Database: Wind Shock Analysis
Event ID: 19981212121
Observation time: 05/01/1998 121.88988 2121 [UT]
|
|
General
Information (About, Top)
| Year |
1998 |
| Fractional day of year |
121.889878 |
| Arrival time of shock [seconds of day] |
76885.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
215.910 |
| Y GSE location of spacecraft [Re] |
3.967 |
| Z GSE location of spacecraft [Re] |
25.927 |
| Upstream plasma points selected for analysis |
0009 |
| Upstream field points selected for analysis |
0270 |
| Downstream plasma points selected for analysis |
0006
|
| Downstream field points selected for analysis |
0231 |
| Minimum chisq/dof for RH8,RH9,RH10 |
3.18, 4.57, 4.70 |
Event added to database
|
Mon Feb 14 11:06:21 2005
|
Event last processed
|
Mon Mar 30 17:43:30 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
36.321 ± 1.049
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-461.4 ± 5.0 |
-569.2 ± 9.9 |
| Vy GSE [km/s] |
9.0 ± 10.9 |
-35.7 ± 9.3 |
| Vz GSE [km/s] |
-30.7 ± 8.5 |
-75.1 ± 18.3 |
| Wi [km/s] |
42.8 ± 1.5 |
70.1 ± 7.3 |
| We [km/s] |
1352.4 ± 47.7 |
2216.8 ± 229.4 |
| Ni [n/cc] |
4.6 ± 0.4 |
13.5 ± 2.4 |
| Bx GSE [nT] |
-5.7 ± 0.6 |
-7.0 ± 2.7 |
| By GSE [nT] |
3.8 ± 0.8 |
10.5 ± 1.3 |
| Bz GSE [nT] |
1.4 ± 0.9 |
5.6 ± 6.5 |
Plasma Beta
|
0.362 ± 0.354
|
0.615 ± 0.667
|
Sound Speed [km/s]
|
55.21 ± 1.95
|
90.50 ± 9.36
|
Alfven Speed [km/s]
|
71.93 ± 5.14
|
90.36 ± 4.14
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.970 ± 0.089 |
0.198 ± 0.246 |
0.143 ± 0.142 |
8.19 ± 30.25 |
168.46 ± 14.49 |
| VC |
-0.866 ± 0.064 |
-0.362 ± 0.116 |
-0.344 ± 0.330 |
-20.14 ± 7.69 |
202.71 ± 7.59 |
| MX1 |
-0.978 ± 0.063 |
-0.138 ± 0.419 |
-0.160 ± 0.158 |
-9.18 ± 8.43 |
188.02 ± 24.56 |
| MX2 |
-0.978 ± 0.066 |
-0.172 ± 0.367 |
-0.119 ± 0.119 |
-6.85 ± 7.14 |
190.00 ± 21.53 |
| MX3 |
-0.977 ± 0.068 |
-0.190 ± 0.344 |
-0.095 ± 0.095 |
-5.45 ± 7.24 |
190.98 ± 20.17 |
| RH08 |
-0.998 ± 0.002 |
-0.044 ± 0.020 |
-0.050 ± 0.050 |
-2.88 ± 1.49 |
182.51 ± 1.13 |
| RH09 |
-0.999 ± 0.003 |
-0.044 ± 0.069 |
-0.006 ± 0.006 |
-0.32 ± 4.05 |
182.51 ± 3.94 |
| RH10 |
-0.999 ± 0.003 |
-0.044 ± 0.069 |
-0.006 ± 0.006 |
-0.32 ± 4.05 |
182.51 ± 3.94 |
| Average |
-0.971 |
-0.099 |
-0.080 |
-4.618 |
185.960 |
| Median |
-0.978 |
-0.044 |
-0.050 |
-2.882 |
188.020 |
| Deviation |
0.044 |
0.161 |
0.141 |
8.208 |
9.771 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
23.2 ± 7.4 |
580.2 ± 15.5 |
2.84 ± 0.55 |
| VC |
64.3 ± 5.4 |
596.6 ± 20.5 |
2.84 ± 0.55 |
| MX1 |
47.1 ± 5.7 |
635.2 ± 19.3 |
2.84 ± 0.55 |
| MX2 |
47.8 ± 6.1 |
633.7 ± 18.6 |
2.84 ± 0.55 |
| MX3 |
48.2 ± 6.3 |
632.0 ± 18.2 |
2.84 ± 0.55 |
| RH08 |
39.6 ± 6.2 |
630.7 ± 18.0 |
2.84 ± 0.55 |
| RH09 |
38.6 ± 6.6 |
627.2 ± 17.3 |
2.84 ± 0.55 |
| RH10 |
38.6 ± 6.6 |
627.2 ± 17.3 |
2.84 ± 0.55 |
| Average |
43.4 |
620.3 |
2.84 |
| Median |
47.1 |
630.7 |
2.84 |
| Deviation |
11.7 |
20.4 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
135.3 ± 6.9 |
46.9 ± 0.7 |
66.1 ± 4.7 |
77.7 ± 3.7 |
2.88 ± 0.12 |
1.74 ± 0.10 |
| VC |
189.7 ± 2.8 |
19.4 ± 0.3 |
31.2 ± 2.2 |
88.7 ± 3.1 |
9.80 ± 0.18 |
2.14 ± 0.07 |
| MX1 |
180.5 ± 3.6 |
31.7 ± 0.4 |
49.0 ± 3.5 |
85.0 ± 3.2 |
5.69 ± 0.07 |
2.12 ± 0.07 |
| MX2 |
180.5 ± 3.5 |
31.2 ± 0.4 |
48.3 ± 3.5 |
85.2 ± 3.2 |
5.78 ± 0.07 |
2.12 ± 0.06 |
| MX3 |
179.9 ± 3.5 |
31.0 ± 0.4 |
48.0 ± 3.4 |
85.3 ± 3.2 |
5.81 ± 0.07 |
2.11 ± 0.06 |
| RH8 |
169.2 ± 4.6 |
36.8 ± 0.5 |
55.4 ± 4.0 |
83.0 ± 3.3 |
4.59 ± 0.08 |
2.04 ± 0.07 |
| RH9 |
166.5 ± 4.7 |
37.4 ± 0.5 |
56.2 ± 4.0 |
82.7 ± 3.3 |
4.45 ± 0.08 |
2.02 ± 0.07 |
| RH10 |
166.5 ± 4.7 |
37.4 ± 0.5 |
56.2 ± 4.0 |
82.7 ± 3.3 |
4.45 ± 0.08 |
2.02 ± 0.07 |
| Average |
171.0 |
34.0 |
51.3 |
83.8 |
5.4 |
2.0 |
| Median |
179.9 |
36.8 |
55.4 |
85.0 |
5.7 |
2.1 |
| Deviation |
16.6 |
7.9 |
10.1 |
3.2 |
2.0 |
0.1 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
46.0 ± 9.2 |
69.7 ± 3.1 |
83.1 ± 3.8 |
107.5 ± 5.0 |
0.66 ± 0.12 |
0.43 ± 0.07 |
| VC |
64.9 ± 11.8 |
28.2 ± 1.3 |
39.1 ± 1.8 |
125.0 ± 5.7 |
2.29 ± 0.34 |
0.52 ± 0.07 |
| MX1 |
61.9 ± 11.3 |
46.5 ± 2.1 |
61.6 ± 2.8 |
119.4 ± 5.4 |
1.33 ± 0.20 |
0.52 ± 0.07 |
| MX2 |
62.1 ± 10.3 |
45.7 ± 2.1 |
60.7 ± 2.8 |
119.7 ± 5.4 |
1.35 ± 0.18 |
0.52 ± 0.07 |
| MX3 |
61.8 ± 9.7 |
45.3 ± 2.0 |
60.3 ± 2.8 |
119.8 ± 5.4 |
1.36 ± 0.17 |
0.51 ± 0.06 |
| RH8 |
57.4 ± 10.4 |
54.1 ± 2.4 |
69.7 ± 3.2 |
116.1 ± 5.3 |
1.06 ± 0.16 |
0.49 ± 0.07 |
| RH9 |
56.6 ± 9.7 |
55.0 ± 2.5 |
70.6 ± 3.2 |
115.7 ± 5.3 |
1.03 ± 0.15 |
0.49 ± 0.07 |
| RH10 |
56.6 ± 9.7 |
55.0 ± 2.5 |
70.6 ± 3.2 |
115.7 ± 5.3 |
1.03 ± 0.15 |
0.49 ± 0.07 |
| Average |
58.4 |
50.0 |
64.4 |
117.4 |
1.3 |
0.5 |
| Median |
61.8 |
54.1 |
69.7 |
119.4 |
1.3 |
0.5 |
| Deviation |
5.9 |
11.8 |
12.7 |
5.0 |
0.5 |
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)
| 
