CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19992651209
Observation time: 09/22/1999 265.50655 1209 [UT]

Wind spacecraft

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


General Information (About, Top)

Year 1999
Fractional day of year 265.506545
Arrival time of shock [seconds of day] 43765.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 83.214
Y GSE location of spacecraft [Re] -8.089
Z GSE location of spacecraft [Re] 1.318
Upstream plasma points selected for analysis 0010
Upstream field points selected for analysis 0303
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0303
Minimum chisq/dof for RH8,RH9,RH10 9.98, 14.89, 15.40
Event added to database
Mon Feb 14 11:08:52 2005
Event last processed
Mon Mar 30 19:04:25 2009
Method selected
RH08
Propagation delay to Earth [minutes]
16.581 ± 1.265

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -368.1 ± 4.3 -453.6 ± 12.0
Vy GSE [km/s] 40.7 ± 6.0 -7.9 ± 13.1
Vz GSE [km/s] 56.0 ± 5.4 74.5 ± 10.7
Wi [km/s] 40.6 ± 1.3 64.5 ± 12.0
We [km/s] 1284.0 ± 41.7 2041.1 ± 380.6
Ni [n/cc] 17.0 ± 0.7 44.7 ± 11.5
Bx GSE [nT] -3.5 ± 0.8 6.7 ± 8.7
By GSE [nT] -6.8 ± 2.3 2.1 ± 7.8
Bz GSE [nT] -8.3 ± 1.2 6.1 ± 6.3
Plasma Beta
0.442 ± 0.462
2.087 ± 1.683
Sound Speed [km/s]
52.42 ± 1.70
83.33 ± 15.54
Alfven Speed [km/s]
61.18 ± 1.98
50.40 ± 14.23

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.886 ± 0.411 0.463 ± 0.787 0.031 ± 0.031 1.79 ± 30.44 152.42 ± 50.89
VC -0.852 ± 0.086 -0.490 ± 0.146 0.185 ± 0.183 10.68 ± 7.12 209.90 ± 9.78
MX1 -0.746 ± 0.116 -0.101 ± 0.295 0.658 ± 0.541 41.18 ± 9.59 187.68 ± 22.66
MX2 -0.689 ± 0.255 -0.489 ± 0.328 0.535 ± 0.477 32.34 ± 15.75 215.35 ± 26.31
MX3 -0.692 ± 0.102 -0.362 ± 0.135 0.624 ± 0.527 38.63 ± 7.91 207.62 ± 10.64
RH08 -0.985 ± 0.002 -0.148 ± 0.009 0.084 ± 0.084 4.81 ± 0.54 188.52 ± 0.55
RH09 -0.990 ± 0.010 -0.113 ± 0.069 0.084 ± 0.084 4.81 ± 4.02 186.52 ± 3.99
RH10 -0.990 ± 0.010 -0.113 ± 0.069 0.084 ± 0.084 4.81 ± 4.02 186.52 ± 3.99
Average -0.854 -0.169 0.286 17.380 191.816
Median -0.852 -0.113 0.185 10.681 188.524
Deviation 0.131 0.305 0.271 16.919 19.882

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 88.8 ± 8.0 428.3 ± 36.1 2.64 ± 0.68
VC 65.4 ± 5.2 465.9 ± 34.8 2.64 ± 0.68
MX1 79.3 ± 4.1 430.3 ± 35.0 2.64 ± 0.68
MX2 83.5 ± 7.2 410.1 ± 35.3 2.64 ± 0.68
MX3 88.6 ± 6.4 412.8 ± 35.4 2.64 ± 0.68
RH08 70.8 ± 3.4 510.7 ± 37.2 2.64 ± 0.68
RH09 71.9 ± 3.5 511.4 ± 37.4 2.64 ± 0.68
RH10 71.9 ± 3.5 511.4 ± 37.4 2.64 ± 0.68
Average 77.5 460.1 2.64
Median 79.3 465.9 2.64
Deviation 8.8 45.5 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 81.6 ± 6.0 0.9 ± 0.0 1.3 ± 0.0 80.6 ± 2.0 94.23 ± 8.62 1.01 ± 0.09
VC 161.9 ± 2.8 16.9 ± 0.4 25.5 ± 0.8 78.8 ± 1.9 9.57 ± 0.31 2.06 ± 0.07
MX1 122.9 ± 3.2 7.4 ± 0.2 11.3 ± 0.4 80.2 ± 2.0 16.63 ± 0.69 1.53 ± 0.06
MX2 146.4 ± 4.0 4.5 ± 0.1 7.0 ± 0.2 80.5 ± 2.0 32.25 ± 1.14 1.82 ± 0.06
MX3 137.8 ± 3.9 1.0 ± 0.0 1.5 ± 0.0 80.6 ± 2.0 144.37 ± 5.43 1.71 ± 0.06
RH8 149.2 ± 3.4 13.3 ± 0.3 20.1 ± 0.7 79.5 ± 1.9 11.26 ± 0.49 1.88 ± 0.08
RH9 146.8 ± 3.5 12.5 ± 0.3 19.0 ± 0.6 79.6 ± 1.9 11.77 ± 0.53 1.85 ± 0.08
RH10 146.8 ± 3.5 12.5 ± 0.3 19.0 ± 0.6 79.6 ± 1.9 11.77 ± 0.53 1.85 ± 0.08
Average 136.7 8.6 13.1 79.9 41.5 1.7
Median 146.8 12.5 19.0 80.2 16.6 1.8
Deviation 24.8 6.1 9.1 0.6 50.4 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 27.8 ± 15.3 0.9 ± 0.2 1.1 ± 0.3 98.5 ± 14.4 32.51 ± 18.93 0.28 ± 0.14
VC 61.8 ± 5.6 17.7 ± 3.3 21.0 ± 5.9 96.8 ± 14.3 3.61 ± 0.74 0.65 ± 0.10
MX1 42.1 ± 4.2 7.7 ± 1.4 9.3 ± 2.6 98.1 ± 14.4 5.63 ± 1.27 0.44 ± 0.08
MX2 53.8 ± 3.6 4.8 ± 0.9 5.7 ± 1.6 98.3 ± 14.4 11.62 ± 2.12 0.56 ± 0.10
MX3 49.5 ± 3.2 1.0 ± 0.2 1.2 ± 0.3 98.5 ± 14.4 50.87 ± 9.63 0.51 ± 0.09
RH8 56.3 ± 9.7 13.9 ± 2.5 16.6 ± 4.7 97.5 ± 14.4 4.21 ± 1.13 0.58 ± 0.10
RH9 55.2 ± 10.1 13.1 ± 2.4 15.6 ± 4.4 97.6 ± 14.4 4.39 ± 1.21 0.57 ± 0.10
RH10 55.2 ± 10.1 13.1 ± 2.4 15.6 ± 4.4 97.6 ± 14.4 4.39 ± 1.21 0.57 ± 0.10
Average 50.2 9.0 10.8 97.9 14.7 0.5
Median 55.2 13.1 15.6 98.1 5.6 0.6
Deviation 10.7 6.3 7.5 0.6 17.6 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 Mon Apr 13 08:55:21 2009
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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