CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 19993461554
Observation time: 12/12/1999 346.66283 1554 [UT]

Wind spacecraft

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Wave speed and Mach numbers
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Simple methods
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Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 1999
Fractional day of year 346.662830
Arrival time of shock [seconds of day] 57268.5 ± 18.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] -12.624
Y GSE location of spacecraft [Re] -56.476
Z GSE location of spacecraft [Re] 16.222
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0260
Downstream plasma points selected for analysis 0007
Downstream field points selected for analysis 0226
Minimum chisq/dof for RH8,RH9,RH10 2.08, 10.39, 10.71
Event added to database
Thu Nov 10 09:57:53 2005
Event last processed
Tue Mar 31 00:29:00 2009
Method selected
RH08
Propagation delay to Earth [minutes]
-2.200 ± 0.464

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -364.2 ± 7.6 -503.7 ± 9.5
Vy GSE [km/s] -23.6 ± 8.0 -77.4 ± 9.1
Vz GSE [km/s] 12.3 ± 10.2 -44.9 ± 39.3
Wi [km/s] 21.9 ± 4.2 71.5 ± 8.3
We [km/s] 694.0 ± 132.1 2261.1 ± 261.5
Ni [n/cc] 0.6 ± 0.1 2.1 ± 0.4
Bx GSE [nT] -3.0 ± 0.2 -2.9 ± 0.6
By GSE [nT] 3.3 ± 0.1 11.3 ± 1.5
Bz GSE [nT] -1.5 ± 0.2 -1.3 ± 1.9
Plasma Beta
0.030 ± 0.033
0.173 ± 0.127
Sound Speed [km/s]
28.33 ± 5.39
92.31 ± 10.68
Alfven Speed [km/s]
135.02 ± 16.20
181.63 ± 25.49

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.901 ± 0.078 0.057 ± 0.116 -0.430 ± 0.401 -25.48 ± 10.35 176.40 ± 7.40
VC -0.880 ± 0.065 -0.336 ± 0.055 -0.337 ± 0.323 -19.67 ± 11.28 200.93 ± 3.27
MX1 -0.924 ± 0.052 0.049 ± 0.108 -0.378 ± 0.359 -22.21 ± 7.89 176.94 ± 6.69
MX2 -0.931 ± 0.048 0.046 ± 0.105 -0.362 ± 0.346 -21.24 ± 7.48 177.15 ± 6.46
MX3 -0.934 ± 0.046 0.045 ± 0.104 -0.353 ± 0.338 -20.70 ± 7.44 177.24 ± 6.38
RH08 -0.991 ± 0.004 -0.026 ± 0.009 -0.128 ± 0.128 -7.38 ± 1.90 181.50 ± 0.51
RH09 -0.976 ± 0.015 -0.009 ± 0.071 -0.218 ± 0.214 -12.58 ± 3.96 180.50 ± 4.17
RH10 -0.978 ± 0.014 -0.009 ± 0.071 -0.207 ± 0.204 -11.93 ± 3.96 180.50 ± 4.16
Average -0.939 -0.023 -0.302 -17.650 181.397
Median -0.931 0.045 -0.337 -19.666 180.501
Deviation 0.040 0.131 0.104 6.236 8.134

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 40.7 ± 2.4 538.0 ± 41.9 3.39 ± 0.77
VC 63.8 ± 2.5 552.6 ± 45.7 3.39 ± 0.77
MX1 41.3 ± 2.5 549.6 ± 41.3 3.39 ± 0.77
MX2 41.6 ± 2.6 551.7 ± 41.1 3.39 ± 0.77
MX3 41.7 ± 2.6 552.7 ± 41.0 3.39 ± 0.77
RH08 48.7 ± 3.0 564.0 ± 39.9 3.39 ± 0.77
RH09 46.2 ± 2.9 560.7 ± 40.4 3.39 ± 0.77
RH10 46.4 ± 2.9 561.8 ± 40.3 3.39 ± 0.77
Average 46.3 553.9 3.39
Median 46.2 552.7 3.39
Deviation 7.7 8.4 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 216.5 ± 9.4 21.2 ± 3.9 102.3 ± 12.3 136.4 ± 15.6 10.49 ± 1.81 1.61 ± 0.22
VC 228.5 ± 11.5 12.2 ± 2.2 59.6 ± 7.2 137.6 ± 15.1 19.14 ± 3.12 1.68 ± 0.24
MX1 218.7 ± 9.2 21.0 ± 3.9 101.4 ± 12.2 136.5 ± 15.6 10.70 ± 1.86 1.62 ± 0.22
MX2 218.2 ± 9.1 20.9 ± 3.9 101.0 ± 12.1 136.5 ± 15.6 10.72 ± 1.86 1.62 ± 0.22
MX3 217.8 ± 9.1 20.9 ± 3.9 100.8 ± 12.1 136.5 ± 15.6 10.72 ± 1.86 1.62 ± 0.22
RH8 203.9 ± 8.5 18.4 ± 3.4 89.2 ± 10.7 136.9 ± 15.4 11.38 ± 1.97 1.51 ± 0.20
RH9 207.8 ± 8.8 19.3 ± 3.5 93.4 ± 11.2 136.7 ± 15.4 11.05 ± 1.91 1.54 ± 0.21
RH10 207.8 ± 8.8 19.3 ± 3.5 93.1 ± 11.2 136.7 ± 15.4 11.09 ± 1.92 1.54 ± 0.21
Average 214.9 19.2 92.6 136.7 11.9 1.6
Median 217.8 20.9 100.8 136.7 11.1 1.6
Deviation 8.0 3.0 14.2 0.4 2.9 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 69.3 ± 22.1 65.2 ± 5.3 137.6 ± 19.3 193.7 ± 21.3 1.06 ± 0.33 0.36 ± 0.13
VC 68.5 ± 18.7 36.5 ± 2.8 80.2 ± 11.3 201.2 ± 20.5 1.88 ± 0.51 0.35 ± 0.11
MX1 70.8 ± 20.3 64.5 ± 5.3 136.4 ± 19.1 193.9 ± 21.2 1.10 ± 0.31 0.37 ± 0.13
MX2 70.1 ± 19.8 64.2 ± 5.2 135.8 ± 19.1 194.0 ± 21.2 1.09 ± 0.30 0.37 ± 0.12
MX3 69.7 ± 19.5 64.1 ± 5.2 135.5 ± 19.0 194.1 ± 21.2 1.09 ± 0.30 0.37 ± 0.12
RH8 56.9 ± 12.5 55.9 ± 4.4 119.9 ± 16.8 196.6 ± 20.9 1.02 ± 0.23 0.30 ± 0.08
RH9 58.7 ± 15.1 58.8 ± 4.7 125.6 ± 17.6 195.7 ± 21.0 1.00 ± 0.26 0.31 ± 0.10
RH10 59.1 ± 14.8 58.6 ± 4.7 125.3 ± 17.6 195.8 ± 21.0 1.01 ± 0.25 0.31 ± 0.09
Average 65.4 58.5 124.6 195.6 1.2 0.3
Median 69.3 64.1 135.5 195.7 1.1 0.4
Deviation 6.0 9.5 19.1 2.5 0.3 0.0

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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