Database: Wind Shock Analysis
Event ID: 20171990853
Observation time: 07/18/2017 199.37023 0853 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
199.370226 |
| Arrival time of shock [seconds of day] |
31987.5 ± 60.0 |
| Shock type |
FR |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
216.662 |
| Y GSE location of spacecraft [Re] |
98.212 |
| Z GSE location of spacecraft [Re] |
-6.801 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0260 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0259 |
| Minimum chisq/dof for RH8,RH9,RH10 |
8.67, 12.23, 13.03 |
Event added to database
|
Tue Oct 24 12:50:35 2017
|
Event last processed
|
Tue Oct 24 13:30:13 2017
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
59.349 ± 3.526
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-500.7 ± 18.2 |
-603.6 ± 16.8 |
| Vy GSE [km/s] |
14.6 ± 20.4 |
20.2 ± 15.1 |
| Vz GSE [km/s] |
9.8 ± 35.6 |
-21.3 ± 26.6 |
| Wi [km/s] |
121.5 ± 13.5 |
89.9 ± 4.6 |
| We [km/s] |
3841.6 ± 426.7 |
2842.8 ± 146.1 |
| Ni [n/cc] |
1.6 ± 0.3 |
0.8 ± 0.0 |
| Bx GSE [nT] |
1.1 ± 0.9 |
0.2 ± 1.0 |
| By GSE [nT] |
-6.0 ± 0.8 |
-2.4 ± 0.5 |
| Bz GSE [nT] |
-1.9 ± 1.9 |
-2.0 ± 1.5 |
Plasma Beta
|
1.185 ± 1.043
|
1.170 ± 1.043
|
Sound Speed [km/s]
|
156.83 ± 17.42
|
116.06 ± 5.96
|
Alfven Speed [km/s]
|
118.24 ± 16.02
|
84.84 ± 7.68
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.825 ± 0.406 |
-0.176 ± 0.794 |
-0.537 ± 0.479 |
-32.51 ± 40.21 |
192.05 ± 54.89 |
| VC |
-0.966 ± 0.095 |
0.038 ± 0.229 |
-0.256 ± 0.250 |
-14.84 ± 21.15 |
177.76 ± 13.60 |
| MX1 |
-0.873 ± 0.162 |
-0.360 ± 0.316 |
-0.329 ± 0.317 |
-19.23 ± 18.31 |
202.42 ± 20.55 |
| MX2 |
-0.900 ± 0.289 |
-0.255 ± 0.720 |
-0.352 ± 0.337 |
-20.62 ± 34.63 |
195.82 ± 45.66 |
| MX3 |
-0.926 ± 0.110 |
-0.318 ± 0.287 |
-0.204 ± 0.201 |
-11.77 ± 14.53 |
198.97 ± 17.72 |
| RH08 |
-0.981 ± 0.005 |
-0.060 ± 0.018 |
0.184 ± 0.182 |
10.62 ± 1.52 |
183.51 ± 1.04 |
| RH09 |
-0.992 ± 0.009 |
-0.078 ± 0.069 |
0.095 ± 0.095 |
5.45 ± 4.02 |
184.51 ± 3.99 |
| RH10 |
-0.991 ± 0.009 |
-0.078 ± 0.070 |
0.106 ± 0.106 |
6.09 ± 4.02 |
184.51 ± 4.03 |
| Average |
-0.932 |
-0.161 |
-0.162 |
-9.601 |
189.944 |
| Median |
-0.926 |
-0.078 |
-0.204 |
-11.769 |
192.050 |
| Deviation |
0.062 |
0.140 |
0.260 |
15.368 |
8.661 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
79.9 ± 8.8 |
302.3 ± 13.2 |
0.54 ± 0.10 |
| VC |
82.9 ± 7.7 |
371.7 ± 16.5 |
0.54 ± 0.10 |
| MX1 |
74.1 ± 7.0 |
331.0 ± 14.6 |
0.54 ± 0.10 |
| MX2 |
79.6 ± 7.4 |
345.0 ± 15.0 |
0.54 ± 0.10 |
| MX3 |
79.0 ± 7.1 |
352.8 ± 16.0 |
0.54 ± 0.10 |
| RH08 |
80.6 ± 9.0 |
385.6 ± 18.8 |
0.54 ± 0.10 |
| RH09 |
82.9 ± 8.4 |
389.3 ± 18.5 |
0.54 ± 0.10 |
| RH10 |
82.8 ± 8.5 |
389.9 ± 147.3 |
0.54 ± 0.10 |
| Average |
80.2 |
358.5 |
0.54 |
| Median |
80.6 |
371.7 |
0.54 |
| Deviation |
2.9 |
31.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-102.8 ± 17.9 |
16.4 ± 1.2 |
20.8 ± 2.8 |
196.8 ± 8.3 |
-6.29 ± 0.99 |
-0.52 ± 0.09 |
| VC |
-110.0 ± 15.4 |
11.4 ± 0.9 |
14.5 ± 2.0 |
197.2 ± 8.3 |
-9.69 ± 1.57 |
-0.56 ± 0.07 |
| MX1 |
-97.6 ± 16.3 |
25.6 ± 2.0 |
32.3 ± 4.4 |
195.8 ± 8.3 |
-3.83 ± 0.62 |
-0.50 ± 0.08 |
| MX2 |
-98.7 ± 15.9 |
16.8 ± 1.3 |
21.3 ± 2.9 |
196.8 ± 8.3 |
-5.89 ± 0.94 |
-0.50 ± 0.08 |
| MX3 |
-104.1 ± 16.4 |
17.8 ± 1.3 |
22.5 ± 3.1 |
196.7 ± 8.3 |
-5.89 ± 1.00 |
-0.53 ± 0.08 |
| RH8 |
-106.5 ± 22.0 |
15.2 ± 1.1 |
19.3 ± 2.6 |
196.9 ± 8.3 |
-7.09 ± 1.77 |
-0.54 ± 0.11 |
| RH9 |
-107.4 ± 20.2 |
11.4 ± 0.9 |
14.5 ± 2.0 |
197.2 ± 8.3 |
-9.49 ± 2.16 |
-0.54 ± 0.10 |
| RH10 |
-106.4 ± 20.4 |
11.7 ± 0.9 |
14.9 ± 2.0 |
197.2 ± 8.3 |
-9.17 ± 2.13 |
-0.54 ± 0.10 |
| Average |
-104.2 |
15.8 |
20.0 |
196.8 |
-7.2 |
-0.5 |
| Median |
-104.1 |
16.4 |
20.8 |
196.9 |
-6.3 |
-0.5 |
| Deviation |
4.3 |
4.7 |
5.9 |
0.4 |
2.1 |
0.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-203.3 ± 24.8 |
12.0 ± 0.7 |
14.9 ± 1.3 |
143.5 ± 3.8 |
-16.90 ± 1.38 |
-1.42 ± 0.16 |
| VC |
-217.5 ± 22.7 |
8.4 ± 0.5 |
10.4 ± 0.9 |
143.8 ± 3.8 |
-25.93 ± 1.88 |
-1.51 ± 0.15 |
| MX1 |
-195.5 ± 18.2 |
18.8 ± 1.1 |
23.2 ± 2.1 |
142.8 ± 3.7 |
-10.41 ± 0.60 |
-1.37 ± 0.12 |
| MX2 |
-200.8 ± 20.4 |
12.3 ± 0.7 |
15.3 ± 1.4 |
143.5 ± 3.8 |
-16.25 ± 1.07 |
-1.40 ± 0.13 |
| MX3 |
-203.9 ± 16.5 |
13.0 ± 0.7 |
16.2 ± 1.5 |
143.4 ± 3.8 |
-15.63 ± 0.83 |
-1.42 ± 0.11 |
| RH8 |
-201.3 ± 12.0 |
11.1 ± 0.6 |
13.8 ± 1.3 |
143.6 ± 3.8 |
-18.09 ± 1.16 |
-1.40 ± 0.08 |
| RH9 |
-206.0 ± 13.7 |
8.4 ± 0.5 |
10.4 ± 0.9 |
143.8 ± 3.8 |
-24.60 ± 1.49 |
-1.43 ± 0.09 |
| RH10 |
-204.6 ± 13.5 |
8.6 ± 0.5 |
10.7 ± 1.0 |
143.7 ± 3.8 |
-23.83 ± 1.46 |
-1.42 ± 0.09 |
| Average |
-204.1 |
11.6 |
14.4 |
143.5 |
-19.0 |
-1.4 |
| Median |
-203.3 |
12.0 |
14.9 |
143.6 |
-16.9 |
-1.4 |
| Deviation |
6.3 |
3.5 |
4.3 |
0.3 |
5.4 |
0.0 |
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)
| 
