Database: Ace Shock Analysis
Event ID: 20002080253
Observation time: 07/26/2000 208.12022 0253 [UT]
|
|
General
Information (About, Top)
| Year |
2000 |
| Fractional day of year |
208.120220 |
| Arrival time of shock [seconds of day] |
10387.0 ± 16.0 |
| Shock type |
NN |
| 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 |
0009 |
| Upstream field points selected for analysis |
0038 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0037 |
| Minimum chisq/dof for RH8,RH9,RH10 |
30.99, 66.93, 68.24 |
Event added to database
|
Sat Apr 30 21:46:58 2005
|
Event last processed
|
Wed Oct 15 16:32:58 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.010 ± 0.001
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-334.2 ± 2.9 |
-377.9 ± 2.8 |
| Vy GSE [km/s] |
-9.0 ± 2.6 |
-12.0 ± 2.7 |
| Vz GSE [km/s] |
-17.8 ± 2.6 |
15.6 ± 2.9 |
| Wi [km/s] |
25.7 ± 2.2 |
23.4 ± 1.4 |
| We [km/s] |
813.9 ± 69.4 |
739.4 ± 43.0 |
| Ni [n/cc] |
2.4 ± 0.4 |
5.9 ± 0.7 |
| Bx GSE [nT] |
2.2 ± 0.2 |
1.0 ± 0.3 |
| By GSE [nT] |
-6.9 ± 0.1 |
-9.9 ± 0.3 |
| Bz GSE [nT] |
-3.6 ± 0.3 |
5.5 ± 0.5 |
Plasma Beta
|
0.057 ± 0.055
|
0.055 ± 0.056
|
Sound Speed [km/s]
|
33.13 ± 2.88
|
30.20 ± 1.71
|
Alfven Speed [km/s]
|
109.71 ± 8.74
|
100.61 ± 6.94
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.260 ± 0.023 |
0.924 ± 0.013 |
0.279 ± 0.271 |
16.20 ± 2.49 |
105.72 ± 1.41 |
| VC |
-0.797 ± 0.040 |
-0.044 ± 0.064 |
0.602 ± 0.516 |
37.01 ± 3.76 |
183.17 ± 4.59 |
| MX1 |
-0.660 ± 0.888 |
0.726 ± 0.808 |
0.191 ± 0.189 |
11.02 ± 14.65 |
132.29 ± 70.00 |
| MX2 |
-0.740 ± 0.051 |
0.662 ± 0.057 |
0.120 ± 0.119 |
6.89 ± 2.32 |
138.20 ± 4.44 |
| MX3 |
-0.968 ± 0.023 |
0.244 ± 0.090 |
-0.056 ± 0.056 |
-3.19 ± 2.20 |
165.86 ± 5.34 |
| RH08 |
-0.957 ± 0.002 |
-0.092 ± 0.010 |
-0.274 ± 0.267 |
-15.89 ± 0.38 |
185.52 ± 0.58 |
| RH09 |
-0.978 ± 0.014 |
-0.009 ± 0.071 |
-0.207 ± 0.204 |
-11.93 ± 3.96 |
180.50 ± 4.16 |
| RH10 |
-0.978 ± 0.014 |
-0.009 ± 0.071 |
-0.207 ± 0.204 |
-11.93 ± 3.96 |
180.50 ± 4.16 |
| Average |
-0.793 |
0.300 |
0.056 |
3.523 |
158.969 |
| Median |
-0.797 |
0.244 |
0.120 |
6.889 |
180.501 |
| Deviation |
0.248 |
0.409 |
0.300 |
17.925 |
29.866 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
10.3 ± 2.0 |
104.9 ± 0.6 |
2.47 ± 0.49 |
| VC |
63.2 ± 0.9 |
352.3 ± 2.2 |
2.47 ± 0.49 |
| MX1 |
27.4 ± 1.9 |
267.6 ± 1.1 |
2.47 ± 0.49 |
| MX2 |
34.5 ± 1.8 |
298.7 ± 1.2 |
2.47 ± 0.49 |
| MX3 |
63.0 ± 1.6 |
392.1 ± 1.6 |
2.47 ± 0.49 |
| RH08 |
86.1 ± 1.6 |
383.0 ± 1.4 |
2.47 ± 0.49 |
| RH09 |
79.9 ± 1.6 |
393.8 ± 1.5 |
2.47 ± 0.49 |
| RH10 |
79.9 ± 1.6 |
393.8 ± 12.7 |
2.47 ± 0.49 |
| Average |
55.5 |
323.3 |
2.47 |
| Median |
63.2 |
383.0 |
2.47 |
| Deviation |
28.1 |
100.4 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
31.9 ± 2.1 |
32.5 ± 2.8 |
107.9 ± 8.6 |
109.9 ± 8.7 |
0.99 ± 0.13 |
0.29 ± 0.03 |
| VC |
96.3 ± 2.5 |
14.4 ± 1.1 |
49.4 ± 3.9 |
113.8 ± 8.1 |
6.75 ± 0.61 |
0.85 ± 0.07 |
| MX1 |
57.4 ± 1.4 |
29.1 ± 2.5 |
97.4 ± 7.8 |
110.9 ± 8.5 |
1.99 ± 0.21 |
0.52 ± 0.04 |
| MX2 |
59.9 ± 1.5 |
26.9 ± 2.2 |
90.4 ± 7.2 |
111.4 ± 8.5 |
2.25 ± 0.23 |
0.54 ± 0.05 |
| MX3 |
70.0 ± 2.4 |
14.5 ± 1.1 |
49.8 ± 4.0 |
113.7 ± 8.1 |
4.86 ± 0.47 |
0.62 ± 0.06 |
| RH8 |
57.3 ± 3.2 |
2.2 ± 0.2 |
7.5 ± 0.6 |
114.7 ± 8.0 |
26.65 ± 2.72 |
0.50 ± 0.05 |
| RH9 |
63.1 ± 3.0 |
5.6 ± 0.4 |
19.2 ± 1.5 |
114.5 ± 8.1 |
11.43 ± 1.13 |
0.55 ± 0.05 |
| RH10 |
63.1 ± 3.0 |
5.6 ± 0.4 |
19.2 ± 1.5 |
114.5 ± 8.1 |
11.43 ± 1.13 |
0.55 ± 0.05 |
| Average |
62.4 |
16.3 |
55.1 |
112.9 |
8.3 |
0.6 |
| Median |
63.1 |
14.5 |
49.8 |
113.8 |
6.7 |
0.6 |
| Deviation |
17.7 |
11.8 |
39.2 |
1.9 |
8.5 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
13.6 ± 1.9 |
29.7 ± 1.7 |
99.0 ± 6.8 |
100.8 ± 6.9 |
0.46 ± 0.08 |
0.14 ± 0.02 |
| VC |
41.3 ± 3.3 |
13.1 ± 0.7 |
45.3 ± 3.1 |
104.2 ± 6.8 |
3.16 ± 0.40 |
0.40 ± 0.05 |
| MX1 |
24.0 ± 1.6 |
26.5 ± 1.5 |
89.3 ± 6.2 |
101.6 ± 6.9 |
0.91 ± 0.10 |
0.24 ± 0.02 |
| MX2 |
25.2 ± 1.6 |
24.5 ± 1.4 |
82.9 ± 5.7 |
102.1 ± 6.9 |
1.03 ± 0.12 |
0.25 ± 0.02 |
| MX3 |
30.0 ± 2.3 |
13.2 ± 0.7 |
45.7 ± 3.1 |
104.2 ± 6.8 |
2.28 ± 0.28 |
0.29 ± 0.03 |
| RH8 |
24.2 ± 2.7 |
2.0 ± 0.1 |
6.9 ± 0.5 |
105.0 ± 6.8 |
12.31 ± 1.86 |
0.23 ± 0.03 |
| RH9 |
27.0 ± 2.6 |
5.1 ± 0.3 |
17.6 ± 1.2 |
104.9 ± 6.8 |
5.36 ± 0.75 |
0.26 ± 0.03 |
| RH10 |
27.0 ± 2.6 |
5.1 ± 0.3 |
17.6 ± 1.2 |
104.9 ± 6.8 |
5.36 ± 0.75 |
0.26 ± 0.03 |
| Average |
26.5 |
14.9 |
50.5 |
103.5 |
3.9 |
0.3 |
| Median |
27.0 |
13.2 |
45.7 |
104.2 |
3.2 |
0.3 |
| Deviation |
7.6 |
10.8 |
35.9 |
1.7 |
3.9 |
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)
| 
