CfA Interplanetary Shock Database - Individual Event Detail
 

Database: Wind Shock Analysis
Event ID: 20222040222
Observation time: 07/23/2022 204.09905 0222 [UT]

Wind spacecraft

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Asymptotic parameters
Shock front normals
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Wave speed and Mach numbers
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Simple methods
Rankine
Individual equations
Shock speed
Theta Bn
Mach numbers


General Information (About, Top)

Year 2022
Fractional day of year 204.099045
Arrival time of shock [seconds of day] 8557.5 ± 20.0
Shock type FF
Electron data availability 0
X GSE location of spacecraft [Re] 265.822
Y GSE location of spacecraft [Re] 1.769
Z GSE location of spacecraft [Re] 13.563
Upstream plasma points selected for analysis 0008
Upstream field points selected for analysis 0252
Downstream plasma points selected for analysis 0004
Downstream field points selected for analysis 0123
Minimum chisq/dof for RH8,RH9,RH10 6.03, 7.30, 7.68
Event added to database
Fri Aug 12 12:12:56 2022
Event last processed
Thu Sep 8 15:23:25 2022
Method selected
RH08
Propagation delay to Earth [minutes]
36.952 ± 0.238

Asymptotic plasma parameters (About, Top)

Parameter
Upstream
Downstream
Vx GSE [km/s] -541.2 ± 5.5 -694.7 ± 32.4
Vy GSE [km/s] -2.3 ± 10.1 58.9 ± 11.6
Vz GSE [km/s] -27.9 ± 9.8 -36.0 ± 14.6
Wi [km/s] 57.3 ± 3.5 107.4 ± 18.2
We [km/s] 1811.1 ± 111.0 3395.6 ± 575.4
Ni [n/cc] 3.6 ± 0.2 11.7 ± 2.6
Bx GSE [nT] 3.8 ± 0.3 5.3 ± 3.8
By GSE [nT] -4.6 ± 0.9 11.1 ± 3.5
Bz GSE [nT] -2.1 ± 0.8 -4.2 ± 4.6
Plasma Beta
0.598 ± 0.540
1.494 ± 1.875
Sound Speed [km/s]
73.94 ± 4.53
138.62 ± 23.49
Alfven Speed [km/s]
74.78 ± 4.36
92.63 ± 12.89

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]
MC -0.860 ± 0.099 0.208 ± 0.307 0.466 ± 0.429 27.77 ± 8.30 166.43 ± 20.42
VC -0.924 ± 0.037 0.376 ± 0.089 -0.062 ± 0.062 -3.55 ± 6.29 157.86 ± 5.53
MX1 -0.962 ± 0.083 0.071 ± 0.284 -0.263 ± 0.257 -15.25 ± 17.55 175.78 ± 16.89
MX2 -0.994 ± 0.025 0.112 ± 0.223 -0.012 ± 0.012 -0.71 ± 6.85 173.56 ± 12.85
MX3 -0.993 ± 0.024 0.107 ± 0.222 -0.054 ± 0.054 -3.12 ± 5.60 173.86 ± 12.79
RH08 -0.999 ± 0.001 -0.044 ± 0.028 -0.017 ± 0.017 -0.96 ± 0.83 182.51 ± 1.58
RH09 -1.000 ± 0.001 0.009 ± 0.071 -0.006 ± 0.006 -0.32 ± 2.76 179.50 ± 4.07
RH10 -1.000 ± 0.001 0.009 ± 0.072 -0.006 ± 0.006 -0.32 ± 3.11 179.50 ± 4.10
Average -0.966 0.106 0.006 0.441 173.623
Median -0.993 0.107 -0.012 -0.705 175.778
Deviation 0.050 0.134 0.205 12.107 8.044

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression
MC 34.7 ± 8.0 655.2 ± 6.0 3.28 ± 0.73
VC 37.0 ± 2.4 736.2 ± 4.5 3.28 ± 0.73
MX1 57.6 ± 2.0 753.0 ± 3.7 3.28 ± 0.73
MX2 48.1 ± 3.1 769.4 ± 4.8 3.28 ± 0.73
MX3 49.5 ± 2.8 769.7 ± 4.6 3.28 ± 0.73
RH08 56.0 ± 3.8 762.2 ± 4.7 3.28 ± 0.73
RH09 53.1 ± 3.7 765.8 ± 4.8 3.28 ± 0.73
RH10 53.1 ± 3.7 765.8 ± 26.5 3.28 ± 0.73
Average 48.7 747.2 3.28
Median 53.1 765.8 3.28
Deviation 8.5 38.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 203.1 ± 4.6 48.5 ± 1.4 61.4 ± 3.6 93.5 ± 2.7 4.19 ± 0.17 2.18 ± 0.09
VC 234.9 ± 5.8 46.6 ± 1.3 59.7 ± 3.5 94.4 ± 2.7 5.04 ± 0.24 2.49 ± 0.12
MX1 225.1 ± 6.2 29.2 ± 0.8 40.1 ± 2.3 101.2 ± 2.8 7.71 ± 0.39 2.23 ± 0.12
MX2 231.5 ± 5.3 37.4 ± 1.0 49.9 ± 2.9 98.4 ± 2.8 6.19 ± 0.29 2.36 ± 0.11
MX3 231.1 ± 5.4 36.2 ± 1.0 48.6 ± 2.8 98.9 ± 2.8 6.39 ± 0.30 2.34 ± 0.11
RH8 221.0 ± 5.6 30.6 ± 0.9 41.8 ± 2.4 100.7 ± 2.8 7.23 ± 0.35 2.20 ± 0.11
RH9 224.5 ± 5.4 33.1 ± 0.9 44.9 ± 2.6 99.9 ± 2.8 6.78 ± 0.32 2.25 ± 0.11
RH10 224.5 ± 5.4 33.1 ± 0.9 44.9 ± 2.6 99.9 ± 2.8 6.78 ± 0.32 2.25 ± 0.11
Average 224.5 36.9 48.9 98.4 6.3 2.3
Median 225.1 36.2 48.6 99.9 6.8 2.2
Deviation 9.8 7.1 7.9 2.9 1.2 0.1

Downstream wave speeds and mach numbers (About, Top)

Method
dV
Slow
Intermediate
Fast
Slow
Mach
Fast
Mach
MC 62.2 ± 35.2 67.7 ± 2.9 76.1 ± 10.6 153.6 ± 14.1 0.91 ± 0.48 0.42 ± 0.28
VC 69.5 ± 31.1 65.3 ± 2.7 73.9 ± 10.3 154.7 ± 13.9 1.06 ± 0.44 0.47 ± 0.25
MX1 71.0 ± 28.2 41.6 ± 1.3 49.6 ± 6.9 162.7 ± 12.7 1.70 ± 0.63 0.45 ± 0.21
MX2 72.0 ± 32.6 53.0 ± 1.9 61.9 ± 8.6 159.4 ± 13.1 1.35 ± 0.57 0.47 ± 0.25
MX3 71.7 ± 32.0 51.3 ± 1.8 60.2 ± 8.4 159.9 ± 13.0 1.39 ± 0.58 0.46 ± 0.25
RH8 70.2 ± 32.0 43.5 ± 1.4 51.7 ± 7.2 162.2 ± 12.7 1.60 ± 0.69 0.45 ± 0.24
RH9 70.4 ± 32.4 47.1 ± 1.6 55.6 ± 7.7 161.2 ± 12.9 1.49 ± 0.65 0.45 ± 0.24
RH10 70.4 ± 32.4 47.1 ± 1.6 55.6 ± 7.7 161.2 ± 12.9 1.49 ± 0.65 0.45 ± 0.24
Average 69.7 52.1 60.6 159.4 1.4 0.5
Median 70.4 51.3 60.2 161.2 1.5 0.4
Deviation 3.1 9.7 9.8 3.4 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 Thu Sep 8 16:00:47 2022
Michael L Stevens (mstevens@cfa.harvard.edu)

   
 

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