CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Ace Shock Analysis
Event ID: 20022101240
Observation time: 07/29/2002 210.52802 1240 [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 2002
Fractional day of year 210.528021
Arrival time of shock [seconds of day] 45621.0 ± 16.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 0.038
Y GSE location of spacecraft [Re] -0.005
Z GSE location of spacecraft [Re] 0.004
Upstream plasma points selected for analysis 0010
Upstream field points selected for analysis 0042
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0036
Minimum chisq/dof for RH8,RH9,RH10 9.53, 19.86, 22.24
Event added to database
Sun May 1 22:33:14 2005
Event last processed
Tue May 3 14:31:42 2005
Method selected
RH08
Propagation delay to Earth [minutes]
0.006 ± 0.001

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -390.6 ± 3.1 -462.3 ± 6.9
Vy GSE [km/s] -33.6 ± 2.4 -60.9 ± 5.4
Vz GSE [km/s] 29.4 ± 6.7 80.6 ± 7.1
Wi [km/s] 23.4 ± 1.9 31.3 ± 3.9
We [km/s] 740.1 ± 58.9 990.0 ± 122.3
Ni [n/cc] 6.3 ± 0.7 12.7 ± 1.8
Bx GSE [nT] 2.9 ± 0.6 5.5 ± 0.8
By GSE [nT] -3.3 ± 0.3 -11.2 ± 0.9
Bz GSE [nT] -0.8 ± 1.3 1.5 ± 1.9
Plasma Beta
0.336 ± 0.356
0.166 ± 0.147
Sound Speed [km/s]
30.21 ± 2.40
40.42 ± 4.99
Alfven Speed [km/s]
40.75 ± 2.54
78.30 ± 5.40

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.869 ± 0.224 0.077 ± 0.367 0.489 ± 0.446 29.26 ± 26.12 174.96 ± 24.14
VC -0.779 ± 0.058 -0.297 ± 0.062 0.553 ± 0.488 33.56 ± 5.99 200.85 ± 4.31
MX1 -0.834 ± 0.079 -0.069 ± 0.220 0.548 ± 0.485 33.23 ± 8.09 184.76 ± 15.12
MX2 -0.849 ± 0.053 -0.128 ± 0.109 0.513 ± 0.463 30.88 ± 5.67 188.55 ± 7.32
MX3 -0.853 ± 0.053 -0.138 ± 0.101 0.504 ± 0.456 30.25 ± 5.80 189.20 ± 6.79
RH08 -0.934 ± 0.004 -0.140 ± 0.018 0.330 ± 0.317 19.25 ± 0.55 188.52 ± 1.08
RH09 -0.829 ± 0.039 -0.295 ± 0.065 -0.475 ± 0.435 -28.35 ± 4.00 199.55 ± 4.46
RH10 -0.866 ± 0.035 -0.274 ± 0.067 -0.419 ± 0.393 -24.77 ± 3.98 197.55 ± 4.37
Average -0.851 -0.158 0.255 15.413 190.495
Median -0.849 -0.138 0.504 30.251 189.205
Deviation 0.044 0.129 0.439 26.302 8.640

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 46.7 ± 7.4 525.3 ± 27.4 2.03 ± 0.49
VC 67.9 ± 7.8 517.7 ± 28.7 2.03 ± 0.49
MX1 55.2 ± 7.8 527.1 ± 28.5 2.03 ± 0.49
MX2 57.8 ± 7.3 535.3 ± 28.5 2.03 ± 0.49
MX3 58.3 ± 7.2 537.0 ± 28.5 2.03 ± 0.49
RH08 57.1 ± 5.8 557.3 ± 27.2 2.03 ± 0.49
RH09 76.7 ± 11.6 408.6 ± 18.6 2.03 ± 0.49
RH10 73.9 ± 11.1 433.4 ± 19.1 2.03 ± 0.49
Average 61.7 505.2 2.03
Median 58.3 527.1 2.03
Deviation 10.2 53.7 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 174.1 ± 5.0 17.7 ± 1.0 28.0 ± 1.7 47.6 ± 2.2 9.86 ± 0.51 3.66 ± 0.18
VC 187.3 ± 4.8 9.3 ± 0.5 15.3 ± 1.0 49.9 ± 2.3 20.28 ± 0.94 3.76 ± 0.17
MX1 183.1 ± 5.1 14.4 ± 0.8 23.3 ± 1.5 48.7 ± 2.3 12.74 ± 0.63 3.77 ± 0.18
MX2 184.4 ± 4.9 13.4 ± 0.7 21.7 ± 1.4 49.0 ± 2.3 13.84 ± 0.67 3.77 ± 0.18
MX3 184.5 ± 4.9 13.2 ± 0.7 21.4 ± 1.3 49.0 ± 2.3 14.04 ± 0.67 3.77 ± 0.18
RH8 178.2 ± 4.1 13.7 ± 0.8 22.2 ± 1.4 48.9 ± 2.3 13.08 ± 0.61 3.65 ± 0.17
RH9 88.7 ± 3.6 5.6 ± 0.3 9.4 ± 0.6 50.5 ± 2.3 15.90 ± 0.95 1.76 ± 0.10
RH10 98.4 ± 3.4 6.8 ± 0.4 11.3 ± 0.7 50.3 ± 2.3 14.56 ± 0.80 1.96 ± 0.11
Average 159.9 11.7 19.1 49.2 14.3 3.3
Median 183.1 13.4 21.7 49.0 14.0 3.8
Deviation 41.2 4.1 6.4 1.0 3.0 0.9

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 88.9 ± 6.1 25.6 ± 2.5 53.7 ± 3.7 84.5 ± 4.5 3.49 ± 0.28 1.05 ± 0.08
VC 95.2 ± 5.2 13.6 ± 1.3 29.5 ± 2.0 87.2 ± 4.3 7.04 ± 0.58 1.09 ± 0.06
MX1 93.4 ± 5.8 21.0 ± 2.0 44.7 ± 3.1 85.7 ± 4.4 4.47 ± 0.36 1.09 ± 0.07
MX2 93.9 ± 5.8 19.5 ± 1.9 41.7 ± 2.9 86.1 ± 4.4 4.84 ± 0.39 1.09 ± 0.07
MX3 93.9 ± 5.8 19.2 ± 1.8 41.2 ± 2.8 86.2 ± 4.4 4.90 ± 0.39 1.09 ± 0.07
RH8 90.6 ± 6.2 19.9 ± 1.9 42.6 ± 2.9 86.0 ± 4.4 4.57 ± 0.36 1.06 ± 0.07
RH9 45.5 ± 8.4 8.2 ± 0.8 18.0 ± 1.2 87.9 ± 4.3 5.54 ± 0.98 0.52 ± 0.09
RH10 50.3 ± 8.3 10.0 ± 0.9 21.7 ± 1.5 87.7 ± 4.3 5.06 ± 0.79 0.57 ± 0.08
Average 81.5 17.1 36.6 86.4 5.0 0.9
Median 93.4 19.5 41.7 86.2 4.9 1.1
Deviation 20.8 6.0 12.3 1.2 1.0 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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