Database: Ace Shock Analysis
Event ID: 20123310436
Observation time: 11/26/2012 331.19209 0436 [UT]
|
|
General
Information (About, Top)
| Year |
2012 |
| Fractional day of year |
331.192089 |
| Arrival time of shock [seconds of day] |
16596.5 ± 10.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
222.063 |
| Y GSE location of spacecraft [Re] |
33.382 |
| Z GSE location of spacecraft [Re] |
13.363 |
| Upstream plasma points selected for analysis |
0003 |
| Upstream field points selected for analysis |
0156 |
| Downstream plasma points selected for analysis |
0001
|
| Downstream field points selected for analysis |
0132 |
| Minimum chisq/dof for RH8,RH9,RH10 |
-151.77, -126.73, -109.52 |
Event added to database
|
Tue Oct 14 16:58:46 2014
|
Event last processed
|
Tue Oct 14 17:06:18 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
-25.688 ± 19.405
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-436.8 ± 7.4 |
-517.9 ± -517.9 |
| Vy GSE [km/s] |
39.4 ± 4.3 |
63.1 ± 63.1 |
| Vz GSE [km/s] |
-36.5 ± 20.6 |
-28.6 ± -28.6 |
| Wi [km/s] |
38.7 ± 3.3 |
55.6 ± 55.6 |
| We [km/s] |
1223.8 ± 104.9 |
1757.0 ± 1757.0 |
| Ni [n/cc] |
2.5 ± 0.1 |
4.5 ± 4.5 |
| Bx GSE [nT] |
2.0 ± 0.7 |
1.2 ± 1.2 |
| By GSE [nT] |
-0.3 ± 0.7 |
4.1 ± 4.1 |
| Bz GSE [nT] |
-3.0 ± 0.6 |
-3.4 ± -3.4 |
Plasma Beta
|
0.586 ± 0.577
|
0.972 ± 0.972
|
Sound Speed [km/s]
|
49.96 ± 4.28
|
71.73 ± 71.73
|
Alfven Speed [km/s]
|
50.69 ± 2.22
|
56.35 ± 56.35
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.535 ± 0.188 |
-0.046 ± 0.037 |
0.844 ± 0.539 |
57.55 ± 12.83 |
184.89 ± 3.58 |
| VC |
-0.955 ± 0.026 |
0.277 ± 0.026 |
0.105 ± 0.105 |
6.02 ± 13.94 |
163.81 ± 1.48 |
| MX1 |
-0.836 ± 0.464 |
0.485 ± 0.586 |
0.256 ± 0.250 |
14.81 ± 86.91 |
149.88 ± 37.87 |
| MX2 |
-0.922 ± 0.065 |
-0.112 ± 0.101 |
0.369 ± 0.352 |
21.68 ± 9.91 |
186.95 ± 6.25 |
| MX3 |
-0.977 ± 0.048 |
-0.140 ± 0.134 |
0.164 ± 0.162 |
9.42 ± 15.40 |
188.15 ± 7.86 |
| RH08 |
-0.038 ± 0.071 |
0.975 ± 0.015 |
-0.218 ± 0.214 |
-12.58 ± 3.96 |
92.26 ± 4.17 |
| RH09 |
-0.038 ± 0.034 |
0.975 ± 0.008 |
-0.218 ± 0.214 |
-12.58 ± 2.00 |
92.26 ± 2.00 |
| RH10 |
-0.038 ± 0.034 |
0.975 ± 0.008 |
-0.218 ± 0.214 |
-12.58 ± 2.00 |
92.26 ± 2.00 |
| Average |
-0.543 |
0.424 |
0.135 |
8.966 |
143.806 |
| Median |
-0.535 |
0.485 |
0.164 |
9.416 |
163.807 |
| Deviation |
0.439 |
0.502 |
0.368 |
23.781 |
44.601 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
16.1 ± 6.7 |
311.6 ± 11.4 |
1.78 ± 0.08 |
| VC |
51.0 ± 13.8 |
612.6 ± 10.5 |
1.78 ± 0.08 |
| MX1 |
44.9 ± 14.2 |
558.6 ± 7.6 |
1.78 ± 0.08 |
| MX2 |
37.9 ± 12.6 |
559.3 ± 5.0 |
1.78 ± 0.08 |
| MX3 |
49.5 ± 12.9 |
589.3 ± 8.0 |
1.78 ± 0.08 |
| RH08 |
86.1 ± 12.1 |
115.2 ± 9.4 |
1.78 ± 0.08 |
| RH09 |
86.1 ± 12.1 |
115.2 ± 9.4 |
1.78 ± 0.08 |
| RH10 |
86.1 ± 12.1 |
115.2 ± 13.3 |
1.78 ± 0.08 |
| Average |
57.2 |
372.1 |
1.78 |
| Median |
51.0 |
558.6 |
1.78 |
| Deviation |
26.3 |
231.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
110.6 ± 13.8 |
42.6 ± 2.5 |
48.7 ± 2.1 |
57.1 ± 3.0 |
2.61 ± 0.42 |
1.95 ± 0.31 |
| VC |
188.4 ± 6.2 |
23.7 ± 1.4 |
31.9 ± 1.4 |
67.2 ± 3.7 |
7.96 ± 0.31 |
2.81 ± 0.10 |
| MX1 |
183.5 ± 3.6 |
27.2 ± 1.6 |
35.9 ± 1.6 |
65.8 ± 3.6 |
6.75 ± 0.27 |
2.79 ± 0.10 |
| MX2 |
174.3 ± 2.2 |
31.2 ± 1.8 |
40.0 ± 1.8 |
64.0 ± 3.5 |
5.60 ± 0.32 |
2.73 ± 0.15 |
| MX3 |
174.2 ± 3.4 |
24.6 ± 1.4 |
32.9 ± 1.4 |
66.8 ± 3.7 |
7.10 ± 0.31 |
2.61 ± 0.10 |
| RH8 |
52.1 ± 8.8 |
2.4 ± 0.1 |
3.4 ± 0.1 |
71.2 ± 3.9 |
21.73 ± 3.05 |
0.73 ± 0.10 |
| RH9 |
52.1 ± 8.8 |
2.4 ± 0.1 |
3.4 ± 0.1 |
71.2 ± 3.9 |
21.73 ± 3.05 |
0.73 ± 0.10 |
| RH10 |
52.1 ± 8.8 |
2.4 ± 0.1 |
3.4 ± 0.1 |
71.2 ± 3.9 |
21.73 ± 3.05 |
0.73 ± 0.10 |
| Average |
123.4 |
19.6 |
25.0 |
66.8 |
11.9 |
1.9 |
| Median |
174.2 |
24.6 |
32.9 |
67.2 |
8.0 |
2.6 |
| Deviation |
63.7 |
15.4 |
18.6 |
4.8 |
8.3 |
1.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
61.7 ± 61.7 |
51.7 ± 51.7 |
54.2 ± 54.2 |
75.2 ± 75.2 |
1.19 ± 1.19 |
0.82 ± 0.82 |
| VC |
103.5 ± 103.5 |
29.5 ± 29.5 |
35.5 ± 35.5 |
86.3 ± 86.3 |
3.52 ± 3.52 |
1.20 ± 1.20 |
| MX1 |
102.2 ± 102.2 |
33.8 ± 33.8 |
39.9 ± 39.9 |
84.7 ± 84.7 |
3.02 ± 3.02 |
1.21 ± 1.21 |
| MX2 |
99.2 ± 99.2 |
38.6 ± 38.6 |
44.5 ± 44.5 |
82.6 ± 82.6 |
2.57 ± 2.57 |
1.20 ± 1.20 |
| MX3 |
97.1 ± 97.1 |
30.5 ± 30.5 |
36.6 ± 36.6 |
86.0 ± 86.0 |
3.18 ± 3.18 |
1.13 ± 1.13 |
| RH8 |
27.6 ± 27.6 |
3.0 ± 3.0 |
3.8 ± 3.8 |
91.2 ± 91.2 |
9.25 ± 9.25 |
0.30 ± 0.30 |
| RH9 |
27.6 ± 27.6 |
3.0 ± 3.0 |
3.8 ± 3.8 |
91.2 ± 91.2 |
9.25 ± 9.25 |
0.30 ± 0.30 |
| RH10 |
27.6 ± 27.6 |
3.0 ± 3.0 |
3.8 ± 3.8 |
91.2 ± 91.2 |
9.25 ± 9.25 |
0.30 ± 0.30 |
| Average |
68.3 |
24.1 |
27.7 |
86.0 |
5.2 |
0.8 |
| Median |
97.1 |
30.5 |
36.6 |
86.3 |
3.5 |
1.1 |
| Deviation |
36.2 |
18.8 |
20.6 |
5.5 |
3.5 |
0.4 |
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)
| 
