Database: Wind Shock Analysis
Event ID: 20171970510
Observation time: 07/16/2017 197.21595 0510 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
197.215955 |
| Arrival time of shock [seconds of day] |
18658.5 ± 20.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
214.392 |
| Y GSE location of spacecraft [Re] |
95.894 |
| Z GSE location of spacecraft [Re] |
-7.456 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0223 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0148 |
| Minimum chisq/dof for RH8,RH9,RH10 |
10.21, 16.38, 18.24 |
Event added to database
|
Tue Oct 24 12:49:42 2017
|
Event last processed
|
Tue Oct 24 13:27:43 2017
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
67.597 ± 12.148
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-320.3 ± 7.2 |
-384.2 ± 4.2 |
| Vy GSE [km/s] |
-5.0 ± 1.1 |
-26.1 ± 5.7 |
| Vz GSE [km/s] |
-5.0 ± 8.6 |
-85.0 ± 10.5 |
| Wi [km/s] |
21.2 ± 2.3 |
35.9 ± 6.2 |
| We [km/s] |
670.7 ± 72.6 |
1136.0 ± 197.5 |
| Ni [n/cc] |
7.6 ± 0.8 |
19.0 ± 3.5 |
| Bx GSE [nT] |
-0.7 ± 0.8 |
0.8 ± 0.7 |
| By GSE [nT] |
-4.2 ± 1.1 |
-9.2 ± 1.5 |
| Bz GSE [nT] |
-0.2 ± 0.7 |
1.3 ± 1.9 |
Plasma Beta
|
0.406 ± 0.441
|
0.578 ± 0.643
|
Sound Speed [km/s]
|
27.38 ± 2.96
|
46.38 ± 8.06
|
Alfven Speed [km/s]
|
34.92 ± 6.97
|
47.95 ± 2.64
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.783 ± 0.353 |
-0.593 ± 0.456 |
-0.190 ± 0.188 |
-10.94 ± 33.08 |
217.15 ± 33.05 |
| VC |
-0.615 ± 0.066 |
-0.206 ± 0.058 |
-0.762 ± 0.561 |
-49.60 ± 5.04 |
198.51 ± 5.08 |
| MX1 |
-0.636 ± 0.188 |
-0.408 ± 0.245 |
-0.655 ± 0.540 |
-40.91 ± 11.85 |
212.68 ± 21.05 |
| MX2 |
-0.642 ± 0.174 |
-0.388 ± 0.211 |
-0.661 ± 0.542 |
-41.41 ± 12.83 |
211.15 ± 17.56 |
| MX3 |
-0.657 ± 0.170 |
-0.370 ± 0.184 |
-0.657 ± 0.540 |
-41.06 ± 14.21 |
209.42 ± 14.47 |
| RH08 |
-0.832 ± 0.010 |
-0.036 ± 0.021 |
0.553 ± 0.488 |
33.58 ± 1.04 |
182.51 ± 1.46 |
| RH09 |
-0.867 ± 0.035 |
-0.023 ± 0.070 |
0.497 ± 0.451 |
29.82 ± 4.03 |
181.50 ± 4.65 |
| RH10 |
-0.854 ± 0.036 |
-0.022 ± 0.071 |
0.520 ± 0.467 |
31.30 ± 4.01 |
181.50 ± 4.76 |
| Average |
-0.736 |
-0.256 |
-0.169 |
-11.154 |
199.304 |
| Median |
-0.657 |
-0.206 |
-0.190 |
-10.944 |
209.421 |
| Deviation |
0.109 |
0.216 |
0.599 |
37.140 |
15.384 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
43.7 ± 12.9 |
390.3 ± 3.3 |
2.62 ± 0.79 |
| VC |
69.0 ± 11.7 |
375.6 ± 4.2 |
2.62 ± 0.79 |
| MX1 |
56.6 ± 12.1 |
380.6 ± 4.1 |
2.62 ± 0.79 |
| MX2 |
57.8 ± 12.1 |
383.0 ± 4.1 |
2.62 ± 0.79 |
| MX3 |
58.8 ± 12.1 |
388.0 ± 4.1 |
2.62 ± 0.79 |
| RH08 |
82.4 ± 9.6 |
282.5 ± 2.2 |
2.62 ± 0.79 |
| RH09 |
82.6 ± 9.9 |
303.5 ± 2.1 |
2.62 ± 0.79 |
| RH10 |
82.9 ± 9.8 |
295.3 ± 11.1 |
2.62 ± 0.79 |
| Average |
66.7 |
349.9 |
2.62 |
| Median |
69.0 |
380.6 |
2.62 |
| Deviation |
14.8 |
47.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
135.8 ± 6.7 |
16.5 ± 1.3 |
25.2 ± 5.0 |
41.4 ± 5.8 |
8.27 ± 0.90 |
3.33 ± 0.46 |
| VC |
173.9 ± 9.8 |
7.7 ± 0.6 |
12.5 ± 2.5 |
43.9 ± 5.8 |
22.74 ± 2.74 |
4.02 ± 0.58 |
| MX1 |
171.6 ± 9.1 |
12.2 ± 1.0 |
19.2 ± 3.8 |
42.9 ± 5.8 |
14.22 ± 1.65 |
4.06 ± 0.58 |
| MX2 |
172.1 ± 9.2 |
11.7 ± 0.9 |
18.6 ± 3.7 |
43.0 ± 5.8 |
14.80 ± 1.73 |
4.06 ± 0.58 |
| MX3 |
172.5 ± 9.2 |
11.4 ± 0.9 |
18.1 ± 3.6 |
43.1 ± 5.8 |
15.28 ± 1.79 |
4.06 ± 0.58 |
| RH8 |
18.5 ± 4.9 |
2.8 ± 0.2 |
4.6 ± 0.9 |
44.5 ± 5.8 |
6.60 ± 1.81 |
0.42 ± 0.11 |
| RH9 |
28.1 ± 5.0 |
2.7 ± 0.2 |
4.5 ± 0.9 |
44.5 ± 5.8 |
10.32 ± 2.02 |
0.64 ± 0.13 |
| RH10 |
24.1 ± 5.0 |
2.6 ± 0.2 |
4.3 ± 0.9 |
44.5 ± 5.8 |
9.16 ± 2.01 |
0.55 ± 0.12 |
| Average |
112.1 |
8.5 |
13.4 |
43.5 |
12.7 |
2.6 |
| Median |
171.6 |
11.4 |
18.1 |
43.9 |
14.2 |
4.0 |
| Deviation |
74.4 |
5.3 |
8.1 |
1.1 |
5.2 |
1.8 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
58.1 ± 2.1 |
25.9 ± 2.5 |
34.7 ± 1.9 |
61.7 ± 5.4 |
2.26 ± 0.27 |
0.95 ± 0.11 |
| VC |
69.4 ± 6.9 |
12.0 ± 1.1 |
17.2 ± 0.9 |
65.8 ± 5.8 |
5.83 ± 0.97 |
1.06 ± 0.17 |
| MX1 |
69.9 ± 4.7 |
19.0 ± 1.8 |
26.4 ± 1.5 |
64.2 ± 5.6 |
3.72 ± 0.53 |
1.10 ± 0.15 |
| MX2 |
70.0 ± 4.9 |
18.3 ± 1.7 |
25.5 ± 1.4 |
64.4 ± 5.7 |
3.86 ± 0.56 |
1.10 ± 0.15 |
| MX3 |
70.1 ± 5.0 |
17.7 ± 1.7 |
24.8 ± 1.4 |
64.5 ± 5.7 |
3.99 ± 0.58 |
1.10 ± 0.15 |
| RH8 |
8.8 ± 7.3 |
4.4 ± 0.4 |
6.3 ± 0.3 |
66.8 ± 5.9 |
2.06 ± 1.77 |
0.13 ± 0.12 |
| RH9 |
12.0 ± 6.9 |
4.3 ± 0.4 |
6.2 ± 0.3 |
66.8 ± 5.9 |
2.88 ± 1.75 |
0.18 ± 0.11 |
| RH10 |
10.7 ± 7.0 |
4.1 ± 0.4 |
6.0 ± 0.3 |
66.8 ± 5.9 |
2.65 ± 1.83 |
0.16 ± 0.11 |
| Average |
46.1 |
13.2 |
18.4 |
65.1 |
3.4 |
0.7 |
| Median |
69.4 |
17.7 |
24.8 |
65.8 |
3.7 |
1.1 |
| Deviation |
29.8 |
8.3 |
11.2 |
1.8 |
1.2 |
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)
| 
