Database: Ace Shock Analysis
Event ID: 20041011926
Observation time: 04/10/2004 101.81013 1926 [UT]
|
|
General
Information (About, Top)
| Year |
2004 |
| Fractional day of year |
101.810133 |
| Arrival time of shock [seconds of day] |
69995.5 ± 20.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
229.495 |
| Y GSE location of spacecraft [Re] |
39.146 |
| Z GSE location of spacecraft [Re] |
-22.369 |
| Upstream plasma points selected for analysis |
0004 |
| Upstream field points selected for analysis |
0270 |
| Downstream plasma points selected for analysis |
0003
|
| Downstream field points selected for analysis |
0198 |
| Minimum chisq/dof for RH8,RH9,RH10 |
33.07, 46.89, 70.58 |
Event added to database
|
Wed Oct 15 10:23:17 2014
|
Event last processed
|
Wed Oct 15 11:18:06 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
42.462 ± 2.990
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-441.2 ± 2.7 |
-499.8 ± 4.0 |
| Vy GSE [km/s] |
-1.6 ± 7.6 |
-21.1 ± 5.1 |
| Vz GSE [km/s] |
43.2 ± 5.7 |
92.8 ± 5.5 |
| Wi [km/s] |
26.2 ± 1.7 |
44.5 ± 3.1 |
| We [km/s] |
828.1 ± 54.0 |
1408.7 ± 97.2 |
| Ni [n/cc] |
4.0 ± 0.3 |
9.6 ± 0.8 |
| Bx GSE [nT] |
0.1 ± 0.4 |
2.5 ± 1.3 |
| By GSE [nT] |
-2.4 ± 1.0 |
-9.9 ± 0.7 |
| Bz GSE [nT] |
4.2 ± 0.4 |
3.9 ± 0.9 |
Plasma Beta
|
0.232 ± 0.263
|
0.333 ± 0.318
|
Sound Speed [km/s]
|
33.81 ± 2.21
|
57.51 ± 3.97
|
Alfven Speed [km/s]
|
54.79 ± 4.84
|
77.70 ± 4.05
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.179 ± 0.142 |
-0.093 ± 0.186 |
0.979 ± 0.276 |
78.35 ± 7.18 |
207.37 ± 56.60 |
| VC |
-0.744 ± 0.066 |
-0.243 ± 0.088 |
0.623 ± 0.526 |
38.51 ± 5.75 |
198.08 ± 6.62 |
| MX1 |
-0.763 ± 0.162 |
-0.259 ± 0.132 |
0.592 ± 0.510 |
36.28 ± 16.03 |
198.72 ± 9.03 |
| MX2 |
-0.738 ± 0.085 |
-0.253 ± 0.115 |
0.625 ± 0.527 |
38.71 ± 7.36 |
198.93 ± 8.66 |
| MX3 |
-0.735 ± 0.073 |
-0.253 ± 0.113 |
0.629 ± 0.529 |
39.00 ± 6.05 |
198.98 ± 8.63 |
| RH08 |
-0.944 ± 0.013 |
-0.008 ± 0.029 |
0.330 ± 0.317 |
19.25 ± 2.21 |
180.50 ± 1.74 |
| RH09 |
-0.940 ± 0.024 |
0.008 ± 0.070 |
0.341 ± 0.327 |
19.92 ± 4.02 |
179.50 ± 4.29 |
| RH10 |
-0.940 ± 0.024 |
0.008 ± 0.070 |
0.341 ± 0.327 |
19.92 ± 4.02 |
179.50 ± 4.29 |
| Average |
-0.748 |
-0.137 |
0.557 |
36.243 |
192.696 |
| Median |
-0.744 |
-0.093 |
0.623 |
38.509 |
198.717 |
| Deviation |
0.250 |
0.127 |
0.220 |
19.322 |
11.058 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
26.6 ± 12.3 |
230.2 ± 2.6 |
2.36 ± 0.30 |
| VC |
50.2 ± 6.3 |
489.6 ± 3.1 |
2.36 ± 0.30 |
| MX1 |
51.6 ± 5.9 |
497.1 ± 3.1 |
2.36 ± 0.30 |
| MX2 |
49.6 ± 6.2 |
487.2 ± 3.1 |
2.36 ± 0.30 |
| MX3 |
49.4 ± 6.2 |
486.0 ± 3.1 |
2.36 ± 0.30 |
| RH08 |
74.2 ± 6.2 |
553.5 ± 2.6 |
2.36 ± 0.30 |
| RH09 |
74.1 ± 6.4 |
552.0 ± 2.6 |
2.36 ± 0.30 |
| RH10 |
74.1 ± 6.4 |
552.0 ± 8.5 |
2.36 ± 0.30 |
| Average |
56.2 |
481.0 |
2.36 |
| Median |
51.6 |
497.1 |
2.36 |
| Deviation |
16.9 |
106.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
108.6 ± 5.1 |
28.7 ± 1.7 |
49.0 ± 4.3 |
57.7 ± 4.6 |
3.79 ± 0.28 |
1.89 ± 0.09 |
| VC |
134.1 ± 3.7 |
19.3 ± 1.1 |
35.1 ± 3.1 |
61.5 ± 4.5 |
6.98 ± 0.53 |
2.19 ± 0.15 |
| MX1 |
134.3 ± 3.7 |
18.6 ± 1.1 |
34.0 ± 3.0 |
61.7 ± 4.5 |
7.23 ± 0.55 |
2.19 ± 0.16 |
| MX2 |
134.1 ± 3.7 |
19.5 ± 1.1 |
35.5 ± 3.1 |
61.4 ± 4.5 |
6.89 ± 0.52 |
2.19 ± 0.16 |
| MX3 |
134.2 ± 3.7 |
19.6 ± 1.1 |
35.7 ± 3.2 |
61.4 ± 4.5 |
6.85 ± 0.52 |
2.19 ± 0.16 |
| RH8 |
122.7 ± 3.2 |
7.9 ± 0.4 |
14.9 ± 1.3 |
63.9 ± 4.5 |
15.66 ± 1.14 |
1.93 ± 0.13 |
| RH9 |
122.6 ± 3.2 |
7.9 ± 0.5 |
15.0 ± 1.3 |
63.9 ± 4.5 |
15.54 ± 1.12 |
1.92 ± 0.13 |
| RH10 |
122.6 ± 3.2 |
7.9 ± 0.5 |
15.0 ± 1.3 |
63.9 ± 4.5 |
15.54 ± 1.12 |
1.92 ± 0.13 |
| Average |
126.6 |
16.2 |
29.3 |
61.9 |
9.8 |
2.1 |
| Median |
134.1 |
19.3 |
35.1 |
61.7 |
7.2 |
2.2 |
| Deviation |
9.3 |
7.6 |
12.8 |
2.1 |
4.9 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
47.8 ± 4.5 |
47.3 ± 2.2 |
69.5 ± 3.6 |
84.4 ± 3.1 |
1.01 ± 0.06 |
0.57 ± 0.05 |
| VC |
54.9 ± 0.6 |
31.2 ± 1.3 |
49.8 ± 2.6 |
91.6 ± 3.0 |
1.76 ± 0.06 |
0.60 ± 0.02 |
| MX1 |
55.2 ± 0.6 |
30.1 ± 1.2 |
48.3 ± 2.5 |
91.9 ± 3.0 |
1.83 ± 0.07 |
0.60 ± 0.03 |
| MX2 |
54.9 ± 0.6 |
31.6 ± 1.3 |
50.3 ± 2.6 |
91.4 ± 3.0 |
1.74 ± 0.06 |
0.60 ± 0.02 |
| MX3 |
55.0 ± 0.6 |
31.8 ± 1.3 |
50.6 ± 2.6 |
91.4 ± 3.0 |
1.73 ± 0.06 |
0.60 ± 0.02 |
| RH8 |
50.9 ± 2.1 |
12.6 ± 0.5 |
21.1 ± 1.1 |
95.9 ± 3.1 |
4.04 ± 0.32 |
0.53 ± 0.04 |
| RH9 |
50.7 ± 2.0 |
12.7 ± 0.5 |
21.2 ± 1.1 |
95.9 ± 3.1 |
4.00 ± 0.31 |
0.53 ± 0.03 |
| RH10 |
50.7 ± 2.0 |
12.7 ± 0.5 |
21.2 ± 1.1 |
95.9 ± 3.1 |
4.00 ± 0.31 |
0.53 ± 0.03 |
| Average |
52.5 |
26.3 |
41.5 |
92.3 |
2.5 |
0.6 |
| Median |
54.9 |
31.2 |
49.8 |
91.9 |
1.8 |
0.6 |
| Deviation |
2.8 |
12.5 |
18.1 |
3.9 |
1.3 |
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)
| 
