CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20012811305
Observation time: 10/08/2001 281.54543 1305 [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
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2001
Fractional day of year 281.545434
Arrival time of shock [seconds of day] 47125.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 41.517
Y GSE location of spacecraft [Re] -61.533
Z GSE location of spacecraft [Re] 5.314
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0235
Downstream plasma points selected for analysis 0005
Downstream field points selected for analysis 0177
Minimum chisq/dof for RH8,RH9,RH10 23.24, 48.48, 51.33
Event added to database
Mon Feb 14 11:15:42 2005
Event last processed
Mon Mar 30 21:43:35 2009
Method selected
RH08
Propagation delay to Earth [minutes]
2.055 ± 0.319

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -365.6 ± 1.8 -387.8 ± 3.6
Vy GSE [km/s] 2.0 ± 3.4 -4.6 ± 2.8
Vz GSE [km/s] -11.0 ± 2.1 -12.2 ± 1.5
Wi [km/s] 34.0 ± 1.7 38.4 ± 1.8
We [km/s] 1076.0 ± 52.3 1215.3 ± 57.2
Ni [n/cc] 8.8 ± 0.6 13.6 ± 1.2
Bx GSE [nT] -3.8 ± 0.2 -6.0 ± 0.4
By GSE [nT] 8.3 ± 0.1 11.6 ± 0.3
Bz GSE [nT] 1.6 ± 0.4 1.1 ± 0.5
Plasma Beta
0.251 ± 0.237
0.248 ± 0.262
Sound Speed [km/s]
43.93 ± 2.13
49.61 ± 2.34
Alfven Speed [km/s]
68.41 ± 3.02
77.85 ± 4.96

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.715 ± 0.542 -0.492 ± 0.633 -0.497 ± 0.451 -29.78 ± 51.16 214.57 ± 46.56
VC -0.958 ± 0.049 -0.281 ± 0.165 -0.057 ± 0.057 -3.27 ± 6.26 196.35 ± 9.89
MX1 -0.831 ± 0.058 -0.545 ± 0.087 -0.109 ± 0.109 -6.28 ± 5.97 213.25 ± 5.97
MX2 -0.837 ± 0.060 -0.541 ± 0.092 -0.084 ± 0.084 -4.84 ± 6.98 212.91 ± 6.26
MX3 -0.846 ± 0.064 -0.533 ± 0.101 -0.031 ± 0.031 -1.78 ± 9.29 212.21 ± 6.85
RH08 -0.867 ± 0.008 -0.472 ± 0.012 -0.162 ± 0.161 -9.32 ± 1.68 208.58 ± 0.81
RH09 -0.933 ± 0.025 -0.350 ± 0.065 -0.084 ± 0.084 -4.81 ± 4.02 200.56 ± 3.99
RH10 -0.946 ± 0.022 -0.317 ± 0.065 -0.073 ± 0.072 -4.16 ± 4.03 198.55 ± 3.95
Average -0.866 -0.442 -0.137 -8.028 207.123
Median -0.846 -0.472 -0.084 -4.807 212.212
Deviation 0.080 0.108 0.150 9.063 7.436

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 76.5 ± 1.3 321.9 ± 21.0 1.61 ± 0.19
VC 82.3 ± 1.1 419.4 ± 21.0 1.61 ± 0.19
MX1 80.6 ± 1.2 367.0 ± 22.9 1.61 ± 0.19
MX2 81.1 ± 1.2 368.9 ± 22.9 1.61 ± 0.19
MX3 82.3 ± 1.2 372.0 ± 22.8 1.61 ± 0.19
RH08 84.6 ± 1.1 382.1 ± 22.5 1.61 ± 0.19
RH09 86.7 ± 1.1 409.3 ± 21.7 1.61 ± 0.19
RH10 84.7 ± 1.1 414.4 ± 21.4 1.61 ± 0.19
Average 82.4 381.9 1.61
Median 82.3 382.1 1.61
Deviation 3.1 32.3 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 56.1 ± 2.3 8.7 ± 0.2 16.0 ± 0.7 80.9 ± 1.6 6.48 ± 0.24 0.69 ± 0.04
VC 69.1 ± 1.8 4.9 ± 0.1 9.1 ± 0.4 81.2 ± 1.6 14.05 ± 0.49 0.85 ± 0.03
MX1 62.9 ± 2.1 6.1 ± 0.1 11.2 ± 0.5 81.1 ± 1.6 10.37 ± 0.33 0.78 ± 0.04
MX2 63.2 ± 2.1 5.7 ± 0.1 10.5 ± 0.5 81.2 ± 1.6 11.08 ± 0.36 0.78 ± 0.04
MX3 63.5 ± 2.1 4.9 ± 0.1 9.1 ± 0.4 81.2 ± 1.6 12.89 ± 0.41 0.78 ± 0.04
RH8 64.5 ± 2.0 3.5 ± 0.1 6.4 ± 0.3 81.3 ± 1.6 18.66 ± 0.61 0.79 ± 0.04
RH9 67.9 ± 1.8 2.1 ± 0.0 3.9 ± 0.2 81.3 ± 1.6 32.49 ± 1.09 0.84 ± 0.03
RH10 68.5 ± 1.8 3.4 ± 0.1 6.4 ± 0.3 81.3 ± 1.6 19.99 ± 0.68 0.84 ± 0.03
Average 64.5 4.9 9.1 81.2 15.8 0.8
Median 64.5 4.9 9.1 81.2 14.0 0.8
Deviation 4.2 2.0 3.7 0.1 8.1 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 36.4 ± 2.8 9.8 ± 0.3 18.2 ± 1.2 91.9 ± 3.5 3.72 ± 0.24 0.40 ± 0.04
VC 46.0 ± 3.6 5.6 ± 0.1 10.4 ± 0.7 92.2 ± 3.5 8.26 ± 0.61 0.50 ± 0.05
MX1 40.8 ± 3.5 6.9 ± 0.2 12.8 ± 0.8 92.1 ± 3.5 5.95 ± 0.45 0.44 ± 0.04
MX2 41.0 ± 3.5 6.5 ± 0.2 12.0 ± 0.8 92.2 ± 3.5 6.36 ± 0.49 0.45 ± 0.05
MX3 41.3 ± 3.6 5.6 ± 0.1 10.4 ± 0.7 92.2 ± 3.5 7.40 ± 0.58 0.45 ± 0.05
RH8 42.0 ± 3.5 3.9 ± 0.1 7.3 ± 0.5 92.3 ± 3.5 10.74 ± 0.80 0.46 ± 0.04
RH9 44.9 ± 3.6 2.4 ± 0.1 4.4 ± 0.3 92.4 ± 3.5 18.96 ± 1.41 0.49 ± 0.05
RH10 45.4 ± 3.6 3.9 ± 0.1 7.2 ± 0.5 92.3 ± 3.5 11.71 ± 0.87 0.49 ± 0.05
Average 42.2 5.6 10.3 92.2 9.1 0.5
Median 42.0 5.6 10.4 92.2 8.3 0.5
Deviation 3.2 2.3 4.2 0.2 4.7 0.0

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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