CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20153650017
Observation time: 12/31/2015 365.01245 0017 [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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Simple methods
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2015
Fractional day of year 365.012448
Arrival time of shock [seconds of day] 1075.5 ± 20.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 194.350
Y GSE location of spacecraft [Re] 13.417
Z GSE location of spacecraft [Re] -13.098
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0235
Downstream plasma points selected for analysis 0004
Downstream field points selected for analysis 0264
Minimum chisq/dof for RH8,RH9,RH10 8.76, 18.34, 20.30
Event added to database
Thu Apr 28 09:52:14 2016
Event last processed
Tue May 17 17:29:04 2016
Method selected
RH08
Propagation delay to Earth [minutes]
55.799 ± 6.074

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -337.2 ± 5.0 -398.1 ± 4.7
Vy GSE [km/s] -17.5 ± 3.9 -25.6 ± 5.5
Vz GSE [km/s] -17.7 ± 8.5 -95.8 ± 6.8
Wi [km/s] 22.8 ± 5.0 46.2 ± 6.7
We [km/s] 721.7 ± 157.0 1462.3 ± 211.9
Ni [n/cc] 6.9 ± 1.2 16.2 ± 2.6
Bx GSE [nT] -3.5 ± 0.3 -5.9 ± 1.1
By GSE [nT] 3.4 ± 0.2 10.5 ± 0.6
Bz GSE [nT] -1.2 ± 0.7 2.2 ± 2.1
Plasma Beta
0.320 ± 0.211
0.501 ± 0.592
Sound Speed [km/s]
29.46 ± 6.41
59.70 ± 8.65
Alfven Speed [km/s]
42.49 ± 3.83
68.22 ± 13.52

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.733 ± 0.153 0.144 ± 0.203 -0.665 ± 0.543 -41.66 ± 12.99 168.86 ± 15.68
VC -0.617 ± 0.061 -0.084 ± 0.064 -0.782 ± 0.560 -51.46 ± 4.48 187.77 ± 5.85
MX1 -0.692 ± 0.037 0.106 ± 0.117 -0.714 ± 0.557 -45.56 ± 2.67 171.27 ± 9.64
MX2 -0.700 ± 0.041 0.095 ± 0.104 -0.708 ± 0.556 -45.06 ± 3.12 172.30 ± 8.51
MX3 -0.703 ± 0.044 0.090 ± 0.101 -0.705 ± 0.555 -44.86 ± 3.45 172.68 ± 8.19
RH08 -0.769 ± 0.010 -0.473 ± 0.012 0.430 ± 0.401 25.48 ± 1.10 211.59 ± 0.82
RH09 -0.826 ± 0.040 -0.450 ± 0.063 0.341 ± 0.327 19.92 ± 4.02 208.58 ± 4.29
RH10 -0.818 ± 0.040 -0.446 ± 0.063 0.363 ± 0.346 21.29 ± 4.04 208.58 ± 4.30
Average -0.732 -0.127 -0.305 -20.238 187.705
Median -0.703 0.090 -0.665 -41.660 187.774
Deviation 0.070 0.281 0.567 35.305 19.011

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 40.5 ± 6.0 424.0 ± 8.6 2.56 ± 0.63
VC 56.3 ± 6.2 400.6 ± 8.9 2.56 ± 0.63
MX1 44.0 ± 6.3 415.1 ± 8.8 2.56 ± 0.63
MX2 44.4 ± 6.2 418.2 ± 8.7 2.56 ± 0.63
MX3 44.5 ± 6.1 419.4 ± 8.7 2.56 ± 0.63
RH08 84.3 ± 5.4 290.5 ± 1.2 2.56 ± 0.63
RH09 79.9 ± 5.0 330.4 ± 1.6 2.56 ± 0.63
RH10 80.3 ± 5.1 323.5 ± 7.5 2.56 ± 0.63
Average 59.3 377.7 2.56
Median 56.3 415.1 2.56
Deviation 19.0 53.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 167.5 ± 5.4 19.5 ± 2.7 32.3 ± 2.9 48.3 ± 2.5 8.75 ± 1.16 3.48 ± 0.25
VC 177.1 ± 6.9 13.6 ± 1.8 23.6 ± 2.1 50.3 ± 2.6 13.18 ± 1.58 3.53 ± 0.27
MX1 170.9 ± 5.8 18.2 ± 2.5 30.5 ± 2.7 48.8 ± 2.6 9.53 ± 1.22 3.51 ± 0.25
MX2 171.3 ± 5.8 18.1 ± 2.5 30.4 ± 2.7 48.8 ± 2.6 9.62 ± 1.23 3.52 ± 0.25
MX3 171.4 ± 5.8 18.0 ± 2.5 30.3 ± 2.7 48.8 ± 2.6 9.65 ± 1.24 3.52 ± 0.25
RH8 30.5 ± 4.9 2.4 ± 0.3 4.3 ± 0.4 52.0 ± 2.8 13.10 ± 2.94 0.59 ± 0.09
RH9 50.2 ± 4.8 4.2 ± 0.5 7.5 ± 0.7 51.9 ± 2.8 12.20 ± 2.09 0.97 ± 0.09
RH10 46.3 ± 4.9 4.0 ± 0.5 7.1 ± 0.6 51.9 ± 2.8 11.77 ± 2.10 0.89 ± 0.09
Average 123.2 12.2 20.7 50.1 11.0 2.5
Median 170.9 18.0 30.3 50.3 11.8 3.5
Deviation 67.2 7.4 12.3 1.6 1.8 1.4

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 72.2 ± 7.7 36.8 ± 3.7 51.9 ± 10.3 83.4 ± 11.4 1.99 ± 0.40 0.89 ± 0.21
VC 77.7 ± 6.8 25.5 ± 2.6 37.8 ± 7.5 87.5 ± 11.5 3.09 ± 0.57 0.91 ± 0.20
MX1 73.9 ± 7.6 34.3 ± 3.4 49.0 ± 9.7 84.4 ± 11.4 2.19 ± 0.43 0.90 ± 0.21
MX2 74.2 ± 7.6 34.1 ± 3.4 48.8 ± 9.7 84.5 ± 11.4 2.21 ± 0.44 0.90 ± 0.21
MX3 74.3 ± 7.5 34.0 ± 3.4 48.7 ± 9.6 84.6 ± 11.4 2.22 ± 0.44 0.90 ± 0.21
RH8 13.4 ± 4.4 4.4 ± 0.5 6.8 ± 1.4 91.0 ± 11.6 3.01 ± 0.95 0.15 ± 0.05
RH9 22.8 ± 4.0 7.8 ± 0.8 12.0 ± 2.4 90.8 ± 11.6 2.93 ± 0.51 0.25 ± 0.05
RH10 21.1 ± 4.0 7.5 ± 0.8 11.5 ± 2.3 90.8 ± 11.6 2.84 ± 0.53 0.23 ± 0.04
Average 53.7 23.0 33.3 87.1 2.6 0.6
Median 73.9 34.0 48.7 87.5 2.8 0.9
Deviation 28.8 14.1 19.7 3.3 0.4 0.4

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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