CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20151911456
Observation time: 07/10/2015 191.62290 1456 [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 2015
Fractional day of year 191.622899
Arrival time of shock [seconds of day] 53818.5 ± 40.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 202.817
Y GSE location of spacecraft [Re] 29.622
Z GSE location of spacecraft [Re] -14.749
Upstream plasma points selected for analysis 0006
Upstream field points selected for analysis 0198
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0116
Minimum chisq/dof for RH8,RH9,RH10 12.71, 17.54, 19.91
Event added to database
Thu Jan 28 17:06:00 2016
Event last processed
Tue May 17 17:08:47 2016
Method selected
RH08
Propagation delay to Earth [minutes]
57.017 ± 2.874

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -324.4 ± 0.9 -335.6 ± 1.1
Vy GSE [km/s] -30.0 ± 0.4 -41.1 ± 0.9
Vz GSE [km/s] -5.3 ± 0.8 6.3 ± 1.5
Wi [km/s] 25.3 ± 0.8 27.5 ± 0.8
We [km/s] 800.6 ± 24.6 868.5 ± 25.0
Ni [n/cc] 8.2 ± 0.3 11.3 ± 0.6
Bx GSE [nT] 4.8 ± 0.1 5.5 ± 0.1
By GSE [nT] -0.8 ± 0.2 -2.7 ± 0.3
Bz GSE [nT] 1.0 ± 0.2 1.2 ± 0.4
Plasma Beta
0.450 ± 0.462
0.455 ± 0.433
Sound Speed [km/s]
32.68 ± 1.01
35.46 ± 1.02
Alfven Speed [km/s]
37.82 ± 1.10
40.83 ± 1.43

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.920 ± 0.047 -0.377 ± 0.110 -0.109 ± 0.109 -6.26 ± 8.04 202.26 ± 6.84
VC -0.576 ± 0.056 -0.572 ± 0.056 0.584 ± 0.506 35.74 ± 3.83 224.78 ± 4.83
MX1 -0.898 ± 0.032 -0.312 ± 0.053 0.310 ± 0.299 18.04 ± 5.25 199.16 ± 3.30
MX2 -0.868 ± 0.024 -0.293 ± 0.044 0.402 ± 0.379 23.71 ± 2.91 198.66 ± 2.85
MX3 -0.793 ± 0.026 -0.241 ± 0.045 0.559 ± 0.492 34.00 ± 2.41 196.92 ± 3.21
RH08 -0.959 ± 0.007 -0.110 ± 0.017 0.263 ± 0.256 15.22 ± 1.41 186.52 ± 1.03
RH09 -0.974 ± 0.016 -0.094 ± 0.063 0.207 ± 0.204 11.93 ± 4.02 185.52 ± 3.70
RH10 -0.974 ± 0.016 -0.094 ± 0.068 0.207 ± 0.204 11.93 ± 4.00 185.52 ± 4.01
Average -0.870 -0.262 0.303 18.038 197.416
Median -0.898 -0.241 0.310 18.039 198.657
Deviation 0.134 0.166 0.222 13.486 12.979

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 32.3 ± 2.3 360.6 ± 1.5 1.38 ± 0.03
VC 69.8 ± 1.3 275.9 ± 3.4 1.38 ± 0.03
MX1 41.1 ± 1.3 364.2 ± 2.4 1.38 ± 0.03
MX2 44.8 ± 1.2 355.1 ± 2.6 1.38 ± 0.03
MX3 52.0 ± 1.2 329.7 ± 2.8 1.38 ± 0.03
RH08 31.2 ± 1.2 369.6 ± 1.9 1.38 ± 0.03
RH09 27.9 ± 1.2 371.9 ± 1.8 1.38 ± 0.03
RH10 27.9 ± 1.2 371.9 ± 7.4 1.38 ± 0.03
Average 40.9 349.8 1.38
Median 41.1 364.2 1.38
Deviation 14.5 32.9 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 50.4 ± 0.9 23.7 ± 0.4 32.0 ± 0.9 44.0 ± 0.7 2.12 ± 0.05 1.14 ± 0.02
VC 75.0 ± 0.9 8.7 ± 0.1 13.1 ± 0.4 49.2 ± 0.8 8.67 ± 0.21 1.52 ± 0.04
MX1 65.2 ± 0.9 20.4 ± 0.3 28.5 ± 0.8 45.6 ± 0.7 3.20 ± 0.07 1.43 ± 0.03
MX2 67.0 ± 0.9 18.9 ± 0.3 26.8 ± 0.8 46.3 ± 0.8 3.54 ± 0.08 1.45 ± 0.03
MX3 68.1 ± 0.9 16.1 ± 0.3 23.3 ± 0.7 47.3 ± 0.8 4.24 ± 0.10 1.44 ± 0.03
RH8 56.7 ± 0.9 24.1 ± 0.4 32.3 ± 0.9 43.8 ± 0.7 2.35 ± 0.05 1.30 ± 0.03
RH9 54.2 ± 0.9 25.3 ± 0.4 33.4 ± 1.0 43.1 ± 0.7 2.14 ± 0.05 1.26 ± 0.03
RH10 54.2 ± 0.9 25.3 ± 0.4 33.4 ± 1.0 43.1 ± 0.7 2.14 ± 0.05 1.26 ± 0.03
Average 61.4 20.3 27.8 45.3 3.6 1.3
Median 65.2 23.7 32.0 45.6 3.2 1.4
Deviation 8.6 5.8 7.0 2.2 2.2 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 37.0 ± 0.8 25.7 ± 0.3 34.5 ± 1.2 47.6 ± 0.6 1.44 ± 0.04 0.78 ± 0.01
VC 55.4 ± 0.7 9.4 ± 0.1 14.1 ± 0.5 53.3 ± 0.6 5.91 ± 0.08 1.04 ± 0.02
MX1 48.0 ± 0.3 22.1 ± 0.2 30.8 ± 1.1 49.4 ± 0.6 2.17 ± 0.02 0.97 ± 0.01
MX2 49.4 ± 0.2 20.5 ± 0.2 29.0 ± 1.0 50.1 ± 0.6 2.41 ± 0.01 0.99 ± 0.01
MX3 50.0 ± 0.3 17.4 ± 0.2 25.1 ± 0.9 51.2 ± 0.6 2.88 ± 0.01 0.98 ± 0.01
RH8 41.6 ± 0.6 26.1 ± 0.3 34.9 ± 1.2 47.4 ± 0.6 1.59 ± 0.03 0.88 ± 0.00
RH9 39.8 ± 0.7 27.4 ± 0.3 36.1 ± 1.3 46.6 ± 0.7 1.45 ± 0.03 0.85 ± 0.00
RH10 39.8 ± 0.7 27.4 ± 0.3 36.1 ± 1.3 46.6 ± 0.7 1.45 ± 0.03 0.85 ± 0.00
Average 45.1 22.0 30.1 49.0 2.4 0.9
Median 48.0 25.7 34.5 49.4 2.2 1.0
Deviation 6.4 6.2 7.5 2.4 1.5 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 Wed Jan 22 21:47:00 2020
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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