CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19952030535
Observation time: 07/22/1995 203.23314 0535 [UT]

Wind spacecraft

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Asymptotic parameters
Shock front normals
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Wave speed and Mach numbers
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Simple methods
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 1995
Fractional day of year 203.233142
Arrival time of shock [seconds of day] 20143.5 ± 6.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 127.309
Y GSE location of spacecraft [Re] 2.191
Z GSE location of spacecraft [Re] -12.850
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0241
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0257
Minimum chisq/dof for RH8,RH9,RH10 11.72, 15.68, 20.84
Event added to database
Mon Feb 14 11:00:45 2005
Event last processed
Wed Mar 25 12:55:48 2009
Method selected
RH08
Propagation delay to Earth [minutes]
116.452 ± 1225.752

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -356.5 ± 1.8 -368.2 ± 2.8
Vy GSE [km/s] -21.0 ± 3.4 -21.5 ± 1.3
Vz GSE [km/s] 14.8 ± 2.4 -25.8 ± 3.0
Wi [km/s] 18.1 ± 1.0 20.8 ± 0.8
We [km/s] 573.2 ± 30.5 657.0 ± 26.7
Ni [n/cc] 3.8 ± 0.2 7.4 ± 0.3
Bx GSE [nT] -2.4 ± 0.2 -4.3 ± 0.2
By GSE [nT] 2.2 ± 0.1 4.2 ± 0.2
Bz GSE [nT] -0.9 ± 0.1 1.3 ± 0.3
Plasma Beta
0.231 ± 0.227
0.178 ± 0.171
Sound Speed [km/s]
23.40 ± 1.25
26.82 ± 1.09
Alfven Speed [km/s]
37.94 ± 1.71
49.25 ± 0.82

Best values of shock front normal for each method (About, Top)

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.496 ± 0.076 0.381 ± 0.087 -0.780 ± 0.560 -51.28 ± 4.06 142.45 ± 9.29
VC -0.287 ± 0.058 -0.026 ± 0.090 -0.958 ± 0.368 -73.28 ± 3.43 185.16 ± 17.98
MX1 -0.544 ± 0.049 0.314 ± 0.036 -0.779 ± 0.560 -51.13 ± 4.02 150.01 ± 2.46
MX2 -0.562 ± 0.052 0.290 ± 0.044 -0.775 ± 0.560 -50.80 ± 3.99 152.68 ± 3.72
MX3 -0.580 ± 0.057 0.268 ± 0.069 -0.770 ± 0.561 -50.33 ± 3.98 155.20 ± 6.45
RH08 0.049 ± 0.031 0.745 ± 0.019 -0.665 ± 0.543 -41.67 ± 1.59 86.24 ± 2.37
RH09 -0.064 ± 0.068 0.690 ± 0.031 -0.721 ± 0.558 -46.11 ± 2.44 95.26 ± 5.64
RH10 -0.064 ± 0.071 0.690 ± 0.037 -0.721 ± 0.558 -46.11 ± 2.95 95.26 ± 5.86
Average -0.318 0.419 -0.771 -51.337 132.782
Median -0.287 0.381 -0.770 -50.327 150.006
Deviation 0.261 0.268 0.086 9.493 35.882

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 36.8 ± 2.1 231.6 ± 8.9 1.96 ± 0.11
VC 64.4 ± 2.1 173.7 ± 9.6 1.96 ± 0.11
MX1 37.7 ± 2.1 251.2 ± 9.0 1.96 ± 0.11
MX2 38.0 ± 2.1 258.3 ± 9.1 1.96 ± 0.11
MX3 38.3 ± 2.1 265.3 ± 9.1 1.96 ± 0.11
RH08 52.1 ± 2.8 9.3 ± 6.1 1.96 ± 0.11
RH09 47.6 ± 2.7 56.9 ± 6.9 1.96 ± 0.11
RH10 47.6 ± 2.7 56.9 ± 6.9 1.96 ± 0.11
Average 45.3 162.9 1.96
Median 47.6 231.6 1.96
Deviation 9.6 105.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 74.4 ± 2.5 17.3 ± 0.6 30.4 ± 1.4 41.1 ± 1.2 4.31 ± 0.25 1.81 ± 0.04
VC 85.1 ± 2.2 8.8 ± 0.3 16.4 ± 0.7 43.7 ± 1.1 9.72 ± 0.39 1.95 ± 0.07
MX1 75.5 ± 2.4 17.0 ± 0.6 30.0 ± 1.3 41.2 ± 1.2 4.44 ± 0.25 1.83 ± 0.04
MX2 75.6 ± 2.3 16.9 ± 0.6 29.9 ± 1.3 41.3 ± 1.2 4.47 ± 0.25 1.83 ± 0.04
MX3 75.6 ± 2.3 16.9 ± 0.6 29.8 ± 1.3 41.3 ± 1.2 4.49 ± 0.25 1.83 ± 0.04
RH8 52.2 ± 2.6 12.8 ± 0.4 23.3 ± 1.0 42.7 ± 1.1 4.10 ± 0.28 1.22 ± 0.04
RH9 59.3 ± 2.7 14.1 ± 0.5 25.6 ± 1.2 42.3 ± 1.2 4.20 ± 0.27 1.40 ± 0.04
RH10 59.3 ± 2.7 14.1 ± 0.5 25.6 ± 1.2 42.3 ± 1.2 4.20 ± 0.27 1.40 ± 0.04
Average 69.6 14.7 26.4 42.0 5.0 1.7
Median 75.5 16.9 29.8 42.3 4.4 1.8
Deviation 11.2 3.0 4.8 0.9 1.9 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 37.1 ± 3.8 20.2 ± 0.7 39.4 ± 0.7 52.3 ± 0.8 1.84 ± 0.20 0.71 ± 0.08
VC 42.9 ± 3.4 10.4 ± 0.3 21.3 ± 0.4 55.1 ± 0.8 4.14 ± 0.37 0.78 ± 0.07
MX1 37.7 ± 3.8 19.9 ± 0.7 38.9 ± 0.6 52.4 ± 0.8 1.89 ± 0.20 0.72 ± 0.08
MX2 37.7 ± 3.8 19.8 ± 0.7 38.8 ± 0.6 52.5 ± 0.8 1.91 ± 0.20 0.72 ± 0.08
MX3 37.7 ± 3.9 19.7 ± 0.7 38.7 ± 0.6 52.5 ± 0.8 1.91 ± 0.21 0.72 ± 0.08
RH8 26.2 ± 2.5 15.0 ± 0.5 30.3 ± 0.5 54.0 ± 0.8 1.74 ± 0.17 0.49 ± 0.05
RH9 29.7 ± 2.8 16.6 ± 0.6 33.2 ± 0.6 53.6 ± 0.8 1.79 ± 0.18 0.55 ± 0.06
RH10 29.7 ± 2.8 16.6 ± 0.6 33.2 ± 0.6 53.6 ± 0.8 1.79 ± 0.18 0.55 ± 0.06
Average 34.8 17.3 34.2 53.2 2.1 0.7
Median 37.7 19.7 38.7 53.6 1.9 0.7
Deviation 5.6 3.4 6.3 1.0 0.8 0.1

Survey interval (About, Top)
Survey of solar wind interval
Selected data (About, Top)
Key plasma parameters
Survey
Velocity
V

Magnetic Field
B


Simple Methods (About, Top)
Simple methods
Rankine Chi^2 Contour (About, Top)

Chisq


Shock Speed (About, Top)
Shock Speed

Theta Bn (About, Top)
Theta Bn

Mach Numbers (About, Top)

Upstream wave speeds
Upstream Mach numbers
Downsteam wave speeds
Downstream mach numbers
Page updated Fri Jun 13 11:06:02 2014
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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