Database: Ace Shock Analysis
Event ID: 20141091753
Observation time: 04/19/2014 109.74523 1753 [UT]
|
|
General
Information (About, Top)
| Year |
2014 |
| Fractional day of year |
109.745232 |
| Arrival time of shock [seconds of day] |
64388.0 ± 110.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
223.091 |
| Y GSE location of spacecraft [Re] |
16.681 |
| Z GSE location of spacecraft [Re] |
-10.995 |
| Upstream plasma points selected for analysis |
0011 |
| Upstream field points selected for analysis |
0011 |
| Downstream plasma points selected for analysis |
0013
|
| Downstream field points selected for analysis |
0013 |
| Minimum chisq/dof for RH8,RH9,RH10 |
7.51, 9.79, 9.97 |
Event added to database
|
Fri Oct 10 15:15:49 2014
|
Event last processed
|
Tue Oct 14 16:33:05 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
42.492 ± 1.114
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-475.3 ± 1.3 |
-501.7 ± 3.6 |
| Vy GSE [km/s] |
-11.1 ± 1.2 |
-27.0 ± 1.8 |
| Vz GSE [km/s] |
-3.3 ± 0.8 |
-14.3 ± 0.5 |
| Wi [km/s] |
16.2 ± 1.2 |
24.1 ± 1.2 |
| We [km/s] |
512.6 ± 36.5 |
761.6 ± 37.1 |
| Ni [n/cc] |
5.8 ± 0.4 |
8.7 ± 0.5 |
| Bx GSE [nT] |
-3.6 ± 0.2 |
-2.8 ± 0.6 |
| By GSE [nT] |
1.9 ± 0.3 |
1.0 ± 0.9 |
| Bz GSE [nT] |
3.7 ± 0.2 |
8.1 ± 0.4 |
Plasma Beta
|
0.106 ± 0.105
|
0.140 ± 0.142
|
Sound Speed [km/s]
|
20.93 ± 1.49
|
31.09 ± 1.52
|
Alfven Speed [km/s]
|
49.91 ± 1.46
|
64.55 ± 2.24
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.851 ± 0.056 |
0.477 ± 0.081 |
0.221 ± 0.217 |
12.76 ± 10.32 |
150.73 ± 5.30 |
| VC |
-0.804 ± 0.045 |
-0.490 ± 0.072 |
-0.336 ± 0.323 |
-19.65 ± 1.98 |
211.36 ± 5.08 |
| MX1 |
-0.978 ± 0.025 |
-0.156 ± 0.120 |
0.139 ± 0.138 |
8.01 ± 6.83 |
189.06 ± 7.02 |
| MX2 |
-0.904 ± 0.035 |
-0.425 ± 0.075 |
0.052 ± 0.052 |
2.96 ± 2.60 |
205.19 ± 4.74 |
| MX3 |
-0.808 ± 0.070 |
-0.589 ± 0.096 |
-0.001 ± 0.001 |
-0.03 ± 2.75 |
216.06 ± 6.82 |
| RH08 |
-0.944 ± 0.003 |
-0.280 ± 0.010 |
0.173 ± 0.171 |
9.97 ± 0.38 |
196.55 ± 0.58 |
| RH09 |
-0.935 ± 0.024 |
-0.296 ± 0.070 |
0.196 ± 0.193 |
11.28 ± 3.10 |
197.55 ± 4.29 |
| RH10 |
-0.942 ± 0.023 |
-0.280 ± 0.069 |
0.184 ± 0.182 |
10.62 ± 3.37 |
196.55 ± 4.21 |
| Average |
-0.896 |
-0.255 |
0.079 |
4.491 |
195.381 |
| Median |
-0.904 |
-0.280 |
0.173 |
9.973 |
197.549 |
| Deviation |
0.066 |
0.326 |
0.184 |
10.692 |
20.074 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
29.7 ± 3.6 |
434.8 ± 0.9 |
1.51 ± 0.14 |
| VC |
82.6 ± 1.1 |
484.9 ± 1.8 |
1.51 ± 0.14 |
| MX1 |
47.4 ± 1.2 |
544.9 ± 1.5 |
1.51 ± 0.14 |
| MX2 |
61.6 ± 0.9 |
522.5 ± 1.7 |
1.51 ± 0.14 |
| MX3 |
71.2 ± 1.1 |
481.0 ± 1.7 |
1.51 ± 0.14 |
| RH08 |
50.6 ± 0.9 |
532.5 ± 1.5 |
1.51 ± 0.14 |
| RH09 |
50.4 ± 0.9 |
527.5 ± 1.5 |
1.51 ± 0.14 |
| RH10 |
50.2 ± 0.9 |
530.9 ± 18.1 |
1.51 ± 0.14 |
| Average |
55.5 |
507.4 |
1.51 |
| Median |
50.6 |
527.5 |
1.51 |
| Deviation |
16.2 |
37.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
36.5 ± 1.3 |
17.7 ± 1.2 |
43.4 ± 1.3 |
51.1 ± 1.5 |
2.07 ± 0.14 |
0.71 ± 0.02 |
| VC |
96.1 ± 1.3 |
2.5 ± 0.2 |
6.4 ± 0.2 |
54.1 ± 1.7 |
39.04 ± 2.45 |
1.78 ± 0.05 |
| MX1 |
78.9 ± 1.2 |
13.5 ± 0.9 |
33.8 ± 1.0 |
52.4 ± 1.6 |
5.87 ± 0.38 |
1.51 ± 0.04 |
| MX2 |
88.5 ± 1.2 |
9.3 ± 0.6 |
23.8 ± 0.7 |
53.3 ± 1.6 |
9.52 ± 0.60 |
1.66 ± 0.05 |
| MX3 |
90.3 ± 1.2 |
6.3 ± 0.4 |
16.1 ± 0.5 |
53.8 ± 1.7 |
14.47 ± 0.91 |
1.68 ± 0.05 |
| RH8 |
81.2 ± 1.2 |
12.6 ± 0.8 |
31.7 ± 0.9 |
52.6 ± 1.6 |
6.48 ± 0.41 |
1.54 ± 0.04 |
| RH9 |
80.4 ± 1.2 |
12.7 ± 0.8 |
31.8 ± 0.9 |
52.6 ± 1.6 |
6.38 ± 0.41 |
1.53 ± 0.04 |
| RH10 |
80.7 ± 1.2 |
12.7 ± 0.8 |
32.0 ± 0.9 |
52.6 ± 1.6 |
6.37 ± 0.41 |
1.53 ± 0.04 |
| Average |
79.1 |
10.9 |
27.4 |
52.8 |
11.3 |
1.5 |
| Median |
81.2 |
12.7 |
31.8 |
52.6 |
6.5 |
1.5 |
| Deviation |
18.2 |
4.7 |
11.6 |
0.9 |
11.8 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
24.1 ± 3.4 |
26.1 ± 1.2 |
56.1 ± 1.9 |
66.7 ± 2.2 |
0.92 ± 0.13 |
0.36 ± 0.06 |
| VC |
63.4 ± 2.8 |
3.6 ± 0.2 |
8.3 ± 0.3 |
71.6 ± 2.3 |
17.70 ± 1.15 |
0.89 ± 0.06 |
| MX1 |
52.1 ± 3.5 |
19.7 ± 0.9 |
43.7 ± 1.5 |
68.9 ± 2.3 |
2.65 ± 0.20 |
0.76 ± 0.07 |
| MX2 |
58.4 ± 3.1 |
13.6 ± 0.6 |
30.7 ± 1.1 |
70.4 ± 2.3 |
4.31 ± 0.30 |
0.83 ± 0.06 |
| MX3 |
59.5 ± 2.8 |
9.1 ± 0.4 |
20.8 ± 0.7 |
71.1 ± 2.3 |
6.55 ± 0.44 |
0.84 ± 0.06 |
| RH8 |
53.7 ± 3.3 |
18.4 ± 0.8 |
40.9 ± 1.4 |
69.3 ± 2.3 |
2.93 ± 0.22 |
0.78 ± 0.07 |
| RH9 |
53.2 ± 3.3 |
18.5 ± 0.8 |
41.2 ± 1.4 |
69.2 ± 2.3 |
2.88 ± 0.21 |
0.77 ± 0.06 |
| RH10 |
53.3 ± 3.3 |
18.6 ± 0.8 |
41.4 ± 1.4 |
69.2 ± 2.3 |
2.88 ± 0.21 |
0.77 ± 0.07 |
| Average |
52.2 |
15.9 |
35.4 |
69.5 |
5.1 |
0.7 |
| Median |
53.7 |
18.5 |
41.2 |
69.3 |
2.9 |
0.8 |
| Deviation |
12.0 |
7.0 |
15.0 |
1.5 |
5.3 |
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)
| 
