Database: dscovr_data
Event ID: 20171821625
Observation time: 07/01/2017 182.68472 1625 [UT]
|
|
General
Information (About, Top)
| Year |
2017 |
| Fractional day of year |
182.684722 |
| Arrival time of shock [seconds of day] |
59160.0 ± 100.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
241.484 |
| Y GSE location of spacecraft [Re] |
38.177 |
| Z GSE location of spacecraft [Re] |
-16.577 |
| Upstream plasma points selected for analysis |
0010 |
| Upstream field points selected for analysis |
0010 |
| Downstream plasma points selected for analysis |
0006
|
| Downstream field points selected for analysis |
0006 |
| Minimum chisq/dof for RH8,RH9,RH10 |
10.06, 14.48, 15.03 |
Event added to database
|
Tue Oct 24 16:34:24 2017
|
Event last processed
|
Wed Oct 25 11:51:16 2017
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
50.628 ± 2.867
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-360.7 ± 1.2 |
-406.4 ± 1.0 |
| Vy GSE [km/s] |
-27.6 ± 3.2 |
-21.8 ± 1.5 |
| Vz GSE [km/s] |
4.9 ± 3.0 |
-9.7 ± 1.4 |
| Wi [km/s] |
22.6 ± 0.7 |
28.1 ± 0.4 |
| We [km/s] |
713.2 ± 23.1 |
888.0 ± 13.3 |
| Ni [n/cc] |
8.0 ± 0.5 |
12.6 ± 0.6 |
| Bx GSE [nT] |
-1.0 ± 0.6 |
-0.1 ± 0.7 |
| By GSE [nT] |
9.6 ± 0.4 |
16.3 ± 0.5 |
| Bz GSE [nT] |
3.9 ± 1.1 |
3.9 ± 1.3 |
Plasma Beta
|
0.078 ± 0.078
|
0.074 ± 0.073
|
Sound Speed [km/s]
|
29.12 ± 0.94
|
36.25 ± 0.54
|
Alfven Speed [km/s]
|
80.87 ± 2.82
|
103.17 ± 3.13
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.744 ± 0.432 |
0.239 ± 0.385 |
0.624 ± 0.527 |
38.64 ± 40.13 |
162.15 ± 27.78 |
| VC |
-0.946 ± 0.020 |
0.121 ± 0.069 |
-0.300 ± 0.290 |
-17.45 ± 3.50 |
172.72 ± 4.16 |
| MX1 |
-0.947 ± 0.025 |
0.141 ± 0.074 |
-0.288 ± 0.279 |
-16.71 ± 4.57 |
171.55 ± 4.48 |
| MX2 |
-0.945 ± 0.022 |
0.139 ± 0.072 |
-0.296 ± 0.287 |
-17.22 ± 3.71 |
171.66 ± 4.35 |
| MX3 |
-0.943 ± 0.020 |
0.137 ± 0.070 |
-0.304 ± 0.294 |
-17.69 ± 3.24 |
171.74 ± 4.24 |
| RH08 |
-0.970 ± 0.003 |
0.128 ± 0.009 |
-0.207 ± 0.204 |
-11.93 ± 0.73 |
172.48 ± 0.54 |
| RH09 |
-0.982 ± 0.013 |
0.095 ± 0.070 |
-0.162 ± 0.161 |
-9.32 ± 4.03 |
174.48 ± 4.07 |
| RH10 |
-0.985 ± 0.012 |
0.078 ± 0.070 |
-0.151 ± 0.150 |
-8.68 ± 4.03 |
175.49 ± 4.07 |
| Average |
-0.933 |
0.135 |
-0.135 |
-7.544 |
171.535 |
| Median |
-0.946 |
0.137 |
-0.207 |
-11.929 |
172.479 |
| Deviation |
0.078 |
0.048 |
0.313 |
19.031 |
4.048 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
58.3 ± 5.7 |
336.6 ± 1.2 |
1.63 ± 0.13 |
| VC |
84.7 ± 2.1 |
467.9 ± 2.4 |
1.63 ± 0.13 |
| MX1 |
83.3 ± 2.1 |
467.8 ± 2.4 |
1.63 ± 0.13 |
| MX2 |
83.6 ± 2.1 |
467.0 ± 2.4 |
1.63 ± 0.13 |
| MX3 |
83.9 ± 2.1 |
466.1 ± 2.4 |
1.63 ± 0.13 |
| RH08 |
82.2 ± 2.2 |
476.1 ± 2.3 |
1.63 ± 0.13 |
| RH09 |
82.9 ± 2.4 |
481.3 ± 2.3 |
1.63 ± 0.13 |
| RH10 |
83.5 ± 2.4 |
482.8 ± 17.3 |
1.63 ± 0.13 |
| Average |
80.3 |
455.7 |
1.63 |
| Median |
83.5 |
467.9 |
1.63 |
| Deviation |
8.9 |
48.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
72.0 ± 2.2 |
14.6 ± 0.5 |
42.5 ± 1.5 |
84.7 ± 2.9 |
4.94 ± 0.14 |
0.85 ± 0.03 |
| VC |
131.3 ± 1.4 |
2.6 ± 0.1 |
7.5 ± 0.3 |
85.9 ± 2.9 |
51.49 ± 1.95 |
1.53 ± 0.06 |
| MX1 |
131.3 ± 1.4 |
3.2 ± 0.1 |
9.4 ± 0.3 |
85.9 ± 2.9 |
41.35 ± 1.57 |
1.53 ± 0.06 |
| MX2 |
131.3 ± 1.4 |
3.0 ± 0.1 |
9.0 ± 0.3 |
85.9 ± 2.9 |
43.30 ± 1.65 |
1.53 ± 0.06 |
| MX3 |
131.3 ± 1.4 |
2.9 ± 0.1 |
8.6 ± 0.3 |
85.9 ± 2.9 |
45.25 ± 1.73 |
1.53 ± 0.06 |
| RH8 |
130.8 ± 1.3 |
3.7 ± 0.1 |
11.0 ± 0.4 |
85.9 ± 2.9 |
34.99 ± 1.27 |
1.52 ± 0.06 |
| RH9 |
130.4 ± 1.3 |
3.4 ± 0.1 |
10.0 ± 0.3 |
85.9 ± 2.9 |
38.50 ± 1.35 |
1.52 ± 0.06 |
| RH10 |
130.2 ± 1.2 |
3.1 ± 0.1 |
9.1 ± 0.3 |
85.9 ± 2.9 |
42.28 ± 1.47 |
1.52 ± 0.06 |
| Average |
123.6 |
4.6 |
13.4 |
85.8 |
37.8 |
1.4 |
| Median |
131.3 |
3.2 |
9.4 |
85.9 |
42.3 |
1.5 |
| Deviation |
20.8 |
4.1 |
11.8 |
0.4 |
14.1 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
45.7 ± 1.1 |
18.2 ± 0.2 |
54.2 ± 1.6 |
107.8 ± 2.9 |
2.51 ± 0.07 |
0.42 ± 0.02 |
| VC |
83.0 ± 1.1 |
3.2 ± 0.0 |
9.6 ± 0.3 |
109.3 ± 2.9 |
26.05 ± 0.47 |
0.76 ± 0.03 |
| MX1 |
83.0 ± 1.1 |
4.0 ± 0.0 |
12.0 ± 0.4 |
109.3 ± 2.9 |
20.92 ± 0.38 |
0.76 ± 0.03 |
| MX2 |
83.0 ± 1.1 |
3.8 ± 0.0 |
11.4 ± 0.3 |
109.3 ± 2.9 |
21.91 ± 0.40 |
0.76 ± 0.03 |
| MX3 |
83.0 ± 1.1 |
3.6 ± 0.0 |
10.9 ± 0.3 |
109.3 ± 2.9 |
22.90 ± 0.42 |
0.76 ± 0.03 |
| RH8 |
82.7 ± 1.1 |
4.7 ± 0.1 |
14.1 ± 0.4 |
109.3 ± 2.9 |
17.71 ± 0.32 |
0.76 ± 0.03 |
| RH9 |
82.6 ± 1.1 |
4.2 ± 0.1 |
12.8 ± 0.4 |
109.3 ± 2.9 |
19.53 ± 0.34 |
0.76 ± 0.03 |
| RH10 |
82.6 ± 1.1 |
3.8 ± 0.0 |
11.6 ± 0.4 |
109.3 ± 2.9 |
21.46 ± 0.37 |
0.76 ± 0.03 |
| Average |
78.2 |
5.7 |
17.1 |
109.1 |
19.1 |
0.7 |
| Median |
83.0 |
4.0 |
12.0 |
109.3 |
21.5 |
0.8 |
| Deviation |
13.1 |
5.1 |
15.0 |
0.5 |
7.1 |
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)
| 
