Database: Ace Shock Analysis
Event ID: 20002501613
Observation time: 09/06/2000 250.67589 1613 [UT]
|
|
General
Information (About, Top)
| Year |
2000 |
| Fractional day of year |
250.675891 |
| Arrival time of shock [seconds of day] |
58397.0 ± 16.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
0.037 |
| Y GSE location of spacecraft [Re] |
-0.006 |
| Z GSE location of spacecraft [Re] |
0.002 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0034 |
| Downstream plasma points selected for analysis |
0009
|
| Downstream field points selected for analysis |
0037 |
| Minimum chisq/dof for RH8,RH9,RH10 |
12.79, 44.54, 46.44 |
Event added to database
|
Sat Apr 30 21:47:31 2005
|
Event last processed
|
Wed Oct 15 16:48:43 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.007 ± 0.000
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-389.7 ± 1.8 |
-493.4 ± 3.1 |
| Vy GSE [km/s] |
-4.9 ± 2.0 |
-22.1 ± 3.0 |
| Vz GSE [km/s] |
-1.1 ± 2.5 |
-0.0 ± 3.2 |
| Wi [km/s] |
28.5 ± 1.7 |
41.4 ± 1.7 |
| We [km/s] |
900.0 ± 52.4 |
1310.6 ± 54.6 |
| Ni [n/cc] |
9.5 ± 0.8 |
28.5 ± 1.9 |
| Bx GSE [nT] |
-2.4 ± 0.4 |
-1.5 ± 0.7 |
| By GSE [nT] |
5.0 ± 0.2 |
14.9 ± 0.7 |
| Bz GSE [nT] |
6.7 ± 0.3 |
11.8 ± 0.8 |
Plasma Beta
|
0.224 ± 0.211
|
0.295 ± 0.276
|
Sound Speed [km/s]
|
36.77 ± 2.13
|
53.79 ± 2.28
|
Alfven Speed [km/s]
|
60.54 ± 2.50
|
77.16 ± 3.85
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.617 ± 0.108 |
-0.306 ± 0.124 |
0.725 ± 0.559 |
46.50 ± 8.04 |
206.40 ± 10.77 |
| VC |
-0.987 ± 0.005 |
-0.159 ± 0.032 |
0.011 ± 0.011 |
0.60 ± 2.11 |
189.13 ± 1.87 |
| MX1 |
-0.980 ± 0.014 |
-0.005 ± 0.049 |
0.197 ± 0.195 |
11.38 ± 4.07 |
180.27 ± 2.88 |
| MX2 |
-0.989 ± 0.008 |
0.020 ± 0.057 |
0.146 ± 0.145 |
8.41 ± 3.05 |
178.82 ± 3.33 |
| MX3 |
-0.993 ± 0.005 |
0.038 ± 0.063 |
0.110 ± 0.110 |
6.32 ± 2.54 |
177.81 ± 3.65 |
| RH08 |
-0.995 ± 0.001 |
0.009 ± 0.000 |
0.095 ± 0.095 |
5.45 ± 0.64 |
179.50 ± 0.00 |
| RH09 |
-0.989 ± 0.010 |
0.043 ± 0.070 |
0.140 ± 0.139 |
8.03 ± 4.02 |
177.49 ± 4.07 |
| RH10 |
-0.988 ± 0.011 |
0.043 ± 0.070 |
0.151 ± 0.150 |
8.68 ± 4.02 |
177.49 ± 4.07 |
| Average |
-0.942 |
-0.039 |
0.197 |
11.921 |
183.364 |
| Median |
-0.988 |
0.020 |
0.146 |
8.413 |
179.499 |
| Deviation |
0.132 |
0.127 |
0.220 |
14.320 |
10.062 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
56.4 ± 1.8 |
346.8 ± 0.8 |
2.95 ± 0.33 |
| VC |
79.1 ± 3.0 |
544.2 ± 1.1 |
2.95 ± 0.33 |
| MX1 |
65.2 ± 3.0 |
535.9 ± 1.0 |
2.95 ± 0.33 |
| MX2 |
66.6 ± 3.0 |
539.9 ± 1.0 |
2.95 ± 0.33 |
| MX3 |
67.6 ± 3.1 |
541.7 ± 1.0 |
2.95 ± 0.33 |
| RH08 |
69.3 ± 3.1 |
543.8 ± 1.0 |
2.95 ± 0.33 |
| RH09 |
66.1 ± 3.1 |
539.3 ± 1.0 |
2.95 ± 0.33 |
| RH10 |
65.6 ± 3.1 |
538.4 ± 8.4 |
2.95 ± 0.33 |
| Average |
67.0 |
516.2 |
2.95 |
| Median |
66.6 |
539.9 |
2.95 |
| Deviation |
6.2 |
68.5 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
106.1 ± 1.4 |
18.0 ± 0.7 |
33.5 ± 1.4 |
68.6 ± 1.6 |
5.92 ± 0.28 |
1.55 ± 0.05 |
| VC |
158.8 ± 1.7 |
6.0 ± 0.2 |
11.5 ± 0.5 |
70.6 ± 1.6 |
26.61 ± 0.82 |
2.25 ± 0.07 |
| MX1 |
154.1 ± 1.7 |
13.4 ± 0.5 |
25.4 ± 1.0 |
69.6 ± 1.6 |
11.50 ± 0.40 |
2.22 ± 0.07 |
| MX2 |
154.8 ± 1.8 |
12.7 ± 0.5 |
24.1 ± 1.0 |
69.7 ± 1.6 |
12.22 ± 0.42 |
2.22 ± 0.07 |
| MX3 |
154.9 ± 1.8 |
12.1 ± 0.4 |
23.1 ± 1.0 |
69.8 ± 1.6 |
12.79 ± 0.43 |
2.22 ± 0.07 |
| RH8 |
156.0 ± 1.8 |
11.2 ± 0.4 |
21.4 ± 0.9 |
70.0 ± 1.6 |
13.92 ± 0.46 |
2.23 ± 0.07 |
| RH9 |
154.1 ± 1.8 |
12.9 ± 0.5 |
24.6 ± 1.0 |
69.7 ± 1.6 |
11.92 ± 0.41 |
2.21 ± 0.07 |
| RH10 |
153.9 ± 1.8 |
13.2 ± 0.5 |
25.0 ± 1.0 |
69.6 ± 1.6 |
11.66 ± 0.40 |
2.21 ± 0.07 |
| Average |
149.1 |
12.4 |
23.6 |
69.7 |
13.3 |
2.1 |
| Median |
154.8 |
12.9 |
24.6 |
69.7 |
12.2 |
2.2 |
| Deviation |
17.5 |
3.3 |
6.1 |
0.6 |
5.9 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
36.2 ± 3.2 |
25.3 ± 0.7 |
42.7 ± 2.1 |
90.6 ± 3.1 |
1.43 ± 0.10 |
0.40 ± 0.03 |
| VC |
53.8 ± 3.1 |
8.4 ± 0.2 |
14.6 ± 0.7 |
93.7 ± 3.1 |
6.41 ± 0.32 |
0.57 ± 0.03 |
| MX1 |
52.2 ± 3.3 |
18.9 ± 0.5 |
32.4 ± 1.6 |
92.2 ± 3.1 |
2.76 ± 0.14 |
0.57 ± 0.03 |
| MX2 |
52.4 ± 3.2 |
17.8 ± 0.5 |
30.7 ± 1.5 |
92.4 ± 3.1 |
2.94 ± 0.15 |
0.57 ± 0.03 |
| MX3 |
52.5 ± 3.2 |
17.1 ± 0.5 |
29.4 ± 1.5 |
92.5 ± 3.1 |
3.07 ± 0.16 |
0.57 ± 0.02 |
| RH8 |
52.9 ± 3.2 |
15.8 ± 0.4 |
27.2 ± 1.4 |
92.8 ± 3.1 |
3.35 ± 0.17 |
0.57 ± 0.03 |
| RH9 |
52.2 ± 3.2 |
18.2 ± 0.5 |
31.3 ± 1.6 |
92.3 ± 3.1 |
2.86 ± 0.15 |
0.56 ± 0.02 |
| RH10 |
52.1 ± 3.2 |
18.6 ± 0.5 |
31.9 ± 1.6 |
92.3 ± 3.1 |
2.80 ± 0.15 |
0.56 ± 0.03 |
| Average |
50.5 |
17.5 |
30.0 |
92.4 |
3.2 |
0.5 |
| Median |
52.4 |
18.2 |
31.3 |
92.4 |
2.9 |
0.6 |
| Deviation |
5.8 |
4.6 |
7.7 |
0.9 |
1.4 |
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)
| 
