Database: Ace Shock Analysis
Event ID: 20002081754
Observation time: 07/26/2000 208.74652 1754 [UT]
|
|
General
Information (About, Top)
| Year |
2000 |
| Fractional day of year |
208.746516 |
| Arrival time of shock [seconds of day] |
64499.0 ± 16.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
0.039 |
| Y GSE location of spacecraft [Re] |
0.001 |
| Z GSE location of spacecraft [Re] |
0.003 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0031 |
| Downstream plasma points selected for analysis |
0006
|
| Downstream field points selected for analysis |
0028 |
| Minimum chisq/dof for RH8,RH9,RH10 |
11.33, 15.91, 16.37 |
Event added to database
|
Sat Apr 30 21:47:02 2005
|
Event last processed
|
Wed Oct 15 16:35:19 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.010 ± 0.000
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-356.4 ± 1.3 |
-390.1 ± 1.2 |
| Vy GSE [km/s] |
3.2 ± 0.9 |
9.4 ± 2.4 |
| Vz GSE [km/s] |
-9.5 ± 1.0 |
-4.0 ± 2.2 |
| Wi [km/s] |
25.4 ± 0.8 |
28.1 ± 0.7 |
| We [km/s] |
801.7 ± 25.3 |
887.6 ± 21.4 |
| Ni [n/cc] |
11.4 ± 0.6 |
23.3 ± 0.8 |
| Bx GSE [nT] |
-1.3 ± 0.3 |
-0.1 ± 0.3 |
| By GSE [nT] |
3.8 ± 0.3 |
4.2 ± 0.5 |
| Bz GSE [nT] |
-2.5 ± 0.4 |
-8.0 ± 0.3 |
Plasma Beta
|
0.722 ± 0.715
|
0.508 ± 0.501
|
Sound Speed [km/s]
|
32.73 ± 1.03
|
36.24 ± 0.89
|
Alfven Speed [km/s]
|
29.91 ± 1.09
|
39.48 ± 1.06
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.479 ± 0.103 |
0.877 ± 0.056 |
-0.027 ± 0.027 |
-1.56 ± 6.17 |
118.66 ± 6.73 |
| VC |
-0.973 ± 0.016 |
0.173 ± 0.066 |
0.155 ± 0.154 |
8.93 ± 3.96 |
169.89 ± 3.89 |
| MX1 |
-0.842 ± 0.067 |
0.519 ± 0.108 |
-0.146 ± 0.145 |
-8.38 ± 4.52 |
148.35 ± 7.30 |
| MX2 |
-0.922 ± 0.025 |
0.343 ± 0.057 |
-0.179 ± 0.177 |
-10.30 ± 4.72 |
159.61 ± 3.51 |
| MX3 |
-0.954 ± 0.021 |
0.227 ± 0.061 |
-0.197 ± 0.195 |
-11.37 ± 4.66 |
166.63 ± 3.68 |
| RH08 |
-0.989 ± 0.002 |
0.043 ± 0.017 |
-0.140 ± 0.139 |
-8.03 ± 0.82 |
177.49 ± 0.97 |
| RH09 |
-0.974 ± 0.015 |
-0.060 ± 0.070 |
-0.218 ± 0.214 |
-12.58 ± 3.90 |
183.51 ± 4.14 |
| RH10 |
-0.974 ± 0.016 |
-0.060 ± 0.071 |
-0.218 ± 0.214 |
-12.58 ± 3.96 |
183.51 ± 4.15 |
| Average |
-0.888 |
0.258 |
-0.121 |
-6.984 |
163.457 |
| Median |
-0.954 |
0.227 |
-0.146 |
-8.377 |
169.893 |
| Deviation |
0.172 |
0.320 |
0.128 |
7.356 |
21.720 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
32.4 ± 5.2 |
217.0 ± 0.8 |
2.03 ± 0.08 |
| VC |
70.9 ± 3.8 |
414.2 ± 0.7 |
2.03 ± 0.08 |
| MX1 |
43.5 ± 3.7 |
365.0 ± 0.8 |
2.03 ± 0.08 |
| MX2 |
51.3 ± 3.7 |
395.7 ± 0.8 |
2.03 ± 0.08 |
| MX3 |
56.4 ± 3.7 |
407.4 ± 0.8 |
2.03 ± 0.08 |
| RH08 |
67.2 ± 3.7 |
419.8 ± 0.8 |
2.03 ± 0.08 |
| RH09 |
69.9 ± 3.8 |
411.9 ± 0.7 |
2.03 ± 0.08 |
| RH10 |
69.9 ± 3.8 |
411.9 ± 5.0 |
2.03 ± 0.08 |
| Average |
57.7 |
380.4 |
2.03 |
| Median |
67.2 |
411.9 |
2.03 |
| Deviation |
14.4 |
68.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
43.3 ± 0.7 |
21.2 ± 0.4 |
25.2 ± 0.9 |
39.0 ± 0.8 |
2.04 ± 0.06 |
1.11 ± 0.03 |
| VC |
68.6 ± 1.0 |
7.3 ± 0.1 |
9.8 ± 0.4 |
43.7 ± 0.8 |
9.39 ± 0.24 |
1.57 ± 0.04 |
| MX1 |
61.9 ± 1.1 |
17.4 ± 0.4 |
21.7 ± 0.8 |
40.8 ± 0.8 |
3.56 ± 0.11 |
1.52 ± 0.04 |
| MX2 |
64.2 ± 1.2 |
14.6 ± 0.3 |
18.7 ± 0.7 |
41.9 ± 0.8 |
4.40 ± 0.13 |
1.53 ± 0.05 |
| MX3 |
64.8 ± 1.3 |
12.7 ± 0.3 |
16.5 ± 0.6 |
42.5 ± 0.8 |
5.10 ± 0.16 |
1.53 ± 0.05 |
| RH8 |
65.7 ± 1.3 |
8.7 ± 0.2 |
11.6 ± 0.4 |
43.5 ± 0.8 |
7.56 ± 0.23 |
1.51 ± 0.05 |
| RH9 |
62.7 ± 1.4 |
7.7 ± 0.2 |
10.3 ± 0.4 |
43.7 ± 0.8 |
8.16 ± 0.26 |
1.44 ± 0.05 |
| RH10 |
62.7 ± 1.4 |
7.7 ± 0.2 |
10.3 ± 0.4 |
43.7 ± 0.8 |
8.16 ± 0.26 |
1.44 ± 0.05 |
| Average |
61.8 |
12.2 |
15.5 |
42.3 |
6.0 |
1.5 |
| Median |
64.2 |
12.7 |
16.5 |
43.5 |
7.6 |
1.5 |
| Deviation |
7.8 |
5.2 |
5.9 |
1.7 |
2.6 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
22.0 ± 2.5 |
25.6 ± 0.2 |
33.3 ± 0.9 |
47.1 ± 0.5 |
0.86 ± 0.10 |
0.47 ± 0.05 |
| VC |
33.9 ± 1.2 |
8.8 ± 0.1 |
12.9 ± 0.3 |
52.9 ± 0.6 |
3.84 ± 0.13 |
0.64 ± 0.02 |
| MX1 |
31.2 ± 2.2 |
21.0 ± 0.2 |
28.6 ± 0.8 |
49.3 ± 0.5 |
1.48 ± 0.10 |
0.63 ± 0.04 |
| MX2 |
32.0 ± 1.9 |
17.7 ± 0.2 |
24.7 ± 0.7 |
50.6 ± 0.5 |
1.81 ± 0.11 |
0.63 ± 0.04 |
| MX3 |
32.3 ± 1.8 |
15.4 ± 0.1 |
21.8 ± 0.6 |
51.3 ± 0.6 |
2.10 ± 0.11 |
0.63 ± 0.04 |
| RH8 |
32.9 ± 1.4 |
10.5 ± 0.1 |
15.3 ± 0.4 |
52.6 ± 0.6 |
3.12 ± 0.13 |
0.63 ± 0.03 |
| RH9 |
31.4 ± 1.4 |
9.3 ± 0.1 |
13.6 ± 0.4 |
52.8 ± 0.6 |
3.38 ± 0.14 |
0.60 ± 0.03 |
| RH10 |
31.4 ± 1.4 |
9.3 ± 0.1 |
13.6 ± 0.4 |
52.8 ± 0.6 |
3.38 ± 0.14 |
0.60 ± 0.03 |
| Average |
30.9 |
14.7 |
20.5 |
51.2 |
2.5 |
0.6 |
| Median |
32.0 |
15.4 |
21.8 |
52.6 |
3.1 |
0.6 |
| Deviation |
3.7 |
6.3 |
7.9 |
2.1 |
1.1 |
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)
| 
