Database: Wind Shock Analysis
Event ID: 19982672320
Observation time: 09/24/1998 267.97266 2320 [UT]
|
|
General
Information (About, Top)
| Year |
1998 |
| Fractional day of year |
267.972656 |
| Arrival time of shock [seconds of day] |
84037.5 ± 6.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
183.440 |
| Y GSE location of spacecraft [Re] |
14.700 |
| Z GSE location of spacecraft [Re] |
-5.840 |
| Upstream plasma points selected for analysis |
0009 |
| Upstream field points selected for analysis |
0302 |
| Downstream plasma points selected for analysis |
0010
|
| Downstream field points selected for analysis |
0276 |
| Minimum chisq/dof for RH8,RH9,RH10 |
14.64, 22.54, 23.77 |
Event added to database
|
Mon Feb 14 11:07:03 2005
|
Event last processed
|
Mon Mar 30 18:01:55 2009
|
Method selected
|
RH09
|
Propagation delay to Earth [minutes]
|
22.967 ± 3.482
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-434.8 ± 2.8 |
-620.1 ± 19.3 |
| Vy GSE [km/s] |
19.0 ± 2.0 |
-37.1 ± 18.2 |
| Vz GSE [km/s] |
20.8 ± 5.8 |
-67.1 ± 14.3 |
| Wi [km/s] |
52.8 ± 1.0 |
103.2 ± 7.2 |
| We [km/s] |
1670.6 ± 33.1 |
3263.8 ± 227.2 |
| Ni [n/cc] |
7.7 ± 0.5 |
16.9 ± 2.4 |
| Bx GSE [nT] |
-6.4 ± 0.6 |
-15.3 ± 1.3 |
| By GSE [nT] |
12.7 ± 0.3 |
33.2 ± 2.8 |
| Bz GSE [nT] |
3.0 ± 0.8 |
15.6 ± 3.1 |
Plasma Beta
|
0.215 ± 0.214
|
0.242 ± 0.277
|
Sound Speed [km/s]
|
68.20 ± 1.35
|
133.24 ± 9.28
|
Alfven Speed [km/s]
|
114.45 ± 5.16
|
213.44 ± 19.04
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.525 ± 0.347 |
0.440 ± 0.379 |
-0.729 ± 0.559 |
-46.79 ± 20.28 |
140.04 ± 37.20 |
| VC |
-0.872 ± 0.037 |
-0.262 ± 0.071 |
-0.414 ± 0.388 |
-24.45 ± 4.40 |
196.76 ± 4.65 |
| MX1 |
-0.912 ± 0.031 |
-0.151 ± 0.065 |
-0.382 ± 0.363 |
-22.48 ± 4.48 |
189.42 ± 4.09 |
| MX2 |
-0.915 ± 0.029 |
-0.164 ± 0.058 |
-0.368 ± 0.351 |
-21.61 ± 4.22 |
190.16 ± 3.63 |
| MX3 |
-0.917 ± 0.028 |
-0.171 ± 0.056 |
-0.361 ± 0.344 |
-21.14 ± 4.15 |
190.54 ± 3.46 |
| RH08 |
-0.914 ± 0.004 |
-0.220 ± 0.009 |
-0.341 ± 0.327 |
-19.92 ± 0.56 |
193.54 ± 0.58 |
| RH09 |
-0.939 ± 0.024 |
-0.175 ± 0.070 |
-0.296 ± 0.287 |
-17.22 ± 4.00 |
190.53 ± 4.24 |
| RH10 |
-0.954 ± 0.021 |
-0.143 ± 0.070 |
-0.263 ± 0.256 |
-15.22 ± 4.00 |
188.52 ± 4.20 |
| Average |
-0.868 |
-0.106 |
-0.394 |
-23.605 |
184.939 |
| Median |
-0.914 |
-0.164 |
-0.361 |
-21.143 |
190.529 |
| Deviation |
0.141 |
0.224 |
0.143 |
9.812 |
18.332 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
62.4 ± 2.9 |
476.9 ± 64.5 |
2.17 ± 0.38 |
| VC |
86.1 ± 2.4 |
753.0 ± 95.1 |
2.17 ± 0.38 |
| MX1 |
79.1 ± 2.4 |
765.3 ± 95.1 |
2.17 ± 0.38 |
| MX2 |
79.5 ± 2.4 |
766.6 ± 95.3 |
2.17 ± 0.38 |
| MX3 |
79.7 ± 2.4 |
768.3 ± 95.3 |
2.17 ± 0.38 |
| RH08 |
82.1 ± 2.4 |
772.4 ± 95.6 |
2.17 ± 0.38 |
| RH09 |
78.6 ± 2.4 |
780.0 ± 95.5 |
2.17 ± 0.38 |
| RH10 |
76.2 ± 2.4 |
783.3 ± 95.1 |
2.17 ± 0.38 |
| Average |
78.0 |
733.2 |
2.17 |
| Median |
79.5 |
768.3 |
2.17 |
| Deviation |
6.9 |
104.0 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
255.6 ± 4.0 |
27.7 ± 0.3 |
53.0 ± 2.4 |
130.4 ± 4.1 |
9.22 ± 0.14 |
1.96 ± 0.07 |
| VC |
387.7 ± 4.0 |
3.9 ± 0.0 |
7.7 ± 0.3 |
133.2 ± 4.0 |
98.40 ± 1.17 |
2.91 ± 0.09 |
| MX1 |
379.8 ± 3.7 |
11.1 ± 0.1 |
21.6 ± 1.0 |
132.8 ± 4.0 |
34.34 ± 0.40 |
2.86 ± 0.09 |
| MX2 |
379.5 ± 3.7 |
10.7 ± 0.1 |
20.8 ± 0.9 |
132.8 ± 4.0 |
35.58 ± 0.42 |
2.86 ± 0.09 |
| MX3 |
380.4 ± 3.7 |
10.5 ± 0.1 |
20.4 ± 0.9 |
132.9 ± 4.0 |
36.36 ± 0.43 |
2.87 ± 0.09 |
| RH8 |
386.3 ± 3.7 |
8.1 ± 0.1 |
15.8 ± 0.7 |
133.0 ± 4.0 |
47.77 ± 0.56 |
2.91 ± 0.09 |
| RH9 |
381.2 ± 3.5 |
11.6 ± 0.1 |
22.6 ± 1.0 |
132.8 ± 4.0 |
32.78 ± 0.38 |
2.87 ± 0.08 |
| RH10 |
376.6 ± 3.4 |
14.1 ± 0.1 |
27.4 ± 1.2 |
132.5 ± 4.0 |
26.77 ± 0.31 |
2.84 ± 0.08 |
| Average |
365.9 |
12.2 |
23.7 |
132.5 |
40.2 |
2.8 |
| Median |
380.4 |
11.1 |
21.6 |
132.8 |
35.6 |
2.9 |
| Deviation |
44.7 |
6.9 |
13.2 |
0.9 |
25.9 |
0.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
118.9 ± 19.7 |
53.3 ± 2.4 |
98.9 ± 8.8 |
246.3 ± 14.8 |
2.23 ± 0.34 |
0.49 ± 0.09 |
| VC |
175.0 ± 18.4 |
7.6 ± 0.3 |
14.4 ± 1.3 |
251.9 ± 14.5 |
23.17 ± 2.79 |
0.70 ± 0.11 |
| MX1 |
168.7 ± 18.8 |
21.3 ± 0.9 |
40.2 ± 3.6 |
251.1 ± 14.5 |
7.95 ± 0.99 |
0.68 ± 0.11 |
| MX2 |
168.3 ± 18.8 |
20.5 ± 0.9 |
38.8 ± 3.5 |
251.2 ± 14.5 |
8.23 ± 1.03 |
0.68 ± 0.11 |
| MX3 |
169.2 ± 18.8 |
20.1 ± 0.9 |
38.0 ± 3.4 |
251.2 ± 14.5 |
8.43 ± 1.06 |
0.68 ± 0.11 |
| RH8 |
174.6 ± 18.8 |
15.5 ± 0.7 |
29.4 ± 2.6 |
251.6 ± 14.5 |
11.26 ± 1.39 |
0.70 ± 0.11 |
| RH9 |
171.3 ± 19.1 |
22.3 ± 1.0 |
42.2 ± 3.8 |
251.0 ± 14.5 |
7.68 ± 0.97 |
0.69 ± 0.11 |
| RH10 |
168.6 ± 19.2 |
27.0 ± 1.2 |
51.0 ± 4.6 |
250.6 ± 14.6 |
6.25 ± 0.80 |
0.68 ± 0.11 |
| Average |
164.3 |
23.5 |
44.1 |
250.6 |
9.4 |
0.7 |
| Median |
169.2 |
21.3 |
40.2 |
251.2 |
8.2 |
0.7 |
| Deviation |
18.6 |
13.3 |
24.6 |
1.8 |
6.1 |
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 Fri Jun 13 11:06:02 2014
Michael L Stevens
(mstevens@cfa.harvard.edu)
| 
