Database: Ace Shock Analysis
Event ID: 20002241810
Observation time: 08/11/2000 224.75760 1810 [UT]
|
|
General
Information (About, Top)
| Year |
2000 |
| Fractional day of year |
224.757604 |
| Arrival time of shock [seconds of day] |
65457.0 ± 16.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
0.039 |
| Y GSE location of spacecraft [Re] |
-0.003 |
| Z GSE location of spacecraft [Re] |
0.004 |
| Upstream plasma points selected for analysis |
0006 |
| Upstream field points selected for analysis |
0027 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0028 |
| Minimum chisq/dof for RH8,RH9,RH10 |
4.57, 6.57, 6.82 |
Event added to database
|
Sat Apr 30 21:47:17 2005
|
Event last processed
|
Wed Oct 15 16:45:55 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.008 ± 0.002
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-407.3 ± 6.1 |
-510.2 ± 8.1 |
| Vy GSE [km/s] |
9.3 ± 5.3 |
-25.3 ± 6.2 |
| Vz GSE [km/s] |
-3.9 ± 18.3 |
-123.9 ± 5.5 |
| Wi [km/s] |
29.0 ± 4.7 |
59.9 ± 3.7 |
| We [km/s] |
916.8 ± 148.9 |
1892.9 ± 115.5 |
| Ni [n/cc] |
2.1 ± 0.6 |
4.4 ± 1.0 |
| Bx GSE [nT] |
-3.7 ± 0.3 |
-4.5 ± 0.4 |
| By GSE [nT] |
9.2 ± 0.3 |
19.5 ± 0.2 |
| Bz GSE [nT] |
-1.5 ± 0.7 |
1.5 ± 0.2 |
Plasma Beta
|
0.044 ± 0.051
|
0.087 ± 0.075
|
Sound Speed [km/s]
|
37.51 ± 6.22
|
77.38 ± 4.75
|
Alfven Speed [km/s]
|
149.33 ± 22.39
|
206.44 ± 21.80
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.637 ± 0.096 |
0.201 ± 0.091 |
-0.745 ± 0.561 |
-48.12 ± 7.46 |
162.51 ± 7.74 |
| VC |
-0.645 ± 0.053 |
-0.217 ± 0.044 |
-0.732 ± 0.560 |
-47.09 ± 4.22 |
198.62 ± 3.61 |
| MX1 |
-0.704 ± 0.047 |
0.168 ± 0.070 |
-0.690 ± 0.551 |
-43.60 ± 3.79 |
166.61 ± 5.62 |
| MX2 |
-0.714 ± 0.042 |
0.163 ± 0.067 |
-0.681 ± 0.549 |
-42.95 ± 3.41 |
167.10 ± 5.34 |
| MX3 |
-0.722 ± 0.039 |
0.159 ± 0.065 |
-0.673 ± 0.546 |
-42.32 ± 3.14 |
167.55 ± 5.14 |
| RH08 |
-0.772 ± 0.021 |
-0.215 ± 0.028 |
0.598 ± 0.514 |
36.71 ± 2.00 |
195.54 ± 2.00 |
| RH09 |
-0.772 ± 0.025 |
-0.215 ± 0.026 |
0.598 ± 0.514 |
36.71 ± 2.39 |
195.54 ± 1.87 |
| RH10 |
-0.772 ± 0.027 |
-0.215 ± 0.028 |
0.598 ± 0.514 |
36.71 ± 2.57 |
195.54 ± 2.04 |
| Average |
-0.717 |
-0.021 |
-0.216 |
-14.244 |
181.128 |
| Median |
-0.714 |
0.159 |
-0.673 |
-42.320 |
195.543 |
| Deviation |
0.055 |
0.208 |
0.674 |
42.240 |
16.335 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
56.8 ± 4.1 |
548.1 ± 119.0 |
2.22 ± 0.90 |
| VC |
80.3 ± 4.0 |
572.0 ± 126.4 |
2.22 ± 0.90 |
| MX1 |
57.7 ± 4.0 |
577.7 ± 118.8 |
2.22 ± 0.90 |
| MX2 |
57.8 ± 3.9 |
581.4 ± 118.7 |
2.22 ± 0.90 |
| MX3 |
57.9 ± 3.9 |
584.8 ± 118.5 |
2.22 ± 0.90 |
| RH08 |
89.6 ± 2.4 |
342.2 ± 3.0 |
2.22 ± 0.90 |
| RH09 |
89.6 ± 2.4 |
342.2 ± 3.0 |
2.22 ± 0.90 |
| RH10 |
89.6 ± 2.4 |
342.2 ± 19.3 |
2.22 ± 0.90 |
| Average |
72.4 |
486.3 |
2.22 |
| Median |
80.3 |
572.0 |
2.22 |
| Deviation |
16.2 |
119.8 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
283.5 ± 14.1 |
20.0 ± 3.0 |
81.7 ± 12.3 |
152.9 ± 20.9 |
14.42 ± 1.91 |
1.89 ± 0.35 |
| VC |
307.8 ± 15.8 |
6.1 ± 0.9 |
25.3 ± 3.8 |
154.2 ± 20.5 |
51.03 ± 6.50 |
2.04 ± 0.36 |
| MX1 |
286.0 ± 13.6 |
19.5 ± 3.0 |
79.9 ± 12.0 |
153.0 ± 20.9 |
14.90 ± 1.97 |
1.91 ± 0.34 |
| MX2 |
286.1 ± 13.5 |
19.4 ± 3.0 |
79.6 ± 11.9 |
153.0 ± 20.9 |
14.95 ± 1.98 |
1.91 ± 0.34 |
| MX3 |
286.2 ± 13.4 |
19.4 ± 2.9 |
79.3 ± 11.9 |
153.0 ± 20.9 |
15.00 ± 1.99 |
1.91 ± 0.34 |
| RH8 |
32.2 ± 9.6 |
0.3 ± 0.0 |
1.1 ± 0.2 |
154.3 ± 20.4 |
120.21 ± 43.91 |
0.21 ± 0.05 |
| RH9 |
32.2 ± 9.6 |
0.3 ± 0.0 |
1.1 ± 0.2 |
154.3 ± 20.4 |
120.21 ± 43.91 |
0.21 ± 0.05 |
| RH10 |
32.2 ± 9.6 |
0.3 ± 0.0 |
1.1 ± 0.2 |
154.3 ± 20.4 |
120.21 ± 43.91 |
0.21 ± 0.05 |
| Average |
193.3 |
10.7 |
43.6 |
153.6 |
58.9 |
1.3 |
| Median |
286.0 |
19.4 |
79.3 |
154.2 |
51.0 |
1.9 |
| Deviation |
133.6 |
9.7 |
39.8 |
0.7 |
52.3 |
0.9 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
137.0 ± 6.8 |
40.3 ± 2.3 |
113.0 ± 11.9 |
216.9 ± 20.7 |
3.41 ± 0.31 |
0.63 ± 0.05 |
| VC |
147.2 ± 7.9 |
12.3 ± 0.7 |
34.9 ± 3.7 |
220.3 ± 20.5 |
12.05 ± 0.98 |
0.67 ± 0.04 |
| MX1 |
137.8 ± 7.1 |
39.3 ± 2.2 |
110.4 ± 11.7 |
217.1 ± 20.7 |
3.52 ± 0.32 |
0.64 ± 0.05 |
| MX2 |
137.8 ± 7.1 |
39.2 ± 2.2 |
110.0 ± 11.6 |
217.1 ± 20.7 |
3.53 ± 0.32 |
0.64 ± 0.05 |
| MX3 |
137.8 ± 7.2 |
39.0 ± 2.2 |
109.7 ± 11.6 |
217.1 ± 20.7 |
3.54 ± 0.32 |
0.64 ± 0.05 |
| RH8 |
15.7 ± 7.2 |
0.6 ± 0.0 |
1.6 ± 0.2 |
220.6 ± 20.5 |
28.40 ± 12.80 |
0.07 ± 0.03 |
| RH9 |
15.7 ± 7.2 |
0.6 ± 0.0 |
1.6 ± 0.2 |
220.6 ± 20.5 |
28.40 ± 12.80 |
0.07 ± 0.03 |
| RH10 |
15.7 ± 7.2 |
0.6 ± 0.0 |
1.6 ± 0.2 |
220.6 ± 20.5 |
28.40 ± 12.80 |
0.07 ± 0.03 |
| Average |
93.1 |
21.5 |
60.3 |
218.8 |
13.9 |
0.4 |
| Median |
137.8 |
39.0 |
109.7 |
220.3 |
12.0 |
0.6 |
| Deviation |
64.2 |
19.6 |
55.0 |
1.9 |
12.3 |
0.3 |
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)
| 
