CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19971211202
Observation time: 05/01/1997 121.50203 1202 [UT]

Wind spacecraft

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Asymptotic parameters
Shock front normals
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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 1997
Fractional day of year 121.502031
Arrival time of shock [seconds of day] 43375.5 ± 6.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 214.987
Y GSE location of spacecraft [Re] -1.780
Z GSE location of spacecraft [Re] 23.840
Upstream plasma points selected for analysis 0011
Upstream field points selected for analysis 0304
Downstream plasma points selected for analysis 0011
Downstream field points selected for analysis 0333
Minimum chisq/dof for RH8,RH9,RH10 9.37, 13.14, 13.29
Event added to database
Mon Feb 14 11:04:35 2005
Event last processed
Mon Mar 30 16:54:07 2009
Method selected
RH09
Propagation delay to Earth [minutes]
57.643 ± 2.397

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -339.2 ± 0.8 -360.5 ± 4.1
Vy GSE [km/s] 6.7 ± 1.9 -5.8 ± 3.1
Vz GSE [km/s] -11.1 ± 1.5 24.7 ± 3.3
Wi [km/s] 27.0 ± 0.5 35.2 ± 1.8
We [km/s] 853.4 ± 17.1 1111.9 ± 56.2
Ni [n/cc] 11.3 ± 0.3 24.0 ± 0.8
Bx GSE [nT] 1.6 ± 0.4 3.5 ± 0.9
By GSE [nT] 0.1 ± 0.7 -2.3 ± 1.7
Bz GSE [nT] -0.4 ± 0.7 0.1 ± 1.1
Plasma Beta
4.864 ± 4.632
2.917 ± 2.870
Sound Speed [km/s]
34.84 ± 0.70
45.39 ± 2.29
Alfven Speed [km/s]
12.44 ± 1.45
20.76 ± 1.53

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.910 ± 0.226 -0.284 ± 0.532 0.302 ± 0.292 17.56 ± 30.83 197.33 ± 33.33
VC -0.492 ± 0.062 -0.293 ± 0.086 0.820 ± 0.550 55.10 ± 3.08 210.76 ± 9.66
MX1 -0.730 ± 0.363 -0.389 ± 0.406 0.562 ± 0.493 34.18 ± 35.16 208.03 ± 29.20
MX2 -0.529 ± 0.162 -0.296 ± 0.224 0.795 ± 0.557 52.67 ± 8.98 209.26 ± 23.33
MX3 -0.543 ± 0.154 -0.251 ± 0.220 0.801 ± 0.556 53.23 ± 9.35 204.83 ± 22.44
RH08 -0.983 ± 0.004 -0.060 ± 0.017 -0.173 ± 0.171 -9.97 ± 1.19 183.51 ± 0.97
RH09 -0.987 ± 0.011 -0.095 ± 0.070 0.128 ± 0.128 7.38 ± 4.01 185.52 ± 4.07
RH10 -0.988 ± 0.011 -0.095 ± 0.070 0.117 ± 0.117 6.74 ± 4.01 185.52 ± 4.07
Average -0.770 -0.221 0.419 27.111 198.094
Median -0.730 -0.251 0.562 34.177 204.832
Deviation 0.223 0.120 0.380 25.184 11.704

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 30.3 ± 17.0 365.2 ± 8.4 2.14 ± 0.12
VC 49.0 ± 26.6 237.5 ± 8.4 2.14 ± 0.12
MX1 36.6 ± 24.0 314.8 ± 8.5 2.14 ± 0.12
MX2 47.1 ± 26.0 250.2 ± 8.5 2.14 ± 0.12
MX3 46.4 ± 25.4 255.2 ± 8.7 2.14 ± 0.12
RH08 35.7 ± 18.3 360.7 ± 6.9 2.14 ± 0.12
RH09 29.6 ± 14.0 380.0 ± 8.4 2.14 ± 0.12
RH10 29.8 ± 14.1 379.8 ± 8.3 2.14 ± 0.12
Average 38.1 317.9 2.14
Median 36.6 360.7 2.14
Deviation 8.3 61.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 61.8 ± 1.0 10.5 ± 1.2 10.7 ± 1.3 35.5 ± 0.7 5.92 ± 0.62 1.74 ± 0.05
VC 81.8 ± 1.3 7.9 ± 0.8 8.2 ± 1.0 36.2 ± 0.8 10.51 ± 1.10 2.26 ± 0.07
MX1 75.9 ± 1.2 9.7 ± 1.1 10.0 ± 1.2 35.7 ± 0.7 7.87 ± 0.82 2.13 ± 0.06
MX2 81.6 ± 1.3 8.2 ± 0.9 8.5 ± 1.0 36.1 ± 0.8 10.09 ± 1.06 2.26 ± 0.07
MX3 81.5 ± 1.3 8.3 ± 0.9 8.6 ± 1.0 36.1 ± 0.8 9.95 ± 1.05 2.26 ± 0.07
RH8 25.8 ± 0.8 9.9 ± 1.1 10.1 ± 1.2 35.7 ± 0.7 2.64 ± 0.27 0.72 ± 0.03
RH9 47.2 ± 0.9 10.6 ± 1.2 10.8 ± 1.3 35.4 ± 0.7 4.49 ± 0.48 1.33 ± 0.04
RH10 46.5 ± 0.9 10.6 ± 1.2 10.8 ± 1.3 35.4 ± 0.7 4.43 ± 0.47 1.31 ± 0.04
Average 62.7 9.5 9.7 35.8 7.0 1.8
Median 75.9 9.9 10.1 35.7 7.9 2.1
Deviation 21.1 1.2 1.1 0.3 3.0 0.6

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 28.0 ± 4.1 17.4 ± 1.2 17.9 ± 1.3 46.8 ± 2.2 1.63 ± 0.29 0.60 ± 0.10
VC 38.3 ± 4.0 12.8 ± 0.8 13.6 ± 1.0 48.3 ± 2.2 3.01 ± 0.44 0.79 ± 0.10
MX1 35.4 ± 4.0 16.0 ± 1.1 16.7 ± 1.2 47.3 ± 2.2 2.23 ± 0.34 0.75 ± 0.10
MX2 38.1 ± 4.1 13.3 ± 0.9 14.1 ± 1.0 48.1 ± 2.2 2.88 ± 0.42 0.79 ± 0.10
MX3 38.1 ± 4.2 13.5 ± 0.9 14.3 ± 1.1 48.1 ± 2.2 2.84 ± 0.43 0.80 ± 0.10
RH8 10.3 ± 3.6 16.2 ± 1.1 16.9 ± 1.2 47.2 ± 2.2 0.64 ± 0.23 0.22 ± 0.08
RH9 20.4 ± 4.3 17.5 ± 1.2 18.0 ± 1.3 46.8 ± 2.2 1.17 ± 0.27 0.44 ± 0.10
RH10 20.0 ± 4.2 17.5 ± 1.2 18.0 ± 1.3 46.8 ± 2.2 1.16 ± 0.27 0.43 ± 0.10
Average 28.6 15.5 16.2 47.4 1.9 0.6
Median 35.4 16.2 16.9 47.3 2.2 0.8
Deviation 10.7 2.0 1.9 0.6 0.9 0.2

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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