Database: Ace Shock Analysis
Event ID: 20001561423
Observation time: 06/04/2000 156.59936 1423 [UT]
|
|
General
Information (About, Top)
| Year |
2000 |
| Fractional day of year |
156.599363 |
| Arrival time of shock [seconds of day] |
51785.0 ± 16.0 |
| 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 |
0008 |
| Upstream field points selected for analysis |
0033 |
| Downstream plasma points selected for analysis |
0010
|
| Downstream field points selected for analysis |
0039 |
| Minimum chisq/dof for RH8,RH9,RH10 |
5.69, 16.52, 20.17 |
Event added to database
|
Sat Apr 30 21:46:20 2005
|
Event last processed
|
Wed Oct 15 16:07:45 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] |
-407.1 ± 2.8 |
-521.2 ± 2.6 |
| Vy GSE [km/s] |
19.7 ± 5.8 |
11.8 ± 19.8 |
| Vz GSE [km/s] |
-2.3 ± 3.5 |
16.9 ± 5.5 |
| Wi [km/s] |
31.1 ± 2.1 |
55.3 ± 9.0 |
| We [km/s] |
982.1 ± 67.7 |
1747.5 ± 284.6 |
| Ni [n/cc] |
2.6 ± 0.2 |
4.9 ± 0.5 |
| Bx GSE [nT] |
2.8 ± 0.1 |
2.6 ± 0.4 |
| By GSE [nT] |
-0.1 ± 0.4 |
-2.4 ± 1.8 |
| Bz GSE [nT] |
4.1 ± 0.2 |
9.9 ± 0.7 |
Plasma Beta
|
0.214 ± 0.217
|
0.300 ± 0.360
|
Sound Speed [km/s]
|
40.09 ± 2.76
|
71.37 ± 11.60
|
Alfven Speed [km/s]
|
67.41 ± 1.90
|
104.41 ± 8.52
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.905 ± 0.118 |
-0.336 ± 0.296 |
-0.261 ± 0.255 |
-15.14 ± 9.81 |
200.39 ± 18.74 |
| VC |
-0.983 ± 0.016 |
-0.076 ± 0.170 |
0.165 ± 0.163 |
9.48 ± 2.97 |
184.44 ± 9.93 |
| MX1 |
-0.993 ± 0.011 |
-0.054 ± 0.151 |
-0.104 ± 0.104 |
-5.98 ± 3.72 |
183.08 ± 8.70 |
| MX2 |
-0.997 ± 0.004 |
-0.007 ± 0.121 |
-0.073 ± 0.073 |
-4.20 ± 2.88 |
180.40 ± 6.97 |
| MX3 |
-0.998 ± 0.004 |
0.024 ± 0.105 |
-0.053 ± 0.053 |
-3.05 ± 2.76 |
178.63 ± 6.00 |
| RH08 |
-0.996 ± 0.001 |
-0.061 ± 0.009 |
0.061 ± 0.061 |
3.52 ± 0.84 |
183.51 ± 0.54 |
| RH09 |
-0.651 ± 0.055 |
-0.689 ± 0.052 |
-0.318 ± 0.307 |
-18.57 ± 2.79 |
226.63 ± 4.50 |
| RH10 |
-0.698 ± 0.050 |
-0.642 ± 0.054 |
-0.318 ± 0.307 |
-18.57 ± 3.99 |
222.62 ± 4.26 |
| Average |
-0.903 |
-0.230 |
-0.113 |
-6.564 |
194.963 |
| Median |
-0.983 |
-0.061 |
-0.073 |
-4.205 |
184.444 |
| Deviation |
0.145 |
0.290 |
0.177 |
10.276 |
19.489 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
44.6 ± 2.3 |
579.0 ± 2.9 |
1.88 ± 0.33 |
| VC |
65.8 ± 2.3 |
645.0 ± 3.7 |
1.88 ± 0.33 |
| MX1 |
50.4 ± 2.4 |
639.5 ± 3.8 |
1.88 ± 0.33 |
| MX2 |
52.0 ± 2.5 |
643.6 ± 4.0 |
1.88 ± 0.33 |
| MX3 |
53.1 ± 2.6 |
645.2 ± 4.1 |
1.88 ± 0.33 |
| RH08 |
59.8 ± 2.3 |
648.8 ± 3.8 |
1.88 ± 0.33 |
| RH09 |
52.3 ± 4.0 |
412.6 ± 2.5 |
1.88 ± 0.33 |
| RH10 |
50.3 ± 3.8 |
442.0 ± 21.3 |
1.88 ± 0.33 |
| Average |
53.5 |
582.0 |
1.88 |
| Median |
52.3 |
643.6 |
1.88 |
| Deviation |
6.5 |
98.5 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
216.6 ± 2.3 |
26.0 ± 1.4 |
48.0 ± 1.4 |
74.0 ± 1.7 |
8.36 ± 0.45 |
2.93 ± 0.08 |
| VC |
246.6 ± 2.7 |
14.3 ± 0.7 |
27.6 ± 0.8 |
77.2 ± 1.7 |
17.24 ± 0.82 |
3.20 ± 0.07 |
| MX1 |
236.1 ± 2.5 |
22.9 ± 1.2 |
43.0 ± 1.2 |
75.0 ± 1.7 |
10.32 ± 0.52 |
3.15 ± 0.08 |
| MX2 |
237.7 ± 2.7 |
22.1 ± 1.1 |
41.5 ± 1.2 |
75.3 ± 1.7 |
10.79 ± 0.54 |
3.16 ± 0.08 |
| MX3 |
238.3 ± 2.8 |
21.5 ± 1.1 |
40.4 ± 1.1 |
75.5 ± 1.7 |
11.12 ± 0.55 |
3.16 ± 0.08 |
| RH8 |
244.6 ± 2.7 |
17.7 ± 0.9 |
33.9 ± 1.0 |
76.4 ± 1.7 |
13.82 ± 0.67 |
3.20 ± 0.07 |
| RH9 |
160.3 ± 3.7 |
21.9 ± 1.1 |
41.2 ± 1.2 |
75.3 ± 1.7 |
7.33 ± 0.44 |
2.13 ± 0.08 |
| RH10 |
169.9 ± 3.4 |
23.0 ± 1.2 |
43.0 ± 1.2 |
75.0 ± 1.7 |
7.41 ± 0.44 |
2.27 ± 0.08 |
| Average |
218.8 |
21.2 |
39.8 |
75.5 |
10.8 |
2.9 |
| Median |
237.7 |
22.1 |
41.5 |
75.3 |
10.8 |
3.2 |
| Deviation |
34.4 |
3.6 |
6.3 |
0.9 |
3.4 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
115.8 ± 5.7 |
44.2 ± 5.4 |
74.4 ± 6.1 |
119.1 ± 5.1 |
2.67 ± 0.47 |
0.97 ± 0.05 |
| VC |
130.8 ± 2.7 |
24.2 ± 2.7 |
42.8 ± 3.5 |
124.8 ± 4.8 |
5.48 ± 0.78 |
1.05 ± 0.05 |
| MX1 |
124.6 ± 2.2 |
38.9 ± 4.6 |
66.6 ± 5.4 |
120.9 ± 5.0 |
3.25 ± 0.44 |
1.03 ± 0.05 |
| MX2 |
125.5 ± 2.4 |
37.4 ± 4.4 |
64.3 ± 5.2 |
121.4 ± 4.9 |
3.40 ± 0.44 |
1.04 ± 0.06 |
| MX3 |
125.9 ± 2.7 |
36.4 ± 4.3 |
62.7 ± 5.1 |
121.7 ± 4.9 |
3.50 ± 0.45 |
1.04 ± 0.06 |
| RH8 |
129.5 ± 2.4 |
30.0 ± 3.4 |
52.4 ± 4.3 |
123.5 ± 4.8 |
4.37 ± 0.61 |
1.05 ± 0.05 |
| RH9 |
86.4 ± 12.7 |
37.2 ± 4.4 |
63.9 ± 5.2 |
121.5 ± 4.9 |
2.38 ± 0.63 |
0.71 ± 0.10 |
| RH10 |
91.0 ± 11.7 |
39.0 ± 4.6 |
66.7 ± 5.4 |
120.9 ± 5.0 |
2.39 ± 0.59 |
0.75 ± 0.09 |
| Average |
116.2 |
35.9 |
61.7 |
121.7 |
3.4 |
1.0 |
| Median |
125.5 |
37.4 |
64.3 |
121.5 |
3.4 |
1.0 |
| Deviation |
17.6 |
6.1 |
9.7 |
1.7 |
1.1 |
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)
| 
