Database: Ace Shock Analysis
Event ID: 20073162125
Observation time: 11/12/2007 316.89278 2125 [UT]
|
|
General
Information (About, Top)
| Year |
2007 |
| Fractional day of year |
316.892775 |
| Arrival time of shock [seconds of day] |
77135.8 ± 60.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
237.780 |
| Y GSE location of spacecraft [Re] |
-32.968 |
| Z GSE location of spacecraft [Re] |
-10.720 |
| Upstream plasma points selected for analysis |
0010 |
| Upstream field points selected for analysis |
0666 |
| Downstream plasma points selected for analysis |
0009
|
| Downstream field points selected for analysis |
0604 |
| Minimum chisq/dof for RH8,RH9,RH10 |
6.35, 9.63, 9.76 |
Event added to database
|
Tue Oct 14 16:22:35 2014
|
Event last processed
|
Wed Oct 15 12:51:51 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
52.259 ± 2.321
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-384.3 ± 1.7 |
-407.3 ± 1.1 |
| Vy GSE [km/s] |
-31.2 ± 2.3 |
-33.3 ± 3.5 |
| Vz GSE [km/s] |
42.8 ± 2.0 |
55.1 ± 2.6 |
| Wi [km/s] |
36.7 ± 1.0 |
42.6 ± 0.7 |
| We [km/s] |
1159.4 ± 32.4 |
1348.1 ± 22.5 |
| Ni [n/cc] |
13.5 ± 0.4 |
19.7 ± 1.2 |
| Bx GSE [nT] |
0.5 ± 0.9 |
1.4 ± 0.5 |
| By GSE [nT] |
-4.2 ± 0.3 |
-7.5 ± 0.5 |
| Bz GSE [nT] |
1.2 ± 0.7 |
0.8 ± 1.0 |
Plasma Beta
|
1.904 ± 2.000
|
1.279 ± 1.288
|
Sound Speed [km/s]
|
47.33 ± 1.32
|
55.04 ± 0.92
|
Alfven Speed [km/s]
|
26.68 ± 1.31
|
37.91 ± 2.79
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.994 ± 0.076 |
-0.107 ± 0.682 |
0.022 ± 0.022 |
1.26 ± 46.93 |
186.16 ± 39.33 |
| VC |
-0.884 ± 0.052 |
-0.087 ± 0.151 |
0.459 ± 0.424 |
27.33 ± 6.22 |
185.65 ± 9.77 |
| MX1 |
-0.840 ± 0.114 |
-0.262 ± 0.322 |
0.475 ± 0.436 |
28.37 ± 6.86 |
197.32 ± 21.96 |
| MX2 |
-0.854 ± 0.105 |
-0.254 ± 0.308 |
0.453 ± 0.419 |
26.95 ± 6.83 |
196.55 ± 20.65 |
| MX3 |
-0.870 ± 0.104 |
-0.247 ± 0.296 |
0.428 ± 0.399 |
25.31 ± 8.52 |
195.87 ± 19.49 |
| RH08 |
-0.969 ± 0.003 |
-0.059 ± 0.014 |
0.240 ± 0.235 |
13.90 ± 0.68 |
183.51 ± 0.82 |
| RH09 |
-0.985 ± 0.012 |
-0.078 ± 0.070 |
0.151 ± 0.150 |
8.68 ± 4.03 |
184.51 ± 4.07 |
| RH10 |
-0.985 ± 0.012 |
-0.078 ± 0.070 |
0.151 ± 0.150 |
8.68 ± 4.03 |
184.51 ± 4.07 |
| Average |
-0.923 |
-0.147 |
0.297 |
17.561 |
189.258 |
| Median |
-0.884 |
-0.087 |
0.428 |
25.315 |
186.159 |
| Deviation |
0.066 |
0.090 |
0.178 |
10.676 |
6.123 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
89.0 ± 12.2 |
459.6 ± 1.4 |
1.45 ± 0.07 |
| VC |
84.6 ± 13.5 |
445.2 ± 1.6 |
1.45 ± 0.07 |
| MX1 |
74.4 ± 13.5 |
434.3 ± 1.6 |
1.45 ± 0.07 |
| MX2 |
75.3 ± 13.5 |
438.4 ± 1.6 |
1.45 ± 0.07 |
| MX3 |
76.2 ± 13.4 |
442.6 ± 1.6 |
1.45 ± 0.07 |
| RH08 |
89.9 ± 13.0 |
465.0 ± 1.5 |
1.45 ± 0.07 |
| RH09 |
89.5 ± 12.7 |
465.9 ± 1.5 |
1.45 ± 0.07 |
| RH10 |
89.5 ± 12.7 |
465.9 ± 13.9 |
1.45 ± 0.07 |
| Average |
83.5 |
452.1 |
1.45 |
| Median |
89.0 |
459.6 |
1.45 |
| Deviation |
7.1 |
13.4 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
73.3 ± 1.5 |
0.4 ± 0.0 |
0.5 ± 0.0 |
54.4 ± 1.2 |
186.40 ± 7.62 |
1.35 ± 0.05 |
| VC |
83.1 ± 1.7 |
2.2 ± 0.1 |
2.5 ± 0.1 |
54.3 ± 1.2 |
37.86 ± 1.55 |
1.53 ± 0.06 |
| MX1 |
82.9 ± 1.4 |
6.3 ± 0.2 |
7.2 ± 0.4 |
54.0 ± 1.2 |
13.18 ± 0.55 |
1.54 ± 0.05 |
| MX2 |
82.7 ± 1.4 |
5.9 ± 0.2 |
6.8 ± 0.3 |
54.0 ± 1.2 |
13.94 ± 0.58 |
1.53 ± 0.05 |
| MX3 |
82.4 ± 1.4 |
5.6 ± 0.2 |
6.4 ± 0.3 |
54.1 ± 1.2 |
14.77 ± 0.62 |
1.52 ± 0.05 |
| RH8 |
80.5 ± 1.6 |
0.0 ± 0.0 |
0.0 ± 0.0 |
54.4 ± 1.2 |
3833.83 ± 154.56 |
1.48 ± 0.05 |
| RH9 |
78.3 ± 1.6 |
0.2 ± 0.0 |
0.3 ± 0.0 |
54.4 ± 1.2 |
357.84 ± 14.46 |
1.44 ± 0.05 |
| RH10 |
78.3 ± 1.6 |
0.2 ± 0.0 |
0.3 ± 0.0 |
54.4 ± 1.2 |
357.84 ± 14.46 |
1.44 ± 0.05 |
| Average |
80.2 |
2.6 |
3.0 |
54.2 |
602.0 |
1.5 |
| Median |
82.4 |
2.2 |
2.5 |
54.4 |
186.4 |
1.5 |
| Deviation |
3.4 |
2.8 |
3.3 |
0.2 |
1314.3 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
50.0 ± 1.1 |
0.5 ± 0.0 |
0.6 ± 0.0 |
66.9 ± 2.1 |
94.71 ± 5.67 |
0.75 ± 0.03 |
| VC |
56.9 ± 1.8 |
2.9 ± 0.2 |
3.6 ± 0.3 |
66.8 ± 2.1 |
19.35 ± 1.37 |
0.85 ± 0.05 |
| MX1 |
57.2 ± 2.0 |
8.5 ± 0.4 |
10.2 ± 0.8 |
66.3 ± 2.1 |
6.78 ± 0.54 |
0.86 ± 0.05 |
| MX2 |
56.9 ± 2.0 |
8.0 ± 0.4 |
9.6 ± 0.7 |
66.4 ± 2.1 |
7.15 ± 0.56 |
0.86 ± 0.05 |
| MX3 |
56.6 ± 1.9 |
7.5 ± 0.4 |
9.1 ± 0.7 |
66.4 ± 2.1 |
7.57 ± 0.59 |
0.85 ± 0.05 |
| RH8 |
55.1 ± 1.4 |
0.0 ± 0.0 |
0.0 ± 0.0 |
66.9 ± 2.1 |
1958.66 ± 123.74 |
0.83 ± 0.04 |
| RH9 |
53.6 ± 1.2 |
0.3 ± 0.0 |
0.4 ± 0.0 |
66.9 ± 2.1 |
182.77 ± 11.25 |
0.80 ± 0.04 |
| RH10 |
53.6 ± 1.2 |
0.3 ± 0.0 |
0.4 ± 0.0 |
66.9 ± 2.1 |
182.77 ± 11.25 |
0.80 ± 0.04 |
| Average |
55.0 |
3.5 |
4.2 |
66.7 |
307.5 |
0.8 |
| Median |
56.6 |
2.9 |
3.6 |
66.9 |
94.7 |
0.9 |
| Deviation |
2.5 |
3.8 |
4.6 |
0.2 |
671.5 |
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)
| 
