CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20120720829
Observation time: 03/12/2012 72.35363 0829 [UT]

 Wind spacecraft

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 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 2012
Fractional day of year 72.353628
Arrival time of shock [seconds of day] 30553.5 ± 10.0
Shock type NN
Electron data availability 0
X GSE location of spacecraft [Re] 213.260
Y GSE location of spacecraft [Re] 96.520
Z GSE location of spacecraft [Re] -3.593
Upstream plasma points selected for analysis 0002
Upstream field points selected for analysis 0048
Downstream plasma points selected for analysis 0001
Downstream field points selected for analysis 0031
Minimum chisq/dof for RH8,RH9,RH10 -95.03, -81.67, -72.22
Event added to database
 Thu Sep 19 12:26:25 2013
Event last processed
 Mon Oct 7 14:06:41 2013
Method selected
 RH08
Propagation delay to Earth [minutes]
 0.020 ± 0.896

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -411.6 ± 5.3 -486.0 ± -486.0
Vy GSE [km/s] -14.8 ± 1.0 -83.3 ± -83.3
Vz GSE [km/s] -14.4 ± 12.5 -65.1 ± -65.1
Wi [km/s] 40.8 ± 1.9 58.0 ± 58.0
We [km/s] 1290.9 ± 61.6 1832.7 ± 1832.7
Ni [n/cc] 9.1 ± 1.5 16.3 ± 16.3
Bx GSE [nT] -5.5 ± 1.5 -8.7 ± -8.7
By GSE [nT] 6.7 ± 2.9 14.9 ± 14.9
Bz GSE [nT] 3.5 ± 3.3 -8.7 ± -8.7
Plasma Beta
 0.454 ± 0.694
 0.309 ± 0.309
Sound Speed [km/s]
 52.70 ± -0.00
 74.82 ± -0.00
Alfven Speed [km/s]
 67.96 ± -0.00
 104.34 ± -0.00

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.622 ± 0.184 0.572 ± 0.193 0.536 ± 0.477 32.39 ± 13.39 137.39 ± 15.98
VC -0.658 ± 0.032 -0.607 ± 0.031 -0.445 ± 0.413 -26.43 ± 4.66 222.67 ± 1.60
MX1 -0.965 ± 0.249 -0.235 ± 0.984 -0.115 ± 0.115 -6.63 ± 34.61 193.67 ± 58.38
MX2 -0.566 ± 0.085 -0.745 ± 0.072 -0.354 ± 0.338 -20.71 ± 7.75 232.74 ± 6.18
MX3 -0.640 ± 0.036 -0.699 ± 0.039 -0.318 ± 0.306 -18.52 ± 8.99 227.53 ± 1.08
RH08 -0.165 ± 0.068 0.649 ± 0.053 -0.743 ± 0.561 -47.99 ± 3.96 104.29 ± 5.94
RH09 -0.154 ± 0.024 0.651 ± 0.026 -0.743 ± 0.561 -47.99 ± 2.00 103.29 ± 2.00
RH10 -0.148 ± 0.023 0.626 ± 0.027 -0.765 ± 0.561 -49.94 ± 2.00 103.29 ± 2.00
Average -0.490 0.027 -0.368 -23.226 165.609
Median -0.566 0.572 -0.354 -20.707 193.670
Deviation 0.301 0.657 0.436 27.638 59.413

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 16.2 ± 8.6 ****** ± ****** 1.81 ± 0.29
VC 79.9 ± 9.6 ****** ± ****** 1.81 ± 0.29
MX1 67.4 ± 8.1 ****** ± ****** 1.81 ± 0.29
MX2 72.6 ± 8.1 ****** ± ****** 1.81 ± 0.29
MX3 77.9 ± 8.0 ****** ± ****** 1.81 ± 0.29
RH08 71.3 ± 10.4 ****** ± ****** 1.81 ± 0.29
RH09 71.6 ± 10.3 ****** ± ****** 1.81 ± 0.29
RH10 73.3 ± 10.4 ****** ± ****** 1.81 ± 0.29
Average 66.3 ****** 1.81
Median 72.6 ****** 1.81
Deviation 20.6 0.0 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC ******* ± -0.0 46.1 ± -0.0 65.2 ± -0.0 73.3 ± -0.0 ******* ± -1.00 ******* ± -1.00
VC ******* ± -0.0 7.1 ± -0.0 11.9 ± -0.0 86.6 ± -0.0 ******* ± -1.00 ******* ± -1.00
MX1 ******* ± -0.0 15.8 ± -0.0 26.1 ± -0.0 85.4 ± -0.0 ******* ± -1.00 ******* ± -1.00
MX2 ******* ± -0.0 12.2 ± -0.0 20.3 ± -0.0 86.0 ± -0.0 ******* ± -1.00 ******* ± -1.00
MX3 ******* ± -0.0 8.5 ± -0.0 14.3 ± -0.0 86.4 ± -0.0 ******* ± -1.00 ******* ± -1.00
RH8 ******* ± -0.0 13.1 ± -0.0 21.8 ± -0.0 85.9 ± -0.0 ******* ± -1.00 ******* ± -1.00
RH9 ******* ± -0.0 12.9 ± -0.0 21.5 ± -0.0 85.9 ± -0.0 ******* ± -1.00 ******* ± -1.00
RH10 ******* ± -0.0 11.7 ± -0.0 19.5 ± -0.0 86.1 ± -0.0 ******* ± -1.00 ******* ± -1.00
Average ******* 15.9 25.1 84.4 -8373.3 -1217.9
Median ******* 12.9 21.5 86.0 -7805.0 -1190.1
Deviation 126.8 12.5 16.8 4.5 3572.0 80.0

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC ******* ± -0.0 69.4 ± -0.0 100.2 ± -0.0 108.0 ± -0.0 ******* ± -1.00 -927.59 ± -1.00
VC ******* ± -0.0 10.7 ± -0.0 18.3 ± -0.0 128.0 ± -0.0 ******* ± -1.00 -784.66 ± -1.00
MX1 ******* ± -0.0 23.8 ± -0.0 40.1 ± -0.0 126.2 ± -0.0 ******* ± -1.00 -796.45 ± -1.00
MX2 ******* ± -0.0 18.4 ± -0.0 31.2 ± -0.0 127.1 ± -0.0 ******* ± -1.00 -789.75 ± -1.00
MX3 ******* ± -0.0 12.8 ± -0.0 21.9 ± -0.0 127.8 ± -0.0 ******* ± -1.00 -785.80 ± -1.00
RH8 ******* ± -0.0 19.7 ± -0.0 33.5 ± -0.0 126.9 ± -0.0 ******* ± -1.00 -788.79 ± -1.00
RH9 ******* ± -0.0 19.4 ± -0.0 32.9 ± -0.0 126.9 ± -0.0 ******* ± -1.00 -788.44 ± -1.00
RH10 ******* ± -0.0 17.6 ± -0.0 30.0 ± -0.0 127.2 ± -0.0 ******* ± -1.00 -786.82 ± -1.00
Average ******* 24.0 38.5 124.7 -5532.1 -806.0
Median ******* 19.4 32.9 127.1 -5152.2 -788.4
Deviation 173.6 18.8 25.8 6.8 2359.1 49.2

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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