CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20141091748
Observation time: 04/19/2014 109.74193 1748 [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 2014
Fractional day of year 109.741927
Arrival time of shock [seconds of day] 64102.5 ± 40.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 259.961
Y GSE location of spacecraft [Re] -24.579
Z GSE location of spacecraft [Re] 20.334
Upstream plasma points selected for analysis 0004
Upstream field points selected for analysis 0137
Downstream plasma points selected for analysis 0003
Downstream field points selected for analysis 0087
Minimum chisq/dof for RH8,RH9,RH10 12.75, 27.84, 41.89
Event added to database
Wed Jun 11 01:51:22 2014
Event last processed
Wed Jun 11 03:12:13 2014
Method selected
RH08
Propagation delay to Earth [minutes]
47.871 ± 0.742

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -478.0 ± 0.8 -507.3 ± 1.6
Vy GSE [km/s] -7.0 ± 1.0 -21.3 ± 1.4
Vz GSE [km/s] 10.5 ± 0.8 -2.7 ± 3.5
Wi [km/s] 17.8 ± 0.5 22.9 ± 1.7
We [km/s] 564.3 ± 15.5 723.5 ± 54.9
Ni [n/cc] 6.3 ± 0.2 10.9 ± 0.7
Bx GSE [nT] -3.8 ± 0.2 -3.7 ± 0.6
By GSE [nT] 1.9 ± 0.2 2.5 ± 1.1
Bz GSE [nT] 3.5 ± 0.3 7.7 ± 0.4
Plasma Beta
0.139 ± 0.144
0.151 ± 0.130
Sound Speed [km/s]
23.04 ± 0.63
29.53 ± 2.24
Alfven Speed [km/s]
47.89 ± 1.29
59.49 ± 3.11

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.960 ± 0.055 0.280 ± 0.189 -0.014 ± 0.014 -0.82 ± 9.49 163.74 ± 11.26
VC -0.833 ± 0.036 -0.406 ± 0.036 -0.376 ± 0.357 -22.08 ± 5.44 205.99 ± 2.25
MX1 -0.990 ± 0.018 -0.133 ± 0.132 0.047 ± 0.047 2.67 ± 5.19 187.63 ± 7.61
MX2 -0.962 ± 0.012 -0.268 ± 0.041 0.042 ± 0.042 2.42 ± 3.55 195.57 ± 2.44
MX3 -0.912 ± 0.047 -0.408 ± 0.104 0.037 ± 0.037 2.15 ± 2.27 204.09 ± 6.55
RH08 -0.982 ± 0.008 -0.183 ± 0.042 0.039 ± 0.039 2.24 ± 1.77 190.53 ± 2.47
RH09 -0.979 ± 0.014 -0.200 ± 0.067 0.028 ± 0.028 1.60 ± 4.06 191.53 ± 3.91
RH10 -0.979 ± 0.014 -0.200 ± 0.067 0.028 ± 0.028 1.60 ± 4.06 191.53 ± 3.91
Average -0.950 -0.190 -0.021 -1.277 191.328
Median -0.962 -0.200 0.037 2.145 191.532
Deviation 0.053 0.215 0.145 8.474 12.935

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 41.6 ± 3.4 517.6 ± 2.0 1.76 ± 0.10
VC 78.9 ± 1.8 483.3 ± 2.3 1.76 ± 0.10
MX1 48.4 ± 1.8 551.1 ± 2.7 1.76 ± 0.10
MX2 53.5 ± 1.4 541.8 ± 2.8 1.76 ± 0.10
MX3 59.4 ± 1.1 520.3 ± 2.8 1.76 ± 0.10
RH08 50.5 ± 1.6 549.2 ± 2.7 1.76 ± 0.10
RH09 51.6 ± 1.6 548.5 ± 2.7 1.76 ± 0.10
RH10 51.6 ± 1.6 548.5 ± 9.0 1.76 ± 0.10
Average 54.5 532.5 1.76
Median 51.6 548.5 1.76
Deviation 11.1 23.9 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 60.9 ± 1.0 16.3 ± 0.4 35.8 ± 1.0 50.6 ± 1.2 3.74 ± 0.15 1.20 ± 0.04
VC 86.2 ± 0.8 4.0 ± 0.1 9.2 ± 0.2 53.0 ± 1.2 21.62 ± 0.64 1.63 ± 0.04
MX1 76.4 ± 0.7 14.3 ± 0.3 31.8 ± 0.9 51.2 ± 1.2 5.35 ± 0.17 1.49 ± 0.04
MX2 79.4 ± 0.6 12.7 ± 0.3 28.5 ± 0.8 51.6 ± 1.2 6.25 ± 0.19 1.54 ± 0.04
MX3 81.0 ± 0.5 10.8 ± 0.3 24.4 ± 0.7 52.0 ± 1.2 7.52 ± 0.21 1.56 ± 0.04
RH8 77.9 ± 0.7 13.7 ± 0.3 30.5 ± 0.8 51.4 ± 1.2 5.70 ± 0.18 1.52 ± 0.04
RH9 78.6 ± 0.7 13.3 ± 0.3 29.7 ± 0.8 51.5 ± 1.2 5.91 ± 0.18 1.53 ± 0.04
RH10 78.6 ± 0.7 13.3 ± 0.3 29.7 ± 0.8 51.5 ± 1.2 5.91 ± 0.18 1.53 ± 0.04
Average 77.4 12.3 27.4 51.6 7.7 1.5
Median 78.6 13.3 29.7 51.5 5.9 1.5
Deviation 7.3 3.7 8.0 0.7 5.7 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 36.6 ± 1.3 20.8 ± 1.2 44.5 ± 2.3 63.1 ± 2.3 1.76 ± 0.06 0.58 ± 0.04
VC 51.1 ± 1.3 5.1 ± 0.2 11.4 ± 0.6 66.3 ± 1.8 10.08 ± 0.37 0.77 ± 0.03
MX1 46.1 ± 1.9 18.2 ± 1.0 39.5 ± 2.1 63.9 ± 2.1 2.53 ± 0.04 0.72 ± 0.05
MX2 48.0 ± 2.0 16.2 ± 0.9 35.4 ± 1.8 64.5 ± 2.1 2.97 ± 0.04 0.75 ± 0.05
MX3 49.0 ± 2.0 13.7 ± 0.7 30.3 ± 1.6 65.0 ± 2.0 3.57 ± 0.04 0.75 ± 0.05
RH8 47.0 ± 1.9 17.4 ± 1.0 37.8 ± 2.0 64.1 ± 2.1 2.70 ± 0.04 0.73 ± 0.05
RH9 47.5 ± 1.9 16.9 ± 0.9 36.9 ± 1.9 64.3 ± 2.1 2.80 ± 0.04 0.74 ± 0.05
RH10 47.5 ± 1.9 16.9 ± 0.9 36.9 ± 1.9 64.3 ± 2.1 2.80 ± 0.04 0.74 ± 0.05
Average 46.6 15.7 34.1 64.4 3.7 0.7
Median 47.5 16.9 36.9 64.3 2.8 0.7
Deviation 4.3 4.7 10.0 0.9 2.6 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 Fri Jun 13 11:06:02 2014
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

Section Photo