Database: Ace Shock Analysis
Event ID: 20070840430
Observation time: 03/25/2007 84.18776 0430 [UT]
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|
General
Information (About, Top)
| Year |
2007 |
| Fractional day of year |
84.187757 |
| Arrival time of shock [seconds of day] |
16222.2 ± 60.0 |
| Shock type |
SR |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
239.767 |
| Y GSE location of spacecraft [Re] |
32.103 |
| Z GSE location of spacecraft [Re] |
-22.062 |
| Upstream plasma points selected for analysis |
0013 |
| Upstream field points selected for analysis |
0781 |
| Downstream plasma points selected for analysis |
0011
|
| Downstream field points selected for analysis |
0691 |
| Minimum chisq/dof for RH8,RH9,RH10 |
20.11, 21.51, 23.16 |
Event added to database
|
Tue Oct 14 14:34:42 2014
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Event last processed
|
Wed Oct 15 12:29:12 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
54.610 ± 30.455
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-362.9 ± 3.4 |
-374.5 ± 2.9 |
| Vy GSE [km/s] |
-41.6 ± 2.3 |
-44.2 ± 3.7 |
| Vz GSE [km/s] |
-49.4 ± 3.0 |
-58.0 ± 3.2 |
| Wi [km/s] |
27.3 ± 1.3 |
47.5 ± 1.5 |
| We [km/s] |
864.0 ± 39.8 |
1502.1 ± 46.1 |
| Ni [n/cc] |
11.4 ± 0.4 |
7.4 ± 0.7 |
| Bx GSE [nT] |
5.5 ± 0.3 |
7.1 ± 0.4 |
| By GSE [nT] |
9.9 ± 0.1 |
3.6 ± 0.8 |
| Bz GSE [nT] |
-0.4 ± 0.5 |
-4.8 ± 0.6 |
Plasma Beta
|
0.138 ± 0.135
|
0.411 ± 0.419
|
Sound Speed [km/s]
|
35.27 ± 1.62
|
61.32 ± 1.88
|
Alfven Speed [km/s]
|
73.53 ± 1.44
|
74.93 ± 6.09
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.748 ± 0.030 |
-0.490 ± 0.040 |
0.448 ± 0.415 |
26.63 ± 2.54 |
213.25 ± 2.96 |
| VC |
-0.803 ± 0.183 |
-0.206 ± 0.326 |
-0.559 ± 0.492 |
-33.96 ± 17.31 |
194.41 ± 23.07 |
| MX1 |
-0.881 ± 0.285 |
0.215 ± 0.646 |
-0.421 ± 0.394 |
-24.88 ± 33.44 |
166.30 ± 41.80 |
| MX2 |
-0.906 ± 0.167 |
-0.363 ± 0.367 |
0.216 ± 0.213 |
12.49 ± 22.55 |
201.84 ± 23.14 |
| MX3 |
-0.897 ± 0.114 |
0.105 ± 0.190 |
-0.429 ± 0.400 |
-25.40 ± 15.03 |
173.34 ± 12.12 |
| RH08 |
-0.450 ± 0.025 |
0.399 ± 0.024 |
-0.799 ± 0.557 |
-53.02 ± 2.00 |
138.38 ± 2.00 |
| RH09 |
-0.450 ± 0.053 |
0.399 ± 0.057 |
-0.799 ± 0.557 |
-53.02 ± 2.41 |
138.38 ± 6.65 |
| RH10 |
-0.475 ± 0.054 |
0.393 ± 0.059 |
-0.788 ± 0.559 |
-51.97 ± 2.85 |
140.39 ± 6.46 |
| Average |
-0.701 |
0.056 |
-0.391 |
-25.393 |
170.788 |
| Median |
-0.748 |
0.215 |
-0.429 |
-25.401 |
173.343 |
| Deviation |
0.208 |
0.363 |
0.477 |
30.350 |
30.180 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
36.1 ± 1.7 |
258.5 ± 1.0 |
0.65 ± 0.07 |
| VC |
56.6 ± 2.2 |
301.0 ± 0.9 |
0.65 ± 0.07 |
| MX1 |
76.9 ± 2.0 |
306.9 ± 1.0 |
0.65 ± 0.07 |
| MX2 |
40.0 ± 1.5 |
315.9 ± 1.1 |
0.65 ± 0.07 |
| MX3 |
70.8 ± 2.0 |
316.5 ± 1.0 |
0.65 ± 0.07 |
| RH08 |
80.9 ± 2.3 |
164.3 ± 0.8 |
0.65 ± 0.07 |
| RH09 |
80.9 ± 2.3 |
164.3 ± 0.8 |
0.65 ± 0.07 |
| RH10 |
81.9 ± 2.3 |
173.1 ± 9.1 |
0.65 ± 0.07 |
| Average |
65.5 |
250.1 |
0.65 |
| Median |
76.9 |
301.0 |
0.65 |
| Deviation |
18.9 |
71.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-11.1 ± 3.0 |
27.2 ± 1.2 |
59.4 ± 1.2 |
76.9 ± 1.5 |
-0.41 ± 0.10 |
-0.14 ± 0.04 |
| VC |
-26.7 ± 2.8 |
17.9 ± 0.7 |
40.5 ± 0.8 |
79.6 ± 1.7 |
-1.48 ± 0.12 |
-0.33 ± 0.03 |
| MX1 |
-24.7 ± 3.1 |
7.2 ± 0.3 |
16.6 ± 0.3 |
81.2 ± 1.7 |
-3.42 ± 0.33 |
-0.30 ± 0.03 |
| MX2 |
-17.4 ± 3.1 |
25.6 ± 1.1 |
56.3 ± 1.1 |
77.4 ± 1.6 |
-0.68 ± 0.11 |
-0.22 ± 0.04 |
| MX3 |
-25.9 ± 3.0 |
10.6 ± 0.4 |
24.2 ± 0.5 |
80.9 ± 1.7 |
-2.45 ± 0.22 |
-0.32 ± 0.03 |
| RH8 |
-21.7 ± 2.6 |
5.1 ± 0.2 |
11.7 ± 0.2 |
81.4 ± 1.7 |
-4.29 ± 0.43 |
-0.27 ± 0.03 |
| RH9 |
-21.7 ± 2.6 |
5.1 ± 0.2 |
11.7 ± 0.2 |
81.4 ± 1.7 |
-4.29 ± 0.43 |
-0.27 ± 0.03 |
| RH10 |
-21.6 ± 2.6 |
4.5 ± 0.2 |
10.3 ± 0.2 |
81.4 ± 1.7 |
-4.83 ± 0.49 |
-0.27 ± 0.03 |
| Average |
-21.3 |
12.9 |
28.8 |
80.0 |
-2.7 |
-0.3 |
| Median |
-21.7 |
10.6 |
24.2 |
81.2 |
-2.4 |
-0.3 |
| Deviation |
5.1 |
9.5 |
20.4 |
1.9 |
1.7 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-17.2 ± 3.4 |
42.5 ± 1.3 |
60.5 ± 4.9 |
87.1 ± 4.5 |
-0.41 ± 0.09 |
-0.20 ± 0.05 |
| VC |
-41.4 ± 1.9 |
27.1 ± 0.9 |
41.3 ± 3.4 |
93.0 ± 4.5 |
-1.53 ± 0.07 |
-0.45 ± 0.03 |
| MX1 |
-38.1 ± 2.4 |
10.8 ± 0.4 |
16.9 ± 1.4 |
96.3 ± 4.6 |
-3.54 ± 0.25 |
-0.40 ± 0.03 |
| MX2 |
-27.0 ± 3.1 |
39.7 ± 1.3 |
57.4 ± 4.7 |
88.4 ± 4.5 |
-0.68 ± 0.09 |
-0.31 ± 0.05 |
| MX3 |
-39.8 ± 2.2 |
15.8 ± 0.5 |
24.7 ± 2.0 |
95.6 ± 4.5 |
-2.52 ± 0.16 |
-0.42 ± 0.03 |
| RH8 |
-32.8 ± 2.7 |
7.5 ± 0.3 |
11.9 ± 1.0 |
96.6 ± 4.6 |
-4.35 ± 0.29 |
-0.34 ± 0.02 |
| RH9 |
-32.8 ± 2.7 |
7.5 ± 0.3 |
11.9 ± 1.0 |
96.6 ± 4.6 |
-4.35 ± 0.29 |
-0.34 ± 0.02 |
| RH10 |
-33.0 ± 2.6 |
6.7 ± 0.2 |
10.5 ± 0.9 |
96.7 ± 4.6 |
-4.95 ± 0.32 |
-0.34 ± 0.02 |
| Average |
-32.8 |
19.7 |
29.4 |
93.8 |
-2.8 |
-0.3 |
| Median |
-32.8 |
15.8 |
24.7 |
96.3 |
-2.5 |
-0.3 |
| Deviation |
7.8 |
14.8 |
20.8 |
3.9 |
1.8 |
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)
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