Database: dscovr_data
Event ID: 20171471445
Observation time: 05/27/2017 147.61528 1445 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
147.615278 |
| Arrival time of shock [seconds of day] |
53160.0 ± 60.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
227.422 |
| Y GSE location of spacecraft [Re] |
29.025 |
| Z GSE location of spacecraft [Re] |
15.303 |
| Upstream plasma points selected for analysis |
0013 |
| Upstream field points selected for analysis |
0013 |
| Downstream plasma points selected for analysis |
0012
|
| Downstream field points selected for analysis |
0012 |
| Minimum chisq/dof for RH8,RH9,RH10 |
1.64, 9.80, 9.87 |
Event added to database
|
Tue Oct 24 16:12:26 2017
|
Event last processed
|
Wed Oct 25 11:48:48 2017
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
64.350 ± 0.247
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-300.6 ± 0.7 |
-357.4 ± 3.9 |
| Vy GSE [km/s] |
-15.0 ± 2.8 |
2.8 ± 5.2 |
| Vz GSE [km/s] |
-7.7 ± 2.3 |
10.0 ± 6.3 |
| Wi [km/s] |
13.6 ± 0.2 |
31.8 ± 3.3 |
| We [km/s] |
430.5 ± 7.8 |
1005.8 ± 103.9 |
| Ni [n/cc] |
5.7 ± 0.3 |
30.4 ± 1.4 |
| Bx GSE [nT] |
-1.3 ± 0.3 |
-2.3 ± 1.9 |
| By GSE [nT] |
-2.1 ± 0.4 |
-4.6 ± 4.2 |
| Bz GSE [nT] |
0.7 ± 0.2 |
-4.5 ± 1.9 |
Plasma Beta
|
0.329 ± 0.331
|
1.008 ± 0.981
|
Sound Speed [km/s]
|
17.57 ± 0.32
|
41.06 ± 4.24
|
Alfven Speed [km/s]
|
23.82 ± 1.00
|
32.87 ± 4.21
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.628 ± 0.390 |
-0.676 ± 0.374 |
0.385 ± 0.365 |
22.65 ± 37.08 |
227.14 ± 29.74 |
| VC |
-0.915 ± 0.041 |
0.289 ± 0.097 |
0.282 ± 0.274 |
16.39 ± 5.93 |
162.44 ± 6.02 |
| MX1 |
-0.919 ± 0.102 |
0.287 ± 0.302 |
0.270 ± 0.264 |
15.69 ± 8.71 |
162.63 ± 18.83 |
| MX2 |
-0.951 ± 0.046 |
0.237 ± 0.138 |
0.200 ± 0.198 |
11.56 ± 9.20 |
166.01 ± 8.28 |
| MX3 |
-0.946 ± 0.048 |
0.259 ± 0.141 |
0.194 ± 0.192 |
11.21 ± 8.72 |
164.71 ± 8.54 |
| RH08 |
-0.995 ± 0.002 |
0.096 ± 0.018 |
0.028 ± 0.028 |
1.60 ± 0.72 |
174.48 ± 1.05 |
| RH09 |
-0.976 ± 0.015 |
0.181 ± 0.069 |
0.117 ± 0.117 |
6.74 ± 4.01 |
169.47 ± 4.07 |
| RH10 |
-0.976 ± 0.015 |
0.181 ± 0.069 |
0.117 ± 0.117 |
6.74 ± 4.01 |
169.47 ± 4.07 |
| Average |
-0.913 |
0.107 |
0.199 |
11.571 |
174.546 |
| Median |
-0.946 |
0.237 |
0.200 |
11.560 |
169.471 |
| Deviation |
0.119 |
0.323 |
0.113 |
6.646 |
21.631 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
15.0 ± 7.1 |
230.4 ± 0.6 |
5.34 ± 0.38 |
| VC |
72.5 ± 9.8 |
344.9 ± 0.3 |
5.34 ± 0.38 |
| MX1 |
72.4 ± 9.8 |
346.2 ± 0.3 |
5.34 ± 0.38 |
| MX2 |
70.1 ± 9.6 |
357.1 ± 0.3 |
5.34 ± 0.38 |
| MX3 |
71.4 ± 9.6 |
355.5 ± 0.3 |
5.34 ± 0.38 |
| RH08 |
64.4 ± 8.7 |
370.8 ± 0.3 |
5.34 ± 0.38 |
| RH09 |
67.8 ± 9.3 |
365.5 ± 0.3 |
5.34 ± 0.38 |
| RH10 |
67.8 ± 9.3 |
365.5 ± 3.7 |
5.34 ± 0.38 |
| Average |
62.7 |
342.0 |
5.34 |
| Median |
70.1 |
357.1 |
5.34 |
| Deviation |
19.4 |
46.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
34.5 ± 1.3 |
16.4 ± 0.2 |
23.0 ± 1.0 |
24.6 ± 0.9 |
2.11 ± 0.09 |
1.40 ± 0.09 |
| VC |
76.5 ± 1.6 |
4.3 ± 0.1 |
7.2 ± 0.3 |
29.3 ± 0.8 |
17.79 ± 0.48 |
2.61 ± 0.08 |
| MX1 |
76.5 ± 1.6 |
4.3 ± 0.1 |
7.2 ± 0.3 |
29.3 ± 0.8 |
17.75 ± 0.48 |
2.61 ± 0.08 |
| MX2 |
76.5 ± 1.4 |
4.9 ± 0.1 |
8.1 ± 0.3 |
29.2 ± 0.8 |
15.66 ± 0.39 |
2.62 ± 0.07 |
| MX3 |
76.4 ± 1.4 |
4.6 ± 0.1 |
7.6 ± 0.3 |
29.3 ± 0.8 |
16.75 ± 0.42 |
2.61 ± 0.07 |
| RH8 |
73.4 ± 0.8 |
6.3 ± 0.1 |
10.3 ± 0.4 |
28.9 ± 0.8 |
11.73 ± 0.26 |
2.54 ± 0.07 |
| RH9 |
75.6 ± 1.1 |
5.4 ± 0.1 |
9.0 ± 0.4 |
29.1 ± 0.8 |
13.95 ± 0.32 |
2.60 ± 0.07 |
| RH10 |
75.6 ± 1.1 |
5.4 ± 0.1 |
9.0 ± 0.4 |
29.1 ± 0.8 |
13.95 ± 0.32 |
2.60 ± 0.07 |
| Average |
70.6 |
6.4 |
10.2 |
28.6 |
13.7 |
2.5 |
| Median |
76.4 |
5.4 |
9.0 |
29.2 |
15.7 |
2.6 |
| Deviation |
14.6 |
4.1 |
5.3 |
1.6 |
5.1 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
4.1 ± 6.2 |
29.7 ± 2.8 |
31.7 ± 4.1 |
43.6 ± 3.0 |
0.14 ± 0.22 |
0.09 ± 0.14 |
| VC |
14.4 ± 2.5 |
7.7 ± 0.6 |
9.9 ± 1.3 |
52.3 ± 3.2 |
1.87 ± 0.35 |
0.28 ± 0.05 |
| MX1 |
14.4 ± 2.5 |
7.7 ± 0.6 |
9.9 ± 1.3 |
52.2 ± 3.2 |
1.87 ± 0.35 |
0.28 ± 0.05 |
| MX2 |
14.7 ± 2.7 |
8.8 ± 0.6 |
11.2 ± 1.4 |
52.1 ± 3.2 |
1.68 ± 0.32 |
0.28 ± 0.05 |
| MX3 |
14.6 ± 2.6 |
8.2 ± 0.6 |
10.5 ± 1.3 |
52.2 ± 3.2 |
1.79 ± 0.33 |
0.28 ± 0.05 |
| RH8 |
14.7 ± 3.4 |
11.2 ± 0.8 |
14.2 ± 1.8 |
51.6 ± 3.1 |
1.31 ± 0.30 |
0.28 ± 0.07 |
| RH9 |
14.9 ± 2.9 |
9.7 ± 0.7 |
12.4 ± 1.6 |
51.9 ± 3.1 |
1.53 ± 0.31 |
0.29 ± 0.06 |
| RH10 |
14.9 ± 2.9 |
9.7 ± 0.7 |
12.4 ± 1.6 |
51.9 ± 3.1 |
1.53 ± 0.31 |
0.29 ± 0.06 |
| Average |
13.3 |
11.6 |
14.0 |
51.0 |
1.5 |
0.3 |
| Median |
14.7 |
9.7 |
12.4 |
52.1 |
1.7 |
0.3 |
| Deviation |
3.7 |
7.4 |
7.3 |
3.0 |
0.6 |
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 Mon Apr 13 08:55:21 2009
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
