Database: Ace Shock Analysis
Event ID: 19993171213
Observation time: 11/13/1999 317.50907 1213 [UT]
|
|
General
Information (About, Top)
| Year |
1999 |
| Fractional day of year |
317.509074 |
| Arrival time of shock [seconds of day] |
43984.0 ± 16.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
0.034 |
| Y GSE location of spacecraft [Re] |
0.001 |
| Z GSE location of spacecraft [Re] |
-0.003 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0029 |
| Downstream plasma points selected for analysis |
0011
|
| Downstream field points selected for analysis |
0045 |
| Minimum chisq/dof for RH8,RH9,RH10 |
6.95, 11.50, 11.79 |
Event added to database
|
Sat Apr 30 21:44:57 2005
|
Event last processed
|
Wed Oct 15 15:27:55 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] |
-403.8 ± 1.7 |
-453.9 ± 1.9 |
| Vy GSE [km/s] |
-29.3 ± 2.5 |
-12.3 ± 6.4 |
| Vz GSE [km/s] |
-5.7 ± 1.7 |
5.4 ± 2.5 |
| Wi [km/s] |
14.0 ± 0.4 |
19.5 ± 1.0 |
| We [km/s] |
441.8 ± 11.1 |
617.3 ± 32.9 |
| Ni [n/cc] |
3.4 ± 0.2 |
7.1 ± 0.4 |
| Bx GSE [nT] |
0.2 ± 0.1 |
0.4 ± 0.2 |
| By GSE [nT] |
2.6 ± 0.2 |
5.4 ± 0.4 |
| Bz GSE [nT] |
-5.8 ± 0.1 |
-9.5 ± 0.4 |
Plasma Beta
|
0.036 ± 0.037
|
0.051 ± 0.052
|
Sound Speed [km/s]
|
18.04 ± 0.42
|
25.07 ± 1.26
|
Alfven Speed [km/s]
|
73.51 ± 1.83
|
86.36 ± 4.29
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.909 ± 0.477 |
-0.384 ± 1.108 |
-0.164 ± 0.162 |
-9.43 ± 35.25 |
202.93 ± 69.81 |
| VC |
-0.929 ± 0.036 |
0.309 ± 0.105 |
0.204 ± 0.201 |
11.78 ± 2.96 |
161.60 ± 6.47 |
| MX1 |
-0.929 ± 0.036 |
0.316 ± 0.098 |
0.191 ± 0.188 |
10.98 ± 4.35 |
161.22 ± 6.06 |
| MX2 |
-0.929 ± 0.036 |
0.317 ± 0.098 |
0.191 ± 0.189 |
11.01 ± 4.26 |
161.19 ± 6.02 |
| MX3 |
-0.929 ± 0.036 |
0.317 ± 0.097 |
0.192 ± 0.189 |
11.05 ± 4.16 |
161.14 ± 5.99 |
| RH08 |
-0.993 ± 0.002 |
0.113 ± 0.015 |
0.028 ± 0.028 |
1.60 ± 0.66 |
173.48 ± 0.84 |
| RH09 |
-0.984 ± 0.012 |
0.165 ± 0.066 |
0.073 ± 0.072 |
4.16 ± 3.68 |
170.47 ± 3.87 |
| RH10 |
-0.987 ± 0.011 |
0.148 ± 0.067 |
0.061 ± 0.061 |
3.52 ± 3.77 |
171.48 ± 3.90 |
| Average |
-0.949 |
0.163 |
0.097 |
5.587 |
170.439 |
| Median |
-0.929 |
0.309 |
0.191 |
10.984 |
170.474 |
| Deviation |
0.033 |
0.237 |
0.127 |
7.315 |
14.147 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
88.0 ± 1.1 |
450.1 ± 5.6 |
2.08 ± 0.09 |
| VC |
85.3 ± 0.8 |
468.4 ± 11.6 |
2.08 ± 0.09 |
| MX1 |
86.2 ± 0.8 |
468.5 ± 11.7 |
2.08 ± 0.09 |
| MX2 |
86.2 ± 0.8 |
468.4 ± 11.7 |
2.08 ± 0.09 |
| MX3 |
86.1 ± 0.8 |
468.2 ± 11.7 |
2.08 ± 0.09 |
| RH08 |
89.7 ± 0.7 |
497.8 ± 9.5 |
2.08 ± 0.09 |
| RH09 |
88.6 ± 0.7 |
493.5 ± 10.1 |
2.08 ± 0.09 |
| RH10 |
88.8 ± 0.7 |
495.2 ± 9.9 |
2.08 ± 0.09 |
| Average |
87.4 |
476.3 |
2.08 |
| Median |
88.0 |
468.5 |
2.08 |
| Deviation |
1.6 |
17.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
71.0 ± 2.0 |
0.6 ± 0.0 |
2.6 ± 0.1 |
75.7 ± 1.7 |
115.01 ± 2.82 |
0.94 ± 0.04 |
| VC |
103.6 ± 1.8 |
1.4 ± 0.0 |
6.0 ± 0.1 |
75.7 ± 1.7 |
72.14 ± 1.47 |
1.37 ± 0.05 |
| MX1 |
103.6 ± 1.8 |
1.2 ± 0.0 |
4.9 ± 0.1 |
75.7 ± 1.7 |
88.76 ± 1.81 |
1.37 ± 0.05 |
| MX2 |
103.6 ± 1.8 |
1.2 ± 0.0 |
4.9 ± 0.1 |
75.7 ± 1.7 |
88.45 ± 1.80 |
1.37 ± 0.05 |
| MX3 |
103.6 ± 1.8 |
1.2 ± 0.0 |
4.9 ± 0.1 |
75.7 ± 1.7 |
88.04 ± 1.80 |
1.37 ± 0.05 |
| RH8 |
100.2 ± 1.8 |
0.1 ± 0.0 |
0.4 ± 0.0 |
75.7 ± 1.7 |
1195.92 ± 21.96 |
1.33 ± 0.05 |
| RH9 |
101.6 ± 1.7 |
0.4 ± 0.0 |
1.7 ± 0.0 |
75.7 ± 1.7 |
244.93 ± 4.57 |
1.34 ± 0.05 |
| RH10 |
101.3 ± 1.7 |
0.4 ± 0.0 |
1.5 ± 0.0 |
75.7 ± 1.7 |
278.62 ± 5.17 |
1.34 ± 0.05 |
| Average |
98.6 |
0.8 |
3.4 |
75.7 |
271.5 |
1.3 |
| Median |
103.6 |
1.2 |
4.9 |
75.7 |
115.0 |
1.4 |
| Deviation |
11.2 |
0.5 |
2.1 |
0.0 |
381.7 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
33.6 ± 2.2 |
0.8 ± 0.0 |
3.0 ± 0.2 |
89.9 ± 4.2 |
39.77 ± 3.49 |
0.37 ± 0.02 |
| VC |
49.7 ± 3.8 |
2.0 ± 0.1 |
7.1 ± 0.4 |
89.9 ± 4.2 |
25.26 ± 2.13 |
0.56 ± 0.06 |
| MX1 |
49.8 ± 3.8 |
1.6 ± 0.1 |
5.8 ± 0.3 |
89.9 ± 4.2 |
31.09 ± 2.63 |
0.56 ± 0.06 |
| MX2 |
49.8 ± 3.8 |
1.6 ± 0.1 |
5.8 ± 0.3 |
89.9 ± 4.2 |
30.98 ± 2.62 |
0.56 ± 0.06 |
| MX3 |
49.8 ± 3.8 |
1.6 ± 0.1 |
5.8 ± 0.3 |
89.9 ± 4.2 |
30.84 ± 2.61 |
0.56 ± 0.06 |
| RH8 |
48.3 ± 2.5 |
0.1 ± 0.0 |
0.4 ± 0.0 |
89.9 ± 4.2 |
420.60 ± 27.86 |
0.54 ± 0.05 |
| RH9 |
48.9 ± 2.9 |
0.6 ± 0.0 |
2.0 ± 0.1 |
89.9 ± 4.2 |
85.89 ± 6.04 |
0.55 ± 0.05 |
| RH10 |
48.8 ± 2.8 |
0.5 ± 0.0 |
1.8 ± 0.1 |
89.9 ± 4.2 |
97.80 ± 6.74 |
0.54 ± 0.05 |
| Average |
47.3 |
1.1 |
4.0 |
89.9 |
95.3 |
0.5 |
| Median |
49.7 |
1.6 |
5.8 |
89.9 |
39.8 |
0.6 |
| Deviation |
5.6 |
0.7 |
2.4 |
0.0 |
134.3 |
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)
| 
