Database: Wind Shock Analysis
Event ID: 20171821634
Observation time: 07/01/2017 182.69043 1634 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
182.690434 |
| Arrival time of shock [seconds of day] |
59653.5 ± 40.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
205.180 |
| Y GSE location of spacecraft [Re] |
68.575 |
| Z GSE location of spacecraft [Re] |
-10.556 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0281 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0348 |
| Minimum chisq/dof for RH8,RH9,RH10 |
12.34, 19.46, 22.30 |
Event added to database
|
Tue Oct 24 12:43:44 2017
|
Event last processed
|
Tue Oct 24 13:21:23 2017
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
37.798 ± 8.668
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-364.8 ± 2.2 |
-399.3 ± 16.6 |
| Vy GSE [km/s] |
-13.7 ± 2.3 |
-11.3 ± 4.5 |
| Vz GSE [km/s] |
5.9 ± 1.7 |
-24.9 ± 6.8 |
| Wi [km/s] |
23.2 ± 0.7 |
29.5 ± 8.4 |
| We [km/s] |
732.9 ± 21.7 |
932.0 ± 264.1 |
| Ni [n/cc] |
7.1 ± 0.5 |
11.5 ± 1.0 |
| Bx GSE [nT] |
-1.5 ± 0.8 |
0.9 ± 0.8 |
| By GSE [nT] |
9.5 ± 0.4 |
17.0 ± 0.7 |
| Bz GSE [nT] |
4.1 ± 0.9 |
2.0 ± 1.6 |
Plasma Beta
|
0.074 ± 0.075
|
0.075 ± 0.066
|
Sound Speed [km/s]
|
29.92 ± 0.89
|
38.05 ± 10.78
|
Alfven Speed [km/s]
|
85.50 ± 3.01
|
110.92 ± 7.25
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.519 ± 0.184 |
0.381 ± 0.183 |
0.765 ± 0.561 |
49.88 ± 13.94 |
143.72 ± 16.07 |
| VC |
-0.720 ± 0.204 |
0.136 ± 0.248 |
-0.680 ± 0.548 |
-42.85 ± 17.07 |
169.32 ± 19.49 |
| MX1 |
-0.750 ± 0.229 |
-0.170 ± 0.472 |
-0.640 ± 0.533 |
-39.76 ± 18.60 |
192.79 ± 35.91 |
| MX2 |
-0.747 ± 0.193 |
-0.084 ± 0.299 |
-0.660 ± 0.541 |
-41.27 ± 16.59 |
186.43 ± 22.87 |
| MX3 |
-0.749 ± 0.150 |
-0.023 ± 0.178 |
-0.662 ± 0.542 |
-41.43 ± 12.98 |
181.74 ± 13.62 |
| RH08 |
-0.795 ± 0.020 |
0.221 ± 0.016 |
-0.564 ± 0.495 |
-34.35 ± 2.09 |
164.46 ± 1.07 |
| RH09 |
-0.747 ± 0.047 |
0.208 ± 0.068 |
-0.631 ± 0.530 |
-39.14 ± 4.03 |
164.46 ± 5.13 |
| RH10 |
-0.764 ± 0.045 |
0.213 ± 0.068 |
-0.609 ± 0.519 |
-37.51 ± 4.02 |
164.46 ± 5.06 |
| Average |
-0.724 |
0.110 |
-0.460 |
-28.305 |
170.922 |
| Median |
-0.747 |
0.208 |
-0.631 |
-39.145 |
169.320 |
| Deviation |
0.085 |
0.185 |
0.496 |
31.702 |
15.600 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
44.0 ± 6.9 |
180.0 ± 6.5 |
1.65 ± 0.16 |
| VC |
87.5 ± 0.8 |
372.6 ± 8.4 |
1.65 ± 0.16 |
| MX1 |
72.5 ± 1.1 |
388.8 ± 8.7 |
1.65 ± 0.16 |
| MX2 |
76.6 ± 0.9 |
387.2 ± 8.7 |
1.65 ± 0.16 |
| MX3 |
79.8 ± 0.8 |
387.7 ± 8.6 |
1.65 ± 0.16 |
| RH08 |
84.9 ± 0.9 |
401.1 ± 8.5 |
1.65 ± 0.16 |
| RH09 |
87.5 ± 0.8 |
382.2 ± 8.3 |
1.65 ± 0.16 |
| RH10 |
86.6 ± 0.8 |
388.7 ± 36.6 |
1.65 ± 0.16 |
| Average |
77.4 |
361.0 |
1.65 |
| Median |
84.9 |
387.7 |
1.65 |
| Deviation |
14.6 |
73.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-8.8 ± 1.8 |
20.9 ± 0.6 |
61.6 ± 2.2 |
88.1 ± 3.0 |
-0.42 ± 0.09 |
-0.10 ± 0.02 |
| VC |
115.7 ± 0.8 |
1.2 ± 0.0 |
3.8 ± 0.1 |
90.6 ± 3.0 |
92.62 ± 2.20 |
1.28 ± 0.04 |
| MX1 |
116.8 ± 1.4 |
8.5 ± 0.2 |
25.7 ± 0.9 |
90.2 ± 3.0 |
13.69 ± 0.24 |
1.30 ± 0.03 |
| MX2 |
117.5 ± 1.2 |
6.5 ± 0.2 |
19.8 ± 0.7 |
90.4 ± 3.0 |
17.96 ± 0.34 |
1.30 ± 0.04 |
| MX3 |
117.9 ± 1.1 |
5.0 ± 0.1 |
15.1 ± 0.5 |
90.5 ± 3.0 |
23.66 ± 0.48 |
1.30 ± 0.04 |
| RH8 |
117.3 ± 0.8 |
2.5 ± 0.1 |
7.6 ± 0.3 |
90.6 ± 3.0 |
46.87 ± 1.09 |
1.30 ± 0.04 |
| RH9 |
116.3 ± 0.8 |
1.2 ± 0.0 |
3.7 ± 0.1 |
90.6 ± 3.0 |
94.51 ± 2.30 |
1.28 ± 0.04 |
| RH10 |
116.5 ± 0.8 |
1.7 ± 0.0 |
5.0 ± 0.2 |
90.6 ± 3.0 |
69.97 ± 1.68 |
1.29 ± 0.04 |
| Average |
101.1 |
6.0 |
17.8 |
90.2 |
44.9 |
1.1 |
| Median |
116.8 |
5.0 |
15.1 |
90.6 |
46.9 |
1.3 |
| Deviation |
44.4 |
6.6 |
19.5 |
0.8 |
37.0 |
0.5 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-4.1 ± 11.5 |
26.5 ± 7.0 |
79.9 ± 5.2 |
114.4 ± 7.6 |
-0.21 ± 0.42 |
-0.04 ± 0.10 |
| VC |
69.5 ± 8.7 |
1.6 ± 0.4 |
4.9 ± 0.3 |
117.6 ± 8.1 |
44.95 ± 5.05 |
0.59 ± 0.06 |
| MX1 |
71.6 ± 10.5 |
10.8 ± 2.7 |
33.4 ± 2.2 |
117.1 ± 8.0 |
6.76 ± 0.68 |
0.61 ± 0.08 |
| MX2 |
71.6 ± 10.1 |
8.3 ± 2.1 |
25.6 ± 1.7 |
117.3 ± 8.1 |
8.82 ± 0.92 |
0.61 ± 0.07 |
| MX3 |
71.7 ± 9.8 |
6.3 ± 1.6 |
19.6 ± 1.3 |
117.4 ± 8.1 |
11.60 ± 1.22 |
0.61 ± 0.07 |
| RH8 |
72.0 ± 9.9 |
3.2 ± 0.8 |
9.8 ± 0.6 |
117.5 ± 8.1 |
23.17 ± 2.43 |
0.61 ± 0.07 |
| RH9 |
70.5 ± 8.9 |
1.6 ± 0.4 |
4.8 ± 0.3 |
117.6 ± 8.1 |
46.28 ± 5.13 |
0.60 ± 0.06 |
| RH10 |
70.8 ± 9.3 |
2.1 ± 0.5 |
6.5 ± 0.4 |
117.6 ± 8.1 |
34.32 ± 3.72 |
0.60 ± 0.06 |
| Average |
61.7 |
7.5 |
23.1 |
117.1 |
22.0 |
0.5 |
| Median |
71.6 |
6.3 |
19.6 |
117.5 |
23.2 |
0.6 |
| Deviation |
26.6 |
8.4 |
25.2 |
1.1 |
18.0 |
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 Wed Jan 22 21:47:00 2020
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
