Database: Ace Shock Analysis
Event ID: 20011011314
Observation time: 04/11/2001 101.55186 1314 [UT]
|
|
General
Information (About, Top)
| Year |
2001 |
| Fractional day of year |
101.551863 |
| Arrival time of shock [seconds of day] |
47681.0 ± 20.0 |
| 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 |
0014 |
| Upstream field points selected for analysis |
0057 |
| Downstream plasma points selected for analysis |
0011
|
| Downstream field points selected for analysis |
0044 |
| Minimum chisq/dof for RH8,RH9,RH10 |
8.89, 10.27, 10.44 |
Event added to database
|
Sat Apr 30 21:50:47 2005
|
Event last processed
|
Tue May 3 13:55:18 2005
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.005 ± 0.000
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-504.2 ± 6.3 |
-564.1 ± 13.0 |
| Vy GSE [km/s] |
-1.9 ± 15.9 |
-74.3 ± 13.1 |
| Vz GSE [km/s] |
-8.9 ± 14.9 |
61.3 ± 8.7 |
| Wi [km/s] |
54.6 ± 4.3 |
75.7 ± 7.9 |
| We [km/s] |
1728.1 ± 136.8 |
2395.3 ± 248.4 |
| Ni [n/cc] |
3.2 ± 0.4 |
8.1 ± 1.1 |
| Bx GSE [nT] |
6.0 ± 0.4 |
11.2 ± 0.3 |
| By GSE [nT] |
-0.6 ± 1.0 |
-3.0 ± 1.4 |
| Bz GSE [nT] |
-0.9 ± 1.3 |
2.5 ± 2.1 |
Plasma Beta
|
0.507 ± 0.488
|
0.689 ± 0.697
|
Sound Speed [km/s]
|
70.55 ± 5.58
|
97.79 ± 10.14
|
Alfven Speed [km/s]
|
77.15 ± 5.29
|
93.38 ± 9.05
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.772 ± 0.251 |
-0.221 ± 0.435 |
0.596 ± 0.513 |
36.56 ± 21.90 |
195.98 ± 31.91 |
| VC |
-0.522 ± 0.132 |
-0.614 ± 0.121 |
0.592 ± 0.511 |
36.31 ± 8.26 |
229.65 ± 11.14 |
| MX1 |
-0.631 ± 0.180 |
-0.541 ± 0.201 |
0.556 ± 0.490 |
33.78 ± 10.24 |
220.60 ± 17.27 |
| MX2 |
-0.603 ± 0.139 |
-0.589 ± 0.141 |
0.538 ± 0.479 |
32.55 ± 7.77 |
224.31 ± 12.48 |
| MX3 |
-0.597 ± 0.135 |
-0.611 ± 0.133 |
0.520 ± 0.467 |
31.31 ± 8.49 |
225.63 ± 11.61 |
| RH08 |
-0.917 ± 0.004 |
-0.326 ± 0.009 |
0.229 ± 0.225 |
13.24 ± 0.73 |
199.55 ± 0.54 |
| RH09 |
-0.935 ± 0.025 |
-0.296 ± 0.069 |
0.196 ± 0.193 |
11.28 ± 3.72 |
197.55 ± 4.20 |
| RH10 |
-0.940 ± 0.024 |
-0.279 ± 0.067 |
0.196 ± 0.193 |
11.28 ± 3.88 |
196.55 ± 4.07 |
| Average |
-0.740 |
-0.435 |
0.428 |
25.788 |
211.226 |
| Median |
-0.631 |
-0.326 |
0.538 |
32.546 |
220.597 |
| Deviation |
0.173 |
0.169 |
0.185 |
11.622 |
15.011 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
35.0 ± 12.3 |
560.5 ± 27.8 |
2.68 ± 0.56 |
| VC |
57.4 ± 12.3 |
454.0 ± 34.0 |
2.68 ± 0.56 |
| MX1 |
49.7 ± 12.4 |
508.4 ± 32.3 |
2.68 ± 0.56 |
| MX2 |
52.3 ± 12.1 |
495.5 ± 32.9 |
2.68 ± 0.56 |
| MX3 |
53.0 ± 12.0 |
492.5 ± 33.0 |
2.68 ± 0.56 |
| RH08 |
27.7 ± 8.7 |
621.7 ± 25.4 |
2.68 ± 0.56 |
| RH09 |
25.9 ± 8.4 |
625.3 ± 24.7 |
2.68 ± 0.56 |
| RH10 |
25.1 ± 8.4 |
626.2 ± 24.5 |
2.68 ± 0.56 |
| Average |
40.7 |
548.0 |
2.68 |
| Median |
49.7 |
560.5 |
2.68 |
| Deviation |
13.7 |
69.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
176.0 ± 11.0 |
47.9 ± 3.1 |
63.2 ± 4.3 |
93.0 ± 5.9 |
3.69 ± 0.37 |
1.90 ± 0.19 |
| VC |
195.0 ± 15.0 |
29.2 ± 1.9 |
41.6 ± 2.9 |
100.5 ± 6.3 |
6.72 ± 0.73 |
1.95 ± 0.21 |
| MX1 |
194.1 ± 13.9 |
35.8 ± 2.3 |
49.9 ± 3.4 |
98.3 ± 6.2 |
5.45 ± 0.58 |
1.98 ± 0.21 |
| MX2 |
195.0 ± 14.3 |
33.6 ± 2.1 |
47.2 ± 3.2 |
99.1 ± 6.3 |
5.84 ± 0.62 |
1.98 ± 0.21 |
| MX3 |
194.7 ± 14.4 |
32.9 ± 2.1 |
46.4 ± 3.2 |
99.3 ± 6.3 |
5.95 ± 0.64 |
1.97 ± 0.21 |
| RH8 |
160.6 ± 9.5 |
53.5 ± 3.4 |
68.3 ± 4.7 |
89.9 ± 5.7 |
3.02 ± 0.32 |
1.80 ± 0.19 |
| RH9 |
155.0 ± 9.1 |
54.9 ± 3.5 |
69.4 ± 4.8 |
89.0 ± 5.6 |
2.84 ± 0.30 |
1.75 ± 0.18 |
| RH10 |
153.4 ± 8.9 |
55.6 ± 3.6 |
69.9 ± 4.8 |
88.6 ± 5.6 |
2.78 ± 0.29 |
1.74 ± 0.18 |
| Average |
178.0 |
42.9 |
57.0 |
94.7 |
4.5 |
1.9 |
| Median |
194.1 |
47.9 |
63.2 |
98.3 |
5.5 |
2.0 |
| Deviation |
19.1 |
11.1 |
11.8 |
5.1 |
1.6 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
72.0 ± 8.5 |
61.5 ± 3.3 |
76.5 ± 7.4 |
120.9 ± 7.0 |
1.18 ± 0.19 |
0.60 ± 0.10 |
| VC |
77.8 ± 6.8 |
37.5 ± 2.0 |
50.4 ± 4.9 |
130.3 ± 7.4 |
2.08 ± 0.27 |
0.60 ± 0.08 |
| MX1 |
78.2 ± 6.9 |
46.0 ± 2.5 |
60.4 ± 5.9 |
127.6 ± 7.3 |
1.71 ± 0.23 |
0.62 ± 0.09 |
| MX2 |
78.5 ± 7.0 |
43.2 ± 2.3 |
57.1 ± 5.5 |
128.6 ± 7.3 |
1.83 ± 0.24 |
0.61 ± 0.08 |
| MX3 |
78.3 ± 7.1 |
42.3 ± 2.3 |
56.1 ± 5.4 |
128.9 ± 7.3 |
1.86 ± 0.24 |
0.61 ± 0.08 |
| RH8 |
66.0 ± 10.0 |
68.7 ± 3.7 |
82.7 ± 8.0 |
117.0 ± 6.8 |
0.97 ± 0.18 |
0.57 ± 0.11 |
| RH9 |
63.9 ± 10.4 |
70.4 ± 3.8 |
84.0 ± 8.1 |
115.9 ± 6.8 |
0.91 ± 0.18 |
0.56 ± 0.11 |
| RH10 |
63.2 ± 10.5 |
71.2 ± 3.8 |
84.6 ± 8.2 |
115.4 ± 6.8 |
0.89 ± 0.18 |
0.55 ± 0.11 |
| Average |
72.2 |
55.1 |
69.0 |
123.1 |
1.4 |
0.6 |
| Median |
77.8 |
61.5 |
76.5 |
127.6 |
1.7 |
0.6 |
| Deviation |
6.9 |
14.2 |
14.3 |
6.4 |
0.5 |
0.0 |
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)
| 
