CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20092461458
Observation time: 09/03/2009 246.62384 1458 [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 246.623837
Arrival time of shock [seconds of day] 53899.5 ± 40.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 199.744
Y GSE location of spacecraft [Re] 5.753
Z GSE location of spacecraft [Re] -20.678
Upstream plasma points selected for analysis 0005
Upstream field points selected for analysis 0177
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0121
Minimum chisq/dof for RH8,RH9,RH10 21.32, 57.86, 90.60
Event added to database
Wed Sep 25 10:15:16 2013
Event last processed
Wed Sep 25 10:56:52 2013
Method selected
RH08
Propagation delay to Earth [minutes]
51.202 ± 2.255

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -330.1 ± 1.5 -369.1 ± 2.0
Vy GSE [km/s] -4.5 ± 1.9 -18.5 ± 1.2
Vz GSE [km/s] -2.6 ± 1.2 19.8 ± 1.1
Wi [km/s] 19.5 ± 0.9 24.5 ± 1.9
We [km/s] 618.1 ± 29.9 775.4 ± 59.1
Ni [n/cc] 5.2 ± 0.2 11.1 ± 1.1
Bx GSE [nT] 1.8 ± 0.1 2.5 ± 0.4
By GSE [nT] -1.1 ± 0.2 -3.3 ± 0.4
Bz GSE [nT] 0.3 ± 0.2 2.5 ± 0.4
Plasma Beta
0.910 ± 0.862
0.614 ± 0.700
Sound Speed [km/s]
25.24 ± 1.22
31.65 ± 2.41
Alfven Speed [km/s]
20.59 ± 0.79
31.75 ± 2.78

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.924 ± 0.064 0.119 ± 0.204 0.363 ± 0.347 21.31 ± 9.29 172.67 ± 12.65
VC -0.828 ± 0.023 -0.296 ± 0.029 0.476 ± 0.436 28.41 ± 2.72 199.66 ± 1.93
MX1 -0.955 ± 0.030 -0.009 ± 0.108 0.296 ± 0.287 17.23 ± 5.79 180.55 ± 6.47
MX2 -0.961 ± 0.029 -0.047 ± 0.078 0.272 ± 0.265 15.78 ± 6.01 182.79 ± 4.68
MX3 -0.964 ± 0.030 -0.069 ± 0.068 0.256 ± 0.251 14.85 ± 6.57 184.11 ± 4.03
RH08 -0.959 ± 0.006 -0.110 ± 0.021 0.263 ± 0.256 15.22 ± 1.27 186.52 ± 1.26
RH09 -0.410 ± 0.063 0.600 ± 0.055 0.687 ± 0.550 43.40 ± 3.88 124.35 ± 5.52
RH10 -0.372 ± 0.066 0.611 ± 0.056 0.698 ± 0.553 44.29 ± 4.03 121.34 ± 5.69
Average -0.797 0.100 0.414 25.064 168.997
Median -0.924 -0.009 0.363 21.315 182.795
Deviation 0.254 0.333 0.187 12.422 29.466

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 38.3 ± 3.5 385.3 ± 1.3 2.20 ± 0.30
VC 61.6 ± 3.9 364.2 ± 1.5 2.20 ± 0.30
MX1 41.0 ± 3.7 399.4 ± 1.4 2.20 ± 0.30
MX2 42.0 ± 3.8 402.0 ± 1.4 2.20 ± 0.30
MX3 42.5 ± 4.0 403.2 ± 1.4 2.20 ± 0.30
RH08 44.7 ± 4.0 402.6 ± 1.4 2.20 ± 0.30
RH09 56.1 ± 6.9 173.8 ± 0.9 2.20 ± 0.30
RH10 58.0 ± 7.0 158.8 ± 3.2 2.20 ± 0.30
Average 48.0 336.2 2.20
Median 44.7 399.4 2.20
Deviation 9.0 105.7 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 81.8 ± 1.2 13.8 ± 0.3 16.1 ± 0.6 29.5 ± 0.8 5.93 ± 0.14 2.77 ± 0.10
VC 90.7 ± 1.7 7.8 ± 0.2 9.8 ± 0.4 31.6 ± 0.8 11.63 ± 0.31 2.87 ± 0.10
MX1 84.9 ± 1.4 13.1 ± 0.3 15.5 ± 0.6 29.8 ± 0.8 6.47 ± 0.16 2.85 ± 0.10
MX2 85.2 ± 1.5 12.9 ± 0.3 15.3 ± 0.6 29.9 ± 0.8 6.61 ± 0.17 2.85 ± 0.10
MX3 85.3 ± 1.5 12.8 ± 0.3 15.2 ± 0.6 30.0 ± 0.8 6.69 ± 0.17 2.85 ± 0.10
RH8 86.3 ± 1.6 12.2 ± 0.3 14.6 ± 0.6 30.2 ± 0.8 7.07 ± 0.18 2.86 ± 0.10
RH9 43.0 ± 1.3 9.3 ± 0.2 11.5 ± 0.4 31.2 ± 0.8 4.65 ± 0.17 1.38 ± 0.07
RH10 40.5 ± 1.3 8.8 ± 0.2 10.9 ± 0.4 31.4 ± 0.8 4.62 ± 0.19 1.29 ± 0.07
Average 74.7 11.3 13.6 30.5 6.7 2.5
Median 85.2 12.8 15.2 30.2 6.6 2.8
Deviation 20.5 2.3 2.5 0.8 2.2 0.7

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 39.3 ± 1.5 19.4 ± 0.7 24.9 ± 2.2 40.5 ± 1.4 2.03 ± 0.09 0.97 ± 0.04
VC 43.7 ± 1.5 10.9 ± 0.4 15.1 ± 1.3 43.6 ± 1.5 4.00 ± 0.14 1.00 ± 0.03
MX1 40.9 ± 1.7 18.4 ± 0.6 24.0 ± 2.1 41.0 ± 1.4 2.22 ± 0.10 1.00 ± 0.03
MX2 41.0 ± 1.7 18.1 ± 0.6 23.6 ± 2.1 41.1 ± 1.4 2.27 ± 0.10 1.00 ± 0.03
MX3 41.0 ± 1.8 17.9 ± 0.6 23.4 ± 2.0 41.2 ± 1.4 2.29 ± 0.10 1.00 ± 0.03
RH8 41.5 ± 1.8 17.1 ± 0.6 22.6 ± 2.0 41.5 ± 1.4 2.42 ± 0.10 1.00 ± 0.03
RH9 20.1 ± 1.1 13.0 ± 0.4 17.7 ± 1.5 43.0 ± 1.5 1.55 ± 0.13 0.47 ± 0.04
RH10 18.9 ± 1.1 12.3 ± 0.4 16.8 ± 1.5 43.2 ± 1.5 1.54 ± 0.14 0.44 ± 0.04
Average 35.8 15.9 21.0 41.9 2.3 0.9
Median 41.0 17.9 23.4 41.5 2.3 1.0
Deviation 10.1 3.3 3.8 1.2 0.8 0.3

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