Database: Ace Shock Analysis
Event ID: 20052580828
Observation time: 09/15/2005 258.35347 0828 [UT]
|
|
General
Information (About, Top)
| Year |
2005 |
| Fractional day of year |
258.353471 |
| Arrival time of shock [seconds of day] |
30539.9 ± 60.0 |
| Shock type |
FF |
| Electron data availability |
0 |
| X GSE location of spacecraft [Re] |
227.452 |
| Y GSE location of spacecraft [Re] |
35.969 |
| Z GSE location of spacecraft [Re] |
-12.913 |
| Upstream plasma points selected for analysis |
0012 |
| Upstream field points selected for analysis |
0735 |
| Downstream plasma points selected for analysis |
0010
|
| Downstream field points selected for analysis |
0617 |
| Minimum chisq/dof for RH8,RH9,RH10 |
5.88, 18.28, 18.82 |
Event added to database
|
Fri Oct 10 16:35:36 2014
|
Event last processed
|
Wed Oct 15 11:49:19 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
38.644 ± 2.936
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-546.5 ± 9.0 |
-635.9 ± 10.4 |
| Vy GSE [km/s] |
-12.3 ± 4.8 |
-83.0 ± 6.1 |
| Vz GSE [km/s] |
0.2 ± 6.9 |
12.8 ± 16.1 |
| Wi [km/s] |
22.0 ± 2.5 |
81.5 ± 4.5 |
| We [km/s] |
697.3 ± 80.1 |
2578.7 ± 141.7 |
| Ni [n/cc] |
2.8 ± 0.5 |
6.1 ± 0.9 |
| Bx GSE [nT] |
1.1 ± 1.2 |
2.2 ± 1.4 |
| By GSE [nT] |
0.5 ± 0.8 |
-0.8 ± 0.9 |
| Bz GSE [nT] |
-0.7 ± 1.4 |
-8.1 ± 0.6 |
Plasma Beta
|
1.063 ± 0.505
|
1.216 ± 1.142
|
Sound Speed [km/s]
|
28.47 ± 3.27
|
105.27 ± 5.78
|
Alfven Speed [km/s]
|
29.34 ± 8.44
|
76.54 ± 10.54
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.933 ± 0.190 |
-0.354 ± 0.500 |
-0.068 ± 0.068 |
-3.90 ± 15.51 |
200.76 ± 30.68 |
| VC |
-0.777 ± 0.053 |
-0.620 ± 0.066 |
0.105 ± 0.105 |
6.05 ± 7.89 |
218.60 ± 4.82 |
| MX1 |
-0.768 ± 0.169 |
-0.640 ± 0.203 |
-0.018 ± 0.018 |
-1.02 ± 11.99 |
219.78 ± 15.15 |
| MX2 |
-0.757 ± 0.086 |
-0.654 ± 0.100 |
0.004 ± 0.004 |
0.21 ± 11.46 |
220.83 ± 7.56 |
| MX3 |
-0.751 ± 0.091 |
-0.660 ± 0.104 |
0.007 ± 0.007 |
0.43 ± 11.33 |
221.29 ± 7.94 |
| RH08 |
-0.592 ± 0.008 |
0.776 ± 0.006 |
-0.218 ± 0.214 |
-12.58 ± 0.38 |
127.35 ± 0.58 |
| RH09 |
-0.536 ± 0.060 |
0.815 ± 0.041 |
-0.218 ± 0.214 |
-12.58 ± 3.97 |
123.34 ± 4.16 |
| RH10 |
-0.995 ± 0.007 |
-0.096 ± 0.068 |
-0.006 ± 0.006 |
-0.32 ± 4.05 |
185.52 ± 3.94 |
| Average |
-0.764 |
-0.179 |
-0.051 |
-2.964 |
189.684 |
| Median |
-0.757 |
-0.354 |
-0.006 |
-0.320 |
218.595 |
| Deviation |
0.153 |
0.633 |
0.113 |
6.542 |
41.640 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
45.9 ± 31.6 |
715.0 ± 3.7 |
2.30 ± 0.50 |
| VC |
56.2 ± 35.2 |
648.0 ± 3.8 |
2.30 ± 0.50 |
| MX1 |
47.4 ± 29.3 |
643.3 ± 3.8 |
2.30 ± 0.50 |
| MX2 |
48.1 ± 28.6 |
637.2 ± 3.8 |
2.30 ± 0.50 |
| MX3 |
48.3 ± 28.4 |
634.3 ± 3.8 |
2.30 ± 0.50 |
| RH08 |
88.5 ± 11.0 |
307.5 ± 1.4 |
2.30 ± 0.50 |
| RH09 |
89.7 ± 9.5 |
261.1 ± 1.4 |
2.30 ± 0.50 |
| RH10 |
59.8 ± 34.7 |
721.7 ± 37.5 |
2.30 ± 0.50 |
| Average |
60.5 |
571.0 |
2.30 |
| Median |
56.2 |
643.3 |
2.30 |
| Deviation |
18.3 |
180.7 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
200.8 ± 8.1 |
14.8 ± 3.5 |
20.4 ± 5.9 |
38.5 ± 5.8 |
14.99 ± 7.07 |
5.31 ± 0.75 |
| VC |
215.6 ± 6.3 |
11.5 ± 2.7 |
16.3 ± 4.7 |
39.7 ± 6.1 |
20.70 ± 9.81 |
5.55 ± 0.89 |
| MX1 |
215.5 ± 6.5 |
14.3 ± 3.4 |
19.8 ± 5.7 |
38.7 ± 5.9 |
16.67 ± 8.11 |
5.68 ± 0.87 |
| MX2 |
215.6 ± 6.4 |
14.1 ± 3.3 |
19.6 ± 5.6 |
38.8 ± 5.9 |
16.93 ± 8.23 |
5.67 ± 0.88 |
| MX3 |
215.6 ± 6.3 |
14.0 ± 3.3 |
19.5 ± 5.6 |
38.8 ± 5.9 |
17.00 ± 8.26 |
5.67 ± 0.88 |
| RH8 |
-6.6 ± 8.0 |
0.5 ± 0.1 |
0.8 ± 0.2 |
41.3 ± 6.5 |
-18.93 ± 31.67 |
-0.19 ± 0.25 |
| RH9 |
-22.1 ± 7.7 |
0.1 ± 0.0 |
0.1 ± 0.0 |
41.3 ± 6.5 |
-265.56 ± 234.77 |
-0.57 ± 0.30 |
| RH10 |
176.5 ± 8.8 |
10.3 ± 2.4 |
14.8 ± 4.2 |
40.0 ± 6.2 |
18.74 ± 8.23 |
4.50 ± 0.64 |
| Average |
151.4 |
10.0 |
13.9 |
39.6 |
-22.4 |
4.0 |
| Median |
215.5 |
14.0 |
19.5 |
39.7 |
16.9 |
5.6 |
| Deviation |
103.2 |
6.2 |
8.5 |
1.1 |
99.1 |
2.7 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
93.3 ± 10.4 |
45.6 ± 4.6 |
53.2 ± 7.3 |
122.3 ± 5.4 |
2.05 ± 0.14 |
0.76 ± 0.07 |
| VC |
100.9 ± 11.2 |
35.5 ± 3.5 |
42.6 ± 5.9 |
125.6 ± 5.9 |
2.84 ± 0.19 |
0.80 ± 0.07 |
| MX1 |
101.8 ± 10.2 |
44.2 ± 4.4 |
51.8 ± 7.1 |
122.8 ± 5.5 |
2.31 ± 0.14 |
0.83 ± 0.07 |
| MX2 |
101.7 ± 10.3 |
43.5 ± 4.3 |
51.1 ± 7.0 |
123.0 ± 5.5 |
2.34 ± 0.15 |
0.83 ± 0.07 |
| MX3 |
101.7 ± 10.3 |
43.4 ± 4.3 |
50.9 ± 7.0 |
123.1 ± 5.5 |
2.35 ± 0.15 |
0.83 ± 0.07 |
| RH8 |
-1.9 ± 6.8 |
1.6 ± 0.1 |
2.0 ± 0.3 |
130.5 ± 6.5 |
-1.23 ± 4.16 |
-0.01 ± 0.05 |
| RH9 |
-9.6 ± 6.7 |
0.3 ± 0.0 |
0.4 ± 0.1 |
130.5 ± 6.5 |
-31.02 ± 21.21 |
-0.07 ± 0.05 |
| RH10 |
80.9 ± 10.6 |
31.9 ± 3.1 |
38.5 ± 5.3 |
126.5 ± 6.0 |
2.53 ± 0.21 |
0.64 ± 0.07 |
| Average |
71.1 |
30.7 |
36.3 |
125.5 |
-2.2 |
0.6 |
| Median |
100.9 |
43.4 |
50.9 |
125.6 |
2.3 |
0.8 |
| Deviation |
48.0 |
19.0 |
22.3 |
3.4 |
11.7 |
0.4 |
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)
| 
