Database: Ace Shock Analysis
Event ID: 20121821605
Observation time: 06/30/2012 182.67039 1605 [UT]
|
|
General
Information (About, Top)
| Year |
2012 |
| Fractional day of year |
182.670388 |
| Arrival time of shock [seconds of day] |
57921.5 ± 20.0 |
| Shock type |
FR |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
240.812 |
| Y GSE location of spacecraft [Re] |
38.566 |
| Z GSE location of spacecraft [Re] |
22.648 |
| Upstream plasma points selected for analysis |
0003 |
| Upstream field points selected for analysis |
0342 |
| Downstream plasma points selected for analysis |
0003
|
| Downstream field points selected for analysis |
0216 |
| Minimum chisq/dof for RH8,RH9,RH10 |
21.24, Infinity, -483.01 |
Event added to database
|
Tue Oct 14 16:54:09 2014
|
Event last processed
|
Tue Oct 14 17:04:29 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
36.701 ± 1.293
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-623.0 ± 33.1 |
-658.5 ± 1.2 |
| Vy GSE [km/s] |
89.8 ± 50.3 |
26.2 ± 3.6 |
| Vz GSE [km/s] |
-28.3 ± 9.8 |
-7.0 ± 6.8 |
| Wi [km/s] |
79.4 ± 2.7 |
61.8 ± 0.7 |
| We [km/s] |
2510.6 ± 83.9 |
1953.1 ± 22.8 |
| Ni [n/cc] |
6.9 ± 2.0 |
3.3 ± 0.1 |
| Bx GSE [nT] |
3.5 ± 2.1 |
4.5 ± 0.4 |
| By GSE [nT] |
0.5 ± 8.3 |
-4.6 ± 0.1 |
| Bz GSE [nT] |
2.2 ± 0.9 |
0.1 ± 0.3 |
Plasma Beta
|
1.528 ± 1.283
|
0.652 ± 0.653
|
Sound Speed [km/s]
|
102.50 ± 3.42
|
79.74 ± 0.93
|
Alfven Speed [km/s]
|
69.89 ± 20.75
|
76.52 ± 2.48
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.944 ± 0.096 |
0.300 ± 0.295 |
-0.137 ± 0.137 |
-7.90 ± 8.54 |
162.37 ± 17.90 |
| VC |
-0.884 ± 0.421 |
-0.303 ± 0.977 |
-0.355 ± 0.339 |
-20.80 ± 43.89 |
198.92 ± 63.02 |
| MX1 |
-0.633 ± 0.644 |
0.455 ± 0.658 |
-0.626 ± 0.527 |
-38.75 ± 57.47 |
144.30 ± 49.46 |
| MX2 |
-0.954 ± 0.104 |
0.268 ± 0.365 |
0.135 ± 0.134 |
7.75 ± 6.66 |
164.32 ± 21.93 |
| MX3 |
-0.967 ± 0.047 |
-0.253 ± 0.180 |
0.007 ± 0.007 |
0.41 ± 50.90 |
194.65 ± 10.63 |
| RH08 |
-0.916 ± 0.027 |
0.400 ± 0.063 |
0.028 ± 0.028 |
1.60 ± 4.06 |
156.43 ± 3.91 |
| RH09 |
-0.000 ± 0.035 |
-0.000 ± 0.000 |
-1.000 ± 0.000 |
-90.00 ± 2.00 |
0.00 ± 2.00 |
| RH10 |
-0.407 ± 0.063 |
-0.787 ± 0.043 |
-0.464 ± 0.427 |
-27.63 ± 4.07 |
242.67 ± 4.47 |
| Average |
-0.713 |
0.010 |
-0.302 |
-21.914 |
157.959 |
| Median |
-0.884 |
0.268 |
-0.137 |
-7.900 |
164.319 |
| Deviation |
0.350 |
0.431 |
0.386 |
31.805 |
71.115 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
62.4 ± 16.0 |
607.0 ± 12.3 |
0.52 ± 0.18 |
| VC |
45.5 ± 37.5 |
468.8 ± 28.9 |
0.52 ± 0.18 |
| MX1 |
63.1 ± 23.1 |
477.3 ± 11.5 |
0.52 ± 0.18 |
| MX2 |
67.2 ± 12.3 |
595.7 ± 8.8 |
0.52 ± 0.18 |
| MX3 |
53.4 ± 26.8 |
510.2 ± 23.2 |
0.52 ± 0.18 |
| RH08 |
67.0 ± 15.4 |
603.3 ± 7.1 |
0.52 ± 0.18 |
| RH09 |
73.1 ± 10.2 |
38.4 ± 16.9 |
0.52 ± 0.18 |
| RH10 |
35.0 ± 17.3 |
106.3 ± 95.6 |
0.52 ± 0.18 |
| Average |
58.4 |
425.9 |
0.52 |
| Median |
63.1 |
510.2 |
0.52 |
| Deviation |
12.8 |
225.8 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-11.9 ± 18.4 |
27.0 ± 5.9 |
32.4 ± 9.6 |
121.8 ± 12.5 |
-0.36 ± 0.60 |
-0.09 ± 0.14 |
| VC |
-65.0 ± 47.6 |
42.4 ± 9.6 |
49.0 ± 14.5 |
117.2 ± 10.9 |
-1.43 ± 0.74 |
-0.53 ± 0.34 |
| MX1 |
24.1 ± 8.0 |
26.3 ± 5.7 |
31.6 ± 9.4 |
121.9 ± 12.5 |
0.99 ± 0.54 |
0.20 ± 0.08 |
| MX2 |
-18.9 ± 17.5 |
22.4 ± 4.8 |
27.1 ± 8.0 |
122.7 ± 12.8 |
-0.76 ± 0.61 |
-0.15 ± 0.12 |
| MX3 |
-69.6 ± 44.3 |
35.3 ± 7.8 |
41.6 ± 12.4 |
119.6 ± 11.8 |
-1.86 ± 0.79 |
-0.56 ± 0.30 |
| RH8 |
-2.6 ± 11.7 |
22.5 ± 4.9 |
27.3 ± 8.1 |
122.7 ± 12.8 |
-0.04 ± 0.54 |
-0.02 ± 0.09 |
| RH9 |
10.0 ± 9.8 |
16.6 ± 3.6 |
20.3 ± 6.0 |
123.6 ± 13.1 |
0.71 ± 0.71 |
0.09 ± 0.08 |
| RH10 |
-89.5 ± 57.1 |
51.2 ± 12.1 |
57.2 ± 17.0 |
113.6 ± 9.5 |
-1.66 ± 0.68 |
-0.76 ± 0.42 |
| Average |
-27.9 |
30.5 |
35.8 |
120.4 |
-0.6 |
-0.2 |
| Median |
-11.9 |
27.0 |
32.4 |
121.9 |
-0.4 |
-0.1 |
| Deviation |
41.5 |
11.6 |
12.5 |
3.4 |
1.1 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-23.4 ± 0.9 |
26.4 ± 0.6 |
35.5 ± 1.2 |
107.3 ± 2.3 |
-0.89 ± 0.03 |
-0.22 ± 0.01 |
| VC |
-108.1 ± 0.8 |
41.8 ± 0.9 |
53.6 ± 1.7 |
102.3 ± 2.2 |
-2.59 ± 0.05 |
-1.06 ± 0.02 |
| MX1 |
44.0 ± 4.8 |
25.7 ± 0.6 |
34.6 ± 1.1 |
107.5 ± 2.3 |
1.72 ± 0.23 |
0.41 ± 0.05 |
| MX2 |
-38.6 ± 1.5 |
21.8 ± 0.5 |
29.6 ± 1.0 |
108.3 ± 2.3 |
-1.77 ± 0.11 |
-0.36 ± 0.02 |
| MX3 |
-120.2 ± 2.0 |
34.6 ± 0.8 |
45.6 ± 1.5 |
105.0 ± 2.2 |
-3.47 ± 0.14 |
-1.15 ± 0.04 |
| RH8 |
-10.3 ± 1.0 |
22.0 ± 0.5 |
29.8 ± 1.0 |
108.3 ± 2.3 |
-0.47 ± 0.05 |
-0.10 ± 0.01 |
| RH9 |
31.4 ± 6.8 |
16.2 ± 0.4 |
22.2 ± 0.7 |
109.3 ± 2.3 |
1.95 ± 0.47 |
0.29 ± 0.07 |
| RH10 |
-144.1 ± 1.9 |
50.9 ± 1.1 |
62.7 ± 2.0 |
98.1 ± 2.0 |
-2.83 ± 0.07 |
-1.47 ± 0.03 |
| Average |
-46.2 |
29.9 |
39.2 |
105.8 |
-1.0 |
-0.5 |
| Median |
-23.4 |
26.4 |
35.5 |
107.5 |
-0.9 |
-0.2 |
| Deviation |
70.6 |
11.7 |
13.6 |
3.8 |
2.0 |
0.7 |
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)
| 
