CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19960990241
Observation time: 04/08/1996 99.11193 0241 [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 1996
Fractional day of year 99.111927
Arrival time of shock [seconds of day] 9670.5 ± 3.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 82.966
Y GSE location of spacecraft [Re] 25.511
Z GSE location of spacecraft [Re] -2.530
Upstream plasma points selected for analysis 0009
Upstream field points selected for analysis 0272
Downstream plasma points selected for analysis 0010
Downstream field points selected for analysis 0287
Minimum chisq/dof for RH8,RH9,RH10 20.93, 42.41, 54.77
Event added to database
Mon Feb 14 11:02:22 2005
Event last processed
Mon Mar 30 16:10:58 2009
Method selected
RH08
Propagation delay to Earth [minutes]
23.228 ± 8.778

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -282.3 ± 2.1 -293.1 ± 0.8
Vy GSE [km/s] -24.9 ± 1.6 -35.0 ± 1.4
Vz GSE [km/s] -8.2 ± 1.3 18.3 ± 1.5
Wi [km/s] 15.2 ± 0.2 18.2 ± 0.2
We [km/s] 480.5 ± 5.9 575.8 ± 6.4
Ni [n/cc] 15.8 ± 0.2 26.4 ± 0.4
Bx GSE [nT] -3.8 ± 0.3 -6.5 ± 0.2
By GSE [nT] 4.0 ± 0.4 6.2 ± 0.3
Bz GSE [nT] 1.4 ± 0.2 0.8 ± 0.1
Plasma Beta
0.233 ± 0.232
0.227 ± 0.224
Sound Speed [km/s]
19.62 ± 0.24
23.51 ± 0.26
Alfven Speed [km/s]
31.51 ± 0.39
38.29 ± 0.86

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.875 ± 0.488 -0.101 ± 1.010 0.473 ± 0.434 28.21 ± 57.87 186.56 ± 65.98
VC -0.358 ± 0.064 -0.334 ± 0.061 0.872 ± 0.519 60.69 ± 5.52 222.98 ± 3.28
MX1 -0.436 ± 0.085 -0.226 ± 0.078 0.871 ± 0.519 60.57 ± 5.75 207.43 ± 8.73
MX2 -0.441 ± 0.077 -0.241 ± 0.069 0.865 ± 0.525 59.83 ± 5.35 208.71 ± 7.41
MX3 -0.448 ± 0.070 -0.261 ± 0.061 0.855 ± 0.532 58.75 ± 4.95 210.22 ± 6.13
RH08 -0.378 ± 0.027 -0.261 ± 0.022 0.888 ± 0.502 62.66 ± 2.00 214.60 ± 2.00
RH09 0.090 ± 0.054 0.317 ± 0.068 0.944 ± 0.407 70.76 ± 4.18 74.21 ± 9.07
RH10 0.090 ± 0.070 0.317 ± 0.066 0.944 ± 0.407 70.76 ± 4.00 74.21 ± 12.18
Average -0.345 -0.099 0.839 59.028 174.863
Median -0.378 -0.226 0.872 60.694 208.709
Deviation 0.314 0.265 0.152 13.330 62.963

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 51.0 ± 3.7 303.5 ± 3.2 1.68 ± 0.03
VC 77.3 ± 1.2 178.9 ± 4.1 1.68 ± 0.03
MX1 69.7 ± 1.2 197.5 ± 3.9 1.68 ± 0.03
MX2 70.3 ± 1.3 199.4 ± 3.9 1.68 ± 0.03
MX3 71.0 ± 1.3 202.2 ± 3.9 1.68 ± 0.03
RH08 73.3 ± 1.1 182.3 ± 4.0 1.68 ± 0.03
RH09 66.8 ± 3.6 10.6 ± 4.4 1.68 ± 0.03
RH10 66.8 ± 3.6 10.6 ± 4.4 1.68 ± 0.03
Average 68.3 160.6 1.68
Median 70.3 197.5 1.68
Deviation 7.8 100.6 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 57.8 ± 1.5 11.0 ± 0.1 19.9 ± 0.2 35.5 ± 0.4 5.26 ± 0.18 1.63 ± 0.06
VC 76.7 ± 0.7 3.7 ± 0.0 6.9 ± 0.1 36.9 ± 0.4 20.86 ± 0.28 2.08 ± 0.03
MX1 76.0 ± 0.7 5.8 ± 0.1 10.9 ± 0.1 36.7 ± 0.4 13.01 ± 0.18 2.07 ± 0.03
MX2 76.1 ± 0.7 5.7 ± 0.1 10.6 ± 0.1 36.7 ± 0.4 13.38 ± 0.19 2.07 ± 0.03
MX3 76.2 ± 0.7 5.5 ± 0.1 10.3 ± 0.1 36.7 ± 0.4 13.88 ± 0.20 2.08 ± 0.03
RH8 76.4 ± 0.7 4.8 ± 0.0 9.1 ± 0.1 36.8 ± 0.4 15.80 ± 0.20 2.08 ± 0.03
RH9 51.5 ± 1.8 6.7 ± 0.1 12.4 ± 0.2 36.5 ± 0.4 7.72 ± 0.23 1.41 ± 0.04
RH10 51.5 ± 1.8 6.7 ± 0.1 12.4 ± 0.2 36.5 ± 0.4 7.72 ± 0.23 1.41 ± 0.04
Average 67.8 6.2 11.6 36.5 12.2 1.9
Median 76.1 5.8 10.9 36.7 13.4 2.1
Deviation 11.9 2.2 3.8 0.5 5.1 0.3

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 34.7 ± 1.3 13.2 ± 0.1 24.1 ± 0.5 43.0 ± 0.7 2.63 ± 0.10 0.81 ± 0.04
VC 46.3 ± 1.7 4.4 ± 0.0 8.4 ± 0.2 44.7 ± 0.7 10.47 ± 0.39 1.04 ± 0.05
MX1 45.8 ± 1.6 7.0 ± 0.1 13.3 ± 0.3 44.4 ± 0.7 6.53 ± 0.24 1.03 ± 0.05
MX2 45.9 ± 1.6 6.8 ± 0.1 12.9 ± 0.3 44.4 ± 0.7 6.72 ± 0.25 1.03 ± 0.05
MX3 46.0 ± 1.6 6.6 ± 0.1 12.5 ± 0.3 44.4 ± 0.7 6.97 ± 0.26 1.04 ± 0.05
RH8 46.1 ± 1.7 5.8 ± 0.0 11.0 ± 0.2 44.6 ± 0.7 7.92 ± 0.29 1.03 ± 0.05
RH9 30.7 ± 1.3 8.0 ± 0.1 15.1 ± 0.3 44.2 ± 0.7 3.83 ± 0.17 0.70 ± 0.03
RH10 30.7 ± 1.3 8.0 ± 0.1 15.1 ± 0.3 44.2 ± 0.7 3.83 ± 0.17 0.70 ± 0.03
Average 40.8 7.5 14.1 44.2 6.1 0.9
Median 45.9 7.0 13.3 44.4 6.7 1.0
Deviation 7.3 2.6 4.6 0.5 2.6 0.2

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)

   
 

Section Photo