Database: dscovr_data
Event ID: 20172492307
Observation time: 09/06/2017 249.96388 2307 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
249.963877 |
| Arrival time of shock [seconds of day] |
83279.0 ± 120.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
238.459 |
| Y GSE location of spacecraft [Re] |
-37.952 |
| Z GSE location of spacecraft [Re] |
-10.893 |
| Upstream plasma points selected for analysis |
0010 |
| Upstream field points selected for analysis |
0010 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0008 |
| Minimum chisq/dof for RH8,RH9,RH10 |
1.15, 1.16, 1.18 |
Event added to database
|
Wed Oct 25 11:34:32 2017
|
Event last processed
|
Wed Oct 25 12:03:44 2017
|
Method selected
|
MX3
|
Propagation delay to Earth [minutes]
|
3.697 ± 160.746
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-422.4 ± 13.2 |
-559.3 ± 13.7 |
| Vy GSE [km/s] |
-4.9 ± 5.0 |
-17.6 ± 12.5 |
| Vz GSE [km/s] |
12.8 ± 9.3 |
47.1 ± 12.5 |
| Wi [km/s] |
40.9 ± 13.7 |
62.0 ± 10.2 |
| We [km/s] |
1294.1 ± 432.2 |
1961.3 ± 323.1 |
| Ni [n/cc] |
5.2 ± 1.6 |
6.9 ± 1.7 |
| Bx GSE [nT] |
0.7 ± 0.8 |
3.0 ± 4.2 |
| By GSE [nT] |
-1.9 ± 0.7 |
-6.7 ± 3.1 |
| Bz GSE [nT] |
1.0 ± 0.9 |
4.9 ± 4.0 |
Plasma Beta
|
3.125 ± 2.186
|
0.562 ± 0.412
|
Sound Speed [km/s]
|
52.83 ± 17.64
|
80.07 ± 13.19
|
Alfven Speed [km/s]
|
26.01 ± 2.76
|
88.64 ± 10.97
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.945 ± 0.260 |
-0.224 ± 0.928 |
0.239 ± 0.235 |
13.84 ± 34.10 |
193.36 ± 56.22 |
| VC |
-0.968 ± 0.022 |
-0.090 ± 0.090 |
0.236 ± 0.232 |
13.65 ± 5.02 |
185.34 ± 5.32 |
| MX1 |
-0.935 ± 0.213 |
-0.251 ± 0.718 |
0.252 ± 0.247 |
14.60 ± 21.53 |
195.03 ± 44.00 |
| MX2 |
-0.943 ± 0.177 |
-0.293 ± 0.553 |
0.156 ± 0.154 |
8.96 ± 16.37 |
197.25 ± 33.60 |
| MX3 |
-0.944 ± 0.174 |
-0.306 ± 0.526 |
0.125 ± 0.124 |
7.16 ± 18.02 |
197.94 ± 31.90 |
| RH08 |
-0.159 ± 0.020 |
-0.675 ± 0.031 |
-0.721 ± 0.558 |
-46.11 ± 2.48 |
256.71 ± 1.59 |
| RH09 |
-0.159 ± 0.023 |
-0.675 ± 0.035 |
-0.721 ± 0.558 |
-46.11 ± 2.87 |
256.71 ± 1.82 |
| RH10 |
-0.159 ± 0.028 |
-0.675 ± 0.043 |
-0.721 ± 0.558 |
-46.11 ± 3.47 |
256.71 ± 2.25 |
| Average |
-0.652 |
-0.399 |
-0.144 |
-10.013 |
217.382 |
| Median |
-0.935 |
-0.293 |
0.156 |
8.959 |
197.943 |
| Deviation |
0.408 |
0.238 |
0.479 |
29.998 |
32.793 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
88.6 ± 21.6 |
782.0 ± 3412.5 |
1.56 ± 0.44 |
| VC |
82.2 ± 22.5 |
786.9 ± 3466.0 |
1.56 ± 0.44 |
| MX1 |
89.7 ± 21.5 |
776.3 ± 3393.7 |
1.56 ± 0.44 |
| MX2 |
89.8 ± 20.5 |
778.0 ± 3347.9 |
1.56 ± 0.44 |
| MX3 |
89.6 ± 20.2 |
776.7 ± 3325.3 |
1.56 ± 0.44 |
| RH08 |
79.7 ± 20.9 |
67.1 ± 46.4 |
1.56 ± 0.44 |
| RH09 |
79.7 ± 20.9 |
67.1 ± 46.4 |
1.56 ± 0.44 |
| RH10 |
79.7 ± 20.9 |
67.1 ± 412.2 |
1.56 ± 0.44 |
| Average |
84.9 |
512.6 |
1.56 |
| Median |
88.6 |
776.7 |
1.56 |
| Deviation |
4.9 |
369.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
378.8 ± 14.3 |
0.5 ± 0.0 |
0.6 ± 0.1 |
59.6 ± 15.0 |
707.33 ± 38.70 |
6.74 ± 1.71 |
| VC |
374.7 ± 14.5 |
3.1 ± 0.2 |
3.5 ± 0.4 |
59.5 ± 15.0 |
122.23 ± 6.77 |
6.68 ± 1.71 |
| MX1 |
377.1 ± 14.3 |
0.1 ± 0.0 |
0.1 ± 0.0 |
59.6 ± 15.0 |
3448.57 ± 188.44 |
6.71 ± 1.71 |
| MX2 |
376.1 ± 13.8 |
0.1 ± 0.0 |
0.1 ± 0.0 |
59.6 ± 15.0 |
4157.61 ± 225.40 |
6.69 ± 1.69 |
| MX3 |
374.9 ± 13.6 |
0.2 ± 0.0 |
0.2 ± 0.0 |
59.6 ± 15.0 |
2502.41 ± 135.36 |
6.67 ± 1.69 |
| RH8 |
5.7 ± 6.0 |
4.0 ± 0.2 |
4.6 ± 0.5 |
59.5 ± 15.1 |
1.43 ± 1.50 |
0.09 ± 0.10 |
| RH9 |
5.7 ± 6.0 |
4.0 ± 0.2 |
4.6 ± 0.5 |
59.5 ± 15.1 |
1.43 ± 1.50 |
0.09 ± 0.10 |
| RH10 |
5.7 ± 6.0 |
4.0 ± 0.2 |
4.6 ± 0.5 |
59.5 ± 15.1 |
1.43 ± 1.50 |
0.09 ± 0.10 |
| Average |
237.3 |
2.0 |
2.3 |
59.5 |
1367.8 |
4.2 |
| Median |
374.9 |
3.1 |
3.5 |
59.6 |
707.3 |
6.7 |
| Deviation |
191.8 |
1.9 |
2.2 |
0.1 |
1731.6 |
3.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
238.4 ± 14.3 |
1.4 ± 0.1 |
2.1 ± 0.3 |
120.4 ± 5.6 |
172.79 ± 11.92 |
1.98 ± 0.15 |
| VC |
233.0 ± 14.7 |
7.9 ± 0.5 |
12.1 ± 1.5 |
120.2 ± 5.6 |
29.48 ± 2.02 |
1.94 ± 0.14 |
| MX1 |
237.3 ± 14.2 |
0.3 ± 0.0 |
0.4 ± 0.1 |
120.4 ± 5.6 |
842.29 ± 58.36 |
1.97 ± 0.15 |
| MX2 |
237.9 ± 13.8 |
0.2 ± 0.0 |
0.4 ± 0.0 |
120.4 ± 5.6 |
1020.82 ± 71.55 |
1.98 ± 0.15 |
| MX3 |
237.5 ± 13.6 |
0.4 ± 0.0 |
0.6 ± 0.1 |
120.4 ± 5.6 |
615.44 ± 43.37 |
1.98 ± 0.15 |
| RH8 |
0.1 ± 14.5 |
10.4 ± 0.7 |
15.8 ± 2.0 |
120.0 ± 5.6 |
0.04 ± 1.43 |
0.00 ± 0.12 |
| RH9 |
0.1 ± 14.5 |
10.4 ± 0.7 |
15.8 ± 2.0 |
120.0 ± 5.6 |
0.04 ± 1.43 |
0.00 ± 0.12 |
| RH10 |
0.1 ± 14.5 |
10.4 ± 0.7 |
15.8 ± 2.0 |
120.0 ± 5.6 |
0.04 ± 1.43 |
0.00 ± 0.12 |
| Average |
148.0 |
5.2 |
7.9 |
120.2 |
335.1 |
1.2 |
| Median |
237.3 |
7.9 |
12.1 |
120.4 |
172.8 |
2.0 |
| Deviation |
122.5 |
5.0 |
7.6 |
0.2 |
424.7 |
1.0 |
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)
| 
