CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20010861807
Observation time: 03/27/2001 86.75543 1807 [UT]

Wind spacecraft

Site
Data tables
Selection
Normals
Parameters
Previous event
Next event
Yearly list
Main page
Help

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


General Information (About, Top)

Year 2001
Fractional day of year 86.755434
Arrival time of shock [seconds of day] 65269.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] -3.344
Y GSE location of spacecraft [Re] -233.669
Z GSE location of spacecraft [Re] 4.180
Upstream plasma points selected for analysis 0006
Upstream field points selected for analysis 0232
Downstream plasma points selected for analysis 0005
Downstream field points selected for analysis 0179
Minimum chisq/dof for RH8,RH9,RH10 25.87, 30.88, 33.09
Event added to database
Mon Feb 14 11:13:02 2005
Event last processed
Mon Mar 30 20:38:29 2009
Method selected
RH08
Propagation delay to Earth [minutes]
-9.371 ± 1.623

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -427.9 ± 3.7 -498.6 ± 5.3
Vy GSE [km/s] -13.1 ± 2.9 -65.8 ± 4.2
Vz GSE [km/s] 38.5 ± 3.2 -20.7 ± 3.5
Wi [km/s] 53.7 ± 2.0 69.7 ± 3.6
We [km/s] 1697.8 ± 64.2 2204.6 ± 113.7
Ni [n/cc] 6.4 ± 0.5 13.2 ± 1.1
Bx GSE [nT] -6.6 ± 0.5 -12.2 ± 1.0
By GSE [nT] 7.4 ± 0.5 17.6 ± 0.9
Bz GSE [nT] -3.4 ± 0.6 3.3 ± 1.2
Plasma Beta
0.359 ± 0.340
0.287 ± 0.270
Sound Speed [km/s]
69.31 ± 2.62
90.00 ± 4.64
Alfven Speed [km/s]
90.37 ± 6.54
131.02 ± 6.03

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.486 ± 0.067 0.296 ± 0.099 -0.822 ± 0.549 -55.31 ± 2.54 148.63 ± 11.40
VC -0.665 ± 0.035 -0.497 ± 0.041 -0.557 ± 0.491 -33.85 ± 2.71 216.76 ± 3.24
MX1 -0.809 ± 0.027 -0.054 ± 0.046 -0.586 ± 0.507 -35.85 ± 2.63 183.79 ± 3.27
MX2 -0.864 ± 0.016 -0.160 ± 0.050 -0.478 ± 0.438 -28.55 ± 1.54 190.48 ± 3.29
MX3 -0.888 ± 0.018 -0.226 ± 0.060 -0.400 ± 0.377 -23.56 ± 1.50 194.26 ± 3.85
RH08 -0.872 ± 0.008 -0.210 ± 0.008 -0.441 ± 0.410 -26.19 ± 1.00 193.54 ± 0.53
RH09 -0.876 ± 0.034 -0.195 ± 0.063 -0.441 ± 0.410 -26.19 ± 4.07 192.53 ± 4.12
RH10 -0.881 ± 0.033 -0.196 ± 0.068 -0.430 ± 0.401 -25.48 ± 4.00 192.53 ± 4.41
Average -0.793 -0.155 -0.519 -31.873 189.066
Median -0.864 -0.195 -0.441 -26.189 192.535
Deviation 0.144 0.221 0.138 10.384 18.911

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 38.5 ± 3.6 302.9 ± 15.3 2.03 ± 0.25
VC 75.7 ± 2.4 475.6 ± 21.0 2.03 ± 0.25
MX1 48.7 ± 2.5 508.9 ± 19.0 2.03 ± 0.25
MX2 54.3 ± 2.2 544.9 ± 19.3 2.03 ± 0.25
MX3 58.2 ± 2.1 559.3 ± 19.3 2.03 ± 0.25
RH08 57.2 ± 2.1 552.1 ± 19.4 2.03 ± 0.25
RH09 56.3 ± 2.1 552.4 ± 19.3 2.03 ± 0.25
RH10 56.4 ± 2.1 554.6 ± 19.3 2.03 ± 0.25
Average 55.6 506.3 2.03
Median 56.4 552.1 2.03
Deviation 10.4 87.1 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 130.6 ± 3.9 47.2 ± 1.4 70.8 ± 5.1 103.7 ± 5.1 2.77 ± 0.08 1.26 ± 0.06
VC 205.8 ± 4.8 13.7 ± 0.4 22.4 ± 1.6 113.1 ± 5.1 15.03 ± 0.52 1.82 ± 0.09
MX1 184.7 ± 4.7 38.5 ± 1.1 59.6 ± 4.3 107.3 ± 5.1 4.80 ± 0.15 1.72 ± 0.08
MX2 191.6 ± 4.7 33.5 ± 1.0 52.8 ± 3.8 108.9 ± 5.1 5.72 ± 0.18 1.76 ± 0.08
MX3 191.6 ± 4.6 30.0 ± 0.9 47.6 ± 3.4 110.0 ± 5.1 6.39 ± 0.20 1.75 ± 0.08
RH8 193.0 ± 4.7 30.9 ± 0.9 49.0 ± 3.5 109.7 ± 5.1 6.25 ± 0.20 1.76 ± 0.08
RH9 192.1 ± 4.7 31.7 ± 1.0 50.1 ± 3.6 109.5 ± 5.1 6.06 ± 0.19 1.76 ± 0.08
RH10 191.5 ± 4.7 31.6 ± 1.0 50.0 ± 3.6 109.5 ± 5.1 6.06 ± 0.19 1.75 ± 0.08
Average 185.1 32.1 50.3 109.0 6.6 1.7
Median 191.6 31.7 50.1 109.5 6.1 1.8
Deviation 22.8 9.4 13.6 2.7 3.6 0.2

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 63.2 ± 2.7 63.2 ± 1.8 102.6 ± 4.7 146.0 ± 3.7 1.00 ± 0.04 0.43 ± 0.02
VC 99.6 ± 2.9 18.5 ± 0.4 32.5 ± 1.5 158.0 ± 3.2 5.39 ± 0.17 0.63 ± 0.01
MX1 90.1 ± 3.0 51.7 ± 1.3 86.5 ± 4.0 150.4 ± 3.4 1.74 ± 0.07 0.60 ± 0.02
MX2 93.8 ± 3.5 45.1 ± 1.1 76.5 ± 3.5 152.6 ± 3.4 2.08 ± 0.10 0.62 ± 0.02
MX3 93.3 ± 3.8 40.3 ± 1.0 69.1 ± 3.2 153.9 ± 3.3 2.31 ± 0.11 0.61 ± 0.02
RH8 94.2 ± 3.6 41.6 ± 1.0 71.0 ± 3.3 153.5 ± 3.3 2.27 ± 0.11 0.61 ± 0.02
RH9 93.8 ± 3.7 42.6 ± 1.0 72.7 ± 3.3 153.3 ± 3.3 2.20 ± 0.10 0.61 ± 0.02
RH10 93.5 ± 3.7 42.5 ± 1.0 72.6 ± 3.3 153.3 ± 3.3 2.20 ± 0.11 0.61 ± 0.02
Average 90.2 43.2 72.9 152.6 2.4 0.6
Median 93.8 42.6 72.7 153.3 2.2 0.6
Deviation 11.2 12.5 19.8 3.4 1.3 0.1

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)

   
 

Section Photo