Database: Ace Shock Analysis
Event ID: 20010621039
Observation time: 03/03/2001 62.44397 1039 [UT]
|
|
General
Information (About, Top)
| Year |
2001 |
| Fractional day of year |
62.443970 |
| Arrival time of shock [seconds of day] |
38359.0 ± 16.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
0.036 |
| Y GSE location of spacecraft [Re] |
-0.006 |
| Z GSE location of spacecraft [Re] |
0.002 |
| Upstream plasma points selected for analysis |
0013 |
| Upstream field points selected for analysis |
0058 |
| Downstream plasma points selected for analysis |
0010
|
| Downstream field points selected for analysis |
0049 |
| Minimum chisq/dof for RH8,RH9,RH10 |
4.05, 5.90, 6.03 |
Event added to database
|
Sat Apr 30 21:49:31 2005
|
Event last processed
|
Tue May 3 13:49:42 2005
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.007 ± 0.000
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-444.6 ± 4.2 |
-504.9 ± 9.9 |
| Vy GSE [km/s] |
25.7 ± 1.8 |
21.2 ± 11.6 |
| Vz GSE [km/s] |
12.2 ± 3.0 |
19.7 ± 10.2 |
| Wi [km/s] |
27.7 ± 1.3 |
49.4 ± 6.6 |
| We [km/s] |
876.5 ± 42.0 |
1563.5 ± 207.9 |
| Ni [n/cc] |
4.0 ± 0.3 |
7.6 ± 0.8 |
| Bx GSE [nT] |
-1.8 ± 0.6 |
-0.4 ± 1.9 |
| By GSE [nT] |
1.4 ± 0.3 |
7.6 ± 1.9 |
| Bz GSE [nT] |
-3.9 ± 0.4 |
-1.0 ± 3.0 |
Plasma Beta
|
0.309 ± 0.301
|
0.606 ± 0.403
|
Sound Speed [km/s]
|
35.78 ± 1.71
|
63.83 ± 8.49
|
Alfven Speed [km/s]
|
50.16 ± 2.14
|
68.25 ± 9.73
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.560 ± 0.439 |
0.524 ± 0.449 |
-0.642 ± 0.535 |
-39.95 ± 32.27 |
136.90 ± 38.32 |
| VC |
-0.990 ± 0.024 |
-0.046 ± 0.190 |
0.134 ± 0.133 |
7.70 ± 9.74 |
182.69 ± 11.00 |
| MX1 |
-0.850 ± 0.383 |
-0.245 ± 0.668 |
0.465 ± 0.428 |
27.72 ± 42.59 |
196.10 ± 44.51 |
| MX2 |
-0.961 ± 0.064 |
0.155 ± 0.213 |
0.228 ± 0.224 |
13.17 ± 13.77 |
170.83 ± 12.67 |
| MX3 |
-0.952 ± 0.055 |
0.089 ± 0.154 |
0.294 ± 0.285 |
17.07 ± 10.36 |
174.66 ± 9.28 |
| RH08 |
-0.963 ± 0.004 |
0.214 ± 0.013 |
0.162 ± 0.161 |
9.32 ± 0.87 |
167.47 ± 0.79 |
| RH09 |
-0.920 ± 0.027 |
0.309 ± 0.067 |
0.240 ± 0.235 |
13.90 ± 3.98 |
161.45 ± 4.17 |
| RH10 |
-0.920 ± 0.027 |
0.309 ± 0.067 |
0.240 ± 0.235 |
13.90 ± 3.98 |
161.45 ± 4.17 |
| Average |
-0.890 |
0.163 |
0.140 |
7.855 |
168.943 |
| Median |
-0.920 |
0.214 |
0.240 |
13.900 |
170.831 |
| Deviation |
0.140 |
0.237 |
0.332 |
20.244 |
17.337 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
20.4 ± 7.6 |
306.8 ± 19.0 |
1.91 ± 0.27 |
| VC |
74.4 ± 9.0 |
573.6 ± 38.4 |
1.91 ± 0.27 |
| MX1 |
82.4 ± 8.7 |
497.7 ± 36.0 |
1.91 ± 0.27 |
| MX2 |
76.0 ± 9.5 |
560.1 ± 32.9 |
1.91 ± 0.27 |
| MX3 |
80.8 ± 9.4 |
555.7 ± 33.6 |
1.91 ± 0.27 |
| RH08 |
71.5 ± 9.5 |
559.9 ± 32.1 |
1.91 ± 0.27 |
| RH09 |
74.7 ± 9.6 |
536.4 ± 28.5 |
1.91 ± 0.27 |
| RH10 |
74.7 ± 9.6 |
536.4 ± 28.5 |
1.91 ± 0.27 |
| Average |
69.4 |
515.8 |
1.91 |
| Median |
74.7 |
555.7 |
1.91 |
| Deviation |
20.1 |
87.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
52.4 ± 1.5 |
31.9 ± 1.2 |
47.0 ± 2.0 |
52.8 ± 1.6 |
1.65 ± 0.06 |
0.99 ± 0.05 |
| VC |
133.0 ± 4.5 |
7.9 ± 0.2 |
13.5 ± 0.6 |
61.1 ± 1.2 |
16.83 ± 0.44 |
2.18 ± 0.10 |
| MX1 |
120.2 ± 4.7 |
3.9 ± 0.1 |
6.7 ± 0.3 |
61.5 ± 1.2 |
31.11 ± 0.93 |
1.95 ± 0.10 |
| MX2 |
126.0 ± 4.8 |
7.1 ± 0.2 |
12.1 ± 0.5 |
61.3 ± 1.2 |
17.82 ± 0.50 |
2.06 ± 0.10 |
| MX3 |
126.7 ± 4.8 |
4.7 ± 0.1 |
8.1 ± 0.3 |
61.5 ± 1.2 |
27.07 ± 0.77 |
2.06 ± 0.10 |
| RH8 |
124.2 ± 4.6 |
9.3 ± 0.2 |
15.9 ± 0.7 |
60.9 ± 1.2 |
13.30 ± 0.36 |
2.04 ± 0.10 |
| RH9 |
116.5 ± 4.7 |
7.7 ± 0.2 |
13.2 ± 0.6 |
61.2 ± 1.2 |
15.11 ± 0.44 |
1.90 ± 0.10 |
| RH10 |
116.5 ± 4.7 |
7.7 ± 0.2 |
13.2 ± 0.6 |
61.2 ± 1.2 |
15.11 ± 0.44 |
1.90 ± 0.10 |
| Average |
114.4 |
10.0 |
16.2 |
60.2 |
17.2 |
1.9 |
| Median |
124.2 |
7.7 |
13.2 |
61.2 |
16.8 |
2.0 |
| Deviation |
25.7 |
9.0 |
12.8 |
3.0 |
8.9 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
25.8 ± 6.7 |
50.6 ± 2.3 |
64.0 ± 9.1 |
79.4 ± 3.1 |
0.51 ± 0.12 |
0.33 ± 0.08 |
| VC |
72.1 ± 9.6 |
12.4 ± 0.5 |
18.4 ± 2.6 |
93.4 ± 3.4 |
5.84 ± 0.88 |
0.77 ± 0.11 |
| MX1 |
64.3 ± 9.2 |
6.1 ± 0.2 |
9.1 ± 1.3 |
94.0 ± 3.4 |
10.66 ± 1.77 |
0.69 ± 0.11 |
| MX2 |
67.0 ± 7.0 |
11.1 ± 0.4 |
16.5 ± 2.4 |
93.5 ± 3.4 |
6.07 ± 0.76 |
0.72 ± 0.09 |
| MX3 |
67.5 ± 7.3 |
7.3 ± 0.3 |
11.0 ± 1.6 |
93.9 ± 3.4 |
9.23 ± 1.21 |
0.72 ± 0.09 |
| RH8 |
65.8 ± 6.7 |
14.6 ± 0.6 |
21.7 ± 3.1 |
93.0 ± 3.3 |
4.51 ± 0.55 |
0.71 ± 0.08 |
| RH9 |
60.5 ± 5.3 |
12.1 ± 0.5 |
18.0 ± 2.6 |
93.4 ± 3.4 |
5.03 ± 0.56 |
0.65 ± 0.07 |
| RH10 |
60.5 ± 5.3 |
12.1 ± 0.5 |
18.0 ± 2.6 |
93.4 ± 3.4 |
5.03 ± 0.56 |
0.65 ± 0.07 |
| Average |
60.4 |
15.8 |
22.1 |
91.8 |
5.9 |
0.7 |
| Median |
65.8 |
12.1 |
18.0 |
93.4 |
5.8 |
0.7 |
| Deviation |
14.5 |
14.4 |
17.4 |
5.0 |
3.1 |
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)
| 
