CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19971350115
Observation time: 05/15/1997 135.05234 0115 [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 135.052344
Arrival time of shock [seconds of day] 4522.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 190.824
Y GSE location of spacecraft [Re] 3.330
Z GSE location of spacecraft [Re] 17.567
Upstream plasma points selected for analysis 0010
Upstream field points selected for analysis 0276
Downstream plasma points selected for analysis 0009
Downstream field points selected for analysis 0260
Minimum chisq/dof for RH8,RH9,RH10 6.97, 41.24, 49.42
Event added to database
Mon Feb 14 11:04:38 2005
Event last processed
Mon Mar 30 16:56:07 2009
Method selected
RH08
Propagation delay to Earth [minutes]
40.952 ± 1.259

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -317.3 ± 1.7 -388.6 ± 3.0
Vy GSE [km/s] -17.7 ± 1.4 -50.1 ± 2.4
Vz GSE [km/s] -26.7 ± 3.3 -42.0 ± 3.9
Wi [km/s] 22.5 ± 0.5 30.3 ± 2.2
We [km/s] 712.0 ± 14.8 957.1 ± 69.0
Ni [n/cc] 18.6 ± 0.4 40.3 ± 2.6
Bx GSE [nT] -2.8 ± 0.3 -6.4 ± 1.1
By GSE [nT] 6.4 ± 0.2 16.0 ± 0.5
Bz GSE [nT] -2.1 ± 0.3 -6.4 ± 2.6
Plasma Beta
0.375 ± 0.377
0.228 ± 0.231
Sound Speed [km/s]
29.07 ± 0.61
39.07 ± 2.82
Alfven Speed [km/s]
36.85 ± 1.28
63.98 ± 3.50

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.946 ± 0.294 -0.049 ± 0.785 0.321 ± 0.310 18.75 ± 52.04 183.00 ± 47.53
VC -0.893 ± 0.021 -0.406 ± 0.040 -0.192 ± 0.190 -11.08 ± 3.58 204.46 ± 2.56
MX1 -0.893 ± 0.025 -0.408 ± 0.051 -0.191 ± 0.189 -11.04 ± 3.47 204.53 ± 3.23
MX2 -0.893 ± 0.024 -0.408 ± 0.048 -0.192 ± 0.190 -11.08 ± 3.37 204.56 ± 3.09
MX3 -0.892 ± 0.024 -0.408 ± 0.047 -0.193 ± 0.190 -11.10 ± 3.33 204.58 ± 3.01
RH08 -0.918 ± 0.004 -0.363 ± 0.009 -0.162 ± 0.161 -9.32 ± 0.68 201.56 ± 0.55
RH09 -0.802 ± 0.042 0.007 ± 0.066 0.598 ± 0.514 36.71 ± 4.03 179.50 ± 4.73
RH10 -0.847 ± 0.037 -0.022 ± 0.071 0.531 ± 0.474 32.05 ± 4.01 181.50 ± 4.78
Average -0.885 -0.257 0.065 4.238 195.462
Median -0.893 -0.363 -0.162 -9.324 204.461
Deviation 0.044 0.196 0.355 21.249 11.781

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 76.8 ± 2.3 408.2 ± 11.7 2.17 ± 0.13
VC 87.6 ± 2.2 443.4 ± 11.3 2.17 ± 0.13
MX1 87.6 ± 2.2 443.3 ± 11.3 2.17 ± 0.13
MX2 87.7 ± 2.2 443.2 ± 11.3 2.17 ± 0.13
MX3 87.7 ± 2.2 443.2 ± 11.3 2.17 ± 0.13
RH08 85.3 ± 2.2 449.0 ± 11.5 2.17 ± 0.13
RH09 81.8 ± 2.4 325.6 ± 10.7 2.17 ± 0.13
RH10 81.2 ± 2.3 351.5 ± 11.0 2.17 ± 0.13
Average 84.5 413.4 2.17
Median 87.6 443.2 2.17
Deviation 4.1 48.4 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 115.9 ± 2.5 5.2 ± 0.1 8.4 ± 0.3 46.7 ± 0.9 22.17 ± 0.67 2.48 ± 0.08
VC 147.6 ± 0.7 1.0 ± 0.0 1.6 ± 0.1 46.9 ± 0.9 151.97 ± 2.24 3.15 ± 0.07
MX1 147.6 ± 0.7 0.9 ± 0.0 1.5 ± 0.1 46.9 ± 0.9 157.10 ± 2.32 3.15 ± 0.07
MX2 147.6 ± 0.7 0.9 ± 0.0 1.5 ± 0.1 46.9 ± 0.9 158.27 ± 2.33 3.15 ± 0.07
MX3 147.6 ± 0.7 0.9 ± 0.0 1.5 ± 0.1 46.9 ± 0.9 159.02 ± 2.34 3.15 ± 0.07
RH8 147.0 ± 0.8 1.9 ± 0.0 3.0 ± 0.1 46.9 ± 0.9 78.89 ± 1.23 3.14 ± 0.07
RH9 87.3 ± 3.2 3.3 ± 0.0 5.3 ± 0.2 46.8 ± 0.9 26.78 ± 1.19 1.86 ± 0.08
RH10 96.4 ± 3.0 3.5 ± 0.1 5.7 ± 0.2 46.8 ± 0.9 27.41 ± 1.08 2.06 ± 0.08
Average 129.6 2.2 3.6 46.9 97.7 2.8
Median 147.6 1.9 3.0 46.9 152.0 3.1
Deviation 25.9 1.6 2.6 0.1 65.4 0.5

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 51.8 ± 3.4 7.6 ± 0.4 14.6 ± 0.8 74.7 ± 2.5 6.81 ± 0.36 0.69 ± 0.06
VC 67.9 ± 2.1 1.4 ± 0.1 2.7 ± 0.1 75.0 ± 2.5 48.05 ± 2.77 0.91 ± 0.05
MX1 67.9 ± 2.1 1.4 ± 0.1 2.6 ± 0.1 75.0 ± 2.5 49.67 ± 2.86 0.91 ± 0.05
MX2 67.9 ± 2.1 1.4 ± 0.1 2.6 ± 0.1 75.0 ± 2.5 50.05 ± 2.88 0.91 ± 0.05
MX3 67.9 ± 2.1 1.4 ± 0.1 2.6 ± 0.1 75.0 ± 2.5 50.29 ± 2.90 0.91 ± 0.05
RH8 67.4 ± 2.2 2.7 ± 0.1 5.2 ± 0.3 75.0 ± 2.5 24.88 ± 1.40 0.90 ± 0.05
RH9 39.5 ± 3.9 4.7 ± 0.2 9.1 ± 0.5 74.9 ± 2.5 8.32 ± 0.61 0.53 ± 0.06
RH10 43.4 ± 3.7 5.1 ± 0.2 9.8 ± 0.5 74.9 ± 2.5 8.47 ± 0.55 0.58 ± 0.06
Average 59.2 3.2 6.2 74.9 30.8 0.8
Median 67.9 2.7 5.2 75.0 48.1 0.9
Deviation 12.3 2.4 4.5 0.1 20.8 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 Fri Jun 13 11:06:02 2014
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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