Database: Wind Shock Analysis
Event ID: 20220402004
Observation time: 02/09/2022 40.83668 2004 [UT]
|
|
General
Information (About, Top)
| Year |
2022 |
| Fractional day of year |
40.836684 |
| Arrival time of shock [seconds of day] |
72289.5 ± 30.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
251.988 |
| Y GSE location of spacecraft [Re] |
-50.543 |
| Z GSE location of spacecraft [Re] |
11.798 |
| Upstream plasma points selected for analysis |
0006 |
| Upstream field points selected for analysis |
0217 |
| Downstream plasma points selected for analysis |
0005
|
| Downstream field points selected for analysis |
0172 |
| Minimum chisq/dof for RH8,RH9,RH10 |
10.20, 15.26, 23.09 |
Event added to database
|
Fri Aug 12 05:54:12 2022
|
Event last processed
|
Fri Aug 12 08:25:26 2022
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
56.255 ± 6.176
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-367.0 ± 2.5 |
-409.4 ± 6.8 |
| Vy GSE [km/s] |
-17.7 ± 2.0 |
2.0 ± 1.6 |
| Vz GSE [km/s] |
-5.9 ± 3.6 |
13.8 ± 9.2 |
| Wi [km/s] |
23.4 ± 1.6 |
28.2 ± 2.2 |
| We [km/s] |
740.7 ± 49.1 |
890.9 ± 68.1 |
| Ni [n/cc] |
3.4 ± 0.2 |
5.7 ± 0.3 |
| Bx GSE [nT] |
-0.5 ± 0.3 |
-0.6 ± 0.7 |
| By GSE [nT] |
-4.0 ± 0.1 |
-6.0 ± 0.2 |
| Bz GSE [nT] |
1.2 ± 0.3 |
2.7 ± 0.5 |
Plasma Beta
|
0.226 ± 0.243
|
0.215 ± 0.202
|
Sound Speed [km/s]
|
30.24 ± 2.00
|
36.37 ± 2.78
|
Alfven Speed [km/s]
|
49.79 ± 2.57
|
60.92 ± 1.93
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.968 ± 0.172 |
-0.154 ± 0.824 |
-0.198 ± 0.195 |
-11.39 ± 32.42 |
189.06 ± 48.76 |
| VC |
-0.832 ± 0.074 |
0.394 ± 0.080 |
0.390 ± 0.369 |
22.95 ± 10.62 |
154.64 ± 5.06 |
| MX1 |
-0.840 ± 0.093 |
0.374 ± 0.151 |
0.393 ± 0.371 |
23.11 ± 10.55 |
155.98 ± 10.11 |
| MX2 |
-0.833 ± 0.093 |
0.382 ± 0.140 |
0.400 ± 0.377 |
23.58 ± 10.78 |
155.38 ± 9.35 |
| MX3 |
-0.825 ± 0.092 |
0.391 ± 0.128 |
0.409 ± 0.385 |
24.15 ± 11.05 |
154.63 ± 8.57 |
| RH08 |
-0.914 ± 0.011 |
0.220 ± 0.024 |
0.341 ± 0.327 |
19.92 ± 1.69 |
166.46 ± 1.49 |
| RH09 |
-0.179 ± 0.070 |
0.542 ± 0.054 |
0.821 ± 0.550 |
55.21 ± 3.62 |
108.30 ± 7.23 |
| RH10 |
-0.223 ± 0.068 |
0.542 ± 0.058 |
0.810 ± 0.554 |
54.10 ± 3.96 |
112.31 ± 6.84 |
| Average |
-0.702 |
0.336 |
0.421 |
26.454 |
149.596 |
| Median |
-0.832 |
0.391 |
0.400 |
23.579 |
155.381 |
| Deviation |
0.313 |
0.223 |
0.317 |
21.055 |
26.891 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
78.1 ± 4.8 |
441.4 ± 4.3 |
1.71 ± 0.19 |
| VC |
81.0 ± 2.2 |
421.5 ± 3.3 |
1.71 ± 0.19 |
| MX1 |
82.2 ± 2.3 |
424.8 ± 3.3 |
1.71 ± 0.19 |
| MX2 |
81.9 ± 2.2 |
422.2 ± 3.3 |
1.71 ± 0.19 |
| MX3 |
81.5 ± 2.2 |
419.0 ± 3.3 |
1.71 ± 0.19 |
| RH08 |
89.7 ± 2.7 |
454.1 ± 3.5 |
1.71 ± 0.19 |
| RH09 |
75.7 ± 2.6 |
136.4 ± 2.9 |
1.71 ± 0.19 |
| RH10 |
75.8 ± 2.4 |
156.2 ± 15.2 |
1.71 ± 0.19 |
| Average |
80.8 |
359.5 |
1.71 |
| Median |
81.5 |
422.2 |
1.71 |
| Deviation |
4.5 |
132.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
82.2 ± 2.9 |
5.3 ± 0.2 |
10.2 ± 0.5 |
58.1 ± 1.6 |
15.47 ± 1.12 |
1.42 ± 0.05 |
| VC |
125.4 ± 2.0 |
4.0 ± 0.2 |
7.7 ± 0.4 |
58.2 ± 1.6 |
31.24 ± 1.47 |
2.16 ± 0.05 |
| MX1 |
125.4 ± 2.0 |
3.5 ± 0.1 |
6.7 ± 0.3 |
58.2 ± 1.6 |
36.06 ± 1.69 |
2.16 ± 0.05 |
| MX2 |
125.5 ± 2.0 |
3.6 ± 0.1 |
7.0 ± 0.4 |
58.2 ± 1.6 |
34.64 ± 1.62 |
2.16 ± 0.05 |
| MX3 |
125.7 ± 2.0 |
3.8 ± 0.2 |
7.3 ± 0.4 |
58.2 ± 1.6 |
33.04 ± 1.53 |
2.16 ± 0.05 |
| RH8 |
124.5 ± 1.9 |
0.1 ± 0.0 |
0.2 ± 0.0 |
58.3 ± 1.6 |
1088.41 ± 52.77 |
2.14 ± 0.05 |
| RH9 |
85.1 ± 2.9 |
6.4 ± 0.3 |
12.3 ± 0.6 |
58.0 ± 1.6 |
13.31 ± 0.41 |
1.47 ± 0.06 |
| RH10 |
88.9 ± 2.8 |
6.4 ± 0.3 |
12.2 ± 0.6 |
58.0 ± 1.6 |
13.99 ± 0.44 |
1.53 ± 0.06 |
| Average |
110.3 |
4.1 |
8.0 |
58.1 |
158.3 |
1.9 |
| Median |
125.4 |
4.0 |
7.7 |
58.2 |
33.0 |
2.2 |
| Deviation |
20.7 |
2.0 |
3.9 |
0.1 |
376.0 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
48.1 ± 7.8 |
6.4 ± 0.4 |
12.5 ± 0.4 |
70.7 ± 2.3 |
7.50 ± 1.33 |
0.68 ± 0.12 |
| VC |
74.7 ± 5.0 |
4.9 ± 0.3 |
9.5 ± 0.3 |
70.8 ± 2.3 |
15.38 ± 0.85 |
1.06 ± 0.07 |
| MX1 |
74.7 ± 5.1 |
4.2 ± 0.2 |
8.2 ± 0.3 |
70.9 ± 2.3 |
17.75 ± 0.99 |
1.05 ± 0.07 |
| MX2 |
74.9 ± 5.0 |
4.4 ± 0.3 |
8.6 ± 0.3 |
70.8 ± 2.3 |
17.06 ± 0.93 |
1.06 ± 0.07 |
| MX3 |
75.0 ± 5.0 |
4.6 ± 0.3 |
9.0 ± 0.3 |
70.8 ± 2.3 |
16.29 ± 0.87 |
1.06 ± 0.07 |
| RH8 |
74.7 ± 5.4 |
0.1 ± 0.0 |
0.3 ± 0.0 |
71.0 ± 2.3 |
539.79 ± 35.40 |
1.05 ± 0.08 |
| RH9 |
50.6 ± 7.5 |
7.7 ± 0.5 |
15.0 ± 0.5 |
70.6 ± 2.3 |
6.52 ± 0.67 |
0.72 ± 0.08 |
| RH10 |
52.8 ± 7.2 |
7.7 ± 0.4 |
14.9 ± 0.5 |
70.6 ± 2.3 |
6.85 ± 0.63 |
0.75 ± 0.08 |
| Average |
65.7 |
5.0 |
9.8 |
70.8 |
78.4 |
0.9 |
| Median |
74.7 |
4.9 |
9.5 |
70.8 |
16.3 |
1.1 |
| Deviation |
12.6 |
2.4 |
4.7 |
0.2 |
186.5 |
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 Aug 12 08:39:40 2022
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
