 ± 0.94 |
4.88 ± 0.39 |
| MX1 |
178.7 ± 7.2 |
14.0 ± 0.9 |
17.1 ± 1.3 |
37.5 ± 2.3 |
12.78 ± 1.02 |
4.79 ± 0.39 |
| MX2 |
178.9 ± 7.2 |
14.3 ± 0.9 |
17.5 ± 1.3 |
37.4 ± 2.3 |
12.54 ± 1.00 |
4.81 ± 0.39 |
| MX3 |
179.6 ± 7.2 |
14.1 ± 0.9 |
17.2 ± 1.3 |
37.5 ± 2.3 |
12.79 ± 1.02 |
4.81 ± 0.39 |
| RH8 |
172.8 ± 6.7 |
13.2 ± 0.8 |
16.2 ± 1.2 |
37.8 ± 2.3 |
13.16 ± 1.00 |
4.59 ± 0.36 |
| RH9 |
117.3 ± 6.7 |
5.3 ± 0.3 |
6.8 ± 0.5 |
39.7 ± 2.4 |
22.44 ± 2.17 |
2.97 ± 0.29 |
| RH10 |
138.2 ± 6.0 |
8.0 ± 0.5 |
10.2 ± 0.8 |
39.2 ± 2.4 |
17.38 ± 1.27 |
3.53 ± 0.26 |
| Average |
165.0 |
12.8 |
15.6 |
37.7 |
14.1 |
4.4 |
| Median |
178.7 |
14.1 |
17.2 |
37.5 |
12.8 |
4.8 |
| Deviation |
23.8 |
4.1 |
4.7 |
1.2 |
4.0 |
0.7 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
66.8 ± 19.0 |
33.6 ± 8.3 |
41.0 ± 12.8 |
74.1 ± 3.9 |
2.06 ± 0.55 |
0.91 ± 0.26 |
| VC |
66.3 ± 17.1 |
28.4 ± 6.8 |
35.9 ± 11.2 |
76.4 ± 3.6 |
2.40 ± 0.51 |
0.87 ± 0.22 |
| MX1 |
65.5 ± 17.3 |
26.2 ± 6.3 |
33.5 ± 10.4 |
77.2 ± 3.5 |
2.56 ± 0.52 |
0.85 ± 0.22 |
| MX2 |
65.6 ± 17.2 |
26.8 ± 6.4 |
34.1 ± 10.6 |
77.1 ± 3.5 |
2.51 ± 0.52 |
0.85 ± 0.22 |
| MX3 |
66.3 ± 17.0 |
26.3 ± 6.3 |
33.6 ± 10.5 |
77.2 ± 3.5 |
2.59 ± 0.53 |
0.86 ± 0.22 |
| RH8 |
65.1 ± 18.6 |
24.6 ± 5.8 |
31.7 ± 9.9 |
77.8 ± 3.5 |
2.71 ± 0.61 |
0.84 ± 0.24 |
| RH9 |
46.7 ± 13.6 |
9.8 ± 2.3 |
13.3 ± 4.1 |
81.2 ± 3.5 |
4.92 ± 1.44 |
0.57 ± 0.15 |
| RH10 |
53.1 ± 18.5 |
14.9 ± 3.5 |
19.9 ± 6.2 |
80.4 ± 3.4 |
3.61 ± 0.96 |
0.66 ± 0.23 |
| Average |
61.9 |
23.8 |
30.4 |
77.7 |
2.9 |
0.8 |
| Median |
65.6 |
26.3 |
33.6 |
77.2 |
2.6 |
0.9 |
| Deviation |
7.6 |
7.7 |
9.1 |
2.2 |
0.9 |
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)
| 
