Database: Wind Shock Analysis
Event ID: 19950820937
Observation time: 03/23/1995 82.40095 0937 [UT]
|
|
General
Information (About, Top)
| Year |
1995 |
| Fractional day of year |
82.400955 |
| Arrival time of shock [seconds of day] |
34642.5 ± 6.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
213.750 |
| Y GSE location of spacecraft [Re] |
39.672 |
| Z GSE location of spacecraft [Re] |
17.500 |
| Upstream plasma points selected for analysis |
0011 |
| Upstream field points selected for analysis |
0289 |
| Downstream plasma points selected for analysis |
0011
|
| Downstream field points selected for analysis |
0284 |
| Minimum chisq/dof for RH8,RH9,RH10 |
5.09, 25.53, 33.61 |
Event added to database
|
Mon Feb 14 11:00:22 2005
|
Event last processed
|
Wed Mar 25 12:52:05 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
57.483 ± 2.740
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-291.5 ± 1.3 |
-335.9 ± 2.4 |
| Vy GSE [km/s] |
6.4 ± 0.5 |
11.7 ± 1.6 |
| Vz GSE [km/s] |
-5.8 ± 1.1 |
-14.8 ± 3.0 |
| Wi [km/s] |
19.3 ± 0.5 |
24.7 ± 1.2 |
| We [km/s] |
609.7 ± 16.0 |
782.3 ± 39.0 |
| Ni [n/cc] |
8.8 ± 0.1 |
17.2 ± 1.2 |
| Bx GSE [nT] |
0.4 ± 0.3 |
1.6 ± 0.4 |
| By GSE [nT] |
2.9 ± 0.1 |
5.6 ± 0.5 |
| Bz GSE [nT] |
-2.7 ± 0.1 |
-6.1 ± 0.5 |
Plasma Beta
|
0.447 ± 0.443
|
0.310 ± 0.336
|
Sound Speed [km/s]
|
24.89 ± 0.66
|
31.94 ± 1.59
|
Alfven Speed [km/s]
|
28.84 ± 0.74
|
44.78 ± 2.27
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.846 ± 0.375 |
0.524 ± 0.604 |
0.096 ± 0.096 |
5.53 ± 23.23 |
148.24 ± 40.89 |
| VC |
-0.974 ± 0.014 |
0.114 ± 0.034 |
-0.197 ± 0.194 |
-11.35 ± 3.82 |
173.32 ± 1.98 |
| MX1 |
-0.965 ± 0.019 |
0.141 ± 0.082 |
-0.221 ± 0.217 |
-12.74 ± 3.81 |
171.68 ± 4.89 |
| MX2 |
-0.965 ± 0.019 |
0.134 ± 0.074 |
-0.225 ± 0.221 |
-13.00 ± 4.03 |
172.11 ± 4.42 |
| MX3 |
-0.965 ± 0.019 |
0.128 ± 0.069 |
-0.228 ± 0.224 |
-13.20 ± 4.21 |
172.45 ± 4.11 |
| RH08 |
-0.965 ± 0.002 |
0.127 ± 0.010 |
-0.229 ± 0.225 |
-13.24 ± 0.38 |
172.48 ± 0.58 |
| RH09 |
-0.587 ± 0.048 |
-0.521 ± 0.052 |
-0.620 ± 0.525 |
-38.32 ± 2.82 |
221.62 ± 4.67 |
| RH10 |
-0.637 ± 0.054 |
-0.473 ± 0.062 |
-0.609 ± 0.519 |
-37.51 ± 4.02 |
216.60 ± 5.06 |
| Average |
-0.863 |
0.022 |
-0.279 |
-16.729 |
181.063 |
| Median |
-0.965 |
0.128 |
-0.225 |
-12.998 |
172.479 |
| Deviation |
0.161 |
0.348 |
0.234 |
14.527 |
24.959 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
76.8 ± 3.5 |
332.8 ± 8.8 |
1.96 ± 0.14 |
| VC |
83.3 ± 3.8 |
380.6 ± 9.0 |
1.96 ± 0.14 |
| MX1 |
81.2 ± 3.8 |
378.1 ± 8.9 |
1.96 ± 0.14 |
| MX2 |
81.3 ± 3.8 |
378.0 ± 8.9 |
1.96 ± 0.14 |
| MX3 |
81.5 ± 3.8 |
378.0 ± 8.9 |
1.96 ± 0.14 |
| RH08 |
81.5 ± 3.8 |
377.9 ± 8.9 |
1.96 ± 0.14 |
| RH09 |
88.9 ± 2.7 |
230.2 ± 4.9 |
1.96 ± 0.14 |
| RH10 |
89.9 ± 2.8 |
249.7 ± 5.3 |
1.96 ± 0.14 |
| Average |
83.0 |
338.1 |
1.96 |
| Median |
81.5 |
378.0 |
1.96 |
| Deviation |
4.3 |
62.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
83.3 ± 1.2 |
4.3 ± 0.1 |
6.6 ± 0.2 |
37.9 ± 0.9 |
19.18 ± 0.69 |
2.20 ± 0.08 |
| VC |
94.8 ± 1.5 |
2.2 ± 0.1 |
3.3 ± 0.1 |
38.0 ± 0.9 |
43.32 ± 1.65 |
2.50 ± 0.09 |
| MX1 |
94.5 ± 1.5 |
2.9 ± 0.1 |
4.4 ± 0.1 |
38.0 ± 0.9 |
32.76 ± 1.25 |
2.49 ± 0.09 |
| MX2 |
94.5 ± 1.5 |
2.8 ± 0.1 |
4.3 ± 0.1 |
38.0 ± 0.9 |
33.28 ± 1.27 |
2.49 ± 0.09 |
| MX3 |
94.5 ± 1.5 |
2.8 ± 0.1 |
4.3 ± 0.1 |
38.0 ± 0.9 |
33.71 ± 1.29 |
2.49 ± 0.09 |
| RH8 |
94.5 ± 1.5 |
2.8 ± 0.1 |
4.3 ± 0.1 |
38.0 ± 0.9 |
33.68 ± 1.29 |
2.49 ± 0.09 |
| RH9 |
59.0 ± 1.3 |
0.4 ± 0.0 |
0.6 ± 0.0 |
38.1 ± 0.9 |
158.21 ± 6.93 |
1.55 ± 0.07 |
| RH10 |
63.5 ± 1.4 |
0.0 ± 0.0 |
0.1 ± 0.0 |
38.1 ± 0.9 |
1384.12 ± 59.82 |
1.67 ± 0.07 |
| Average |
84.8 |
2.3 |
3.5 |
38.0 |
217.3 |
2.2 |
| Median |
94.5 |
2.8 |
4.3 |
38.0 |
33.7 |
2.5 |
| Deviation |
15.1 |
1.4 |
2.2 |
0.1 |
473.6 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
43.8 ± 2.6 |
6.0 ± 0.2 |
10.3 ± 0.5 |
54.7 ± 1.4 |
7.34 ± 0.44 |
0.80 ± 0.06 |
| VC |
49.3 ± 2.5 |
3.0 ± 0.1 |
5.2 ± 0.3 |
55.0 ± 1.4 |
16.35 ± 0.85 |
0.90 ± 0.05 |
| MX1 |
49.0 ± 2.5 |
4.0 ± 0.1 |
6.8 ± 0.3 |
54.9 ± 1.4 |
12.33 ± 0.65 |
0.89 ± 0.05 |
| MX2 |
49.0 ± 2.5 |
3.9 ± 0.1 |
6.7 ± 0.3 |
54.9 ± 1.4 |
12.53 ± 0.66 |
0.89 ± 0.05 |
| MX3 |
49.0 ± 2.5 |
3.9 ± 0.1 |
6.6 ± 0.3 |
54.9 ± 1.4 |
12.69 ± 0.67 |
0.89 ± 0.05 |
| RH8 |
48.9 ± 2.5 |
3.9 ± 0.1 |
6.7 ± 0.3 |
54.9 ± 1.4 |
12.67 ± 0.67 |
0.89 ± 0.05 |
| RH9 |
30.1 ± 2.0 |
0.5 ± 0.0 |
0.9 ± 0.0 |
55.0 ± 1.4 |
58.66 ± 4.11 |
0.55 ± 0.03 |
| RH10 |
32.3 ± 2.0 |
0.1 ± 0.0 |
0.1 ± 0.0 |
55.0 ± 1.4 |
510.61 ± 34.14 |
0.59 ± 0.03 |
| Average |
43.9 |
3.1 |
5.4 |
54.9 |
80.4 |
0.8 |
| Median |
49.0 |
3.9 |
6.7 |
54.9 |
12.7 |
0.9 |
| Deviation |
8.1 |
2.0 |
3.4 |
0.1 |
174.6 |
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 Fri Jun 13 11:06:02 2014
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
