Database: Ace Shock Analysis
Event ID: 20041000148
Observation time: 04/09/2004 100.07569 0148 [UT]
|
|
General
Information (About, Top)
| Year |
2004 |
| Fractional day of year |
100.075691 |
| Arrival time of shock [seconds of day] |
6539.7 ± 10.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
228.432 |
| Y GSE location of spacecraft [Re] |
38.582 |
| Z GSE location of spacecraft [Re] |
-22.131 |
| Upstream plasma points selected for analysis |
0003 |
| Upstream field points selected for analysis |
0151 |
| Downstream plasma points selected for analysis |
0003
|
| Downstream field points selected for analysis |
0175 |
| Minimum chisq/dof for RH8,RH9,RH10 |
13.32, Infinity, -382.53 |
Event added to database
|
Wed Oct 15 10:21:49 2014
|
Event last processed
|
Wed Oct 15 11:16:05 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
42.110 ± 0.282
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-453.9 ± 4.5 |
-516.7 ± 3.6 |
| Vy GSE [km/s] |
0.0 ± 13.5 |
-4.5 ± 16.5 |
| Vz GSE [km/s] |
-11.9 ± 7.5 |
-18.2 ± 3.3 |
| Wi [km/s] |
42.8 ± 2.2 |
56.6 ± 2.9 |
| We [km/s] |
1352.3 ± 69.0 |
1791.0 ± 90.8 |
| Ni [n/cc] |
4.5 ± 0.3 |
9.1 ± 0.6 |
| Bx GSE [nT] |
2.4 ± 0.3 |
3.0 ± 0.5 |
| By GSE [nT] |
-1.6 ± 0.6 |
-0.1 ± 2.9 |
| Bz GSE [nT] |
-4.1 ± 1.4 |
-7.1 ± 0.6 |
Plasma Beta
|
0.752 ± 0.879
|
0.959 ± 0.972
|
Sound Speed [km/s]
|
55.21 ± 2.82
|
73.12 ± 3.71
|
Alfven Speed [km/s]
|
51.88 ± 13.21
|
58.12 ± 5.95
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.717 ± 0.259 |
0.613 ± 0.288 |
0.332 ± 0.319 |
19.37 ± 26.76 |
139.44 ± 21.55 |
| VC |
-0.995 ± 0.017 |
-0.054 ± 0.280 |
-0.090 ± 0.090 |
-5.15 ± 5.53 |
183.08 ± 16.16 |
| MX1 |
-0.979 ± 0.118 |
-0.173 ± 0.559 |
-0.108 ± 0.108 |
-6.22 ± 34.96 |
190.02 ± 32.69 |
| MX2 |
-0.985 ± 0.058 |
-0.088 ± 0.240 |
-0.146 ± 0.144 |
-8.37 ± 21.29 |
185.12 ± 13.96 |
| MX3 |
-0.994 ± 0.022 |
-0.040 ± 0.240 |
-0.097 ± 0.097 |
-5.58 ± 11.35 |
182.29 ± 13.85 |
| RH08 |
-0.999 ± 0.003 |
-0.044 ± 0.069 |
0.006 ± 0.006 |
0.32 ± 4.05 |
182.51 ± 3.94 |
| RH09 |
-0.000 ± 0.035 |
-0.000 ± 0.000 |
-1.000 ± 0.000 |
-90.00 ± 2.00 |
0.00 ± 2.00 |
| RH10 |
-0.043 ± 0.071 |
-0.756 ± 0.045 |
0.654 ± 0.539 |
40.82 ± 3.92 |
266.74 ± 5.36 |
| Average |
-0.714 |
-0.068 |
-0.056 |
-6.852 |
166.150 |
| Median |
-0.979 |
-0.044 |
-0.090 |
-5.154 |
183.084 |
| Deviation |
0.438 |
0.369 |
0.472 |
37.668 |
75.765 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
35.9 ± 2.8 |
399.0 ± 7.9 |
2.05 ± 0.24 |
| VC |
67.2 ± 4.2 |
578.5 ± 1.8 |
2.05 ± 0.24 |
| MX1 |
70.9 ± 4.2 |
566.8 ± 2.5 |
2.05 ± 0.24 |
| MX2 |
70.9 ± 4.2 |
572.9 ± 2.0 |
2.05 ± 0.24 |
| MX3 |
67.3 ± 4.2 |
578.2 ± 1.8 |
2.05 ± 0.24 |
| RH08 |
61.9 ± 4.2 |
577.8 ± 1.7 |
2.05 ± 0.24 |
| RH09 |
35.4 ± 3.1 |
26.1 ± 2.8 |
2.05 ± 0.24 |
| RH10 |
71.8 ± 2.2 |
22.1 ± 19.7 |
2.05 ± 0.24 |
| Average |
60.1 |
415.2 |
2.05 |
| Median |
67.3 |
572.9 |
2.05 |
| Deviation |
15.5 |
248.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
77.5 ± 7.3 |
33.7 ± 4.6 |
42.0 ± 10.7 |
68.2 ± 9.1 |
2.32 ± 0.25 |
1.14 ± 0.13 |
| VC |
126.0 ± 5.8 |
14.7 ± 2.0 |
20.1 ± 5.1 |
74.7 ± 10.0 |
8.66 ± 1.33 |
1.71 ± 0.26 |
| MX1 |
121.2 ± 7.5 |
12.4 ± 1.7 |
17.0 ± 4.3 |
75.1 ± 10.0 |
9.94 ± 1.64 |
1.64 ± 0.27 |
| MX2 |
123.9 ± 6.6 |
12.4 ± 1.7 |
17.0 ± 4.3 |
75.1 ± 10.0 |
10.17 ± 1.61 |
1.67 ± 0.26 |
| MX3 |
125.7 ± 5.7 |
14.7 ± 2.0 |
20.0 ± 5.1 |
74.7 ± 10.0 |
8.68 ± 1.33 |
1.71 ± 0.26 |
| RH8 |
124.5 ± 5.0 |
18.1 ± 2.5 |
24.4 ± 6.2 |
73.9 ± 9.9 |
6.98 ± 1.06 |
1.71 ± 0.25 |
| RH9 |
14.3 ± 7.5 |
34.0 ± 4.7 |
42.3 ± 10.8 |
68.1 ± 9.0 |
0.43 ± 0.24 |
0.21 ± 0.12 |
| RH10 |
10.4 ± 6.5 |
11.8 ± 1.6 |
16.2 ± 4.1 |
75.2 ± 10.0 |
0.93 ± 0.62 |
0.15 ± 0.10 |
| Average |
90.5 |
19.0 |
24.9 |
73.1 |
6.0 |
1.2 |
| Median |
123.9 |
14.7 |
20.1 |
74.7 |
8.7 |
1.7 |
| Deviation |
50.9 |
9.4 |
11.0 |
3.1 |
4.1 |
0.7 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
37.4 ± 9.1 |
41.0 ± 3.5 |
47.1 ± 4.8 |
83.9 ± 5.6 |
0.93 ± 0.30 |
0.45 ± 0.14 |
| VC |
62.8 ± 4.5 |
18.0 ± 1.5 |
22.6 ± 2.3 |
91.7 ± 6.4 |
3.50 ± 0.27 |
0.69 ± 0.05 |
| MX1 |
58.3 ± 6.4 |
15.1 ± 1.2 |
19.0 ± 1.9 |
92.2 ± 6.4 |
3.87 ± 0.33 |
0.63 ± 0.05 |
| MX2 |
60.7 ± 5.1 |
15.1 ± 1.2 |
19.0 ± 1.9 |
92.2 ± 6.4 |
4.04 ± 0.31 |
0.66 ± 0.05 |
| MX3 |
62.5 ± 4.3 |
17.9 ± 1.5 |
22.5 ± 2.3 |
91.7 ± 6.4 |
3.50 ± 0.28 |
0.68 ± 0.05 |
| RH8 |
61.6 ± 4.2 |
22.0 ± 1.8 |
27.4 ± 2.8 |
90.8 ± 6.3 |
2.80 ± 0.23 |
0.68 ± 0.05 |
| RH9 |
8.0 ± 3.3 |
41.3 ± 3.5 |
47.4 ± 4.9 |
83.8 ± 5.6 |
0.19 ± 0.06 |
0.09 ± 0.03 |
| RH10 |
8.4 ± 10.8 |
14.4 ± 1.2 |
18.2 ± 1.9 |
92.3 ± 6.4 |
0.56 ± 0.68 |
0.09 ± 0.11 |
| Average |
45.0 |
23.1 |
27.9 |
89.8 |
2.4 |
0.5 |
| Median |
60.7 |
18.0 |
22.6 |
91.7 |
3.5 |
0.7 |
| Deviation |
24.2 |
11.4 |
12.3 |
3.7 |
1.6 |
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)
| 
