Database: Wind Shock Analysis
Event ID: 19983600956
Observation time: 12/26/1998 360.41432 0956 [UT]
|
|
General
Information (About, Top)
| Year |
1998 |
| Fractional day of year |
360.414323 |
| Arrival time of shock [seconds of day] |
35797.5 ± 15.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
50.933 |
| Y GSE location of spacecraft [Re] |
-53.083 |
| Z GSE location of spacecraft [Re] |
-21.861 |
| Upstream plasma points selected for analysis |
0010 |
| Upstream field points selected for analysis |
0332 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0295 |
| Minimum chisq/dof for RH8,RH9,RH10 |
3.87, 24.85, 26.11 |
Event added to database
|
Mon Feb 14 11:07:28 2005
|
Event last processed
|
Mon Mar 30 18:23:34 2009
|
Method selected
|
RH09
|
Propagation delay to Earth [minutes]
|
8.050 ± 3.872
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-464.3 ± 1.4 |
-476.5 ± 2.9 |
| Vy GSE [km/s] |
4.9 ± 2.4 |
20.7 ± 2.9 |
| Vz GSE [km/s] |
-23.6 ± 4.3 |
-60.1 ± 6.5 |
| Wi [km/s] |
44.5 ± 0.6 |
49.8 ± 1.7 |
| We [km/s] |
1406.4 ± 19.5 |
1576.3 ± 52.3 |
| Ni [n/cc] |
5.9 ± 0.1 |
9.2 ± 0.4 |
| Bx GSE [nT] |
-3.4 ± 0.2 |
-5.0 ± 0.3 |
| By GSE [nT] |
6.4 ± 0.2 |
9.0 ± 0.3 |
| Bz GSE [nT] |
3.6 ± 0.4 |
6.2 ± 0.6 |
Plasma Beta
|
0.372 ± 0.375
|
0.330 ± 0.330
|
Sound Speed [km/s]
|
57.42 ± 0.80
|
64.35 ± 2.14
|
Alfven Speed [km/s]
|
72.98 ± 0.95
|
86.83 ± 2.56
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.716 ± 0.537 |
0.505 ± 0.718 |
-0.482 ± 0.441 |
-28.83 ± 29.94 |
144.82 ± 56.29 |
| VC |
-0.302 ± 0.075 |
0.386 ± 0.072 |
-0.872 ± 0.519 |
-60.67 ± 4.33 |
128.07 ± 9.43 |
| MX1 |
-0.375 ± 0.112 |
0.523 ± 0.127 |
-0.765 ± 0.561 |
-49.94 ± 10.58 |
125.69 ± 8.26 |
| MX2 |
-0.379 ± 0.111 |
0.520 ± 0.126 |
-0.766 ± 0.561 |
-49.96 ± 10.58 |
126.07 ± 8.04 |
| MX3 |
-0.385 ± 0.109 |
0.515 ± 0.124 |
-0.766 ± 0.561 |
-49.98 ± 10.57 |
126.83 ± 7.70 |
| RH08 |
-0.861 ± 0.008 |
-0.509 ± 0.013 |
-0.006 ± 0.006 |
-0.32 ± 0.67 |
210.58 ± 0.90 |
| RH09 |
-0.794 ± 0.043 |
0.162 ± 0.068 |
-0.587 ± 0.508 |
-35.92 ± 4.03 |
168.47 ± 4.90 |
| RH10 |
-0.814 ± 0.041 |
0.137 ± 0.070 |
-0.564 ± 0.495 |
-34.35 ± 4.00 |
170.47 ± 4.87 |
| Average |
-0.578 |
0.280 |
-0.601 |
-38.746 |
150.125 |
| Median |
-0.385 |
0.505 |
-0.587 |
-35.916 |
144.816 |
| Deviation |
0.238 |
0.357 |
0.274 |
18.746 |
30.796 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
61.1 ± 3.1 |
449.3 ± 18.9 |
1.55 ± 0.07 |
| VC |
87.6 ± 3.3 |
289.1 ± 25.0 |
1.55 ± 0.07 |
| MX1 |
76.7 ± 3.3 |
318.6 ± 24.0 |
1.55 ± 0.07 |
| MX2 |
76.8 ± 3.3 |
320.2 ± 24.0 |
1.55 ± 0.07 |
| MX3 |
76.9 ± 3.3 |
323.3 ± 24.0 |
1.55 ± 0.07 |
| RH08 |
87.3 ± 1.3 |
404.3 ± 7.5 |
1.55 ± 0.07 |
| RH09 |
78.6 ± 2.7 |
483.7 ± 18.8 |
1.55 ± 0.07 |
| RH10 |
78.7 ± 2.7 |
489.5 ± 18.3 |
1.55 ± 0.07 |
| Average |
78.0 |
384.7 |
1.55 |
| Median |
78.6 |
404.3 |
1.55 |
| Deviation |
8.2 |
81.7 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
103.0 ± 3.2 |
22.5 ± 0.2 |
35.2 ± 0.5 |
90.1 ± 0.8 |
4.59 ± 0.17 |
1.14 ± 0.04 |
| VC |
126.4 ± 4.5 |
1.9 ± 0.0 |
3.1 ± 0.0 |
92.8 ± 0.8 |
65.76 ± 2.77 |
1.36 ± 0.06 |
| MX1 |
123.7 ± 4.4 |
10.4 ± 0.1 |
16.7 ± 0.2 |
92.3 ± 0.8 |
11.89 ± 0.50 |
1.34 ± 0.05 |
| MX2 |
123.7 ± 4.4 |
10.4 ± 0.1 |
16.7 ± 0.2 |
92.3 ± 0.8 |
11.94 ± 0.50 |
1.34 ± 0.05 |
| MX3 |
123.8 ± 4.4 |
10.3 ± 0.1 |
16.6 ± 0.2 |
92.3 ± 0.8 |
12.02 ± 0.50 |
1.34 ± 0.05 |
| RH8 |
7.0 ± 1.9 |
2.1 ± 0.0 |
3.4 ± 0.0 |
92.8 ± 0.8 |
3.30 ± 0.90 |
0.08 ± 0.02 |
| RH9 |
100.7 ± 2.9 |
8.9 ± 0.1 |
14.4 ± 0.2 |
92.4 ± 0.8 |
11.28 ± 0.40 |
1.09 ± 0.04 |
| RH10 |
97.5 ± 2.7 |
8.9 ± 0.1 |
14.3 ± 0.2 |
92.4 ± 0.8 |
11.00 ± 0.38 |
1.06 ± 0.03 |
| Average |
100.7 |
9.4 |
15.0 |
92.2 |
16.5 |
1.1 |
| Median |
123.7 |
10.3 |
16.6 |
92.4 |
11.9 |
1.3 |
| Deviation |
39.7 |
6.4 |
10.0 |
0.9 |
20.2 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
68.7 ± 5.2 |
25.7 ± 0.7 |
41.9 ± 1.2 |
105.0 ± 2.8 |
2.68 ± 0.27 |
0.66 ± 0.07 |
| VC |
84.8 ± 6.7 |
2.2 ± 0.1 |
3.7 ± 0.1 |
108.1 ± 2.8 |
38.57 ± 4.07 |
0.79 ± 0.08 |
| MX1 |
82.9 ± 6.4 |
11.9 ± 0.3 |
19.9 ± 0.6 |
107.4 ± 2.8 |
6.97 ± 0.72 |
0.77 ± 0.08 |
| MX2 |
82.9 ± 6.4 |
11.9 ± 0.3 |
19.8 ± 0.6 |
107.4 ± 2.8 |
7.00 ± 0.72 |
0.77 ± 0.08 |
| MX3 |
83.0 ± 6.4 |
11.8 ± 0.3 |
19.7 ± 0.6 |
107.4 ± 2.8 |
7.05 ± 0.73 |
0.77 ± 0.08 |
| RH8 |
4.3 ± 2.6 |
2.4 ± 0.1 |
4.1 ± 0.1 |
108.1 ± 2.8 |
1.78 ± 1.06 |
0.04 ± 0.02 |
| RH9 |
67.0 ± 5.3 |
10.2 ± 0.3 |
17.1 ± 0.5 |
107.6 ± 2.8 |
6.56 ± 0.69 |
0.62 ± 0.06 |
| RH10 |
64.8 ± 5.2 |
10.2 ± 0.3 |
17.0 ± 0.5 |
107.6 ± 2.8 |
6.39 ± 0.67 |
0.60 ± 0.06 |
| Average |
67.3 |
10.8 |
17.9 |
107.3 |
9.6 |
0.6 |
| Median |
82.9 |
11.8 |
19.7 |
107.6 |
7.0 |
0.8 |
| Deviation |
26.8 |
7.3 |
11.8 |
1.0 |
11.9 |
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)
| 
