Database: Ace Shock Analysis
Event ID: 20021130415
Observation time: 04/23/2002 113.17741 0415 [UT]
|
|
General
Information (About, Top)
| Year |
2002 |
| Fractional day of year |
113.177407 |
| Arrival time of shock [seconds of day] |
15328.0 ± 32.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
0.035 |
| 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 |
0035 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0033 |
| Minimum chisq/dof for RH8,RH9,RH10 |
11.87, 14.16, 15.30 |
Event added to database
|
Sun May 1 22:11:59 2005
|
Event last processed
|
Tue May 3 14:21:11 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] |
-427.3 ± 7.8 |
-607.6 ± 11.9 |
| Vy GSE [km/s] |
-14.1 ± 10.0 |
35.6 ± 31.2 |
| Vz GSE [km/s] |
16.4 ± 23.2 |
-15.7 ± 26.5 |
| Wi [km/s] |
37.9 ± 2.9 |
82.3 ± 4.4 |
| We [km/s] |
1196.9 ± 93.3 |
2604.0 ± 138.7 |
| Ni [n/cc] |
5.1 ± 0.5 |
14.2 ± 2.5 |
| Bx GSE [nT] |
-2.9 ± 1.2 |
4.4 ± 2.4 |
| By GSE [nT] |
5.9 ± 0.9 |
8.2 ± 4.2 |
| Bz GSE [nT] |
-2.0 ± 2.6 |
12.8 ± 4.9 |
Plasma Beta
|
0.282 ± 0.269
|
0.838 ± 0.801
|
Sound Speed [km/s]
|
48.86 ± 3.81
|
106.31 ± 5.66
|
Alfven Speed [km/s]
|
72.10 ± 4.36
|
97.70 ± 22.10
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.404 ± 0.477 |
0.914 ± 0.211 |
0.022 ± 0.022 |
1.27 ± 16.72 |
113.87 ± 29.86 |
| VC |
-0.951 ± 0.051 |
0.262 ± 0.159 |
-0.163 ± 0.162 |
-9.39 ± 9.85 |
164.58 ± 9.54 |
| MX1 |
-0.981 ± 0.103 |
0.093 ± 0.986 |
0.173 ± 0.171 |
9.95 ± 14.45 |
174.58 ± 57.60 |
| MX2 |
-0.774 ± 0.096 |
0.559 ± 0.123 |
0.299 ± 0.289 |
17.37 ± 10.21 |
144.17 ± 8.81 |
| MX3 |
-0.839 ± 0.080 |
0.413 ± 0.123 |
0.355 ± 0.339 |
20.80 ± 9.79 |
153.78 ± 8.18 |
| RH08 |
-0.984 ± 0.002 |
0.148 ± 0.013 |
-0.095 ± 0.095 |
-5.45 ± 0.82 |
171.48 ± 0.75 |
| RH09 |
-0.779 ± 0.044 |
0.089 ± 0.070 |
0.620 ± 0.525 |
38.32 ± 4.04 |
173.48 ± 5.15 |
| RH10 |
-0.786 ± 0.043 |
0.104 ± 0.070 |
0.609 ± 0.519 |
37.51 ± 4.02 |
172.48 ± 5.06 |
| Average |
-0.812 |
0.323 |
0.227 |
13.799 |
158.550 |
| Median |
-0.786 |
0.262 |
0.299 |
17.375 |
171.476 |
| Deviation |
0.188 |
0.294 |
0.298 |
18.149 |
21.056 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
24.5 ± 17.4 |
359.2 ± 46.6 |
2.86 ± 0.74 |
| VC |
50.5 ± 9.0 |
695.6 ± 45.3 |
2.86 ± 0.74 |
| MX1 |
64.9 ± 14.1 |
703.1 ± 37.2 |
2.86 ± 0.74 |
| MX2 |
45.4 ± 20.8 |
579.9 ± 36.6 |
2.86 ± 0.74 |
| MX3 |
53.9 ± 19.9 |
614.9 ± 34.2 |
2.86 ± 0.74 |
| RH08 |
57.4 ± 9.6 |
715.3 ± 43.3 |
2.86 ± 0.74 |
| RH09 |
77.4 ± 20.6 |
548.2 ± 30.8 |
2.86 ± 0.74 |
| RH10 |
76.4 ± 20.5 |
555.3 ± 30.7 |
2.86 ± 0.74 |
| Average |
56.3 |
596.4 |
2.86 |
| Median |
57.4 |
614.9 |
2.86 |
| Deviation |
17.3 |
117.3 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
198.9 ± 7.8 |
41.9 ± 2.6 |
65.6 ± 4.0 |
76.5 ± 3.5 |
4.77 ± 0.37 |
2.60 ± 0.10 |
| VC |
295.6 ± 6.1 |
26.9 ± 1.4 |
45.8 ± 2.8 |
82.9 ± 3.3 |
10.99 ± 0.52 |
3.57 ± 0.14 |
| MX1 |
282.6 ± 9.0 |
17.5 ± 0.9 |
30.6 ± 1.9 |
85.4 ± 3.4 |
16.21 ± 0.71 |
3.31 ± 0.10 |
| MX2 |
252.2 ± 10.2 |
30.2 ± 1.7 |
50.6 ± 3.1 |
81.8 ± 3.3 |
8.38 ± 0.48 |
3.08 ± 0.08 |
| MX3 |
256.6 ± 11.3 |
24.7 ± 1.3 |
42.4 ± 2.6 |
83.6 ± 3.3 |
10.39 ± 0.57 |
3.07 ± 0.08 |
| RH8 |
298.3 ± 6.6 |
22.5 ± 1.2 |
38.9 ± 2.4 |
84.2 ± 3.3 |
13.28 ± 0.59 |
3.54 ± 0.13 |
| RH9 |
206.3 ± 16.7 |
8.8 ± 0.4 |
15.7 ± 0.9 |
86.8 ± 3.4 |
23.46 ± 1.85 |
2.38 ± 0.15 |
| RH10 |
210.8 ± 16.4 |
9.6 ± 0.5 |
17.0 ± 1.0 |
86.7 ± 3.4 |
22.07 ± 1.69 |
2.43 ± 0.14 |
| Average |
250.2 |
22.8 |
38.3 |
83.5 |
13.7 |
3.0 |
| Median |
256.6 |
24.7 |
42.4 |
84.2 |
13.3 |
3.1 |
| Deviation |
40.7 |
10.9 |
16.9 |
3.3 |
6.5 |
0.5 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
81.2 ± 25.9 |
75.5 ± 12.0 |
88.9 ± 20.1 |
123.9 ± 11.7 |
1.10 ± 0.37 |
0.66 ± 0.22 |
| VC |
105.8 ± 11.8 |
47.6 ± 7.1 |
62.1 ± 14.1 |
137.1 ± 14.4 |
2.31 ± 0.70 |
0.79 ± 0.17 |
| MX1 |
106.8 ± 10.0 |
30.7 ± 4.5 |
41.5 ± 9.4 |
141.9 ± 15.3 |
3.57 ± 0.83 |
0.76 ± 0.13 |
| MX2 |
94.5 ± 13.8 |
53.5 ± 8.0 |
68.6 ± 15.5 |
135.0 ± 14.0 |
1.80 ± 0.32 |
0.70 ± 0.10 |
| MX3 |
96.2 ± 11.2 |
43.7 ± 6.4 |
57.5 ± 13.0 |
138.5 ± 14.7 |
2.24 ± 0.35 |
0.70 ± 0.08 |
| RH8 |
110.4 ± 10.9 |
39.7 ± 5.8 |
52.7 ± 11.9 |
139.7 ± 14.9 |
2.88 ± 0.84 |
0.80 ± 0.17 |
| RH9 |
81.2 ± 16.0 |
15.5 ± 2.2 |
21.2 ± 4.8 |
144.4 ± 15.7 |
5.28 ± 0.81 |
0.56 ± 0.08 |
| RH10 |
83.4 ± 15.6 |
16.8 ± 2.4 |
23.0 ± 5.2 |
144.2 ± 15.7 |
4.99 ± 0.73 |
0.58 ± 0.08 |
| Average |
94.9 |
40.4 |
52.0 |
138.1 |
3.0 |
0.7 |
| Median |
96.2 |
43.7 |
57.5 |
139.7 |
2.9 |
0.7 |
| Deviation |
12.0 |
19.8 |
22.9 |
6.6 |
1.5 |
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)
| 
