CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19973260912
Observation time: 11/22/1997 326.38394 0912 [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 326.383941
Arrival time of shock [seconds of day] 33172.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 180.902
Y GSE location of spacecraft [Re] -17.499
Z GSE location of spacecraft [Re] 27.800
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0297
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0291
Minimum chisq/dof for RH8,RH9,RH10 4.43, 5.96, 6.33
Event added to database
Mon Feb 14 11:05:27 2005
Event last processed
Mon Mar 30 17:17:01 2009
Method selected
RH08
Propagation delay to Earth [minutes]
38.277 ± 0.672

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -346.6 ± 1.3 -432.8 ± 6.4
Vy GSE [km/s] -2.0 ± 1.6 -27.4 ± 7.5
Vz GSE [km/s] -29.9 ± 2.9 -15.8 ± 19.2
Wi [km/s] 41.1 ± 1.1 77.2 ± 5.5
We [km/s] 1300.0 ± 33.3 2441.6 ± 173.8
Ni [n/cc] 11.7 ± 0.5 29.0 ± 0.2
Bx GSE [nT] -1.4 ± 0.3 -7.1 ± 1.2
By GSE [nT] 5.3 ± 0.4 8.9 ± 1.5
Bz GSE [nT] 0.9 ± 0.8 -3.1 ± 8.3
Plasma Beta
1.327 ± 1.335
2.189 ± 1.983
Sound Speed [km/s]
53.07 ± 1.36
99.68 ± 7.10
Alfven Speed [km/s]
35.90 ± 2.19
54.82 ± 9.61

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.971 ± 0.273 -0.240 ± 1.108 0.015 ± 0.015 0.84 ± 18.22 193.86 ± 65.40
VC -0.948 ± 0.032 -0.282 ± 0.079 0.144 ± 0.143 8.28 ± 9.28 196.57 ± 4.74
MX1 -0.803 ± 0.387 -0.594 ± 0.524 0.043 ± 0.043 2.44 ± 11.19 216.50 ± 37.35
MX2 -0.761 ± 0.266 -0.646 ± 0.313 0.058 ± 0.058 3.30 ± 10.60 220.33 ± 23.58
MX3 -0.760 ± 0.255 -0.648 ± 0.299 0.059 ± 0.059 3.40 ± 12.05 220.45 ± 22.54
RH08 -0.991 ± 0.003 -0.131 ± 0.019 -0.028 ± 0.028 -1.60 ± 1.45 187.52 ± 1.08
RH09 -0.989 ± 0.010 -0.131 ± 0.066 -0.073 ± 0.072 -4.16 ± 3.87 187.52 ± 3.81
RH10 -0.989 ± 0.010 -0.131 ± 0.067 -0.073 ± 0.072 -4.16 ± 4.02 187.52 ± 3.91
Average -0.901 -0.350 0.018 1.041 201.284
Median -0.948 -0.240 0.043 2.443 196.570
Deviation 0.107 0.238 0.074 4.247 15.152

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 89.1 ± 3.4 484.3 ± 7.9 2.54 ± 0.07
VC 89.4 ± 2.9 472.7 ± 10.6 2.54 ± 0.07
MX1 69.1 ± 3.2 420.2 ± 5.3 2.54 ± 0.07
MX2 65.5 ± 3.1 401.7 ± 5.2 2.54 ± 0.07
MX3 65.4 ± 3.1 401.1 ± 5.2 2.54 ± 0.07
RH08 83.3 ± 3.6 489.6 ± 7.9 2.54 ± 0.07
RH09 83.7 ± 3.9 489.9 ± 6.9 2.54 ± 0.07
RH10 83.7 ± 3.9 489.9 ± 6.9 2.54 ± 0.07
Average 78.7 456.2 2.54
Median 83.7 484.3 2.54
Deviation 10.3 41.0 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 147.8 ± 1.1 0.5 ± 0.0 0.6 ± 0.0 64.1 ± 1.4 325.10 ± 12.83 2.31 ± 0.05
VC 147.7 ± 1.0 0.3 ± 0.0 0.4 ± 0.0 64.1 ± 1.4 494.98 ± 19.88 2.30 ± 0.05
MX1 142.0 ± 0.9 10.8 ± 0.4 12.8 ± 0.8 63.2 ± 1.4 13.22 ± 0.58 2.25 ± 0.05
MX2 138.4 ± 1.0 12.5 ± 0.5 14.9 ± 0.9 62.9 ± 1.4 11.05 ± 0.50 2.20 ± 0.05
MX3 138.3 ± 1.0 12.6 ± 0.5 14.9 ± 0.9 62.9 ± 1.4 11.00 ± 0.49 2.20 ± 0.05
RH8 145.0 ± 1.2 3.5 ± 0.1 4.2 ± 0.3 64.0 ± 1.4 41.92 ± 1.62 2.27 ± 0.05
RH9 144.7 ± 1.3 3.2 ± 0.1 3.9 ± 0.2 64.0 ± 1.4 44.65 ± 1.72 2.26 ± 0.05
RH10 144.7 ± 1.3 3.2 ± 0.1 3.9 ± 0.2 64.0 ± 1.4 44.65 ± 1.72 2.26 ± 0.05
Average 143.6 5.8 6.9 63.7 123.3 2.3
Median 144.7 3.5 4.2 64.0 44.7 2.3
Deviation 3.7 5.3 6.2 0.6 183.3 0.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 57.8 ± 4.9 0.7 ± 0.1 0.8 ± 0.1 114.2 ± 1.8 80.60 ± 15.72 0.51 ± 0.04
VC 56.7 ± 7.0 0.5 ± 0.1 0.6 ± 0.1 114.2 ± 1.8 120.84 ± 27.98 0.50 ± 0.06
MX1 57.1 ± 2.8 17.2 ± 2.1 19.6 ± 3.4 112.9 ± 2.1 3.37 ± 0.58 0.51 ± 0.02
MX2 55.6 ± 2.7 20.0 ± 2.5 22.7 ± 4.0 112.4 ± 2.2 2.82 ± 0.49 0.49 ± 0.01
MX3 55.5 ± 2.7 20.1 ± 2.5 22.8 ± 4.0 112.4 ± 2.2 2.81 ± 0.49 0.49 ± 0.01
RH8 56.7 ± 5.0 5.5 ± 0.7 6.4 ± 1.1 114.0 ± 1.8 10.39 ± 2.01 0.50 ± 0.04
RH9 57.2 ± 4.1 5.2 ± 0.6 6.0 ± 1.0 114.0 ± 1.8 11.18 ± 2.00 0.50 ± 0.03
RH10 57.2 ± 4.1 5.2 ± 0.6 6.0 ± 1.0 114.0 ± 1.8 11.18 ± 2.00 0.50 ± 0.03
Average 56.7 9.3 10.6 113.5 30.4 0.5
Median 57.1 5.5 6.4 114.0 11.2 0.5
Deviation 0.8 8.4 9.5 0.8 44.9 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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