Database: Wind Shock Analysis
Event ID: 20190832041
Observation time: 03/24/2019 83.86231 2041 [UT]
|
|
General
Information (About, Top)
| Year |
2019 |
| Fractional day of year |
83.862309 |
| Arrival time of shock [seconds of day] |
74503.5 ± 30.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
238.981 |
| Y GSE location of spacecraft [Re] |
-87.637 |
| Z GSE location of spacecraft [Re] |
9.076 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0228 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0256 |
| Minimum chisq/dof for RH8,RH9,RH10 |
5.82, 12.16, 12.74 |
Event added to database
|
Tue Dec 10 17:06:35 2019
|
Event last processed
|
Tue Dec 10 18:57:14 2019
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
66.461 ± 3.953
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-273.4 ± 0.6 |
-295.1 ± 2.3 |
| Vy GSE [km/s] |
-10.8 ± 0.8 |
-13.7 ± 3.6 |
| Vz GSE [km/s] |
-4.0 ± 0.7 |
6.3 ± 2.0 |
| Wi [km/s] |
12.5 ± 0.4 |
16.1 ± 0.3 |
| We [km/s] |
396.7 ± 11.1 |
508.1 ± 10.9 |
| Ni [n/cc] |
15.9 ± 0.7 |
29.0 ± 1.7 |
| Bx GSE [nT] |
-0.6 ± 0.1 |
-1.2 ± 0.2 |
| By GSE [nT] |
2.9 ± 0.1 |
5.0 ± 0.2 |
| Bz GSE [nT] |
0.0 ± 0.1 |
0.4 ± 0.2 |
Plasma Beta
|
0.616 ± 0.616
|
0.592 ± 0.608
|
Sound Speed [km/s]
|
16.20 ± 0.45
|
20.74 ± 0.45
|
Alfven Speed [km/s]
|
16.01 ± 0.43
|
20.90 ± 0.32
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.942 ± 0.247 |
-0.283 ± 0.617 |
0.179 ± 0.177 |
10.32 ± 54.68 |
196.69 ± 37.38 |
| VC |
-0.896 ± 0.048 |
-0.120 ± 0.142 |
0.427 ± 0.399 |
25.28 ± 5.97 |
187.62 ± 9.04 |
| MX1 |
-0.848 ± 0.054 |
-0.317 ± 0.100 |
0.424 ± 0.397 |
25.10 ± 5.61 |
200.50 ± 6.69 |
| MX2 |
-0.854 ± 0.055 |
-0.315 ± 0.100 |
0.413 ± 0.388 |
24.42 ± 5.99 |
200.26 ± 6.66 |
| MX3 |
-0.862 ± 0.058 |
-0.313 ± 0.102 |
0.399 ± 0.376 |
23.49 ± 6.93 |
199.94 ± 6.69 |
| RH08 |
-0.938 ± 0.005 |
-0.261 ± 0.008 |
0.229 ± 0.225 |
13.24 ± 1.20 |
195.54 ± 0.51 |
| RH09 |
-0.891 ± 0.031 |
-0.198 ± 0.041 |
-0.408 ± 0.384 |
-24.07 ± 4.20 |
192.53 ± 2.60 |
| RH10 |
-0.896 ± 0.031 |
-0.199 ± 0.048 |
-0.397 ± 0.374 |
-23.37 ± 4.30 |
192.53 ± 3.07 |
| Average |
-0.891 |
-0.251 |
0.158 |
9.303 |
195.703 |
| Median |
-0.891 |
-0.261 |
0.399 |
23.492 |
196.690 |
| Deviation |
0.036 |
0.072 |
0.359 |
21.155 |
4.600 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
85.8 ± 2.0 |
310.7 ± 0.5 |
1.80 ± 0.04 |
| VC |
85.5 ± 2.1 |
296.9 ± 0.6 |
1.80 ± 0.04 |
| MX1 |
82.9 ± 2.1 |
285.4 ± 0.6 |
1.80 ± 0.04 |
| MX2 |
83.0 ± 2.1 |
287.2 ± 0.6 |
1.80 ± 0.04 |
| MX3 |
83.3 ± 2.1 |
289.5 ± 0.6 |
1.80 ± 0.04 |
| RH08 |
87.0 ± 2.0 |
309.6 ± 0.5 |
1.80 ± 0.04 |
| RH09 |
89.4 ± 1.2 |
282.4 ± 0.5 |
1.80 ± 0.04 |
| RH10 |
89.5 ± 1.2 |
284.2 ± 4.0 |
1.80 ± 0.04 |
| Average |
85.8 |
293.2 |
1.80 |
| Median |
85.8 |
289.5 |
1.80 |
| Deviation |
2.7 |
11.3 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
50.7 ± 0.6 |
0.8 ± 0.0 |
1.2 ± 0.0 |
22.8 ± 0.4 |
60.63 ± 1.33 |
2.23 ± 0.05 |
| VC |
52.4 ± 0.6 |
0.9 ± 0.0 |
1.3 ± 0.0 |
22.8 ± 0.4 |
58.32 ± 1.40 |
2.30 ± 0.05 |
| MX1 |
51.8 ± 0.6 |
1.4 ± 0.0 |
2.0 ± 0.1 |
22.7 ± 0.4 |
36.65 ± 0.85 |
2.28 ± 0.05 |
| MX2 |
51.9 ± 0.6 |
1.4 ± 0.0 |
1.9 ± 0.1 |
22.7 ± 0.4 |
37.62 ± 0.87 |
2.28 ± 0.05 |
| MX3 |
52.0 ± 0.6 |
1.3 ± 0.0 |
1.9 ± 0.0 |
22.7 ± 0.4 |
38.94 ± 0.90 |
2.29 ± 0.05 |
| RH8 |
51.3 ± 0.6 |
0.6 ± 0.0 |
0.8 ± 0.0 |
22.8 ± 0.4 |
85.77 ± 1.91 |
2.25 ± 0.05 |
| RH9 |
35.0 ± 0.5 |
0.1 ± 0.0 |
0.2 ± 0.0 |
22.8 ± 0.4 |
317.04 ± 6.29 |
1.54 ± 0.03 |
| RH10 |
35.4 ± 0.5 |
0.1 ± 0.0 |
0.2 ± 0.0 |
22.8 ± 0.4 |
325.16 ± 6.45 |
1.55 ± 0.03 |
| Average |
47.6 |
0.8 |
1.2 |
22.8 |
120.0 |
2.1 |
| Median |
51.8 |
0.9 |
1.3 |
22.8 |
60.6 |
2.3 |
| Deviation |
7.6 |
0.5 |
0.7 |
0.0 |
125.2 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
27.6 ± 2.2 |
1.1 ± 0.0 |
1.5 ± 0.0 |
29.4 ± 0.1 |
25.48 ± 1.94 |
0.94 ± 0.07 |
| VC |
28.1 ± 1.7 |
1.2 ± 0.0 |
1.6 ± 0.0 |
29.4 ± 0.1 |
24.20 ± 1.35 |
0.96 ± 0.05 |
| MX1 |
28.1 ± 2.0 |
1.8 ± 0.0 |
2.6 ± 0.0 |
29.4 ± 0.1 |
15.35 ± 1.04 |
0.96 ± 0.07 |
| MX2 |
28.2 ± 2.0 |
1.8 ± 0.0 |
2.5 ± 0.0 |
29.4 ± 0.1 |
15.77 ± 1.06 |
0.96 ± 0.07 |
| MX3 |
28.2 ± 2.0 |
1.7 ± 0.0 |
2.4 ± 0.0 |
29.4 ± 0.1 |
16.34 ± 1.11 |
0.96 ± 0.07 |
| RH8 |
27.8 ± 2.1 |
0.8 ± 0.0 |
1.1 ± 0.0 |
29.4 ± 0.1 |
35.94 ± 2.60 |
0.95 ± 0.07 |
| RH9 |
19.3 ± 2.7 |
0.1 ± 0.0 |
0.2 ± 0.0 |
29.4 ± 0.1 |
135.10 ± 18.54 |
0.65 ± 0.09 |
| RH10 |
19.5 ± 2.7 |
0.1 ± 0.0 |
0.2 ± 0.0 |
29.4 ± 0.1 |
138.35 ± 18.74 |
0.66 ± 0.09 |
| Average |
25.8 |
1.1 |
1.5 |
29.4 |
50.8 |
0.9 |
| Median |
28.1 |
1.2 |
1.6 |
29.4 |
25.5 |
1.0 |
| Deviation |
4.0 |
0.7 |
1.0 |
0.0 |
53.5 |
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 Wed Jan 22 21:47:00 2020
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
