Database: Wind Shock Analysis
Event ID: 19990480712
Observation time: 02/17/1999 48.30016 0712 [UT]
|
|
General
Information (About, Top)
| Year |
1999 |
| Fractional day of year |
48.300156 |
| Arrival time of shock [seconds of day] |
25933.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
-13.007 |
| Y GSE location of spacecraft [Re] |
-66.816 |
| Z GSE location of spacecraft [Re] |
-22.072 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0212 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0207 |
| Minimum chisq/dof for RH8,RH9,RH10 |
4.38, 6.53, 6.73 |
Event added to database
|
Mon Feb 14 11:07:38 2005
|
Event last processed
|
Mon Mar 30 18:29:09 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
-2.600 ± 0.454
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-465.1 ± 3.4 |
-502.8 ± 4.0 |
| Vy GSE [km/s] |
-16.5 ± 14.8 |
-23.4 ± 3.1 |
| Vz GSE [km/s] |
-1.6 ± 4.6 |
-4.9 ± 4.3 |
| Wi [km/s] |
26.8 ± 2.3 |
32.6 ± 0.8 |
| We [km/s] |
847.6 ± 72.1 |
1031.9 ± 25.6 |
| Ni [n/cc] |
6.1 ± 0.4 |
9.9 ± 0.6 |
| Bx GSE [nT] |
0.0 ± 0.4 |
0.6 ± 0.6 |
| By GSE [nT] |
6.5 ± 0.2 |
10.2 ± 0.7 |
| Bz GSE [nT] |
-2.6 ± 0.4 |
-5.2 ± 1.1 |
Plasma Beta
|
0.187 ± 0.182
|
0.166 ± 0.171
|
Sound Speed [km/s]
|
34.60 ± 2.94
|
42.13 ± 1.04
|
Alfven Speed [km/s]
|
62.40 ± 1.88
|
80.23 ± 2.99
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.923 ± 0.291 |
0.361 ± 0.720 |
0.133 ± 0.132 |
7.65 ± 34.42 |
158.65 ± 44.67 |
| VC |
-0.985 ± 0.043 |
-0.148 ± 0.270 |
-0.092 ± 0.091 |
-5.25 ± 8.68 |
188.57 ± 15.68 |
| MX1 |
-0.984 ± 0.023 |
0.056 ± 0.191 |
-0.169 ± 0.167 |
-9.70 ± 6.83 |
176.73 ± 11.15 |
| MX2 |
-0.981 ± 0.025 |
0.018 ± 0.183 |
-0.194 ± 0.191 |
-11.17 ± 7.28 |
178.93 ± 10.69 |
| MX3 |
-0.975 ± 0.034 |
-0.023 ± 0.204 |
-0.222 ± 0.219 |
-12.84 ± 8.75 |
181.36 ± 11.98 |
| RH08 |
-0.994 ± 0.002 |
0.026 ± 0.014 |
-0.106 ± 0.106 |
-6.09 ± 1.16 |
178.50 ± 0.79 |
| RH09 |
-0.992 ± 0.009 |
0.009 ± 0.070 |
-0.128 ± 0.128 |
-7.38 ± 4.01 |
179.50 ± 4.07 |
| RH10 |
-0.992 ± 0.009 |
0.009 ± 0.070 |
-0.128 ± 0.128 |
-7.38 ± 4.01 |
179.50 ± 4.07 |
| Average |
-0.978 |
0.038 |
-0.113 |
-6.522 |
177.717 |
| Median |
-0.984 |
0.018 |
-0.128 |
-7.382 |
179.499 |
| Deviation |
0.023 |
0.144 |
0.109 |
6.277 |
8.484 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
73.7 ± 3.6 |
507.1 ± 20.6 |
1.62 ± 0.17 |
| VC |
83.8 ± 2.8 |
563.2 ± 16.3 |
1.62 ± 0.17 |
| MX1 |
83.7 ± 2.8 |
555.3 ± 17.9 |
1.62 ± 0.17 |
| MX2 |
85.2 ± 2.7 |
555.6 ± 17.5 |
1.62 ± 0.17 |
| MX3 |
86.8 ± 2.6 |
553.9 ± 17.0 |
1.62 ± 0.17 |
| RH08 |
86.6 ± 2.9 |
560.2 ± 17.8 |
1.62 ± 0.17 |
| RH09 |
87.1 ± 2.8 |
559.9 ± 17.6 |
1.62 ± 0.17 |
| RH10 |
87.1 ± 2.8 |
559.9 ± 17.6 |
1.62 ± 0.17 |
| Average |
84.2 |
551.9 |
1.62 |
| Median |
86.6 |
559.9 |
1.62 |
| Deviation |
4.5 |
18.4 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
83.9 ± 5.1 |
8.5 ± 0.6 |
17.5 ± 0.5 |
70.9 ± 1.7 |
9.86 ± 0.75 |
1.18 ± 0.09 |
| VC |
102.6 ± 4.4 |
3.3 ± 0.2 |
6.8 ± 0.2 |
71.3 ± 1.8 |
31.46 ± 2.20 |
1.44 ± 0.06 |
| MX1 |
98.2 ± 2.7 |
3.3 ± 0.2 |
6.9 ± 0.2 |
71.3 ± 1.8 |
29.64 ± 1.70 |
1.38 ± 0.05 |
| MX2 |
99.4 ± 2.7 |
2.5 ± 0.2 |
5.2 ± 0.2 |
71.4 ± 1.8 |
39.26 ± 2.27 |
1.39 ± 0.05 |
| MX3 |
99.8 ± 2.8 |
1.7 ± 0.1 |
3.5 ± 0.1 |
71.4 ± 1.8 |
58.94 ± 3.47 |
1.40 ± 0.04 |
| RH8 |
98.2 ± 2.9 |
1.8 ± 0.1 |
3.7 ± 0.1 |
71.4 ± 1.8 |
55.47 ± 3.29 |
1.38 ± 0.05 |
| RH9 |
98.6 ± 2.9 |
1.5 ± 0.1 |
3.2 ± 0.1 |
71.4 ± 1.8 |
64.32 ± 3.83 |
1.38 ± 0.05 |
| RH10 |
98.6 ± 2.9 |
1.5 ± 0.1 |
3.2 ± 0.1 |
71.4 ± 1.8 |
64.32 ± 3.83 |
1.38 ± 0.05 |
| Average |
97.4 |
3.0 |
6.2 |
71.3 |
44.2 |
1.4 |
| Median |
98.6 |
2.5 |
5.2 |
71.4 |
55.5 |
1.4 |
| Deviation |
5.6 |
2.3 |
4.8 |
0.2 |
19.8 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
52.0 ± 4.7 |
10.5 ± 0.2 |
22.5 ± 0.8 |
90.0 ± 2.8 |
4.95 ± 0.52 |
0.58 ± 0.06 |
| VC |
64.2 ± 3.7 |
4.0 ± 0.1 |
8.7 ± 0.3 |
90.5 ± 2.8 |
15.90 ± 1.21 |
0.71 ± 0.05 |
| MX1 |
60.9 ± 4.3 |
4.1 ± 0.1 |
8.8 ± 0.3 |
90.5 ± 2.8 |
14.87 ± 1.33 |
0.67 ± 0.06 |
| MX2 |
61.9 ± 4.3 |
3.1 ± 0.1 |
6.7 ± 0.3 |
90.6 ± 2.8 |
19.77 ± 1.73 |
0.68 ± 0.06 |
| MX3 |
62.2 ± 4.2 |
2.1 ± 0.0 |
4.5 ± 0.2 |
90.6 ± 2.8 |
29.69 ± 2.55 |
0.69 ± 0.06 |
| RH8 |
60.5 ± 4.2 |
2.2 ± 0.1 |
4.7 ± 0.2 |
90.6 ± 2.8 |
27.66 ± 2.42 |
0.67 ± 0.06 |
| RH9 |
60.9 ± 4.2 |
1.9 ± 0.0 |
4.1 ± 0.2 |
90.6 ± 2.8 |
32.10 ± 2.79 |
0.67 ± 0.06 |
| RH10 |
60.9 ± 4.2 |
1.9 ± 0.0 |
4.1 ± 0.2 |
90.6 ± 2.8 |
32.10 ± 2.79 |
0.67 ± 0.06 |
| Average |
60.4 |
3.7 |
8.0 |
90.5 |
22.1 |
0.7 |
| Median |
60.9 |
3.1 |
6.7 |
90.6 |
27.7 |
0.7 |
| Deviation |
3.6 |
2.9 |
6.2 |
0.2 |
9.8 |
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 Fri Jun 13 11:06:02 2014
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
