CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19970641254
Observation time: 03/05/1997 64.53800 1254 [UT]

Wind spacecraft

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Asymptotic parameters
Shock front normals
Key parameters
Wave speed and Mach numbers
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Selected
Simple methods
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 1997
Fractional day of year 64.538003
Arrival time of shock [seconds of day] 46483.5 ± 10.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 222.156
Y GSE location of spacecraft [Re] 19.620
Z GSE location of spacecraft [Re] -5.470
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0249
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0248
Minimum chisq/dof for RH8,RH9,RH10 6.38, 16.83, 17.09
Event added to database
Mon Feb 14 11:04:05 2005
Event last processed
Mon Mar 30 16:42:54 2009
Method selected
RH08
Propagation delay to Earth [minutes]
58.173 ± 2.802

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -320.2 ± 2.2 -362.6 ± 2.1
Vy GSE [km/s] -8.2 ± 0.8 -17.5 ± 1.1
Vz GSE [km/s] -9.9 ± 2.8 -17.6 ± 2.5
Wi [km/s] 20.9 ± 1.8 34.2 ± 0.7
We [km/s] 661.8 ± 57.0 1083.0 ± 22.9
Ni [n/cc] 7.7 ± 0.3 17.3 ± 0.9
Bx GSE [nT] 3.8 ± 0.1 3.5 ± 0.4
By GSE [nT] -0.5 ± 0.2 -2.4 ± 0.6
Bz GSE [nT] 2.3 ± 0.1 5.3 ± 0.6
Plasma Beta
0.358 ± 0.358
0.909 ± 0.885
Sound Speed [km/s]
27.02 ± 2.33
44.21 ± 0.93
Alfven Speed [km/s]
35.26 ± 1.31
36.02 ± 1.30

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.979 ± 0.022 -0.115 ± 0.098 -0.170 ± 0.169 -9.80 ± 6.30 186.70 ± 5.72
VC -0.962 ± 0.015 -0.211 ± 0.031 -0.173 ± 0.171 -9.96 ± 4.43 192.37 ± 1.85
MX1 -0.960 ± 0.025 -0.195 ± 0.096 -0.199 ± 0.196 -11.47 ± 4.66 191.48 ± 5.71
MX2 -0.961 ± 0.023 -0.194 ± 0.083 -0.196 ± 0.194 -11.31 ± 4.90 191.42 ± 4.95
MX3 -0.962 ± 0.023 -0.193 ± 0.078 -0.194 ± 0.192 -11.21 ± 5.09 191.35 ± 4.65
RH08 -0.975 ± 0.002 -0.077 ± 0.009 -0.207 ± 0.204 -11.93 ± 0.59 184.51 ± 0.55
RH09 -0.999 ± 0.003 -0.026 ± 0.068 -0.028 ± 0.028 -1.60 ± 4.06 181.50 ± 3.91
RH10 -1.000 ± 0.001 -0.009 ± 0.068 -0.017 ± 0.017 -0.96 ± 4.06 180.50 ± 3.91
Average -0.975 -0.128 -0.148 -8.531 187.480
Median -0.962 -0.115 -0.173 -9.964 191.353
Deviation 0.017 0.082 0.079 4.537 4.844

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 25.1 ± 1.9 393.9 ± 5.4 2.26 ± 0.14
VC 28.2 ± 2.0 389.9 ± 5.4 2.26 ± 0.14
MX1 26.5 ± 2.0 389.2 ± 5.4 2.26 ± 0.14
MX2 26.6 ± 2.0 389.5 ± 5.4 2.26 ± 0.14
MX3 26.6 ± 2.0 389.6 ± 5.4 2.26 ± 0.14
RH08 22.2 ± 1.9 392.4 ± 5.4 2.26 ± 0.14
RH09 30.6 ± 2.0 396.5 ± 5.2 2.26 ± 0.14
RH10 31.0 ± 2.0 396.1 ± 5.2 2.26 ± 0.14
Average 27.1 392.1 2.26
Median 26.6 392.4 2.26
Deviation 2.9 3.0 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 77.9 ± 2.2 22.4 ± 1.3 31.9 ± 1.2 38.4 ± 0.9 3.49 ± 0.26 2.03 ± 0.06
VC 78.4 ± 2.2 21.5 ± 1.2 31.1 ± 1.2 38.9 ± 0.9 3.65 ± 0.26 2.02 ± 0.06
MX1 78.1 ± 2.3 22.0 ± 1.3 31.6 ± 1.2 38.6 ± 0.9 3.56 ± 0.26 2.02 ± 0.06
MX2 78.1 ± 2.2 22.0 ± 1.3 31.5 ± 1.2 38.6 ± 0.9 3.56 ± 0.26 2.02 ± 0.06
MX3 78.1 ± 2.2 22.0 ± 1.3 31.5 ± 1.2 38.6 ± 0.9 3.57 ± 0.26 2.02 ± 0.06
RH8 77.4 ± 2.3 23.2 ± 1.4 32.6 ± 1.2 37.9 ± 0.9 3.35 ± 0.25 2.04 ± 0.05
RH9 76.0 ± 2.2 20.8 ± 1.1 30.3 ± 1.1 39.3 ± 1.0 3.66 ± 0.27 1.93 ± 0.06
RH10 75.7 ± 2.2 20.7 ± 1.1 30.2 ± 1.1 39.4 ± 1.0 3.67 ± 0.27 1.92 ± 0.07
Average 77.5 21.8 31.4 38.7 3.6 2.0
Median 78.1 22.0 31.5 38.6 3.6 2.0
Deviation 1.1 0.8 0.8 0.5 0.1 0.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 34.0 ± 2.3 29.5 ± 0.7 32.6 ± 1.2 48.8 ± 0.7 1.15 ± 0.10 0.70 ± 0.05
VC 34.4 ± 2.3 28.3 ± 0.7 31.7 ± 1.1 49.5 ± 0.7 1.21 ± 0.10 0.69 ± 0.05
MX1 34.1 ± 2.3 29.0 ± 0.7 32.2 ± 1.2 49.1 ± 0.7 1.18 ± 0.10 0.69 ± 0.05
MX2 34.1 ± 2.3 29.0 ± 0.7 32.2 ± 1.2 49.1 ± 0.7 1.18 ± 0.10 0.69 ± 0.05
MX3 34.1 ± 2.3 29.0 ± 0.7 32.2 ± 1.2 49.1 ± 0.7 1.18 ± 0.10 0.69 ± 0.05
RH8 33.8 ± 2.3 30.6 ± 0.8 33.3 ± 1.2 48.1 ± 0.7 1.11 ± 0.10 0.70 ± 0.05
RH9 33.2 ± 2.2 27.4 ± 0.6 31.0 ± 1.1 50.0 ± 0.7 1.21 ± 0.10 0.66 ± 0.05
RH10 33.1 ± 2.2 27.2 ± 0.6 30.9 ± 1.1 50.1 ± 0.7 1.22 ± 0.10 0.66 ± 0.05
Average 33.9 28.8 32.0 49.2 1.2 0.7
Median 34.1 29.0 32.2 49.1 1.2 0.7
Deviation 0.5 1.1 0.8 0.7 0.0 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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