Database: Ace Shock Analysis
Event ID: 20140581607
Observation time: 02/27/2014 58.67199 1607 [UT]
|
|
General
Information (About, Top)
| Year |
2014 |
| Fractional day of year |
58.671991 |
| Arrival time of shock [seconds of day] |
58060.0 ± 80.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
228.977 |
| Y GSE location of spacecraft [Re] |
-39.744 |
| Z GSE location of spacecraft [Re] |
-15.955 |
| Upstream plasma points selected for analysis |
0009 |
| Upstream field points selected for analysis |
0009 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0004 |
| Minimum chisq/dof for RH8,RH9,RH10 |
12.88, 42.02, 51.29 |
Event added to database
|
Fri Oct 10 15:12:23 2014
|
Event last processed
|
Tue Oct 14 16:27:36 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
41.836 ± 0.375
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-350.3 ± 1.8 |
-420.3 ± 2.5 |
| Vy GSE [km/s] |
-36.5 ± 0.9 |
-76.6 ± 3.4 |
| Vz GSE [km/s] |
10.9 ± 0.6 |
3.0 ± 7.4 |
| Wi [km/s] |
21.0 ± 0.7 |
43.0 ± 1.2 |
| We [km/s] |
662.8 ± 21.3 |
1360.7 ± 39.1 |
| Ni [n/cc] |
15.5 ± 0.8 |
35.0 ± 1.3 |
| Bx GSE [nT] |
1.3 ± 0.6 |
3.6 ± 0.8 |
| By GSE [nT] |
-3.0 ± 0.5 |
-10.6 ± 1.0 |
| Bz GSE [nT] |
-3.8 ± 0.4 |
-4.1 ± 2.0 |
Plasma Beta
|
0.555 ± 0.547
|
0.968 ± 0.970
|
Sound Speed [km/s]
|
27.06 ± 0.87
|
55.55 ± 1.60
|
Alfven Speed [km/s]
|
28.21 ± 1.56
|
44.58 ± 4.78
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.925 ± 0.483 |
0.001 ± 0.788 |
0.380 ± 0.361 |
22.36 ± 72.81 |
179.94 ± 48.83 |
| VC |
-0.864 ± 0.019 |
-0.495 ± 0.032 |
-0.096 ± 0.096 |
-5.52 ± 4.35 |
209.81 ± 2.11 |
| MX1 |
-0.945 ± 0.052 |
-0.256 ± 0.141 |
0.205 ± 0.202 |
11.84 ± 10.27 |
195.14 ± 8.55 |
| MX2 |
-0.957 ± 0.030 |
-0.289 ± 0.098 |
-0.024 ± 0.024 |
-1.38 ± 3.00 |
196.78 ± 5.87 |
| MX3 |
-0.951 ± 0.029 |
-0.291 ± 0.092 |
-0.102 ± 0.102 |
-5.88 ± 5.09 |
197.00 ± 5.54 |
| RH08 |
-0.917 ± 0.006 |
-0.400 ± 0.013 |
-0.006 ± 0.006 |
-0.32 ± 0.81 |
203.57 ± 0.80 |
| RH09 |
-0.630 ± 0.055 |
-0.315 ± 0.067 |
0.709 ± 0.556 |
45.19 ± 4.03 |
206.57 ± 5.72 |
| RH10 |
-0.712 ± 0.049 |
0.069 ± 0.071 |
-0.698 ± 0.553 |
-44.29 ± 4.03 |
174.48 ± 5.69 |
| Average |
-0.863 |
-0.247 |
0.046 |
2.751 |
195.413 |
| Median |
-0.917 |
-0.289 |
-0.006 |
-0.320 |
196.997 |
| Deviation |
0.124 |
0.191 |
0.411 |
25.777 |
12.422 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
58.6 ± 4.8 |
436.6 ± 1.6 |
2.25 ± 0.12 |
| VC |
81.7 ± 4.6 |
466.1 ± 1.4 |
2.25 ± 0.12 |
| MX1 |
75.9 ± 4.5 |
474.4 ± 1.5 |
2.25 ± 0.12 |
| MX2 |
86.9 ± 5.2 |
488.2 ± 1.4 |
2.25 ± 0.12 |
| MX3 |
89.5 ± 5.5 |
485.6 ± 1.3 |
2.25 ± 0.12 |
| RH08 |
89.6 ± 4.7 |
480.5 ± 1.4 |
2.25 ± 0.12 |
| RH09 |
59.2 ± 4.5 |
331.3 ± 1.8 |
2.25 ± 0.12 |
| RH10 |
71.8 ± 8.7 |
333.2 ± 7.3 |
2.25 ± 0.12 |
| Average |
76.7 |
437.0 |
2.25 |
| Median |
81.7 |
474.4 |
2.25 |
| Deviation |
12.6 |
66.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
108.6 ± 1.6 |
10.6 ± 0.4 |
14.7 ± 0.8 |
37.6 ± 1.5 |
10.28 ± 0.26 |
2.89 ± 0.08 |
| VC |
146.6 ± 1.3 |
2.8 ± 0.1 |
4.1 ± 0.2 |
39.0 ± 1.6 |
51.78 ± 1.54 |
3.76 ± 0.12 |
| MX1 |
131.9 ± 1.5 |
4.8 ± 0.2 |
6.9 ± 0.4 |
38.8 ± 1.5 |
27.56 ± 0.76 |
3.40 ± 0.10 |
| MX2 |
142.7 ± 1.5 |
1.1 ± 0.0 |
1.5 ± 0.1 |
39.1 ± 1.6 |
135.93 ± 3.86 |
3.65 ± 0.11 |
| MX3 |
142.9 ± 1.5 |
0.2 ± 0.0 |
0.2 ± 0.0 |
39.1 ± 1.6 |
894.38 ± 25.55 |
3.66 ± 0.11 |
| RH8 |
144.8 ± 1.4 |
0.1 ± 0.0 |
0.2 ± 0.0 |
39.1 ± 1.6 |
1011.76 ± 29.28 |
3.71 ± 0.11 |
| RH9 |
91.3 ± 1.0 |
10.4 ± 0.4 |
14.4 ± 0.8 |
37.7 ± 1.5 |
8.83 ± 0.24 |
2.42 ± 0.07 |
| RH10 |
93.7 ± 1.5 |
6.2 ± 0.2 |
8.8 ± 0.5 |
38.6 ± 1.5 |
15.23 ± 0.44 |
2.43 ± 0.07 |
| Average |
125.3 |
4.5 |
6.4 |
38.6 |
269.5 |
3.2 |
| Median |
142.7 |
4.8 |
6.9 |
39.0 |
51.8 |
3.7 |
| Deviation |
23.7 |
4.2 |
5.9 |
0.6 |
425.1 |
0.6 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
46.9 ± 4.1 |
18.7 ± 1.1 |
23.2 ± 2.5 |
68.9 ± 1.5 |
2.52 ± 0.35 |
0.68 ± 0.07 |
| VC |
65.5 ± 3.2 |
5.0 ± 0.3 |
6.5 ± 0.7 |
71.2 ± 1.7 |
13.07 ± 0.72 |
0.92 ± 0.04 |
| MX1 |
57.2 ± 3.0 |
8.5 ± 0.5 |
10.9 ± 1.2 |
70.8 ± 1.7 |
6.76 ± 0.63 |
0.81 ± 0.05 |
| MX2 |
63.9 ± 2.8 |
1.9 ± 0.1 |
2.4 ± 0.3 |
71.3 ± 1.7 |
34.40 ± 2.25 |
0.90 ± 0.04 |
| MX3 |
63.8 ± 2.9 |
0.3 ± 0.0 |
0.4 ± 0.0 |
71.3 ± 1.7 |
225.55 ± 13.25 |
0.89 ± 0.04 |
| RH8 |
64.6 ± 2.9 |
0.3 ± 0.0 |
0.3 ± 0.0 |
71.3 ± 1.7 |
254.90 ± 16.31 |
0.91 ± 0.04 |
| RH9 |
40.2 ± 5.2 |
18.3 ± 1.1 |
22.8 ± 2.4 |
69.0 ± 1.5 |
2.21 ± 0.41 |
0.58 ± 0.09 |
| RH10 |
41.1 ± 4.7 |
10.9 ± 0.6 |
13.9 ± 1.5 |
70.5 ± 1.7 |
3.76 ± 0.26 |
0.58 ± 0.06 |
| Average |
55.4 |
8.0 |
10.0 |
70.5 |
67.9 |
0.8 |
| Median |
63.8 |
8.5 |
10.9 |
71.2 |
13.1 |
0.9 |
| Deviation |
11.0 |
7.5 |
9.4 |
1.1 |
107.2 |
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)
| 
