Database: Ace Shock Analysis
Event ID: 20012150625
Observation time: 08/03/2001 215.26782 0625 [UT]
|
|
General
Information (About, Top)
| Year |
2001 |
| Fractional day of year |
215.267824 |
| Arrival time of shock [seconds of day] |
23140.0 ± 16.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
0.039 |
| Y GSE location of spacecraft [Re] |
-0.004 |
| Z GSE location of spacecraft [Re] |
0.004 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0033 |
| Downstream plasma points selected for analysis |
0005
|
| Downstream field points selected for analysis |
0021 |
| Minimum chisq/dof for RH8,RH9,RH10 |
7.55, 28.17, 29.28 |
Event added to database
|
Sat Apr 30 21:51:48 2005
|
Event last processed
|
Tue May 3 14:00:52 2005
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.009 ± 0.000
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-378.1 ± 2.2 |
-449.2 ± 6.5 |
| Vy GSE [km/s] |
21.6 ± 3.5 |
30.8 ± 1.5 |
| Vz GSE [km/s] |
-22.2 ± 1.6 |
0.7 ± 2.7 |
| Wi [km/s] |
18.7 ± 1.8 |
39.6 ± 2.9 |
| We [km/s] |
590.1 ± 58.3 |
1253.1 ± 92.9 |
| Ni [n/cc] |
6.5 ± 0.8 |
26.1 ± 3.2 |
| Bx GSE [nT] |
3.8 ± 1.0 |
-0.3 ± 1.6 |
| By GSE [nT] |
-0.7 ± 1.8 |
-12.8 ± 1.1 |
| Bz GSE [nT] |
-3.8 ± 0.9 |
-7.7 ± 3.2 |
Plasma Beta
|
0.150 ± 0.122
|
0.425 ± 0.313
|
Sound Speed [km/s]
|
24.09 ± 2.38
|
51.16 ± 3.79
|
Alfven Speed [km/s]
|
49.56 ± 5.76
|
65.42 ± 12.97
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.773 ± 0.165 |
0.082 ± 0.123 |
0.629 ± 0.529 |
38.99 ± 15.08 |
173.98 ± 9.03 |
| VC |
-0.944 ± 0.017 |
0.123 ± 0.048 |
0.306 ± 0.296 |
17.82 ± 2.90 |
172.55 ± 2.91 |
| MX1 |
-0.960 ± 0.135 |
0.190 ± 0.423 |
0.207 ± 0.204 |
11.96 ± 29.75 |
168.78 ± 25.23 |
| MX2 |
-0.919 ± 0.022 |
0.192 ± 0.086 |
0.344 ± 0.330 |
20.12 ± 2.14 |
168.19 ± 5.34 |
| MX3 |
-0.923 ± 0.022 |
0.198 ± 0.088 |
0.330 ± 0.318 |
19.29 ± 2.10 |
167.92 ± 5.47 |
| RH08 |
-0.982 ± 0.004 |
0.183 ± 0.022 |
0.039 ± 0.039 |
2.24 ± 1.00 |
169.47 ± 1.26 |
| RH09 |
-0.951 ± 0.022 |
0.264 ± 0.068 |
0.162 ± 0.161 |
9.32 ± 4.03 |
164.46 ± 4.07 |
| RH10 |
-0.955 ± 0.021 |
0.248 ± 0.068 |
0.162 ± 0.161 |
9.32 ± 4.03 |
165.46 ± 4.07 |
| Average |
-0.926 |
0.185 |
0.272 |
16.134 |
168.851 |
| Median |
-0.944 |
0.192 |
0.306 |
17.819 |
168.783 |
| Deviation |
0.065 |
0.060 |
0.177 |
11.048 |
3.217 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
19.3 ± 15.0 |
372.1 ± 9.7 |
4.13 ± 0.56 |
| VC |
33.1 ± 10.9 |
451.0 ± 11.5 |
4.13 ± 0.56 |
| MX1 |
38.1 ± 8.2 |
459.9 ± 11.7 |
4.13 ± 0.56 |
| MX2 |
31.6 ± 9.4 |
442.4 ± 11.3 |
4.13 ± 0.56 |
| MX3 |
32.3 ± 9.1 |
444.2 ± 11.3 |
4.13 ± 0.56 |
| RH08 |
46.4 ± 7.1 |
468.7 ± 11.9 |
4.13 ± 0.56 |
| RH09 |
40.7 ± 5.9 |
458.0 ± 11.6 |
4.13 ± 0.56 |
| RH10 |
40.6 ± 6.4 |
459.5 ± 11.6 |
4.13 ± 0.56 |
| Average |
35.3 |
444.5 |
4.13 |
| Median |
38.1 |
458.0 |
4.13 |
| Deviation |
8.2 |
30.5 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
92.1 ± 1.7 |
22.3 ± 2.1 |
46.8 ± 5.4 |
50.4 ± 5.5 |
4.16 ± 0.37 |
1.85 ± 0.23 |
| VC |
98.3 ± 2.1 |
19.3 ± 1.7 |
41.5 ± 4.8 |
51.7 ± 5.3 |
5.12 ± 0.42 |
1.92 ± 0.21 |
| MX1 |
97.6 ± 2.2 |
18.0 ± 1.5 |
39.0 ± 4.5 |
52.2 ± 5.2 |
5.47 ± 0.44 |
1.89 ± 0.20 |
| MX2 |
98.4 ± 2.1 |
19.7 ± 1.7 |
42.2 ± 4.9 |
51.5 ± 5.3 |
5.03 ± 0.42 |
1.93 ± 0.21 |
| MX3 |
98.4 ± 2.1 |
19.5 ± 1.7 |
41.9 ± 4.9 |
51.6 ± 5.3 |
5.07 ± 0.42 |
1.93 ± 0.21 |
| RH8 |
94.3 ± 2.4 |
15.5 ± 1.3 |
34.2 ± 4.0 |
53.0 ± 5.2 |
6.12 ± 0.47 |
1.79 ± 0.18 |
| RH9 |
96.5 ± 2.4 |
17.2 ± 1.4 |
37.6 ± 4.4 |
52.4 ± 5.2 |
5.64 ± 0.45 |
1.86 ± 0.19 |
| RH10 |
96.6 ± 2.4 |
17.2 ± 1.4 |
37.6 ± 4.4 |
52.4 ± 5.2 |
5.63 ± 0.45 |
1.86 ± 0.19 |
| Average |
96.5 |
18.6 |
40.1 |
51.9 |
5.3 |
1.9 |
| Median |
97.6 |
19.3 |
41.5 |
52.2 |
5.5 |
1.9 |
| Deviation |
2.3 |
2.1 |
3.8 |
0.8 |
0.6 |
0.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
21.9 ± 4.6 |
44.0 ± 1.1 |
61.7 ± 12.2 |
71.0 ± 9.2 |
0.50 ± 0.11 |
0.32 ± 0.10 |
| VC |
22.9 ± 5.8 |
36.9 ± 1.2 |
54.8 ± 10.9 |
75.0 ± 8.5 |
0.62 ± 0.17 |
0.31 ± 0.10 |
| MX1 |
22.7 ± 6.0 |
34.0 ± 1.2 |
51.5 ± 10.2 |
76.3 ± 8.3 |
0.67 ± 0.19 |
0.31 ± 0.10 |
| MX2 |
23.3 ± 5.6 |
37.7 ± 1.2 |
55.7 ± 11.1 |
74.6 ± 8.5 |
0.62 ± 0.16 |
0.32 ± 0.10 |
| MX3 |
23.3 ± 5.6 |
37.4 ± 1.2 |
55.3 ± 11.0 |
74.7 ± 8.5 |
0.62 ± 0.16 |
0.32 ± 0.10 |
| RH8 |
21.7 ± 6.3 |
29.1 ± 1.2 |
45.1 ± 8.9 |
78.4 ± 8.2 |
0.75 ± 0.23 |
0.29 ± 0.10 |
| RH9 |
22.7 ± 5.9 |
32.5 ± 1.2 |
49.6 ± 9.8 |
77.0 ± 8.3 |
0.70 ± 0.20 |
0.30 ± 0.10 |
| RH10 |
22.6 ± 5.9 |
32.6 ± 1.2 |
49.7 ± 9.9 |
77.0 ± 8.3 |
0.70 ± 0.20 |
0.30 ± 0.10 |
| Average |
22.6 |
35.5 |
52.9 |
75.5 |
0.6 |
0.3 |
| Median |
22.7 |
36.9 |
54.8 |
76.3 |
0.7 |
0.3 |
| Deviation |
0.6 |
4.5 |
5.1 |
2.2 |
0.1 |
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)
| 
