CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20012231558
Observation time: 08/11/2001 223.66547 1558 [UT]

Wind spacecraft

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Asymptotic parameters
Shock front normals
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Wave speed and Mach numbers
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Selected
Simple methods
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2001
Fractional day of year 223.665469
Arrival time of shock [seconds of day] 57496.5 ± 24.0
Shock type SR
Electron data availability 0
X GSE location of spacecraft [Re] 42.550
Y GSE location of spacecraft [Re] 287.431
Z GSE location of spacecraft [Re] 18.420
Upstream plasma points selected for analysis 0007
Upstream field points selected for analysis 0212
Downstream plasma points selected for analysis 0008
Downstream field points selected for analysis 0253
Minimum chisq/dof for RH8,RH9,RH10 30.72, 9.15, 10.27
Event added to database
Mon Feb 14 11:14:31 2005
Event last processed
Mon Mar 30 21:19:00 2009
Method selected
RH08
Propagation delay to Earth [minutes]
-35.327 ± 6.433

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -356.8 ± 2.0 -387.1 ± 0.9
Vy GSE [km/s] 0.7 ± 1.7 15.3 ± 1.9
Vz GSE [km/s] -11.9 ± 1.8 -13.6 ± 1.8
Wi [km/s] 34.0 ± 0.6 28.9 ± 0.8
We [km/s] 1075.0 ± 19.3 914.3 ± 26.2
Ni [n/cc] 5.0 ± 0.2 2.9 ± 0.1
Bx GSE [nT] 2.7 ± 0.1 5.1 ± 0.1
By GSE [nT] -2.9 ± 0.1 -2.3 ± 0.1
Bz GSE [nT] -1.4 ± 0.2 0.3 ± 0.2
Plasma Beta
0.686 ± 0.677
0.162 ± 0.162
Sound Speed [km/s]
43.89 ± 0.79
37.33 ± 1.07
Alfven Speed [km/s]
41.12 ± 1.58
71.92 ± 1.61

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.491 ± 0.048 0.737 ± 0.036 0.465 ± 0.428 27.68 ± 2.54 123.68 ± 3.65
VC -0.900 ± 0.026 0.432 ± 0.053 -0.051 ± 0.051 -2.91 ± 4.14 154.35 ± 3.37
MX1 -0.493 ± 0.045 0.732 ± 0.036 0.470 ± 0.432 28.02 ± 3.07 123.98 ± 3.35
MX2 -0.805 ± 0.269 0.251 ± 0.754 0.537 ± 0.478 32.49 ± 14.62 162.66 ± 53.55
MX3 -0.486 ± 0.064 0.748 ± 0.044 0.452 ± 0.418 26.87 ± 2.51 122.98 ± 4.80
RH08 -0.651 ± 0.009 0.270 ± 0.015 0.709 ± 0.556 45.19 ± 0.53 157.44 ± 1.29
RH09 -0.331 ± 0.046 -0.670 ± 0.032 0.665 ± 0.543 41.67 ± 2.29 243.68 ± 3.78
RH10 -0.331 ± 0.053 -0.670 ± 0.038 0.665 ± 0.543 41.67 ± 2.69 243.68 ± 4.39
Average -0.561 0.229 0.489 30.086 166.554
Median -0.491 0.432 0.537 32.492 157.437
Deviation 0.208 0.590 0.241 15.171 50.274

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 11.6 ± 2.5 134.6 ± 5.5 0.59 ± 0.03
VC 31.1 ± 2.4 272.9 ± 5.1 0.59 ± 0.03
MX1 11.6 ± 2.5 135.4 ± 5.5 0.59 ± 0.03
MX2 29.1 ± 1.5 243.7 ± 5.4 0.59 ± 0.03
MX3 11.6 ± 2.4 132.6 ± 5.4 0.59 ± 0.03
RH08 32.2 ± 1.7 193.0 ± 5.4 0.59 ± 0.03
RH09 89.0 ± 1.5 110.6 ± 2.9 0.59 ± 0.03
RH10 89.0 ± 1.5 110.6 ± 2.9 0.59 ± 0.03
Average 38.1 166.7 0.59
Median 31.1 135.4 0.59
Deviation 32.6 62.5 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -35.6 ± 2.6 37.7 ± 1.0 40.3 ± 1.5 46.9 ± 0.8 -0.94 ± 0.05 -0.76 ± 0.04
VC -49.2 ± 2.4 29.5 ± 0.7 35.2 ± 1.4 52.4 ± 1.0 -1.67 ± 0.06 -0.94 ± 0.03
MX1 -35.6 ± 2.6 37.7 ± 1.0 40.3 ± 1.5 46.9 ± 0.8 -0.94 ± 0.05 -0.76 ± 0.04
MX2 -37.3 ± 2.4 30.3 ± 0.7 35.9 ± 1.4 51.9 ± 1.0 -1.23 ± 0.06 -0.72 ± 0.04
MX3 -35.8 ± 2.6 37.7 ± 1.0 40.3 ± 1.5 46.9 ± 0.8 -0.95 ± 0.05 -0.76 ± 0.04
RH8 -31.0 ± 2.4 29.0 ± 0.7 34.8 ± 1.3 52.7 ± 1.0 -1.07 ± 0.07 -0.59 ± 0.04
RH9 0.8 ± 1.1 0.5 ± 0.0 0.7 ± 0.0 60.2 ± 1.2 1.52 ± 2.20 0.01 ± 0.02
RH10 0.8 ± 1.1 0.5 ± 0.0 0.7 ± 0.0 60.2 ± 1.2 1.52 ± 2.20 0.01 ± 0.02
Average -27.9 25.4 28.5 52.2 -0.5 -0.6
Median -35.6 30.3 35.9 52.4 -0.9 -0.7
Deviation 18.4 15.8 17.3 5.5 1.3 0.4

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC -60.5 ± 1.9 36.3 ± 1.0 70.5 ± 1.6 72.4 ± 1.6 -1.67 ± 0.06 -0.83 ± 0.01
VC -82.8 ± 0.9 30.7 ± 0.8 61.6 ± 1.4 75.0 ± 1.6 -2.70 ± 0.06 -1.10 ± 0.02
MX1 -60.4 ± 1.9 36.3 ± 1.0 70.5 ± 1.6 72.4 ± 1.6 -1.67 ± 0.06 -0.83 ± 0.01
MX2 -64.5 ± 1.1 31.4 ± 0.8 62.8 ± 1.4 74.7 ± 1.6 -2.06 ± 0.05 -0.86 ± 0.01
MX3 -60.7 ± 1.9 36.3 ± 1.0 70.5 ± 1.6 72.4 ± 1.6 -1.67 ± 0.06 -0.84 ± 0.01
RH8 -53.4 ± 1.4 30.2 ± 0.8 60.9 ± 1.4 75.2 ± 1.6 -1.77 ± 0.06 -0.71 ± 0.01
RH9 1.7 ± 1.0 0.6 ± 0.0 1.2 ± 0.0 81.0 ± 1.6 2.90 ± 1.81 0.02 ± 0.01
RH10 1.7 ± 1.0 0.6 ± 0.0 1.2 ± 0.0 81.0 ± 1.6 2.90 ± 1.81 0.02 ± 0.01
Average -47.4 25.3 49.9 75.5 -0.7 -0.6
Median -60.4 31.4 62.8 75.0 -1.7 -0.8
Deviation 31.4 15.5 30.3 3.6 2.3 0.4

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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