Database: Wind Shock Analysis
Event ID: 19990222021
Observation time: 01/22/1999 22.84845 2021 [UT]
|
|
General
Information (About, Top)
| Year |
1999 |
| Fractional day of year |
22.848455 |
| Arrival time of shock [seconds of day] |
73306.5 ± 12.0 |
| Shock type |
FF |
| Electron data availability |
0 |
X GSE location of spacecraft [Re] |
-10.572 |
| Y GSE location of spacecraft [Re] |
-63.408 |
| Z GSE location of spacecraft [Re] |
8.026 |
| Upstream plasma points selected for analysis |
0007 |
| Upstream field points selected for analysis |
0240 |
| Downstream plasma points selected for analysis |
0007
|
| Downstream field points selected for analysis |
0199 |
| Minimum chisq/dof for RH8,RH9,RH10 |
5.82, 6.50, 6.77 |
Event added to database
|
Mon Feb 14 11:07:34 2005
|
Event last processed
|
Mon Mar 30 18:27:25 2009
|
Method selected
|
RH08
|
Propagation delay to Earth [minutes]
|
1.520 ± 0.572
|
Asymptotic
plasma
parameters (About, Top)
|
Parameter
|
Upstream
|
Downstream
|
| Vx GSE [km/s] |
-514.7 ± 7.0 |
-605.1 ± 17.1 |
| Vy GSE [km/s] |
32.2 ± 14.5 |
-13.2 ± 11.8 |
| Vz GSE [km/s] |
7.8 ± 12.8 |
11.9 ± 25.9 |
| Wi [km/s] |
60.4 ± 2.4 |
77.4 ± 11.2 |
| We [km/s] |
1910.4 ± 76.9 |
2447.5 ± 355.3 |
| Ni [n/cc] |
2.9 ± 0.1 |
4.6 ± 0.7 |
| Bx GSE [nT] |
-7.7 ± 0.6 |
-6.5 ± 0.9 |
| By GSE [nT] |
4.2 ± 1.0 |
11.2 ± 0.6 |
| Bz GSE [nT] |
-3.8 ± 1.0 |
-6.8 ± 2.0 |
Plasma Beta
|
0.234 ± 0.228
|
0.281 ± 0.265
|
Sound Speed [km/s]
|
77.99 ± 3.14
|
99.92 ± 14.51
|
Alfven Speed [km/s]
|
125.23 ± 2.69
|
151.97 ± 14.38
|
Best values of
shock
front normal for each method (About, Top)
| Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
| MC |
-0.954 ± 0.056 |
0.105 ± 0.115 |
-0.281 ± 0.273 |
-16.31 ± 11.23 |
173.73 ± 6.88 |
| VC |
-0.894 ± 0.078 |
-0.449 ± 0.156 |
0.017 ± 0.017 |
0.97 ± 15.28 |
206.66 ± 9.98 |
| MX1 |
-0.958 ± 0.048 |
0.100 ± 0.109 |
-0.268 ± 0.262 |
-15.56 ± 9.99 |
174.04 ± 6.49 |
| MX2 |
-0.960 ± 0.046 |
0.096 ± 0.108 |
-0.262 ± 0.256 |
-15.22 ± 9.93 |
174.31 ± 6.41 |
| MX3 |
-0.963 ± 0.050 |
0.089 ± 0.112 |
-0.255 ± 0.250 |
-14.79 ± 11.09 |
174.72 ± 6.64 |
| RH08 |
-0.936 ± 0.007 |
0.278 ± 0.016 |
-0.218 ± 0.214 |
-12.58 ± 1.29 |
163.45 ± 0.98 |
| RH09 |
-0.931 ± 0.022 |
0.276 ± 0.049 |
-0.240 ± 0.235 |
-13.90 ± 4.06 |
163.45 ± 3.00 |
| RH10 |
-0.933 ± 0.023 |
0.277 ± 0.057 |
-0.229 ± 0.225 |
-13.24 ± 4.07 |
163.45 ± 3.46 |
| Average |
-0.941 |
0.097 |
-0.217 |
-12.580 |
174.228 |
| Median |
-0.936 |
0.105 |
-0.240 |
-13.900 |
174.036 |
| Deviation |
0.023 |
0.238 |
0.097 |
5.610 |
14.145 |
Key shock
parameters (About, Top)
| Method |
ThetaBn |
Shock Speed |
Compression |
| MC |
23.0 ± 6.1 |
697.0 ± 170.0 |
1.60 ± 0.28 |
| VC |
59.2 ± 6.0 |
710.1 ± 252.5 |
1.60 ± 0.28 |
| MX1 |
23.5 ± 6.1 |
701.2 ± 172.3 |
1.60 ± 0.28 |
| MX2 |
23.9 ± 6.1 |
704.0 ± 173.7 |
1.60 ± 0.28 |
| MX3 |
24.4 ± 6.0 |
706.7 ± 175.6 |
1.60 ± 0.28 |
| RH08 |
17.1 ± 5.7 |
668.9 ± 146.5 |
1.60 ± 0.28 |
| RH09 |
16.3 ± 5.7 |
664.8 ± 144.2 |
1.60 ± 0.28 |
| RH10 |
16.7 ± 5.7 |
666.6 ± 145.3 |
1.60 ± 0.28 |
| Average |
25.5 |
689.9 |
1.60 |
| Median |
23.5 |
701.2 |
1.60 |
| Deviation |
14.0 |
19.6 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
204.7 ± 5.8 |
68.9 ± 2.3 |
115.3 ± 2.5 |
130.5 ± 2.1 |
2.98 ± 0.16 |
1.57 ± 0.05 |
| VC |
264.4 ± 11.8 |
34.9 ± 0.9 |
64.2 ± 1.4 |
143.4 ± 1.6 |
7.58 ± 0.49 |
1.84 ± 0.09 |
| MX1 |
207.0 ± 5.8 |
68.5 ± 2.3 |
114.8 ± 2.5 |
130.7 ± 2.0 |
3.03 ± 0.16 |
1.58 ± 0.05 |
| MX2 |
208.7 ± 5.9 |
68.2 ± 2.2 |
114.5 ± 2.5 |
130.8 ± 2.0 |
3.06 ± 0.16 |
1.60 ± 0.05 |
| MX3 |
210.2 ± 5.9 |
67.8 ± 2.2 |
114.0 ± 2.4 |
131.0 ± 2.0 |
3.10 ± 0.17 |
1.60 ± 0.05 |
| RH8 |
180.2 ± 3.5 |
72.7 ± 2.6 |
119.7 ± 2.6 |
128.4 ± 2.3 |
2.48 ± 0.11 |
1.40 ± 0.03 |
| RH9 |
178.8 ± 3.5 |
73.1 ± 2.6 |
120.2 ± 2.6 |
128.1 ± 2.3 |
2.45 ± 0.11 |
1.40 ± 0.03 |
| RH10 |
179.2 ± 3.5 |
72.9 ± 2.6 |
119.9 ± 2.6 |
128.3 ± 2.3 |
2.46 ± 0.11 |
1.40 ± 0.03 |
| Average |
204.1 |
65.9 |
110.3 |
131.4 |
3.4 |
1.5 |
| Median |
207.0 |
68.9 |
115.3 |
130.7 |
3.0 |
1.6 |
| Deviation |
28.1 |
12.7 |
18.8 |
5.0 |
1.7 |
0.2 |
Downstream wave speeds
and
mach numbers (About, Top)
|
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
| MC |
124.4 ± 11.4 |
86.6 ± 9.9 |
139.9 ± 13.2 |
160.5 ± 10.5 |
1.46 ± 0.27 |
0.78 ± 0.08 |
| VC |
163.3 ± 14.1 |
43.5 ± 3.8 |
77.9 ± 7.4 |
177.5 ± 6.9 |
3.79 ± 0.51 |
0.92 ± 0.09 |
| MX1 |
126.0 ± 11.7 |
86.1 ± 9.8 |
139.3 ± 13.2 |
160.8 ± 10.4 |
1.49 ± 0.28 |
0.79 ± 0.08 |
| MX2 |
127.4 ± 11.8 |
85.7 ± 9.7 |
138.9 ± 13.1 |
161.0 ± 10.3 |
1.51 ± 0.28 |
0.79 ± 0.08 |
| MX3 |
128.3 ± 11.9 |
85.2 ± 9.6 |
138.4 ± 13.1 |
161.2 ± 10.2 |
1.53 ± 0.28 |
0.80 ± 0.08 |
| RH8 |
109.1 ± 13.5 |
91.8 ± 11.3 |
145.2 ± 13.7 |
157.4 ± 11.6 |
1.21 ± 0.27 |
0.69 ± 0.08 |
| RH9 |
108.2 ± 13.0 |
92.5 ± 11.5 |
145.9 ± 13.8 |
157.0 ± 11.7 |
1.20 ± 0.26 |
0.69 ± 0.08 |
| RH10 |
108.4 ± 13.2 |
92.1 ± 11.4 |
145.5 ± 13.8 |
157.2 ± 11.7 |
1.20 ± 0.27 |
0.69 ± 0.08 |
| Average |
124.4 |
82.9 |
133.9 |
161.6 |
1.7 |
0.8 |
| Median |
126.0 |
86.6 |
139.9 |
160.8 |
1.5 |
0.8 |
| Deviation |
18.1 |
16.2 |
22.8 |
6.7 |
0.9 |
0.1 |
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)
| 
