Database: Ace Shock Analysis
Event ID: 20111870212
Observation time: 07/06/2011 187.09234 0212 [UT]
|
|
General
Information (About, Top)
| Year |
2011 |
| Fractional day of year |
187.092337 |
| Arrival time of shock [seconds of day] |
7977.9 ± 20.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
237.346 |
| Y GSE location of spacecraft [Re] |
42.064 |
| Z GSE location of spacecraft [Re] |
21.596 |
| Upstream plasma points selected for analysis |
0006 |
| Upstream field points selected for analysis |
0414 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0245 |
| Minimum chisq/dof for RH8,RH9,RH10 |
11.29, 19.12, 20.67 |
Event added to database
|
Tue Oct 14 15:51:32 2014
|
Event last processed
|
Tue Oct 14 16:43:54 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
61.450 ± 8.768
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-376.4 ± 2.2 |
-395.6 ± 1.0 |
| Vy GSE [km/s] |
21.3 ± 1.4 |
28.4 ± 1.4 |
| Vz GSE [km/s] |
4.9 ± 1.6 |
27.2 ± 2.5 |
| Wi [km/s] |
35.2 ± 0.6 |
41.0 ± 1.0 |
| We [km/s] |
1114.4 ± 19.2 |
1297.6 ± 31.2 |
| Ni [n/cc] |
4.5 ± 0.1 |
7.0 ± 0.5 |
| Bx GSE [nT] |
-1.0 ± 0.2 |
-1.5 ± 0.3 |
| By GSE [nT] |
-2.2 ± 0.1 |
-3.8 ± 0.3 |
| Bz GSE [nT] |
-0.0 ± 0.1 |
-0.7 ± 0.4 |
Plasma Beta
|
1.971 ± 1.973
|
1.458 ± 1.701
|
Sound Speed [km/s]
|
45.50 ± 0.78
|
52.97 ± 1.27
|
Alfven Speed [km/s]
|
25.14 ± 0.94
|
34.38 ± 3.08
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.792 ± 0.430 |
-0.271 ± 0.559 |
0.546 ± 0.484 |
33.12 ± 42.97 |
198.89 ± 39.25 |
| VC |
-0.634 ± 0.064 |
0.236 ± 0.055 |
0.736 ± 0.560 |
47.40 ± 5.09 |
159.56 ± 4.52 |
| MX1 |
-0.725 ± 0.074 |
-0.044 ± 0.123 |
0.688 ± 0.551 |
43.44 ± 6.13 |
183.45 ± 9.72 |
| MX2 |
-0.737 ± 0.084 |
-0.026 ± 0.109 |
0.676 ± 0.547 |
42.52 ± 7.12 |
182.05 ± 8.48 |
| MX3 |
-0.752 ± 0.104 |
-0.003 ± 0.092 |
0.660 ± 0.541 |
41.26 ± 9.02 |
180.26 ± 7.00 |
| RH08 |
-0.737 ± 0.015 |
0.418 ± 0.018 |
-0.531 ± 0.474 |
-32.05 ± 1.36 |
150.42 ± 1.35 |
| RH09 |
-0.965 ± 0.018 |
0.127 ± 0.070 |
0.229 ± 0.225 |
13.24 ± 3.97 |
172.48 ± 4.17 |
| RH10 |
-0.970 ± 0.017 |
0.128 ± 0.070 |
0.207 ± 0.204 |
11.93 ± 3.97 |
172.48 ± 4.16 |
| Average |
-0.789 |
0.071 |
0.401 |
25.108 |
174.948 |
| Median |
-0.737 |
0.127 |
0.660 |
41.263 |
180.260 |
| Deviation |
0.119 |
0.207 |
0.430 |
26.842 |
14.997 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
55.7 ± 3.5 |
368.2 ± 2.4 |
1.57 ± 0.15 |
| VC |
88.0 ± 3.4 |
332.6 ± 2.8 |
1.57 ± 0.15 |
| MX1 |
70.9 ± 3.4 |
357.1 ± 2.7 |
1.57 ± 0.15 |
| MX2 |
71.6 ± 3.4 |
362.3 ± 2.7 |
1.57 ± 0.15 |
| MX3 |
72.4 ± 3.5 |
368.8 ± 2.7 |
1.57 ± 0.15 |
| RH08 |
85.4 ± 3.0 |
299.0 ± 1.2 |
1.57 ± 0.15 |
| RH09 |
74.2 ± 3.7 |
438.6 ± 2.2 |
1.57 ± 0.15 |
| RH10 |
74.1 ± 3.7 |
438.9 ± 10.2 |
1.57 ± 0.15 |
| Average |
74.1 |
370.7 |
1.57 |
| Median |
74.1 |
368.2 |
1.57 |
| Deviation |
9.9 |
48.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
73.0 ± 1.5 |
12.8 ± 0.4 |
14.2 ± 0.5 |
50.4 ± 0.9 |
5.71 ± 0.26 |
1.45 ± 0.05 |
| VC |
85.2 ± 1.7 |
0.8 ± 0.0 |
0.9 ± 0.0 |
52.0 ± 1.0 |
112.56 ± 4.67 |
1.64 ± 0.06 |
| MX1 |
81.9 ± 1.6 |
7.3 ± 0.2 |
8.2 ± 0.3 |
51.5 ± 1.0 |
11.28 ± 0.48 |
1.59 ± 0.05 |
| MX2 |
82.3 ± 1.6 |
7.0 ± 0.2 |
8.0 ± 0.3 |
51.5 ± 1.0 |
11.73 ± 0.50 |
1.60 ± 0.05 |
| MX3 |
82.7 ± 1.7 |
6.7 ± 0.2 |
7.6 ± 0.3 |
51.6 ± 1.0 |
12.38 ± 0.54 |
1.61 ± 0.06 |
| RH8 |
15.2 ± 2.4 |
1.8 ± 0.1 |
2.0 ± 0.1 |
52.0 ± 1.0 |
8.67 ± 1.52 |
0.29 ± 0.05 |
| RH9 |
71.5 ± 2.1 |
6.0 ± 0.2 |
6.8 ± 0.3 |
51.6 ± 1.0 |
11.88 ± 0.64 |
1.39 ± 0.06 |
| RH10 |
70.1 ± 2.2 |
6.1 ± 0.2 |
6.9 ± 0.3 |
51.6 ± 1.0 |
11.58 ± 0.64 |
1.36 ± 0.06 |
| Average |
70.2 |
6.0 |
6.8 |
51.5 |
23.2 |
1.4 |
| Median |
81.9 |
6.7 |
7.6 |
51.6 |
11.7 |
1.6 |
| Deviation |
23.0 |
3.7 |
4.1 |
0.5 |
36.2 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
47.6 ± 1.4 |
16.8 ± 1.0 |
19.4 ± 1.7 |
60.9 ± 0.5 |
2.84 ± 0.22 |
0.78 ± 0.03 |
| VC |
55.0 ± 1.9 |
1.0 ± 0.1 |
1.2 ± 0.1 |
63.2 ± 0.7 |
55.66 ± 3.99 |
0.87 ± 0.04 |
| MX1 |
53.0 ± 1.7 |
9.5 ± 0.5 |
11.3 ± 1.0 |
62.5 ± 0.7 |
5.59 ± 0.41 |
0.85 ± 0.03 |
| MX2 |
53.3 ± 1.7 |
9.2 ± 0.5 |
10.9 ± 1.0 |
62.5 ± 0.7 |
5.82 ± 0.42 |
0.85 ± 0.03 |
| MX3 |
53.7 ± 1.7 |
8.8 ± 0.5 |
10.4 ± 0.9 |
62.6 ± 0.7 |
6.15 ± 0.44 |
0.86 ± 0.03 |
| RH8 |
9.9 ± 1.4 |
2.3 ± 0.1 |
2.7 ± 0.2 |
63.2 ± 0.7 |
4.32 ± 0.48 |
0.16 ± 0.02 |
| RH9 |
47.0 ± 1.0 |
7.9 ± 0.4 |
9.3 ± 0.8 |
62.7 ± 0.7 |
5.98 ± 0.35 |
0.75 ± 0.02 |
| RH10 |
46.0 ± 1.0 |
7.9 ± 0.4 |
9.4 ± 0.8 |
62.7 ± 0.7 |
5.82 ± 0.34 |
0.73 ± 0.02 |
| Average |
45.7 |
7.9 |
9.3 |
62.6 |
11.5 |
0.7 |
| Median |
53.0 |
8.8 |
10.4 |
62.7 |
5.8 |
0.8 |
| Deviation |
14.9 |
4.8 |
5.6 |
0.7 |
17.9 |
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)
| 
