CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20113030840
Observation time: 10/30/2011 303.36129 0840 [UT]

Wind spacecraft

Site
Data tables
Selection
Normals
Parameters
Previous event
Next event
Yearly list
Main page
Help

General information
Asymptotic parameters
Shock front normals
Key parameters
Wave speed and Mach numbers
Survey
Selected
Simple methods
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2011
Fractional day of year 303.361293
Arrival time of shock [seconds of day] 31215.7 ± 20.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 256.284
Y GSE location of spacecraft [Re] 35.620
Z GSE location of spacecraft [Re] 21.726
Upstream plasma points selected for analysis 0004
Upstream field points selected for analysis 0124
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0109
Minimum chisq/dof for RH8,RH9,RH10 28.75, 41.51, 64.27
Event added to database
Fri Sep 20 13:57:01 2013
Event last processed
Tue Sep 24 10:46:05 2013
Method selected
RH08
Propagation delay to Earth [minutes]
112.311 ± 18.857

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -282.2 ± 0.4 -305.2 ± 3.4
Vy GSE [km/s] 1.3 ± 1.2 -15.5 ± 2.7
Vz GSE [km/s] 5.4 ± 1.5 18.6 ± 2.8
Wi [km/s] 13.5 ± 0.7 16.0 ± 1.3
We [km/s] 425.7 ± 21.0 505.9 ± 40.0
Ni [n/cc] 11.9 ± 0.4 19.3 ± 4.3
Bx GSE [nT] -2.7 ± 0.1 -4.0 ± 0.1
By GSE [nT] 0.2 ± 0.3 2.5 ± 0.8
Bz GSE [nT] -0.7 ± 0.1 -2.5 ± 0.1
Plasma Beta
0.578 ± 0.619
0.365 ± 0.372
Sound Speed [km/s]
17.38 ± 0.86
20.65 ± 1.63
Alfven Speed [km/s]
17.83 ± 0.95
26.81 ± 1.73

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.914 ± 0.032 -0.385 ± 0.062 0.126 ± 0.126 7.25 ± 9.10 202.81 ± 3.83
VC -0.730 ± 0.049 -0.533 ± 0.045 0.427 ± 0.399 25.28 ± 7.21 216.12 ± 2.54
MX1 -0.919 ± 0.022 -0.342 ± 0.022 0.197 ± 0.194 11.34 ± 6.51 200.44 ± 1.25
MX2 -0.919 ± 0.021 -0.325 ± 0.023 0.223 ± 0.220 12.91 ± 5.35 199.49 ± 1.36
MX3 -0.918 ± 0.021 -0.314 ± 0.029 0.240 ± 0.235 13.89 ± 4.70 198.89 ± 1.77
RH08 -0.168 ± 0.038 -0.660 ± 0.018 -0.732 ± 0.560 -47.04 ± 1.22 255.71 ± 3.32
RH09 -0.195 ± 0.070 -0.665 ± 0.046 -0.721 ± 0.558 -46.11 ± 3.47 253.70 ± 5.92
RH10 -0.195 ± 0.069 -0.665 ± 0.052 -0.721 ± 0.558 -46.11 ± 4.00 253.70 ± 5.85
Average -0.620 -0.486 -0.120 -8.574 222.608
Median -0.730 -0.385 0.197 11.344 216.115
Deviation 0.365 0.162 0.508 31.751 26.865

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 33.8 ± 4.9 334.0 ± 12.5 1.60 ± 0.36
VC 55.1 ± 4.5 286.8 ± 14.9 1.60 ± 0.36
MX1 34.9 ± 4.5 335.6 ± 12.9 1.60 ± 0.36
MX2 35.4 ± 4.3 335.6 ± 13.1 1.60 ± 0.36
MX3 35.8 ± 4.2 335.5 ± 13.2 1.60 ± 0.36
RH08 72.6 ± 3.4 55.2 ± 2.4 1.60 ± 0.36
RH09 71.2 ± 3.4 65.2 ± 2.2 1.60 ± 0.36
RH10 71.2 ± 3.4 65.2 ± 7.2 1.60 ± 0.36
Average 51.2 226.6 1.60
Median 55.1 334.0 1.60
Deviation 18.3 137.5 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 75.8 ± 0.3 11.7 ± 0.1 14.8 ± 0.8 22.0 ± 0.3 6.49 ± 0.06 3.44 ± 0.03
VC 79.0 ± 0.8 7.4 ± 0.1 10.2 ± 0.5 23.8 ± 0.3 10.64 ± 0.14 3.32 ± 0.02
MX1 75.8 ± 0.3 11.5 ± 0.1 14.6 ± 0.8 22.1 ± 0.3 6.60 ± 0.07 3.42 ± 0.03
MX2 75.6 ± 0.3 11.4 ± 0.1 14.5 ± 0.8 22.2 ± 0.3 6.65 ± 0.07 3.41 ± 0.03
MX3 75.4 ± 0.3 11.3 ± 0.1 14.5 ± 0.8 22.2 ± 0.3 6.68 ± 0.08 3.40 ± 0.03
RH8 12.6 ± 1.1 3.8 ± 0.0 5.3 ± 0.3 24.6 ± 0.3 3.35 ± 0.27 0.51 ± 0.04
RH9 15.1 ± 1.1 4.0 ± 0.0 5.7 ± 0.3 24.6 ± 0.3 3.72 ± 0.24 0.61 ± 0.04
RH10 15.1 ± 1.1 4.0 ± 0.0 5.7 ± 0.3 24.6 ± 0.3 3.72 ± 0.24 0.61 ± 0.04
Average 53.0 8.1 10.7 23.3 6.0 2.3
Median 75.6 11.3 14.5 23.8 6.6 3.4
Deviation 32.2 3.7 4.5 1.2 2.4 1.5

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 46.7 ± 3.8 15.1 ± 0.6 22.3 ± 1.4 30.3 ± 0.8 3.09 ± 0.39 1.54 ± 0.10
VC 47.6 ± 2.7 9.7 ± 0.3 15.3 ± 1.0 32.5 ± 0.6 4.91 ± 0.46 1.47 ± 0.07
MX1 46.3 ± 3.5 14.9 ± 0.6 22.0 ± 1.4 30.4 ± 0.7 3.12 ± 0.37 1.52 ± 0.09
MX2 46.0 ± 3.4 14.8 ± 0.6 21.9 ± 1.4 30.5 ± 0.7 3.13 ± 0.36 1.51 ± 0.09
MX3 45.9 ± 3.3 14.7 ± 0.6 21.8 ± 1.4 30.6 ± 0.7 3.14 ± 0.36 1.50 ± 0.09
RH8 7.3 ± 4.4 4.9 ± 0.2 8.0 ± 0.5 33.5 ± 0.5 1.50 ± 0.94 0.22 ± 0.13
RH9 8.9 ± 4.4 5.3 ± 0.2 8.6 ± 0.6 33.5 ± 0.5 1.70 ± 0.90 0.27 ± 0.13
RH10 8.9 ± 4.4 5.3 ± 0.2 8.6 ± 0.6 33.5 ± 0.5 1.70 ± 0.90 0.27 ± 0.13
Average 32.2 10.6 16.1 31.8 2.8 1.0
Median 46.0 14.7 21.8 32.5 3.1 1.5
Deviation 19.7 4.8 6.7 1.5 1.1 0.7

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)

   
 

Section Photo