Database: Ace Shock Analysis
Event ID: 20051271818
Observation time: 05/07/2005 127.76286 1818 [UT]
|
|
General
Information (About, Top)
| Year |
2005 |
| Fractional day of year |
127.762856 |
| Arrival time of shock [seconds of day] |
65910.7 ± 50.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
248.326 |
| Y GSE location of spacecraft [Re] |
15.234 |
| Z GSE location of spacecraft [Re] |
-15.741 |
| Upstream plasma points selected for analysis |
0011 |
| Upstream field points selected for analysis |
0721 |
| Downstream plasma points selected for analysis |
0011
|
| Downstream field points selected for analysis |
0682 |
| Minimum chisq/dof for RH8,RH9,RH10 |
8.38, 15.12, 15.28 |
Event added to database
|
Fri Oct 10 15:46:49 2014
|
Event last processed
|
Wed Oct 15 11:31:12 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
110.636 ± 17.035
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-375.6 ± 1.4 |
-403.1 ± 1.8 |
| Vy GSE [km/s] |
-44.5 ± 2.0 |
-53.4 ± 2.0 |
| Vz GSE [km/s] |
-8.3 ± 3.3 |
-5.5 ± 2.5 |
| Wi [km/s] |
26.7 ± 1.4 |
30.7 ± 0.5 |
| We [km/s] |
844.0 ± 45.6 |
972.4 ± 15.4 |
| Ni [n/cc] |
19.0 ± 1.4 |
33.7 ± 3.3 |
| Bx GSE [nT] |
2.1 ± 0.9 |
3.0 ± 1.3 |
| By GSE [nT] |
6.3 ± 1.0 |
9.4 ± 0.3 |
| Bz GSE [nT] |
-8.4 ± 0.7 |
-12.8 ± 0.8 |
Plasma Beta
|
0.247 ± 0.229
|
0.254 ± 0.266
|
Sound Speed [km/s]
|
34.46 ± 1.86
|
39.70 ± 0.63
|
Alfven Speed [km/s]
|
54.20 ± 3.34
|
61.29 ± 4.04
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.984 ± 0.157 |
0.179 ± 0.863 |
0.026 ± 0.026 |
1.47 ± 29.48 |
169.71 ± 50.25 |
| VC |
-0.948 ± 0.028 |
-0.304 ± 0.077 |
0.095 ± 0.095 |
5.48 ± 7.57 |
197.78 ± 4.67 |
| MX1 |
-0.968 ± 0.051 |
-0.051 ± 0.220 |
-0.247 ± 0.242 |
-14.32 ± 11.56 |
183.04 ± 13.04 |
| MX2 |
-0.968 ± 0.051 |
-0.061 ± 0.196 |
-0.243 ± 0.238 |
-14.07 ± 11.75 |
183.61 ± 11.61 |
| MX3 |
-0.970 ± 0.053 |
-0.081 ± 0.186 |
-0.231 ± 0.227 |
-13.36 ± 12.60 |
184.80 ± 10.96 |
| RH08 |
-0.343 ± 0.020 |
0.797 ± 0.009 |
0.497 ± 0.451 |
29.82 ± 0.40 |
113.31 ± 1.42 |
| RH09 |
-0.986 ± 0.011 |
-0.165 ± 0.067 |
0.028 ± 0.028 |
1.60 ± 4.06 |
189.53 ± 3.91 |
| RH10 |
-0.986 ± 0.011 |
-0.165 ± 0.067 |
0.028 ± 0.028 |
1.60 ± 4.06 |
189.53 ± 3.91 |
| Average |
-0.894 |
0.018 |
-0.006 |
-0.223 |
176.413 |
| Median |
-0.968 |
-0.061 |
0.028 |
1.601 |
184.796 |
| Deviation |
0.223 |
0.343 |
0.248 |
14.673 |
26.707 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
83.7 ± 6.0 |
420.5 ± 1.1 |
1.78 ± 0.22 |
| VC |
64.0 ± 4.2 |
435.2 ± 1.4 |
1.78 ± 0.22 |
| MX1 |
88.4 ± 4.2 |
428.7 ± 1.3 |
1.78 ± 0.22 |
| MX2 |
87.9 ± 4.2 |
429.5 ± 1.4 |
1.78 ± 0.22 |
| MX3 |
86.7 ± 4.1 |
431.3 ± 1.4 |
1.78 ± 0.22 |
| RH08 |
89.4 ± 7.2 |
98.5 ± 0.5 |
1.78 ± 0.22 |
| RH09 |
71.8 ± 4.7 |
443.7 ± 1.4 |
1.78 ± 0.22 |
| RH10 |
71.8 ± 4.7 |
443.7 ± 14.9 |
1.78 ± 0.22 |
| Average |
80.5 |
391.4 |
1.78 |
| Median |
86.7 |
431.3 |
1.78 |
| Deviation |
9.8 |
118.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
59.2 ± 1.5 |
3.2 ± 0.1 |
5.9 ± 0.4 |
64.2 ± 2.7 |
18.70 ± 0.90 |
0.92 ± 0.04 |
| VC |
66.4 ± 1.5 |
13.0 ± 0.5 |
23.8 ± 1.5 |
63.0 ± 2.7 |
5.12 ± 0.21 |
1.06 ± 0.03 |
| MX1 |
60.9 ± 1.3 |
0.8 ± 0.0 |
1.5 ± 0.1 |
64.3 ± 2.7 |
76.85 ± 3.26 |
0.95 ± 0.04 |
| MX2 |
61.1 ± 1.3 |
1.1 ± 0.0 |
2.0 ± 0.1 |
64.3 ± 2.7 |
57.98 ± 2.44 |
0.95 ± 0.04 |
| MX3 |
61.5 ± 1.3 |
1.7 ± 0.1 |
3.1 ± 0.2 |
64.3 ± 2.7 |
36.70 ± 1.53 |
0.96 ± 0.04 |
| RH8 |
9.2 ± 1.9 |
0.3 ± 0.0 |
0.5 ± 0.0 |
64.3 ± 2.7 |
31.46 ± 7.11 |
0.14 ± 0.03 |
| RH9 |
66.3 ± 1.4 |
9.2 ± 0.3 |
16.9 ± 1.0 |
63.6 ± 2.7 |
7.25 ± 0.30 |
1.04 ± 0.04 |
| RH10 |
66.3 ± 1.4 |
9.2 ± 0.3 |
16.9 ± 1.0 |
63.6 ± 2.7 |
7.25 ± 0.30 |
1.04 ± 0.04 |
| Average |
56.3 |
4.8 |
8.8 |
63.9 |
30.2 |
0.9 |
| Median |
61.5 |
3.2 |
5.9 |
64.3 |
31.5 |
1.0 |
| Deviation |
19.3 |
4.9 |
9.0 |
0.5 |
26.2 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
33.7 ± 1.5 |
3.6 ± 0.1 |
6.7 ± 0.4 |
73.0 ± 3.6 |
9.27 ± 0.58 |
0.46 ± 0.04 |
| VC |
37.4 ± 2.1 |
14.9 ± 0.4 |
26.9 ± 1.8 |
71.5 ± 3.6 |
2.51 ± 0.19 |
0.52 ± 0.05 |
| MX1 |
34.5 ± 2.1 |
0.9 ± 0.0 |
1.7 ± 0.1 |
73.0 ± 3.6 |
37.98 ± 3.07 |
0.47 ± 0.05 |
| MX2 |
34.6 ± 2.1 |
1.2 ± 0.0 |
2.2 ± 0.1 |
73.0 ± 3.6 |
28.64 ± 2.31 |
0.48 ± 0.05 |
| MX3 |
34.8 ± 2.1 |
1.9 ± 0.1 |
3.5 ± 0.2 |
73.0 ± 3.6 |
18.10 ± 1.47 |
0.48 ± 0.05 |
| RH8 |
5.4 ± 2.1 |
0.3 ± 0.0 |
0.6 ± 0.0 |
73.0 ± 3.6 |
15.99 ± 5.77 |
0.07 ± 0.03 |
| RH9 |
37.6 ± 2.0 |
10.5 ± 0.3 |
19.1 ± 1.3 |
72.3 ± 3.6 |
3.59 ± 0.26 |
0.52 ± 0.05 |
| RH10 |
37.6 ± 2.0 |
10.5 ± 0.3 |
19.1 ± 1.3 |
72.3 ± 3.6 |
3.59 ± 0.26 |
0.52 ± 0.05 |
| Average |
31.9 |
5.5 |
10.0 |
72.7 |
15.0 |
0.4 |
| Median |
34.8 |
3.6 |
6.7 |
73.0 |
16.0 |
0.5 |
| Deviation |
10.8 |
5.6 |
10.2 |
0.6 |
13.0 |
0.2 |
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)
| 
