Database: Wind Shock Analysis
Event ID: 19982220031
Observation time: 08/10/1998 222.02172 0031 [UT]
|
|
General
Information (About, Top)
| Year |
1998 |
| Fractional day of year |
222.021719 |
| Arrival time of shock [seconds of day] |
1876.5 ± 6.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
77.715 |
| Y GSE location of spacecraft [Re] |
19.608 |
| Z GSE location of spacecraft [Re] |
-2.180 |
| Upstream plasma points selected for analysis |
0005 |
| Upstream field points selected for analysis |
0303 |
| Downstream plasma points selected for analysis |
0006
|
| Downstream field points selected for analysis |
0210 |
| Minimum chisq/dof for RH8,RH9,RH10 |
84.60, 109.92, 117.87 |
Event added to database
|
Mon Feb 14 11:06:49 2005
|
Event last processed
|
Mon Mar 30 17:54:23 2009
|
Method selected
|
MX2
|
Propagation delay to Earth [minutes]
|
-0.552 ± 426.399
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-395.3 ± 1.7 |
-437.7 ± 6.6 |
| Vy GSE [km/s] |
3.7 ± 3.1 |
-49.2 ± 11.6 |
| Vz GSE [km/s] |
7.3 ± 7.1 |
60.2 ± 9.7 |
| Wi [km/s] |
21.9 ± 3.3 |
39.8 ± 4.6 |
| We [km/s] |
691.6 ± 105.2 |
1257.1 ± 144.5 |
| Ni [n/cc] |
3.4 ± 0.1 |
3.3 ± 0.1 |
| Bx GSE [nT] |
-4.5 ± 0.1 |
-7.7 ± 0.6 |
| By GSE [nT] |
1.7 ± 0.2 |
7.4 ± 1.0 |
| Bz GSE [nT] |
0.9 ± 0.2 |
0.6 ± 0.6 |
Plasma Beta
|
0.151 ± 0.127
|
0.097 ± 0.088
|
Sound Speed [km/s]
|
28.23 ± 4.29
|
51.32 ± 5.90
|
Alfven Speed [km/s]
|
57.22 ± 2.69
|
128.81 ± 3.77
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
0.831 ± 0.070 |
0.429 ± 0.074 |
-0.355 ± 0.339 |
-20.79 ± 11.00 |
27.33 ± 4.61 |
| VC |
0.495 ± 0.056 |
0.612 ± 0.063 |
-0.617 ± 0.523 |
-38.06 ± 6.94 |
51.02 ± 2.89 |
| MX1 |
0.733 ± 0.062 |
0.372 ± 0.055 |
-0.570 ± 0.498 |
-34.73 ± 6.46 |
26.94 ± 3.67 |
| MX2 |
0.705 ± 0.061 |
0.358 ± 0.052 |
-0.612 ± 0.521 |
-37.74 ± 6.02 |
26.93 ± 3.49 |
| MX3 |
0.686 ± 0.063 |
0.348 ± 0.051 |
-0.639 ± 0.533 |
-39.72 ± 6.04 |
26.92 ± 3.37 |
| RH08 |
-0.995 ± 0.001 |
-0.061 ± 0.009 |
-0.073 ± 0.072 |
-4.16 ± 0.84 |
183.51 ± 0.54 |
| RH09 |
-0.936 ± 0.023 |
-0.124 ± 0.067 |
-0.330 ± 0.317 |
-19.25 ± 3.81 |
187.52 ± 4.12 |
| RH10 |
-0.975 ± 0.015 |
-0.043 ± 0.071 |
-0.218 ± 0.214 |
-12.58 ± 3.96 |
182.51 ± 4.17 |
| Average |
0.068 |
0.237 |
-0.427 |
-25.879 |
89.084 |
| Median |
0.686 |
0.358 |
-0.355 |
-20.786 |
51.015 |
| Deviation |
0.864 |
0.273 |
0.214 |
13.508 |
79.450 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
46.9 ± 2.7 |
735.1 ± 6107.8 |
0.96 ± 0.06 |
| VC |
68.8 ± 3.1 |
1044.3 ± 6682.0 |
0.96 ± 0.06 |
| MX1 |
49.2 ± 3.1 |
880.1 ± 6381.7 |
0.96 ± 0.06 |
| MX2 |
50.1 ± 3.2 |
905.5 ± 6394.3 |
0.96 ± 0.06 |
| MX3 |
50.8 ± 3.3 |
920.9 ± 6393.1 |
0.96 ± 0.06 |
| RH08 |
28.2 ± 1.9 |
-129.7 ± 3527.0 |
0.96 ± 0.06 |
| RH09 |
40.8 ± 2.2 |
64.1 ± 2555.7 |
0.96 ± 0.06 |
| RH10 |
32.7 ± 2.2 |
6.3 ± 2808.8 |
0.96 ± 0.06 |
| Average |
45.9 |
553.3 |
0.96 |
| Median |
49.2 |
880.1 |
0.96 |
| Deviation |
12.5 |
484.8 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
1064.5 ± 4.2 |
18.0 ± 2.2 |
39.1 ± 1.8 |
61.3 ± 2.3 |
59.90 ± 6.45 |
17.38 ± 0.64 |
| VC |
1242.3 ± 6.3 |
9.2 ± 1.0 |
20.7 ± 1.0 |
63.3 ± 2.5 |
136.19 ± 13.95 |
19.66 ± 0.74 |
| MX1 |
1172.5 ± 5.5 |
17.1 ± 2.0 |
37.4 ± 1.8 |
61.6 ± 2.4 |
69.33 ± 7.43 |
19.06 ± 0.69 |
| MX2 |
1187.4 ± 5.7 |
16.7 ± 2.0 |
36.7 ± 1.7 |
61.7 ± 2.4 |
71.70 ± 7.66 |
19.27 ± 0.70 |
| MX3 |
1195.4 ± 5.9 |
16.5 ± 2.0 |
36.1 ± 1.7 |
61.8 ± 2.4 |
73.34 ± 7.82 |
19.38 ± 0.70 |
| RH8 |
-522.5 ± 1.6 |
24.0 ± 3.2 |
50.4 ± 2.4 |
59.2 ± 2.4 |
-22.03 ± 2.53 |
-8.84 ± 0.35 |
| RH9 |
-303.0 ± 2.2 |
20.1 ± 2.5 |
43.4 ± 2.0 |
60.6 ± 2.3 |
-15.22 ± 1.60 |
-5.00 ± 0.21 |
| RH10 |
-377.4 ± 1.9 |
22.7 ± 3.0 |
48.2 ± 2.3 |
59.7 ± 2.3 |
-16.80 ± 1.86 |
-6.33 ± 0.26 |
| Average |
582.4 |
18.0 |
39.0 |
61.1 |
44.6 |
9.3 |
| Median |
1172.5 |
18.0 |
39.1 |
61.6 |
69.3 |
19.1 |
| Deviation |
818.0 |
4.6 |
9.1 |
1.3 |
56.8 |
13.3 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
1141.1 ± 11.7 |
33.5 ± 3.4 |
88.1 ± 2.6 |
134.6 ± 2.6 |
34.30 ± 3.24 |
8.48 ± 0.14 |
| VC |
1328.3 ± 13.1 |
17.3 ± 1.6 |
46.6 ± 1.4 |
137.7 ± 2.3 |
77.13 ± 6.95 |
9.65 ± 0.14 |
| MX1 |
1253.4 ± 11.7 |
32.0 ± 3.2 |
84.2 ± 2.5 |
135.0 ± 2.6 |
39.53 ± 3.72 |
9.28 ± 0.15 |
| MX2 |
1268.5 ± 11.7 |
31.3 ± 3.1 |
82.6 ± 2.4 |
135.2 ± 2.6 |
40.85 ± 3.84 |
9.39 ± 0.15 |
| MX3 |
1276.6 ± 11.6 |
30.8 ± 3.1 |
81.4 ± 2.4 |
135.3 ± 2.6 |
41.75 ± 3.92 |
9.44 ± 0.15 |
| RH8 |
-564.0 ± 7.1 |
44.3 ± 4.8 |
113.5 ± 3.3 |
131.4 ± 3.2 |
-12.85 ± 1.27 |
-4.29 ± 0.10 |
| RH9 |
-331.7 ± 7.5 |
37.4 ± 3.8 |
97.6 ± 2.9 |
133.6 ± 2.8 |
-8.93 ± 0.84 |
-2.48 ± 0.07 |
| RH10 |
-409.4 ± 6.7 |
42.1 ± 4.4 |
108.4 ± 3.2 |
132.2 ± 3.0 |
-9.81 ± 0.95 |
-3.10 ± 0.08 |
| Average |
620.4 |
33.6 |
87.8 |
134.4 |
25.2 |
4.5 |
| Median |
1253.4 |
33.5 |
88.1 |
135.0 |
39.5 |
9.3 |
| Deviation |
877.8 |
8.3 |
20.6 |
2.0 |
32.4 |
6.5 |
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)
| 
