Database: Ace Shock Analysis
Event ID: 20002011448
Observation time: 07/19/2000 201.61707 1448 [UT]
|
|
General
Information (About, Top)
| Year |
2000 |
| Fractional day of year |
201.617072 |
| Arrival time of shock [seconds of day] |
53315.0 ± 16.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
0.039 |
| 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 |
0032 |
| Downstream plasma points selected for analysis |
0009
|
| Downstream field points selected for analysis |
0036 |
| Minimum chisq/dof for RH8,RH9,RH10 |
4.92, 9.18, 9.35 |
Event added to database
|
Sat Apr 30 21:46:54 2005
|
Event last processed
|
Wed Oct 15 16:30:25 2014
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
0.006 ± 0.000
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-472.9 ± 5.6 |
-564.9 ± 11.9 |
| Vy GSE [km/s] |
-38.5 ± 3.1 |
-75.9 ± 11.6 |
| Vz GSE [km/s] |
20.9 ± 3.4 |
84.5 ± 12.2 |
| Wi [km/s] |
25.0 ± 1.7 |
40.9 ± 3.2 |
| We [km/s] |
790.4 ± 52.9 |
1293.4 ± 100.7 |
| Ni [n/cc] |
3.1 ± 0.3 |
9.9 ± 1.7 |
| Bx GSE [nT] |
2.3 ± 0.2 |
5.7 ± 0.8 |
| By GSE [nT] |
-3.1 ± 0.3 |
-6.1 ± 1.7 |
| Bz GSE [nT] |
-1.8 ± 0.3 |
7.5 ± 2.0 |
Plasma Beta
|
0.237 ± 0.251
|
0.294 ± 0.238
|
Sound Speed [km/s]
|
32.00 ± 2.10
|
53.53 ± 4.10
|
Alfven Speed [km/s]
|
51.57 ± 3.22
|
79.17 ± 8.58
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.559 ± 0.101 |
0.693 ± 0.104 |
0.456 ± 0.421 |
27.11 ± 13.90 |
128.89 ± 6.05 |
| VC |
-0.798 ± 0.065 |
-0.301 ± 0.118 |
0.522 ± 0.468 |
31.45 ± 5.56 |
200.63 ± 8.35 |
| MX1 |
-0.866 ± 0.256 |
0.296 ± 0.710 |
0.403 ± 0.380 |
23.77 ± 12.15 |
161.14 ± 46.96 |
| MX2 |
-0.948 ± 0.029 |
-0.111 ± 0.109 |
0.298 ± 0.289 |
17.35 ± 5.14 |
186.69 ± 6.61 |
| MX3 |
-0.943 ± 0.029 |
-0.205 ± 0.103 |
0.262 ± 0.256 |
15.22 ± 4.11 |
192.28 ± 6.23 |
| RH08 |
-0.981 ± 0.003 |
-0.147 ± 0.014 |
0.128 ± 0.128 |
7.38 ± 0.99 |
188.52 ± 0.83 |
| RH09 |
-0.963 ± 0.019 |
-0.268 ± 0.066 |
-0.039 ± 0.039 |
-2.24 ± 3.90 |
195.54 ± 3.96 |
| RH10 |
-0.963 ± 0.019 |
-0.268 ± 0.066 |
-0.039 ± 0.039 |
-2.24 ± 3.92 |
195.54 ± 3.95 |
| Average |
-0.878 |
-0.039 |
0.249 |
14.725 |
181.154 |
| Median |
-0.943 |
-0.147 |
0.298 |
17.347 |
192.276 |
| Deviation |
0.143 |
0.352 |
0.215 |
12.827 |
24.303 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
5.0 ± 2.4 |
322.1 ± 3.1 |
3.15 ± 0.53 |
| VC |
63.8 ± 3.9 |
575.9 ± 2.5 |
3.15 ± 0.53 |
| MX1 |
30.5 ± 4.5 |
542.8 ± 3.1 |
3.15 ± 0.53 |
| MX2 |
55.2 ± 4.6 |
623.6 ± 2.7 |
3.15 ± 0.53 |
| MX3 |
61.0 ± 4.6 |
626.3 ± 2.5 |
3.15 ± 0.53 |
| RH08 |
60.4 ± 4.7 |
631.6 ± 2.5 |
3.15 ± 0.53 |
| RH09 |
70.9 ± 4.7 |
614.4 ± 2.2 |
3.15 ± 0.53 |
| RH10 |
70.9 ± 4.7 |
614.4 ± 18.5 |
3.15 ± 0.53 |
| Average |
52.2 |
568.9 |
3.15 |
| Median |
61.0 |
614.4 |
3.15 |
| Deviation |
22.9 |
104.2 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
75.7 ± 2.1 |
31.8 ± 2.1 |
51.4 ± 3.2 |
51.7 ± 3.2 |
2.39 ± 0.13 |
1.47 ± 0.13 |
| VC |
176.1 ± 4.9 |
12.2 ± 0.5 |
22.8 ± 1.4 |
59.5 ± 2.3 |
14.43 ± 0.58 |
2.96 ± 0.17 |
| MX1 |
136.7 ± 4.1 |
25.8 ± 1.3 |
44.4 ± 2.8 |
55.0 ± 2.6 |
5.30 ± 0.21 |
2.49 ± 0.18 |
| MX2 |
165.0 ± 5.2 |
16.0 ± 0.7 |
29.4 ± 1.8 |
58.6 ± 2.3 |
10.31 ± 0.38 |
2.82 ± 0.18 |
| MX3 |
167.2 ± 5.4 |
13.5 ± 0.6 |
25.0 ± 1.6 |
59.2 ± 2.3 |
12.41 ± 0.46 |
2.83 ± 0.18 |
| RH8 |
159.6 ± 5.6 |
13.7 ± 0.6 |
25.4 ± 1.6 |
59.2 ± 2.3 |
11.64 ± 0.42 |
2.70 ± 0.18 |
| RH9 |
149.6 ± 5.8 |
9.0 ± 0.4 |
16.9 ± 1.1 |
60.1 ± 2.2 |
16.69 ± 0.61 |
2.49 ± 0.17 |
| RH10 |
149.6 ± 5.8 |
9.0 ± 0.4 |
16.9 ± 1.1 |
60.1 ± 2.2 |
16.69 ± 0.61 |
2.49 ± 0.17 |
| Average |
147.4 |
16.4 |
29.0 |
57.9 |
11.2 |
2.5 |
| Median |
159.6 |
13.7 |
25.4 |
59.2 |
12.4 |
2.7 |
| Deviation |
31.5 |
8.2 |
12.5 |
3.0 |
5.2 |
0.5 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
18.0 ± 16.0 |
53.0 ± 3.7 |
78.9 ± 8.5 |
79.6 ± 8.2 |
0.35 ± 0.30 |
0.23 ± 0.21 |
| VC |
56.2 ± 6.3 |
19.8 ± 0.6 |
34.9 ± 3.8 |
93.8 ± 5.3 |
2.84 ± 0.35 |
0.60 ± 0.06 |
| MX1 |
38.9 ± 13.5 |
42.2 ± 1.7 |
68.2 ± 7.4 |
86.0 ± 6.1 |
0.92 ± 0.32 |
0.45 ± 0.15 |
| MX2 |
51.6 ± 9.1 |
26.0 ± 0.8 |
45.2 ± 4.9 |
92.2 ± 5.4 |
1.98 ± 0.35 |
0.56 ± 0.09 |
| MX3 |
53.2 ± 8.0 |
21.9 ± 0.7 |
38.4 ± 4.2 |
93.3 ± 5.3 |
2.43 ± 0.37 |
0.57 ± 0.07 |
| RH8 |
52.5 ± 9.1 |
22.3 ± 0.7 |
39.1 ± 4.2 |
93.2 ± 5.3 |
2.36 ± 0.40 |
0.56 ± 0.08 |
| RH9 |
50.6 ± 8.4 |
14.6 ± 0.5 |
25.9 ± 2.8 |
94.8 ± 5.2 |
3.47 ± 0.54 |
0.53 ± 0.07 |
| RH10 |
50.6 ± 8.4 |
14.6 ± 0.5 |
25.9 ± 2.8 |
94.8 ± 5.2 |
3.47 ± 0.54 |
0.53 ± 0.07 |
| Average |
46.5 |
26.8 |
44.6 |
91.0 |
2.2 |
0.5 |
| Median |
51.6 |
22.3 |
39.1 |
93.3 |
2.4 |
0.6 |
| Deviation |
12.5 |
13.7 |
19.2 |
5.4 |
1.1 |
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)
| 
