CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20151631231
Observation time: 06/12/2015 163.52204 1231 [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 2015
Fractional day of year 163.522037
Arrival time of shock [seconds of day] 45104.0 ± 60.0
Shock type NN
Electron data availability 0
X GSE location of spacecraft [Re] 205.739
Y GSE location of spacecraft [Re] -67.297
Z GSE location of spacecraft [Re] -6.179
Upstream plasma points selected for analysis 0004
Upstream field points selected for analysis 0137
Downstream plasma points selected for analysis 0004
Downstream field points selected for analysis 0143
Minimum chisq/dof for RH8,RH9,RH10 16.95, 45.74, 53.40
Event added to database
Thu Jan 28 17:01:19 2016
Event last processed
Tue May 17 16:59:58 2016
Method selected
RH08
Propagation delay to Earth [minutes]
50.756 ± 21.671

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -447.0 ± 1.1 -482.4 ± 0.1
Vy GSE [km/s] -24.6 ± 1.4 -40.4 ± 2.4
Vz GSE [km/s] -16.1 ± 1.4 -36.1 ± 2.2
Wi [km/s] 29.3 ± 0.6 40.2 ± 1.2
We [km/s] 927.3 ± 18.3 1271.1 ± 38.8
Ni [n/cc] 5.9 ± 0.3 11.8 ± 0.7
Bx GSE [nT] -2.2 ± 0.2 -2.9 ± 0.4
By GSE [nT] -0.8 ± 0.3 2.0 ± 0.5
Bz GSE [nT] -1.9 ± 0.2 -1.9 ± 0.3
Plasma Beta
1.148 ± 1.194
2.579 ± 2.614
Sound Speed [km/s]
37.86 ± 0.75
51.89 ± 1.59
Alfven Speed [km/s]
27.44 ± 1.33
25.24 ± 1.85

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.762 ± 0.053 -0.174 ± 0.127 -0.624 ± 0.527 -38.64 ± 4.23 192.85 ± 9.52
VC -0.813 ± 0.028 -0.362 ± 0.050 -0.457 ± 0.422 -27.16 ± 2.40 204.03 ± 3.45
MX1 -0.876 ± 0.222 -0.205 ± 0.163 -0.436 ± 0.406 -25.84 ± 29.62 193.14 ± 10.14
MX2 -0.849 ± 0.044 -0.200 ± 0.132 -0.488 ± 0.445 -29.23 ± 3.68 193.25 ± 8.90
MX3 -0.861 ± 0.040 -0.204 ± 0.134 -0.465 ± 0.428 -27.71 ± 3.16 193.33 ± 8.89
RH08 -0.400 ± 0.031 -0.104 ± 0.016 0.911 ± 0.473 65.59 ± 2.02 194.54 ± 1.98
RH09 -0.993 ± 0.008 -0.114 ± 0.068 -0.017 ± 0.017 -0.96 ± 4.05 186.52 ± 3.94
RH10 -0.993 ± 0.008 -0.114 ± 0.068 -0.017 ± 0.017 -0.96 ± 4.05 186.52 ± 3.94
Average -0.819 -0.184 -0.199 -10.613 193.022
Median -0.849 -0.174 -0.436 -25.840 193.248
Deviation 0.187 0.084 0.501 33.643 5.454

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 7.6 ± 5.2 440.8 ± 1.7 2.00 ± 0.14
VC 14.4 ± 1.3 469.3 ± 1.6 2.00 ± 0.14
MX1 14.9 ± 6.2 491.9 ± 1.6 2.00 ± 0.14
MX2 11.9 ± 6.5 480.4 ± 1.7 2.00 ± 0.14
MX3 13.2 ± 6.3 485.6 ± 1.6 2.00 ± 0.14
RH08 75.4 ± 4.4 163.7 ± 0.9 2.00 ± 0.14
RH09 40.0 ± 6.3 522.5 ± 1.4 2.00 ± 0.14
RH10 40.0 ± 6.3 522.5 ± 5.6 2.00 ± 0.14
Average 27.2 447.1 2.00
Median 14.9 485.6 2.00
Deviation 23.2 117.6 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 86.0 ± 1.5 26.9 ± 1.3 27.2 ± 1.3 38.2 ± 0.7 3.20 ± 0.15 2.25 ± 0.05
VC 89.8 ± 1.5 25.8 ± 1.1 26.6 ± 1.3 39.0 ± 0.7 3.49 ± 0.15 2.30 ± 0.05
MX1 88.0 ± 1.4 25.7 ± 1.1 26.5 ± 1.3 39.1 ± 0.7 3.43 ± 0.15 2.25 ± 0.05
MX2 87.9 ± 1.4 26.3 ± 1.2 26.8 ± 1.3 38.7 ± 0.7 3.35 ± 0.15 2.27 ± 0.05
MX3 88.0 ± 1.4 26.0 ± 1.1 26.7 ± 1.3 38.8 ± 0.7 3.39 ± 0.15 2.27 ± 0.05
RH8 -3.0 ± 1.1 5.6 ± 0.2 6.9 ± 0.3 46.4 ± 1.0 -0.52 ± 0.18 -0.06 ± 0.02
RH9 75.4 ± 1.1 18.5 ± 0.7 21.0 ± 1.0 42.9 ± 0.8 4.08 ± 0.18 1.76 ± 0.05
RH10 75.4 ± 1.1 18.5 ± 0.7 21.0 ± 1.0 42.9 ± 0.8 4.08 ± 0.18 1.76 ± 0.05
Average 73.4 21.7 22.8 40.8 3.1 1.8
Median 87.9 25.8 26.6 39.1 3.4 2.3
Deviation 31.4 7.4 6.9 3.0 1.5 0.8

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 43.8 ± 1.6 24.9 ± 1.8 25.0 ± 1.8 52.0 ± 1.6 1.76 ± 0.14 0.84 ± 0.03
VC 46.2 ± 1.6 24.2 ± 1.7 24.4 ± 1.8 52.4 ± 1.5 1.91 ± 0.14 0.88 ± 0.03
MX1 45.1 ± 1.3 24.1 ± 1.7 24.4 ± 1.8 52.4 ± 1.5 1.87 ± 0.14 0.86 ± 0.02
MX2 44.9 ± 1.4 24.5 ± 1.8 24.7 ± 1.8 52.2 ± 1.5 1.84 ± 0.14 0.86 ± 0.02
MX3 45.0 ± 1.3 24.4 ± 1.7 24.6 ± 1.8 52.3 ± 1.5 1.85 ± 0.14 0.86 ± 0.02
RH8 -0.6 ± 1.9 5.7 ± 0.3 6.4 ± 0.5 57.4 ± 1.1 -0.10 ± 0.34 -0.01 ± 0.03
RH9 38.1 ± 0.3 18.3 ± 1.1 19.3 ± 1.4 54.7 ± 1.2 2.09 ± 0.12 0.70 ± 0.01
RH10 38.1 ± 0.3 18.3 ± 1.1 19.3 ± 1.4 54.7 ± 1.2 2.09 ± 0.12 0.70 ± 0.01
Average 37.6 20.6 21.0 53.5 1.7 0.7
Median 44.9 24.2 24.4 52.4 1.9 0.9
Deviation 15.7 6.6 6.4 1.9 0.7 0.3

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 Wed Jan 22 21:47:00 2020
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

Section Photo