Database: Ace Shock Analysis
Event ID: 20001950902
Observation time: 07/13/2000 195.37653 0902 [UT]
|
|
General
Information (About, Top)
| Year |
2000 |
| Fractional day of year |
195.376528 |
| Arrival time of shock [seconds of day] |
32532.0 ± 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] |
0.002 |
| Upstream plasma points selected for analysis |
0009 |
| Upstream field points selected for analysis |
0035 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0034 |
| Minimum chisq/dof for RH8,RH9,RH10 |
8.40, 15.15, 15.60 |
Event added to database
|
Sat Apr 30 21:46:47 2005
|
Event last processed
|
Wed Oct 15 16:27:36 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.006 ± 0.000
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-507.2 ± 2.6 |
-600.6 ± 7.5 |
| Vy GSE [km/s] |
18.9 ± 2.4 |
11.3 ± 5.4 |
| Vz GSE [km/s] |
15.5 ± 5.5 |
39.8 ± 10.6 |
| Wi [km/s] |
52.0 ± 1.8 |
64.6 ± 4.0 |
| We [km/s] |
1645.9 ± 56.7 |
2043.3 ± 125.5 |
| Ni [n/cc] |
4.6 ± 0.6 |
10.0 ± 1.3 |
| Bx GSE [nT] |
-2.9 ± 0.5 |
-0.3 ± 2.3 |
| By GSE [nT] |
4.8 ± 1.0 |
10.2 ± 1.7 |
| Bz GSE [nT] |
0.9 ± 1.9 |
-1.9 ± 1.7 |
Plasma Beta
|
0.744 ± 0.752
|
0.824 ± 0.868
|
Sound Speed [km/s]
|
66.94 ± 2.36
|
83.27 ± 5.11
|
Alfven Speed [km/s]
|
60.30 ± 2.53
|
71.87 ± 5.38
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.714 ± 0.195 |
0.635 ± 0.213 |
0.294 ± 0.286 |
17.12 ± 19.12 |
138.33 ± 16.30 |
| VC |
-0.967 ± 0.026 |
-0.076 ± 0.053 |
0.242 ± 0.237 |
14.02 ± 6.08 |
184.49 ± 3.13 |
| MX1 |
-0.817 ± 0.265 |
0.541 ± 0.396 |
0.199 ± 0.197 |
11.50 ± 15.12 |
146.49 ± 27.68 |
| MX2 |
-0.890 ± 0.102 |
0.450 ± 0.202 |
0.077 ± 0.077 |
4.42 ± 6.67 |
153.19 ± 13.01 |
| MX3 |
-0.935 ± 0.078 |
0.354 ± 0.207 |
-0.007 ± 0.007 |
-0.42 ± 10.59 |
159.28 ± 12.68 |
| RH08 |
-0.996 ± 0.001 |
0.061 ± 0.014 |
0.061 ± 0.061 |
3.52 ± 0.64 |
176.49 ± 0.78 |
| RH09 |
-0.988 ± 0.010 |
0.148 ± 0.067 |
-0.039 ± 0.039 |
-2.24 ± 4.06 |
171.48 ± 3.91 |
| RH10 |
-0.988 ± 0.010 |
0.148 ± 0.067 |
-0.039 ± 0.039 |
-2.24 ± 4.06 |
171.48 ± 3.91 |
| Average |
-0.912 |
0.283 |
0.099 |
5.710 |
162.654 |
| Median |
-0.935 |
0.354 |
0.077 |
4.423 |
171.476 |
| Deviation |
0.101 |
0.250 |
0.131 |
7.590 |
15.935 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
24.8 ± 4.6 |
511.0 ± 3.4 |
2.26 ± 0.31 |
| VC |
63.4 ± 4.7 |
682.9 ± 4.9 |
2.26 ± 0.31 |
| MX1 |
30.4 ± 3.0 |
576.3 ± 3.7 |
2.26 ± 0.31 |
| MX2 |
36.6 ± 4.2 |
618.7 ± 3.9 |
2.26 ± 0.31 |
| MX3 |
42.9 ± 5.2 |
643.9 ± 4.0 |
2.26 ± 0.31 |
| RH08 |
57.5 ± 2.9 |
688.4 ± 4.5 |
2.26 ± 0.31 |
| RH09 |
54.1 ± 4.4 |
678.6 ± 4.3 |
2.26 ± 0.31 |
| RH10 |
54.1 ± 4.4 |
678.6 ± 33.8 |
2.26 ± 0.31 |
| Average |
45.5 |
634.8 |
2.26 |
| Median |
54.1 |
678.6 |
2.26 |
| Deviation |
13.9 |
63.4 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
133.3 ± 2.6 |
48.0 ± 1.3 |
54.7 ± 2.3 |
76.3 ± 1.9 |
2.78 ± 0.12 |
1.75 ± 0.08 |
| VC |
190.1 ± 3.3 |
20.6 ± 0.5 |
27.0 ± 1.1 |
87.7 ± 2.2 |
9.24 ± 0.36 |
2.17 ± 0.08 |
| MX1 |
149.3 ± 2.3 |
44.3 ± 1.2 |
52.0 ± 2.2 |
78.5 ± 1.9 |
3.37 ± 0.13 |
1.90 ± 0.07 |
| MX2 |
158.3 ± 2.1 |
40.1 ± 1.1 |
48.4 ± 2.0 |
80.7 ± 2.0 |
3.95 ± 0.14 |
1.96 ± 0.07 |
| MX3 |
163.3 ± 2.0 |
35.7 ± 0.9 |
44.2 ± 1.9 |
82.8 ± 2.1 |
4.58 ± 0.16 |
1.97 ± 0.07 |
| RH8 |
181.1 ± 2.7 |
25.0 ± 0.7 |
32.4 ± 1.4 |
86.6 ± 2.2 |
7.24 ± 0.26 |
2.09 ± 0.07 |
| RH9 |
175.4 ± 2.3 |
27.5 ± 0.7 |
35.3 ± 1.5 |
85.8 ± 2.1 |
6.37 ± 0.21 |
2.05 ± 0.07 |
| RH10 |
175.4 ± 2.3 |
27.5 ± 0.7 |
35.3 ± 1.5 |
85.8 ± 2.1 |
6.37 ± 0.21 |
2.05 ± 0.07 |
| Average |
165.8 |
33.6 |
41.2 |
83.0 |
5.5 |
2.0 |
| Median |
175.4 |
35.7 |
44.2 |
85.8 |
6.4 |
2.0 |
| Deviation |
18.5 |
9.9 |
10.1 |
4.2 |
2.2 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
64.1 ± 5.7 |
57.8 ± 2.6 |
65.2 ± 4.9 |
93.7 ± 3.8 |
1.11 ± 0.10 |
0.68 ± 0.04 |
| VC |
93.1 ± 8.6 |
24.9 ± 1.0 |
32.2 ± 2.4 |
107.3 ± 4.1 |
3.73 ± 0.29 |
0.87 ± 0.05 |
| MX1 |
72.0 ± 6.3 |
53.5 ± 2.3 |
62.0 ± 4.6 |
96.3 ± 3.8 |
1.35 ± 0.12 |
0.75 ± 0.05 |
| MX2 |
76.4 ± 6.6 |
48.4 ± 2.0 |
57.7 ± 4.3 |
98.9 ± 3.8 |
1.58 ± 0.14 |
0.77 ± 0.05 |
| MX3 |
78.4 ± 6.9 |
43.1 ± 1.8 |
52.6 ± 3.9 |
101.3 ± 3.9 |
1.82 ± 0.17 |
0.77 ± 0.06 |
| RH8 |
86.7 ± 7.7 |
30.3 ± 1.2 |
38.6 ± 2.9 |
105.9 ± 4.0 |
2.86 ± 0.24 |
0.82 ± 0.06 |
| RH9 |
84.8 ± 7.3 |
33.3 ± 1.4 |
42.1 ± 3.2 |
105.0 ± 4.0 |
2.55 ± 0.22 |
0.81 ± 0.06 |
| RH10 |
84.8 ± 7.3 |
33.3 ± 1.4 |
42.1 ± 3.2 |
105.0 ± 4.0 |
2.55 ± 0.22 |
0.81 ± 0.06 |
| Average |
80.0 |
40.6 |
49.1 |
101.7 |
2.2 |
0.8 |
| Median |
84.8 |
43.1 |
52.6 |
105.0 |
2.5 |
0.8 |
| Deviation |
9.2 |
11.9 |
12.0 |
4.9 |
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)
| 
