Database: Ace Shock Analysis
Event ID: 20043121754
Observation time: 11/07/2004 312.74587 1754 [UT]
|
|
General
Information (About, Top)
| Year |
2004 |
| Fractional day of year |
312.745865 |
| Arrival time of shock [seconds of day] |
64442.8 ± 22.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
241.506 |
| Y GSE location of spacecraft [Re] |
24.482 |
| Z GSE location of spacecraft [Re] |
-16.105 |
| Upstream plasma points selected for analysis |
0004 |
| Upstream field points selected for analysis |
0260 |
| Downstream plasma points selected for analysis |
0005
|
| Downstream field points selected for analysis |
0340 |
| Minimum chisq/dof for RH8,RH9,RH10 |
13.20, 36.94, 48.06 |
Event added to database
|
Wed Oct 15 10:51:25 2014
|
Event last processed
|
Wed Oct 15 11:38:46 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
66.842 ± 24.179
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-483.6 ± 6.4 |
-582.1 ± 13.9 |
| Vy GSE [km/s] |
6.1 ± 2.4 |
-67.4 ± 6.0 |
| Vz GSE [km/s] |
-15.4 ± 5.2 |
-12.1 ± 2.9 |
| Wi [km/s] |
73.6 ± 0.9 |
86.1 ± 1.7 |
| We [km/s] |
2326.1 ± 27.1 |
2723.2 ± 54.7 |
| Ni [n/cc] |
17.0 ± 1.0 |
35.5 ± 3.0 |
| Bx GSE [nT] |
1.3 ± 3.5 |
-10.9 ± 1.4 |
| By GSE [nT] |
4.3 ± 0.5 |
11.7 ± 0.9 |
| Bz GSE [nT] |
19.7 ± 1.5 |
37.4 ± 0.8 |
Plasma Beta
|
0.467 ± 0.452
|
0.335 ± 0.341
|
Sound Speed [km/s]
|
94.96 ± 1.10
|
111.17 ± 2.23
|
Alfven Speed [km/s]
|
108.28 ± 8.21
|
149.39 ± 7.68
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.804 ± 0.049 |
0.104 ± 0.121 |
-0.586 ± 0.507 |
-35.86 ± 4.62 |
172.63 ± 8.60 |
| VC |
-0.798 ± 0.054 |
-0.602 ± 0.071 |
0.025 ± 0.025 |
1.46 ± 2.48 |
217.02 ± 5.10 |
| MX1 |
-0.756 ± 0.053 |
-0.603 ± 0.063 |
-0.253 ± 0.248 |
-14.68 ± 6.19 |
218.59 ± 4.63 |
| MX2 |
-0.720 ± 0.064 |
-0.664 ± 0.069 |
-0.201 ± 0.198 |
-11.59 ± 4.22 |
222.68 ± 5.42 |
| MX3 |
-0.693 ± 0.073 |
-0.702 ± 0.072 |
-0.165 ± 0.164 |
-9.50 ± 3.61 |
225.38 ± 5.95 |
| RH08 |
-0.293 ± 0.034 |
0.836 ± 0.014 |
-0.464 ± 0.427 |
-27.63 ± 0.95 |
109.30 ± 2.31 |
| RH09 |
-0.330 ± 0.062 |
-0.941 ± 0.022 |
0.073 ± 0.072 |
4.16 ± 3.57 |
250.70 ± 3.77 |
| RH10 |
-0.488 ± 0.060 |
-0.869 ± 0.034 |
-0.084 ± 0.084 |
-4.81 ± 3.95 |
240.67 ± 3.95 |
| Average |
-0.610 |
-0.430 |
-0.207 |
-12.306 |
207.121 |
| Median |
-0.693 |
-0.603 |
-0.165 |
-9.499 |
222.684 |
| Deviation |
0.210 |
0.601 |
0.227 |
13.736 |
45.650 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
52.8 ± 10.1 |
517.9 ± 7.7 |
2.05 ± 0.21 |
| VC |
80.9 ± 8.2 |
614.4 ± 8.9 |
2.05 ± 0.21 |
| MX1 |
64.7 ± 8.2 |
587.6 ± 8.4 |
2.05 ± 0.21 |
| MX2 |
67.3 ± 7.6 |
572.5 ± 8.2 |
2.05 ± 0.21 |
| MX3 |
69.1 ± 7.2 |
559.8 ± 8.0 |
2.05 ± 0.21 |
| RH08 |
73.1 ± 3.0 |
92.9 ± 2.8 |
2.05 ± 0.21 |
| RH09 |
81.3 ± 3.1 |
348.8 ± 5.3 |
2.05 ± 0.21 |
| RH10 |
72.7 ± 4.8 |
445.6 ± 28.3 |
2.05 ± 0.21 |
| Average |
70.2 |
467.4 |
2.05 |
| Median |
72.7 |
559.8 |
2.05 |
| Deviation |
9.2 |
174.4 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
119.6 ± 4.2 |
45.5 ± 1.7 |
65.5 ± 5.0 |
136.7 ± 6.3 |
2.63 ± 0.10 |
0.88 ± 0.04 |
| VC |
232.5 ± 4.8 |
11.4 ± 0.4 |
17.2 ± 1.3 |
143.6 ± 6.5 |
20.47 ± 0.50 |
1.62 ± 0.05 |
| MX1 |
221.8 ± 3.9 |
31.2 ± 1.2 |
46.2 ± 3.5 |
140.7 ± 6.4 |
7.12 ± 0.19 |
1.58 ± 0.05 |
| MX2 |
225.2 ± 3.8 |
28.0 ± 1.1 |
41.8 ± 3.2 |
141.3 ± 6.4 |
8.04 ± 0.21 |
1.60 ± 0.05 |
| MX3 |
226.5 ± 3.7 |
25.8 ± 1.0 |
38.6 ± 2.9 |
141.8 ± 6.4 |
8.77 ± 0.23 |
1.60 ± 0.05 |
| RH8 |
-61.0 ± 2.8 |
21.0 ± 0.8 |
31.5 ± 2.4 |
142.6 ± 6.4 |
-2.91 ± 0.14 |
-0.43 ± 0.02 |
| RH9 |
196.2 ± 2.5 |
10.8 ± 0.4 |
16.4 ± 1.2 |
143.7 ± 6.5 |
18.17 ± 0.47 |
1.37 ± 0.05 |
| RH10 |
213.6 ± 2.9 |
21.5 ± 0.8 |
32.3 ± 2.4 |
142.5 ± 6.4 |
9.95 ± 0.26 |
1.50 ± 0.05 |
| Average |
171.8 |
24.4 |
36.2 |
141.6 |
9.0 |
1.2 |
| Median |
221.8 |
25.8 |
38.6 |
142.5 |
8.8 |
1.6 |
| Deviation |
100.9 |
11.2 |
16.0 |
2.2 |
7.6 |
0.7 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
49.9 ± 11.6 |
56.6 ± 1.0 |
90.4 ± 4.6 |
177.5 ± 6.0 |
0.88 ± 0.21 |
0.28 ± 0.07 |
| VC |
109.5 ± 9.9 |
14.2 ± 0.3 |
23.7 ± 1.2 |
185.7 ± 5.9 |
7.72 ± 0.82 |
0.59 ± 0.07 |
| MX1 |
103.8 ± 9.1 |
38.9 ± 0.7 |
63.7 ± 3.3 |
182.2 ± 6.0 |
2.67 ± 0.28 |
0.57 ± 0.07 |
| MX2 |
106.1 ± 8.6 |
35.0 ± 0.6 |
57.6 ± 3.0 |
183.0 ± 6.0 |
3.04 ± 0.29 |
0.58 ± 0.06 |
| MX3 |
107.2 ± 8.3 |
32.3 ± 0.6 |
53.3 ± 2.7 |
183.5 ± 6.0 |
3.33 ± 0.31 |
0.59 ± 0.06 |
| RH8 |
-26.9 ± 8.4 |
26.2 ± 0.5 |
43.4 ± 2.2 |
184.4 ± 5.9 |
-1.03 ± 0.31 |
-0.15 ± 0.04 |
| RH9 |
94.3 ± 5.4 |
13.5 ± 0.2 |
22.6 ± 1.2 |
185.8 ± 5.9 |
6.99 ± 0.48 |
0.51 ± 0.04 |
| RH10 |
101.9 ± 6.1 |
26.8 ± 0.5 |
44.5 ± 2.3 |
184.3 ± 5.9 |
3.80 ± 0.28 |
0.55 ± 0.05 |
| Average |
80.7 |
30.4 |
49.9 |
183.3 |
3.4 |
0.4 |
| Median |
103.8 |
32.3 |
53.3 |
184.3 |
3.3 |
0.6 |
| Deviation |
47.6 |
13.9 |
22.0 |
2.7 |
2.9 |
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)
| 
