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 |
0005 |
| Upstream field points selected for analysis |
0005 |
| Downstream plasma points selected for analysis |
0006
|
| Downstream field points selected for analysis |
0006 |
| Minimum chisq/dof for RH8,RH9,RH10 |
15.39, 40.97, 48.11 |
Event added to database
|
Fri Oct 10 10:24:50 2014
|
Event last processed
|
Wed Oct 15 11:14:55 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
42.501 ± 0.439
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-351.7 ± 0.7 |
-418.4 ± 4.8 |
| Vy GSE [km/s] |
-35.9 ± 0.8 |
-77.4 ± 3.3 |
| Vz GSE [km/s] |
10.8 ± 0.9 |
-0.8 ± 8.4 |
| Wi [km/s] |
20.5 ± 0.5 |
43.5 ± 1.5 |
| We [km/s] |
649.5 ± 17.3 |
1377.0 ± 46.3 |
| Ni [n/cc] |
15.5 ± 0.5 |
35.2 ± 1.5 |
| Bx GSE [nT] |
0.9 ± 0.2 |
3.2 ± 0.9 |
| By GSE [nT] |
-2.6 ± 0.3 |
-10.0 ± 1.2 |
| Bz GSE [nT] |
-4.2 ± 0.2 |
-4.0 ± 1.6 |
Plasma Beta
|
0.556 ± 0.547
|
1.140 ± 1.301
|
Sound Speed [km/s]
|
26.51 ± 0.71
|
56.22 ± 1.89
|
Alfven Speed [km/s]
|
27.56 ± 0.60
|
41.97 ± 5.55
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.962 ± 0.255 |
0.252 ± 0.788 |
0.107 ± 0.106 |
6.14 ± 83.00 |
165.31 ± 46.87 |
| VC |
-0.840 ± 0.026 |
-0.523 ± 0.037 |
-0.146 ± 0.145 |
-8.37 ± 5.50 |
211.92 ± 2.48 |
| MX1 |
-0.927 ± 0.062 |
-0.259 ± 0.129 |
0.271 ± 0.264 |
15.70 ± 11.02 |
195.58 ± 7.92 |
| MX2 |
-0.952 ± 0.025 |
-0.301 ± 0.077 |
-0.058 ± 0.058 |
-3.32 ± 3.74 |
197.53 ± 4.63 |
| MX3 |
-0.939 ± 0.028 |
-0.303 ± 0.069 |
-0.164 ± 0.162 |
-9.42 ± 6.06 |
197.86 ± 4.17 |
| RH08 |
-0.923 ± 0.006 |
-0.384 ± 0.015 |
-0.006 ± 0.006 |
-0.32 ± 1.04 |
202.56 ± 0.93 |
| RH09 |
-0.697 ± 0.050 |
-0.319 ± 0.068 |
0.642 ± 0.535 |
39.98 ± 3.98 |
204.57 ± 5.34 |
| RH10 |
-0.713 ± 0.049 |
-0.326 ± 0.067 |
0.620 ± 0.525 |
38.32 ± 4.04 |
204.57 ± 5.15 |
| Average |
-0.869 |
-0.270 |
0.158 |
9.838 |
197.487 |
| Median |
-0.923 |
-0.303 |
0.107 |
6.137 |
202.563 |
| Deviation |
0.108 |
0.226 |
0.323 |
19.808 |
14.008 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
67.0 ± 1.6 |
424.6 ± 1.7 |
2.30 ± 0.16 |
| VC |
76.1 ± 3.2 |
455.0 ± 1.3 |
2.30 ± 0.16 |
| MX1 |
75.0 ± 3.1 |
461.5 ± 1.9 |
2.30 ± 0.16 |
| MX2 |
88.1 ± 2.8 |
482.8 ± 1.5 |
2.30 ± 0.16 |
| MX3 |
82.8 ± 2.6 |
477.2 ± 1.3 |
2.30 ± 0.16 |
| RH08 |
87.9 ± 3.0 |
478.2 ± 1.5 |
2.30 ± 0.16 |
| RH09 |
60.1 ± 3.8 |
355.8 ± 2.4 |
2.30 ± 0.16 |
| RH10 |
61.4 ± 3.8 |
364.3 ± 12.5 |
2.30 ± 0.16 |
| Average |
74.8 |
437.4 |
2.30 |
| Median |
76.1 |
461.5 |
2.30 |
| Deviation |
11.2 |
51.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
94.3 ± 0.8 |
7.6 ± 0.1 |
10.8 ± 0.2 |
37.5 ± 0.7 |
12.38 ± 0.24 |
2.52 ± 0.05 |
| VC |
142.4 ± 0.5 |
4.6 ± 0.1 |
6.6 ± 0.1 |
38.0 ± 0.7 |
30.72 ± 0.51 |
3.75 ± 0.06 |
| MX1 |
123.2 ± 0.6 |
5.0 ± 0.1 |
7.2 ± 0.2 |
37.9 ± 0.7 |
24.65 ± 0.39 |
3.25 ± 0.05 |
| MX2 |
137.8 ± 0.6 |
0.6 ± 0.0 |
0.9 ± 0.0 |
38.2 ± 0.7 |
217.64 ± 3.68 |
3.60 ± 0.06 |
| MX3 |
137.8 ± 0.6 |
2.4 ± 0.0 |
3.4 ± 0.1 |
38.2 ± 0.7 |
57.68 ± 1.00 |
3.61 ± 0.06 |
| RH8 |
139.7 ± 0.6 |
0.7 ± 0.0 |
1.0 ± 0.0 |
38.2 ± 0.7 |
197.37 ± 3.24 |
3.65 ± 0.06 |
| RH9 |
92.3 ± 0.8 |
9.9 ± 0.2 |
13.8 ± 0.3 |
37.0 ± 0.6 |
9.36 ± 0.13 |
2.50 ± 0.03 |
| RH10 |
94.9 ± 0.8 |
9.4 ± 0.2 |
13.2 ± 0.3 |
37.1 ± 0.7 |
10.05 ± 0.14 |
2.56 ± 0.04 |
| Average |
120.3 |
5.0 |
7.1 |
37.8 |
70.0 |
3.2 |
| Median |
137.8 |
5.0 |
7.2 |
38.0 |
30.7 |
3.6 |
| Deviation |
22.6 |
3.7 |
5.1 |
0.5 |
86.5 |
0.6 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
41.9 ± 5.1 |
13.3 ± 1.0 |
16.4 ± 2.2 |
69.1 ± 2.0 |
3.18 ± 0.57 |
0.61 ± 0.09 |
| VC |
63.1 ± 4.7 |
8.1 ± 0.6 |
10.1 ± 1.3 |
69.9 ± 2.1 |
7.82 ± 0.78 |
0.90 ± 0.08 |
| MX1 |
53.8 ± 5.6 |
8.7 ± 0.7 |
10.9 ± 1.4 |
69.8 ± 2.0 |
6.22 ± 1.00 |
0.77 ± 0.10 |
| MX2 |
61.2 ± 4.7 |
1.1 ± 0.1 |
1.4 ± 0.2 |
70.3 ± 2.1 |
55.61 ± 6.47 |
0.87 ± 0.08 |
| MX3 |
60.8 ± 4.7 |
4.2 ± 0.3 |
5.2 ± 0.7 |
70.2 ± 2.1 |
14.63 ± 1.57 |
0.87 ± 0.08 |
| RH8 |
62.2 ± 4.8 |
1.2 ± 0.1 |
1.6 ± 0.2 |
70.3 ± 2.1 |
50.54 ± 5.93 |
0.89 ± 0.09 |
| RH9 |
40.1 ± 6.8 |
17.2 ± 1.3 |
20.9 ± 2.8 |
68.2 ± 1.9 |
2.37 ± 0.56 |
0.59 ± 0.12 |
| RH10 |
41.0 ± 6.7 |
16.5 ± 1.3 |
20.1 ± 2.7 |
68.4 ± 1.9 |
2.53 ± 0.58 |
0.60 ± 0.11 |
| Average |
53.0 |
8.8 |
10.8 |
69.5 |
17.9 |
0.8 |
| Median |
60.8 |
8.7 |
10.9 |
69.9 |
7.8 |
0.9 |
| Deviation |
10.3 |
6.4 |
7.8 |
0.9 |
22.1 |
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)
| 
