CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Ace Shock Analysis
Event ID: 20070840430
Observation time: 03/25/2007 84.18776 0430 [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 84.187757
Arrival time of shock [seconds of day] 16222.2 ± 60.0
Shock type SR
Electron data availability 0
X GSE location of spacecraft [Re] 239.767
Y GSE location of spacecraft [Re] 32.103
Z GSE location of spacecraft [Re] -22.062
Upstream plasma points selected for analysis 0013
Upstream field points selected for analysis 0781
Downstream plasma points selected for analysis 0011
Downstream field points selected for analysis 0691
Minimum chisq/dof for RH8,RH9,RH10 20.11, 21.51, 23.16
Event added to database
Tue Oct 14 14:34:42 2014
Event last processed
Wed Oct 15 12:29:12 2014
Method selected
RH08
Propagation delay to Earth [minutes]
54.610 ± 30.455

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -362.9 ± 3.4 -374.5 ± 2.9
Vy GSE [km/s] -41.6 ± 2.3 -44.2 ± 3.7
Vz GSE [km/s] -49.4 ± 3.0 -58.0 ± 3.2
Wi [km/s] 27.3 ± 1.3 47.5 ± 1.5
We [km/s] 864.0 ± 39.8 1502.1 ± 46.1
Ni [n/cc] 11.4 ± 0.4 7.4 ± 0.7
Bx GSE [nT] 5.5 ± 0.3 7.1 ± 0.4
By GSE [nT] 9.9 ± 0.1 3.6 ± 0.8
Bz GSE [nT] -0.4 ± 0.5 -4.8 ± 0.6
Plasma Beta
0.138 ± 0.135
0.411 ± 0.419
Sound Speed [km/s]
35.27 ± 1.62
61.32 ± 1.88
Alfven Speed [km/s]
73.53 ± 1.44
74.93 ± 6.09

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.748 ± 0.030 -0.490 ± 0.040 0.448 ± 0.415 26.63 ± 2.54 213.25 ± 2.96
VC -0.803 ± 0.183 -0.206 ± 0.326 -0.559 ± 0.492 -33.96 ± 17.31 194.41 ± 23.07
MX1 -0.881 ± 0.285 0.215 ± 0.646 -0.421 ± 0.394 -24.88 ± 33.44 166.30 ± 41.80
MX2 -0.906 ± 0.167 -0.363 ± 0.367 0.216 ± 0.213 12.49 ± 22.55 201.84 ± 23.14
MX3 -0.897 ± 0.114 0.105 ± 0.190 -0.429 ± 0.400 -25.40 ± 15.03 173.34 ± 12.12
RH08 -0.450 ± 0.025 0.399 ± 0.024 -0.799 ± 0.557 -53.02 ± 2.00 138.38 ± 2.00
RH09 -0.450 ± 0.053 0.399 ± 0.057 -0.799 ± 0.557 -53.02 ± 2.41 138.38 ± 6.65
RH10 -0.475 ± 0.054 0.393 ± 0.059 -0.788 ± 0.559 -51.97 ± 2.85 140.39 ± 6.46
Average -0.701 0.056 -0.391 -25.393 170.788
Median -0.748 0.215 -0.429 -25.401 173.343
Deviation 0.208 0.363 0.477 30.350 30.180

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 36.1 ± 1.7 258.5 ± 1.0 0.65 ± 0.07
VC 56.6 ± 2.2 301.0 ± 0.9 0.65 ± 0.07
MX1 76.9 ± 2.0 306.9 ± 1.0 0.65 ± 0.07
MX2 40.0 ± 1.5 315.9 ± 1.1 0.65 ± 0.07
MX3 70.8 ± 2.0 316.5 ± 1.0 0.65 ± 0.07
RH08 80.9 ± 2.3 164.3 ± 0.8 0.65 ± 0.07
RH09 80.9 ± 2.3 164.3 ± 0.8 0.65 ± 0.07
RH10 81.9 ± 2.3 173.1 ± 9.1 0.65 ± 0.07
Average 65.5 250.1 0.65
Median 76.9 301.0 0.65
Deviation 18.9 71.0 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -11.1 ± 3.0 27.2 ± 1.2 59.4 ± 1.2 76.9 ± 1.5 -0.41 ± 0.10 -0.14 ± 0.04
VC -26.7 ± 2.8 17.9 ± 0.7 40.5 ± 0.8 79.6 ± 1.7 -1.48 ± 0.12 -0.33 ± 0.03
MX1 -24.7 ± 3.1 7.2 ± 0.3 16.6 ± 0.3 81.2 ± 1.7 -3.42 ± 0.33 -0.30 ± 0.03
MX2 -17.4 ± 3.1 25.6 ± 1.1 56.3 ± 1.1 77.4 ± 1.6 -0.68 ± 0.11 -0.22 ± 0.04
MX3 -25.9 ± 3.0 10.6 ± 0.4 24.2 ± 0.5 80.9 ± 1.7 -2.45 ± 0.22 -0.32 ± 0.03
RH8 -21.7 ± 2.6 5.1 ± 0.2 11.7 ± 0.2 81.4 ± 1.7 -4.29 ± 0.43 -0.27 ± 0.03
RH9 -21.7 ± 2.6 5.1 ± 0.2 11.7 ± 0.2 81.4 ± 1.7 -4.29 ± 0.43 -0.27 ± 0.03
RH10 -21.6 ± 2.6 4.5 ± 0.2 10.3 ± 0.2 81.4 ± 1.7 -4.83 ± 0.49 -0.27 ± 0.03
Average -21.3 12.9 28.8 80.0 -2.7 -0.3
Median -21.7 10.6 24.2 81.2 -2.4 -0.3
Deviation 5.1 9.5 20.4 1.9 1.7 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -17.2 ± 3.4 42.5 ± 1.3 60.5 ± 4.9 87.1 ± 4.5 -0.41 ± 0.09 -0.20 ± 0.05
VC -41.4 ± 1.9 27.1 ± 0.9 41.3 ± 3.4 93.0 ± 4.5 -1.53 ± 0.07 -0.45 ± 0.03
MX1 -38.1 ± 2.4 10.8 ± 0.4 16.9 ± 1.4 96.3 ± 4.6 -3.54 ± 0.25 -0.40 ± 0.03
MX2 -27.0 ± 3.1 39.7 ± 1.3 57.4 ± 4.7 88.4 ± 4.5 -0.68 ± 0.09 -0.31 ± 0.05
MX3 -39.8 ± 2.2 15.8 ± 0.5 24.7 ± 2.0 95.6 ± 4.5 -2.52 ± 0.16 -0.42 ± 0.03
RH8 -32.8 ± 2.7 7.5 ± 0.3 11.9 ± 1.0 96.6 ± 4.6 -4.35 ± 0.29 -0.34 ± 0.02
RH9 -32.8 ± 2.7 7.5 ± 0.3 11.9 ± 1.0 96.6 ± 4.6 -4.35 ± 0.29 -0.34 ± 0.02
RH10 -33.0 ± 2.6 6.7 ± 0.2 10.5 ± 0.9 96.7 ± 4.6 -4.95 ± 0.32 -0.34 ± 0.02
Average -32.8 19.7 29.4 93.8 -2.8 -0.3
Median -32.8 15.8 24.7 96.3 -2.5 -0.3
Deviation 7.8 14.8 20.8 3.9 1.8 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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