CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Ace Shock Analysis
Event ID: 20072381805
Observation time: 08/26/2007 238.75365 1805 [UT]

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Asymptotic parameters
Shock front normals
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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 2007
Fractional day of year 238.753649
Arrival time of shock [seconds of day] 65115.3 ± 60.0
Shock type SF
Electron data availability 0
X GSE location of spacecraft [Re] 232.250
Y GSE location of spacecraft [Re] 39.644
Z GSE location of spacecraft [Re] -3.034
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0560
Downstream plasma points selected for analysis 0010
Downstream field points selected for analysis 0637
Minimum chisq/dof for RH8,RH9,RH10 8.94, 9.77, 10.19
Event added to database
Tue Oct 14 16:02:44 2014
Event last processed
Wed Oct 15 12:43:06 2014
Method selected
RH08
Propagation delay to Earth [minutes]
97.282 ± 24.416

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -383.9 ± 4.0 -408.4 ± 4.8
Vy GSE [km/s] 18.0 ± 2.0 3.2 ± 8.0
Vz GSE [km/s] -27.1 ± 4.1 -67.6 ± 12.2
Wi [km/s] 53.5 ± 0.9 56.9 ± 1.4
We [km/s] 1690.5 ± 27.2 1798.4 ± 44.9
Ni [n/cc] 9.1 ± 0.5 15.3 ± 1.8
Bx GSE [nT] 11.9 ± 0.4 7.9 ± 1.0
By GSE [nT] -6.3 ± 0.3 -9.9 ± 0.9
Bz GSE [nT] 13.2 ± 0.3 8.1 ± 1.6
Plasma Beta
0.154 ± 0.155
0.455 ± 0.426
Sound Speed [km/s]
69.02 ± 1.11
73.42 ± 1.83
Alfven Speed [km/s]
136.58 ± 4.22
85.10 ± 6.97

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.367 ± 0.098 0.859 ± 0.049 -0.357 ± 0.341 -20.91 ± 4.58 113.10 ± 6.46
VC -0.520 ± 0.141 -0.310 ± 0.156 -0.796 ± 0.557 -52.71 ± 9.46 210.80 ± 15.46
MX1 -0.447 ± 0.159 0.849 ± 0.092 -0.283 ± 0.275 -16.45 ± 9.25 117.77 ± 10.64
MX2 -0.393 ± 0.106 0.857 ± 0.057 -0.334 ± 0.321 -19.51 ± 5.57 114.64 ± 7.05
MX3 -0.915 ± 0.449 0.395 ± 1.033 0.085 ± 0.084 4.86 ± 37.51 156.61 ± 64.67
RH08 -0.493 ± 0.021 -0.487 ± 0.021 0.721 ± 0.558 46.11 ± 0.00 224.62 ± 2.46
RH09 -0.921 ± 0.024 0.188 ± 0.058 0.341 ± 0.327 19.92 ± 3.63 168.47 ± 3.59
RH10 -0.925 ± 0.024 0.206 ± 0.062 0.318 ± 0.307 18.57 ± 3.75 167.47 ± 3.80
Average -0.623 0.320 -0.038 -2.514 159.185
Median -0.493 0.395 0.085 4.856 167.465
Deviation 0.251 0.527 0.491 30.954 42.978

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 39.9 ± 0.9 193.9 ± 1.6 1.73 ± 0.17
VC 38.5 ± 0.9 338.9 ± 3.8 1.73 ± 0.17
MX1 40.3 ± 0.9 219.4 ± 1.7 1.73 ± 0.17
MX2 40.0 ± 0.9 202.5 ± 1.6 1.73 ± 0.17
MX3 49.5 ± 1.4 387.6 ± 1.8 1.73 ± 0.17
RH08 69.2 ± 1.3 133.3 ± 2.0 1.73 ± 0.17
RH09 66.1 ± 1.5 361.0 ± 2.1 1.73 ± 0.17
RH10 64.6 ± 1.5 364.9 ± 18.4 1.73 ± 0.17
Average 51.0 275.2 1.73
Median 49.5 338.9 1.73
Deviation 13.4 98.0 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 28.1 ± 1.0 49.9 ± 0.6 104.7 ± 3.2 144.7 ± 3.8 0.56 ± 0.02 0.19 ± 0.00
VC 123.1 ± 3.9 51.2 ± 0.7 106.9 ± 3.3 144.2 ± 3.8 2.41 ± 0.10 0.85 ± 0.04
MX1 24.9 ± 1.2 49.6 ± 0.6 104.1 ± 3.2 144.8 ± 3.8 0.50 ± 0.03 0.17 ± 0.01
MX2 27.2 ± 1.1 49.9 ± 0.6 104.7 ± 3.2 144.7 ± 3.8 0.54 ± 0.02 0.19 ± 0.00
MX3 31.7 ± 3.6 41.5 ± 0.5 88.7 ± 2.7 147.3 ± 3.7 0.76 ± 0.09 0.21 ± 0.02
RH8 -27.8 ± 3.8 22.1 ± 0.3 48.5 ± 1.5 151.4 ± 3.6 -1.26 ± 0.17 -0.18 ± 0.03
RH9 13.2 ± 4.2 25.3 ± 0.3 55.3 ± 1.7 150.9 ± 3.6 0.52 ± 0.17 0.09 ± 0.03
RH10 14.6 ± 4.2 26.8 ± 0.3 58.6 ± 1.8 150.7 ± 3.6 0.55 ± 0.16 0.10 ± 0.03
Average 29.4 39.6 83.9 147.3 0.6 0.2
Median 27.2 49.6 104.1 147.3 0.5 0.2
Deviation 42.4 12.7 25.4 3.2 1.0 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 17.3 ± 6.7 46.8 ± 1.9 65.2 ± 5.3 102.3 ± 5.3 0.37 ± 0.13 0.17 ± 0.06
VC 73.5 ± 11.5 48.0 ± 2.0 66.6 ± 5.5 101.7 ± 5.3 1.53 ± 0.21 0.72 ± 0.10
MX1 15.0 ± 6.9 46.4 ± 1.9 64.9 ± 5.3 102.5 ± 5.3 0.32 ± 0.14 0.14 ± 0.06
MX2 16.6 ± 6.7 46.7 ± 1.9 65.2 ± 5.3 102.3 ± 5.3 0.35 ± 0.13 0.16 ± 0.06
MX3 18.6 ± 6.6 38.3 ± 1.6 55.2 ± 4.5 105.8 ± 5.4 0.48 ± 0.17 0.18 ± 0.06
RH8 -17.8 ± 7.2 20.0 ± 0.8 30.2 ± 2.5 110.7 ± 5.6 -0.88 ± 0.34 -0.16 ± 0.06
RH9 7.3 ± 7.1 22.9 ± 1.0 34.5 ± 2.8 110.1 ± 5.5 0.32 ± 0.31 0.07 ± 0.06
RH10 7.9 ± 7.0 24.4 ± 1.0 36.5 ± 3.0 109.8 ± 5.5 0.33 ± 0.29 0.07 ± 0.06
Average 17.3 36.7 52.3 105.6 0.4 0.2
Median 16.6 46.4 64.9 105.8 0.4 0.2
Deviation 25.6 12.2 15.9 4.0 0.6 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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