Database: Ace Shock Analysis
Event ID: 20140841924
Observation time: 03/25/2014 84.80898 1924 [UT]
|
|
General
Information (About, Top)
| Year |
2014 |
| Fractional day of year |
84.808982 |
| Arrival time of shock [seconds of day] |
69896.0 ± 90.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
221.832 |
| Y GSE location of spacecraft [Re] |
-18.560 |
| Z GSE location of spacecraft [Re] |
-22.662 |
| Upstream plasma points selected for analysis |
0006 |
| Upstream field points selected for analysis |
0006 |
| Downstream plasma points selected for analysis |
0005
|
| Downstream field points selected for analysis |
0005 |
| Minimum chisq/dof for RH8,RH9,RH10 |
11.73, 38.67, 45.70 |
Event added to database
|
Fri Oct 10 15:13:49 2014
|
Event last processed
|
Tue Oct 14 16:29:49 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
76.316 ± 29.385
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-376.2 ± 2.8 |
-463.5 ± 5.9 |
| Vy GSE [km/s] |
-52.3 ± 2.7 |
-93.1 ± 5.3 |
| Vz GSE [km/s] |
12.0 ± 1.5 |
-8.5 ± 4.5 |
| Wi [km/s] |
31.0 ± 1.7 |
43.3 ± 2.7 |
| We [km/s] |
979.4 ± 52.8 |
1370.4 ± 86.1 |
| Ni [n/cc] |
3.5 ± 0.3 |
9.8 ± 1.1 |
| Bx GSE [nT] |
0.4 ± 0.2 |
7.1 ± 1.2 |
| By GSE [nT] |
-0.0 ± 0.3 |
-7.4 ± 0.4 |
| Bz GSE [nT] |
-2.3 ± 0.2 |
2.0 ± 1.5 |
Plasma Beta
|
1.322 ± 1.489
|
0.356 ± 0.349
|
Sound Speed [km/s]
|
39.98 ± 2.16
|
55.95 ± 3.52
|
Alfven Speed [km/s]
|
27.44 ± 2.80
|
73.51 ± 5.18
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.359 ± 0.096 |
0.204 ± 0.101 |
0.911 ± 0.472 |
65.65 ± 5.83 |
150.42 ± 14.45 |
| VC |
-0.886 ± 0.020 |
-0.414 ± 0.039 |
-0.209 ± 0.206 |
-12.05 ± 2.81 |
205.01 ± 2.49 |
| MX1 |
-0.739 ± 0.289 |
-0.243 ± 0.292 |
0.628 ± 0.528 |
38.90 ± 26.37 |
198.23 ± 21.51 |
| MX2 |
-0.694 ± 0.059 |
-0.705 ± 0.058 |
-0.149 ± 0.148 |
-8.58 ± 3.83 |
225.46 ± 4.79 |
| MX3 |
-0.721 ± 0.051 |
-0.689 ± 0.053 |
-0.078 ± 0.078 |
-4.49 ± 4.01 |
223.69 ± 4.22 |
| RH08 |
-0.363 ± 0.014 |
0.136 ± 0.019 |
0.922 ± 0.455 |
67.19 ± 0.83 |
159.44 ± 2.88 |
| RH09 |
-0.683 ± 0.048 |
-0.545 ± 0.055 |
0.486 ± 0.444 |
29.08 ± 3.97 |
218.61 ± 4.25 |
| RH10 |
-0.683 ± 0.050 |
-0.565 ± 0.057 |
0.464 ± 0.427 |
27.63 ± 4.06 |
219.61 ± 4.43 |
| Average |
-0.641 |
-0.353 |
0.372 |
25.416 |
200.059 |
| Median |
-0.683 |
-0.414 |
0.486 |
29.080 |
218.607 |
| Deviation |
0.185 |
0.355 |
0.462 |
31.663 |
29.451 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
16.6 ± 6.5 |
142.6 ± 1.1 |
2.85 ± 0.45 |
| VC |
86.7 ± 5.8 |
509.3 ± 3.5 |
2.85 ± 0.45 |
| MX1 |
42.3 ± 5.5 |
395.7 ± 2.8 |
2.85 ± 0.45 |
| MX2 |
87.9 ± 6.5 |
441.5 ± 3.5 |
2.85 ± 0.45 |
| MX3 |
87.8 ± 6.4 |
452.3 ± 3.5 |
2.85 ± 0.45 |
| RH08 |
14.6 ± 5.9 |
152.3 ± 1.2 |
2.85 ± 0.45 |
| RH09 |
54.1 ± 6.4 |
404.0 ± 3.2 |
2.85 ± 0.45 |
| RH10 |
55.6 ± 6.4 |
406.5 ± 17.3 |
2.85 ± 0.45 |
| Average |
55.7 |
363.0 |
2.85 |
| Median |
55.6 |
406.5 |
2.85 |
| Deviation |
30.3 |
137.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
7.5 ± 2.2 |
25.4 ± 2.2 |
26.3 ± 2.7 |
41.4 ± 1.8 |
0.30 ± 0.09 |
0.18 ± 0.06 |
| VC |
156.8 ± 2.1 |
1.3 ± 0.1 |
1.6 ± 0.2 |
48.6 ± 1.7 |
122.87 ± 8.35 |
3.23 ± 0.13 |
| MX1 |
97.4 ± 2.2 |
17.9 ± 1.3 |
20.3 ± 2.1 |
45.1 ± 1.5 |
5.46 ± 0.45 |
2.16 ± 0.12 |
| MX2 |
145.6 ± 1.8 |
0.8 ± 0.1 |
1.0 ± 0.1 |
48.6 ± 1.7 |
178.83 ± 12.14 |
3.00 ± 0.11 |
| MX3 |
146.0 ± 1.8 |
0.9 ± 0.1 |
1.0 ± 0.1 |
48.6 ± 1.7 |
170.48 ± 11.63 |
3.01 ± 0.11 |
| RH8 |
11.8 ± 2.1 |
25.8 ± 2.3 |
26.6 ± 2.7 |
41.1 ± 1.8 |
0.46 ± 0.10 |
0.29 ± 0.06 |
| RH9 |
112.7 ± 1.8 |
13.8 ± 0.9 |
16.1 ± 1.6 |
46.6 ± 1.6 |
8.22 ± 0.62 |
2.42 ± 0.11 |
| RH10 |
114.6 ± 1.8 |
13.2 ± 0.9 |
15.5 ± 1.6 |
46.7 ± 1.6 |
8.71 ± 0.66 |
2.46 ± 0.11 |
| Average |
99.0 |
12.4 |
13.5 |
45.8 |
61.9 |
2.1 |
| Median |
114.6 |
13.8 |
16.1 |
46.7 |
8.7 |
2.5 |
| Deviation |
58.7 |
10.5 |
11.0 |
3.1 |
80.8 |
1.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
3.1 ± 3.9 |
51.0 ± 2.2 |
70.4 ± 5.0 |
77.1 ± 4.1 |
0.06 ± 0.08 |
0.04 ± 0.05 |
| VC |
58.3 ± 6.8 |
2.5 ± 0.1 |
4.2 ± 0.3 |
92.5 ± 2.8 |
23.16 ± 3.10 |
0.63 ± 0.07 |
| MX1 |
35.7 ± 6.7 |
35.5 ± 0.9 |
54.3 ± 3.8 |
85.4 ± 3.1 |
1.01 ± 0.21 |
0.42 ± 0.07 |
| MX2 |
53.2 ± 7.1 |
1.6 ± 0.0 |
2.7 ± 0.2 |
92.5 ± 2.8 |
33.14 ± 4.93 |
0.58 ± 0.08 |
| MX3 |
53.4 ± 7.3 |
1.7 ± 0.0 |
2.8 ± 0.2 |
92.5 ± 2.8 |
31.59 ± 4.79 |
0.58 ± 0.08 |
| RH8 |
4.5 ± 4.3 |
52.0 ± 2.4 |
71.1 ± 5.0 |
76.4 ± 4.2 |
0.09 ± 0.09 |
0.06 ± 0.05 |
| RH9 |
40.8 ± 7.6 |
27.2 ± 0.6 |
43.1 ± 3.0 |
88.4 ± 2.9 |
1.50 ± 0.30 |
0.46 ± 0.08 |
| RH10 |
41.5 ± 7.6 |
26.1 ± 0.6 |
41.5 ± 2.9 |
88.8 ± 2.9 |
1.59 ± 0.31 |
0.47 ± 0.08 |
| Average |
36.3 |
24.7 |
36.3 |
86.7 |
11.5 |
0.4 |
| Median |
41.5 |
27.2 |
43.1 |
88.8 |
1.6 |
0.5 |
| Deviation |
21.5 |
21.1 |
29.4 |
6.6 |
15.0 |
0.2 |
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)
| 
