Database: Ace Shock Analysis
Event ID: 20111580909
Observation time: 06/07/2011 158.38129 0909 [UT]
|
|
General
Information (About, Top)
| Year |
2011 |
| Fractional day of year |
158.381291 |
| Arrival time of shock [seconds of day] |
32943.5 ± 20.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
226.721 |
| Y GSE location of spacecraft [Re] |
25.069 |
| Z GSE location of spacecraft [Re] |
17.874 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0351 |
| Downstream plasma points selected for analysis |
0006
|
| Downstream field points selected for analysis |
0336 |
| Minimum chisq/dof for RH8,RH9,RH10 |
12.97, 17.86, 19.16 |
Event added to database
|
Tue Oct 14 15:48:53 2014
|
Event last processed
|
Tue Oct 14 16:41:45 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
49.410 ± 0.690
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-390.7 ± 1.0 |
-408.4 ± 1.8 |
| Vy GSE [km/s] |
9.3 ± 1.8 |
-3.9 ± 2.7 |
| Vz GSE [km/s] |
-23.8 ± 4.5 |
-34.8 ± 5.0 |
| Wi [km/s] |
22.8 ± 0.6 |
22.8 ± 1.8 |
| We [km/s] |
720.2 ± 18.1 |
720.4 ± 56.8 |
| Ni [n/cc] |
2.9 ± 0.1 |
3.9 ± 0.2 |
| Bx GSE [nT] |
2.7 ± 0.1 |
3.6 ± 0.2 |
| By GSE [nT] |
-2.5 ± 0.0 |
-3.8 ± 0.2 |
| Bz GSE [nT] |
-0.9 ± 0.1 |
-1.0 ± 0.1 |
Plasma Beta
|
0.220 ± 0.219
|
0.146 ± 0.151
|
Sound Speed [km/s]
|
29.40 ± 0.74
|
29.41 ± 2.32
|
Alfven Speed [km/s]
|
48.65 ± 0.95
|
59.72 ± 1.30
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.859 ± 0.365 |
-0.508 ± 0.612 |
0.066 ± 0.066 |
3.80 ± 50.06 |
210.62 ± 40.78 |
| VC |
-0.724 ± 0.107 |
-0.535 ± 0.105 |
-0.435 ± 0.405 |
-25.78 ± 14.30 |
216.45 ± 6.56 |
| MX1 |
-0.770 ± 0.126 |
-0.485 ± 0.149 |
-0.414 ± 0.388 |
-24.45 ± 15.14 |
212.19 ± 10.18 |
| MX2 |
-0.769 ± 0.126 |
-0.483 ± 0.149 |
-0.418 ± 0.392 |
-24.74 ± 14.96 |
212.16 ± 10.21 |
| MX3 |
-0.766 ± 0.126 |
-0.480 ± 0.149 |
-0.428 ± 0.400 |
-25.36 ± 14.62 |
212.09 ± 10.28 |
| RH08 |
-0.815 ± 0.009 |
-0.562 ± 0.012 |
-0.140 ± 0.139 |
-8.03 ± 1.92 |
214.60 ± 0.79 |
| RH09 |
-0.792 ± 0.038 |
-0.588 ± 0.050 |
0.162 ± 0.161 |
9.32 ± 4.14 |
216.60 ± 3.61 |
| RH10 |
-0.794 ± 0.042 |
-0.589 ± 0.056 |
0.151 ± 0.150 |
8.68 ± 4.05 |
216.60 ± 4.01 |
| Average |
-0.786 |
-0.529 |
-0.182 |
-10.819 |
213.914 |
| Median |
-0.770 |
-0.508 |
-0.140 |
-8.028 |
214.596 |
| Deviation |
0.040 |
0.047 |
0.274 |
16.132 |
2.438 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
73.1 ± 0.6 |
415.1 ± 1.4 |
1.33 ± 0.07 |
| VC |
86.3 ± 1.4 |
389.0 ± 2.9 |
1.33 ± 0.07 |
| MX1 |
82.2 ± 1.4 |
406.6 ± 2.9 |
1.33 ± 0.07 |
| MX2 |
82.3 ± 1.4 |
406.2 ± 2.9 |
1.33 ± 0.07 |
| MX3 |
82.4 ± 1.4 |
405.4 ± 2.9 |
1.33 ± 0.07 |
| RH08 |
79.7 ± 0.9 |
413.2 ± 1.9 |
1.33 ± 0.07 |
| RH09 |
77.7 ± 0.5 |
382.7 ± 1.6 |
1.33 ± 0.07 |
| RH10 |
77.9 ± 0.5 |
384.1 ± 8.3 |
1.33 ± 0.07 |
| Average |
80.2 |
400.3 |
1.33 |
| Median |
82.2 |
406.2 |
1.33 |
| Deviation |
4.0 |
13.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
85.9 ± 1.5 |
7.4 ± 0.1 |
14.2 ± 0.3 |
56.4 ± 0.6 |
11.62 ± 0.24 |
1.52 ± 0.02 |
| VC |
100.7 ± 0.9 |
1.6 ± 0.0 |
3.2 ± 0.1 |
56.8 ± 0.6 |
61.57 ± 1.28 |
1.77 ± 0.03 |
| MX1 |
100.2 ± 0.9 |
3.4 ± 0.1 |
6.6 ± 0.1 |
56.7 ± 0.6 |
29.29 ± 0.59 |
1.77 ± 0.03 |
| MX2 |
100.3 ± 0.9 |
3.4 ± 0.1 |
6.6 ± 0.1 |
56.8 ± 0.6 |
29.57 ± 0.60 |
1.77 ± 0.03 |
| MX3 |
100.5 ± 0.9 |
3.3 ± 0.0 |
6.4 ± 0.1 |
56.8 ± 0.6 |
30.15 ± 0.62 |
1.77 ± 0.03 |
| RH8 |
96.7 ± 0.7 |
4.5 ± 0.1 |
8.7 ± 0.2 |
56.7 ± 0.6 |
21.50 ± 0.36 |
1.71 ± 0.01 |
| RH9 |
82.5 ± 2.0 |
5.4 ± 0.1 |
10.3 ± 0.2 |
56.6 ± 0.6 |
15.38 ± 0.40 |
1.46 ± 0.03 |
| RH10 |
83.1 ± 2.0 |
5.3 ± 0.1 |
10.2 ± 0.2 |
56.6 ± 0.6 |
15.65 ± 0.40 |
1.47 ± 0.03 |
| Average |
93.7 |
4.3 |
8.3 |
56.7 |
26.8 |
1.7 |
| Median |
100.2 |
4.5 |
8.7 |
56.7 |
29.3 |
1.8 |
| Deviation |
8.3 |
1.7 |
3.3 |
0.1 |
15.8 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
64.7 ± 2.4 |
7.7 ± 0.5 |
17.4 ± 0.4 |
66.1 ± 1.7 |
8.39 ± 0.53 |
0.98 ± 0.02 |
| VC |
76.0 ± 2.1 |
1.7 ± 0.1 |
3.9 ± 0.1 |
66.6 ± 1.7 |
44.55 ± 3.73 |
1.14 ± 0.05 |
| MX1 |
75.6 ± 2.1 |
3.6 ± 0.2 |
8.1 ± 0.2 |
66.5 ± 1.7 |
21.19 ± 1.76 |
1.14 ± 0.04 |
| MX2 |
75.7 ± 2.1 |
3.6 ± 0.2 |
8.0 ± 0.2 |
66.5 ± 1.7 |
21.40 ± 1.78 |
1.14 ± 0.04 |
| MX3 |
75.9 ± 2.1 |
3.5 ± 0.2 |
7.9 ± 0.2 |
66.5 ± 1.7 |
21.83 ± 1.83 |
1.14 ± 0.04 |
| RH8 |
73.3 ± 2.0 |
4.7 ± 0.3 |
10.6 ± 0.2 |
66.4 ± 1.7 |
15.62 ± 1.09 |
1.10 ± 0.03 |
| RH9 |
62.5 ± 2.8 |
5.6 ± 0.4 |
12.7 ± 0.3 |
66.4 ± 1.7 |
11.15 ± 0.68 |
0.94 ± 0.03 |
| RH10 |
62.9 ± 2.8 |
5.6 ± 0.4 |
12.6 ± 0.3 |
66.4 ± 1.7 |
11.35 ± 0.69 |
0.95 ± 0.03 |
| Average |
70.8 |
4.5 |
10.2 |
66.4 |
19.4 |
1.1 |
| Median |
75.6 |
4.7 |
10.6 |
66.5 |
21.2 |
1.1 |
| Deviation |
6.3 |
1.8 |
4.1 |
0.1 |
11.4 |
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)
| 
