Database: Wind Shock Analysis
Event ID: 20212781329
Observation time: 10/05/2021 278.56245 1329 [UT]
|
|
General
Information (About, Top)
| Year |
2021 |
| Fractional day of year |
278.562448 |
| Arrival time of shock [seconds of day] |
48595.5 ± 30.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
204.790 |
| Y GSE location of spacecraft [Re] |
-83.387 |
| Z GSE location of spacecraft [Re] |
-5.170 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0261 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0236 |
| Minimum chisq/dof for RH8,RH9,RH10 |
14.88, 52.69, 60.84 |
Event added to database
|
Thu Jan 13 11:23:48 2022
|
Event last processed
|
Fri Jan 14 11:46:38 2022
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
158.467 ± 49.566
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-292.0 ± 1.1 |
-316.2 ± 0.8 |
| Vy GSE [km/s] |
-11.6 ± 0.5 |
-17.1 ± 1.1 |
| Vz GSE [km/s] |
5.9 ± 0.9 |
-8.5 ± 1.5 |
| Wi [km/s] |
12.7 ± 0.7 |
16.0 ± 0.6 |
| We [km/s] |
402.6 ± 22.7 |
506.4 ± 20.4 |
| Ni [n/cc] |
4.4 ± 0.2 |
7.3 ± 0.2 |
| Bx GSE [nT] |
-1.1 ± 0.1 |
-0.3 ± 0.1 |
| By GSE [nT] |
2.6 ± 0.0 |
4.6 ± 0.1 |
| Bz GSE [nT] |
-0.9 ± 0.1 |
-2.3 ± 0.2 |
Plasma Beta
|
0.172 ± 0.167
|
0.146 ± 0.144
|
Sound Speed [km/s]
|
16.44 ± 0.93
|
20.67 ± 0.83
|
Alfven Speed [km/s]
|
30.88 ± 1.11
|
42.02 ± 0.84
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.875 ± 0.033 |
0.459 ± 0.061 |
0.150 ± 0.149 |
8.64 ± 4.27 |
152.32 ± 3.95 |
| VC |
-0.845 ± 0.027 |
-0.190 ± 0.042 |
-0.501 ± 0.454 |
-30.05 ± 3.00 |
192.67 ± 2.79 |
| MX1 |
-0.853 ± 0.025 |
-0.035 ± 0.057 |
-0.521 ± 0.467 |
-31.37 ± 2.69 |
182.32 ± 3.84 |
| MX2 |
-0.832 ± 0.024 |
-0.064 ± 0.053 |
-0.550 ± 0.487 |
-33.39 ± 2.51 |
184.39 ± 3.61 |
| MX3 |
-0.812 ± 0.026 |
-0.090 ± 0.049 |
-0.576 ± 0.502 |
-35.19 ± 2.50 |
186.35 ± 3.47 |
| RH08 |
-0.404 ± 0.025 |
0.591 ± 0.025 |
0.698 ± 0.553 |
44.29 ± 2.00 |
124.35 ± 2.00 |
| RH09 |
-0.123 ± 0.072 |
-0.485 ± 0.037 |
-0.866 ± 0.524 |
-59.99 ± 2.20 |
255.71 ± 8.41 |
| RH10 |
-0.961 ± 0.019 |
0.196 ± 0.065 |
-0.196 ± 0.193 |
-11.28 ± 4.05 |
168.47 ± 3.86 |
| Average |
-0.713 |
0.048 |
-0.295 |
-18.541 |
180.822 |
| Median |
-0.832 |
-0.035 |
-0.501 |
-30.047 |
184.394 |
| Deviation |
0.291 |
0.351 |
0.501 |
32.188 |
37.700 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
47.8 ± 2.0 |
293.7 ± 0.4 |
1.65 ± 0.11 |
| VC |
73.3 ± 1.0 |
319.3 ± 1.0 |
1.65 ± 0.11 |
| MX1 |
64.3 ± 1.0 |
318.7 ± 0.9 |
1.65 ± 0.11 |
| MX2 |
65.8 ± 1.0 |
313.1 ± 0.9 |
1.65 ± 0.11 |
| MX3 |
67.2 ± 1.0 |
307.4 ± 1.0 |
1.65 ± 0.11 |
| RH08 |
63.2 ± 2.1 |
106.3 ± 0.4 |
1.65 ± 0.11 |
| RH09 |
83.3 ± 1.6 |
82.8 ± 0.8 |
1.65 ± 0.11 |
| RH10 |
54.8 ± 1.4 |
341.1 ± 5.2 |
1.65 ± 0.11 |
| Average |
65.0 |
260.3 |
1.65 |
| Median |
65.8 |
313.1 |
1.65 |
| Deviation |
10.8 |
103.4 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
42.5 ± 1.0 |
10.2 ± 0.4 |
20.7 ± 0.7 |
33.5 ± 0.8 |
4.19 ± 0.24 |
1.27 ± 0.03 |
| VC |
73.4 ± 0.7 |
4.2 ± 0.2 |
8.9 ± 0.3 |
34.8 ± 0.7 |
17.51 ± 0.68 |
2.11 ± 0.04 |
| MX1 |
72.2 ± 0.7 |
6.4 ± 0.2 |
13.4 ± 0.5 |
34.4 ± 0.7 |
11.32 ± 0.45 |
2.10 ± 0.04 |
| MX2 |
72.5 ± 0.7 |
6.0 ± 0.2 |
12.7 ± 0.5 |
34.5 ± 0.7 |
12.05 ± 0.47 |
2.10 ± 0.04 |
| MX3 |
72.6 ± 0.7 |
5.7 ± 0.2 |
12.0 ± 0.4 |
34.5 ± 0.7 |
12.78 ± 0.49 |
2.10 ± 0.04 |
| RH8 |
-8.8 ± 0.9 |
6.7 ± 0.3 |
13.9 ± 0.5 |
34.4 ± 0.7 |
-1.32 ± 0.10 |
-0.26 ± 0.03 |
| RH9 |
46.2 ± 0.7 |
1.7 ± 0.1 |
3.6 ± 0.1 |
35.0 ± 0.7 |
27.11 ± 0.68 |
1.32 ± 0.03 |
| RH10 |
64.0 ± 0.9 |
8.6 ± 0.3 |
17.8 ± 0.6 |
33.9 ± 0.7 |
7.44 ± 0.35 |
1.89 ± 0.04 |
| Average |
54.3 |
6.2 |
12.9 |
34.4 |
11.4 |
1.6 |
| Median |
72.2 |
6.4 |
13.4 |
34.5 |
12.0 |
2.1 |
| Deviation |
28.4 |
2.6 |
5.2 |
0.5 |
8.6 |
0.8 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
26.0 ± 0.9 |
13.0 ± 0.5 |
28.2 ± 0.6 |
45.0 ± 0.9 |
2.01 ± 0.08 |
0.58 ± 0.01 |
| VC |
44.7 ± 1.3 |
5.4 ± 0.2 |
12.1 ± 0.2 |
46.5 ± 0.9 |
8.34 ± 0.27 |
0.96 ± 0.02 |
| MX1 |
43.9 ± 1.4 |
8.2 ± 0.3 |
18.2 ± 0.4 |
46.1 ± 0.9 |
5.38 ± 0.19 |
0.95 ± 0.02 |
| MX2 |
44.1 ± 1.4 |
7.7 ± 0.3 |
17.2 ± 0.3 |
46.2 ± 0.9 |
5.72 ± 0.20 |
0.95 ± 0.02 |
| MX3 |
44.1 ± 1.4 |
7.3 ± 0.2 |
16.3 ± 0.3 |
46.3 ± 0.9 |
6.07 ± 0.21 |
0.95 ± 0.02 |
| RH8 |
-5.3 ± 0.6 |
8.5 ± 0.3 |
19.0 ± 0.4 |
46.1 ± 0.9 |
-0.63 ± 0.06 |
-0.12 ± 0.01 |
| RH9 |
28.1 ± 1.1 |
2.2 ± 0.1 |
4.9 ± 0.1 |
46.8 ± 0.9 |
12.88 ± 0.46 |
0.60 ± 0.02 |
| RH10 |
38.9 ± 1.2 |
11.0 ± 0.4 |
24.2 ± 0.5 |
45.5 ± 0.9 |
3.55 ± 0.13 |
0.86 ± 0.02 |
| Average |
33.1 |
7.9 |
17.5 |
46.1 |
5.4 |
0.7 |
| Median |
43.9 |
8.2 |
18.2 |
46.2 |
5.7 |
1.0 |
| Deviation |
17.2 |
3.3 |
7.1 |
0.6 |
4.1 |
0.4 |
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 13:41:22 2022
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
