CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20011260906
Observation time: 05/06/2001 126.37925 0906 [UT]

Wind spacecraft

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Asymptotic parameters
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Wave speed and Mach numbers
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Simple methods
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2001
Fractional day of year 126.379253
Arrival time of shock [seconds of day] 32767.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 15.996
Y GSE location of spacecraft [Re] -227.793
Z GSE location of spacecraft [Re] -7.700
Upstream plasma points selected for analysis 0010
Upstream field points selected for analysis 0301
Downstream plasma points selected for analysis 0011
Downstream field points selected for analysis 0335
Minimum chisq/dof for RH8,RH9,RH10 18.77, 20.13, 20.39
Event added to database
Mon Feb 14 11:13:44 2005
Event last processed
Mon Mar 30 20:59:32 2009
Method selected
RH08
Propagation delay to Earth [minutes]
-10.874 ± 0.258

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -314.5 ± 1.0 -328.4 ± 1.3
Vy GSE [km/s] -21.5 ± 1.5 -44.0 ± 0.9
Vz GSE [km/s] -6.3 ± 1.7 -14.5 ± 2.9
Wi [km/s] 23.6 ± 0.4 25.9 ± 0.3
We [km/s] 744.9 ± 13.1 819.4 ± 8.9
Ni [n/cc] 8.7 ± 0.2 13.4 ± 0.4
Bx GSE [nT] -4.2 ± 0.2 -6.4 ± 0.2
By GSE [nT] 0.9 ± 0.2 4.3 ± 0.3
Bz GSE [nT] 2.4 ± 0.3 1.4 ± 0.6
Plasma Beta
0.413 ± 0.416
0.309 ± 0.314
Sound Speed [km/s]
30.41 ± 0.53
33.45 ± 0.36
Alfven Speed [km/s]
36.65 ± 0.35
46.69 ± 1.06

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.703 ± 0.103 -0.227 ± 0.132 0.674 ± 0.547 42.41 ± 8.40 197.89 ± 10.51
VC -0.502 ± 0.047 -0.814 ± 0.037 -0.293 ± 0.285 -17.06 ± 5.89 238.32 ± 3.09
MX1 -0.854 ± 0.075 -0.520 ± 0.123 0.025 ± 0.025 1.43 ± 10.84 211.33 ± 8.23
MX2 -0.793 ± 0.068 -0.569 ± 0.092 -0.220 ± 0.216 -12.70 ± 5.28 215.66 ± 6.63
MX3 -0.714 ± 0.065 -0.575 ± 0.079 -0.399 ± 0.377 -23.53 ± 3.87 218.87 ± 6.16
RH08 -0.959 ± 0.002 -0.231 ± 0.000 -0.162 ± 0.161 -9.32 ± 0.65 193.54 ± 0.00
RH09 -0.965 ± 0.013 -0.215 ± 0.042 -0.151 ± 0.150 -8.68 ± 3.42 192.53 ± 2.49
RH10 -0.965 ± 0.014 -0.215 ± 0.044 -0.151 ± 0.150 -8.68 ± 3.79 192.53 ± 2.62
Average -0.807 -0.421 -0.085 -4.517 207.585
Median -0.793 -0.231 -0.151 -8.675 211.335
Deviation 0.164 0.229 0.330 20.288 16.456

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 28.3 ± 1.3 248.6 ± 4.9 1.54 ± 0.05
VC 82.4 ± 4.5 257.0 ± 7.4 1.54 ± 0.05
MX1 50.0 ± 4.6 347.2 ± 5.7 1.54 ± 0.05
MX2 62.5 ± 4.9 336.7 ± 6.6 1.54 ± 0.05
MX3 72.1 ± 5.0 314.7 ± 7.3 1.54 ± 0.05
RH08 45.8 ± 5.2 365.6 ± 5.3 1.54 ± 0.05
RH09 44.7 ± 5.2 365.7 ± 5.2 1.54 ± 0.05
RH10 44.7 ± 5.2 365.7 ± 5.2 1.54 ± 0.05
Average 53.8 325.1 1.54
Median 50.0 347.2 1.54
Deviation 17.4 48.0 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 27.0 ± 0.8 23.8 ± 0.3 32.3 ± 0.3 41.3 ± 0.3 1.14 ± 0.03 0.65 ± 0.02
VC 79.8 ± 2.0 3.1 ± 0.0 4.9 ± 0.0 47.5 ± 0.4 25.72 ± 0.68 1.68 ± 0.05
MX1 67.6 ± 1.5 15.9 ± 0.2 23.5 ± 0.2 44.9 ± 0.4 4.24 ± 0.10 1.51 ± 0.04
MX2 73.9 ± 1.8 11.1 ± 0.1 16.9 ± 0.2 46.3 ± 0.4 6.64 ± 0.17 1.60 ± 0.04
MX3 75.3 ± 2.0 7.3 ± 0.1 11.3 ± 0.1 47.1 ± 0.4 10.36 ± 0.30 1.60 ± 0.05
RH8 57.9 ± 1.5 17.5 ± 0.2 25.5 ± 0.2 44.3 ± 0.4 3.30 ± 0.09 1.31 ± 0.04
RH9 56.7 ± 1.4 17.9 ± 0.2 26.0 ± 0.2 44.1 ± 0.4 3.16 ± 0.09 1.29 ± 0.04
RH10 56.7 ± 1.4 17.9 ± 0.2 26.0 ± 0.2 44.1 ± 0.4 3.16 ± 0.09 1.29 ± 0.04
Average 61.9 14.3 20.8 44.9 7.2 1.4
Median 67.6 17.5 25.5 44.9 4.2 1.5
Deviation 16.8 6.7 9.1 2.0 8.0 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 17.7 ± 1.4 27.2 ± 0.2 41.1 ± 0.9 50.6 ± 0.9 0.65 ± 0.05 0.35 ± 0.03
VC 52.0 ± 1.3 3.6 ± 0.0 6.2 ± 0.1 57.3 ± 0.8 14.43 ± 0.44 0.91 ± 0.03
MX1 44.2 ± 0.9 18.4 ± 0.1 30.0 ± 0.7 54.4 ± 0.8 2.40 ± 0.06 0.81 ± 0.02
MX2 48.2 ± 1.4 12.9 ± 0.1 21.6 ± 0.5 56.0 ± 0.8 3.73 ± 0.13 0.86 ± 0.03
MX3 49.1 ± 1.8 8.4 ± 0.1 14.3 ± 0.3 56.8 ± 0.8 5.82 ± 0.24 0.86 ± 0.03
RH8 38.0 ± 1.5 20.2 ± 0.2 32.5 ± 0.7 53.8 ± 0.8 1.88 ± 0.09 0.71 ± 0.03
RH9 37.2 ± 1.5 20.7 ± 0.2 33.2 ± 0.7 53.6 ± 0.8 1.80 ± 0.08 0.69 ± 0.03
RH10 37.2 ± 1.5 20.7 ± 0.2 33.2 ± 0.7 53.6 ± 0.8 1.80 ± 0.08 0.69 ± 0.03
Average 40.4 16.5 26.5 54.5 4.1 0.7
Median 44.2 20.2 32.5 54.4 2.4 0.8
Deviation 10.9 7.7 11.6 2.2 4.5 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 Mon Apr 13 08:55:21 2009
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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