Database: Wind Shock Analysis
Event ID: 20172502228
Observation time: 09/07/2017 250.93623 2228 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
250.936233 |
| Arrival time of shock [seconds of day] |
80890.5 ± 10.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
262.247 |
| Y GSE location of spacecraft [Re] |
9.059 |
| Z GSE location of spacecraft [Re] |
10.690 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0164 |
| Downstream plasma points selected for analysis |
0006
|
| Downstream field points selected for analysis |
0184 |
| Minimum chisq/dof for RH8,RH9,RH10 |
6.83, 13.14, 14.36 |
Event added to database
|
Tue Oct 24 13:00:12 2017
|
Event last processed
|
Wed Oct 25 12:10:31 2017
|
Method selected
|
MX3
|
Propagation delay to Earth [minutes]
|
30.030 ± 7.500
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-518.4 ± 91.5 |
-682.4 ± 21.5 |
| Vy GSE [km/s] |
-16.6 ± 17.5 |
63.0 ± 10.2 |
| Vz GSE [km/s] |
-5.7 ± 14.2 |
-33.6 ± 8.4 |
| Wi [km/s] |
25.7 ± 19.7 |
55.7 ± 7.2 |
| We [km/s] |
812.7 ± 622.4 |
1762.0 ± 228.8 |
| Ni [n/cc] |
2.3 ± 1.1 |
4.7 ± 1.0 |
| Bx GSE [nT] |
-0.3 ± 0.9 |
7.9 ± 0.7 |
| By GSE [nT] |
6.8 ± 1.0 |
8.8 ± 0.7 |
| Bz GSE [nT] |
-8.7 ± 1.6 |
-24.3 ± 0.5 |
Plasma Beta
|
0.038 ± 0.016
|
0.042 ± 0.040
|
Sound Speed [km/s]
|
33.18 ± 25.41
|
71.93 ± 9.34
|
Alfven Speed [km/s]
|
168.28 ± 31.65
|
275.65 ± 25.60
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.565 ± 0.084 |
0.801 ± 0.060 |
-0.199 ± 0.196 |
-11.46 ± 2.19 |
125.19 ± 6.02 |
| VC |
-0.901 ± 0.222 |
0.413 ± 0.485 |
-0.134 ± 0.133 |
-7.70 ± 6.01 |
155.40 ± 30.85 |
| MX1 |
-0.805 ± 0.269 |
0.514 ± 0.419 |
-0.296 ± 0.287 |
-17.20 ± 6.95 |
147.46 ± 29.77 |
| MX2 |
-0.831 ± 0.249 |
0.462 ± 0.444 |
-0.310 ± 0.300 |
-18.08 ± 6.99 |
150.90 ± 30.58 |
| MX3 |
-0.842 ± 0.241 |
0.437 ± 0.459 |
-0.316 ± 0.305 |
-18.44 ± 7.18 |
152.56 ± 31.20 |
| RH08 |
-0.398 ± 0.013 |
-0.842 ± 0.007 |
-0.363 ± 0.346 |
-21.29 ± 0.52 |
244.68 ± 0.90 |
| RH09 |
-0.398 ± 0.065 |
-0.842 ± 0.035 |
-0.363 ± 0.346 |
-21.29 ± 2.92 |
244.68 ± 4.39 |
| RH10 |
-0.398 ± 0.065 |
-0.842 ± 0.035 |
-0.363 ± 0.346 |
-21.29 ± 3.10 |
244.68 ± 4.41 |
| Average |
-0.642 |
0.013 |
-0.293 |
-17.094 |
183.192 |
| Median |
-0.565 |
0.437 |
-0.310 |
-18.079 |
155.395 |
| Deviation |
0.225 |
0.718 |
0.084 |
5.010 |
51.738 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
47.8 ± 5.0 |
554.4 ± 89.2 |
2.48 ± 1.58 |
| VC |
66.8 ± 4.8 |
775.6 ± 85.6 |
2.48 ± 1.58 |
| MX1 |
54.6 ± 4.8 |
717.8 ± 86.9 |
2.48 ± 1.58 |
| MX2 |
56.0 ± 4.7 |
732.4 ± 85.6 |
2.48 ± 1.58 |
| MX3 |
56.7 ± 4.7 |
739.1 ± 84.9 |
2.48 ± 1.58 |
| RH08 |
77.2 ± 2.0 |
241.7 ± 47.0 |
2.48 ± 1.58 |
| RH09 |
77.2 ± 2.0 |
241.7 ± 47.0 |
2.48 ± 1.58 |
| RH10 |
77.2 ± 2.0 |
241.7 ± 253.0 |
2.48 ± 1.58 |
| Average |
64.2 |
530.5 |
2.48 |
| Median |
66.8 |
717.8 |
2.48 |
| Deviation |
12.0 |
247.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
273.8 ± 67.8 |
21.6 ± 15.6 |
113.1 ± 21.3 |
171.2 ± 31.1 |
17.93 ± 9.50 |
1.65 ± 0.55 |
| VC |
314.6 ± 91.1 |
12.4 ± 8.8 |
66.2 ± 12.4 |
172.5 ± 31.1 |
35.80 ± 19.46 |
1.89 ± 0.71 |
| MX1 |
307.2 ± 86.2 |
18.5 ± 13.3 |
97.5 ± 18.3 |
171.7 ± 31.1 |
23.61 ± 12.75 |
1.85 ± 0.68 |
| MX2 |
307.7 ± 87.8 |
17.8 ± 12.8 |
94.2 ± 17.7 |
171.8 ± 31.1 |
24.51 ± 13.28 |
1.85 ± 0.69 |
| MX3 |
308.2 ± 88.5 |
17.5 ± 12.5 |
92.4 ± 17.4 |
171.8 ± 31.1 |
25.04 ± 13.58 |
1.86 ± 0.70 |
| RH8 |
19.1 ± 27.5 |
7.0 ± 4.9 |
37.3 ± 7.0 |
172.9 ± 31.1 |
5.06 ± 4.37 |
0.12 ± 0.18 |
| RH9 |
19.1 ± 27.5 |
7.0 ± 4.9 |
37.3 ± 7.0 |
172.9 ± 31.1 |
5.06 ± 4.37 |
0.12 ± 0.18 |
| RH10 |
19.1 ± 27.5 |
7.0 ± 4.9 |
37.3 ± 7.0 |
172.9 ± 31.1 |
5.06 ± 4.37 |
0.12 ± 0.18 |
| Average |
196.1 |
13.6 |
71.9 |
172.2 |
17.8 |
1.2 |
| Median |
307.2 |
17.5 |
92.4 |
172.5 |
23.6 |
1.9 |
| Deviation |
147.1 |
6.0 |
31.4 |
0.7 |
11.6 |
0.9 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
111.9 ± 15.2 |
47.4 ± 6.0 |
185.3 ± 17.2 |
281.0 ± 25.8 |
2.39 ± 0.46 |
0.40 ± 0.09 |
| VC |
130.2 ± 20.4 |
27.5 ± 3.4 |
108.4 ± 10.1 |
283.6 ± 25.9 |
4.82 ± 1.05 |
0.47 ± 0.11 |
| MX1 |
125.9 ± 18.5 |
40.7 ± 5.1 |
159.6 ± 14.8 |
282.0 ± 25.8 |
3.14 ± 0.66 |
0.45 ± 0.10 |
| MX2 |
126.0 ± 18.9 |
39.3 ± 5.0 |
154.2 ± 14.3 |
282.2 ± 25.9 |
3.26 ± 0.69 |
0.45 ± 0.10 |
| MX3 |
126.4 ± 19.0 |
38.5 ± 4.9 |
151.3 ± 14.1 |
282.3 ± 25.9 |
3.33 ± 0.71 |
0.45 ± 0.10 |
| RH8 |
10.7 ± 12.9 |
15.4 ± 1.9 |
61.1 ± 5.7 |
284.6 ± 26.0 |
0.73 ± 0.91 |
0.04 ± 0.05 |
| RH9 |
10.7 ± 12.9 |
15.4 ± 1.9 |
61.1 ± 5.7 |
284.6 ± 26.0 |
0.73 ± 0.91 |
0.04 ± 0.05 |
| RH10 |
10.7 ± 12.9 |
15.4 ± 1.9 |
61.1 ± 5.7 |
284.6 ± 26.0 |
0.73 ± 0.91 |
0.04 ± 0.05 |
| Average |
81.6 |
30.0 |
117.8 |
283.1 |
2.4 |
0.3 |
| Median |
125.9 |
38.5 |
151.3 |
283.6 |
3.1 |
0.5 |
| Deviation |
58.9 |
13.2 |
51.4 |
1.4 |
1.5 |
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)
| 
