CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19990690133
Observation time: 03/10/1999 69.06460 0133 [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 1999
Fractional day of year 69.064601
Arrival time of shock [seconds of day] 5581.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] -8.254
Y GSE location of spacecraft [Re] -33.909
Z GSE location of spacecraft [Re] -22.358
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0251
Downstream plasma points selected for analysis 0007
Downstream field points selected for analysis 0215
Minimum chisq/dof for RH8,RH9,RH10 6.36, 13.48, 13.83
Event added to database
Mon Feb 14 11:07:49 2005
Event last processed
Mon Mar 30 18:34:17 2009
Method selected
RH08
Propagation delay to Earth [minutes]
-1.675 ± 0.372

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -411.6 ± 1.7 -456.9 ± 4.8
Vy GSE [km/s] -6.2 ± 2.8 -11.3 ± 4.2
Vz GSE [km/s] -23.3 ± 2.0 -15.2 ± 3.2
Wi [km/s] 35.0 ± 0.8 44.8 ± 1.4
We [km/s] 1107.6 ± 26.3 1415.2 ± 45.2
Ni [n/cc] 7.2 ± 0.2 13.0 ± 0.7
Bx GSE [nT] -0.6 ± 0.4 -2.0 ± 1.0
By GSE [nT] -2.5 ± 0.4 -4.7 ± 1.9
Bz GSE [nT] -3.6 ± 0.3 -6.1 ± 1.0
Plasma Beta
0.941 ± 0.938
0.807 ± 0.792
Sound Speed [km/s]
45.22 ± 1.07
57.77 ± 1.85
Alfven Speed [km/s]
36.16 ± 0.92
50.10 ± 2.55

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.929 ± 0.324 0.308 ± 0.852 0.207 ± 0.204 11.94 ± 46.59 161.65 ± 52.49
VC -0.979 ± 0.016 -0.110 ± 0.099 0.172 ± 0.170 9.91 ± 4.05 186.40 ± 5.79
MX1 -0.880 ± 0.098 0.110 ± 0.175 0.461 ± 0.425 27.47 ± 11.99 172.85 ± 11.36
MX2 -0.902 ± 0.084 0.067 ± 0.109 0.425 ± 0.398 25.18 ± 11.23 175.76 ± 6.94
MX3 -0.920 ± 0.075 0.037 ± 0.145 0.389 ± 0.368 22.91 ± 11.01 177.72 ± 9.03
RH08 -0.996 ± 0.001 -0.044 ± 0.014 0.073 ± 0.072 4.16 ± 0.87 182.51 ± 0.82
RH09 -0.988 ± 0.011 0.113 ± 0.069 0.106 ± 0.106 6.09 ± 4.02 173.48 ± 4.03
RH10 -0.988 ± 0.011 0.113 ± 0.069 0.106 ± 0.106 6.09 ± 4.02 173.48 ± 4.03
Average -0.948 0.074 0.242 14.219 175.482
Median -0.929 0.110 0.207 11.936 175.764
Deviation 0.045 0.124 0.158 9.473 7.368

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 77.1 ± 5.0 467.3 ± 14.2 1.81 ± 0.07
VC 87.4 ± 6.3 501.9 ± 15.9 1.81 ± 0.07
MX1 71.0 ± 6.3 445.7 ± 15.2 1.81 ± 0.07
MX2 74.4 ± 6.3 458.1 ± 15.5 1.81 ± 0.07
MX3 77.3 ± 6.3 468.2 ± 15.6 1.81 ± 0.07
RH08 84.7 ± 5.9 509.3 ± 15.4 1.81 ± 0.07
RH09 88.6 ± 5.5 500.6 ± 15.0 1.81 ± 0.07
RH10 88.6 ± 5.5 500.6 ± 15.0 1.81 ± 0.07
Average 81.1 481.4 1.81
Median 84.7 500.6 1.81
Deviation 7.0 24.3 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 91.8 ± 1.4 6.3 ± 0.1 8.1 ± 0.2 57.6 ± 0.9 14.52 ± 0.33 1.60 ± 0.03
VC 102.3 ± 1.9 1.3 ± 0.0 1.7 ± 0.0 57.9 ± 0.9 79.29 ± 1.71 1.77 ± 0.03
MX1 94.8 ± 1.6 9.3 ± 0.2 11.8 ± 0.3 57.2 ± 0.9 10.19 ± 0.21 1.66 ± 0.02
MX2 97.0 ± 1.7 7.7 ± 0.1 9.7 ± 0.2 57.4 ± 0.9 12.67 ± 0.26 1.69 ± 0.03
MX3 98.7 ± 1.7 6.3 ± 0.1 8.0 ± 0.2 57.6 ± 0.9 15.78 ± 0.33 1.71 ± 0.03
RH8 100.7 ± 1.7 2.6 ± 0.0 3.3 ± 0.1 57.9 ± 0.9 38.93 ± 0.85 1.74 ± 0.03
RH9 97.1 ± 1.6 0.7 ± 0.0 0.9 ± 0.0 57.9 ± 0.9 141.14 ± 3.11 1.68 ± 0.03
RH10 97.1 ± 1.6 0.7 ± 0.0 0.9 ± 0.0 57.9 ± 0.9 141.14 ± 3.11 1.68 ± 0.03
Average 97.4 4.3 5.5 57.7 56.7 1.7
Median 97.1 6.3 8.0 57.9 38.9 1.7
Deviation 3.3 3.4 4.3 0.3 56.9 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 49.6 ± 4.8 8.5 ± 0.2 11.2 ± 0.6 76.0 ± 1.3 5.86 ± 0.63 0.65 ± 0.07
VC 56.0 ± 4.9 1.7 ± 0.0 2.3 ± 0.1 76.5 ± 1.3 32.45 ± 3.27 0.73 ± 0.07
MX1 51.7 ± 4.8 12.4 ± 0.3 16.3 ± 0.8 75.5 ± 1.3 4.16 ± 0.44 0.68 ± 0.07
MX2 53.0 ± 4.8 10.2 ± 0.2 13.5 ± 0.7 75.8 ± 1.3 5.17 ± 0.54 0.70 ± 0.07
MX3 54.0 ± 4.9 8.4 ± 0.2 11.0 ± 0.6 76.1 ± 1.3 6.45 ± 0.67 0.71 ± 0.07
RH8 54.7 ± 4.8 3.5 ± 0.1 4.6 ± 0.2 76.4 ± 1.3 15.81 ± 1.59 0.72 ± 0.07
RH9 52.1 ± 4.9 0.9 ± 0.0 1.2 ± 0.1 76.5 ± 1.3 56.56 ± 5.92 0.68 ± 0.07
RH10 52.1 ± 4.9 0.9 ± 0.0 1.2 ± 0.1 76.5 ± 1.3 56.56 ± 5.92 0.68 ± 0.07
Average 52.9 5.8 7.7 76.2 22.9 0.7
Median 53.0 8.4 11.0 76.4 15.8 0.7
Deviation 2.0 4.6 6.0 0.4 22.8 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 Mon Apr 13 08:55:21 2009
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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