Database: Ace Shock Analysis
Event ID: 20011011527
Observation time: 04/11/2001 101.64427 1527 [UT]
|
|
General
Information (About, Top)
| Year |
2001 |
| Fractional day of year |
101.644271 |
| Arrival time of shock [seconds of day] |
55665.0 ± 26.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
0.035 |
| 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 |
0026 |
| Minimum chisq/dof for RH8,RH9,RH10 |
12.08, 11.92, 12.38 |
Event added to database
|
Sat Apr 30 21:50:50 2005
|
Event last processed
|
Tue May 3 13:56:06 2005
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.003 ± 0.001
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-620.4 ± 4.6 |
-651.1 ± 17.3 |
| Vy GSE [km/s] |
-37.3 ± 6.9 |
-109.8 ± 19.7 |
| Vz GSE [km/s] |
-1.6 ± 8.0 |
128.5 ± 30.0 |
| Wi [km/s] |
92.4 ± 1.9 |
109.7 ± 4.9 |
| We [km/s] |
2920.6 ± 60.5 |
3469.3 ± 156.5 |
| Ni [n/cc] |
11.8 ± 0.6 |
22.2 ± 2.6 |
| Bx GSE [nT] |
10.8 ± 0.8 |
22.0 ± 6.0 |
| By GSE [nT] |
-4.1 ± 0.7 |
-13.1 ± 3.8 |
| Bz GSE [nT] |
-10.2 ± 1.2 |
-10.2 ± 4.9 |
Plasma Beta
|
0.902 ± 0.917
|
0.707 ± 0.648
|
Sound Speed [km/s]
|
119.23 ± 2.47
|
141.64 ± 6.39
|
Alfven Speed [km/s]
|
97.86 ± 6.37
|
133.23 ± 12.86
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.461 ± 0.318 |
-0.185 ± 0.421 |
0.868 ± 0.522 |
60.23 ± 19.45 |
201.88 ± 50.56 |
| VC |
-0.195 ± 0.095 |
-0.494 ± 0.134 |
0.847 ± 0.537 |
57.94 ± 9.50 |
248.42 ± 9.23 |
| MX1 |
-0.398 ± 0.168 |
-0.357 ± 0.178 |
0.845 ± 0.538 |
57.68 ± 8.10 |
221.95 ± 22.91 |
| MX2 |
-0.377 ± 0.144 |
-0.386 ± 0.143 |
0.842 ± 0.540 |
57.33 ± 6.93 |
225.73 ± 18.64 |
| MX3 |
-0.365 ± 0.133 |
-0.404 ± 0.126 |
0.839 ± 0.542 |
57.01 ± 6.41 |
227.96 ± 16.57 |
| RH08 |
-0.356 ± 0.028 |
-0.377 ± 0.028 |
0.855 ± 0.532 |
58.73 ± 1.60 |
226.63 ± 3.49 |
| RH09 |
-0.913 ± 0.028 |
-0.186 ± 0.061 |
0.363 ± 0.346 |
21.29 ± 4.13 |
191.53 ± 3.81 |
| RH10 |
-0.921 ± 0.027 |
-0.188 ± 0.067 |
0.341 ± 0.327 |
19.92 ± 4.06 |
191.53 ± 4.14 |
| Average |
-0.498 |
-0.322 |
0.725 |
48.768 |
216.954 |
| Median |
-0.377 |
-0.357 |
0.845 |
57.680 |
225.725 |
| Deviation |
0.269 |
0.119 |
0.230 |
17.412 |
20.094 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
32.1 ± 3.1 |
624.4 ± 73.8 |
1.93 ± 0.25 |
| VC |
55.6 ± 3.1 |
501.4 ± 82.7 |
1.93 ± 0.25 |
| MX1 |
42.1 ± 3.0 |
609.5 ± 78.5 |
1.93 ± 0.25 |
| MX2 |
44.2 ± 3.0 |
599.6 ± 79.3 |
1.93 ± 0.25 |
| MX3 |
45.4 ± 3.0 |
593.6 ± 79.7 |
1.93 ± 0.25 |
| RH08 |
44.4 ± 3.0 |
589.6 ± 79.7 |
1.93 ± 0.25 |
| RH09 |
33.8 ± 3.0 |
753.2 ± 49.5 |
1.93 ± 0.25 |
| RH10 |
34.7 ± 3.1 |
754.0 ± 48.9 |
1.93 ± 0.25 |
| Average |
41.5 |
628.2 |
1.93 |
| Median |
44.2 |
609.5 |
1.93 |
| Deviation |
7.8 |
85.7 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
333.0 ± 6.5 |
72.5 ± 3.1 |
82.9 ± 5.4 |
136.3 ± 3.3 |
4.60 ± 0.16 |
2.45 ± 0.06 |
| VC |
363.2 ± 7.7 |
44.6 ± 1.8 |
55.3 ± 3.6 |
147.7 ± 3.9 |
8.15 ± 0.29 |
2.46 ± 0.07 |
| MX1 |
350.8 ± 6.9 |
61.0 ± 2.5 |
72.6 ± 4.7 |
141.8 ± 3.6 |
5.76 ± 0.21 |
2.48 ± 0.07 |
| MX2 |
352.8 ± 7.0 |
58.6 ± 2.4 |
70.2 ± 4.6 |
142.8 ± 3.6 |
6.03 ± 0.22 |
2.47 ± 0.07 |
| MX3 |
353.7 ± 7.0 |
57.1 ± 2.3 |
68.7 ± 4.5 |
143.4 ± 3.7 |
6.20 ± 0.22 |
2.47 ± 0.07 |
| RH8 |
355.8 ± 7.1 |
58.2 ± 2.4 |
69.9 ± 4.5 |
142.9 ± 3.6 |
6.12 ± 0.22 |
2.49 ± 0.07 |
| RH9 |
180.5 ± 4.0 |
70.6 ± 3.0 |
81.3 ± 5.3 |
137.2 ± 3.3 |
2.56 ± 0.12 |
1.32 ± 0.05 |
| RH10 |
176.1 ± 4.0 |
69.5 ± 3.0 |
80.4 ± 5.2 |
137.8 ± 3.4 |
2.54 ± 0.12 |
1.28 ± 0.05 |
| Average |
308.2 |
61.5 |
72.7 |
141.2 |
5.2 |
2.2 |
| Median |
352.8 |
61.0 |
72.6 |
142.8 |
6.0 |
2.5 |
| Deviation |
80.7 |
9.2 |
9.0 |
3.9 |
1.9 |
0.5 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
192.5 ± 23.8 |
93.1 ± 4.8 |
112.8 ± 10.9 |
171.1 ± 4.5 |
2.08 ± 0.31 |
1.13 ± 0.16 |
| VC |
211.1 ± 25.8 |
57.1 ± 2.7 |
75.3 ± 7.3 |
186.3 ± 5.5 |
3.71 ± 0.55 |
1.14 ± 0.16 |
| MX1 |
202.7 ± 24.5 |
78.2 ± 3.8 |
98.9 ± 9.5 |
178.4 ± 5.0 |
2.60 ± 0.38 |
1.14 ± 0.16 |
| MX2 |
203.6 ± 24.7 |
75.0 ± 3.7 |
95.6 ± 9.2 |
179.8 ± 5.1 |
2.72 ± 0.40 |
1.13 ± 0.16 |
| MX3 |
204.0 ± 24.7 |
73.1 ± 3.6 |
93.6 ± 9.0 |
180.6 ± 5.1 |
2.80 ± 0.41 |
1.13 ± 0.16 |
| RH8 |
206.2 ± 24.9 |
74.6 ± 3.6 |
95.1 ± 9.2 |
180.0 ± 5.1 |
2.77 ± 0.40 |
1.15 ± 0.16 |
| RH9 |
91.6 ± 17.1 |
90.6 ± 4.7 |
110.7 ± 10.7 |
172.4 ± 4.6 |
1.01 ± 0.19 |
0.53 ± 0.11 |
| RH10 |
89.8 ± 17.2 |
89.2 ± 4.6 |
109.5 ± 10.6 |
173.2 ± 4.6 |
1.01 ± 0.20 |
0.52 ± 0.11 |
| Average |
175.2 |
78.9 |
98.9 |
177.7 |
2.3 |
1.0 |
| Median |
203.6 |
78.2 |
98.9 |
179.8 |
2.7 |
1.1 |
| Deviation |
52.4 |
11.9 |
12.3 |
5.1 |
0.9 |
0.3 |
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)
| 
