Database: Ace Shock Analysis
Event ID: 20003131320
Observation time: 11/08/2000 313.55579 1320 [UT]
|
|
General
Information (About, Top)
| Year |
2000 |
| Fractional day of year |
313.555787 |
| Arrival time of shock [seconds of day] |
48020.0 ± 30.0 |
| Shock type |
FR |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
0.034 |
| Y GSE location of spacecraft [Re] |
0.003 |
| Z GSE location of spacecraft [Re] |
-0.004 |
| Upstream plasma points selected for analysis |
0012 |
| Upstream field points selected for analysis |
0048 |
| Downstream plasma points selected for analysis |
0010
|
| Downstream field points selected for analysis |
0040 |
| Minimum chisq/dof for RH8,RH9,RH10 |
15.40, 17.07, 17.34 |
Event added to database
|
Sat Apr 30 21:48:18 2005
|
Event last processed
|
Tue May 3 13:40:07 2005
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.009 ± 0.000
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-473.5 ± 1.9 |
-510.7 ± 0.8 |
| Vy GSE [km/s] |
3.6 ± 4.3 |
-5.6 ± 1.3 |
| Vz GSE [km/s] |
-56.0 ± 1.8 |
-22.5 ± 1.3 |
| Wi [km/s] |
44.3 ± 2.2 |
23.8 ± 1.0 |
| We [km/s] |
1399.7 ± 69.9 |
752.8 ± 32.1 |
| Ni [n/cc] |
9.9 ± 0.4 |
5.0 ± 0.2 |
| Bx GSE [nT] |
5.1 ± 0.2 |
3.1 ± 0.1 |
| By GSE [nT] |
-2.0 ± 0.4 |
0.4 ± 0.1 |
| Bz GSE [nT] |
2.9 ± 0.2 |
-0.2 ± 0.1 |
Plasma Beta
|
1.090 ± 1.186
|
0.618 ± 0.627
|
Sound Speed [km/s]
|
57.14 ± 2.85
|
30.73 ± 1.31
|
Alfven Speed [km/s]
|
42.70 ± 2.07
|
30.35 ± 1.05
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.891 ± 0.013 |
-0.336 ± 0.025 |
0.305 ± 0.296 |
17.78 ± 1.70 |
200.66 ± 1.59 |
| VC |
-0.734 ± 0.034 |
-0.182 ± 0.087 |
0.655 ± 0.540 |
40.91 ± 2.33 |
193.91 ± 6.74 |
| MX1 |
-0.870 ± 0.017 |
-0.086 ± 0.067 |
0.486 ± 0.444 |
29.08 ± 1.86 |
185.64 ± 4.40 |
| MX2 |
-0.886 ± 0.018 |
-0.171 ± 0.054 |
0.430 ± 0.402 |
25.49 ± 2.08 |
190.90 ± 3.48 |
| MX3 |
-0.861 ± 0.017 |
-0.053 ± 0.073 |
0.506 ± 0.458 |
30.41 ± 1.90 |
183.49 ± 4.87 |
| RH08 |
-0.908 ± 0.006 |
-0.359 ± 0.013 |
0.218 ± 0.214 |
12.58 ± 0.63 |
201.56 ± 0.82 |
| RH09 |
-0.906 ± 0.024 |
-0.376 ± 0.053 |
0.196 ± 0.193 |
11.28 ± 3.14 |
202.56 ± 3.35 |
| RH10 |
-0.906 ± 0.025 |
-0.376 ± 0.055 |
0.196 ± 0.193 |
11.28 ± 3.28 |
202.56 ± 3.47 |
| Average |
-0.870 |
-0.242 |
0.374 |
22.351 |
195.161 |
| Median |
-0.886 |
-0.182 |
0.430 |
25.492 |
200.662 |
| Deviation |
0.058 |
0.135 |
0.171 |
10.863 |
7.813 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
61.3 ± 1.6 |
356.5 ± 5.4 |
0.50 ± 0.03 |
| VC |
76.2 ± 1.1 |
258.0 ± 6.8 |
0.50 ± 0.03 |
| MX1 |
62.6 ± 1.1 |
334.4 ± 7.3 |
0.50 ± 0.03 |
| MX2 |
61.9 ± 1.2 |
345.3 ± 6.7 |
0.50 ± 0.03 |
| MX3 |
63.0 ± 1.0 |
329.0 ± 7.6 |
0.50 ± 0.03 |
| RH08 |
58.2 ± 1.8 |
371.1 ± 5.1 |
0.50 ± 0.03 |
| RH09 |
58.0 ± 1.8 |
372.0 ± 4.9 |
0.50 ± 0.03 |
| RH10 |
58.0 ± 1.8 |
372.0 ± 4.9 |
0.50 ± 0.03 |
| Average |
62.4 |
342.3 |
0.50 |
| Median |
61.9 |
356.5 |
0.50 |
| Deviation |
6.0 |
38.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-47.1 ± 1.3 |
16.9 ± 0.4 |
20.5 ± 1.0 |
69.4 ± 1.6 |
-2.79 ± 0.08 |
-0.68 ± 0.02 |
| VC |
-52.1 ± 1.6 |
8.2 ± 0.2 |
10.2 ± 0.5 |
70.9 ± 1.6 |
-6.38 ± 0.16 |
-0.73 ± 0.03 |
| MX1 |
-49.9 ± 1.8 |
16.1 ± 0.3 |
19.6 ± 0.9 |
69.6 ± 1.6 |
-3.10 ± 0.09 |
-0.72 ± 0.03 |
| MX2 |
-49.7 ± 1.6 |
16.5 ± 0.4 |
20.1 ± 1.0 |
69.5 ± 1.6 |
-3.01 ± 0.08 |
-0.72 ± 0.03 |
| MX3 |
-50.1 ± 2.0 |
15.9 ± 0.3 |
19.4 ± 0.9 |
69.6 ± 1.6 |
-3.16 ± 0.10 |
-0.72 ± 0.03 |
| RH8 |
-45.2 ± 1.3 |
18.6 ± 0.4 |
22.5 ± 1.1 |
68.9 ± 1.6 |
-2.43 ± 0.07 |
-0.66 ± 0.02 |
| RH9 |
-44.5 ± 1.3 |
18.8 ± 0.4 |
22.6 ± 1.1 |
68.9 ± 1.6 |
-2.37 ± 0.08 |
-0.65 ± 0.02 |
| RH10 |
-44.5 ± 1.3 |
18.8 ± 0.4 |
22.6 ± 1.1 |
68.9 ± 1.6 |
-2.37 ± 0.08 |
-0.65 ± 0.02 |
| Average |
-47.9 |
16.2 |
19.7 |
69.5 |
-3.2 |
-0.7 |
| Median |
-47.1 |
16.9 |
20.5 |
69.5 |
-2.8 |
-0.7 |
| Deviation |
3.0 |
3.5 |
4.1 |
0.7 |
1.3 |
0.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-93.6 ± 0.5 |
10.7 ± 0.3 |
14.6 ± 0.5 |
41.9 ± 1.2 |
-8.76 ± 0.26 |
-2.24 ± 0.07 |
| VC |
-103.0 ± 0.5 |
5.2 ± 0.1 |
7.2 ± 0.2 |
42.9 ± 1.2 |
-19.94 ± 0.57 |
-2.40 ± 0.07 |
| MX1 |
-99.3 ± 0.5 |
10.2 ± 0.3 |
13.9 ± 0.5 |
42.0 ± 1.2 |
-9.74 ± 0.28 |
-2.37 ± 0.07 |
| MX2 |
-98.7 ± 0.5 |
10.5 ± 0.3 |
14.3 ± 0.5 |
41.9 ± 1.2 |
-9.41 ± 0.27 |
-2.36 ± 0.07 |
| MX3 |
-99.5 ± 0.6 |
10.1 ± 0.3 |
13.8 ± 0.5 |
42.0 ± 1.2 |
-9.90 ± 0.28 |
-2.37 ± 0.07 |
| RH8 |
-89.5 ± 0.6 |
11.8 ± 0.3 |
16.0 ± 0.6 |
41.6 ± 1.2 |
-7.58 ± 0.23 |
-2.16 ± 0.06 |
| RH9 |
-88.2 ± 0.6 |
11.9 ± 0.3 |
16.1 ± 0.6 |
41.5 ± 1.2 |
-7.42 ± 0.22 |
-2.13 ± 0.06 |
| RH10 |
-88.2 ± 0.6 |
11.9 ± 0.3 |
16.1 ± 0.6 |
41.5 ± 1.2 |
-7.42 ± 0.22 |
-2.13 ± 0.06 |
| Average |
-95.0 |
10.3 |
14.0 |
41.9 |
-10.0 |
-2.3 |
| Median |
-93.6 |
10.7 |
14.6 |
41.9 |
-8.8 |
-2.2 |
| Deviation |
5.9 |
2.2 |
2.9 |
0.4 |
4.1 |
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)
| 
