Database: Wind Shock Analysis
Event ID: 19981231702
Observation time: 05/03/1998 123.70995 1702 [UT]
|
|
General
Information (About, Top)
| Year |
1998 |
| Fractional day of year |
123.709948 |
| Arrival time of shock [seconds of day] |
61339.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
214.628 |
| Y GSE location of spacecraft [Re] |
6.192 |
| Z GSE location of spacecraft [Re] |
26.870 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0260 |
| Downstream plasma points selected for analysis |
0009
|
| Downstream field points selected for analysis |
0287 |
| Minimum chisq/dof for RH8,RH9,RH10 |
6.97, 12.21, 12.48 |
Event added to database
|
Sat Mar 12 17:53:05 2005
|
Event last processed
|
Mon Mar 30 23:24:01 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
45.049 ± 1.699
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-432.8 ± 2.5 |
-477.7 ± 4.8 |
| Vy GSE [km/s] |
9.7 ± 1.8 |
32.8 ± 3.0 |
| Vz GSE [km/s] |
-4.9 ± 3.9 |
-37.9 ± 2.4 |
| Wi [km/s] |
10.8 ± 0.7 |
32.3 ± 2.6 |
| We [km/s] |
342.0 ± 22.7 |
1022.7 ± 82.6 |
| Ni [n/cc] |
3.8 ± 0.4 |
12.0 ± 1.5 |
| Bx GSE [nT] |
2.3 ± 0.1 |
3.1 ± 0.5 |
| By GSE [nT] |
-2.1 ± 0.3 |
-4.3 ± 0.7 |
| Bz GSE [nT] |
-1.6 ± 0.2 |
-5.0 ± 0.4 |
Plasma Beta
|
0.073 ± 0.075
|
0.484 ± 0.482
|
Sound Speed [km/s]
|
13.96 ± 0.93
|
41.75 ± 3.37
|
Alfven Speed [km/s]
|
40.11 ± 1.86
|
46.54 ± 3.62
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.892 ± 0.122 |
0.330 ± 0.299 |
-0.308 ± 0.298 |
-17.92 ± 10.25 |
159.70 ± 19.19 |
| VC |
-0.744 ± 0.048 |
0.387 ± 0.074 |
-0.544 ± 0.483 |
-32.99 ± 3.65 |
152.55 ± 5.53 |
| MX1 |
-0.768 ± 0.062 |
0.437 ± 0.067 |
-0.468 ± 0.430 |
-27.91 ± 7.20 |
150.37 ± 4.51 |
| MX2 |
-0.769 ± 0.059 |
0.435 ± 0.066 |
-0.469 ± 0.431 |
-27.97 ± 6.67 |
150.50 ± 4.50 |
| MX3 |
-0.769 ± 0.058 |
0.434 ± 0.070 |
-0.470 ± 0.432 |
-28.02 ± 6.35 |
150.55 ± 4.87 |
| RH08 |
-0.972 ± 0.003 |
0.111 ± 0.014 |
-0.207 ± 0.204 |
-11.93 ± 0.71 |
173.48 ± 0.82 |
| RH09 |
-0.948 ± 0.022 |
0.193 ± 0.070 |
-0.251 ± 0.246 |
-14.56 ± 3.99 |
168.47 ± 4.20 |
| RH10 |
-0.948 ± 0.022 |
0.193 ± 0.070 |
-0.251 ± 0.246 |
-14.56 ± 3.99 |
168.47 ± 4.20 |
| Average |
-0.851 |
0.315 |
-0.371 |
-21.983 |
159.261 |
| Median |
-0.769 |
0.387 |
-0.308 |
-17.925 |
159.695 |
| Deviation |
0.098 |
0.131 |
0.130 |
8.074 |
9.626 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
49.7 ± 3.4 |
473.9 ± 11.2 |
3.21 ± 0.64 |
| VC |
61.4 ± 4.2 |
415.7 ± 10.7 |
3.21 ± 0.64 |
| MX1 |
56.0 ± 4.3 |
425.7 ± 10.8 |
3.21 ± 0.64 |
| MX2 |
56.1 ± 4.3 |
426.0 ± 10.8 |
3.21 ± 0.64 |
| MX3 |
56.2 ± 4.3 |
426.0 ± 10.8 |
3.21 ± 0.64 |
| RH08 |
52.3 ± 2.0 |
499.6 ± 11.1 |
3.21 ± 0.64 |
| RH09 |
51.2 ± 2.5 |
493.4 ± 11.2 |
3.21 ± 0.64 |
| RH10 |
51.2 ± 2.5 |
493.4 ± 11.2 |
3.21 ± 0.64 |
| Average |
54.3 |
456.7 |
3.21 |
| Median |
56.0 |
473.9 |
3.21 |
| Deviation |
3.9 |
36.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
83.0 ± 2.8 |
8.7 ± 0.6 |
26.0 ± 1.2 |
41.6 ± 1.9 |
9.56 ± 0.66 |
2.00 ± 0.10 |
| VC |
87.2 ± 3.2 |
6.4 ± 0.4 |
19.2 ± 0.9 |
42.0 ± 1.9 |
13.70 ± 0.89 |
2.08 ± 0.11 |
| MX1 |
86.7 ± 3.0 |
7.5 ± 0.5 |
22.4 ± 1.0 |
41.8 ± 1.9 |
11.63 ± 0.77 |
2.08 ± 0.11 |
| MX2 |
86.8 ± 3.0 |
7.5 ± 0.5 |
22.4 ± 1.0 |
41.8 ± 1.9 |
11.66 ± 0.77 |
2.08 ± 0.11 |
| MX3 |
86.8 ± 3.0 |
7.5 ± 0.5 |
22.3 ± 1.0 |
41.8 ± 1.9 |
11.68 ± 0.77 |
2.08 ± 0.11 |
| RH8 |
76.8 ± 2.9 |
8.2 ± 0.5 |
24.5 ± 1.1 |
41.7 ± 1.9 |
9.38 ± 0.67 |
1.85 ± 0.09 |
| RH9 |
79.9 ± 2.9 |
8.4 ± 0.5 |
25.1 ± 1.2 |
41.6 ± 1.9 |
9.52 ± 0.67 |
1.92 ± 0.10 |
| RH10 |
79.9 ± 2.9 |
8.4 ± 0.5 |
25.1 ± 1.2 |
41.6 ± 1.9 |
9.52 ± 0.67 |
1.92 ± 0.10 |
| Average |
83.4 |
7.8 |
23.4 |
41.7 |
10.8 |
2.0 |
| Median |
86.7 |
8.2 |
24.5 |
41.8 |
11.6 |
2.1 |
| Deviation |
4.1 |
0.8 |
2.2 |
0.1 |
1.6 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
25.1 ± 3.8 |
21.4 ± 1.7 |
30.1 ± 2.3 |
58.8 ± 4.5 |
1.18 ± 0.20 |
0.43 ± 0.07 |
| VC |
26.8 ± 3.2 |
15.3 ± 1.2 |
22.3 ± 1.7 |
60.6 ± 4.6 |
1.76 ± 0.25 |
0.44 ± 0.06 |
| MX1 |
26.7 ± 3.2 |
18.1 ± 1.4 |
26.0 ± 2.0 |
59.8 ± 4.6 |
1.48 ± 0.22 |
0.45 ± 0.06 |
| MX2 |
26.7 ± 3.2 |
18.1 ± 1.4 |
25.9 ± 2.0 |
59.9 ± 4.6 |
1.48 ± 0.22 |
0.45 ± 0.06 |
| MX3 |
26.7 ± 3.2 |
18.1 ± 1.4 |
25.9 ± 2.0 |
59.9 ± 4.6 |
1.49 ± 0.22 |
0.45 ± 0.06 |
| RH8 |
23.7 ± 4.4 |
20.1 ± 1.5 |
28.5 ± 2.2 |
59.2 ± 4.5 |
1.19 ± 0.23 |
0.40 ± 0.08 |
| RH9 |
24.5 ± 4.2 |
20.6 ± 1.6 |
29.1 ± 2.3 |
59.0 ± 4.5 |
1.19 ± 0.22 |
0.42 ± 0.08 |
| RH10 |
24.5 ± 4.2 |
20.6 ± 1.6 |
29.1 ± 2.3 |
59.0 ± 4.5 |
1.19 ± 0.22 |
0.42 ± 0.08 |
| Average |
25.6 |
19.0 |
27.1 |
59.5 |
1.4 |
0.4 |
| Median |
26.7 |
20.1 |
28.5 |
59.8 |
1.5 |
0.4 |
| Deviation |
1.3 |
2.0 |
2.6 |
0.6 |
0.2 |
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)
| 
