Database: Ace Shock Analysis
Event ID: 20023202304
Observation time: 11/16/2002 320.96133 2304 [UT]
|
|
General
Information (About, Top)
| Year |
2002 |
| Fractional day of year |
320.961331 |
| Arrival time of shock [seconds of day] |
83059.0 ± 26.0 |
| 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 |
0009 |
| Upstream field points selected for analysis |
0039 |
| Downstream plasma points selected for analysis |
0011
|
| Downstream field points selected for analysis |
0042 |
| Minimum chisq/dof for RH8,RH9,RH10 |
5.73, 7.66, 7.88 |
Event added to database
|
Sun May 1 22:48:53 2005
|
Event last processed
|
Tue May 3 14:37:15 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] |
-436.9 ± 2.8 |
-482.8 ± 9.3 |
| Vy GSE [km/s] |
-21.9 ± 4.0 |
-20.2 ± 13.3 |
| Vz GSE [km/s] |
-3.3 ± 8.4 |
23.7 ± 14.9 |
| Wi [km/s] |
32.8 ± 1.9 |
40.5 ± 2.7 |
| We [km/s] |
1036.5 ± 61.5 |
1280.0 ± 86.0 |
| Ni [n/cc] |
6.8 ± 0.6 |
10.4 ± 0.9 |
| Bx GSE [nT] |
3.7 ± 0.6 |
2.1 ± 1.5 |
| By GSE [nT] |
-5.0 ± 0.4 |
-8.3 ± 1.5 |
| Bz GSE [nT] |
-0.2 ± 0.9 |
4.0 ± 2.6 |
Plasma Beta
|
0.386 ± 0.410
|
0.366 ± 0.332
|
Sound Speed [km/s]
|
42.32 ± 2.51
|
52.26 ± 3.51
|
Alfven Speed [km/s]
|
53.16 ± 2.62
|
67.59 ± 3.90
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.735 ± 0.162 |
0.658 ± 0.180 |
0.163 ± 0.162 |
9.39 ± 11.66 |
138.15 ± 13.95 |
| VC |
-0.876 ± 0.129 |
0.042 ± 0.239 |
0.481 ± 0.440 |
28.76 ± 15.32 |
177.26 ± 15.61 |
| MX1 |
-0.767 ± 0.156 |
0.621 ± 0.191 |
0.160 ± 0.159 |
9.23 ± 10.16 |
140.98 ± 14.22 |
| MX2 |
-0.832 ± 0.112 |
0.537 ± 0.170 |
0.143 ± 0.142 |
8.21 ± 12.60 |
147.16 ± 11.62 |
| MX3 |
-0.874 ± 0.117 |
0.467 ± 0.207 |
0.136 ± 0.135 |
7.84 ± 18.51 |
151.85 ± 13.54 |
| RH08 |
-0.998 ± 0.001 |
0.061 ± 0.018 |
0.017 ± 0.017 |
0.96 ± 1.36 |
176.49 ± 1.06 |
| RH09 |
-0.945 ± 0.023 |
0.210 ± 0.069 |
-0.251 ± 0.246 |
-14.56 ± 3.99 |
167.47 ± 4.20 |
| RH10 |
-0.951 ± 0.022 |
0.194 ± 0.069 |
-0.240 ± 0.235 |
-13.90 ± 3.98 |
168.47 ± 4.17 |
| Average |
-0.872 |
0.349 |
0.076 |
4.490 |
158.478 |
| Median |
-0.874 |
0.467 |
0.143 |
8.208 |
167.465 |
| Deviation |
0.092 |
0.251 |
0.238 |
14.010 |
15.807 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
16.3 ± 6.2 |
418.9 ± 47.4 |
1.53 ± 0.11 |
| VC |
55.9 ± 6.2 |
534.3 ± 44.7 |
1.53 ± 0.11 |
| MX1 |
18.2 ± 6.5 |
437.6 ± 46.9 |
1.53 ± 0.11 |
| MX2 |
23.1 ± 6.6 |
477.4 ± 45.3 |
1.53 ± 0.11 |
| MX3 |
27.2 ± 6.6 |
503.0 ± 44.2 |
1.53 ± 0.11 |
| RH08 |
50.5 ± 6.7 |
570.2 ± 37.3 |
1.53 ± 0.11 |
| RH09 |
44.1 ± 7.6 |
514.3 ± 34.8 |
1.53 ± 0.11 |
| RH10 |
44.9 ± 7.5 |
519.1 ± 35.0 |
1.53 ± 0.11 |
| Average |
35.0 |
496.8 |
1.53 |
| Median |
44.1 |
514.3 |
1.53 |
| Deviation |
15.6 |
50.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
112.7 ± 2.8 |
38.5 ± 1.7 |
51.0 ± 2.5 |
56.0 ± 2.0 |
2.93 ± 0.17 |
2.01 ± 0.06 |
| VC |
154.2 ± 5.0 |
19.3 ± 0.6 |
29.8 ± 1.5 |
65.2 ± 1.7 |
8.01 ± 0.44 |
2.36 ± 0.07 |
| MX1 |
116.7 ± 2.7 |
37.7 ± 1.7 |
50.5 ± 2.5 |
56.6 ± 2.0 |
3.10 ± 0.17 |
2.06 ± 0.05 |
| MX2 |
126.2 ± 2.5 |
35.7 ± 1.4 |
48.9 ± 2.4 |
57.9 ± 1.9 |
3.54 ± 0.18 |
2.18 ± 0.05 |
| MX3 |
132.0 ± 2.4 |
33.9 ± 1.3 |
47.3 ± 2.3 |
59.0 ± 1.8 |
3.90 ± 0.19 |
2.24 ± 0.05 |
| RH8 |
135.5 ± 2.6 |
22.2 ± 0.7 |
33.8 ± 1.7 |
64.3 ± 1.7 |
6.11 ± 0.27 |
2.11 ± 0.06 |
| RH9 |
105.2 ± 2.5 |
25.6 ± 0.9 |
38.1 ± 1.9 |
63.0 ± 1.7 |
4.12 ± 0.17 |
1.67 ± 0.07 |
| RH10 |
107.0 ± 2.5 |
25.2 ± 0.8 |
37.7 ± 1.9 |
63.2 ± 1.7 |
4.25 ± 0.17 |
1.69 ± 0.07 |
| Average |
123.7 |
29.8 |
42.1 |
60.6 |
4.5 |
2.0 |
| Median |
126.2 |
33.9 |
47.3 |
63.0 |
4.1 |
2.1 |
| Deviation |
16.6 |
7.5 |
8.3 |
3.7 |
1.7 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
73.5 ± 10.4 |
47.7 ± 2.2 |
64.9 ± 3.7 |
71.0 ± 2.9 |
1.54 ± 0.23 |
1.04 ± 0.16 |
| VC |
100.9 ± 8.7 |
24.0 ± 0.8 |
37.9 ± 2.2 |
82.1 ± 2.7 |
4.21 ± 0.42 |
1.23 ± 0.12 |
| MX1 |
76.1 ± 10.1 |
46.8 ± 2.0 |
64.2 ± 3.7 |
71.6 ± 2.9 |
1.63 ± 0.23 |
1.07 ± 0.15 |
| MX2 |
83.3 ± 9.3 |
44.3 ± 1.8 |
62.2 ± 3.6 |
73.1 ± 2.8 |
1.88 ± 0.24 |
1.14 ± 0.14 |
| MX3 |
87.5 ± 8.9 |
42.1 ± 1.6 |
60.1 ± 3.5 |
74.5 ± 2.7 |
2.08 ± 0.24 |
1.18 ± 0.13 |
| RH8 |
89.2 ± 9.0 |
27.7 ± 1.0 |
43.0 ± 2.5 |
80.9 ± 2.6 |
3.23 ± 0.39 |
1.10 ± 0.12 |
| RH9 |
68.3 ± 9.5 |
31.8 ± 1.1 |
48.5 ± 2.8 |
79.4 ± 2.6 |
2.15 ± 0.34 |
0.86 ± 0.12 |
| RH10 |
69.5 ± 9.5 |
31.4 ± 1.1 |
47.9 ± 2.8 |
79.6 ± 2.6 |
2.22 ± 0.34 |
0.87 ± 0.13 |
| Average |
81.0 |
37.0 |
53.6 |
76.5 |
2.4 |
1.1 |
| Median |
83.3 |
42.1 |
60.1 |
79.4 |
2.2 |
1.1 |
| Deviation |
11.3 |
9.3 |
10.5 |
4.5 |
0.9 |
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)
| 
