Database: Wind Shock Analysis
Event ID: 20211461145
Observation time: 05/26/2021 146.48967 1145 [UT]
|
|
General
Information (About, Top)
| Year |
2021 |
| Fractional day of year |
146.489670 |
| Arrival time of shock [seconds of day] |
42307.5 ± 60.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
204.557 |
| Y GSE location of spacecraft [Re] |
77.366 |
| Z GSE location of spacecraft [Re] |
-6.423 |
| Upstream plasma points selected for analysis |
0004 |
| Upstream field points selected for analysis |
0137 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0222 |
| Minimum chisq/dof for RH8,RH9,RH10 |
9.31, 29.51, 32.88 |
Event added to database
|
Thu Jan 13 10:19:18 2022
|
Event last processed
|
Fri Jan 14 11:37:03 2022
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
56.899 ± 2.593
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-298.5 ± 1.0 |
-350.3 ± 2.1 |
| Vy GSE [km/s] |
-6.5 ± 0.6 |
-28.7 ± 2.1 |
| Vz GSE [km/s] |
-8.5 ± 1.1 |
-26.3 ± 5.6 |
| Wi [km/s] |
17.9 ± 1.1 |
27.1 ± 1.6 |
| We [km/s] |
567.3 ± 34.1 |
855.8 ± 49.8 |
| Ni [n/cc] |
7.8 ± 0.6 |
18.7 ± 1.1 |
| Bx GSE [nT] |
-1.2 ± 0.5 |
-2.5 ± 0.3 |
| By GSE [nT] |
2.4 ± 0.1 |
7.3 ± 0.4 |
| Bz GSE [nT] |
-1.6 ± 0.2 |
-1.4 ± 0.7 |
Plasma Beta
|
0.522 ± 0.523
|
0.462 ± 0.470
|
Sound Speed [km/s]
|
23.16 ± 1.39
|
34.94 ± 2.04
|
Alfven Speed [km/s]
|
24.86 ± 0.82
|
40.02 ± 2.43
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.843 ± 0.556 |
-0.090 ± 0.501 |
-0.530 ± 0.474 |
-32.00 ± 60.13 |
186.08 ± 33.81 |
| VC |
-0.877 ± 0.026 |
-0.376 ± 0.026 |
-0.298 ± 0.289 |
-17.36 ± 4.88 |
203.18 ± 1.57 |
| MX1 |
-0.903 ± 0.043 |
-0.229 ± 0.079 |
-0.363 ± 0.346 |
-21.30 ± 6.17 |
194.20 ± 4.97 |
| MX2 |
-0.917 ± 0.033 |
-0.238 ± 0.075 |
-0.319 ± 0.308 |
-18.59 ± 4.97 |
194.57 ± 4.67 |
| MX3 |
-0.924 ± 0.030 |
-0.242 ± 0.074 |
-0.296 ± 0.287 |
-17.23 ± 4.62 |
194.71 ± 4.57 |
| RH08 |
-0.951 ± 0.005 |
-0.229 ± 0.013 |
-0.207 ± 0.204 |
-11.93 ± 1.07 |
193.54 ± 0.81 |
| RH09 |
-0.871 ± 0.035 |
-0.162 ± 0.062 |
0.464 ± 0.427 |
27.63 ± 4.18 |
190.53 ± 4.03 |
| RH10 |
-0.895 ± 0.031 |
-0.150 ± 0.069 |
0.419 ± 0.393 |
24.77 ± 3.98 |
189.53 ± 4.37 |
| Average |
-0.898 |
-0.215 |
-0.141 |
-8.254 |
193.291 |
| Median |
-0.895 |
-0.229 |
-0.296 |
-17.234 |
194.204 |
| Deviation |
0.034 |
0.085 |
0.371 |
22.027 |
5.014 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
59.1 ± 6.1 |
351.0 ± 2.0 |
2.36 ± 0.12 |
| VC |
79.2 ± 6.7 |
369.0 ± 1.9 |
2.36 ± 0.12 |
| MX1 |
69.9 ± 6.8 |
375.0 ± 2.0 |
2.36 ± 0.12 |
| MX2 |
71.5 ± 7.0 |
379.0 ± 1.9 |
2.36 ± 0.12 |
| MX3 |
72.2 ± 7.1 |
380.5 ± 1.9 |
2.36 ± 0.12 |
| RH08 |
73.7 ± 7.5 |
386.3 ± 1.8 |
2.36 ± 0.12 |
| RH09 |
87.5 ± 8.8 |
326.9 ± 1.2 |
2.36 ± 0.12 |
| RH10 |
89.9 ± 8.8 |
337.7 ± 6.5 |
2.36 ± 0.12 |
| Average |
75.4 |
363.2 |
2.36 |
| Median |
73.7 |
375.0 |
2.36 |
| Deviation |
10.0 |
22.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
94.3 ± 1.0 |
9.0 ± 0.4 |
12.8 ± 0.4 |
32.8 ± 1.3 |
10.47 ± 0.38 |
2.88 ± 0.10 |
| VC |
102.1 ± 1.0 |
3.2 ± 0.1 |
4.7 ± 0.2 |
33.8 ± 1.4 |
32.10 ± 1.29 |
3.02 ± 0.11 |
| MX1 |
100.9 ± 1.0 |
5.9 ± 0.3 |
8.5 ± 0.3 |
33.5 ± 1.4 |
17.12 ± 0.67 |
3.02 ± 0.11 |
| MX2 |
100.9 ± 1.0 |
5.5 ± 0.2 |
7.9 ± 0.3 |
33.5 ± 1.4 |
18.51 ± 0.73 |
3.01 ± 0.11 |
| MX3 |
100.7 ± 1.0 |
5.2 ± 0.2 |
7.6 ± 0.3 |
33.6 ± 1.4 |
19.24 ± 0.76 |
3.00 ± 0.11 |
| RH8 |
99.1 ± 1.0 |
4.8 ± 0.2 |
7.0 ± 0.2 |
33.6 ± 1.4 |
20.71 ± 0.83 |
2.95 ± 0.11 |
| RH9 |
69.8 ± 1.1 |
0.7 ± 0.0 |
1.1 ± 0.0 |
34.0 ± 1.4 |
95.43 ± 4.58 |
2.06 ± 0.09 |
| RH10 |
73.0 ± 1.1 |
0.0 ± 0.0 |
0.1 ± 0.0 |
34.0 ± 1.4 |
1994.26 ± 93.77 |
2.15 ± 0.09 |
| Average |
92.6 |
4.3 |
6.2 |
33.6 |
276.0 |
2.8 |
| Median |
100.7 |
5.2 |
7.6 |
33.6 |
20.7 |
3.0 |
| Deviation |
13.3 |
2.9 |
4.1 |
0.4 |
694.8 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
39.1 ± 3.7 |
14.0 ± 0.6 |
20.5 ± 1.2 |
51.3 ± 2.3 |
2.82 ± 0.39 |
0.77 ± 0.11 |
| VC |
43.0 ± 3.3 |
4.9 ± 0.2 |
7.5 ± 0.5 |
52.9 ± 2.4 |
8.74 ± 1.04 |
0.82 ± 0.10 |
| MX1 |
42.6 ± 3.3 |
9.2 ± 0.4 |
13.7 ± 0.8 |
52.4 ± 2.4 |
4.67 ± 0.56 |
0.82 ± 0.10 |
| MX2 |
42.4 ± 3.1 |
8.5 ± 0.4 |
12.7 ± 0.8 |
52.5 ± 2.4 |
5.03 ± 0.59 |
0.81 ± 0.10 |
| MX3 |
42.2 ± 3.1 |
8.1 ± 0.4 |
12.2 ± 0.7 |
52.5 ± 2.4 |
5.21 ± 0.60 |
0.81 ± 0.10 |
| RH8 |
41.1 ± 2.8 |
7.4 ± 0.3 |
11.2 ± 0.7 |
52.6 ± 2.4 |
5.55 ± 0.61 |
0.78 ± 0.09 |
| RH9 |
29.3 ± 3.0 |
1.1 ± 0.1 |
1.7 ± 0.1 |
53.1 ± 2.4 |
25.80 ± 2.73 |
0.55 ± 0.06 |
| RH10 |
30.8 ± 2.9 |
0.1 ± 0.0 |
0.1 ± 0.0 |
53.2 ± 2.4 |
541.26 ± 53.62 |
0.58 ± 0.06 |
| Average |
38.8 |
6.7 |
10.0 |
52.6 |
74.9 |
0.7 |
| Median |
42.2 |
8.1 |
12.2 |
52.6 |
5.5 |
0.8 |
| Deviation |
5.6 |
4.5 |
6.7 |
0.6 |
188.6 |
0.1 |
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 13:39:48 2022
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
