Database: Ace Shock Analysis
Event ID: 19993232358
Observation time: 11/19/1999 323.99906 2358 [UT]
|
|
General
Information (About, Top)
| Year |
1999 |
| Fractional day of year |
323.999062 |
| Arrival time of shock [seconds of day] |
86319.0 ± 16.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
0.034 |
| Y GSE location of spacecraft [Re] |
0.002 |
| Z GSE location of spacecraft [Re] |
-0.003 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0031 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0034 |
| Minimum chisq/dof for RH8,RH9,RH10 |
11.60, 13.25, 13.54 |
Event added to database
|
Sat Apr 30 21:45:01 2005
|
Event last processed
|
Tue May 3 13:09:47 2005
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.007 ± 0.000
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-444.3 ± 1.9 |
-477.9 ± 2.6 |
| Vy GSE [km/s] |
-3.7 ± 2.6 |
-11.2 ± 2.6 |
| Vz GSE [km/s] |
-15.6 ± 1.5 |
-6.6 ± 2.8 |
| Wi [km/s] |
37.1 ± 2.0 |
40.1 ± 2.0 |
| We [km/s] |
1174.5 ± 61.9 |
1268.6 ± 63.2 |
| Ni [n/cc] |
4.6 ± 0.3 |
6.9 ± 0.4 |
| Bx GSE [nT] |
-1.0 ± 0.5 |
-3.1 ± 0.7 |
| By GSE [nT] |
-3.5 ± 0.6 |
-5.3 ± 1.9 |
| Bz GSE [nT] |
-5.4 ± 0.2 |
-7.7 ± 0.8 |
Plasma Beta
|
0.320 ± 0.289
|
0.230 ± 0.255
|
Sound Speed [km/s]
|
47.95 ± 2.53
|
51.79 ± 2.58
|
Alfven Speed [km/s]
|
66.64 ± 4.96
|
83.99 ± 4.02
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.828 ± 0.403 |
0.338 ± 0.717 |
0.448 ± 0.415 |
26.62 ± 38.81 |
157.80 ± 49.01 |
| VC |
-0.944 ± 0.031 |
-0.212 ± 0.092 |
0.254 ± 0.248 |
14.70 ± 5.41 |
192.64 ± 5.59 |
| MX1 |
-0.773 ± 0.069 |
0.085 ± 0.122 |
0.629 ± 0.529 |
38.98 ± 6.24 |
173.73 ± 9.02 |
| MX2 |
-0.800 ± 0.070 |
0.039 ± 0.119 |
0.599 ± 0.514 |
36.82 ± 6.68 |
177.19 ± 8.52 |
| MX3 |
-0.838 ± 0.083 |
-0.016 ± 0.207 |
0.546 ± 0.484 |
33.08 ± 8.75 |
181.08 ± 14.19 |
| RH08 |
-0.998 ± 0.001 |
0.009 ± 0.022 |
0.061 ± 0.061 |
3.52 ± 1.04 |
179.50 ± 1.24 |
| RH09 |
-0.998 ± 0.004 |
0.026 ± 0.068 |
0.050 ± 0.050 |
2.88 ± 4.06 |
178.50 ± 3.91 |
| RH10 |
-0.998 ± 0.004 |
0.026 ± 0.068 |
0.050 ± 0.050 |
2.88 ± 4.06 |
178.50 ± 3.91 |
| Average |
-0.897 |
0.037 |
0.330 |
19.935 |
177.367 |
| Median |
-0.838 |
0.026 |
0.448 |
26.618 |
178.496 |
| Deviation |
0.097 |
0.150 |
0.255 |
15.782 |
9.637 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
65.1 ± 4.9 |
453.5 ± 16.8 |
1.49 ± 0.17 |
| VC |
86.9 ± 4.2 |
528.6 ± 19.4 |
1.49 ± 0.17 |
| MX1 |
63.8 ± 4.3 |
430.9 ± 17.6 |
1.49 ± 0.17 |
| MX2 |
67.1 ± 4.3 |
446.5 ± 18.0 |
1.49 ± 0.17 |
| MX3 |
72.0 ± 4.2 |
468.5 ± 18.4 |
1.49 ± 0.17 |
| RH08 |
84.2 ± 4.7 |
549.8 ± 18.6 |
1.49 ± 0.17 |
| RH09 |
84.2 ± 4.7 |
549.5 ± 18.4 |
1.49 ± 0.17 |
| RH10 |
84.2 ± 4.7 |
549.5 ± 18.4 |
1.49 ± 0.17 |
| Average |
75.9 |
497.1 |
1.49 |
| Median |
84.2 |
528.6 |
1.49 |
| Deviation |
9.9 |
52.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
93.9 ± 2.3 |
16.7 ± 0.3 |
28.1 ± 2.1 |
80.5 ± 3.0 |
5.64 ± 0.24 |
1.17 ± 0.06 |
| VC |
112.4 ± 1.6 |
2.1 ± 0.0 |
3.6 ± 0.3 |
82.2 ± 2.9 |
54.40 ± 1.64 |
1.37 ± 0.05 |
| MX1 |
97.7 ± 1.8 |
17.5 ± 0.4 |
29.5 ± 2.2 |
80.3 ± 3.0 |
5.57 ± 0.20 |
1.22 ± 0.06 |
| MX2 |
100.7 ± 1.8 |
15.3 ± 0.3 |
25.9 ± 1.9 |
80.8 ± 3.0 |
6.57 ± 0.23 |
1.25 ± 0.06 |
| MX3 |
104.7 ± 1.7 |
12.1 ± 0.2 |
20.6 ± 1.5 |
81.3 ± 3.0 |
8.65 ± 0.29 |
1.29 ± 0.06 |
| RH8 |
107.3 ± 1.9 |
3.9 ± 0.1 |
6.8 ± 0.5 |
82.1 ± 2.9 |
27.24 ± 0.96 |
1.31 ± 0.05 |
| RH9 |
106.8 ± 2.0 |
3.9 ± 0.1 |
6.8 ± 0.5 |
82.1 ± 2.9 |
27.15 ± 0.97 |
1.30 ± 0.05 |
| RH10 |
106.8 ± 2.0 |
3.9 ± 0.1 |
6.8 ± 0.5 |
82.1 ± 2.9 |
27.15 ± 0.97 |
1.30 ± 0.05 |
| Average |
103.8 |
9.4 |
16.0 |
81.4 |
20.3 |
1.3 |
| Median |
106.8 |
12.1 |
20.6 |
82.1 |
27.2 |
1.3 |
| Deviation |
6.0 |
6.6 |
11.1 |
0.8 |
17.2 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
64.6 ± 2.3 |
18.9 ± 0.7 |
35.4 ± 1.7 |
96.9 ± 3.3 |
3.43 ± 0.22 |
0.67 ± 0.03 |
| VC |
76.8 ± 2.4 |
2.3 ± 0.1 |
4.5 ± 0.2 |
98.7 ± 3.3 |
32.77 ± 1.80 |
0.78 ± 0.03 |
| MX1 |
66.7 ± 2.2 |
19.9 ± 0.7 |
37.1 ± 1.8 |
96.7 ± 3.3 |
3.36 ± 0.20 |
0.69 ± 0.03 |
| MX2 |
68.8 ± 2.1 |
17.4 ± 0.6 |
32.7 ± 1.6 |
97.2 ± 3.3 |
3.96 ± 0.23 |
0.71 ± 0.03 |
| MX3 |
71.6 ± 2.1 |
13.7 ± 0.5 |
26.0 ± 1.2 |
97.8 ± 3.3 |
5.22 ± 0.29 |
0.73 ± 0.03 |
| RH8 |
73.3 ± 2.5 |
4.5 ± 0.2 |
8.5 ± 0.4 |
98.6 ± 3.3 |
16.40 ± 0.98 |
0.74 ± 0.03 |
| RH9 |
73.0 ± 2.5 |
4.5 ± 0.2 |
8.5 ± 0.4 |
98.6 ± 3.3 |
16.36 ± 0.98 |
0.74 ± 0.03 |
| RH10 |
73.0 ± 2.5 |
4.5 ± 0.2 |
8.5 ± 0.4 |
98.6 ± 3.3 |
16.36 ± 0.98 |
0.74 ± 0.03 |
| Average |
71.0 |
10.7 |
20.1 |
97.9 |
12.2 |
0.7 |
| Median |
73.0 |
13.7 |
26.0 |
98.6 |
16.4 |
0.7 |
| Deviation |
4.0 |
7.5 |
13.9 |
0.9 |
10.3 |
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)
| 
