CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19973440433
Observation time: 12/10/1997 344.18974 0433 [UT]

Wind spacecraft

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Asymptotic parameters
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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 1997
Fractional day of year 344.189740
Arrival time of shock [seconds of day] 16393.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 206.798
Y GSE location of spacecraft [Re] 9.960
Z GSE location of spacecraft [Re] 22.562
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0237
Downstream plasma points selected for analysis 0008
Downstream field points selected for analysis 0250
Minimum chisq/dof for RH8,RH9,RH10 12.48, 33.06, 35.26
Event added to database
Mon Feb 14 11:05:33 2005
Event last processed
Mon Mar 30 17:20:47 2009
Method selected
RH08
Propagation delay to Earth [minutes]
52.082 ± 4.904

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -289.5 ± 1.6 -354.1 ± 1.4
Vy GSE [km/s] -13.8 ± 1.7 -5.5 ± 2.5
Vz GSE [km/s] -0.1 ± 4.0 -45.9 ± 3.1
Wi [km/s] 26.4 ± 1.7 33.9 ± 1.6
We [km/s] 833.5 ± 52.9 1071.1 ± 50.4
Ni [n/cc] 10.2 ± 0.9 25.3 ± 2.3
Bx GSE [nT] 1.9 ± 0.1 2.8 ± 0.3
By GSE [nT] -6.7 ± 0.2 -13.8 ± 0.4
Bz GSE [nT] -1.4 ± 0.4 -7.1 ± 0.9
Plasma Beta
0.303 ± 0.283
0.247 ± 0.263
Sound Speed [km/s]
34.03 ± 2.16
43.73 ± 2.06
Alfven Speed [km/s]
48.44 ± 2.96
68.60 ± 3.48

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.441 ± 0.118 0.542 ± 0.099 -0.715 ± 0.557 -45.68 ± 3.51 129.16 ± 12.09
VC -0.812 ± 0.030 0.105 ± 0.036 -0.574 ± 0.500 -35.00 ± 2.94 172.64 ± 2.53
MX1 -0.817 ± 0.029 0.302 ± 0.063 -0.492 ± 0.448 -29.47 ± 2.19 159.73 ± 4.38
MX2 -0.836 ± 0.025 0.281 ± 0.051 -0.472 ± 0.433 -28.16 ± 2.35 161.44 ± 3.45
MX3 -0.849 ± 0.024 0.266 ± 0.045 -0.457 ± 0.422 -27.19 ± 2.54 162.62 ± 2.98
RH08 -0.903 ± 0.015 0.168 ± 0.032 -0.397 ± 0.374 -23.37 ± 2.00 169.47 ± 2.00
RH09 -0.971 ± 0.016 0.094 ± 0.071 -0.218 ± 0.214 -12.58 ± 3.96 174.48 ± 4.17
RH10 -0.980 ± 0.014 0.077 ± 0.070 -0.184 ± 0.182 -10.62 ± 4.00 175.49 ± 4.11
Average -0.826 0.229 -0.439 -26.511 163.129
Median -0.836 0.266 -0.457 -27.195 169.471
Deviation 0.169 0.155 0.175 11.388 15.028

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 60.6 ± 2.8 232.5 ± 10.6 2.49 ± 0.35
VC 78.0 ± 2.0 368.7 ± 12.9 2.49 ± 0.35
MX1 65.8 ± 1.9 364.8 ± 12.3 2.49 ± 0.35
MX2 66.4 ± 1.9 370.6 ± 12.3 2.49 ± 0.35
MX3 66.9 ± 1.8 374.7 ± 12.3 2.49 ± 0.35
RH08 70.9 ± 1.6 391.2 ± 12.4 2.49 ± 0.35
RH09 71.9 ± 1.1 403.9 ± 11.7 2.49 ± 0.35
RH10 72.3 ± 1.0 404.3 ± 11.6 2.49 ± 0.35
Average 69.1 363.8 2.49
Median 70.9 374.7 2.49
Deviation 5.3 55.3 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 112.2 ± 3.4 14.0 ± 0.5 23.8 ± 1.5 57.6 ± 2.0 8.03 ± 0.46 1.95 ± 0.11
VC 135.0 ± 2.9 5.8 ± 0.2 10.1 ± 0.6 59.0 ± 2.0 23.25 ± 1.04 2.29 ± 0.11
MX1 132.5 ± 2.6 11.6 ± 0.4 19.9 ± 1.2 58.1 ± 2.0 11.42 ± 0.51 2.28 ± 0.11
MX2 132.5 ± 2.6 11.3 ± 0.4 19.4 ± 1.2 58.2 ± 2.0 11.73 ± 0.51 2.28 ± 0.11
MX3 132.6 ± 2.5 11.1 ± 0.4 19.0 ± 1.2 58.2 ± 2.0 11.97 ± 0.52 2.28 ± 0.11
RH8 132.3 ± 2.3 9.2 ± 0.3 15.8 ± 1.0 58.5 ± 2.0 14.42 ± 0.59 2.26 ± 0.10
RH9 124.0 ± 1.9 8.7 ± 0.3 15.1 ± 0.9 58.6 ± 2.0 14.22 ± 0.51 2.12 ± 0.09
RH10 121.7 ± 1.8 8.5 ± 0.3 14.7 ± 0.9 58.6 ± 2.0 14.27 ± 0.50 2.08 ± 0.09
Average 127.8 10.0 17.2 58.4 13.7 2.2
Median 132.5 11.1 19.0 58.5 14.2 2.3
Deviation 7.9 2.5 4.2 0.4 4.4 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 46.4 ± 2.7 18.5 ± 0.5 33.6 ± 1.7 79.3 ± 2.5 2.51 ± 0.18 0.59 ± 0.04
VC 55.3 ± 1.7 7.7 ± 0.2 14.3 ± 0.7 81.0 ± 2.4 7.18 ± 0.35 0.68 ± 0.03
MX1 54.7 ± 1.8 15.4 ± 0.4 28.2 ± 1.4 79.9 ± 2.5 3.55 ± 0.18 0.68 ± 0.03
MX2 54.5 ± 1.8 15.0 ± 0.4 27.4 ± 1.4 80.0 ± 2.5 3.64 ± 0.18 0.68 ± 0.03
MX3 54.5 ± 1.7 14.7 ± 0.4 26.9 ± 1.4 80.1 ± 2.5 3.72 ± 0.18 0.68 ± 0.03
RH8 54.3 ± 1.5 12.2 ± 0.3 22.4 ± 1.1 80.5 ± 2.4 4.47 ± 0.21 0.68 ± 0.03
RH9 50.4 ± 1.3 11.6 ± 0.3 21.3 ± 1.1 80.6 ± 2.4 4.36 ± 0.20 0.63 ± 0.03
RH10 49.3 ± 1.3 11.3 ± 0.3 20.9 ± 1.1 80.6 ± 2.4 4.36 ± 0.20 0.61 ± 0.03
Average 52.4 13.3 24.4 80.2 4.2 0.7
Median 54.5 14.7 26.9 80.5 4.4 0.7
Deviation 3.3 3.3 5.9 0.5 1.4 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 Fri Jun 13 11:06:02 2014
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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