Database: Wind Shock Analysis
Event ID: 20212850146
Observation time: 10/12/2021 285.07415 0146 [UT]
|
|
General
Information (About, Top)
| Year |
2021 |
| Fractional day of year |
285.074149 |
| Arrival time of shock [seconds of day] |
6406.5 ± 80.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
200.512 |
| Y GSE location of spacecraft [Re] |
-66.074 |
| Z GSE location of spacecraft [Re] |
-7.530 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0270 |
| Downstream plasma points selected for analysis |
0006
|
| Downstream field points selected for analysis |
0209 |
| Minimum chisq/dof for RH8,RH9,RH10 |
4.31, 16.35, 16.85 |
Event added to database
|
Thu Jan 13 11:25:12 2022
|
Event last processed
|
Fri Jan 14 11:49:10 2022
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
42.487 ± 1.876
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-361.2 ± 3.7 |
-472.6 ± 5.6 |
| Vy GSE [km/s] |
14.6 ± 2.2 |
50.5 ± 14.2 |
| Vz GSE [km/s] |
-12.9 ± 4.2 |
-43.5 ± 14.7 |
| Wi [km/s] |
29.7 ± 2.2 |
90.2 ± 7.5 |
| We [km/s] |
938.1 ± 70.0 |
2853.8 ± 237.0 |
| Ni [n/cc] |
5.5 ± 0.6 |
20.1 ± 1.6 |
| Bx GSE [nT] |
-2.8 ± 0.8 |
-0.5 ± 0.6 |
| By GSE [nT] |
2.4 ± 0.5 |
4.2 ± 1.6 |
| Bz GSE [nT] |
-4.3 ± 0.2 |
-10.3 ± 1.6 |
Plasma Beta
|
0.317 ± 0.328
|
2.799 ± 2.649
|
Sound Speed [km/s]
|
38.30 ± 2.86
|
116.51 ± 9.67
|
Alfven Speed [km/s]
|
53.27 ± 3.23
|
54.90 ± 4.46
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.879 ± 0.101 |
0.373 ± 0.216 |
-0.297 ± 0.288 |
-17.28 ± 8.90 |
157.01 ± 14.06 |
| VC |
-0.924 ± 0.036 |
0.293 ± 0.092 |
-0.246 ± 0.241 |
-14.23 ± 5.37 |
162.38 ± 5.68 |
| MX1 |
-0.914 ± 0.035 |
0.298 ± 0.073 |
-0.275 ± 0.268 |
-15.97 ± 5.65 |
161.95 ± 4.56 |
| MX2 |
-0.914 ± 0.035 |
0.299 ± 0.075 |
-0.274 ± 0.267 |
-15.91 ± 5.43 |
161.90 ± 4.65 |
| MX3 |
-0.914 ± 0.035 |
0.299 ± 0.076 |
-0.274 ± 0.267 |
-15.93 ± 5.39 |
161.91 ± 4.72 |
| RH08 |
-0.964 ± 0.004 |
0.179 ± 0.016 |
-0.196 ± 0.193 |
-11.28 ± 0.89 |
169.47 ± 0.94 |
| RH09 |
-0.949 ± 0.022 |
0.228 ± 0.069 |
-0.218 ± 0.214 |
-12.58 ± 3.96 |
166.46 ± 4.17 |
| RH10 |
-0.950 ± 0.022 |
0.211 ± 0.069 |
-0.229 ± 0.225 |
-13.24 ± 3.97 |
167.47 ± 4.17 |
| Average |
-0.926 |
0.273 |
-0.251 |
-14.552 |
163.569 |
| Median |
-0.914 |
0.298 |
-0.246 |
-14.232 |
162.379 |
| Deviation |
0.027 |
0.062 |
0.035 |
2.056 |
3.981 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
34.9 ± 7.2 |
488.2 ± 3.2 |
3.59 ± 0.57 |
| VC |
39.5 ± 7.8 |
502.8 ± 3.0 |
3.59 ± 0.57 |
| MX1 |
37.8 ± 7.9 |
499.6 ± 3.1 |
3.59 ± 0.57 |
| MX2 |
37.8 ± 7.8 |
499.6 ± 3.1 |
3.59 ± 0.57 |
| MX3 |
37.8 ± 7.8 |
499.6 ± 3.1 |
3.59 ± 0.57 |
| RH08 |
45.1 ± 8.4 |
514.0 ± 2.7 |
3.59 ± 0.57 |
| RH09 |
42.6 ± 8.2 |
510.4 ± 2.8 |
3.59 ± 0.57 |
| RH10 |
42.5 ± 8.3 |
510.1 ± 19.5 |
3.59 ± 0.57 |
| Average |
39.8 |
503.0 |
3.59 |
| Median |
39.5 |
502.8 |
3.59 |
| Deviation |
3.4 |
8.3 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
161.4 ± 3.3 |
28.1 ± 1.5 |
43.7 ± 2.6 |
59.4 ± 2.4 |
5.75 ± 0.27 |
2.72 ± 0.12 |
| VC |
161.6 ± 3.4 |
26.0 ± 1.3 |
41.1 ± 2.5 |
60.3 ± 2.4 |
6.22 ± 0.28 |
2.68 ± 0.11 |
| MX1 |
161.6 ± 3.4 |
26.8 ± 1.4 |
42.1 ± 2.6 |
59.9 ± 2.4 |
6.03 ± 0.27 |
2.70 ± 0.12 |
| MX2 |
161.5 ± 3.4 |
26.8 ± 1.4 |
42.1 ± 2.5 |
60.0 ± 2.4 |
6.03 ± 0.27 |
2.70 ± 0.12 |
| MX3 |
161.6 ± 3.4 |
26.8 ± 1.4 |
42.1 ± 2.5 |
60.0 ± 2.4 |
6.03 ± 0.27 |
2.70 ± 0.12 |
| RH8 |
160.6 ± 3.5 |
23.4 ± 1.1 |
37.6 ± 2.3 |
61.4 ± 2.4 |
6.87 ± 0.30 |
2.62 ± 0.11 |
| RH9 |
161.5 ± 3.5 |
24.6 ± 1.2 |
39.2 ± 2.4 |
60.9 ± 2.4 |
6.58 ± 0.29 |
2.65 ± 0.11 |
| RH10 |
160.9 ± 3.5 |
24.7 ± 1.2 |
39.3 ± 2.4 |
60.9 ± 2.4 |
6.53 ± 0.29 |
2.65 ± 0.11 |
| Average |
161.3 |
25.9 |
40.9 |
60.3 |
6.3 |
2.7 |
| Median |
161.5 |
26.8 |
42.1 |
60.3 |
6.2 |
2.7 |
| Deviation |
0.4 |
1.6 |
2.0 |
0.7 |
0.4 |
0.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
41.0 ± 12.8 |
43.1 ± 3.1 |
45.0 ± 3.7 |
121.5 ± 8.8 |
0.94 ± 0.26 |
0.34 ± 0.12 |
| VC |
40.6 ± 11.4 |
40.2 ± 2.8 |
42.3 ± 3.4 |
122.5 ± 8.6 |
1.00 ± 0.25 |
0.34 ± 0.11 |
| MX1 |
40.6 ± 11.8 |
41.3 ± 2.9 |
43.4 ± 3.5 |
122.1 ± 8.7 |
0.97 ± 0.26 |
0.34 ± 0.11 |
| MX2 |
40.6 ± 11.8 |
41.3 ± 2.9 |
43.4 ± 3.5 |
122.1 ± 8.7 |
0.97 ± 0.26 |
0.34 ± 0.11 |
| MX3 |
40.6 ± 11.8 |
41.3 ± 2.9 |
43.4 ± 3.5 |
122.1 ± 8.7 |
0.97 ± 0.26 |
0.34 ± 0.11 |
| RH8 |
40.7 ± 9.7 |
36.5 ± 2.5 |
38.8 ± 3.2 |
123.6 ± 8.5 |
1.11 ± 0.24 |
0.33 ± 0.09 |
| RH9 |
40.9 ± 10.5 |
38.2 ± 2.6 |
40.4 ± 3.3 |
123.1 ± 8.5 |
1.07 ± 0.24 |
0.34 ± 0.10 |
| RH10 |
40.4 ± 10.4 |
38.3 ± 2.6 |
40.5 ± 3.3 |
123.1 ± 8.5 |
1.05 ± 0.24 |
0.33 ± 0.10 |
| Average |
40.7 |
40.0 |
42.1 |
122.5 |
1.0 |
0.3 |
| Median |
40.6 |
41.3 |
43.4 |
122.5 |
1.0 |
0.3 |
| Deviation |
0.2 |
2.2 |
2.1 |
0.7 |
0.1 |
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 Fri Jan 14 13:39:30 2022
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
