CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Ace Shock Analysis
Event ID: 20000450657
Observation time: 02/14/2000 45.28970 0657 [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 2000
Fractional day of year 45.289699
Arrival time of shock [seconds of day] 25030.0 ± 16.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 0.038
Y GSE location of spacecraft [Re] -0.002
Z GSE location of spacecraft [Re] 0.004
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0035
Downstream plasma points selected for analysis 0005
Downstream field points selected for analysis 0025
Minimum chisq/dof for RH8,RH9,RH10 4.74, 7.92, 8.20
Event added to database
Sat Apr 30 21:45:54 2005
Event last processed
Wed Oct 15 15:56:59 2014
Method selected
RH08
Propagation delay to Earth [minutes]
0.006 ± 0.001

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -573.0 ± 15.8 -619.3 ± 14.8
Vy GSE [km/s] -1.1 ± 7.8 -10.2 ± 11.4
Vz GSE [km/s] -25.9 ± 34.2 -42.5 ± 22.7
Wi [km/s] 43.9 ± 3.4 57.6 ± 2.0
We [km/s] 1388.4 ± 107.1 1821.9 ± 64.1
Ni [n/cc] 3.6 ± 0.5 5.6 ± 0.3
Bx GSE [nT] 2.4 ± 1.4 2.1 ± 1.0
By GSE [nT] -4.5 ± 0.8 -9.7 ± 0.6
Bz GSE [nT] -1.9 ± 1.9 -2.2 ± 2.0
Plasma Beta
0.428 ± 0.385
0.445 ± 0.448
Sound Speed [km/s]
56.51 ± 4.54
74.35 ± 2.52
Alfven Speed [km/s]
67.80 ± 4.84
87.24 ± 8.75

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.959 ± 0.176 0.278 ± 0.589 0.056 ± 0.055 3.18 ± 43.57 163.82 ± 35.17
VC -0.948 ± 0.161 -0.205 ± 0.318 -0.243 ± 0.238 -14.04 ± 35.23 192.20 ± 19.11
MX1 -0.990 ± 0.080 0.093 ± 0.536 -0.105 ± 0.105 -6.03 ± 33.85 174.66 ± 31.00
MX2 -0.984 ± 0.096 0.086 ± 0.456 -0.157 ± 0.156 -9.04 ± 31.93 174.98 ± 26.54
MX3 -0.977 ± 0.117 0.096 ± 0.469 -0.192 ± 0.189 -11.05 ± 32.41 174.36 ± 27.48
RH08 -0.995 ± 0.003 0.026 ± 0.023 -0.095 ± 0.095 -5.45 ± 1.50 178.50 ± 1.32
RH09 -0.994 ± 0.008 0.061 ± 0.069 -0.095 ± 0.095 -5.45 ± 4.02 176.49 ± 3.99
RH10 -0.994 ± 0.008 0.061 ± 0.069 -0.095 ± 0.095 -5.45 ± 4.02 176.49 ± 3.99
Average -0.980 0.062 -0.116 -6.665 176.437
Median -0.984 0.086 -0.095 -5.450 176.490
Deviation 0.018 0.132 0.088 5.087 7.761

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 48.6 ± 15.5 656.1 ± 116.0 1.71 ± 0.27
VC 79.2 ± 16.4 683.1 ± 108.8 1.71 ± 0.27
MX1 61.2 ± 16.3 697.2 ± 114.8 1.71 ± 0.27
MX2 62.4 ± 16.2 690.7 ± 111.6 1.71 ± 0.27
MX3 62.6 ± 16.4 686.7 ± 109.0 1.71 ± 0.27
RH08 64.2 ± 15.9 700.0 ± 117.3 1.71 ± 0.27
RH09 62.4 ± 15.8 699.3 ± 116.4 1.71 ± 0.27
RH10 62.4 ± 15.8 699.3 ± 116.4 1.71 ± 0.27
Average 62.9 689.1 1.71
Median 62.4 697.2 1.71
Deviation 8.2 14.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 109.3 ± 14.3 30.4 ± 1.5 44.8 ± 3.2 83.0 ± 3.8 3.59 ± 0.45 1.32 ± 0.17
VC 134.8 ± 21.0 8.1 ± 0.4 12.7 ± 0.9 88.0 ± 4.0 16.54 ± 2.21 1.53 ± 0.21
MX1 128.6 ± 17.8 21.5 ± 1.0 32.7 ± 2.3 85.7 ± 3.9 5.98 ± 0.74 1.50 ± 0.19
MX2 124.5 ± 18.6 20.6 ± 1.0 31.4 ± 2.2 86.0 ± 3.9 6.04 ± 0.80 1.45 ± 0.19
MX3 123.9 ± 19.2 20.5 ± 1.0 31.2 ± 2.2 86.0 ± 3.9 6.04 ± 0.82 1.44 ± 0.20
RH8 128.6 ± 18.0 19.2 ± 0.9 29.5 ± 2.1 86.3 ± 3.9 6.68 ± 0.83 1.49 ± 0.19
RH9 128.9 ± 17.8 20.6 ± 1.0 31.4 ± 2.2 86.0 ± 3.9 6.25 ± 0.77 1.50 ± 0.19
RH10 128.9 ± 17.8 20.6 ± 1.0 31.4 ± 2.2 86.0 ± 3.9 6.25 ± 0.77 1.50 ± 0.19
Average 125.9 20.2 30.7 85.9 7.2 1.5
Median 128.6 20.6 31.4 86.0 6.3 1.5
Deviation 7.5 6.0 8.7 1.4 3.9 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 68.4 ± 14.2 39.8 ± 2.1 57.7 ± 5.8 107.6 ± 7.2 1.73 ± 0.41 0.64 ± 0.16
VC 83.0 ± 11.1 10.6 ± 0.6 16.3 ± 1.6 114.2 ± 7.5 7.84 ± 1.21 0.73 ± 0.12
MX1 80.7 ± 13.2 28.1 ± 1.5 42.1 ± 4.2 111.2 ± 7.4 2.89 ± 0.54 0.73 ± 0.15
MX2 75.6 ± 13.0 26.9 ± 1.5 40.5 ± 4.1 111.5 ± 7.4 2.82 ± 0.54 0.68 ± 0.14
MX3 74.4 ± 13.0 26.7 ± 1.5 40.2 ± 4.0 111.6 ± 7.4 2.79 ± 0.54 0.67 ± 0.14
RH8 80.1 ± 13.0 25.1 ± 1.4 37.9 ± 3.8 111.9 ± 7.4 3.20 ± 0.60 0.72 ± 0.14
RH9 80.8 ± 13.1 26.9 ± 1.5 40.4 ± 4.1 111.5 ± 7.4 3.02 ± 0.56 0.73 ± 0.15
RH10 80.8 ± 13.1 26.9 ± 1.5 40.4 ± 4.1 111.5 ± 7.4 3.02 ± 0.56 0.73 ± 0.15
Average 78.0 26.4 39.4 111.4 3.4 0.7
Median 80.7 26.9 40.4 111.5 3.0 0.7
Deviation 4.8 7.9 11.2 1.8 1.8 0.0

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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