CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20091480404
Observation time: 05/28/2009 148.17012 0404 [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 2009
Fractional day of year 148.170122
Arrival time of shock [seconds of day] 14698.5 ± 30.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 262.811
Y GSE location of spacecraft [Re] 20.796
Z GSE location of spacecraft [Re] 25.167
Upstream plasma points selected for analysis 0006
Upstream field points selected for analysis 0212
Downstream plasma points selected for analysis 0006
Downstream field points selected for analysis 0192
Minimum chisq/dof for RH8,RH9,RH10 7.44, 30.58, 61.32
Event added to database
Wed Sep 25 09:58:50 2013
Event last processed
Wed Sep 25 10:44:34 2013
Method selected
RH08
Propagation delay to Earth [minutes]
72.526 ± 3.212

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -283.7 ± 1.7 -347.8 ± 3.0
Vy GSE [km/s] 0.4 ± 1.0 -2.8 ± 0.9
Vz GSE [km/s] -4.7 ± 1.0 -24.9 ± 1.2
Wi [km/s] 12.5 ± 0.3 24.8 ± 2.3
We [km/s] 393.8 ± 10.4 785.0 ± 71.7
Ni [n/cc] 6.8 ± 0.2 19.6 ± 0.8
Bx GSE [nT] -1.0 ± 0.1 -0.8 ± 0.4
By GSE [nT] -2.1 ± 0.1 -6.4 ± 0.4
Bz GSE [nT] -0.2 ± 0.3 0.4 ± 0.5
Plasma Beta
0.399 ± 0.414
0.616 ± 0.541
Sound Speed [km/s]
16.08 ± 0.42
32.05 ± 2.93
Alfven Speed [km/s]
19.76 ± 0.63
32.18 ± 2.26

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.920 ± 0.123 -0.133 ± 0.105 -0.370 ± 0.352 -21.69 ± 19.07 188.24 ± 6.42
VC -0.952 ± 0.008 -0.048 ± 0.017 -0.301 ± 0.292 -17.54 ± 1.59 182.86 ± 1.05
MX1 -0.951 ± 0.012 -0.083 ± 0.073 -0.298 ± 0.289 -17.34 ± 1.89 185.01 ± 4.38
MX2 -0.951 ± 0.011 -0.082 ± 0.072 -0.297 ± 0.288 -17.28 ± 1.71 184.94 ± 4.31
MX3 -0.952 ± 0.011 -0.082 ± 0.071 -0.296 ± 0.287 -17.25 ± 1.74 184.91 ± 4.27
RH08 -0.962 ± 0.003 -0.076 ± 0.013 -0.263 ± 0.256 -15.22 ± 0.61 184.51 ± 0.76
RH09 -0.269 ± 0.052 -0.123 ± 0.061 -0.955 ± 0.376 -72.81 ± 3.00 204.57 ± 12.13
RH10 -0.267 ± 0.065 -0.128 ± 0.070 -0.955 ± 0.376 -72.81 ± 3.77 205.57 ± 13.84
Average -0.778 -0.094 -0.467 -31.491 190.077
Median -0.951 -0.082 -0.298 -17.342 185.013
Deviation 0.315 0.030 0.303 25.563 9.375

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 56.6 ± 2.2 364.8 ± 0.8 2.90 ± 0.15
VC 61.1 ± 2.3 374.3 ± 0.8 2.90 ± 0.15
MX1 59.0 ± 2.3 373.8 ± 0.8 2.90 ± 0.15
MX2 59.1 ± 2.3 373.9 ± 0.8 2.90 ± 0.15
MX3 59.1 ± 2.3 373.9 ± 0.8 2.90 ± 0.15
RH08 59.3 ± 2.4 376.6 ± 0.8 2.90 ± 0.15
RH09 72.3 ± 5.9 136.9 ± 0.4 2.90 ± 0.15
RH10 72.1 ± 6.0 136.1 ± 2.6 2.90 ± 0.15
Average 62.3 313.8 2.90
Median 59.3 373.9 2.90
Deviation 6.2 109.5 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 102.3 ± 1.8 7.2 ± 0.1 10.9 ± 0.3 24.5 ± 0.5 14.30 ± 0.18 4.18 ± 0.10
VC 102.7 ± 1.8 6.2 ± 0.1 9.6 ± 0.3 24.7 ± 0.5 16.53 ± 0.21 4.16 ± 0.10
MX1 102.7 ± 1.8 6.6 ± 0.1 10.2 ± 0.3 24.6 ± 0.5 15.45 ± 0.20 4.17 ± 0.10
MX2 102.7 ± 1.8 6.6 ± 0.1 10.1 ± 0.3 24.6 ± 0.5 15.48 ± 0.20 4.17 ± 0.10
MX3 102.7 ± 1.8 6.6 ± 0.1 10.1 ± 0.3 24.6 ± 0.5 15.50 ± 0.20 4.17 ± 0.10
RH8 102.5 ± 1.8 6.6 ± 0.1 10.1 ± 0.3 24.6 ± 0.5 15.58 ± 0.20 4.16 ± 0.10
RH9 56.2 ± 1.2 3.8 ± 0.1 6.0 ± 0.2 25.2 ± 0.5 14.64 ± 0.24 2.23 ± 0.05
RH10 56.0 ± 1.2 3.9 ± 0.1 6.1 ± 0.2 25.2 ± 0.5 14.44 ± 0.24 2.22 ± 0.05
Average 91.0 5.9 9.1 24.7 15.2 3.7
Median 102.7 6.6 10.1 24.6 15.5 4.2
Deviation 21.5 1.3 1.9 0.3 0.7 0.9

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 35.4 ± 2.6 13.0 ± 0.6 17.7 ± 1.2 43.6 ± 1.7 2.74 ± 0.30 0.82 ± 0.09
VC 35.5 ± 2.7 11.3 ± 0.5 15.6 ± 1.1 44.1 ± 1.8 3.16 ± 0.36 0.81 ± 0.09
MX1 35.4 ± 2.7 12.0 ± 0.5 16.6 ± 1.2 43.9 ± 1.7 2.95 ± 0.34 0.81 ± 0.09
MX2 35.4 ± 2.7 12.0 ± 0.5 16.5 ± 1.2 43.9 ± 1.7 2.96 ± 0.34 0.81 ± 0.09
MX3 35.4 ± 2.7 12.0 ± 0.5 16.5 ± 1.2 43.9 ± 1.7 2.96 ± 0.34 0.81 ± 0.09
RH8 35.3 ± 2.8 11.9 ± 0.5 16.4 ± 1.2 43.9 ± 1.7 2.97 ± 0.34 0.81 ± 0.09
RH9 19.3 ± 1.0 7.0 ± 0.3 9.8 ± 0.7 45.0 ± 1.8 2.77 ± 0.19 0.43 ± 0.03
RH10 19.2 ± 1.0 7.0 ± 0.3 9.9 ± 0.7 45.0 ± 1.8 2.74 ± 0.19 0.43 ± 0.03
Average 31.4 10.8 14.9 44.2 2.9 0.7
Median 35.4 12.0 16.5 43.9 3.0 0.8
Deviation 7.5 2.4 3.2 0.5 0.1 0.2

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