Database: Wind Shock Analysis
Event ID: 19992651209
Observation time: 09/22/1999 265.50655 1209 [UT]
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![Wind spacecraft](../windsm.gif)
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General
Information (About, Top)
Year |
1999 |
Fractional day of year |
265.506545 |
Arrival time of shock [seconds of day] |
43765.5 ± 3.0 |
Shock type |
FF |
Electron data availability |
0 |
X GSE location of spacecraft [Re] |
83.214 |
Y GSE location of spacecraft [Re] |
-8.089 |
Z GSE location of spacecraft [Re] |
1.318 |
Upstream plasma points selected for analysis |
0010 |
Upstream field points selected for analysis |
0303 |
Downstream plasma points selected for analysis |
0009
|
Downstream field points selected for analysis |
0303 |
Minimum chisq/dof for RH8,RH9,RH10 |
9.98, 14.89, 15.40 |
Event added to database
|
Mon Feb 14 11:08:52 2005
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Event last processed
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Mon Mar 30 19:04:25 2009
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Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
16.581 ± 1.265
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Asymptotic
plasma
parameters (About, Top)
Parameter
|
Upstream
|
Downstream
|
Vx GSE [km/s] |
-368.1 ± 4.3 |
-453.6 ± 12.0 |
Vy GSE [km/s] |
40.7 ± 6.0 |
-7.9 ± 13.1 |
Vz GSE [km/s] |
56.0 ± 5.4 |
74.5 ± 10.7 |
Wi [km/s] |
40.6 ± 1.3 |
64.5 ± 12.0 |
We [km/s] |
1284.0 ± 41.7 |
2041.1 ± 380.6 |
Ni [n/cc] |
17.0 ± 0.7 |
44.7 ± 11.5 |
Bx GSE [nT] |
-3.5 ± 0.8 |
6.7 ± 8.7 |
By GSE [nT] |
-6.8 ± 2.3 |
2.1 ± 7.8 |
Bz GSE [nT] |
-8.3 ± 1.2 |
6.1 ± 6.3 |
Plasma Beta
|
0.442 ± 0.462
|
2.087 ± 1.683
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Sound Speed [km/s]
|
52.42 ± 1.70
|
83.33 ± 15.54
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Alfven Speed [km/s]
|
61.18 ± 1.98
|
50.40 ± 14.23
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Best values of
shock
front normal for each method (About, Top)
Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
MC |
-0.886 ± 0.411 |
0.463 ± 0.787 |
0.031 ± 0.031 |
1.79 ± 30.44 |
152.42 ± 50.89 |
VC |
-0.852 ± 0.086 |
-0.490 ± 0.146 |
0.185 ± 0.183 |
10.68 ± 7.12 |
209.90 ± 9.78 |
MX1 |
-0.746 ± 0.116 |
-0.101 ± 0.295 |
0.658 ± 0.541 |
41.18 ± 9.59 |
187.68 ± 22.66 |
MX2 |
-0.689 ± 0.255 |
-0.489 ± 0.328 |
0.535 ± 0.477 |
32.34 ± 15.75 |
215.35 ± 26.31 |
MX3 |
-0.692 ± 0.102 |
-0.362 ± 0.135 |
0.624 ± 0.527 |
38.63 ± 7.91 |
207.62 ± 10.64 |
RH08 |
-0.985 ± 0.002 |
-0.148 ± 0.009 |
0.084 ± 0.084 |
4.81 ± 0.54 |
188.52 ± 0.55 |
RH09 |
-0.990 ± 0.010 |
-0.113 ± 0.069 |
0.084 ± 0.084 |
4.81 ± 4.02 |
186.52 ± 3.99 |
RH10 |
-0.990 ± 0.010 |
-0.113 ± 0.069 |
0.084 ± 0.084 |
4.81 ± 4.02 |
186.52 ± 3.99 |
Average |
-0.854 |
-0.169 |
0.286 |
17.380 |
191.816 |
Median |
-0.852 |
-0.113 |
0.185 |
10.681 |
188.524 |
Deviation |
0.131 |
0.305 |
0.271 |
16.919 |
19.882 |
Key shock
parameters (About, Top)
Method |
ThetaBn |
Shock Speed |
Compression |
MC |
88.8 ± 8.0 |
428.3 ± 36.1 |
2.64 ± 0.68 |
VC |
65.4 ± 5.2 |
465.9 ± 34.8 |
2.64 ± 0.68 |
MX1 |
79.3 ± 4.1 |
430.3 ± 35.0 |
2.64 ± 0.68 |
MX2 |
83.5 ± 7.2 |
410.1 ± 35.3 |
2.64 ± 0.68 |
MX3 |
88.6 ± 6.4 |
412.8 ± 35.4 |
2.64 ± 0.68 |
RH08 |
70.8 ± 3.4 |
510.7 ± 37.2 |
2.64 ± 0.68 |
RH09 |
71.9 ± 3.5 |
511.4 ± 37.4 |
2.64 ± 0.68 |
RH10 |
71.9 ± 3.5 |
511.4 ± 37.4 |
2.64 ± 0.68 |
Average |
77.5 |
460.1 |
2.64 |
Median |
79.3 |
465.9 |
2.64 |
Deviation |
8.8 |
45.5 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
MC |
81.6 ± 6.0 |
0.9 ± 0.0 |
1.3 ± 0.0 |
80.6 ± 2.0 |
94.23 ± 8.62 |
1.01 ± 0.09 |
VC |
161.9 ± 2.8 |
16.9 ± 0.4 |
25.5 ± 0.8 |
78.8 ± 1.9 |
9.57 ± 0.31 |
2.06 ± 0.07 |
MX1 |
122.9 ± 3.2 |
7.4 ± 0.2 |
11.3 ± 0.4 |
80.2 ± 2.0 |
16.63 ± 0.69 |
1.53 ± 0.06 |
MX2 |
146.4 ± 4.0 |
4.5 ± 0.1 |
7.0 ± 0.2 |
80.5 ± 2.0 |
32.25 ± 1.14 |
1.82 ± 0.06 |
MX3 |
137.8 ± 3.9 |
1.0 ± 0.0 |
1.5 ± 0.0 |
80.6 ± 2.0 |
144.37 ± 5.43 |
1.71 ± 0.06 |
RH8 |
149.2 ± 3.4 |
13.3 ± 0.3 |
20.1 ± 0.7 |
79.5 ± 1.9 |
11.26 ± 0.49 |
1.88 ± 0.08 |
RH9 |
146.8 ± 3.5 |
12.5 ± 0.3 |
19.0 ± 0.6 |
79.6 ± 1.9 |
11.77 ± 0.53 |
1.85 ± 0.08 |
RH10 |
146.8 ± 3.5 |
12.5 ± 0.3 |
19.0 ± 0.6 |
79.6 ± 1.9 |
11.77 ± 0.53 |
1.85 ± 0.08 |
Average |
136.7 |
8.6 |
13.1 |
79.9 |
41.5 |
1.7 |
Median |
146.8 |
12.5 |
19.0 |
80.2 |
16.6 |
1.8 |
Deviation |
24.8 |
6.1 |
9.1 |
0.6 |
50.4 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
MC |
27.8 ± 15.3 |
0.9 ± 0.2 |
1.1 ± 0.3 |
98.5 ± 14.4 |
32.51 ± 18.93 |
0.28 ± 0.14 |
VC |
61.8 ± 5.6 |
17.7 ± 3.3 |
21.0 ± 5.9 |
96.8 ± 14.3 |
3.61 ± 0.74 |
0.65 ± 0.10 |
MX1 |
42.1 ± 4.2 |
7.7 ± 1.4 |
9.3 ± 2.6 |
98.1 ± 14.4 |
5.63 ± 1.27 |
0.44 ± 0.08 |
MX2 |
53.8 ± 3.6 |
4.8 ± 0.9 |
5.7 ± 1.6 |
98.3 ± 14.4 |
11.62 ± 2.12 |
0.56 ± 0.10 |
MX3 |
49.5 ± 3.2 |
1.0 ± 0.2 |
1.2 ± 0.3 |
98.5 ± 14.4 |
50.87 ± 9.63 |
0.51 ± 0.09 |
RH8 |
56.3 ± 9.7 |
13.9 ± 2.5 |
16.6 ± 4.7 |
97.5 ± 14.4 |
4.21 ± 1.13 |
0.58 ± 0.10 |
RH9 |
55.2 ± 10.1 |
13.1 ± 2.4 |
15.6 ± 4.4 |
97.6 ± 14.4 |
4.39 ± 1.21 |
0.57 ± 0.10 |
RH10 |
55.2 ± 10.1 |
13.1 ± 2.4 |
15.6 ± 4.4 |
97.6 ± 14.4 |
4.39 ± 1.21 |
0.57 ± 0.10 |
Average |
50.2 |
9.0 |
10.8 |
97.9 |
14.7 |
0.5 |
Median |
55.2 |
13.1 |
15.6 |
98.1 |
5.6 |
0.6 |
Deviation |
10.7 |
6.3 |
7.5 |
0.6 |
17.6 |
0.1 |
Survey interval (About, Top)
![Survey of solar wind interval](wi_survey_00149.png)
Selected
data (About, Top)
Key plasma parameters
![Survey](wi_selvwnb_00149.png)
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Velocity
![V](wi_selv_00149.png)
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Magnetic Field
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Simple
Methods
(About, Top)
Rankine Chi^2
Contour (About, Top)
Shock
Speed (About, Top)
![Shock Speed](wi_shockspeed_00149.png)
Theta Bn (About, Top)
![Theta Bn](wi_thetabn_00149.png)
Mach Numbers (About, Top)
Page updated Fri Jun 13 11:06:02 2014
Michael L Stevens
(mstevens@cfa.harvard.edu)
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