Database: Wind Shock Analysis
Event ID: 20211961915
Observation time: 07/15/2021 196.80224 1915 [UT]
|
|
General
Information (About, Top)
| Year |
2021 |
| Fractional day of year |
196.802240 |
| Arrival time of shock [seconds of day] |
69313.5 ± 20.0 |
| Shock type |
FR |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
257.872 |
| Y GSE location of spacecraft [Re] |
58.601 |
| Z GSE location of spacecraft [Re] |
11.749 |
| Upstream plasma points selected for analysis |
0004 |
| Upstream field points selected for analysis |
0149 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0139 |
| Minimum chisq/dof for RH8,RH9,RH10 |
25.89, 52.88, 61.78 |
Event added to database
|
Thu Jan 13 10:31:11 2022
|
Event last processed
|
Fri Jan 14 11:44:06 2022
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
67.041 ± 0.250
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-443.6 ± 2.2 |
-485.4 ± 1.4 |
| Vy GSE [km/s] |
-3.2 ± 1.9 |
-1.9 ± 2.8 |
| Vz GSE [km/s] |
-25.2 ± 2.5 |
-13.2 ± 0.4 |
| Wi [km/s] |
54.6 ± 0.9 |
45.4 ± 1.0 |
| We [km/s] |
1725.5 ± 29.1 |
1436.2 ± 32.4 |
| Ni [n/cc] |
6.8 ± 0.3 |
3.2 ± 0.0 |
| Bx GSE [nT] |
1.7 ± 0.3 |
2.0 ± 0.2 |
| By GSE [nT] |
-4.5 ± 0.3 |
0.3 ± 0.4 |
| Bz GSE [nT] |
-0.8 ± 0.8 |
-2.7 ± 0.2 |
Plasma Beta
|
1.739 ± 1.696
|
1.184 ± 1.209
|
Sound Speed [km/s]
|
70.44 ± 1.19
|
58.63 ± 1.32
|
Alfven Speed [km/s]
|
41.50 ± 2.08
|
41.76 ± 0.28
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.641 ± 0.065 |
0.311 ± 0.068 |
0.702 ± 0.554 |
44.60 ± 5.25 |
154.12 ± 5.59 |
| VC |
-0.961 ± 0.015 |
0.032 ± 0.072 |
0.275 ± 0.268 |
15.99 ± 3.15 |
178.11 ± 4.27 |
| MX1 |
-0.947 ± 0.016 |
0.167 ± 0.068 |
0.274 ± 0.267 |
15.90 ± 2.28 |
170.02 ± 4.11 |
| MX2 |
-0.999 ± 0.007 |
0.043 ± 0.123 |
-0.019 ± 0.019 |
-1.07 ± 15.06 |
177.52 ± 7.05 |
| MX3 |
-0.963 ± 0.014 |
0.148 ± 0.065 |
0.228 ± 0.224 |
13.15 ± 2.31 |
171.28 ± 3.89 |
| RH08 |
-0.999 ± 0.001 |
0.044 ± 0.014 |
-0.028 ± 0.028 |
-1.60 ± 0.87 |
177.49 ± 0.82 |
| RH09 |
-0.995 ± 0.007 |
0.096 ± 0.068 |
0.006 ± 0.006 |
0.32 ± 4.05 |
174.48 ± 3.94 |
| RH10 |
-0.997 ± 0.005 |
0.079 ± 0.069 |
0.006 ± 0.006 |
0.32 ± 4.05 |
175.49 ± 3.94 |
| Average |
-0.938 |
0.115 |
0.180 |
10.952 |
172.314 |
| Median |
-0.963 |
0.096 |
0.228 |
13.154 |
175.487 |
| Deviation |
0.122 |
0.093 |
0.250 |
15.653 |
7.925 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
51.1 ± 7.3 |
235.9 ± 1.1 |
0.47 ± 0.02 |
| VC |
65.5 ± 4.6 |
380.7 ± 1.1 |
0.47 ± 0.02 |
| MX1 |
57.8 ± 4.6 |
375.0 ± 0.9 |
0.47 ± 0.02 |
| MX2 |
67.1 ± 4.5 |
405.3 ± 0.9 |
0.47 ± 0.02 |
| MX3 |
59.2 ± 4.5 |
382.6 ± 0.9 |
0.47 ± 0.02 |
| RH08 |
67.1 ± 4.5 |
405.5 ± 0.9 |
0.47 ± 0.02 |
| RH09 |
63.9 ± 4.4 |
402.7 ± 0.8 |
0.47 ± 0.02 |
| RH10 |
64.8 ± 4.4 |
403.4 ± 3.3 |
0.47 ± 0.02 |
| Average |
62.1 |
373.9 |
0.47 |
| Median |
64.8 |
402.7 |
0.47 |
| Deviation |
5.6 |
57.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-29.6 ± 1.3 |
23.4 ± 1.0 |
26.1 ± 1.3 |
78.3 ± 1.5 |
-1.26 ± 0.09 |
-0.38 ± 0.02 |
| VC |
-38.4 ± 1.9 |
15.1 ± 0.6 |
17.2 ± 0.9 |
80.4 ± 1.6 |
-2.55 ± 0.11 |
-0.48 ± 0.02 |
| MX1 |
-37.7 ± 1.6 |
19.6 ± 0.8 |
22.1 ± 1.1 |
79.4 ± 1.5 |
-1.93 ± 0.08 |
-0.48 ± 0.02 |
| MX2 |
-38.1 ± 2.2 |
14.1 ± 0.6 |
16.2 ± 0.8 |
80.5 ± 1.6 |
-2.70 ± 0.10 |
-0.47 ± 0.02 |
| MX3 |
-38.1 ± 1.7 |
18.8 ± 0.8 |
21.3 ± 1.1 |
79.6 ± 1.5 |
-2.03 ± 0.08 |
-0.48 ± 0.02 |
| RH8 |
-38.0 ± 2.2 |
14.1 ± 0.6 |
16.1 ± 0.8 |
80.5 ± 1.6 |
-2.70 ± 0.10 |
-0.47 ± 0.02 |
| RH9 |
-38.3 ± 2.0 |
16.1 ± 0.6 |
18.3 ± 0.9 |
80.2 ± 1.5 |
-2.39 ± 0.08 |
-0.48 ± 0.02 |
| RH10 |
-38.4 ± 2.1 |
15.5 ± 0.6 |
17.6 ± 0.9 |
80.3 ± 1.6 |
-2.48 ± 0.09 |
-0.48 ± 0.02 |
| Average |
-37.1 |
17.1 |
19.4 |
79.9 |
-2.3 |
-0.5 |
| Median |
-38.1 |
16.1 |
18.3 |
80.3 |
-2.4 |
-0.5 |
| Deviation |
3.0 |
3.3 |
3.5 |
0.8 |
0.5 |
0.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-65.2 ± 0.5 |
22.5 ± 0.2 |
26.2 ± 0.2 |
68.4 ± 1.1 |
-2.90 ± 0.04 |
-0.95 ± 0.02 |
| VC |
-81.9 ± 1.4 |
14.4 ± 0.1 |
17.3 ± 0.1 |
70.5 ± 1.1 |
-5.70 ± 0.13 |
-1.16 ± 0.04 |
| MX1 |
-80.9 ± 1.0 |
18.7 ± 0.1 |
22.2 ± 0.2 |
69.5 ± 1.1 |
-4.31 ± 0.08 |
-1.16 ± 0.03 |
| MX2 |
-79.8 ± 1.3 |
13.5 ± 0.1 |
16.3 ± 0.1 |
70.7 ± 1.1 |
-5.91 ± 0.14 |
-1.13 ± 0.03 |
| MX3 |
-81.3 ± 1.1 |
18.0 ± 0.1 |
21.4 ± 0.1 |
69.7 ± 1.1 |
-4.52 ± 0.09 |
-1.17 ± 0.03 |
| RH8 |
-79.5 ± 1.3 |
13.4 ± 0.1 |
16.2 ± 0.1 |
70.7 ± 1.1 |
-5.92 ± 0.14 |
-1.12 ± 0.03 |
| RH9 |
-80.2 ± 1.2 |
15.3 ± 0.1 |
18.4 ± 0.1 |
70.3 ± 1.1 |
-5.23 ± 0.11 |
-1.14 ± 0.03 |
| RH10 |
-80.3 ± 1.2 |
14.8 ± 0.1 |
17.8 ± 0.1 |
70.5 ± 1.1 |
-5.44 ± 0.12 |
-1.14 ± 0.03 |
| Average |
-78.6 |
16.3 |
19.5 |
70.0 |
-5.0 |
-1.1 |
| Median |
-80.2 |
15.3 |
18.4 |
70.5 |
-5.2 |
-1.1 |
| Deviation |
5.5 |
3.2 |
3.5 |
0.8 |
1.0 |
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 13:39:38 2022
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
