Database: Ace Shock Analysis
Event ID: 20001751226
Observation time: 06/23/2000 175.51860 1226 [UT]
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General
Information (About, Top)
Year |
2000 |
Fractional day of year |
175.518600 |
Arrival time of shock [seconds of day] |
44807.0 ± 16.0 |
Shock type |
FF |
Electron data availability |
0 |
X GSE location of spacecraft [Re] |
0.038 |
Y GSE location of spacecraft [Re] |
0.006 |
Z GSE location of spacecraft [Re] |
-0.000 |
Upstream plasma points selected for analysis |
0008 |
Upstream field points selected for analysis |
0032 |
Downstream plasma points selected for analysis |
0008
|
Downstream field points selected for analysis |
0032 |
Minimum chisq/dof for RH8,RH9,RH10 |
21.07, 40.13, 42.28 |
Event added to database
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Sat Apr 30 21:46:36 2005
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Event last processed
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Wed Oct 15 16:19:43 2014
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Method selected
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RH08
|
Propagation delay to Earth [minutes]
|
0.006 ± 0.001
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Asymptotic
plasma
parameters (About, Top)
Parameter
|
Upstream
|
Downstream
|
Vx GSE [km/s] |
-400.3 ± 2.5 |
-507.3 ± 5.4 |
Vy GSE [km/s] |
18.0 ± 4.7 |
34.6 ± 7.4 |
Vz GSE [km/s] |
-12.5 ± 9.8 |
-117.4 ± 2.6 |
Wi [km/s] |
40.5 ± 1.7 |
60.1 ± 2.6 |
We [km/s] |
1279.8 ± 52.4 |
1901.1 ± 82.8 |
Ni [n/cc] |
6.9 ± 0.5 |
17.6 ± 0.9 |
Bx GSE [nT] |
5.4 ± 0.2 |
14.6 ± 1.5 |
By GSE [nT] |
-4.3 ± 1.1 |
-2.6 ± 2.8 |
Bz GSE [nT] |
-4.2 ± 1.5 |
-15.7 ± 0.8 |
Plasma Beta
|
0.359 ± 0.351
|
0.296 ± 0.280
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Sound Speed [km/s]
|
52.14 ± 2.15
|
79.01 ± 4.83
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Alfven Speed [km/s]
|
67.70 ± 2.55
|
113.33 ± 5.83
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Best values of
shock
front normal for each method (About, Top)
Method |
Nx |
Ny |
Nz |
Theta [degrees] |
Phi [degrees] |
MC |
-0.550 ± 0.653 |
0.833 ± 0.431 |
-0.064 ± 0.064 |
-3.66 ± 8.71 |
123.45 ± 44.93 |
VC |
-0.710 ± 0.040 |
0.132 ± 0.053 |
-0.692 ± 0.552 |
-43.77 ± 3.25 |
169.50 ± 4.21 |
MX1 |
-0.785 ± 0.099 |
0.218 ± 0.122 |
-0.580 ± 0.504 |
-35.43 ± 9.56 |
164.45 ± 8.72 |
MX2 |
-0.781 ± 0.077 |
0.138 ± 0.058 |
-0.609 ± 0.519 |
-37.53 ± 7.31 |
169.95 ± 4.12 |
MX3 |
-0.780 ± 0.074 |
0.112 ± 0.060 |
-0.616 ± 0.523 |
-38.04 ± 6.88 |
171.81 ± 4.38 |
RH08 |
-0.854 ± 0.009 |
0.113 ± 0.008 |
-0.508 ± 0.459 |
-30.56 ± 0.98 |
172.48 ± 0.54 |
RH09 |
-0.975 ± 0.015 |
0.043 ± 0.071 |
-0.218 ± 0.214 |
-12.58 ± 3.96 |
177.49 ± 4.17 |
RH10 |
-0.976 ± 0.015 |
0.026 ± 0.071 |
-0.218 ± 0.214 |
-12.58 ± 3.97 |
178.50 ± 4.16 |
Average |
-0.801 |
0.202 |
-0.438 |
-26.771 |
165.953 |
Median |
-0.781 |
0.132 |
-0.508 |
-30.556 |
171.807 |
Deviation |
0.139 |
0.262 |
0.235 |
14.918 |
17.746 |
Key shock
parameters (About, Top)
Method |
ThetaBn |
Shock Speed |
Compression |
MC |
39.0 ± 11.6 |
373.0 ± 1.7 |
2.52 ± 0.16 |
VC |
79.2 ± 8.6 |
543.7 ± 2.4 |
2.52 ± 0.16 |
MX1 |
70.1 ± 8.6 |
571.6 ± 2.4 |
2.52 ± 0.16 |
MX2 |
73.8 ± 8.1 |
570.2 ± 2.4 |
2.52 ± 0.16 |
MX3 |
74.9 ± 8.0 |
569.7 ± 2.4 |
2.52 ± 0.16 |
RH08 |
68.6 ± 7.3 |
592.1 ± 2.3 |
2.52 ± 0.16 |
RH09 |
56.2 ± 4.7 |
607.2 ± 2.1 |
2.52 ± 0.16 |
RH10 |
56.8 ± 4.5 |
606.7 ± 16.4 |
2.52 ± 0.16 |
Average |
64.8 |
554.3 |
2.52 |
Median |
70.1 |
571.6 |
2.52 |
Deviation |
13.3 |
76.3 |
0.00 |
Upstream wave speeds
and
mach numbers (About, Top)
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
MC |
137.7 ± 3.4 |
35.2 ± 0.9 |
52.6 ± 2.0 |
77.9 ± 1.9 |
3.92 ± 0.13 |
1.77 ± 0.07 |
VC |
248.5 ± 6.1 |
7.7 ± 0.2 |
12.6 ± 0.5 |
85.1 ± 2.0 |
32.16 ± 0.93 |
2.92 ± 0.10 |
MX1 |
246.3 ± 5.2 |
14.2 ± 0.4 |
23.0 ± 0.9 |
84.3 ± 1.9 |
17.34 ± 0.48 |
2.92 ± 0.09 |
MX2 |
247.5 ± 5.2 |
11.6 ± 0.3 |
18.9 ± 0.7 |
84.7 ± 1.9 |
21.28 ± 0.58 |
2.92 ± 0.09 |
MX3 |
247.9 ± 5.2 |
10.9 ± 0.3 |
17.7 ± 0.7 |
84.8 ± 1.9 |
22.83 ± 0.63 |
2.92 ± 0.09 |
RH8 |
241.9 ± 4.1 |
15.3 ± 0.4 |
24.7 ± 0.9 |
84.1 ± 1.9 |
15.79 ± 0.41 |
2.88 ± 0.09 |
RH9 |
213.3 ± 1.8 |
23.9 ± 0.6 |
37.6 ± 1.4 |
82.1 ± 1.9 |
8.94 ± 0.24 |
2.60 ± 0.07 |
RH10 |
212.8 ± 1.8 |
23.5 ± 0.6 |
37.0 ± 1.4 |
82.2 ± 1.9 |
9.07 ± 0.25 |
2.59 ± 0.07 |
Average |
224.5 |
17.8 |
28.0 |
83.2 |
16.4 |
2.7 |
Median |
246.3 |
15.3 |
24.7 |
84.3 |
17.3 |
2.9 |
Deviation |
38.2 |
9.1 |
13.3 |
2.4 |
9.1 |
0.4 |
Downstream wave speeds
and
mach numbers (About, Top)
Method
|
dV
|
Slow
|
Intermediate
|
Fast
|
Slow
Mach
|
Fast
Mach
|
MC |
56.4 ± 6.2 |
54.7 ± 2.3 |
88.0 ± 4.5 |
127.0 ± 4.8 |
1.03 ± 0.13 |
0.45 ± 0.05 |
VC |
98.8 ± 5.5 |
12.1 ± 0.5 |
21.1 ± 1.1 |
137.7 ± 4.9 |
8.17 ± 0.46 |
0.72 ± 0.05 |
MX1 |
98.6 ± 5.8 |
22.3 ± 0.9 |
38.5 ± 2.0 |
136.5 ± 4.9 |
4.43 ± 0.27 |
0.72 ± 0.05 |
MX2 |
98.8 ± 5.8 |
18.2 ± 0.7 |
31.7 ± 1.6 |
137.1 ± 4.9 |
5.42 ± 0.32 |
0.72 ± 0.05 |
MX3 |
99.1 ± 5.8 |
17.0 ± 0.7 |
29.6 ± 1.5 |
137.2 ± 4.9 |
5.83 ± 0.34 |
0.72 ± 0.05 |
RH8 |
96.4 ± 6.1 |
24.0 ± 0.9 |
41.4 ± 2.1 |
136.2 ± 4.9 |
4.02 ± 0.25 |
0.71 ± 0.05 |
RH9 |
86.5 ± 6.6 |
37.3 ± 1.5 |
63.0 ± 3.2 |
133.1 ± 4.8 |
2.32 ± 0.17 |
0.65 ± 0.05 |
RH10 |
86.3 ± 6.6 |
36.7 ± 1.5 |
62.0 ± 3.2 |
133.3 ± 4.8 |
2.35 ± 0.17 |
0.65 ± 0.05 |
Average |
90.1 |
27.8 |
46.9 |
134.7 |
4.2 |
0.7 |
Median |
98.6 |
24.0 |
41.4 |
136.5 |
4.4 |
0.7 |
Deviation |
14.7 |
14.1 |
22.3 |
3.6 |
2.3 |
0.1 |
Survey interval (About, Top)
Selected
data (About, Top)
Key plasma parameters
|
Velocity
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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 Mon Apr 13 08:55:21 2009
Michael L Stevens
(mstevens@cfa.harvard.edu)
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