Database: Wind Shock Analysis
Event ID: 19971201805
Observation time: 04/30/1997 120.75398 1805 [UT]
|
|
General
Information (About, Top)
| Year |
1997 |
| Fractional day of year |
120.753976 |
| Arrival time of shock [seconds of day] |
65143.5 ± 9.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
215.765 |
| Y GSE location of spacecraft [Re] |
-1.720 |
| Z GSE location of spacecraft [Re] |
24.000 |
| Upstream plasma points selected for analysis |
0006 |
| Upstream field points selected for analysis |
0187 |
| Downstream plasma points selected for analysis |
0005
|
| Downstream field points selected for analysis |
0258 |
| Minimum chisq/dof for RH8,RH9,RH10 |
24.98, 41.15, 43.70 |
Event added to database
|
Mon Feb 14 11:04:30 2005
|
Event last processed
|
Mon Mar 30 16:51:56 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
28.138 ± 20.683
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-343.3 ± 1.1 |
-364.9 ± 0.4 |
| Vy GSE [km/s] |
1.1 ± 1.3 |
-4.8 ± 3.2 |
| Vz GSE [km/s] |
-10.7 ± 1.0 |
25.4 ± 3.3 |
| Wi [km/s] |
25.3 ± 0.6 |
29.1 ± 1.1 |
| We [km/s] |
800.6 ± 20.2 |
920.2 ± 33.5 |
| Ni [n/cc] |
14.5 ± 0.2 |
27.1 ± 2.5 |
| Bx GSE [nT] |
-0.0 ± 0.8 |
7.3 ± 1.8 |
| By GSE [nT] |
-2.6 ± 0.2 |
-5.7 ± 1.9 |
| Bz GSE [nT] |
-2.4 ± 0.2 |
1.1 ± 1.9 |
Plasma Beta
|
1.535 ± 1.533
|
0.534 ± 0.471
|
Sound Speed [km/s]
|
32.68 ± 0.83
|
37.57 ± 1.37
|
Alfven Speed [km/s]
|
20.47 ± 0.74
|
41.07 ± 5.47
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.888 ± 0.565 |
0.437 ± 1.132 |
0.140 ± 0.139 |
8.05 ± 45.01 |
153.80 ± 72.92 |
| VC |
-0.513 ± 0.050 |
-0.137 ± 0.067 |
0.847 ± 0.537 |
57.93 ± 3.27 |
194.92 ± 7.38 |
| MX1 |
-0.697 ± 0.283 |
-0.242 ± 0.464 |
0.675 ± 0.547 |
42.48 ± 20.99 |
199.16 ± 37.60 |
| MX2 |
-0.504 ± 0.060 |
-0.180 ± 0.087 |
0.845 ± 0.538 |
57.67 ± 3.71 |
199.63 ± 9.68 |
| MX3 |
-0.493 ± 0.065 |
-0.172 ± 0.074 |
0.853 ± 0.533 |
58.55 ± 4.26 |
199.28 ± 8.28 |
| RH08 |
-0.373 ± 0.021 |
-0.267 ± 0.019 |
0.888 ± 0.502 |
62.66 ± 1.48 |
215.60 ± 2.16 |
| RH09 |
-0.538 ± 0.058 |
-0.704 ± 0.049 |
0.464 ± 0.427 |
27.63 ± 4.08 |
232.65 ± 4.45 |
| RH10 |
-0.541 ± 0.058 |
-0.709 ± 0.049 |
0.453 ± 0.419 |
26.91 ± 4.06 |
232.65 ± 4.43 |
| Average |
-0.568 |
-0.247 |
0.646 |
42.732 |
203.460 |
| Median |
-0.513 |
-0.180 |
0.845 |
57.666 |
199.633 |
| Deviation |
0.157 |
0.361 |
0.270 |
19.939 |
25.186 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
66.0 ± 12.3 |
351.0 ± 8.3 |
1.86 ± 0.20 |
| VC |
62.3 ± 6.8 |
259.6 ± 13.1 |
1.86 ± 0.20 |
| MX1 |
74.2 ± 8.5 |
320.0 ± 11.5 |
1.86 ± 0.20 |
| MX2 |
64.4 ± 6.6 |
256.4 ± 12.9 |
1.86 ± 0.20 |
| MX3 |
63.7 ± 6.5 |
252.5 ± 13.0 |
1.86 ± 0.20 |
| RH08 |
66.5 ± 5.3 |
209.9 ± 12.6 |
1.86 ± 0.20 |
| RH09 |
78.4 ± 6.9 |
249.7 ± 7.1 |
1.86 ± 0.20 |
| RH10 |
77.7 ± 7.0 |
250.3 ± 6.9 |
1.86 ± 0.20 |
| Average |
69.1 |
268.7 |
1.86 |
| Median |
66.5 |
256.4 |
1.86 |
| Deviation |
6.6 |
44.8 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
47.0 ± 0.8 |
7.2 ± 0.2 |
8.3 ± 0.3 |
37.9 ± 0.9 |
6.56 ± 0.19 |
1.24 ± 0.04 |
| VC |
92.7 ± 1.2 |
8.3 ± 0.2 |
9.5 ± 0.3 |
37.7 ± 0.9 |
11.23 ± 0.22 |
2.46 ± 0.04 |
| MX1 |
88.3 ± 1.3 |
4.8 ± 0.1 |
5.6 ± 0.2 |
38.3 ± 0.9 |
18.52 ± 0.37 |
2.31 ± 0.04 |
| MX2 |
92.6 ± 1.2 |
7.6 ± 0.2 |
8.8 ± 0.3 |
37.8 ± 0.9 |
12.12 ± 0.23 |
2.45 ± 0.04 |
| MX3 |
92.7 ± 1.2 |
7.8 ± 0.2 |
9.1 ± 0.3 |
37.8 ± 0.9 |
11.82 ± 0.22 |
2.46 ± 0.04 |
| RH8 |
91.4 ± 1.2 |
7.0 ± 0.2 |
8.2 ± 0.3 |
37.9 ± 0.9 |
13.01 ± 0.24 |
2.41 ± 0.04 |
| RH9 |
70.8 ± 1.6 |
3.5 ± 0.1 |
4.1 ± 0.1 |
38.4 ± 0.9 |
20.20 ± 0.44 |
1.84 ± 0.04 |
| RH10 |
70.1 ± 1.6 |
3.7 ± 0.1 |
4.3 ± 0.2 |
38.4 ± 0.9 |
18.96 ± 0.41 |
1.83 ± 0.04 |
| Average |
80.7 |
6.2 |
7.2 |
38.0 |
14.1 |
2.1 |
| Median |
91.4 |
7.2 |
8.3 |
37.9 |
13.0 |
2.4 |
| Deviation |
16.7 |
1.9 |
2.2 |
0.3 |
4.7 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
25.3 ± 1.5 |
11.4 ± 0.6 |
16.7 ± 2.2 |
54.6 ± 3.3 |
2.23 ± 0.25 |
0.47 ± 0.06 |
| VC |
50.2 ± 2.6 |
13.2 ± 0.7 |
19.1 ± 2.5 |
54.2 ± 3.3 |
3.82 ± 0.35 |
0.93 ± 0.09 |
| MX1 |
47.5 ± 2.1 |
7.6 ± 0.4 |
11.2 ± 1.5 |
55.3 ± 3.4 |
6.28 ± 0.49 |
0.86 ± 0.07 |
| MX2 |
50.2 ± 2.6 |
12.2 ± 0.6 |
17.8 ± 2.4 |
54.5 ± 3.3 |
4.13 ± 0.37 |
0.92 ± 0.08 |
| MX3 |
50.2 ± 2.7 |
12.5 ± 0.7 |
18.2 ± 2.4 |
54.4 ± 3.3 |
4.03 ± 0.36 |
0.93 ± 0.09 |
| RH8 |
49.7 ± 2.8 |
11.2 ± 0.6 |
16.4 ± 2.2 |
54.7 ± 3.3 |
4.45 ± 0.40 |
0.91 ± 0.08 |
| RH9 |
38.3 ± 2.3 |
5.6 ± 0.3 |
8.3 ± 1.1 |
55.5 ± 3.4 |
6.89 ± 0.38 |
0.69 ± 0.04 |
| RH10 |
37.9 ± 2.3 |
5.9 ± 0.3 |
8.7 ± 1.2 |
55.5 ± 3.4 |
6.46 ± 0.35 |
0.68 ± 0.04 |
| Average |
43.7 |
9.9 |
14.5 |
54.8 |
4.8 |
0.8 |
| Median |
49.7 |
11.4 |
16.7 |
54.7 |
4.5 |
0.9 |
| Deviation |
9.1 |
3.1 |
4.4 |
0.5 |
1.6 |
0.2 |
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)
| 
