CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20012241612
Observation time: 08/12/2001 224.67554 1612 [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 224.675538
Arrival time of shock [seconds of day] 58366.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 42.550
Y GSE location of spacecraft [Re] 288.645
Z GSE location of spacecraft [Re] 18.420
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0240
Downstream plasma points selected for analysis 0006
Downstream field points selected for analysis 0197
Minimum chisq/dof for RH8,RH9,RH10 72.94, 27.23, 28.03
Event added to database
Mon Feb 14 11:14:43 2005
Event last processed
Mon Mar 30 21:22:35 2009
Method selected
RH08
Propagation delay to Earth [minutes]
-16.409 ± 6.667

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -336.9 ± 2.3 -360.4 ± 2.2
Vy GSE [km/s] -14.7 ± 2.7 15.4 ± 2.3
Vz GSE [km/s] 22.4 ± 3.3 -13.7 ± 1.3
Wi [km/s] 27.4 ± 0.8 31.8 ± 1.6
We [km/s] 865.7 ± 24.5 1006.0 ± 49.1
Ni [n/cc] 13.6 ± 0.6 22.7 ± 0.7
Bx GSE [nT] -4.4 ± 0.1 -4.4 ± 0.4
By GSE [nT] -7.8 ± 0.2 -11.5 ± 0.2
Bz GSE [nT] -3.6 ± 0.2 -5.3 ± 0.3
Plasma Beta
0.232 ± 0.221
0.270 ± 0.278
Sound Speed [km/s]
35.34 ± 1.00
41.07 ± 2.00
Alfven Speed [km/s]
56.97 ± 2.04
61.34 ± 1.66

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.999 ± 0.006 0.009 ± 0.117 -0.032 ± 0.032 -1.85 ± 10.08 179.51 ± 6.69
VC -0.448 ± 0.035 0.573 ± 0.035 -0.687 ± 0.550 -43.36 ± 2.86 128.00 ± 2.76
MX1 -0.553 ± 0.048 0.345 ± 0.057 -0.759 ± 0.561 -49.34 ± 3.13 148.03 ± 5.50
MX2 -0.526 ± 0.051 0.352 ± 0.056 -0.774 ± 0.560 -50.71 ± 3.50 146.18 ± 5.36
MX3 -0.465 ± 0.059 0.368 ± 0.058 -0.805 ± 0.555 -53.62 ± 4.35 141.59 ± 5.45
RH08 -0.697 ± 0.011 0.319 ± 0.011 -0.642 ± 0.535 -39.98 ± 0.97 155.43 ± 0.82
RH09 -0.876 ± 0.034 -0.085 ± 0.068 0.475 ± 0.435 28.35 ± 4.07 185.52 ± 4.47
RH10 -0.876 ± 0.034 -0.085 ± 0.068 0.475 ± 0.435 28.35 ± 4.07 185.52 ± 4.47
Average -0.680 0.225 -0.344 -22.769 158.722
Median -0.553 0.345 -0.642 -39.975 155.432
Deviation 0.214 0.245 0.562 35.502 21.999

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 62.5 ± 0.9 397.3 ± 7.8 1.66 ± 0.11
VC 90.0 ± 1.5 260.1 ± 13.8 1.66 ± 0.11
MX1 75.0 ± 1.5 291.6 ± 13.7 1.66 ± 0.11
MX2 75.7 ± 1.5 282.2 ± 13.7 1.66 ± 0.11
MX3 77.5 ± 1.5 260.6 ± 13.7 1.66 ± 0.11
RH08 72.4 ± 1.4 340.2 ± 13.2 1.66 ± 0.11
RH09 73.1 ± 0.5 308.5 ± 5.0 1.66 ± 0.11
RH10 73.1 ± 0.5 308.5 ± 5.0 1.66 ± 0.11
Average 74.9 306.1 1.66
Median 75.0 308.5 1.66
Deviation 7.6 45.5 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 61.4 ± 2.4 14.2 ± 0.3 26.3 ± 0.9 65.5 ± 1.6 4.34 ± 0.22 0.94 ± 0.06
VC 133.1 ± 4.5 0.0 ± 0.0 0.0 ± 0.0 67.1 ± 1.6 ******* ± ******* 1.99 ± 0.11
MX1 127.4 ± 4.4 7.8 ± 0.2 14.7 ± 0.5 66.6 ± 1.6 16.30 ± 0.82 1.92 ± 0.11
MX2 127.5 ± 4.4 7.4 ± 0.1 14.0 ± 0.5 66.6 ± 1.6 17.15 ± 0.86 1.92 ± 0.11
MX3 127.4 ± 4.5 6.6 ± 0.1 12.4 ± 0.4 66.7 ± 1.6 19.46 ± 0.98 1.91 ± 0.11
RH8 124.5 ± 4.3 9.2 ± 0.2 17.2 ± 0.6 66.4 ± 1.6 13.60 ± 0.68 1.88 ± 0.10
RH9 1.5 ± 1.2 8.8 ± 0.2 16.5 ± 0.6 66.5 ± 1.6 0.17 ± 0.13 0.02 ± 0.02
RH10 1.5 ± 1.2 8.8 ± 0.2 16.5 ± 0.6 66.5 ± 1.6 0.17 ± 0.13 0.02 ± 0.02
Average 88.0 7.8 14.7 66.5 27649.0 1.3
Median 127.4 8.8 16.5 66.6 16.3 1.9
Deviation 58.2 3.9 7.3 0.4 78174.5 0.9

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 36.5 ± 2.1 16.1 ± 0.6 28.3 ± 0.8 72.1 ± 1.6 2.27 ± 0.19 0.51 ± 0.04
VC 80.6 ± 1.6 0.0 ± 0.0 0.0 ± 0.0 73.8 ± 1.6 ******* ± 5965.70 1.09 ± 0.04
MX1 76.7 ± 1.4 8.9 ± 0.3 15.9 ± 0.4 73.3 ± 1.6 8.63 ± 0.41 1.05 ± 0.04
MX2 76.6 ± 1.4 8.5 ± 0.3 15.1 ± 0.4 73.4 ± 1.6 9.07 ± 0.42 1.04 ± 0.04
MX3 76.3 ± 1.3 7.4 ± 0.3 13.3 ± 0.4 73.5 ± 1.6 10.27 ± 0.47 1.04 ± 0.04
RH8 75.4 ± 1.7 10.4 ± 0.4 18.5 ± 0.5 73.1 ± 1.6 7.25 ± 0.37 1.03 ± 0.04
RH9 0.6 ± 2.1 10.0 ± 0.3 17.8 ± 0.5 73.2 ± 1.6 0.06 ± 0.21 0.01 ± 0.03
RH10 0.6 ± 2.1 10.0 ± 0.3 17.8 ± 0.5 73.2 ± 1.6 0.06 ± 0.21 0.01 ± 0.03
Average 52.9 8.9 15.8 73.2 14740.8 0.7
Median 76.3 10.0 17.8 73.3 8.6 1.0
Deviation 35.2 4.4 7.8 0.5 41678.1 0.5

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)

   
 

Section Photo