Database: dscovr_data
Event ID: 20171892303
Observation time: 07/08/2017 189.96111 2303 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
189.961111 |
| Arrival time of shock [seconds of day] |
83040.0 ± 70.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
243.689 |
| Y GSE location of spacecraft [Re] |
32.045 |
| Z GSE location of spacecraft [Re] |
-21.845 |
| Upstream plasma points selected for analysis |
0009 |
| Upstream field points selected for analysis |
0009 |
| Downstream plasma points selected for analysis |
0004
|
| Downstream field points selected for analysis |
0004 |
| Minimum chisq/dof for RH8,RH9,RH10 |
11.73, 27.55, 28.67 |
Event added to database
|
Wed Oct 25 10:19:41 2017
|
Event last processed
|
Wed Oct 25 11:53:31 2017
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
67.474 ± 1.671
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-315.2 ± 0.5 |
-343.8 ± 1.2 |
| Vy GSE [km/s] |
-24.7 ± 0.6 |
-43.9 ± 0.9 |
| Vz GSE [km/s] |
-11.3 ± 1.1 |
-20.8 ± 0.5 |
| Wi [km/s] |
15.9 ± 0.2 |
21.9 ± 0.3 |
| We [km/s] |
503.7 ± 5.1 |
691.6 ± 9.5 |
| Ni [n/cc] |
8.4 ± 0.3 |
18.1 ± 0.2 |
| Bx GSE [nT] |
2.7 ± 0.1 |
3.5 ± 0.2 |
| By GSE [nT] |
-2.8 ± 0.1 |
-5.7 ± 0.2 |
| Bz GSE [nT] |
0.3 ± 0.2 |
-0.8 ± 0.6 |
Plasma Beta
|
0.302 ± 0.302
|
0.403 ± 0.404
|
Sound Speed [km/s]
|
20.56 ± 0.21
|
28.24 ± 0.39
|
Alfven Speed [km/s]
|
29.02 ± 0.68
|
34.46 ± 0.87
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.873 ± 0.090 |
-0.026 ± 0.166 |
-0.487 ± 0.444 |
-29.15 ± 10.59 |
181.69 ± 10.89 |
| VC |
-0.801 ± 0.019 |
-0.537 ± 0.027 |
-0.265 ± 0.259 |
-15.38 ± 1.54 |
213.81 ± 1.93 |
| MX1 |
-0.953 ± 0.019 |
-0.169 ± 0.097 |
-0.251 ± 0.246 |
-14.53 ± 1.78 |
190.08 ± 5.83 |
| MX2 |
-0.959 ± 0.020 |
-0.192 ± 0.087 |
-0.206 ± 0.203 |
-11.92 ± 2.75 |
191.30 ± 5.21 |
| MX3 |
-0.964 ± 0.021 |
-0.216 ± 0.078 |
-0.156 ± 0.155 |
-8.97 ± 4.39 |
192.62 ± 4.64 |
| RH08 |
-0.976 ± 0.003 |
-0.181 ± 0.013 |
-0.117 ± 0.117 |
-6.74 ± 0.64 |
190.53 ± 0.78 |
| RH09 |
-1.000 ± 0.002 |
-0.026 ± 0.061 |
-0.006 ± 0.006 |
-0.32 ± 3.95 |
181.50 ± 3.50 |
| RH10 |
-1.000 ± 0.002 |
-0.026 ± 0.062 |
-0.006 ± 0.006 |
-0.32 ± 3.99 |
181.50 ± 3.56 |
| Average |
-0.941 |
-0.172 |
-0.187 |
-10.915 |
190.378 |
| Median |
-0.959 |
-0.169 |
-0.156 |
-8.965 |
190.529 |
| Deviation |
0.069 |
0.169 |
0.157 |
9.353 |
10.610 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
51.5 ± 2.7 |
337.6 ± 0.4 |
2.13 ± 0.05 |
| VC |
78.9 ± 2.3 |
335.8 ± 0.4 |
2.13 ± 0.05 |
| MX1 |
56.0 ± 2.3 |
368.8 ± 0.4 |
2.13 ± 0.05 |
| MX2 |
57.0 ± 2.2 |
371.2 ± 0.4 |
2.13 ± 0.05 |
| MX3 |
58.2 ± 2.1 |
372.8 ± 0.4 |
2.13 ± 0.05 |
| RH08 |
56.1 ± 2.1 |
374.2 ± 0.4 |
2.13 ± 0.05 |
| RH09 |
47.4 ± 1.9 |
370.2 ± 0.4 |
2.13 ± 0.05 |
| RH10 |
47.4 ± 1.9 |
370.2 ± 2.4 |
2.13 ± 0.05 |
| Average |
56.6 |
362.6 |
2.13 |
| Median |
56.1 |
370.2 |
2.13 |
| Deviation |
10.0 |
16.1 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
56.3 ± 0.9 |
11.0 ± 0.1 |
18.1 ± 0.4 |
33.8 ± 0.5 |
5.14 ± 0.07 |
1.67 ± 0.04 |
| VC |
67.1 ± 0.9 |
3.2 ± 0.0 |
5.6 ± 0.1 |
35.4 ± 0.5 |
20.71 ± 0.29 |
1.89 ± 0.04 |
| MX1 |
61.4 ± 0.7 |
9.8 ± 0.1 |
16.2 ± 0.4 |
34.2 ± 0.5 |
6.30 ± 0.08 |
1.80 ± 0.04 |
| MX2 |
61.8 ± 0.7 |
9.5 ± 0.1 |
15.8 ± 0.4 |
34.3 ± 0.5 |
6.51 ± 0.08 |
1.80 ± 0.04 |
| MX3 |
61.9 ± 0.7 |
9.2 ± 0.1 |
15.3 ± 0.4 |
34.4 ± 0.5 |
6.77 ± 0.08 |
1.80 ± 0.04 |
| RH8 |
60.7 ± 0.6 |
9.7 ± 0.1 |
16.2 ± 0.4 |
34.2 ± 0.5 |
6.24 ± 0.07 |
1.77 ± 0.04 |
| RH9 |
54.4 ± 0.5 |
12.1 ± 0.1 |
19.7 ± 0.5 |
33.5 ± 0.5 |
4.51 ± 0.04 |
1.63 ± 0.03 |
| RH10 |
54.4 ± 0.5 |
12.1 ± 0.1 |
19.7 ± 0.5 |
33.5 ± 0.5 |
4.51 ± 0.04 |
1.63 ± 0.03 |
| Average |
59.8 |
9.6 |
15.8 |
34.2 |
7.6 |
1.7 |
| Median |
61.4 |
9.8 |
16.2 |
34.2 |
6.3 |
1.8 |
| Deviation |
4.4 |
2.8 |
4.5 |
0.6 |
5.4 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
26.3 ± 1.1 |
14.3 ± 0.2 |
21.4 ± 0.5 |
42.2 ± 0.8 |
1.83 ± 0.10 |
0.62 ± 0.04 |
| VC |
31.4 ± 0.8 |
4.2 ± 0.1 |
6.6 ± 0.2 |
44.4 ± 0.8 |
7.44 ± 0.27 |
0.71 ± 0.03 |
| MX1 |
28.5 ± 1.1 |
12.7 ± 0.2 |
19.3 ± 0.5 |
42.7 ± 0.8 |
2.24 ± 0.11 |
0.67 ± 0.04 |
| MX2 |
28.7 ± 1.1 |
12.4 ± 0.2 |
18.8 ± 0.5 |
42.8 ± 0.8 |
2.32 ± 0.12 |
0.67 ± 0.04 |
| MX3 |
28.7 ± 1.1 |
12.0 ± 0.2 |
18.2 ± 0.5 |
42.9 ± 0.8 |
2.41 ± 0.12 |
0.67 ± 0.03 |
| RH8 |
28.1 ± 1.1 |
12.7 ± 0.2 |
19.2 ± 0.5 |
42.7 ± 0.8 |
2.22 ± 0.11 |
0.66 ± 0.04 |
| RH9 |
25.3 ± 1.2 |
15.8 ± 0.2 |
23.3 ± 0.6 |
41.6 ± 0.8 |
1.60 ± 0.10 |
0.61 ± 0.04 |
| RH10 |
25.3 ± 1.2 |
15.8 ± 0.2 |
23.3 ± 0.6 |
41.6 ± 0.8 |
1.60 ± 0.10 |
0.61 ± 0.04 |
| Average |
27.8 |
12.5 |
18.8 |
42.6 |
2.7 |
0.7 |
| Median |
28.5 |
12.7 |
19.3 |
42.7 |
2.2 |
0.7 |
| Deviation |
2.1 |
3.7 |
5.3 |
0.9 |
1.9 |
0.0 |
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)
| 
