Database: Wind Shock Analysis
Event ID: 19982340211
Observation time: 08/22/1998 234.09116 0211 [UT]
|
|
General
Information (About, Top)
| Year |
1998 |
| Fractional day of year |
234.091163 |
| Arrival time of shock [seconds of day] |
7876.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
82.211 |
| Y GSE location of spacecraft [Re] |
-32.762 |
| Z GSE location of spacecraft [Re] |
-5.259 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0247 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0215 |
| Minimum chisq/dof for RH8,RH9,RH10 |
21.72, 40.36, 41.56 |
Event added to database
|
Mon Feb 14 11:06:56 2005
|
Event last processed
|
Mon Mar 30 17:58:02 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
14.916 ± 0.459
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-294.5 ± 0.7 |
-306.0 ± 0.5 |
| Vy GSE [km/s] |
-15.1 ± 1.0 |
-29.7 ± 0.7 |
| Vz GSE [km/s] |
-12.4 ± 0.7 |
-16.5 ± 0.5 |
| Wi [km/s] |
15.3 ± 0.2 |
17.1 ± 0.3 |
| We [km/s] |
484.9 ± 6.6 |
542.0 ± 10.1 |
| Ni [n/cc] |
18.9 ± 0.2 |
28.7 ± 0.4 |
| Bx GSE [nT] |
-1.0 ± 0.1 |
-2.0 ± 0.1 |
| By GSE [nT] |
0.4 ± 0.2 |
1.9 ± 0.5 |
| Bz GSE [nT] |
2.6 ± 0.1 |
3.3 ± 0.2 |
Plasma Beta
|
1.220 ± 1.203
|
0.944 ± 0.939
|
Sound Speed [km/s]
|
19.79 ± 0.27
|
22.13 ± 0.41
|
Alfven Speed [km/s]
|
13.93 ± 0.70
|
17.67 ± 0.61
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.981 ± 0.234 |
-0.138 ± 1.294 |
0.137 ± 0.136 |
7.88 ± 61.69 |
188.02 ± 75.59 |
| VC |
-0.603 ± 0.032 |
-0.767 ± 0.026 |
-0.217 ± 0.213 |
-12.51 ± 2.65 |
231.82 ± 2.34 |
| MX1 |
-0.732 ± 0.079 |
-0.630 ± 0.085 |
0.259 ± 0.253 |
15.02 ± 12.17 |
220.73 ± 6.07 |
| MX2 |
-0.798 ± 0.075 |
-0.597 ± 0.100 |
0.083 ± 0.083 |
4.75 ± 6.11 |
216.78 ± 7.18 |
| MX3 |
-0.836 ± 0.072 |
-0.541 ± 0.111 |
-0.091 ± 0.091 |
-5.22 ± 3.87 |
212.94 ± 7.58 |
| RH08 |
-0.787 ± 0.006 |
-0.606 ± 0.008 |
-0.117 ± 0.117 |
-6.74 ± 0.58 |
217.60 ± 0.55 |
| RH09 |
-0.995 ± 0.006 |
0.079 ± 0.051 |
-0.061 ± 0.061 |
-3.52 ± 4.00 |
175.49 ± 2.92 |
| RH10 |
-0.995 ± 0.006 |
0.079 ± 0.058 |
-0.061 ± 0.061 |
-3.52 ± 4.06 |
175.49 ± 3.33 |
| Average |
-0.841 |
-0.390 |
-0.009 |
-0.482 |
204.859 |
| Median |
-0.798 |
-0.541 |
-0.061 |
-3.523 |
216.780 |
| Deviation |
0.142 |
0.341 |
0.155 |
8.963 |
21.902 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
63.3 ± 1.6 |
326.4 ± 2.0 |
1.52 ± 0.02 |
| VC |
84.1 ± 2.0 |
247.3 ± 2.9 |
1.52 ± 0.02 |
| MX1 |
66.3 ± 2.0 |
270.6 ± 2.7 |
1.52 ± 0.02 |
| MX2 |
74.5 ± 1.7 |
294.4 ± 2.7 |
1.52 ± 0.02 |
| MX3 |
82.6 ± 1.4 |
307.4 ± 2.6 |
1.52 ± 0.02 |
| RH08 |
85.6 ± 1.6 |
295.8 ± 2.7 |
1.52 ± 0.02 |
| RH09 |
72.4 ± 2.2 |
323.2 ± 1.9 |
1.52 ± 0.02 |
| RH10 |
72.4 ± 2.2 |
323.2 ± 1.9 |
1.52 ± 0.02 |
| Average |
75.2 |
298.5 |
1.52 |
| Median |
74.5 |
307.4 |
1.52 |
| Deviation |
8.3 |
28.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
37.2 ± 0.8 |
5.2 ± 0.2 |
6.3 ± 0.3 |
23.6 ± 0.4 |
7.11 ± 0.38 |
1.57 ± 0.05 |
| VC |
55.3 ± 1.1 |
1.2 ± 0.0 |
1.4 ± 0.1 |
24.2 ± 0.4 |
47.30 ± 2.45 |
2.29 ± 0.08 |
| MX1 |
48.7 ± 1.1 |
4.7 ± 0.2 |
5.6 ± 0.3 |
23.8 ± 0.4 |
10.47 ± 0.56 |
2.05 ± 0.07 |
| MX2 |
51.3 ± 1.1 |
3.1 ± 0.1 |
3.7 ± 0.2 |
24.0 ± 0.4 |
16.76 ± 0.89 |
2.14 ± 0.07 |
| MX3 |
51.9 ± 1.0 |
1.5 ± 0.0 |
1.8 ± 0.1 |
24.2 ± 0.4 |
35.61 ± 1.86 |
2.15 ± 0.07 |
| RH8 |
53.5 ± 1.1 |
0.9 ± 0.0 |
1.1 ± 0.1 |
24.2 ± 0.4 |
61.07 ± 3.18 |
2.21 ± 0.07 |
| RH9 |
30.6 ± 0.6 |
3.5 ± 0.1 |
4.2 ± 0.2 |
24.0 ± 0.4 |
8.79 ± 0.47 |
1.28 ± 0.04 |
| RH10 |
30.6 ± 0.6 |
3.5 ± 0.1 |
4.2 ± 0.2 |
24.0 ± 0.4 |
8.79 ± 0.47 |
1.28 ± 0.04 |
| Average |
44.9 |
2.9 |
3.5 |
24.0 |
24.5 |
1.9 |
| Median |
51.3 |
3.5 |
4.2 |
24.0 |
16.8 |
2.1 |
| Deviation |
10.4 |
1.6 |
1.9 |
0.2 |
20.8 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
24.5 ± 0.4 |
6.4 ± 0.2 |
7.9 ± 0.3 |
27.6 ± 0.6 |
3.85 ± 0.17 |
0.89 ± 0.03 |
| VC |
36.3 ± 0.4 |
1.4 ± 0.0 |
1.8 ± 0.1 |
28.3 ± 0.6 |
25.60 ± 0.77 |
1.28 ± 0.03 |
| MX1 |
32.2 ± 0.5 |
5.7 ± 0.1 |
7.1 ± 0.2 |
27.7 ± 0.6 |
5.70 ± 0.20 |
1.16 ± 0.03 |
| MX2 |
33.8 ± 0.4 |
3.7 ± 0.1 |
4.7 ± 0.2 |
28.1 ± 0.6 |
9.10 ± 0.31 |
1.21 ± 0.03 |
| MX3 |
34.1 ± 0.4 |
1.8 ± 0.0 |
2.3 ± 0.1 |
28.3 ± 0.6 |
19.27 ± 0.66 |
1.21 ± 0.04 |
| RH8 |
35.2 ± 0.4 |
1.1 ± 0.0 |
1.4 ± 0.0 |
28.3 ± 0.6 |
33.10 ± 1.09 |
1.24 ± 0.04 |
| RH9 |
20.1 ± 0.5 |
4.2 ± 0.1 |
5.3 ± 0.2 |
28.0 ± 0.6 |
4.75 ± 0.24 |
0.72 ± 0.03 |
| RH10 |
20.1 ± 0.5 |
4.2 ± 0.1 |
5.3 ± 0.2 |
28.0 ± 0.6 |
4.75 ± 0.24 |
0.72 ± 0.03 |
| Average |
29.5 |
3.6 |
4.5 |
28.0 |
13.3 |
1.1 |
| Median |
33.8 |
4.2 |
5.3 |
28.1 |
9.1 |
1.2 |
| Deviation |
6.8 |
2.0 |
2.5 |
0.3 |
11.3 |
0.2 |
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)
| 
