Database: Wind Shock Analysis
Event ID: 19990490248
Observation time: 02/18/1999 49.11689 0248 [UT]
|
|
General
Information (About, Top)
| Year |
1999 |
| Fractional day of year |
49.116892 |
| Arrival time of shock [seconds of day] |
10099.5 ± 9.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
-9.187 |
| Y GSE location of spacecraft [Re] |
-61.526 |
| Z GSE location of spacecraft [Re] |
-23.811 |
| Upstream plasma points selected for analysis |
0003 |
| Upstream field points selected for analysis |
0294 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0273 |
| Minimum chisq/dof for RH8,RH9,RH10 |
4.31, 7.20, 7.91 |
Event added to database
|
Mon Feb 14 11:07:42 2005
|
Event last processed
|
Mon Mar 30 18:30:43 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
-1.512 ± 0.493
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-390.6 ± 17.8 |
-604.6 ± 6.1 |
| Vy GSE [km/s] |
-23.2 ± 10.3 |
-36.3 ± 10.0 |
| Vz GSE [km/s] |
-65.5 ± 18.5 |
-102.1 ± 18.9 |
| Wi [km/s] |
46.7 ± 10.2 |
138.6 ± 8.8 |
| We [km/s] |
1476.3 ± 323.2 |
4382.4 ± 278.2 |
| Ni [n/cc] |
3.3 ± 0.4 |
10.9 ± 0.7 |
| Bx GSE [nT] |
-4.7 ± 0.4 |
-5.2 ± 0.7 |
| By GSE [nT] |
4.5 ± 0.3 |
17.4 ± 0.6 |
| Bz GSE [nT] |
2.8 ± 0.9 |
7.0 ± 2.8 |
Plasma Beta
|
0.307 ± 0.231
|
1.170 ± 1.079
|
Sound Speed [km/s]
|
60.27 ± 13.20
|
178.91 ± 11.36
|
Alfven Speed [km/s]
|
85.83 ± 1.58
|
130.11 ± 8.88
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.960 ± 0.071 |
-0.079 ± 0.106 |
0.267 ± 0.261 |
15.51 ± 15.10 |
184.71 ± 6.33 |
| VC |
-0.985 ± 0.017 |
-0.062 ± 0.062 |
-0.163 ± 0.162 |
-9.39 ± 5.90 |
183.62 ± 3.59 |
| MX1 |
-0.994 ± 0.012 |
0.012 ± 0.076 |
-0.109 ± 0.109 |
-6.27 ± 6.12 |
179.32 ± 4.41 |
| MX2 |
-0.992 ± 0.012 |
0.016 ± 0.079 |
-0.127 ± 0.126 |
-7.28 ± 5.38 |
179.09 ± 4.59 |
| MX3 |
-0.991 ± 0.012 |
0.017 ± 0.081 |
-0.134 ± 0.133 |
-7.69 ± 5.09 |
178.99 ± 4.67 |
| RH08 |
-0.989 ± 0.003 |
0.043 ± 0.017 |
-0.140 ± 0.139 |
-8.03 ± 1.04 |
177.49 ± 0.99 |
| RH09 |
-0.991 ± 0.010 |
0.043 ± 0.068 |
-0.128 ± 0.128 |
-7.38 ± 4.04 |
177.49 ± 3.91 |
| RH10 |
-0.991 ± 0.010 |
0.043 ± 0.069 |
-0.128 ± 0.128 |
-7.38 ± 4.03 |
177.49 ± 4.01 |
| Average |
-0.987 |
0.004 |
-0.083 |
-4.739 |
179.776 |
| Median |
-0.991 |
0.017 |
-0.128 |
-7.382 |
179.089 |
| Deviation |
0.011 |
0.048 |
0.142 |
8.230 |
2.828 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
46.7 ± 3.5 |
642.1 ± 18.4 |
3.20 ± 0.20 |
| VC |
56.9 ± 6.6 |
702.9 ± 20.0 |
3.20 ± 0.20 |
| MX1 |
51.6 ± 6.6 |
700.1 ± 19.5 |
3.20 ± 0.20 |
| MX2 |
52.1 ± 6.7 |
700.4 ± 19.6 |
3.20 ± 0.20 |
| MX3 |
52.2 ± 6.7 |
700.5 ± 19.7 |
3.20 ± 0.20 |
| RH08 |
51.3 ± 6.8 |
699.0 ± 19.7 |
3.20 ± 0.20 |
| RH09 |
50.9 ± 6.8 |
698.8 ± 19.6 |
3.20 ± 0.20 |
| RH10 |
50.9 ± 6.8 |
698.8 ± 19.6 |
3.20 ± 0.20 |
| Average |
51.6 |
692.8 |
3.20 |
| Median |
51.6 |
700.1 |
3.20 |
| Deviation |
2.8 |
20.5 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
282.6 ± 12.4 |
35.6 ± 5.2 |
58.9 ± 1.1 |
99.0 ± 6.0 |
8.08 ± 1.41 |
2.87 ± 0.29 |
| VC |
306.1 ± 19.7 |
27.6 ± 3.9 |
46.9 ± 0.9 |
101.6 ± 6.6 |
11.29 ± 2.14 |
3.03 ± 0.38 |
| MX1 |
304.9 ± 19.6 |
31.8 ± 4.6 |
53.3 ± 1.0 |
100.3 ± 6.3 |
9.78 ± 1.87 |
3.05 ± 0.38 |
| MX2 |
305.0 ± 19.9 |
31.4 ± 4.5 |
52.8 ± 1.0 |
100.4 ± 6.3 |
9.88 ± 1.89 |
3.05 ± 0.38 |
| MX3 |
305.0 ± 20.0 |
31.3 ± 4.5 |
52.6 ± 1.0 |
100.5 ± 6.4 |
9.93 ± 1.91 |
3.05 ± 0.38 |
| RH8 |
304.4 ± 20.3 |
32.1 ± 4.6 |
53.7 ± 1.0 |
100.2 ± 6.3 |
9.67 ± 1.87 |
3.05 ± 0.38 |
| RH9 |
304.3 ± 20.1 |
32.4 ± 4.7 |
54.2 ± 1.0 |
100.1 ± 6.3 |
9.58 ± 1.85 |
3.05 ± 0.38 |
| RH10 |
304.3 ± 20.1 |
32.4 ± 4.7 |
54.2 ± 1.0 |
100.1 ± 6.3 |
9.58 ± 1.85 |
3.05 ± 0.38 |
| Average |
302.1 |
31.8 |
53.3 |
100.3 |
9.7 |
3.0 |
| Median |
304.9 |
32.1 |
53.7 |
100.3 |
9.8 |
3.1 |
| Deviation |
7.9 |
2.2 |
3.3 |
0.7 |
0.9 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
85.9 ± 7.5 |
76.6 ± 2.7 |
89.3 ± 6.1 |
207.9 ± 6.0 |
1.12 ± 0.11 |
0.41 ± 0.04 |
| VC |
88.6 ± 7.2 |
59.4 ± 1.9 |
71.0 ± 4.8 |
213.5 ± 5.6 |
1.50 ± 0.17 |
0.42 ± 0.03 |
| MX1 |
88.4 ± 6.8 |
68.3 ± 2.3 |
80.7 ± 5.5 |
210.7 ± 5.8 |
1.30 ± 0.14 |
0.42 ± 0.03 |
| MX2 |
88.4 ± 7.0 |
67.6 ± 2.3 |
80.0 ± 5.5 |
211.0 ± 5.8 |
1.31 ± 0.14 |
0.42 ± 0.03 |
| MX3 |
88.3 ± 7.0 |
67.4 ± 2.3 |
79.7 ± 5.4 |
211.1 ± 5.8 |
1.32 ± 0.14 |
0.42 ± 0.03 |
| RH8 |
88.1 ± 7.1 |
69.0 ± 2.3 |
81.4 ± 5.6 |
210.5 ± 5.8 |
1.28 ± 0.14 |
0.42 ± 0.03 |
| RH9 |
88.2 ± 7.0 |
69.7 ± 2.4 |
82.1 ± 5.6 |
210.3 ± 5.8 |
1.27 ± 0.14 |
0.42 ± 0.03 |
| RH10 |
88.2 ± 7.0 |
69.7 ± 2.4 |
82.1 ± 5.6 |
210.3 ± 5.8 |
1.27 ± 0.14 |
0.42 ± 0.03 |
| Average |
88.0 |
68.4 |
80.8 |
210.7 |
1.3 |
0.4 |
| Median |
88.3 |
69.0 |
81.4 |
210.7 |
1.3 |
0.4 |
| Deviation |
0.9 |
4.7 |
5.0 |
1.5 |
0.1 |
0.0 |
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 Fri Jun 13 11:06:02 2014
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
