CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20160441506
Observation time: 02/13/2016 44.62943 1506 [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
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2016
Fractional day of year 44.629427
Arrival time of shock [seconds of day] 54382.5 ± 10.0
Shock type FR
Electron data availability 0
X GSE location of spacecraft [Re] 225.858
Y GSE location of spacecraft [Re] 98.205
Z GSE location of spacecraft [Re] -0.000
Upstream plasma points selected for analysis 0006
Upstream field points selected for analysis 0200
Downstream plasma points selected for analysis 0007
Downstream field points selected for analysis 0210
Minimum chisq/dof for RH8,RH9,RH10 13.18, 17.99, 18.82
Event added to database
Thu Apr 28 09:59:34 2016
Event last processed
Tue May 17 17:31:20 2016
Method selected
RH08
Propagation delay to Earth [minutes]
77.634 ± 4.244

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -387.8 ± 1.5 -418.0 ± 1.5
Vy GSE [km/s] -8.8 ± 3.1 -23.0 ± 1.3
Vz GSE [km/s] -17.1 ± 2.6 -2.9 ± 1.8
Wi [km/s] 41.4 ± 0.9 34.5 ± 1.0
We [km/s] 1309.1 ± 27.4 1091.9 ± 31.2
Ni [n/cc] 8.4 ± 0.2 5.3 ± 0.4
Bx GSE [nT] -2.8 ± 0.5 -2.8 ± 0.2
By GSE [nT] 8.0 ± 0.4 5.2 ± 0.2
Bz GSE [nT] 2.0 ± 1.0 -0.1 ± 0.4
Plasma Beta
0.395 ± 0.387
0.376 ± 0.368
Sound Speed [km/s]
53.45 ± 1.12
44.58 ± 1.27
Alfven Speed [km/s]
65.92 ± 0.63
56.40 ± 1.47

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.713 ± 0.164 0.465 ± 0.230 -0.525 ± 0.470 -31.66 ± 9.68 146.90 ± 18.04
VC -0.835 ± 0.038 -0.388 ± 0.061 0.389 ± 0.368 22.92 ± 4.20 204.90 ± 4.08
MX1 -0.863 ± 0.075 -0.319 ± 0.186 0.391 ± 0.370 23.03 ± 4.56 200.30 ± 12.30
MX2 -0.866 ± 0.089 -0.325 ± 0.228 0.379 ± 0.360 22.28 ± 3.96 200.59 ± 15.06
MX3 -0.853 ± 0.070 -0.321 ± 0.151 0.411 ± 0.386 24.29 ± 6.24 200.63 ± 10.11
RH08 -0.964 ± 0.005 -0.110 ± 0.013 0.240 ± 0.235 13.90 ± 1.02 186.52 ± 0.80
RH09 -0.975 ± 0.015 -0.077 ± 0.071 0.207 ± 0.204 11.93 ± 3.97 184.51 ± 4.16
RH10 -0.978 ± 0.015 -0.077 ± 0.071 0.196 ± 0.193 11.28 ± 3.96 184.51 ± 4.16
Average -0.881 -0.144 0.211 12.245 188.609
Median -0.863 -0.110 0.379 22.277 200.304
Deviation 0.090 0.277 0.311 18.545 18.777

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 57.7 ± 5.4 267.2 ± 1.1 0.65 ± 0.02
VC 89.9 ± 4.3 256.2 ± 2.0 0.65 ± 0.02
MX1 85.8 ± 4.2 266.3 ± 1.9 0.65 ± 0.02
MX2 86.2 ± 4.2 267.8 ± 1.9 0.65 ± 0.02
MX3 85.8 ± 4.3 262.0 ± 1.9 0.65 ± 0.02
RH08 74.8 ± 3.8 309.2 ± 1.8 0.65 ± 0.02
RH09 73.2 ± 3.7 314.5 ± 1.7 0.65 ± 0.02
RH10 73.3 ± 3.7 315.7 ± 11.1 0.65 ± 0.02
Average 78.3 282.4 0.65
Median 85.8 267.8 0.65
Deviation 10.7 25.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -14.2 ± 2.3 23.1 ± 0.3 35.3 ± 0.3 81.7 ± 0.9 -0.61 ± 0.09 -0.17 ± 0.03
VC -64.4 ± 2.6 0.1 ± 0.0 0.1 ± 0.0 84.9 ± 0.9 ******* ± 53.56 -0.76 ± 0.03
MX1 -64.5 ± 2.4 3.0 ± 0.0 4.8 ± 0.0 84.8 ± 0.9 -21.19 ± 0.98 -0.76 ± 0.03
MX2 -64.5 ± 2.4 2.7 ± 0.0 4.4 ± 0.0 84.8 ± 0.9 -23.54 ± 1.08 -0.76 ± 0.03
MX3 -64.5 ± 2.4 3.0 ± 0.0 4.8 ± 0.0 84.8 ± 0.9 -21.28 ± 0.99 -0.76 ± 0.03
RH8 -61.6 ± 1.7 11.0 ± 0.2 17.3 ± 0.2 84.2 ± 0.9 -5.61 ± 0.20 -0.73 ± 0.02
RH9 -60.8 ± 1.6 12.1 ± 0.2 19.0 ± 0.2 84.0 ± 0.9 -5.02 ± 0.17 -0.72 ± 0.02
RH10 -60.7 ± 1.6 12.0 ± 0.2 18.9 ± 0.2 84.0 ± 0.9 -5.05 ± 0.17 -0.72 ± 0.02
Average -56.9 8.4 13.1 84.1 -147.9 -0.7
Median -61.6 11.0 17.3 84.8 -5.6 -0.7
Deviation 17.4 7.6 11.7 1.1 385.1 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -21.7 ± 0.9 19.4 ± 0.4 30.2 ± 0.8 69.2 ± 1.3 -1.12 ± 0.06 -0.31 ± 0.02
VC -100.7 ± 1.8 0.0 ± 0.0 0.1 ± 0.0 71.9 ± 1.4 ******* ± 43.74 -1.40 ± 0.04
MX1 -100.7 ± 1.8 2.6 ± 0.0 4.1 ± 0.1 71.9 ± 1.4 -39.27 ± 0.82 -1.40 ± 0.03
MX2 -100.7 ± 1.8 2.3 ± 0.0 3.7 ± 0.1 71.9 ± 1.4 -43.63 ± 0.92 -1.40 ± 0.04
MX3 -100.7 ± 1.8 2.6 ± 0.0 4.1 ± 0.1 71.9 ± 1.4 -39.43 ± 0.82 -1.40 ± 0.03
RH8 -95.8 ± 1.6 9.3 ± 0.2 14.8 ± 0.4 71.3 ± 1.4 -10.35 ± 0.22 -1.34 ± 0.03
RH9 -94.4 ± 1.6 10.2 ± 0.2 16.3 ± 0.4 71.2 ± 1.4 -9.26 ± 0.20 -1.33 ± 0.03
RH10 -94.2 ± 1.6 10.1 ± 0.2 16.2 ± 0.4 71.2 ± 1.4 -9.30 ± 0.21 -1.32 ± 0.03
Average -88.6 7.1 11.2 71.3 -274.4 -1.2
Median -95.8 9.3 14.8 71.9 -10.4 -1.3
Deviation 27.2 6.4 10.0 0.9 714.9 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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