CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Ace Shock Analysis
Event ID: 20022752214
Observation time: 10/02/2002 275.92640 2214 [UT]

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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 2002
Fractional day of year 275.926400
Arrival time of shock [seconds of day] 80041.0 ± 16.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 0.035
Y GSE location of spacecraft [Re] 0.001
Z GSE location of spacecraft [Re] -0.003
Upstream plasma points selected for analysis 0012
Upstream field points selected for analysis 0046
Downstream plasma points selected for analysis 0011
Downstream field points selected for analysis 0043
Minimum chisq/dof for RH8,RH9,RH10 8.58, 9.79, 10.41
Event added to database
Sun May 1 22:43:18 2005
Event last processed
Tue May 3 14:35:39 2005
Method selected
RH08
Propagation delay to Earth [minutes]
0.008 ± 0.002

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -455.5 ± 4.4 -508.3 ± 3.9
Vy GSE [km/s] -11.8 ± 6.5 -15.0 ± 4.7
Vz GSE [km/s] 12.8 ± 3.7 -19.1 ± 7.9
Wi [km/s] 24.4 ± 3.1 30.7 ± 1.8
We [km/s] 772.6 ± 98.3 971.5 ± 58.4
Ni [n/cc] 4.0 ± 0.7 6.1 ± 0.3
Bx GSE [nT] -0.4 ± 0.4 1.1 ± 0.3
By GSE [nT] 2.7 ± 0.5 7.2 ± 0.3
Bz GSE [nT] -2.1 ± 0.7 1.2 ± 1.6
Plasma Beta
0.413 ± 0.373
0.211 ± 0.205
Sound Speed [km/s]
31.54 ± 4.01
39.66 ± 2.39
Alfven Speed [km/s]
38.84 ± 2.08
66.93 ± 1.70

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.333 ± 0.395 0.615 ± 0.290 -0.715 ± 0.557 -45.62 ± 18.66 118.43 ± 35.35
VC -0.859 ± 0.068 -0.057 ± 0.127 -0.509 ± 0.459 -30.57 ± 7.66 183.79 ± 8.47
MX1 -0.566 ± 0.396 0.631 ± 0.366 -0.531 ± 0.474 -32.07 ± 21.64 131.87 ± 33.86
MX2 -0.767 ± 0.098 0.519 ± 0.139 -0.378 ± 0.359 -22.22 ± 5.61 145.94 ± 10.30
MX3 -0.872 ± 0.061 0.430 ± 0.115 -0.234 ± 0.230 -13.56 ± 6.76 153.75 ± 7.49
RH08 -0.483 ± 0.010 -0.359 ± 0.013 0.799 ± 0.557 53.02 ± 0.00 216.60 ± 1.59
RH09 -0.483 ± 0.052 -0.359 ± 0.064 0.799 ± 0.557 53.02 ± 2.22 216.60 ± 7.28
RH10 -0.470 ± 0.056 -0.375 ± 0.064 0.799 ± 0.557 53.02 ± 2.71 218.61 ± 7.25
Average -0.604 0.131 0.004 1.878 173.197
Median -0.483 0.430 -0.234 -13.558 183.791
Deviation 0.202 0.462 0.672 43.307 41.008

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 19.9 ± 10.0 259.0 ± 57.9 1.58 ± 0.34
VC 69.4 ± 8.6 577.0 ± 101.8 1.58 ± 0.34
MX1 30.0 ± 7.6 382.9 ± 69.0 1.58 ± 0.34
MX2 44.7 ± 6.8 494.5 ± 80.7 1.58 ± 0.34
MX3 55.2 ± 6.4 548.5 ± 84.4 1.58 ± 0.34
RH08 46.3 ± 7.6 233.8 ± 24.7 1.58 ± 0.34
RH09 46.3 ± 7.6 233.8 ± 24.7 1.58 ± 0.34
RH10 45.1 ± 7.5 226.7 ± 24.3 1.58 ± 0.34
Average 44.6 369.5 1.58
Median 46.3 382.9 1.58
Deviation 14.9 151.3 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 123.7 ± 3.8 27.2 ± 1.7 36.5 ± 2.0 42.2 ± 1.8 4.57 ± 0.32 2.94 ± 0.15
VC 191.4 ± 3.2 8.7 ± 0.5 13.7 ± 0.7 49.4 ± 2.3 22.16 ± 1.41 3.88 ± 0.20
MX1 139.5 ± 4.6 23.9 ± 1.5 33.7 ± 1.8 44.1 ± 1.9 5.84 ± 0.39 3.17 ± 0.16
MX2 156.1 ± 4.8 18.6 ± 1.1 27.6 ± 1.5 46.6 ± 2.1 8.42 ± 0.54 3.36 ± 0.17
MX3 159.4 ± 5.0 14.5 ± 0.8 22.1 ± 1.2 48.0 ± 2.2 11.06 ± 0.70 3.32 ± 0.17
RH8 -0.5 ± 3.8 18.0 ± 1.0 26.8 ± 1.4 46.8 ± 2.1 -0.03 ± 0.21 -0.01 ± 0.08
RH9 -0.5 ± 3.8 18.0 ± 1.0 26.8 ± 1.4 46.8 ± 2.1 -0.03 ± 0.21 -0.01 ± 0.08
RH10 -2.0 ± 3.8 18.4 ± 1.1 27.4 ± 1.5 46.7 ± 2.1 -0.11 ± 0.20 -0.04 ± 0.08
Average 95.9 18.4 26.8 46.3 6.5 2.1
Median 139.5 18.4 27.4 46.8 5.8 3.2
Deviation 82.5 5.6 6.9 2.3 7.6 1.8

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 85.3 ± 6.4 36.2 ± 2.0 62.9 ± 1.6 68.9 ± 1.7 2.35 ± 0.12 1.24 ± 0.09
VC 129.6 ± 5.3 12.1 ± 0.6 23.5 ± 0.6 76.9 ± 2.1 10.70 ± 0.58 1.69 ± 0.08
MX1 94.7 ± 5.7 32.5 ± 1.7 58.0 ± 1.5 70.7 ± 1.8 2.91 ± 0.14 1.34 ± 0.08
MX2 105.2 ± 5.2 25.7 ± 1.3 47.6 ± 1.2 73.5 ± 2.0 4.10 ± 0.21 1.43 ± 0.08
MX3 107.3 ± 4.8 20.1 ± 1.0 38.2 ± 1.0 75.2 ± 2.0 5.34 ± 0.29 1.43 ± 0.07
RH8 -1.7 ± 6.3 24.9 ± 1.2 46.2 ± 1.2 73.7 ± 2.0 -0.06 ± 0.25 -0.02 ± 0.09
RH9 -1.7 ± 6.3 24.9 ± 1.2 46.2 ± 1.2 73.7 ± 2.0 -0.06 ± 0.25 -0.02 ± 0.09
RH10 -2.6 ± 6.3 25.4 ± 1.3 47.2 ± 1.2 73.5 ± 2.0 -0.09 ± 0.24 -0.03 ± 0.09
Average 64.5 25.2 46.2 73.3 3.1 0.9
Median 94.7 25.4 47.2 73.7 2.9 1.3
Deviation 56.5 7.3 12.0 2.5 3.7 0.8

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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