Database: Ace Shock Analysis
Event ID: 20072080358
Observation time: 07/27/2007 208.16544 0358 [UT]
|
|
General
Information (About, Top)
| Year |
2007 |
| Fractional day of year |
208.165438 |
| Arrival time of shock [seconds of day] |
14293.8 ± 70.0 |
| Shock type |
FR |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
224.793 |
| Y GSE location of spacecraft [Re] |
12.565 |
| Z GSE location of spacecraft [Re] |
19.391 |
| Upstream plasma points selected for analysis |
0009 |
| Upstream field points selected for analysis |
0589 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0484 |
| Minimum chisq/dof for RH8,RH9,RH10 |
17.25, 26.90, 28.91 |
Event added to database
|
Tue Oct 14 15:57:29 2014
|
Event last processed
|
Wed Oct 15 12:40:30 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
51.174 ± 5.767
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-434.9 ± 1.7 |
-471.8 ± 4.4 |
| Vy GSE [km/s] |
78.0 ± 3.8 |
47.1 ± 4.0 |
| Vz GSE [km/s] |
-16.6 ± 7.2 |
7.5 ± 4.1 |
| Wi [km/s] |
44.1 ± 2.0 |
41.6 ± 0.6 |
| We [km/s] |
1393.4 ± 63.3 |
1315.8 ± 19.6 |
| Ni [n/cc] |
6.4 ± 0.4 |
3.9 ± 0.1 |
| Bx GSE [nT] |
-4.7 ± 0.7 |
-3.4 ± 0.5 |
| By GSE [nT] |
5.0 ± 0.9 |
3.4 ± 0.3 |
| Bz GSE [nT] |
4.0 ± 1.2 |
-0.8 ± 0.3 |
Plasma Beta
|
0.401 ± 0.405
|
0.587 ± 0.592
|
Sound Speed [km/s]
|
56.88 ± 2.59
|
53.72 ± 0.80
|
Alfven Speed [km/s]
|
69.73 ± 2.72
|
54.37 ± 1.33
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.662 ± 0.126 |
0.631 ± 0.128 |
-0.405 ± 0.381 |
-23.87 ± 14.32 |
136.41 ± 9.31 |
| VC |
-0.690 ± 0.053 |
-0.575 ± 0.052 |
0.440 ± 0.409 |
26.09 ± 6.97 |
219.78 ± 3.26 |
| MX1 |
-0.879 ± 0.533 |
-0.459 ± 1.019 |
0.126 ± 0.125 |
7.23 ± 13.58 |
207.58 ± 66.37 |
| MX2 |
-0.413 ± 0.635 |
0.862 ± 0.311 |
-0.293 ± 0.284 |
-17.04 ± 14.31 |
115.61 ± 42.14 |
| MX3 |
-0.682 ± 0.251 |
-0.720 ± 0.238 |
0.128 ± 0.127 |
7.33 ± 8.57 |
226.58 ± 19.96 |
| RH08 |
-0.764 ± 0.014 |
0.470 ± 0.022 |
-0.441 ± 0.410 |
-26.19 ± 0.57 |
148.41 ± 1.61 |
| RH09 |
-0.308 ± 0.068 |
0.931 ± 0.026 |
-0.196 ± 0.193 |
-11.28 ± 3.96 |
108.30 ± 4.16 |
| RH10 |
-0.356 ± 0.067 |
0.914 ± 0.029 |
-0.196 ± 0.193 |
-11.28 ± 3.96 |
111.31 ± 4.16 |
| Average |
-0.594 |
0.257 |
-0.105 |
-6.124 |
159.249 |
| Median |
-0.662 |
0.631 |
-0.196 |
-11.276 |
148.412 |
| Deviation |
0.208 |
0.717 |
0.307 |
18.074 |
50.669 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
54.6 ± 11.2 |
349.9 ± 1.2 |
0.59 ± 0.02 |
| VC |
74.9 ± 4.6 |
160.8 ± 1.9 |
0.59 ± 0.02 |
| MX1 |
73.6 ± 1.9 |
264.1 ± 1.9 |
0.59 ± 0.02 |
| MX2 |
50.5 ± 10.4 |
281.5 ± 1.1 |
0.59 ± 0.02 |
| MX3 |
89.5 ± 2.7 |
157.4 ± 2.0 |
0.59 ± 0.02 |
| RH08 |
58.8 ± 10.7 |
371.2 ± 1.4 |
0.59 ± 0.02 |
| RH09 |
48.3 ± 9.4 |
246.9 ± 1.1 |
0.59 ± 0.02 |
| RH10 |
46.9 ± 9.8 |
262.9 ± 8.8 |
0.59 ± 0.02 |
| Average |
62.1 |
261.8 |
0.59 |
| Median |
58.8 |
264.1 |
0.59 |
| Deviation |
15.5 |
77.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
6.0 ± 4.1 |
26.7 ± 1.0 |
40.4 ± 1.6 |
86.0 ± 2.8 |
0.23 ± 0.16 |
0.07 ± 0.05 |
| VC |
-87.2 ± 5.5 |
11.5 ± 0.4 |
18.1 ± 0.7 |
89.3 ± 3.0 |
-7.57 ± 0.72 |
-0.98 ± 0.09 |
| MX1 |
-80.4 ± 3.6 |
12.6 ± 0.5 |
19.7 ± 0.8 |
89.1 ± 3.0 |
-6.41 ± 0.50 |
-0.90 ± 0.07 |
| MX2 |
29.7 ± 4.3 |
29.6 ± 1.1 |
44.3 ± 1.7 |
85.0 ± 2.8 |
1.01 ± 0.18 |
0.35 ± 0.06 |
| MX3 |
-80.7 ± 4.3 |
0.3 ± 0.0 |
0.6 ± 0.0 |
90.0 ± 3.0 |
-233.02 ± 19.91 |
-0.90 ± 0.07 |
| RH8 |
-5.2 ± 3.9 |
23.7 ± 0.9 |
36.1 ± 1.4 |
86.8 ± 2.9 |
-0.22 ± 0.16 |
-0.06 ± 0.04 |
| RH9 |
37.1 ± 4.1 |
31.2 ± 1.1 |
46.4 ± 1.8 |
84.4 ± 2.8 |
1.19 ± 0.17 |
0.44 ± 0.06 |
| RH10 |
33.4 ± 4.0 |
32.2 ± 1.2 |
47.6 ± 1.9 |
84.1 ± 2.8 |
1.04 ± 0.16 |
0.40 ± 0.06 |
| Average |
-18.4 |
21.0 |
31.7 |
86.8 |
-30.5 |
-0.2 |
| Median |
6.0 |
26.7 |
40.4 |
86.8 |
0.2 |
0.1 |
| Deviation |
55.2 |
11.5 |
17.0 |
2.4 |
81.9 |
0.6 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
10.8 ± 2.3 |
23.2 ± 0.4 |
31.5 ± 0.8 |
72.8 ± 1.2 |
0.46 ± 0.10 |
0.15 ± 0.03 |
| VC |
-141.1 ± 5.9 |
10.0 ± 0.2 |
14.1 ± 0.3 |
75.8 ± 1.2 |
-14.09 ± 0.76 |
-1.86 ± 0.10 |
| MX1 |
-130.1 ± 5.7 |
10.9 ± 0.2 |
15.4 ± 0.4 |
75.7 ± 1.2 |
-11.93 ± 0.67 |
-1.72 ± 0.10 |
| MX2 |
48.1 ± 2.8 |
25.8 ± 0.4 |
34.6 ± 0.8 |
72.0 ± 1.1 |
1.87 ± 0.12 |
0.67 ± 0.04 |
| MX3 |
-131.3 ± 5.8 |
0.3 ± 0.0 |
0.4 ± 0.0 |
76.4 ± 1.2 |
-435.91 ± 24.54 |
-1.72 ± 0.10 |
| RH8 |
-8.2 ± 2.5 |
20.6 ± 0.3 |
28.2 ± 0.7 |
73.6 ± 1.2 |
-0.40 ± 0.12 |
-0.11 ± 0.03 |
| RH9 |
59.3 ± 3.0 |
27.2 ± 0.4 |
36.2 ± 0.9 |
71.4 ± 1.1 |
2.18 ± 0.13 |
0.83 ± 0.05 |
| RH10 |
53.2 ± 2.8 |
28.1 ± 0.4 |
37.1 ± 0.9 |
71.1 ± 1.1 |
1.90 ± 0.12 |
0.75 ± 0.05 |
| Average |
-29.9 |
18.3 |
24.7 |
73.6 |
-57.0 |
-0.4 |
| Median |
10.8 |
23.2 |
31.5 |
73.6 |
0.5 |
0.1 |
| Deviation |
89.2 |
10.0 |
13.3 |
2.1 |
153.2 |
1.2 |
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)
| 
