Database: Wind Shock Analysis
Event ID: 20211142228
Observation time: 04/24/2021 114.93634 2228 [UT]
|
|
General
Information (About, Top)
| Year |
2021 |
| Fractional day of year |
114.936337 |
| Arrival time of shock [seconds of day] |
80899.5 ± 30.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
198.784 |
| Y GSE location of spacecraft [Re] |
-31.439 |
| Z GSE location of spacecraft [Re] |
-10.136 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0244 |
| Downstream plasma points selected for analysis |
0003
|
| Downstream field points selected for analysis |
0113 |
| Minimum chisq/dof for RH8,RH9,RH10 |
7.12, 11.47, 12.52 |
Event added to database
|
Wed Jan 12 15:48:21 2022
|
Event last processed
|
Fri Jan 14 11:27:47 2022
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
38.361 ± 1.382
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-426.2 ± 1.0 |
-466.4 ± 2.1 |
| Vy GSE [km/s] |
-13.6 ± 0.8 |
-27.1 ± 7.9 |
| Vz GSE [km/s] |
26.8 ± 1.4 |
39.8 ± 6.4 |
| Wi [km/s] |
26.6 ± 0.7 |
32.7 ± 0.7 |
| We [km/s] |
840.9 ± 22.1 |
1034.3 ± 21.9 |
| Ni [n/cc] |
4.1 ± 0.1 |
7.5 ± 0.4 |
| Bx GSE [nT] |
2.0 ± 0.1 |
3.3 ± 0.5 |
| By GSE [nT] |
-3.1 ± 0.1 |
-7.2 ± 0.4 |
| Bz GSE [nT] |
2.6 ± 0.2 |
1.8 ± 1.4 |
Plasma Beta
|
0.298 ± 0.295
|
0.252 ± 0.262
|
Sound Speed [km/s]
|
34.33 ± 0.90
|
42.23 ± 0.90
|
Alfven Speed [km/s]
|
48.79 ± 1.14
|
65.48 ± 3.84
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.428 ± 0.151 |
0.079 ± 0.245 |
-0.900 ± 0.488 |
-64.18 ± 9.33 |
169.51 ± 32.62 |
| VC |
-0.908 ± 0.058 |
-0.304 ± 0.144 |
0.287 ± 0.279 |
16.71 ± 6.95 |
198.50 ± 9.08 |
| MX1 |
-0.897 ± 0.060 |
-0.321 ± 0.113 |
0.303 ± 0.294 |
17.67 ± 8.95 |
199.69 ± 7.17 |
| MX2 |
-0.900 ± 0.054 |
-0.320 ± 0.109 |
0.296 ± 0.287 |
17.25 ± 7.87 |
199.60 ± 6.89 |
| MX3 |
-0.901 ± 0.051 |
-0.322 ± 0.107 |
0.291 ± 0.283 |
16.94 ± 7.09 |
199.64 ± 6.76 |
| RH08 |
-0.968 ± 0.008 |
-0.145 ± 0.026 |
0.207 ± 0.204 |
11.93 ± 1.84 |
188.52 ± 1.56 |
| RH09 |
-0.984 ± 0.012 |
-0.165 ± 0.068 |
0.073 ± 0.072 |
4.16 ± 4.03 |
189.53 ± 3.95 |
| RH10 |
-0.984 ± 0.012 |
-0.165 ± 0.068 |
0.073 ± 0.072 |
4.16 ± 4.03 |
189.53 ± 3.95 |
| Average |
-0.871 |
-0.208 |
0.079 |
3.079 |
191.814 |
| Median |
-0.901 |
-0.165 |
0.287 |
16.707 |
198.500 |
| Deviation |
0.183 |
0.140 |
0.407 |
27.765 |
10.333 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
40.7 ± 2.2 |
163.9 ± 2.2 |
1.80 ± 0.16 |
| VC |
88.6 ± 1.5 |
497.6 ± 1.3 |
1.80 ± 0.16 |
| MX1 |
89.9 ± 1.5 |
493.4 ± 1.3 |
1.80 ± 0.16 |
| MX2 |
89.8 ± 1.5 |
494.2 ± 1.3 |
1.80 ± 0.16 |
| MX3 |
89.6 ± 1.5 |
494.5 ± 1.4 |
1.80 ± 0.16 |
| RH08 |
78.1 ± 1.5 |
517.5 ± 1.3 |
1.80 ± 0.16 |
| RH09 |
74.0 ± 1.3 |
518.0 ± 1.5 |
1.80 ± 0.16 |
| RH10 |
74.0 ± 1.3 |
518.0 ± 6.6 |
1.80 ± 0.16 |
| Average |
78.1 |
462.1 |
1.80 |
| Median |
88.6 |
497.6 |
1.80 |
| Deviation |
16.7 |
121.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
6.6 ± 1.4 |
23.1 ± 0.3 |
37.0 ± 0.9 |
55.0 ± 0.7 |
0.28 ± 0.06 |
0.12 ± 0.03 |
| VC |
98.6 ± 1.0 |
0.7 ± 0.0 |
1.2 ± 0.0 |
59.7 ± 0.6 |
146.20 ± 2.74 |
1.65 ± 0.02 |
| MX1 |
98.5 ± 1.0 |
0.1 ± 0.0 |
0.1 ± 0.0 |
59.7 ± 0.6 |
1936.56 ± 36.14 |
1.65 ± 0.02 |
| MX2 |
98.4 ± 1.0 |
0.1 ± 0.0 |
0.2 ± 0.0 |
59.7 ± 0.6 |
944.17 ± 17.64 |
1.65 ± 0.02 |
| MX3 |
98.3 ± 1.0 |
0.2 ± 0.0 |
0.3 ± 0.0 |
59.7 ± 0.6 |
546.64 ± 10.23 |
1.65 ± 0.02 |
| RH8 |
97.6 ± 1.0 |
5.8 ± 0.1 |
10.1 ± 0.2 |
59.4 ± 0.6 |
16.79 ± 0.33 |
1.64 ± 0.02 |
| RH9 |
94.6 ± 1.0 |
7.8 ± 0.1 |
13.5 ± 0.3 |
59.2 ± 0.6 |
12.11 ± 0.25 |
1.60 ± 0.02 |
| RH10 |
94.6 ± 1.0 |
7.8 ± 0.1 |
13.5 ± 0.3 |
59.2 ± 0.6 |
12.11 ± 0.25 |
1.60 ± 0.02 |
| Average |
85.9 |
5.7 |
9.5 |
58.9 |
451.9 |
1.4 |
| Median |
98.3 |
5.8 |
10.1 |
59.7 |
146.2 |
1.6 |
| Deviation |
32.1 |
7.8 |
12.6 |
1.6 |
689.6 |
0.5 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
2.1 ± 4.7 |
28.9 ± 0.4 |
49.6 ± 2.9 |
72.4 ± 3.2 |
0.07 ± 0.16 |
0.03 ± 0.06 |
| VC |
54.3 ± 1.1 |
0.9 ± 0.0 |
1.6 ± 0.1 |
77.9 ± 3.0 |
63.74 ± 0.31 |
0.70 ± 0.02 |
| MX1 |
54.2 ± 1.0 |
0.1 ± 0.0 |
0.1 ± 0.0 |
77.9 ± 3.0 |
843.27 ± 3.12 |
0.70 ± 0.02 |
| MX2 |
54.1 ± 1.0 |
0.1 ± 0.0 |
0.2 ± 0.0 |
77.9 ± 3.0 |
410.85 ± 1.31 |
0.69 ± 0.02 |
| MX3 |
54.0 ± 1.0 |
0.2 ± 0.0 |
0.4 ± 0.0 |
77.9 ± 3.0 |
237.69 ± 0.63 |
0.69 ± 0.02 |
| RH8 |
54.1 ± 2.0 |
7.3 ± 0.1 |
13.5 ± 0.8 |
77.6 ± 3.0 |
7.37 ± 0.16 |
0.70 ± 0.02 |
| RH9 |
51.9 ± 1.3 |
9.9 ± 0.2 |
18.1 ± 1.1 |
77.3 ± 3.0 |
5.26 ± 0.07 |
0.67 ± 0.03 |
| RH10 |
51.9 ± 1.3 |
9.9 ± 0.2 |
18.1 ± 1.1 |
77.3 ± 3.0 |
5.26 ± 0.07 |
0.67 ± 0.03 |
| Average |
47.1 |
7.2 |
12.7 |
77.0 |
196.7 |
0.6 |
| Median |
54.1 |
7.3 |
13.5 |
77.9 |
63.7 |
0.7 |
| Deviation |
18.2 |
9.8 |
16.9 |
1.9 |
300.3 |
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 Fri Jan 14 13:39:59 2022
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
