Database: Ace Shock Analysis
Event ID: 20041031735
Observation time: 04/12/2004 103.73320 1735 [UT]
|
|
General
Information (About, Top)
| Year |
2004 |
| Fractional day of year |
103.733197 |
| Arrival time of shock [seconds of day] |
63348.2 ± 20.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
230.741 |
| Y GSE location of spacecraft [Re] |
39.711 |
| Z GSE location of spacecraft [Re] |
-22.526 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0322 |
| Downstream plasma points selected for analysis |
0003
|
| Downstream field points selected for analysis |
0241 |
| Minimum chisq/dof for RH8,RH9,RH10 |
35.71, 54.87, 73.65 |
Event added to database
|
Wed Oct 15 10:24:27 2014
|
Event last processed
|
Wed Oct 15 11:20:08 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
83.674 ± 32.790
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-417.6 ± 5.5 |
-460.4 ± 4.9 |
| Vy GSE [km/s] |
-2.5 ± 5.4 |
-23.7 ± 2.8 |
| Vz GSE [km/s] |
-18.5 ± 5.7 |
65.0 ± 7.1 |
| Wi [km/s] |
35.8 ± 2.5 |
54.4 ± 2.1 |
| We [km/s] |
1133.4 ± 78.7 |
1719.7 ± 67.0 |
| Ni [n/cc] |
3.3 ± 0.5 |
9.4 ± 0.4 |
| Bx GSE [nT] |
3.0 ± 0.5 |
7.5 ± 0.7 |
| By GSE [nT] |
-2.9 ± 0.3 |
-7.4 ± 0.6 |
| Bz GSE [nT] |
-2.0 ± 0.5 |
0.9 ± 0.1 |
Plasma Beta
|
0.410 ± 0.400
|
0.521 ± 0.486
|
Sound Speed [km/s]
|
46.27 ± 3.21
|
70.21 ± 2.74
|
Alfven Speed [km/s]
|
56.23 ± 2.93
|
75.52 ± 2.76
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.362 ± 0.148 |
0.309 ± 0.168 |
0.880 ± 0.511 |
61.61 ± 4.67 |
139.52 ± 25.63 |
| VC |
-0.447 ± 0.073 |
-0.220 ± 0.051 |
0.867 ± 0.523 |
60.09 ± 5.22 |
206.20 ± 4.76 |
| MX1 |
-0.552 ± 0.048 |
0.004 ± 0.117 |
0.834 ± 0.544 |
56.51 ± 3.29 |
179.63 ± 12.20 |
| MX2 |
-0.583 ± 0.046 |
-0.054 ± 0.094 |
0.811 ± 0.553 |
54.17 ± 3.24 |
185.31 ± 9.19 |
| MX3 |
-0.597 ± 0.050 |
-0.081 ± 0.085 |
0.798 ± 0.557 |
52.93 ± 3.49 |
187.69 ± 8.11 |
| RH08 |
-0.268 ± 0.043 |
-0.652 ± 0.044 |
-0.709 ± 0.556 |
-45.19 ± 3.55 |
247.69 ± 3.50 |
| RH09 |
-0.455 ± 0.059 |
0.060 ± 0.070 |
0.888 ± 0.502 |
62.66 ± 3.78 |
172.48 ± 8.74 |
| RH10 |
-0.536 ± 0.058 |
-0.023 ± 0.069 |
0.844 ± 0.539 |
57.52 ± 3.95 |
182.51 ± 7.39 |
| Average |
-0.475 |
-0.082 |
0.651 |
45.036 |
187.626 |
| Median |
-0.455 |
-0.023 |
0.844 |
57.520 |
185.308 |
| Deviation |
0.115 |
0.275 |
0.551 |
36.619 |
30.687 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
35.9 ± 6.8 |
258.2 ± 3.4 |
2.90 ± 0.35 |
| VC |
58.2 ± 3.2 |
317.2 ± 3.8 |
2.90 ± 0.35 |
| MX1 |
44.1 ± 3.3 |
355.0 ± 3.6 |
2.90 ± 0.35 |
| MX2 |
46.3 ± 2.8 |
369.1 ± 3.6 |
2.90 ± 0.35 |
| MX3 |
47.3 ± 2.5 |
375.5 ± 3.6 |
2.90 ± 0.35 |
| RH08 |
56.6 ± 9.0 |
72.1 ± 2.6 |
2.90 ± 0.35 |
| RH09 |
44.2 ± 4.6 |
311.7 ± 3.7 |
2.90 ± 0.35 |
| RH10 |
45.9 ± 3.3 |
349.8 ± 13.6 |
2.90 ± 0.35 |
| Average |
47.3 |
301.1 |
2.90 |
| Median |
46.3 |
349.8 |
2.90 |
| Deviation |
7.2 |
100.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
124.2 ± 5.0 |
32.2 ± 1.7 |
45.6 ± 2.4 |
65.3 ± 3.0 |
3.87 ± 0.30 |
1.91 ± 0.15 |
| VC |
145.8 ± 5.7 |
19.5 ± 1.0 |
29.6 ± 1.5 |
70.2 ± 3.2 |
7.49 ± 0.46 |
2.08 ± 0.14 |
| MX1 |
140.0 ± 5.3 |
27.7 ± 1.4 |
40.4 ± 2.1 |
67.4 ± 3.1 |
5.07 ± 0.32 |
2.08 ± 0.14 |
| MX2 |
140.6 ± 5.4 |
26.5 ± 1.3 |
38.9 ± 2.0 |
67.9 ± 3.1 |
5.32 ± 0.32 |
2.07 ± 0.14 |
| MX3 |
140.6 ± 5.5 |
25.9 ± 1.3 |
38.1 ± 2.0 |
68.1 ± 3.1 |
5.44 ± 0.32 |
2.07 ± 0.13 |
| RH8 |
-54.3 ± 6.3 |
20.5 ± 1.0 |
31.0 ± 1.6 |
69.9 ± 3.2 |
-2.67 ± 0.44 |
-0.78 ± 0.12 |
| RH9 |
138.2 ± 5.3 |
27.6 ± 1.4 |
40.3 ± 2.1 |
67.4 ± 3.1 |
5.02 ± 0.34 |
2.05 ± 0.15 |
| RH10 |
141.3 ± 5.4 |
26.7 ± 1.4 |
39.1 ± 2.0 |
67.8 ± 3.1 |
5.31 ± 0.33 |
2.09 ± 0.14 |
| Average |
114.5 |
25.8 |
37.9 |
68.0 |
4.4 |
1.7 |
| Median |
140.6 |
26.7 |
39.1 |
67.9 |
5.3 |
2.1 |
| Deviation |
68.5 |
4.1 |
5.2 |
1.5 |
3.0 |
1.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
41.8 ± 4.4 |
46.7 ± 1.0 |
61.2 ± 2.2 |
92.0 ± 1.9 |
0.90 ± 0.09 |
0.45 ± 0.04 |
| VC |
49.6 ± 4.7 |
28.1 ± 0.6 |
39.8 ± 1.5 |
99.2 ± 2.1 |
1.76 ± 0.14 |
0.50 ± 0.04 |
| MX1 |
46.8 ± 3.8 |
40.0 ± 0.8 |
54.2 ± 2.0 |
95.1 ± 2.0 |
1.17 ± 0.08 |
0.49 ± 0.03 |
| MX2 |
46.8 ± 3.7 |
38.2 ± 0.8 |
52.2 ± 1.9 |
95.8 ± 2.0 |
1.22 ± 0.08 |
0.49 ± 0.03 |
| MX3 |
46.7 ± 3.6 |
37.4 ± 0.8 |
51.2 ± 1.9 |
96.1 ± 2.0 |
1.25 ± 0.08 |
0.49 ± 0.03 |
| RH8 |
-20.3 ± 6.1 |
29.5 ± 0.6 |
41.6 ± 1.5 |
98.8 ± 2.1 |
-0.69 ± 0.21 |
-0.21 ± 0.06 |
| RH9 |
45.7 ± 4.4 |
39.9 ± 0.8 |
54.1 ± 2.0 |
95.1 ± 2.0 |
1.15 ± 0.10 |
0.48 ± 0.04 |
| RH10 |
47.4 ± 4.0 |
38.5 ± 0.8 |
52.5 ± 1.9 |
95.7 ± 2.0 |
1.23 ± 0.09 |
0.49 ± 0.03 |
| Average |
38.0 |
37.3 |
50.8 |
96.0 |
1.0 |
0.4 |
| Median |
46.8 |
38.5 |
52.5 |
95.8 |
1.2 |
0.5 |
| Deviation |
23.7 |
6.0 |
7.0 |
2.3 |
0.7 |
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)
| 
