Database: Wind Shock Analysis
Event ID: 19982380640
Observation time: 08/26/1998 238.27811 0640 [UT]
|
|
General
Information (About, Top)
| Year |
1998 |
| Fractional day of year |
238.278108 |
| Arrival time of shock [seconds of day] |
24028.5 ± 9.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
117.050 |
| Y GSE location of spacecraft [Re] |
-21.570 |
| Z GSE location of spacecraft [Re] |
-7.610 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0262 |
| Downstream plasma points selected for analysis |
0008
|
| Downstream field points selected for analysis |
0304 |
| Minimum chisq/dof for RH8,RH9,RH10 |
12.54, 35.90, 37.10 |
Event added to database
|
Mon Feb 14 11:06:59 2005
|
Event last processed
|
Mon Mar 30 17:59:54 2009
|
Method selected
|
RH09
|
Propagation delay to Earth [minutes]
|
13.276 ± 2.971
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-463.5 ± 4.4 |
-622.6 ± 17.1 |
| Vy GSE [km/s] |
-2.3 ± 2.5 |
-3.8 ± 7.6 |
| Vz GSE [km/s] |
23.4 ± 4.4 |
-182.0 ± 14.5 |
| Wi [km/s] |
42.6 ± 1.6 |
126.6 ± 11.9 |
| We [km/s] |
1346.8 ± 49.2 |
4004.2 ± 377.1 |
| Ni [n/cc] |
4.9 ± 0.4 |
14.0 ± 0.7 |
| Bx GSE [nT] |
0.2 ± 0.2 |
-7.8 ± 6.5 |
| By GSE [nT] |
6.4 ± 0.2 |
10.3 ± 7.4 |
| Bz GSE [nT] |
-1.0 ± 0.4 |
10.1 ± 3.9 |
Plasma Beta
|
0.439 ± 0.419
|
1.344 ± 1.381
|
Sound Speed [km/s]
|
54.98 ± 2.01
|
163.47 ± 15.39
|
Alfven Speed [km/s]
|
64.75 ± 4.04
|
111.14 ± 13.00
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.552 ± 0.918 |
0.789 ± 0.650 |
-0.270 ± 0.263 |
-15.65 ± 30.48 |
124.98 ± 66.36 |
| VC |
-0.613 ± 0.059 |
-0.003 ± 0.029 |
-0.790 ± 0.558 |
-52.20 ± 4.26 |
180.30 ± 2.76 |
| MX1 |
-0.755 ± 0.191 |
0.184 ± 0.673 |
-0.630 ± 0.529 |
-39.03 ± 9.29 |
166.33 ± 51.03 |
| MX2 |
-0.732 ± 0.066 |
0.194 ± 0.138 |
-0.653 ± 0.539 |
-40.76 ± 5.00 |
165.14 ± 10.70 |
| MX3 |
-0.763 ± 0.077 |
0.126 ± 0.136 |
-0.634 ± 0.531 |
-39.31 ± 6.78 |
170.64 ± 10.16 |
| RH08 |
-0.655 ± 0.010 |
0.040 ± 0.009 |
-0.754 ± 0.561 |
-48.95 ± 0.74 |
176.49 ± 0.82 |
| RH09 |
-0.822 ± 0.040 |
0.138 ± 0.070 |
-0.553 ± 0.488 |
-33.58 ± 3.97 |
170.47 ± 4.84 |
| RH10 |
-0.507 ± 0.060 |
0.771 ± 0.045 |
-0.385 ± 0.365 |
-22.67 ± 4.03 |
123.34 ± 4.34 |
| Average |
-0.675 |
0.280 |
-0.584 |
-36.520 |
159.712 |
| Median |
-0.655 |
0.184 |
-0.630 |
-39.032 |
170.474 |
| Deviation |
0.111 |
0.316 |
0.177 |
12.357 |
22.499 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
36.7 ± 1.9 |
464.7 ± 15.5 |
2.88 ± 0.31 |
| VC |
84.2 ± 3.1 |
667.8 ± 27.1 |
2.88 ± 0.31 |
| MX1 |
75.2 ± 2.7 |
718.7 ± 25.7 |
2.88 ± 0.31 |
| MX2 |
74.4 ± 2.7 |
708.0 ± 25.8 |
2.88 ± 0.31 |
| MX3 |
78.6 ± 2.7 |
726.2 ± 25.9 |
2.88 ± 0.31 |
| RH08 |
82.2 ± 3.0 |
687.4 ± 26.8 |
2.88 ± 0.31 |
| RH09 |
78.7 ± 2.5 |
747.2 ± 25.5 |
2.88 ± 0.31 |
| RH10 |
36.5 ± 2.3 |
466.1 ± 17.5 |
2.88 ± 0.31 |
| Average |
68.3 |
648.3 |
2.88 |
| Median |
78.6 |
708.0 |
2.88 |
| Deviation |
19.8 |
115.4 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
217.0 ± 3.4 |
37.3 ± 1.0 |
51.9 ± 3.2 |
76.4 ± 2.8 |
5.82 ± 0.21 |
2.84 ± 0.13 |
| VC |
402.2 ± 3.8 |
4.2 ± 0.1 |
6.5 ± 0.4 |
84.9 ± 2.9 |
95.64 ± 3.02 |
4.74 ± 0.18 |
| MX1 |
383.9 ± 3.9 |
10.7 ± 0.3 |
16.5 ± 1.0 |
84.3 ± 2.9 |
35.78 ± 1.15 |
4.56 ± 0.17 |
| MX2 |
384.4 ± 3.9 |
11.4 ± 0.3 |
17.5 ± 1.1 |
84.2 ± 2.9 |
33.80 ± 1.09 |
4.57 ± 0.18 |
| MX3 |
387.4 ± 3.9 |
8.3 ± 0.2 |
12.8 ± 0.8 |
84.6 ± 2.9 |
46.55 ± 1.49 |
4.58 ± 0.17 |
| RH8 |
401.3 ± 3.8 |
5.7 ± 0.2 |
8.8 ± 0.6 |
84.8 ± 2.9 |
70.30 ± 2.23 |
4.74 ± 0.18 |
| RH9 |
379.6 ± 3.9 |
8.2 ± 0.2 |
12.7 ± 0.8 |
84.6 ± 2.9 |
46.26 ± 1.49 |
4.49 ± 0.17 |
| RH10 |
241.9 ± 3.6 |
37.4 ± 1.0 |
52.0 ± 3.2 |
76.3 ± 2.8 |
6.47 ± 0.23 |
3.17 ± 0.15 |
| Average |
349.7 |
15.4 |
22.3 |
82.5 |
42.6 |
4.2 |
| Median |
384.4 |
10.7 |
16.5 |
84.6 |
46.3 |
4.6 |
| Deviation |
75.0 |
13.8 |
18.6 |
3.8 |
30.2 |
0.8 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
74.9 ± 5.9 |
80.3 ± 8.4 |
89.1 ± 10.4 |
180.9 ± 15.3 |
0.94 ± 0.09 |
0.42 ± 0.04 |
| VC |
142.5 ± 9.6 |
9.2 ± 0.9 |
11.2 ± 1.3 |
197.7 ± 16.7 |
15.60 ± 1.75 |
0.73 ± 0.08 |
| MX1 |
134.8 ± 9.6 |
23.5 ± 2.3 |
28.3 ± 3.3 |
196.6 ± 16.6 |
5.78 ± 0.57 |
0.69 ± 0.07 |
| MX2 |
134.1 ± 9.5 |
24.9 ± 2.5 |
30.0 ± 3.5 |
196.4 ± 16.6 |
5.43 ± 0.55 |
0.69 ± 0.07 |
| MX3 |
136.1 ± 9.9 |
18.2 ± 1.8 |
22.0 ± 2.6 |
197.1 ± 16.7 |
7.52 ± 0.74 |
0.69 ± 0.07 |
| RH8 |
142.3 ± 9.6 |
12.5 ± 1.2 |
15.1 ± 1.8 |
197.6 ± 16.7 |
11.47 ± 1.24 |
0.72 ± 0.08 |
| RH9 |
135.6 ± 10.5 |
18.0 ± 1.8 |
21.7 ± 2.5 |
197.1 ± 16.7 |
7.59 ± 0.71 |
0.69 ± 0.07 |
| RH10 |
83.1 ± 6.4 |
80.6 ± 8.4 |
89.3 ± 10.4 |
180.8 ± 15.3 |
1.04 ± 0.12 |
0.46 ± 0.04 |
| Average |
122.9 |
33.4 |
38.3 |
193.0 |
6.9 |
0.6 |
| Median |
135.6 |
23.5 |
28.3 |
197.1 |
7.5 |
0.7 |
| Deviation |
27.4 |
29.5 |
32.0 |
7.5 |
4.9 |
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)
| 
