Database: Ace Shock Analysis
Event ID: 20001950919
Observation time: 07/13/2000 195.38819 0919 [UT]
|
|
General
Information (About, Top)
| Year |
2000 |
| Fractional day of year |
195.388194 |
| Arrival time of shock [seconds of day] |
33540.0 ± 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 |
0038 |
| Downstream plasma points selected for analysis |
0009
|
| Downstream field points selected for analysis |
0034 |
| Minimum chisq/dof for RH8,RH9,RH10 |
16.97, 21.81, 23.95 |
Event added to database
|
Sat Apr 30 21:46:50 2005
|
Event last processed
|
Wed Oct 15 16:27:50 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.002 ± 0.177
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-600.2 ± 7.6 |
-644.8 ± 11.0 |
| Vy GSE [km/s] |
10.7 ± 4.9 |
-34.8 ± 12.0 |
| Vz GSE [km/s] |
40.0 ± 11.9 |
6.6 ± 11.3 |
| Wi [km/s] |
64.6 ± 3.9 |
82.4 ± 3.2 |
| We [km/s] |
2043.0 ± 124.4 |
2606.7 ± 100.4 |
| Ni [n/cc] |
9.9 ± 1.3 |
19.6 ± 1.5 |
| Bx GSE [nT] |
-0.1 ± 2.4 |
-11.1 ± 1.7 |
| By GSE [nT] |
10.0 ± 1.9 |
12.4 ± 1.3 |
| Bz GSE [nT] |
-1.9 ± 2.1 |
-0.7 ± 3.3 |
Plasma Beta
|
0.816 ± 0.868
|
1.107 ± 1.041
|
Sound Speed [km/s]
|
83.86 ± 5.02
|
107.18 ± 4.02
|
Alfven Speed [km/s]
|
72.65 ± 5.45
|
80.26 ± 8.07
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.243 ± 0.537 |
-0.946 ± 0.153 |
0.213 ± 0.210 |
12.31 ± 18.61 |
255.63 ± 32.48 |
| VC |
-0.629 ± 0.156 |
-0.638 ± 0.154 |
-0.445 ± 0.413 |
-26.45 ± 11.30 |
225.41 ± 12.83 |
| MX1 |
-0.444 ± 0.618 |
-0.884 ± 0.314 |
-0.145 ± 0.144 |
-8.33 ± 20.14 |
243.32 ± 40.01 |
| MX2 |
-0.393 ± 0.443 |
-0.836 ± 0.225 |
-0.383 ± 0.363 |
-22.49 ± 14.48 |
244.82 ± 30.20 |
| MX3 |
-0.459 ± 0.499 |
-0.766 ± 0.328 |
-0.450 ± 0.417 |
-26.74 ± 21.43 |
239.09 ± 36.72 |
| RH08 |
0.043 ± 0.042 |
-0.143 ± 0.013 |
-0.989 ± 0.212 |
-81.43 ± 0.00 |
286.80 ± 16.93 |
| RH09 |
-0.052 ± 0.070 |
-0.703 ± 0.050 |
-0.709 ± 0.556 |
-45.19 ± 4.03 |
265.74 ± 5.72 |
| RH10 |
-0.056 ± 0.070 |
-0.745 ± 0.046 |
-0.665 ± 0.543 |
-41.67 ± 3.98 |
265.74 ± 5.36 |
| Average |
-0.279 |
-0.708 |
-0.447 |
-29.999 |
253.319 |
| Median |
-0.243 |
-0.745 |
-0.445 |
-26.448 |
255.625 |
| Deviation |
0.239 |
0.249 |
0.367 |
27.648 |
19.227 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
21.2 ± 8.3 |
238.6 ± 24.5 |
2.02 ± 0.27 |
| VC |
57.2 ± 15.2 |
497.5 ± 33.0 |
2.02 ± 0.27 |
| MX1 |
34.2 ± 13.7 |
380.8 ± 26.6 |
2.02 ± 0.27 |
| MX2 |
41.4 ± 15.8 |
349.8 ± 27.8 |
2.02 ± 0.27 |
| MX3 |
47.9 ± 15.8 |
391.4 ± 29.7 |
2.02 ± 0.27 |
| RH08 |
88.9 ± 14.2 |
9.1 ± 25.9 |
2.02 ± 0.27 |
| RH09 |
55.4 ± 14.4 |
115.4 ± 23.9 |
2.02 ± 0.27 |
| RH10 |
52.0 ± 14.3 |
119.1 ± 23.6 |
2.02 ± 0.27 |
| Average |
49.8 |
262.7 |
2.02 |
| Median |
52.0 |
349.8 |
2.02 |
| Deviation |
19.8 |
169.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
94.4 ± 7.1 |
61.1 ± 3.1 |
67.7 ± 5.1 |
92.7 ± 4.0 |
1.54 ± 0.10 |
1.02 ± 0.06 |
| VC |
142.3 ± 6.4 |
30.8 ± 1.4 |
39.3 ± 3.0 |
106.7 ± 4.5 |
4.63 ± 0.36 |
1.34 ± 0.09 |
| MX1 |
127.8 ± 5.6 |
50.9 ± 2.4 |
60.1 ± 4.5 |
98.7 ± 4.2 |
2.51 ± 0.16 |
1.30 ± 0.07 |
| MX2 |
135.9 ± 5.2 |
44.9 ± 2.1 |
54.5 ± 4.1 |
101.6 ± 4.3 |
3.04 ± 0.22 |
1.34 ± 0.08 |
| MX3 |
139.8 ± 5.6 |
39.2 ± 1.8 |
48.7 ± 3.7 |
103.9 ± 4.4 |
3.58 ± 0.27 |
1.35 ± 0.09 |
| RH8 |
72.9 ± 10.4 |
1.1 ± 0.0 |
1.4 ± 0.1 |
111.1 ± 4.7 |
68.24 ± 12.90 |
0.66 ± 0.12 |
| RH9 |
117.2 ± 6.3 |
32.5 ± 1.5 |
41.2 ± 3.1 |
106.2 ± 4.5 |
3.62 ± 0.36 |
1.11 ± 0.10 |
| RH10 |
117.7 ± 5.8 |
35.6 ± 1.7 |
44.7 ± 3.4 |
105.2 ± 4.5 |
3.32 ± 0.31 |
1.12 ± 0.10 |
| Average |
118.5 |
37.0 |
44.7 |
103.3 |
11.3 |
1.2 |
| Median |
127.8 |
39.2 |
48.7 |
105.2 |
3.6 |
1.3 |
| Deviation |
24.1 |
17.7 |
20.0 |
5.6 |
23.0 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
46.5 ± 11.2 |
70.1 ± 5.9 |
74.8 ± 7.5 |
114.2 ± 3.6 |
0.67 ± 0.17 |
0.41 ± 0.11 |
| VC |
71.7 ± 9.5 |
36.0 ± 2.5 |
43.5 ± 4.4 |
129.1 ± 4.8 |
2.01 ± 0.35 |
0.56 ± 0.08 |
| MX1 |
63.0 ± 8.5 |
59.0 ± 4.5 |
66.4 ± 6.7 |
120.4 ± 4.1 |
1.08 ± 0.19 |
0.52 ± 0.08 |
| MX2 |
68.3 ± 8.6 |
52.1 ± 3.9 |
60.2 ± 6.1 |
123.5 ± 4.3 |
1.32 ± 0.24 |
0.55 ± 0.08 |
| MX3 |
70.5 ± 8.8 |
45.6 ± 3.3 |
53.8 ± 5.4 |
126.1 ± 4.6 |
1.56 ± 0.27 |
0.56 ± 0.08 |
| RH8 |
37.7 ± 10.0 |
1.3 ± 0.1 |
1.6 ± 0.2 |
134.1 ± 5.2 |
30.35 ± 9.09 |
0.28 ± 0.08 |
| RH9 |
60.5 ± 8.6 |
37.9 ± 2.7 |
45.6 ± 4.6 |
128.6 ± 4.8 |
1.61 ± 0.32 |
0.47 ± 0.08 |
| RH10 |
60.3 ± 8.7 |
41.4 ± 3.0 |
49.4 ± 5.0 |
127.5 ± 4.7 |
1.47 ± 0.29 |
0.47 ± 0.08 |
| Average |
59.8 |
42.9 |
49.4 |
125.4 |
5.0 |
0.5 |
| Median |
63.0 |
45.6 |
53.8 |
127.5 |
1.6 |
0.5 |
| Deviation |
12.0 |
20.4 |
22.1 |
6.1 |
10.2 |
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)
| 
