Database: Ace Shock Analysis
Event ID: 20072011137
Observation time: 07/20/2007 201.48415 1137 [UT]
|
|
General
Information (About, Top)
| Year |
2007 |
| Fractional day of year |
201.484153 |
| Arrival time of shock [seconds of day] |
41830.8 ± 120.0 |
| Shock type |
SR |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
225.270 |
| Y GSE location of spacecraft [Re] |
3.438 |
| Z GSE location of spacecraft [Re] |
22.046 |
| Upstream plasma points selected for analysis |
0011 |
| Upstream field points selected for analysis |
0731 |
| Downstream plasma points selected for analysis |
0011
|
| Downstream field points selected for analysis |
0689 |
| Minimum chisq/dof for RH8,RH9,RH10 |
2.58, 3.42, 3.51 |
Event added to database
|
Tue Oct 14 15:33:17 2014
|
Event last processed
|
Wed Oct 15 12:34:58 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
63.050 ± 5.058
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-369.4 ± 1.3 |
-378.7 ± 4.3 |
| Vy GSE [km/s] |
2.0 ± 2.1 |
21.0 ± 10.1 |
| Vz GSE [km/s] |
28.1 ± 1.0 |
40.2 ± 4.8 |
| Wi [km/s] |
18.9 ± 1.0 |
51.0 ± 1.8 |
| We [km/s] |
598.9 ± 31.0 |
1611.9 ± 58.0 |
| Ni [n/cc] |
55.2 ± 3.8 |
10.7 ± 1.2 |
| Bx GSE [nT] |
-6.1 ± 0.3 |
-5.5 ± 1.7 |
| By GSE [nT] |
1.9 ± 0.7 |
1.5 ± 2.5 |
| Bz GSE [nT] |
-8.0 ± 0.9 |
-5.0 ± 0.9 |
Plasma Beta
|
0.408 ± 0.410
|
0.973 ± 0.882
|
Sound Speed [km/s]
|
24.45 ± 1.27
|
65.81 ± 2.37
|
Alfven Speed [km/s]
|
30.14 ± 2.70
|
54.22 ± 9.77
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.957 ± 0.142 |
-0.107 ± 0.636 |
-0.271 ± 0.264 |
-15.71 ± 26.29 |
186.35 ± 38.06 |
| VC |
-0.601 ± 0.450 |
0.653 ± 0.419 |
0.461 ± 0.425 |
27.45 ± 18.56 |
132.63 ± 38.50 |
| MX1 |
-0.820 ± 0.382 |
0.572 ± 0.548 |
-0.025 ± 0.025 |
-1.46 ± 33.78 |
145.12 ± 38.31 |
| MX2 |
-0.857 ± 0.363 |
0.495 ± 0.620 |
-0.142 ± 0.141 |
-8.15 ± 31.60 |
150.02 ± 41.36 |
| MX3 |
-0.671 ± 0.473 |
0.722 ± 0.440 |
0.169 ± 0.167 |
9.70 ± 26.93 |
132.88 ± 37.28 |
| RH08 |
-0.969 ± 0.005 |
0.059 ± 0.018 |
0.240 ± 0.235 |
13.90 ± 1.05 |
176.49 ± 1.08 |
| RH09 |
-0.970 ± 0.017 |
0.077 ± 0.071 |
0.229 ± 0.225 |
13.24 ± 3.97 |
175.49 ± 4.17 |
| RH10 |
-0.973 ± 0.016 |
0.077 ± 0.071 |
0.218 ± 0.214 |
12.58 ± 3.96 |
175.49 ± 4.17 |
| Average |
-0.852 |
0.318 |
0.110 |
6.445 |
159.309 |
| Median |
-0.857 |
0.495 |
0.218 |
12.584 |
175.487 |
| Deviation |
0.146 |
0.324 |
0.238 |
13.926 |
21.539 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
40.4 ± 1.2 |
344.4 ± 0.2 |
0.19 ± 0.02 |
| VC |
82.9 ± 4.2 |
230.8 ± 0.1 |
0.19 ± 0.02 |
| MX1 |
51.9 ± 4.1 |
299.1 ± 0.1 |
0.19 ± 0.02 |
| MX2 |
44.3 ± 3.9 |
310.0 ± 0.1 |
0.19 ± 0.02 |
| MX3 |
66.1 ± 4.4 |
248.6 ± 0.2 |
0.19 ± 0.02 |
| RH08 |
66.2 ± 2.1 |
361.6 ± 0.2 |
0.19 ± 0.02 |
| RH09 |
65.4 ± 2.2 |
361.8 ± 0.2 |
0.19 ± 0.02 |
| RH10 |
64.8 ± 2.2 |
362.5 ± 1.7 |
0.19 ± 0.02 |
| Average |
60.2 |
314.9 |
0.19 |
| Median |
65.4 |
344.4 |
0.19 |
| Deviation |
13.9 |
52.4 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-1.1 ± 1.5 |
15.7 ± 0.5 |
22.9 ± 2.1 |
35.5 ± 1.9 |
-0.07 ± 0.10 |
-0.03 ± 0.04 |
| VC |
-5.4 ± 0.9 |
2.3 ± 0.1 |
3.7 ± 0.3 |
38.8 ± 1.9 |
-2.31 ± 0.40 |
-0.14 ± 0.03 |
| MX1 |
-4.3 ± 1.1 |
12.3 ± 0.4 |
18.6 ± 1.7 |
36.9 ± 1.8 |
-0.35 ± 0.10 |
-0.12 ± 0.03 |
| MX2 |
-3.6 ± 1.2 |
14.6 ± 0.5 |
21.6 ± 1.9 |
36.0 ± 1.8 |
-0.25 ± 0.08 |
-0.10 ± 0.03 |
| MX3 |
-5.3 ± 1.2 |
7.8 ± 0.3 |
12.2 ± 1.1 |
38.1 ± 1.8 |
-0.68 ± 0.16 |
-0.14 ± 0.03 |
| RH8 |
-3.1 ± 1.2 |
7.8 ± 0.3 |
12.2 ± 1.1 |
38.1 ± 1.8 |
-0.40 ± 0.16 |
-0.08 ± 0.03 |
| RH9 |
-3.2 ± 1.2 |
8.0 ± 0.3 |
12.5 ± 1.1 |
38.0 ± 1.8 |
-0.40 ± 0.15 |
-0.08 ± 0.03 |
| RH10 |
-3.1 ± 1.2 |
8.2 ± 0.3 |
12.8 ± 1.1 |
38.0 ± 1.8 |
-0.38 ± 0.15 |
-0.08 ± 0.03 |
| Average |
-3.6 |
9.6 |
14.6 |
37.4 |
-0.6 |
-0.1 |
| Median |
-3.2 |
8.2 |
12.8 |
38.0 |
-0.4 |
-0.1 |
| Deviation |
1.4 |
4.4 |
6.2 |
1.2 |
0.7 |
0.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-4.7 ± 5.1 |
34.5 ± 4.2 |
41.3 ± 7.4 |
78.3 ± 5.3 |
-0.14 ± 0.17 |
-0.06 ± 0.07 |
| VC |
-29.0 ± 4.3 |
5.1 ± 0.6 |
6.7 ± 1.2 |
85.4 ± 6.4 |
-5.75 ± 1.13 |
-0.34 ± 0.06 |
| MX1 |
-22.5 ± 3.7 |
26.9 ± 3.1 |
33.5 ± 6.0 |
81.2 ± 5.8 |
-0.85 ± 0.19 |
-0.28 ± 0.06 |
| MX2 |
-19.3 ± 3.5 |
31.9 ± 3.8 |
38.8 ± 7.0 |
79.4 ± 5.5 |
-0.61 ± 0.15 |
-0.24 ± 0.05 |
| MX3 |
-27.3 ± 5.0 |
17.1 ± 1.9 |
22.0 ± 4.0 |
83.8 ± 6.2 |
-1.62 ± 0.38 |
-0.33 ± 0.07 |
| RH8 |
-16.2 ± 3.7 |
17.0 ± 1.9 |
21.9 ± 3.9 |
83.9 ± 6.2 |
-0.95 ± 0.22 |
-0.19 ± 0.05 |
| RH9 |
-16.5 ± 3.5 |
17.6 ± 2.0 |
22.6 ± 4.1 |
83.8 ± 6.1 |
-0.94 ± 0.21 |
-0.20 ± 0.04 |
| RH10 |
-16.3 ± 3.5 |
18.0 ± 2.1 |
23.1 ± 4.2 |
83.7 ± 6.1 |
-0.91 ± 0.20 |
-0.20 ± 0.04 |
| Average |
-19.0 |
21.0 |
26.2 |
82.4 |
-1.5 |
-0.2 |
| Median |
-16.5 |
18.0 |
23.1 |
83.8 |
-0.9 |
-0.2 |
| Deviation |
7.6 |
9.6 |
11.2 |
2.5 |
1.8 |
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)
| 
