CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Ace Shock Analysis
Event ID: 20010621039
Observation time: 03/03/2001 62.44397 1039 [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 2001
Fractional day of year 62.443970
Arrival time of shock [seconds of day] 38359.0 ± 16.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 0.036
Y GSE location of spacecraft [Re] -0.006
Z GSE location of spacecraft [Re] 0.002
Upstream plasma points selected for analysis 0013
Upstream field points selected for analysis 0058
Downstream plasma points selected for analysis 0010
Downstream field points selected for analysis 0049
Minimum chisq/dof for RH8,RH9,RH10 4.05, 5.90, 6.03
Event added to database
Sat Apr 30 21:49:31 2005
Event last processed
Tue May 3 13:49:42 2005
Method selected
RH08
Propagation delay to Earth [minutes]
0.007 ± 0.000

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -444.6 ± 4.2 -504.9 ± 9.9
Vy GSE [km/s] 25.7 ± 1.8 21.2 ± 11.6
Vz GSE [km/s] 12.2 ± 3.0 19.7 ± 10.2
Wi [km/s] 27.7 ± 1.3 49.4 ± 6.6
We [km/s] 876.5 ± 42.0 1563.5 ± 207.9
Ni [n/cc] 4.0 ± 0.3 7.6 ± 0.8
Bx GSE [nT] -1.8 ± 0.6 -0.4 ± 1.9
By GSE [nT] 1.4 ± 0.3 7.6 ± 1.9
Bz GSE [nT] -3.9 ± 0.4 -1.0 ± 3.0
Plasma Beta
0.309 ± 0.301
0.606 ± 0.403
Sound Speed [km/s]
35.78 ± 1.71
63.83 ± 8.49
Alfven Speed [km/s]
50.16 ± 2.14
68.25 ± 9.73

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.560 ± 0.439 0.524 ± 0.449 -0.642 ± 0.535 -39.95 ± 32.27 136.90 ± 38.32
VC -0.990 ± 0.024 -0.046 ± 0.190 0.134 ± 0.133 7.70 ± 9.74 182.69 ± 11.00
MX1 -0.850 ± 0.383 -0.245 ± 0.668 0.465 ± 0.428 27.72 ± 42.59 196.10 ± 44.51
MX2 -0.961 ± 0.064 0.155 ± 0.213 0.228 ± 0.224 13.17 ± 13.77 170.83 ± 12.67
MX3 -0.952 ± 0.055 0.089 ± 0.154 0.294 ± 0.285 17.07 ± 10.36 174.66 ± 9.28
RH08 -0.963 ± 0.004 0.214 ± 0.013 0.162 ± 0.161 9.32 ± 0.87 167.47 ± 0.79
RH09 -0.920 ± 0.027 0.309 ± 0.067 0.240 ± 0.235 13.90 ± 3.98 161.45 ± 4.17
RH10 -0.920 ± 0.027 0.309 ± 0.067 0.240 ± 0.235 13.90 ± 3.98 161.45 ± 4.17
Average -0.890 0.163 0.140 7.855 168.943
Median -0.920 0.214 0.240 13.900 170.831
Deviation 0.140 0.237 0.332 20.244 17.337

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 20.4 ± 7.6 306.8 ± 19.0 1.91 ± 0.27
VC 74.4 ± 9.0 573.6 ± 38.4 1.91 ± 0.27
MX1 82.4 ± 8.7 497.7 ± 36.0 1.91 ± 0.27
MX2 76.0 ± 9.5 560.1 ± 32.9 1.91 ± 0.27
MX3 80.8 ± 9.4 555.7 ± 33.6 1.91 ± 0.27
RH08 71.5 ± 9.5 559.9 ± 32.1 1.91 ± 0.27
RH09 74.7 ± 9.6 536.4 ± 28.5 1.91 ± 0.27
RH10 74.7 ± 9.6 536.4 ± 28.5 1.91 ± 0.27
Average 69.4 515.8 1.91
Median 74.7 555.7 1.91
Deviation 20.1 87.6 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 52.4 ± 1.5 31.9 ± 1.2 47.0 ± 2.0 52.8 ± 1.6 1.65 ± 0.06 0.99 ± 0.05
VC 133.0 ± 4.5 7.9 ± 0.2 13.5 ± 0.6 61.1 ± 1.2 16.83 ± 0.44 2.18 ± 0.10
MX1 120.2 ± 4.7 3.9 ± 0.1 6.7 ± 0.3 61.5 ± 1.2 31.11 ± 0.93 1.95 ± 0.10
MX2 126.0 ± 4.8 7.1 ± 0.2 12.1 ± 0.5 61.3 ± 1.2 17.82 ± 0.50 2.06 ± 0.10
MX3 126.7 ± 4.8 4.7 ± 0.1 8.1 ± 0.3 61.5 ± 1.2 27.07 ± 0.77 2.06 ± 0.10
RH8 124.2 ± 4.6 9.3 ± 0.2 15.9 ± 0.7 60.9 ± 1.2 13.30 ± 0.36 2.04 ± 0.10
RH9 116.5 ± 4.7 7.7 ± 0.2 13.2 ± 0.6 61.2 ± 1.2 15.11 ± 0.44 1.90 ± 0.10
RH10 116.5 ± 4.7 7.7 ± 0.2 13.2 ± 0.6 61.2 ± 1.2 15.11 ± 0.44 1.90 ± 0.10
Average 114.4 10.0 16.2 60.2 17.2 1.9
Median 124.2 7.7 13.2 61.2 16.8 2.0
Deviation 25.7 9.0 12.8 3.0 8.9 0.4

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 25.8 ± 6.7 50.6 ± 2.3 64.0 ± 9.1 79.4 ± 3.1 0.51 ± 0.12 0.33 ± 0.08
VC 72.1 ± 9.6 12.4 ± 0.5 18.4 ± 2.6 93.4 ± 3.4 5.84 ± 0.88 0.77 ± 0.11
MX1 64.3 ± 9.2 6.1 ± 0.2 9.1 ± 1.3 94.0 ± 3.4 10.66 ± 1.77 0.69 ± 0.11
MX2 67.0 ± 7.0 11.1 ± 0.4 16.5 ± 2.4 93.5 ± 3.4 6.07 ± 0.76 0.72 ± 0.09
MX3 67.5 ± 7.3 7.3 ± 0.3 11.0 ± 1.6 93.9 ± 3.4 9.23 ± 1.21 0.72 ± 0.09
RH8 65.8 ± 6.7 14.6 ± 0.6 21.7 ± 3.1 93.0 ± 3.3 4.51 ± 0.55 0.71 ± 0.08
RH9 60.5 ± 5.3 12.1 ± 0.5 18.0 ± 2.6 93.4 ± 3.4 5.03 ± 0.56 0.65 ± 0.07
RH10 60.5 ± 5.3 12.1 ± 0.5 18.0 ± 2.6 93.4 ± 3.4 5.03 ± 0.56 0.65 ± 0.07
Average 60.4 15.8 22.1 91.8 5.9 0.7
Median 65.8 12.1 18.0 93.4 5.8 0.7
Deviation 14.5 14.4 17.4 5.0 3.1 0.1

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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