CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20010900114
Observation time: 03/31/2001 90.05186 0114 [UT]

Wind spacecraft

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Asymptotic parameters
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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 2001
Fractional day of year 90.051858
Arrival time of shock [seconds of day] 4480.5 ± 9.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] -0.570
Y GSE location of spacecraft [Re] -242.715
Z GSE location of spacecraft [Re] 3.200
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0267
Downstream plasma points selected for analysis 0008
Downstream field points selected for analysis 0234
Minimum chisq/dof for RH8,RH9,RH10 7.46, 11.74, 12.54
Event added to database
Mon Feb 14 11:13:11 2005
Event last processed
Mon Mar 30 20:41:53 2009
Method selected
MX2
Propagation delay to Earth [minutes]
-22.701 ± 4.532

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -419.0 ± 3.3 -537.8 ± 6.6
Vy GSE [km/s] -4.6 ± 13.2 -86.5 ± 11.0
Vz GSE [km/s] -4.8 ± 4.0 -61.4 ± 16.7
Wi [km/s] 30.1 ± 1.2 65.9 ± 10.7
We [km/s] 950.4 ± 39.5 2082.8 ± 336.8
Ni [n/cc] 35.5 ± 2.4 106.5 ± 22.5
Bx GSE [nT] -0.9 ± 1.3 -1.4 ± 11.1
By GSE [nT] 3.5 ± 1.5 1.3 ± 16.8
Bz GSE [nT] -4.9 ± 1.4 0.6 ± 17.6
Plasma Beta
2.415 ± 1.433
2.341 ± 1.743
Sound Speed [km/s]
38.80 ± 1.61
85.03 ± 13.75
Alfven Speed [km/s]
23.31 ± 5.48
52.33 ± 13.59

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.998 ± 0.052 0.051 ± 0.947 0.028 ± 0.028 1.58 ± 42.35 177.10 ± 54.37
VC -0.770 ± 0.050 -0.524 ± 0.061 -0.363 ± 0.346 -21.31 ± 6.16 214.24 ± 4.20
MX1 -0.770 ± 0.185 -0.564 ± 0.245 -0.299 ± 0.289 -17.37 ± 13.18 216.20 ± 17.99
MX2 -0.772 ± 0.084 -0.540 ± 0.111 -0.337 ± 0.324 -19.70 ± 7.73 214.97 ± 8.02
MX3 -0.767 ± 0.079 -0.547 ± 0.101 -0.336 ± 0.323 -19.65 ± 8.13 215.51 ± 7.25
RH08 -0.925 ± 0.005 -0.311 ± 0.011 -0.218 ± 0.214 -12.58 ± 0.86 198.55 ± 0.68
RH09 -0.801 ± 0.041 0.595 ± 0.055 0.061 ± 0.061 3.52 ± 4.03 143.40 ± 3.95
RH10 -0.780 ± 0.043 0.623 ± 0.054 0.061 ± 0.061 3.52 ± 4.03 141.39 ± 3.95
Average -0.823 -0.152 -0.175 -10.249 190.170
Median -0.772 -0.311 -0.218 -12.584 214.239
Deviation 0.089 0.513 0.192 11.183 32.342

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 77.9 ± 17.1 588.7 ± 23.5 3.05 ± 0.65
VC 81.4 ± 16.5 566.1 ± 34.7 3.05 ± 0.65
MX1 85.6 ± 16.6 561.5 ± 35.1 3.05 ± 0.65
MX2 83.1 ± 16.5 564.9 ± 34.9 3.05 ± 0.65
MX3 83.4 ± 16.5 562.8 ± 34.9 3.05 ± 0.65
RH08 79.3 ± 17.5 612.5 ± 31.6 3.05 ± 0.65
RH09 64.0 ± 13.2 397.2 ± 10.0 3.05 ± 0.65
RH10 63.3 ± 12.8 380.9 ± 9.7 3.05 ± 0.65
Average 77.2 529.3 3.05
Median 81.4 564.9 3.05
Deviation 8.7 88.4 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 170.8 ± 2.7 4.1 ± 0.8 4.9 ± 1.1 45.3 ± 2.2 43.96 ± 14.54 3.78 ± 0.22
VC 239.2 ± 9.9 2.9 ± 0.6 3.5 ± 0.8 45.4 ± 2.3 86.20 ± 28.29 5.28 ± 0.43
MX1 234.7 ± 10.3 1.5 ± 0.3 1.8 ± 0.4 45.5 ± 2.3 164.50 ± 54.01 5.17 ± 0.43
MX2 237.5 ± 10.1 2.4 ± 0.5 2.8 ± 0.7 45.5 ± 2.3 106.12 ± 34.83 5.24 ± 0.43
MX3 237.4 ± 10.2 2.3 ± 0.5 2.7 ± 0.6 45.5 ± 2.3 111.33 ± 36.54 5.24 ± 0.43
RH8 222.3 ± 7.4 3.7 ± 0.7 4.3 ± 1.0 45.4 ± 2.3 64.20 ± 21.11 4.91 ± 0.36
RH9 64.5 ± 5.9 8.8 ± 1.8 10.2 ± 2.4 44.6 ± 2.1 7.80 ± 2.74 1.45 ± 0.12
RH10 57.3 ± 6.3 9.0 ± 1.9 10.5 ± 2.5 44.6 ± 2.1 6.75 ± 2.42 1.28 ± 0.13
Average 183.0 4.3 5.1 45.2 73.9 4.0
Median 234.7 3.7 4.3 45.4 86.2 5.2
Deviation 78.7 2.9 3.4 0.4 54.3 1.7

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 57.9 ± 6.6 9.0 ± 1.7 10.9 ± 2.8 100.7 ± 9.1 6.72 ± 1.96 0.58 ± 0.10
VC 84.2 ± 9.7 6.4 ± 1.2 7.8 ± 2.0 100.9 ± 9.1 13.54 ± 3.14 0.84 ± 0.11
MX1 80.2 ± 9.8 3.3 ± 0.6 4.0 ± 1.0 101.1 ± 9.1 25.05 ± 5.80 0.80 ± 0.11
MX2 82.6 ± 9.8 5.2 ± 1.0 6.3 ± 1.6 101.0 ± 9.1 16.46 ± 3.82 0.82 ± 0.11
MX3 82.5 ± 9.8 4.9 ± 0.9 6.0 ± 1.6 101.0 ± 9.1 17.26 ± 3.99 0.82 ± 0.11
RH8 74.6 ± 7.8 8.0 ± 1.5 9.8 ± 2.5 100.8 ± 9.1 9.64 ± 2.40 0.75 ± 0.10
RH9 21.5 ± 6.1 19.2 ± 3.6 22.9 ± 6.0 99.2 ± 9.1 1.21 ± 0.61 0.22 ± 0.07
RH10 19.0 ± 6.2 19.7 ± 3.7 23.5 ± 6.1 99.1 ± 9.1 1.06 ± 0.58 0.20 ± 0.07
Average 62.8 9.5 11.4 100.5 11.4 0.6
Median 80.2 8.0 9.8 100.9 13.5 0.8
Deviation 27.6 6.4 7.6 0.8 8.3 0.3

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 Mon Apr 13 08:55:21 2009
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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