CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19970050320
Observation time: 01/05/1997 5.13943 0320 [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 1997
Fractional day of year 5.139427
Arrival time of shock [seconds of day] 12046.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 30.834
Y GSE location of spacecraft [Re] -60.580
Z GSE location of spacecraft [Re] 2.393
Upstream plasma points selected for analysis 0003
Upstream field points selected for analysis 0190
Downstream plasma points selected for analysis 0007
Downstream field points selected for analysis 0211
Minimum chisq/dof for RH8,RH9,RH10 24.75, 31.87, 34.82
Event added to database
Mon Feb 14 11:03:42 2005
Event last processed
Mon Mar 30 16:32:24 2009
Method selected
RH09
Propagation delay to Earth [minutes]
12.612 ± 0.981

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -335.7 ± 0.7 -359.7 ± 3.0
Vy GSE [km/s] -10.7 ± 3.2 -8.0 ± 1.8
Vz GSE [km/s] -9.7 ± 0.4 21.7 ± 2.8
Wi [km/s] 24.9 ± 1.2 31.0 ± 1.4
We [km/s] 786.3 ± 37.8 980.3 ± 44.8
Ni [n/cc] 7.1 ± 0.1 11.4 ± 0.6
Bx GSE [nT] 1.0 ± 0.2 0.8 ± 0.9
By GSE [nT] -5.1 ± 0.2 -7.5 ± 0.3
Bz GSE [nT] 0.4 ± 0.2 1.9 ± 0.6
Plasma Beta
0.337 ± 0.357
0.378 ± 0.357
Sound Speed [km/s]
32.10 ± 1.54
40.02 ± 1.83
Alfven Speed [km/s]
42.98 ± 1.52
50.70 ± 2.03

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.878 ± 0.380 0.379 ± 0.811 0.292 ± 0.283 16.97 ± 32.18 156.67 ± 52.74
VC -0.610 ± 0.064 0.069 ± 0.081 0.789 ± 0.559 52.10 ± 4.60 173.59 ± 7.55
MX1 -0.610 ± 0.117 0.487 ± 0.130 0.624 ± 0.527 38.64 ± 8.04 141.39 ± 11.09
MX2 -0.622 ± 0.111 0.471 ± 0.128 0.626 ± 0.527 38.72 ± 7.63 142.90 ± 10.82
MX3 -0.639 ± 0.114 0.446 ± 0.137 0.626 ± 0.527 38.75 ± 7.87 145.09 ± 11.44
RH08 -0.794 ± 0.018 0.298 ± 0.027 0.531 ± 0.474 32.05 ± 1.72 159.44 ± 1.92
RH09 -0.968 ± 0.017 0.251 ± 0.066 0.017 ± 0.017 0.96 ± 4.05 165.46 ± 3.91
RH10 -0.968 ± 0.017 0.251 ± 0.067 0.006 ± 0.006 0.32 ± 4.05 165.46 ± 3.94
Average -0.761 0.331 0.439 27.315 156.248
Median -0.639 0.379 0.624 38.643 159.443
Deviation 0.160 0.143 0.298 19.110 11.978

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 58.6 ± 1.3 366.5 ± 8.6 1.60 ± 0.08
VC 82.5 ± 0.8 300.7 ± 10.4 1.60 ± 0.08
MX1 56.6 ± 0.7 286.9 ± 9.3 1.60 ± 0.08
MX2 57.5 ± 0.7 291.8 ± 9.3 1.60 ± 0.08
MX3 58.9 ± 0.6 298.8 ± 9.4 1.60 ± 0.08
RH08 65.9 ± 0.4 353.6 ± 9.4 1.60 ± 0.08
RH09 64.3 ± 2.4 384.2 ± 8.3 1.60 ± 0.08
RH10 64.2 ± 2.4 383.6 ± 8.2 1.60 ± 0.08
Average 63.6 333.3 1.60
Median 64.2 353.6 1.60
Deviation 8.4 42.7 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 78.6 ± 0.7 13.9 ± 0.4 22.4 ± 0.8 51.8 ± 1.0 5.67 ± 0.18 1.52 ± 0.02
VC 104.1 ± 0.2 3.4 ± 0.1 5.6 ± 0.2 53.6 ± 1.0 31.06 ± 0.84 1.94 ± 0.04
MX1 93.3 ± 1.4 14.7 ± 0.4 23.7 ± 0.8 51.6 ± 1.0 6.34 ± 0.23 1.81 ± 0.03
MX2 94.1 ± 1.3 14.3 ± 0.4 23.1 ± 0.8 51.7 ± 1.0 6.58 ± 0.24 1.82 ± 0.03
MX3 95.0 ± 1.2 13.7 ± 0.4 22.2 ± 0.8 51.9 ± 1.0 6.93 ± 0.24 1.83 ± 0.03
RH8 95.5 ± 0.6 10.7 ± 0.3 17.6 ± 0.6 52.6 ± 1.0 8.93 ± 0.27 1.82 ± 0.03
RH9 62.2 ± 0.2 11.4 ± 0.3 18.7 ± 0.7 52.4 ± 1.0 5.46 ± 0.14 1.19 ± 0.02
RH10 61.4 ± 0.2 11.4 ± 0.3 18.7 ± 0.7 52.4 ± 1.0 5.38 ± 0.14 1.17 ± 0.02
Average 85.5 11.7 19.0 52.3 9.5 1.6
Median 94.1 13.7 22.2 52.4 6.6 1.8
Deviation 16.2 3.7 5.9 0.6 8.8 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 47.3 ± 2.9 16.9 ± 0.4 26.4 ± 1.1 62.4 ± 1.3 2.79 ± 0.19 0.76 ± 0.04
VC 64.5 ± 2.5 4.1 ± 0.1 6.6 ± 0.3 64.5 ± 1.3 15.75 ± 0.76 1.00 ± 0.04
MX1 57.7 ± 2.8 18.0 ± 0.4 27.9 ± 1.1 62.1 ± 1.3 3.21 ± 0.19 0.93 ± 0.05
MX2 58.2 ± 2.8 17.5 ± 0.4 27.2 ± 1.1 62.2 ± 1.3 3.33 ± 0.19 0.94 ± 0.05
MX3 58.7 ± 2.8 16.8 ± 0.4 26.2 ± 1.0 62.4 ± 1.3 3.50 ± 0.20 0.94 ± 0.04
RH8 58.9 ± 2.8 13.1 ± 0.3 20.7 ± 0.8 63.3 ± 1.3 4.51 ± 0.25 0.93 ± 0.04
RH9 37.7 ± 3.1 13.9 ± 0.3 22.0 ± 0.9 63.1 ± 1.3 2.70 ± 0.22 0.60 ± 0.04
RH10 37.2 ± 3.1 14.0 ± 0.3 22.0 ± 0.9 63.1 ± 1.3 2.67 ± 0.22 0.59 ± 0.04
Average 52.5 14.3 22.4 62.9 4.8 0.8
Median 58.2 16.8 26.2 63.1 3.3 0.9
Deviation 10.4 4.5 6.9 0.8 4.5 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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