Database: Ace Shock Analysis
Event ID: 20071271057
Observation time: 05/07/2007 127.45647 1057 [UT]
|
|
General
Information (About, Top)
| Year |
2007 |
| Fractional day of year |
127.456470 |
| Arrival time of shock [seconds of day] |
39439.0 ± 80.0 |
| Shock type |
FR |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
245.354 |
| Y GSE location of spacecraft [Re] |
-23.297 |
| Z GSE location of spacecraft [Re] |
-14.843 |
| Upstream plasma points selected for analysis |
0009 |
| Upstream field points selected for analysis |
0593 |
| Downstream plasma points selected for analysis |
0011
|
| Downstream field points selected for analysis |
0693 |
| Minimum chisq/dof for RH8,RH9,RH10 |
8.28, 13.38, 13.88 |
Event added to database
|
Tue Oct 14 14:59:34 2014
|
Event last processed
|
Wed Oct 15 12:31:59 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
55.185 ± 6.432
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-343.4 ± 2.4 |
-373.3 ± 5.5 |
| Vy GSE [km/s] |
-41.5 ± 1.3 |
-45.8 ± 6.0 |
| Vz GSE [km/s] |
55.0 ± 2.5 |
26.7 ± 14.7 |
| Wi [km/s] |
34.2 ± 0.5 |
40.7 ± 2.4 |
| We [km/s] |
1081.4 ± 15.0 |
1286.3 ± 76.7 |
| Ni [n/cc] |
47.9 ± 2.8 |
17.6 ± 1.7 |
| Bx GSE [nT] |
-7.8 ± 1.4 |
-11.2 ± 1.0 |
| By GSE [nT] |
1.8 ± 1.4 |
11.5 ± 1.5 |
| Bz GSE [nT] |
1.6 ± 2.2 |
7.2 ± 3.7 |
Plasma Beta
|
1.624 ± 1.507
|
0.189 ± 0.179
|
Sound Speed [km/s]
|
44.15 ± 0.61
|
52.51 ± 3.13
|
Alfven Speed [km/s]
|
27.22 ± 2.57
|
94.12 ± 4.84
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.972 ± 0.084 |
-0.224 ± 0.348 |
0.063 ± 0.063 |
3.61 ± 24.87 |
192.99 ± 20.48 |
| VC |
-0.753 ± 0.121 |
-0.127 ± 0.154 |
-0.645 ± 0.536 |
-40.19 ± 10.60 |
189.60 ± 11.65 |
| MX1 |
-0.974 ± 0.143 |
0.050 ± 0.597 |
-0.221 ± 0.217 |
-12.74 ± 36.32 |
177.08 ± 35.13 |
| MX2 |
-0.860 ± 0.173 |
-0.048 ± 0.261 |
-0.508 ± 0.459 |
-30.50 ± 19.45 |
183.21 ± 17.34 |
| MX3 |
-0.855 ± 0.147 |
-0.055 ± 0.219 |
-0.515 ± 0.464 |
-31.01 ± 16.27 |
183.70 ± 14.63 |
| RH08 |
-0.648 ± 0.012 |
-0.596 ± 0.012 |
0.475 ± 0.435 |
28.35 ± 0.82 |
222.62 ± 1.00 |
| RH09 |
-0.619 ± 0.056 |
-0.589 ± 0.057 |
0.520 ± 0.467 |
31.30 ± 4.01 |
223.62 ± 4.76 |
| RH10 |
-0.644 ± 0.054 |
-0.572 ± 0.057 |
0.508 ± 0.459 |
30.56 ± 4.03 |
221.62 ± 4.65 |
| Average |
-0.791 |
-0.270 |
-0.040 |
-2.578 |
199.305 |
| Median |
-0.753 |
-0.127 |
0.063 |
3.610 |
192.986 |
| Deviation |
0.146 |
0.272 |
0.498 |
30.111 |
19.867 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
31.3 ± 11.8 |
330.0 ± 0.7 |
0.37 ± 0.03 |
| VC |
57.3 ± 15.1 |
205.8 ± 1.0 |
0.37 ± 0.03 |
| MX1 |
29.9 ± 15.3 |
299.4 ± 0.9 |
0.37 ± 0.03 |
| MX2 |
47.1 ± 16.0 |
246.9 ± 1.0 |
0.37 ± 0.03 |
| MX3 |
47.7 ± 16.0 |
245.0 ± 1.0 |
0.37 ± 0.03 |
| RH08 |
55.6 ± 12.6 |
267.1 ± 0.5 |
0.37 ± 0.03 |
| RH09 |
56.7 ± 13.0 |
260.4 ± 0.6 |
0.37 ± 0.03 |
| RH10 |
55.0 ± 12.9 |
267.2 ± 5.5 |
0.37 ± 0.03 |
| Average |
47.6 |
265.2 |
0.37 |
| Median |
55.0 |
267.1 |
0.37 |
| Deviation |
11.2 |
37.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-16.7 ± 2.4 |
21.8 ± 1.8 |
23.3 ± 2.2 |
47.1 ± 0.7 |
-0.78 ± 0.18 |
-0.36 ± 0.06 |
| VC |
-22.7 ± 1.2 |
12.9 ± 0.9 |
14.7 ± 1.4 |
50.3 ± 1.1 |
-1.77 ± 0.18 |
-0.45 ± 0.03 |
| MX1 |
-20.9 ± 2.0 |
22.2 ± 1.8 |
23.6 ± 2.2 |
46.9 ± 0.7 |
-0.95 ± 0.17 |
-0.45 ± 0.05 |
| MX2 |
-22.6 ± 1.4 |
16.6 ± 1.2 |
18.5 ± 1.7 |
49.2 ± 1.0 |
-1.38 ± 0.17 |
-0.46 ± 0.03 |
| MX3 |
-22.7 ± 1.3 |
16.4 ± 1.2 |
18.3 ± 1.7 |
49.2 ± 1.0 |
-1.39 ± 0.17 |
-0.46 ± 0.03 |
| RH8 |
-6.2 ± 2.4 |
13.5 ± 1.0 |
15.4 ± 1.5 |
50.1 ± 1.1 |
-0.47 ± 0.23 |
-0.12 ± 0.05 |
| RH9 |
-5.0 ± 2.4 |
13.1 ± 1.0 |
15.0 ± 1.4 |
50.2 ± 1.1 |
-0.40 ± 0.23 |
-0.10 ± 0.05 |
| RH10 |
-5.6 ± 2.4 |
13.8 ± 1.0 |
15.6 ± 1.5 |
50.0 ± 1.1 |
-0.42 ± 0.23 |
-0.11 ± 0.05 |
| Average |
-15.3 |
16.3 |
18.0 |
49.1 |
-0.9 |
-0.3 |
| Median |
-16.7 |
16.4 |
18.3 |
50.0 |
-0.8 |
-0.4 |
| Deviation |
8.3 |
3.8 |
3.6 |
1.4 |
0.5 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
-44.9 ± 3.7 |
42.6 ± 2.2 |
80.5 ± 4.1 |
99.0 ± 4.4 |
-1.06 ± 0.10 |
-0.46 ± 0.05 |
| VC |
-64.0 ± 12.3 |
25.4 ± 1.2 |
50.8 ± 2.6 |
104.8 ± 4.3 |
-2.52 ± 0.46 |
-0.61 ± 0.12 |
| MX1 |
-56.0 ± 8.2 |
43.4 ± 2.3 |
81.6 ± 4.2 |
98.7 ± 4.5 |
-1.29 ± 0.18 |
-0.57 ± 0.09 |
| MX2 |
-62.9 ± 11.1 |
32.7 ± 1.6 |
64.0 ± 3.3 |
102.8 ± 4.4 |
-1.92 ± 0.32 |
-0.61 ± 0.11 |
| MX3 |
-63.0 ± 11.2 |
32.3 ± 1.6 |
63.3 ± 3.3 |
102.9 ± 4.4 |
-1.95 ± 0.33 |
-0.61 ± 0.11 |
| RH8 |
-14.6 ± 6.7 |
26.7 ± 1.3 |
53.2 ± 2.7 |
104.5 ± 4.3 |
-0.55 ± 0.26 |
-0.14 ± 0.07 |
| RH9 |
-11.3 ± 7.4 |
25.9 ± 1.2 |
51.7 ± 2.7 |
104.7 ± 4.3 |
-0.44 ± 0.29 |
-0.11 ± 0.07 |
| RH10 |
-12.8 ± 7.1 |
27.2 ± 1.3 |
54.0 ± 2.8 |
104.4 ± 4.3 |
-0.48 ± 0.27 |
-0.12 ± 0.07 |
| Average |
-41.2 |
32.0 |
62.4 |
102.7 |
-1.3 |
-0.4 |
| Median |
-44.9 |
32.3 |
63.3 |
104.4 |
-1.1 |
-0.5 |
| Deviation |
24.2 |
7.3 |
12.6 |
2.5 |
0.8 |
0.2 |
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)
| 
