Database: Wind Shock Analysis
Event ID: 20180442340
Observation time: 02/13/2018 44.98675 2340 [UT]
|
|
General
Information (About, Top)
| Year |
2018 |
| Fractional day of year |
44.986753 |
| Arrival time of shock [seconds of day] |
85255.5 ± 90.0 |
| Shock type |
SF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
249.922 |
| Y GSE location of spacecraft [Re] |
60.592 |
| Z GSE location of spacecraft [Re] |
4.949 |
| 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 |
0236 |
| Minimum chisq/dof for RH8,RH9,RH10 |
3.54, 6.42, 6.63 |
Event added to database
|
Fri Apr 20 10:02:54 2018
|
Event last processed
|
Fri Apr 20 10:14:22 2018
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
88.906 ± 16.573
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-304.8 ± 3.6 |
-323.9 ± 0.9 |
| Vy GSE [km/s] |
-1.8 ± 3.7 |
8.7 ± 1.1 |
| Vz GSE [km/s] |
6.1 ± 1.9 |
-9.8 ± 1.7 |
| Wi [km/s] |
27.2 ± 2.1 |
24.0 ± 0.9 |
| We [km/s] |
861.0 ± 66.1 |
760.0 ± 27.7 |
| Ni [n/cc] |
5.8 ± 0.9 |
9.4 ± 0.2 |
| Bx GSE [nT] |
3.2 ± 0.2 |
0.9 ± 0.3 |
| By GSE [nT] |
-2.7 ± 0.2 |
1.1 ± 0.2 |
| Bz GSE [nT] |
2.1 ± 0.3 |
1.9 ± 0.1 |
Plasma Beta
|
0.423 ± 0.431
|
2.018 ± 2.026
|
Sound Speed [km/s]
|
35.15 ± 2.70
|
31.03 ± 1.13
|
Alfven Speed [km/s]
|
43.21 ± 5.33
|
17.07 ± 1.05
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.489 ± 0.051 |
-0.334 ± 0.061 |
-0.806 ± 0.555 |
-53.72 ± 2.97 |
214.34 ± 6.54 |
| VC |
-0.709 ± 0.086 |
0.377 ± 0.094 |
-0.596 ± 0.513 |
-36.56 ± 7.93 |
151.99 ± 6.95 |
| MX1 |
-0.542 ± 0.287 |
-0.389 ± 0.219 |
-0.745 ± 0.561 |
-48.18 ± 26.53 |
215.69 ± 9.02 |
| MX2 |
-0.489 ± 0.052 |
-0.335 ± 0.061 |
-0.805 ± 0.555 |
-53.65 ± 3.02 |
214.36 ± 6.58 |
| MX3 |
-0.485 ± 0.071 |
-0.337 ± 0.072 |
-0.807 ± 0.555 |
-53.81 ± 4.91 |
214.78 ± 7.15 |
| RH08 |
-0.725 ± 0.006 |
-0.411 ± 0.004 |
0.553 ± 0.488 |
33.58 ± 0.76 |
209.58 ± 0.00 |
| RH09 |
-0.725 ± 0.039 |
-0.411 ± 0.035 |
0.553 ± 0.488 |
33.58 ± 4.18 |
209.58 ± 2.24 |
| RH10 |
-0.725 ± 0.039 |
-0.411 ± 0.036 |
0.553 ± 0.488 |
33.58 ± 4.20 |
209.58 ± 2.36 |
| Average |
-0.611 |
-0.281 |
-0.263 |
-18.148 |
204.987 |
| Median |
-0.542 |
-0.337 |
-0.596 |
-36.562 |
214.336 |
| Deviation |
0.119 |
0.268 |
0.679 |
43.202 |
21.574 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
60.1 ± 4.3 |
195.1 ± 1.3 |
1.67 ± 0.36 |
| VC |
14.9 ± 4.0 |
285.5 ± 1.4 |
1.67 ± 0.36 |
| MX1 |
61.7 ± 4.0 |
210.2 ± 1.3 |
1.67 ± 0.36 |
| MX2 |
60.2 ± 4.3 |
195.3 ± 1.3 |
1.67 ± 0.36 |
| MX3 |
60.4 ± 4.3 |
193.7 ± 1.3 |
1.67 ± 0.36 |
| RH08 |
89.4 ± 2.7 |
227.9 ± 0.4 |
1.67 ± 0.36 |
| RH09 |
89.4 ± 2.7 |
227.9 ± 0.4 |
1.67 ± 0.36 |
| RH10 |
89.4 ± 2.7 |
227.9 ± 3.2 |
1.67 ± 0.36 |
| Average |
65.7 |
220.4 |
1.67 |
| Median |
61.7 |
227.9 |
1.67 |
| Deviation |
25.0 |
30.4 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
50.5 ± 1.4 |
13.9 ± 0.2 |
21.5 ± 2.7 |
54.2 ± 3.0 |
3.65 ± 0.13 |
0.94 ± 0.05 |
| VC |
73.7 ± 3.6 |
31.9 ± 1.5 |
41.8 ± 5.2 |
45.8 ± 4.3 |
2.32 ± 0.21 |
1.61 ± 0.11 |
| MX1 |
48.9 ± 1.3 |
13.2 ± 0.2 |
20.5 ± 2.5 |
54.3 ± 3.0 |
3.72 ± 0.14 |
0.90 ± 0.05 |
| MX2 |
50.5 ± 1.4 |
13.8 ± 0.2 |
21.5 ± 2.7 |
54.2 ± 3.0 |
3.65 ± 0.13 |
0.93 ± 0.05 |
| MX3 |
50.2 ± 1.4 |
13.7 ± 0.2 |
21.3 ± 2.6 |
54.2 ± 3.0 |
3.66 ± 0.13 |
0.93 ± 0.05 |
| RH8 |
3.0 ± 2.2 |
0.3 ± 0.0 |
0.5 ± 0.1 |
55.9 ± 2.9 |
9.95 ± 7.53 |
0.05 ± 0.04 |
| RH9 |
3.0 ± 2.2 |
0.3 ± 0.0 |
0.5 ± 0.1 |
55.9 ± 2.9 |
9.95 ± 7.53 |
0.05 ± 0.04 |
| RH10 |
3.0 ± 2.2 |
0.3 ± 0.0 |
0.5 ± 0.1 |
55.9 ± 2.9 |
9.95 ± 7.53 |
0.05 ± 0.04 |
| Average |
35.3 |
10.9 |
16.0 |
53.8 |
5.9 |
0.7 |
| Median |
50.2 |
13.7 |
21.3 |
54.3 |
3.7 |
0.9 |
| Deviation |
28.0 |
10.7 |
14.6 |
3.3 |
3.4 |
0.6 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
31.9 ± 2.1 |
7.6 ± 0.3 |
8.5 ± 0.5 |
34.6 ± 0.7 |
4.20 ± 0.40 |
0.92 ± 0.05 |
| VC |
46.7 ± 1.2 |
16.3 ± 0.9 |
16.5 ± 1.0 |
31.5 ± 1.0 |
2.88 ± 0.21 |
1.48 ± 0.03 |
| MX1 |
30.8 ± 2.1 |
7.2 ± 0.3 |
8.1 ± 0.5 |
34.7 ± 0.7 |
4.27 ± 0.41 |
0.89 ± 0.05 |
| MX2 |
31.9 ± 2.1 |
7.6 ± 0.3 |
8.5 ± 0.5 |
34.6 ± 0.7 |
4.20 ± 0.40 |
0.92 ± 0.05 |
| MX3 |
31.7 ± 2.1 |
7.5 ± 0.3 |
8.4 ± 0.5 |
34.6 ± 0.7 |
4.21 ± 0.40 |
0.91 ± 0.05 |
| RH8 |
2.3 ± 0.3 |
0.2 ± 0.0 |
0.2 ± 0.0 |
35.4 ± 0.6 |
13.76 ± 2.08 |
0.06 ± 0.01 |
| RH9 |
2.3 ± 0.3 |
0.2 ± 0.0 |
0.2 ± 0.0 |
35.4 ± 0.6 |
13.76 ± 2.08 |
0.06 ± 0.01 |
| RH10 |
2.3 ± 0.3 |
0.2 ± 0.0 |
0.2 ± 0.0 |
35.4 ± 0.6 |
13.76 ± 2.08 |
0.06 ± 0.01 |
| Average |
22.5 |
5.8 |
6.3 |
34.5 |
7.6 |
0.7 |
| Median |
31.7 |
7.5 |
8.4 |
34.7 |
4.3 |
0.9 |
| Deviation |
17.5 |
5.6 |
5.8 |
1.3 |
5.1 |
0.5 |
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)
| 
