CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20232761131
Observation time: 10/03/2023 276.48002 1131 [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
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2023
Fractional day of year 276.480017
Arrival time of shock [seconds of day] 41473.5 ± 30.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 197.862
Y GSE location of spacecraft [Re] -34.637
Z GSE location of spacecraft [Re] -9.915
Upstream plasma points selected for analysis 0012
Upstream field points selected for analysis 0411
Downstream plasma points selected for analysis 0013
Downstream field points selected for analysis 0462
Minimum chisq/dof for RH8,RH9,RH10 5.07, 7.77, 7.84
Event added to database
Wed Oct 11 17:03:58 2023
Event last processed
Thu Oct 12 10:46:39 2023
Method selected
RH09
Propagation delay to Earth [minutes]
53.005 ± 1.114

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -323.1 ± 4.9 -346.3 ± 2.6
Vy GSE [km/s] -30.3 ± 1.9 -38.1 ± 2.5
Vz GSE [km/s] 14.5 ± 3.0 22.9 ± 3.1
Wi [km/s] 20.8 ± 0.9 25.2 ± 1.2
We [km/s] 658.9 ± 28.0 796.6 ± 37.8
Ni [n/cc] 5.1 ± 0.1 7.9 ± 0.7
Bx GSE [nT] -2.9 ± 0.6 -3.8 ± 0.3
By GSE [nT] 4.0 ± 0.5 5.4 ± 0.5
Bz GSE [nT] -0.4 ± 0.4 -2.6 ± 0.8
Plasma Beta
0.180 ± 0.178
0.209 ± 0.198
Sound Speed [km/s]
26.90 ± 1.14
32.52 ± 1.54
Alfven Speed [km/s]
49.18 ± 0.95
55.76 ± 4.20

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.774 ± 0.428 0.524 ± 0.615 0.355 ± 0.339 20.80 ± 21.61 145.89 ± 45.22
VC -0.892 ± 0.069 -0.301 ± 0.116 0.337 ± 0.323 19.67 ± 10.24 198.63 ± 7.37
MX1 -0.961 ± 0.065 -0.110 ± 0.411 0.255 ± 0.249 14.78 ± 10.05 186.51 ± 24.50
MX2 -0.951 ± 0.070 -0.188 ± 0.275 0.244 ± 0.239 14.14 ± 10.64 191.18 ± 16.53
MX3 -0.942 ± 0.067 -0.246 ± 0.176 0.229 ± 0.225 13.26 ± 12.68 194.63 ± 10.67
RH08 -0.996 ± 0.001 -0.079 ± 0.009 0.050 ± 0.050 2.88 ± 0.52 184.51 ± 0.50
RH09 -0.998 ± 0.005 -0.044 ± 0.068 0.050 ± 0.050 2.88 ± 4.06 182.51 ± 3.91
RH10 -0.998 ± 0.005 -0.044 ± 0.068 0.050 ± 0.050 2.88 ± 4.06 182.51 ± 3.91
Average -0.939 -0.061 0.196 11.411 183.295
Median -0.951 -0.079 0.244 14.136 186.509
Deviation 0.076 0.255 0.129 7.529 16.205

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 32.8 ± 4.3 286.9 ± 0.8 1.55 ± 0.15
VC 75.1 ± 7.3 376.9 ± 1.3 1.55 ± 0.15
MX1 62.9 ± 7.5 390.4 ± 1.3 1.55 ± 0.15
MX2 67.1 ± 7.6 390.1 ± 1.3 1.55 ± 0.15
MX3 70.2 ± 7.8 389.0 ± 1.3 1.55 ± 0.15
RH08 58.8 ± 8.4 393.1 ± 1.3 1.55 ± 0.15
RH09 56.8 ± 8.4 392.0 ± 1.3 1.55 ± 0.15
RH10 56.8 ± 8.4 392.0 ± 15.8 1.55 ± 0.15
Average 60.1 376.3 1.55
Median 62.9 390.4 1.55
Deviation 12.8 36.5 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 47.6 ± 3.0 21.5 ± 0.8 41.3 ± 0.8 51.8 ± 1.0 2.22 ± 0.20 0.92 ± 0.07
VC 74.6 ± 4.2 6.1 ± 0.2 12.6 ± 0.2 55.7 ± 1.1 12.27 ± 0.91 1.34 ± 0.09
MX1 73.0 ± 4.5 11.0 ± 0.4 22.4 ± 0.4 55.0 ± 1.1 6.67 ± 0.53 1.33 ± 0.09
MX2 73.5 ± 4.5 9.3 ± 0.3 19.1 ± 0.4 55.3 ± 1.1 7.92 ± 0.63 1.33 ± 0.09
MX3 73.9 ± 4.5 8.1 ± 0.3 16.6 ± 0.3 55.5 ± 1.1 9.19 ± 0.72 1.33 ± 0.09
RH8 68.4 ± 4.9 12.5 ± 0.4 25.5 ± 0.5 54.6 ± 1.1 5.46 ± 0.49 1.25 ± 0.10
RH9 67.6 ± 4.9 13.3 ± 0.5 26.9 ± 0.5 54.5 ± 1.1 5.10 ± 0.46 1.24 ± 0.10
RH10 67.6 ± 4.9 13.3 ± 0.5 26.9 ± 0.5 54.5 ± 1.1 5.10 ± 0.46 1.24 ± 0.10
Average 68.3 11.9 23.9 54.6 6.7 1.2
Median 73.0 12.5 25.5 55.0 6.7 1.3
Deviation 8.9 4.7 8.7 1.2 3.1 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 30.6 ± 2.7 25.7 ± 1.0 46.8 ± 3.5 59.3 ± 3.7 1.19 ± 0.12 0.52 ± 0.05
VC 48.6 ± 2.4 7.2 ± 0.3 14.3 ± 1.1 64.2 ± 3.5 6.73 ± 0.39 0.76 ± 0.06
MX1 47.6 ± 2.5 13.0 ± 0.5 25.4 ± 1.9 63.3 ± 3.5 3.66 ± 0.23 0.76 ± 0.06
MX2 47.9 ± 2.5 11.1 ± 0.4 21.7 ± 1.6 63.6 ± 3.5 4.33 ± 0.27 0.75 ± 0.06
MX3 48.2 ± 2.5 9.6 ± 0.3 18.9 ± 1.4 63.9 ± 3.5 5.03 ± 0.31 0.76 ± 0.06
RH8 44.2 ± 2.6 14.9 ± 0.5 28.9 ± 2.2 62.9 ± 3.5 2.96 ± 0.21 0.70 ± 0.06
RH9 43.6 ± 2.6 15.8 ± 0.6 30.5 ± 2.3 62.6 ± 3.6 2.76 ± 0.20 0.70 ± 0.06
RH10 43.6 ± 2.6 15.8 ± 0.6 30.5 ± 2.3 62.6 ± 3.6 2.76 ± 0.20 0.70 ± 0.06
Average 44.3 14.1 27.1 62.8 3.7 0.7
Median 47.6 14.9 28.9 63.3 3.7 0.8
Deviation 5.9 5.6 9.9 1.5 1.7 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 Thu Oct 12 13:23:07 2023
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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