Database: Ace Shock Analysis
Event ID: 20140091931
Observation time: 01/09/2014 9.81325 1931 [UT]
|
|
General
Information (About, Top)
| Year |
2014 |
| Fractional day of year |
9.813251 |
| Arrival time of shock [seconds of day] |
70264.9 ± 40.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
241.975 |
| Y GSE location of spacecraft [Re] |
2.934 |
| Z GSE location of spacecraft [Re] |
19.101 |
| Upstream plasma points selected for analysis |
0004 |
| Upstream field points selected for analysis |
0437 |
| Downstream plasma points selected for analysis |
0006
|
| Downstream field points selected for analysis |
0354 |
| Minimum chisq/dof for RH8,RH9,RH10 |
15.38, 19.19, 27.93 |
Event added to database
|
Fri Oct 10 13:57:34 2014
|
Event last processed
|
Tue Oct 14 16:20:30 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
-287.507 ± 93.003
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-388.6 ± 6.3 |
-485.6 ± 13.6 |
| Vy GSE [km/s] |
40.3 ± 4.6 |
1.7 ± 5.5 |
| Vz GSE [km/s] |
-15.1 ± 14.8 |
46.1 ± 13.5 |
| Wi [km/s] |
37.6 ± 0.6 |
55.0 ± 3.2 |
| We [km/s] |
1188.9 ± 19.3 |
1738.1 ± 101.8 |
| Ni [n/cc] |
2.9 ± 0.2 |
5.8 ± 1.1 |
| Bx GSE [nT] |
-4.5 ± 0.3 |
-6.2 ± 0.9 |
| By GSE [nT] |
6.3 ± 0.9 |
11.4 ± 0.2 |
| Bz GSE [nT] |
-0.0 ± 0.8 |
0.8 ± 0.7 |
Plasma Beta
|
0.143 ± 0.144
|
0.215 ± 0.223
|
Sound Speed [km/s]
|
48.54 ± 0.79
|
70.96 ± 4.16
|
Alfven Speed [km/s]
|
99.95 ± 8.10
|
118.89 ± 7.15
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.970 ± 0.146 |
-0.170 ± 0.442 |
-0.172 ± 0.170 |
-9.90 ± 41.82 |
189.96 ± 26.10 |
| VC |
-0.804 ± 0.068 |
-0.320 ± 0.038 |
0.502 ± 0.455 |
30.13 ± 8.20 |
201.69 ± 1.98 |
| MX1 |
-0.798 ± 0.094 |
-0.338 ± 0.158 |
0.499 ± 0.453 |
29.96 ± 8.45 |
202.95 ± 11.17 |
| MX2 |
-0.800 ± 0.092 |
-0.336 ± 0.153 |
0.497 ± 0.451 |
29.80 ± 8.43 |
202.75 ± 10.76 |
| MX3 |
-0.803 ± 0.091 |
-0.333 ± 0.146 |
0.494 ± 0.449 |
29.58 ± 8.71 |
202.53 ± 10.24 |
| RH08 |
0.148 ± 0.030 |
-0.018 ± 0.016 |
0.989 ± 0.212 |
81.43 ± 1.77 |
352.98 ± 6.03 |
| RH09 |
-0.100 ± 0.053 |
-0.110 ± 0.051 |
0.989 ± 0.212 |
81.43 ± 2.47 |
227.63 ± 23.22 |
| RH10 |
0.146 ± 0.045 |
-0.031 ± 0.068 |
0.989 ± 0.212 |
81.43 ± 2.50 |
347.97 ± 26.54 |
| Average |
-0.498 |
-0.207 |
0.598 |
44.232 |
241.058 |
| Median |
-0.798 |
-0.170 |
0.502 |
30.127 |
202.950 |
| Deviation |
0.475 |
0.141 |
0.395 |
33.606 |
68.349 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
64.6 ± 3.0 |
585.7 ± 11.3 |
1.82 ± 0.11 |
| VC |
77.6 ± 5.6 |
550.8 ± 10.4 |
1.82 ± 0.11 |
| MX1 |
78.7 ± 5.6 |
547.9 ± 10.4 |
1.82 ± 0.11 |
| MX2 |
78.5 ± 5.6 |
549.1 ± 10.4 |
1.82 ± 0.11 |
| MX3 |
78.3 ± 5.6 |
550.6 ± 10.4 |
1.82 ± 0.11 |
| RH08 |
84.4 ± 5.6 |
20.0 ± 4.1 |
1.82 ± 0.11 |
| RH09 |
88.5 ± 6.2 |
172.5 ± 4.3 |
1.82 ± 0.11 |
| RH10 |
83.8 ± 5.6 |
21.9 ± 19.6 |
1.82 ± 0.11 |
| Average |
79.3 |
374.8 |
1.82 |
| Median |
78.7 |
549.1 |
1.82 |
| Deviation |
7.1 |
255.8 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
212.9 ± 4.3 |
19.0 ± 0.5 |
42.9 ± 3.5 |
109.5 ± 7.6 |
11.22 ± 0.50 |
1.95 ± 0.16 |
| VC |
259.0 ± 13.7 |
9.4 ± 0.3 |
21.4 ± 1.7 |
110.7 ± 7.6 |
27.66 ± 2.09 |
2.35 ± 0.26 |
| MX1 |
259.0 ± 13.7 |
8.6 ± 0.2 |
19.6 ± 1.6 |
110.8 ± 7.6 |
30.25 ± 2.29 |
2.35 ± 0.26 |
| MX2 |
259.2 ± 13.7 |
8.7 ± 0.2 |
19.9 ± 1.6 |
110.8 ± 7.6 |
29.78 ± 2.25 |
2.35 ± 0.26 |
| MX3 |
259.3 ± 13.7 |
8.9 ± 0.2 |
20.3 ± 1.6 |
110.8 ± 7.6 |
29.25 ± 2.20 |
2.35 ± 0.26 |
| RH8 |
93.1 ± 13.8 |
4.3 ± 0.1 |
9.8 ± 0.8 |
111.1 ± 7.6 |
21.79 ± 3.69 |
0.85 ± 0.17 |
| RH9 |
152.8 ± 15.7 |
1.2 ± 0.0 |
2.7 ± 0.2 |
111.1 ± 7.6 |
130.32 ± 16.23 |
1.39 ± 0.22 |
| RH10 |
94.7 ± 13.9 |
4.7 ± 0.1 |
10.7 ± 0.9 |
111.0 ± 7.6 |
20.28 ± 3.40 |
0.86 ± 0.17 |
| Average |
198.8 |
8.1 |
18.4 |
110.7 |
37.6 |
1.8 |
| Median |
259.0 |
8.7 |
19.9 |
110.8 |
29.2 |
2.4 |
| Deviation |
74.5 |
5.3 |
11.9 |
0.5 |
38.0 |
0.7 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
122.7 ± 15.3 |
26.6 ± 1.4 |
51.0 ± 3.1 |
135.9 ± 7.4 |
4.64 ± 0.76 |
0.91 ± 0.16 |
| VC |
138.0 ± 10.8 |
13.1 ± 0.7 |
25.5 ± 1.5 |
137.9 ± 7.5 |
10.56 ± 0.96 |
1.00 ± 0.10 |
| MX1 |
138.0 ± 10.8 |
12.0 ± 0.6 |
23.3 ± 1.4 |
138.0 ± 7.5 |
11.55 ± 1.05 |
1.00 ± 0.10 |
| MX2 |
138.2 ± 10.8 |
12.2 ± 0.6 |
23.7 ± 1.4 |
138.0 ± 7.5 |
11.38 ± 1.04 |
1.00 ± 0.10 |
| MX3 |
138.3 ± 10.8 |
12.4 ± 0.7 |
24.1 ± 1.5 |
137.9 ± 7.5 |
11.18 ± 1.02 |
1.01 ± 0.10 |
| RH8 |
46.3 ± 14.4 |
6.0 ± 0.3 |
11.7 ± 0.7 |
138.4 ± 7.5 |
7.66 ± 2.14 |
0.33 ± 0.09 |
| RH9 |
78.4 ± 12.5 |
1.6 ± 0.1 |
3.2 ± 0.2 |
138.5 ± 7.5 |
47.57 ± 5.55 |
0.56 ± 0.07 |
| RH10 |
47.2 ± 14.4 |
6.5 ± 0.3 |
12.8 ± 0.8 |
138.3 ± 7.5 |
7.15 ± 1.94 |
0.34 ± 0.09 |
| Average |
105.9 |
11.3 |
21.9 |
137.9 |
14.0 |
0.8 |
| Median |
138.0 |
12.2 |
23.7 |
138.0 |
11.2 |
1.0 |
| Deviation |
41.7 |
7.4 |
14.2 |
0.8 |
13.8 |
0.3 |
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)
| 
