Database: Wind Shock Analysis
Event ID: 19970791942
Observation time: 03/20/1997 79.82109 1942 [UT]
|
|
General
Information (About, Top)
| Year |
1997 |
| Fractional day of year |
79.821094 |
| Arrival time of shock [seconds of day] |
70942.5 ± 3.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
228.290 |
| Y GSE location of spacecraft [Re] |
18.950 |
| Z GSE location of spacecraft [Re] |
7.545 |
| Upstream plasma points selected for analysis |
0009 |
| Upstream field points selected for analysis |
0239 |
| Downstream plasma points selected for analysis |
0009
|
| Downstream field points selected for analysis |
0237 |
| Minimum chisq/dof for RH8,RH9,RH10 |
30.49, 26.12, 27.12 |
Event added to database
|
Mon Feb 14 11:04:13 2005
|
Event last processed
|
Mon Mar 30 16:46:43 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
63.080 ± 15.305
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-304.6 ± 0.8 |
-319.2 ± 0.4 |
| Vy GSE [km/s] |
-5.9 ± 1.2 |
-10.8 ± 1.1 |
| Vz GSE [km/s] |
-1.9 ± 0.7 |
18.1 ± 0.6 |
| Wi [km/s] |
13.8 ± 0.4 |
17.3 ± 0.4 |
| We [km/s] |
436.4 ± 12.0 |
548.2 ± 12.9 |
| Ni [n/cc] |
18.6 ± 0.6 |
32.0 ± 0.6 |
| Bx GSE [nT] |
0.9 ± 0.1 |
1.1 ± 0.1 |
| By GSE [nT] |
2.6 ± 0.2 |
3.9 ± 0.2 |
| Bz GSE [nT] |
1.2 ± 0.2 |
1.5 ± 0.2 |
Plasma Beta
|
0.817 ± 0.787
|
1.119 ± 1.147
|
Sound Speed [km/s]
|
17.81 ± 0.49
|
22.38 ± 0.53
|
Alfven Speed [km/s]
|
15.41 ± 1.24
|
16.45 ± 0.74
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.985 ± 0.171 |
-0.172 ± 0.965 |
-0.029 ± 0.029 |
-1.67 ± 56.03 |
189.89 ± 56.15 |
| VC |
-0.580 ± 0.033 |
-0.192 ± 0.052 |
0.792 ± 0.558 |
52.34 ± 2.16 |
198.35 ± 5.02 |
| MX1 |
-0.550 ± 0.076 |
-0.054 ± 0.157 |
0.834 ± 0.544 |
56.47 ± 5.16 |
185.65 ± 16.34 |
| MX2 |
-0.560 ± 0.065 |
-0.057 ± 0.155 |
0.826 ± 0.548 |
55.73 ± 4.38 |
185.76 ± 15.84 |
| MX3 |
-0.584 ± 0.048 |
-0.061 ± 0.153 |
0.809 ± 0.554 |
54.02 ± 3.21 |
186.00 ± 15.04 |
| RH08 |
-0.774 ± 0.005 |
-0.047 ± 0.008 |
0.631 ± 0.530 |
39.14 ± 0.48 |
183.51 ± 0.58 |
| RH09 |
-0.928 ± 0.026 |
0.241 ± 0.069 |
-0.285 ± 0.277 |
-16.55 ± 3.98 |
165.46 ± 4.24 |
| RH10 |
-0.925 ± 0.027 |
0.240 ± 0.069 |
-0.296 ± 0.287 |
-17.22 ± 4.00 |
165.46 ± 4.24 |
| Average |
-0.736 |
-0.013 |
0.410 |
27.781 |
182.510 |
| Median |
-0.584 |
-0.054 |
0.792 |
52.337 |
185.760 |
| Deviation |
0.188 |
0.166 |
0.518 |
33.559 |
11.468 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
63.6 ± 2.7 |
336.1 ± 2.8 |
1.72 ± 0.07 |
| VC |
89.2 ± 3.7 |
236.3 ± 3.7 |
1.72 ± 0.07 |
| MX1 |
82.4 ± 3.7 |
225.7 ± 3.3 |
1.72 ± 0.07 |
| MX2 |
82.9 ± 3.7 |
229.0 ± 3.3 |
1.72 ± 0.07 |
| MX3 |
83.9 ± 3.7 |
236.5 ± 3.4 |
1.72 ± 0.07 |
| RH08 |
89.5 ± 3.5 |
292.5 ± 3.3 |
1.72 ± 0.07 |
| RH09 |
79.9 ± 1.8 |
297.7 ± 1.3 |
1.72 ± 0.07 |
| RH10 |
79.7 ± 1.8 |
296.0 ± 1.3 |
1.72 ± 0.07 |
| Average |
81.4 |
268.7 |
1.72 |
| Median |
82.9 |
292.5 |
1.72 |
| Deviation |
8.1 |
41.8 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
35.1 ± 0.9 |
5.3 ± 0.3 |
6.9 ± 0.6 |
23.0 ± 0.8 |
6.62 ± 0.37 |
1.53 ± 0.06 |
| VC |
60.0 ± 1.0 |
0.2 ± 0.0 |
0.2 ± 0.0 |
23.6 ± 0.9 |
385.00 ± 19.87 |
2.55 ± 0.10 |
| MX1 |
59.5 ± 0.9 |
1.5 ± 0.1 |
2.0 ± 0.2 |
23.5 ± 0.9 |
38.75 ± 1.98 |
2.53 ± 0.09 |
| MX2 |
59.5 ± 0.9 |
1.4 ± 0.1 |
1.9 ± 0.2 |
23.5 ± 0.9 |
41.25 ± 2.11 |
2.53 ± 0.09 |
| MX3 |
59.6 ± 0.9 |
1.2 ± 0.1 |
1.6 ± 0.1 |
23.5 ± 0.9 |
48.44 ± 2.47 |
2.54 ± 0.09 |
| RH8 |
57.6 ± 0.9 |
0.1 ± 0.0 |
0.1 ± 0.0 |
23.6 ± 0.9 |
555.10 ± 28.45 |
2.45 ± 0.09 |
| RH9 |
15.9 ± 0.5 |
2.0 ± 0.1 |
2.7 ± 0.2 |
23.5 ± 0.9 |
7.81 ± 0.42 |
0.68 ± 0.03 |
| RH10 |
15.2 ± 0.5 |
2.1 ± 0.1 |
2.8 ± 0.2 |
23.5 ± 0.9 |
7.29 ± 0.40 |
0.65 ± 0.03 |
| Average |
45.3 |
1.7 |
2.3 |
23.5 |
136.3 |
1.9 |
| Median |
59.5 |
1.5 |
2.0 |
23.5 |
41.2 |
2.5 |
| Deviation |
20.2 |
1.6 |
2.1 |
0.2 |
211.6 |
0.9 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
20.5 ± 0.5 |
6.0 ± 0.1 |
7.3 ± 0.3 |
27.1 ± 0.3 |
3.39 ± 0.14 |
0.75 ± 0.02 |
| VC |
34.8 ± 0.6 |
0.2 ± 0.0 |
0.2 ± 0.0 |
27.8 ± 0.3 |
195.60 ± 6.14 |
1.25 ± 0.02 |
| MX1 |
34.5 ± 0.5 |
1.8 ± 0.0 |
2.2 ± 0.1 |
27.7 ± 0.3 |
19.72 ± 0.55 |
1.24 ± 0.02 |
| MX2 |
34.6 ± 0.5 |
1.6 ± 0.0 |
2.0 ± 0.1 |
27.7 ± 0.3 |
20.99 ± 0.59 |
1.25 ± 0.02 |
| MX3 |
34.6 ± 0.5 |
1.4 ± 0.0 |
1.7 ± 0.1 |
27.8 ± 0.3 |
24.66 ± 0.69 |
1.25 ± 0.02 |
| RH8 |
33.4 ± 0.4 |
0.1 ± 0.0 |
0.1 ± 0.0 |
27.8 ± 0.3 |
282.59 ± 7.88 |
1.20 ± 0.02 |
| RH9 |
9.3 ± 0.4 |
2.3 ± 0.1 |
2.9 ± 0.1 |
27.7 ± 0.3 |
3.98 ± 0.19 |
0.33 ± 0.02 |
| RH10 |
8.8 ± 0.4 |
2.4 ± 0.1 |
2.9 ± 0.1 |
27.7 ± 0.3 |
3.71 ± 0.19 |
0.32 ± 0.02 |
| Average |
26.3 |
2.0 |
2.4 |
27.7 |
69.3 |
1.0 |
| Median |
34.5 |
1.8 |
2.2 |
27.7 |
21.0 |
1.2 |
| Deviation |
11.7 |
1.8 |
2.2 |
0.2 |
107.7 |
0.4 |
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)
| 
