Database: Wind Shock Analysis
Event ID: 19991380032
Observation time: 05/18/1999 138.02269 0032 [UT]
|
|
General
Information (About, Top)
| Year |
1999 |
| Fractional day of year |
138.022691 |
| Arrival time of shock [seconds of day] |
1960.5 ± 6.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
104.586 |
| Y GSE location of spacecraft [Re] |
-31.353 |
| Z GSE location of spacecraft [Re] |
-9.470 |
| Upstream plasma points selected for analysis |
0008 |
| Upstream field points selected for analysis |
0250 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0211 |
| Minimum chisq/dof for RH8,RH9,RH10 |
9.55, 15.28, 15.70 |
Event added to database
|
Mon Feb 14 11:07:57 2005
|
Event last processed
|
Mon Mar 30 18:37:51 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
25.501 ± 0.216
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-341.3 ± 0.6 |
-408.5 ± 1.7 |
| Vy GSE [km/s] |
-17.4 ± 1.2 |
-22.0 ± 1.7 |
| Vz GSE [km/s] |
9.8 ± 2.3 |
11.8 ± 2.3 |
| Wi [km/s] |
23.4 ± 1.3 |
48.7 ± 1.4 |
| We [km/s] |
739.8 ± 42.3 |
1540.8 ± 43.8 |
| Ni [n/cc] |
8.0 ± 0.5 |
23.2 ± 0.9 |
| Bx GSE [nT] |
-5.1 ± 0.1 |
-5.6 ± 0.4 |
| By GSE [nT] |
2.2 ± 0.1 |
6.8 ± 0.6 |
| Bz GSE [nT] |
-0.3 ± 0.5 |
-1.6 ± 0.3 |
Plasma Beta
|
0.297 ± 0.281
|
1.471 ± 1.538
|
Sound Speed [km/s]
|
30.20 ± 1.73
|
62.90 ± 1.79
|
Alfven Speed [km/s]
|
43.13 ± 1.92
|
40.65 ± 3.24
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.994 ± 0.013 |
-0.075 ± 0.087 |
0.080 ± 0.080 |
4.61 ± 8.34 |
184.31 ± 5.04 |
| VC |
-0.997 ± 0.002 |
-0.067 ± 0.028 |
0.030 ± 0.030 |
1.75 ± 2.57 |
183.87 ± 1.60 |
| MX1 |
-0.994 ± 0.007 |
-0.103 ± 0.062 |
0.039 ± 0.039 |
2.22 ± 2.82 |
185.93 ± 3.59 |
| MX2 |
-0.994 ± 0.007 |
-0.104 ± 0.061 |
0.038 ± 0.038 |
2.17 ± 2.80 |
185.95 ± 3.49 |
| MX3 |
-0.994 ± 0.007 |
-0.104 ± 0.060 |
0.038 ± 0.038 |
2.15 ± 2.83 |
185.95 ± 3.45 |
| RH08 |
-0.999 ± 0.000 |
0.044 ± 0.000 |
0.006 ± 0.006 |
0.32 ± 0.64 |
177.49 ± 0.00 |
| RH09 |
-0.999 ± 0.003 |
0.044 ± 0.068 |
0.006 ± 0.006 |
0.32 ± 4.05 |
177.49 ± 3.93 |
| RH10 |
-0.999 ± 0.003 |
0.044 ± 0.069 |
0.006 ± 0.006 |
0.32 ± 4.05 |
177.49 ± 3.94 |
| Average |
-0.996 |
-0.040 |
0.030 |
1.731 |
182.312 |
| Median |
-0.994 |
-0.067 |
0.038 |
2.153 |
184.311 |
| Deviation |
0.003 |
0.071 |
0.025 |
1.456 |
4.066 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
29.6 ± 1.5 |
444.0 ± 4.0 |
2.87 ± 0.21 |
| VC |
28.6 ± 1.2 |
444.6 ± 3.9 |
2.87 ± 0.21 |
| MX1 |
30.7 ± 1.2 |
444.1 ± 3.9 |
2.87 ± 0.21 |
| MX2 |
30.7 ± 1.2 |
444.1 ± 3.9 |
2.87 ± 0.21 |
| MX3 |
30.7 ± 1.2 |
444.1 ± 3.9 |
2.87 ± 0.21 |
| RH08 |
22.2 ± 1.0 |
442.4 ± 3.8 |
2.87 ± 0.21 |
| RH09 |
22.2 ± 1.0 |
442.4 ± 3.8 |
2.87 ± 0.21 |
| RH10 |
22.2 ± 1.0 |
442.4 ± 3.8 |
2.87 ± 0.21 |
| Average |
27.1 |
443.5 |
2.87 |
| Median |
29.6 |
444.1 |
2.87 |
| Deviation |
4.1 |
0.9 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
102.7 ± 0.6 |
24.2 ± 1.0 |
37.5 ± 1.7 |
46.8 ± 1.6 |
4.26 ± 0.19 |
2.20 ± 0.07 |
| VC |
102.8 ± 0.6 |
24.5 ± 1.0 |
37.9 ± 1.7 |
46.6 ± 1.6 |
4.20 ± 0.19 |
2.21 ± 0.07 |
| MX1 |
102.7 ± 0.6 |
23.8 ± 1.0 |
37.1 ± 1.6 |
47.0 ± 1.6 |
4.32 ± 0.19 |
2.19 ± 0.07 |
| MX2 |
102.7 ± 0.6 |
23.8 ± 1.0 |
37.1 ± 1.6 |
47.0 ± 1.6 |
4.32 ± 0.19 |
2.19 ± 0.07 |
| MX3 |
102.7 ± 0.6 |
23.8 ± 1.0 |
37.1 ± 1.6 |
47.0 ± 1.6 |
4.32 ± 0.19 |
2.19 ± 0.07 |
| RH8 |
102.2 ± 0.6 |
26.4 ± 1.2 |
39.9 ± 1.8 |
45.6 ± 1.7 |
3.87 ± 0.18 |
2.25 ± 0.07 |
| RH9 |
102.2 ± 0.6 |
26.4 ± 1.2 |
39.9 ± 1.8 |
45.6 ± 1.7 |
3.87 ± 0.18 |
2.25 ± 0.07 |
| RH10 |
102.2 ± 0.6 |
26.4 ± 1.2 |
39.9 ± 1.8 |
45.6 ± 1.7 |
3.87 ± 0.18 |
2.25 ± 0.07 |
| Average |
102.5 |
24.9 |
38.3 |
46.4 |
4.1 |
2.2 |
| Median |
102.7 |
24.5 |
37.9 |
46.8 |
4.3 |
2.2 |
| Deviation |
0.3 |
1.3 |
1.4 |
0.7 |
0.2 |
0.0 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
35.4 ± 1.8 |
33.0 ± 2.0 |
35.3 ± 2.8 |
67.3 ± 0.9 |
1.08 ± 0.07 |
0.53 ± 0.03 |
| VC |
35.4 ± 1.8 |
33.4 ± 2.1 |
35.7 ± 2.8 |
67.1 ± 0.9 |
1.06 ± 0.06 |
0.53 ± 0.03 |
| MX1 |
35.4 ± 1.8 |
32.5 ± 2.0 |
35.0 ± 2.8 |
67.5 ± 0.8 |
1.09 ± 0.07 |
0.52 ± 0.03 |
| MX2 |
35.4 ± 1.8 |
32.5 ± 2.0 |
35.0 ± 2.8 |
67.5 ± 0.8 |
1.09 ± 0.07 |
0.52 ± 0.03 |
| MX3 |
35.4 ± 1.8 |
32.5 ± 2.0 |
35.0 ± 2.8 |
67.5 ± 0.8 |
1.09 ± 0.07 |
0.52 ± 0.03 |
| RH8 |
35.2 ± 1.7 |
36.0 ± 2.4 |
37.6 ± 3.0 |
65.7 ± 1.1 |
0.98 ± 0.06 |
0.54 ± 0.03 |
| RH9 |
35.2 ± 1.7 |
36.0 ± 2.4 |
37.6 ± 3.0 |
65.7 ± 1.1 |
0.98 ± 0.06 |
0.54 ± 0.03 |
| RH10 |
35.2 ± 1.7 |
36.0 ± 2.4 |
37.6 ± 3.0 |
65.7 ± 1.1 |
0.98 ± 0.06 |
0.54 ± 0.03 |
| Average |
35.3 |
34.0 |
36.1 |
66.8 |
1.0 |
0.5 |
| Median |
35.4 |
33.4 |
35.7 |
67.3 |
1.1 |
0.5 |
| Deviation |
0.1 |
1.7 |
1.3 |
0.9 |
0.1 |
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)
| 
