Database: Ace Shock Analysis
Event ID: 20140500307
Observation time: 02/19/2014 50.13053 0307 [UT]
|
|
General
Information (About, Top)
| Year |
2014 |
| Fractional day of year |
50.130533 |
| Arrival time of shock [seconds of day] |
11278.1 ± 140.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
231.405 |
| Y GSE location of spacecraft [Re] |
-39.884 |
| Z GSE location of spacecraft [Re] |
-10.341 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0005 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0009 |
| Minimum chisq/dof for RH8,RH9,RH10 |
25.11, 38.11, 39.91 |
Event added to database
|
Fri Oct 10 10:22:11 2014
|
Event last processed
|
Wed Oct 15 11:12:46 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
39.559 ± 4.347
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-382.4 ± 3.6 |
-470.0 ± 2.6 |
| Vy GSE [km/s] |
-15.6 ± 3.5 |
-23.2 ± 7.0 |
| Vz GSE [km/s] |
13.7 ± 4.5 |
-16.2 ± 1.4 |
| Wi [km/s] |
17.4 ± 0.9 |
27.3 ± 1.0 |
| We [km/s] |
551.7 ± 28.3 |
864.6 ± 32.4 |
| Ni [n/cc] |
1.8 ± 0.1 |
3.4 ± 0.3 |
| Bx GSE [nT] |
2.8 ± 0.2 |
5.5 ± 0.4 |
| By GSE [nT] |
-4.2 ± 0.2 |
-4.1 ± 0.8 |
| Bz GSE [nT] |
-6.7 ± 0.1 |
-13.7 ± 0.4 |
Plasma Beta
|
0.016 ± 0.016
|
0.023 ± 0.022
|
Sound Speed [km/s]
|
22.52 ± 1.15
|
35.30 ± 1.32
|
Alfven Speed [km/s]
|
137.04 ± 5.46
|
181.71 ± 7.92
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.992 ± 0.184 |
0.126 ± 1.450 |
0.003 ± 0.003 |
0.19 ± 4.27 |
172.79 ± 83.73 |
| VC |
-0.943 ± 0.017 |
-0.081 ± 0.081 |
-0.322 ± 0.310 |
-18.77 ± 2.82 |
184.93 ± 4.92 |
| MX1 |
-0.930 ± 0.021 |
-0.104 ± 0.115 |
-0.352 ± 0.337 |
-20.62 ± 2.77 |
186.35 ± 7.11 |
| MX2 |
-0.931 ± 0.020 |
-0.095 ± 0.101 |
-0.354 ± 0.338 |
-20.70 ± 2.83 |
185.81 ± 6.20 |
| MX3 |
-0.931 ± 0.020 |
-0.086 ± 0.088 |
-0.355 ± 0.339 |
-20.78 ± 2.90 |
185.28 ± 5.42 |
| RH08 |
-0.932 ± 0.003 |
-0.123 ± 0.017 |
-0.341 ± 0.327 |
-19.92 ± 0.37 |
187.52 ± 1.05 |
| RH09 |
-0.932 ± 0.025 |
-0.123 ± 0.070 |
-0.341 ± 0.327 |
-19.92 ± 4.02 |
187.52 ± 4.29 |
| RH10 |
-0.932 ± 0.025 |
-0.123 ± 0.070 |
-0.341 ± 0.327 |
-19.92 ± 4.02 |
187.52 ± 4.29 |
| Average |
-0.940 |
-0.076 |
-0.300 |
-17.556 |
184.714 |
| Median |
-0.932 |
-0.095 |
-0.341 |
-19.925 |
186.351 |
| Deviation |
0.021 |
0.083 |
0.123 |
7.200 |
4.931 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
66.8 ± 1.5 |
558.6 ± 4.6 |
1.82 ± 0.04 |
| VC |
89.1 ± 1.5 |
553.5 ± 4.8 |
1.82 ± 0.04 |
| MX1 |
88.6 ± 1.5 |
548.5 ± 4.8 |
1.82 ± 0.04 |
| MX2 |
88.8 ± 1.5 |
548.6 ± 4.8 |
1.82 ± 0.04 |
| MX3 |
89.0 ± 1.5 |
548.7 ± 4.8 |
1.82 ± 0.04 |
| RH08 |
88.6 ± 1.5 |
549.3 ± 4.8 |
1.82 ± 0.04 |
| RH09 |
88.6 ± 1.5 |
549.3 ± 4.8 |
1.82 ± 0.04 |
| RH10 |
88.6 ± 1.5 |
549.3 ± 30.0 |
1.82 ± 0.04 |
| Average |
86.0 |
550.7 |
1.82 |
| Median |
88.6 |
549.3 |
1.82 |
| Deviation |
7.8 |
3.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
181.2 ± 3.4 |
8.8 ± 0.4 |
54.1 ± 2.2 |
138.6 ± 5.4 |
20.66 ± 1.15 |
1.31 ± 0.04 |
| VC |
196.0 ± 3.1 |
0.3 ± 0.0 |
2.1 ± 0.1 |
138.9 ± 5.4 |
580.93 ± 33.69 |
1.41 ± 0.04 |
| MX1 |
196.0 ± 3.1 |
0.5 ± 0.0 |
3.4 ± 0.1 |
138.9 ± 5.4 |
358.96 ± 20.90 |
1.41 ± 0.04 |
| MX2 |
196.1 ± 3.1 |
0.5 ± 0.0 |
2.9 ± 0.1 |
138.9 ± 5.4 |
419.41 ± 24.46 |
1.41 ± 0.04 |
| MX3 |
196.2 ± 3.1 |
0.4 ± 0.0 |
2.4 ± 0.1 |
138.9 ± 5.4 |
503.23 ± 29.41 |
1.41 ± 0.04 |
| RH8 |
195.7 ± 3.1 |
0.5 ± 0.0 |
3.4 ± 0.1 |
138.9 ± 5.4 |
357.35 ± 20.67 |
1.41 ± 0.04 |
| RH9 |
195.7 ± 3.1 |
0.5 ± 0.0 |
3.4 ± 0.1 |
138.9 ± 5.4 |
357.35 ± 20.67 |
1.41 ± 0.04 |
| RH10 |
195.7 ± 3.1 |
0.5 ± 0.0 |
3.4 ± 0.1 |
138.9 ± 5.4 |
357.35 ± 20.67 |
1.41 ± 0.04 |
| Average |
194.1 |
1.5 |
9.4 |
138.8 |
369.4 |
1.4 |
| Median |
196.0 |
0.5 |
3.4 |
138.9 |
359.0 |
1.4 |
| Deviation |
5.2 |
2.9 |
18.1 |
0.1 |
163.6 |
0.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
95.3 ± 3.2 |
13.7 ± 0.5 |
71.7 ± 3.1 |
184.6 ± 7.9 |
6.96 ± 0.35 |
0.52 ± 0.03 |
| VC |
103.0 ± 2.5 |
0.5 ± 0.0 |
2.8 ± 0.1 |
185.1 ± 7.9 |
195.74 ± 9.65 |
0.56 ± 0.03 |
| MX1 |
103.2 ± 2.4 |
0.9 ± 0.0 |
4.5 ± 0.2 |
185.1 ± 7.9 |
121.05 ± 5.97 |
0.56 ± 0.03 |
| MX2 |
103.3 ± 2.4 |
0.7 ± 0.0 |
3.8 ± 0.2 |
185.1 ± 7.9 |
141.49 ± 6.97 |
0.56 ± 0.03 |
| MX3 |
103.3 ± 2.4 |
0.6 ± 0.0 |
3.2 ± 0.1 |
185.1 ± 7.9 |
169.82 ± 8.35 |
0.56 ± 0.03 |
| RH8 |
102.9 ± 2.3 |
0.9 ± 0.0 |
4.5 ± 0.2 |
185.1 ± 7.9 |
120.38 ± 5.98 |
0.56 ± 0.03 |
| RH9 |
102.9 ± 2.3 |
0.9 ± 0.0 |
4.5 ± 0.2 |
185.1 ± 7.9 |
120.38 ± 5.98 |
0.56 ± 0.03 |
| RH10 |
102.9 ± 2.3 |
0.9 ± 0.0 |
4.5 ± 0.2 |
185.1 ± 7.9 |
120.38 ± 5.98 |
0.56 ± 0.03 |
| Average |
102.1 |
2.4 |
12.4 |
185.1 |
124.5 |
0.6 |
| Median |
103.0 |
0.9 |
4.5 |
185.1 |
121.1 |
0.6 |
| Deviation |
2.7 |
4.6 |
24.0 |
0.2 |
55.2 |
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)
| 
