MIT/CSR Interplanetary Shocks

MIT Space Plasma Group
Interplanetary Shock Analysis Pages

Database: Wind Shock Analysis
Event ID: 20022321350
08/20/2002 232.57686 1350 [UT]

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 2002

Fractional day of year 232.576858

Arrival time of shock [seconds of day] 49840.5 ± 6.0

Shock type FF

Electron data availability 0

X GSE location of spacecraft [Re] 45.775

Y GSE location of spacecraft [Re] 78.732

Z GSE location of spacecraft [Re] 5.240

Upstream plasma points selected for analysis 0007

Upstream field points selected for analysis 0260

Downstream plasma points selected for analysis 0007

Downstream field points selected for analysis 0260

Minimum chisq/dof for RH8,RH9,RH10 2.40, 3.32, 3.43

Event added to database
Sat Mar 12 23:19:10 2005

Event last processed
Sun Mar 13 11:41:56 2005

Method selected
RH08

Propagation delay to Earth [minutes]
6.365 ± 0.776

Asymptotic plasma parameters (About, Top)

Parameter Upstream Downstream

Vx GSE [km/s] -465.3 ± 1.1 -486.7 ± 5.7

Vy GSE [km/s] -3.8 ± 0.8 -19.1 ± 5.2

Vz GSE [km/s] 3.3 ± 0.9 22.1 ± 12.7

Wi [km/s] 14.5 ± 0.7 17.9 ± 0.8

We [km/s] 459.8 ± 23.0 565.6 ± 25.8

Ni [n/cc] 2.8 ± 0.1 3.7 ± 0.2

Bx GSE [nT] 4.5 ± 0.1 4.7 ± 1.0

By GSE [nT] -3.8 ± 0.1 -6.2 ± 0.7

Bz GSE [nT] 1.0 ± 0.1 2.0 ± 1.3

Plasma Beta
0.035 ± 0.036
0.037 ± 0.035

Sound Speed [km/s]
18.77 ± 0.94
23.09 ± 1.05

Alfven Speed [km/s]
77.70 ± 1.79
92.74 ± 2.40

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]

MC -0.957 ± 0.081 0.193 ± 0.215 0.215 ± 0.212 12.44 ± 18.62 168.60 ± 12.85

VC -0.673 ± 0.170 -0.476 ± 0.153 0.566 ± 0.496 34.44 ± 18.75 215.29 ± 9.34

MX1 -0.948 ± 0.069 0.160 ± 0.200 0.275 ± 0.267 15.93 ± 12.75 170.44 ± 12.05

MX2 -0.936 ± 0.056 0.145 ± 0.182 0.321 ± 0.309 18.71 ± 8.77 171.17 ± 11.15

MX3 -0.897 ± 0.037 0.110 ± 0.144 0.428 ± 0.400 25.34 ± 4.40 173.00 ± 9.20

RH08 -0.968 ± 0.009 0.128 ± 0.025 0.218 ± 0.214 12.58 ± 2.19 172.48 ± 1.50

RH09 -0.960 ± 0.020 0.161 ± 0.069 0.229 ± 0.225 13.24 ± 3.98 170.47 ± 4.12

RH10 -0.965 ± 0.018 0.145 ± 0.070 0.218 ± 0.214 12.58 ± 3.97 171.48 ± 4.16

Average -0.913 0.071 0.309 18.159 176.616

Median -0.948 0.145 0.275 15.933 171.476

Deviation 0.100 0.222 0.127 7.937 15.684

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression

MC 35.8 ± 1.0 532.7 ± 37.1 1.31 ± 0.09

VC 83.3 ± 1.0 455.8 ± 34.4 1.31 ± 0.09

MX1 39.3 ± 0.9 535.2 ± 36.5 1.31 ± 0.09

MX2 41.6 ± 0.9 535.1 ± 35.6 1.31 ± 0.09

MX3 47.3 ± 0.9 528.0 ± 33.5 1.31 ± 0.09

RH08 38.9 ± 1.0 541.1 ± 39.1 1.31 ± 0.09

RH09 37.7 ± 1.0 536.9 ± 37.7 1.31 ± 0.09

RH10 38.1 ± 1.0 538.6 ± 38.6 1.31 ± 0.09

Average 45.3 525.4 1.31

Median 39.3 535.2 1.31

Deviation 15.8 28.4 0.00

Upstream wave speeds and mach numbers (About, Top)

Method dV Slow Intermediate Fast Slow
Mach
Fast
Mach

MC 87.4 ± 0.9 15.1 ± 0.7 63.1 ± 1.5 78.5 ± 1.7 5.81 ± 0.30 1.11 ± 0.03

VC 138.9 ± 1.0 2.1 ± 0.1 9.0 ± 0.2 79.9 ± 1.6 65.79 ± 3.01 1.74 ± 0.04

MX1 93.7 ± 0.9 14.3 ± 0.7 60.1 ± 1.4 78.6 ± 1.7 6.54 ± 0.33 1.19 ± 0.03

MX2 99.1 ± 0.8 13.8 ± 0.7 58.1 ± 1.3 78.7 ± 1.7 7.17 ± 0.36 1.26 ± 0.03

MX3 109.6 ± 0.8 12.5 ± 0.6 52.7 ± 1.2 79.0 ± 1.7 8.77 ± 0.42 1.39 ± 0.03

RH8 90.7 ± 0.9 14.4 ± 0.7 60.4 ± 1.4 78.6 ± 1.7 6.30 ± 0.32 1.15 ± 0.03

RH9 90.1 ± 0.9 14.7 ± 0.7 61.5 ± 1.4 78.6 ± 1.7 6.15 ± 0.31 1.15 ± 0.03

RH10 89.3 ± 0.9 14.6 ± 0.7 61.1 ± 1.4 78.6 ± 1.7 6.13 ± 0.31 1.14 ± 0.03

Average 99.8 12.7 53.2 78.8 14.1 1.3

Median 93.7 14.4 60.4 78.6 6.5 1.2

Deviation 17.3 4.3 18.2 0.5 20.9 0.2

Downstream wave speeds and mach numbers (About, Top)

Method dV Slow Intermediate Fast Slow
Mach
Fast
Mach

MC 65.8 ± 4.6 18.5 ± 0.8 75.3 ± 1.9 93.8 ± 2.3 3.55 ± 0.24 0.70 ± 0.05

VC 106.5 ± 4.0 2.6 ± 0.1 10.7 ± 0.3 95.5 ± 2.1 41.04 ± 1.55 1.12 ± 0.05

MX1 70.6 ± 4.6 17.6 ± 0.8 71.8 ± 1.9 93.9 ± 2.3 4.01 ± 0.25 0.75 ± 0.05

MX2 75.2 ± 4.7 17.0 ± 0.7 69.3 ± 1.8 94.0 ± 2.3 4.42 ± 0.26 0.80 ± 0.05

MX3 84.0 ± 5.2 15.4 ± 0.7 62.9 ± 1.6 94.3 ± 2.2 5.46 ± 0.31 0.89 ± 0.06

RH8 67.8 ± 4.5 17.7 ± 0.8 72.1 ± 1.9 93.9 ± 2.3 3.83 ± 0.26 0.72 ± 0.05

RH9 67.7 ± 4.6 18.1 ± 0.8 73.4 ± 1.9 93.9 ± 2.3 3.75 ± 0.25 0.72 ± 0.05

RH10 66.8 ± 4.6 17.9 ± 0.8 73.0 ± 1.9 93.9 ± 2.3 3.72 ± 0.25 0.71 ± 0.05

Average 75.6 15.6 63.6 94.2 8.7 0.8

Median 70.6 17.7 72.1 93.9 4.0 0.8

Deviation 13.9 5.3 21.7 0.6 13.1 0.1

Survey interval (About, Top)

Selected data (About, Top)

Key plasma parameters

Velocity

Magnetic Field

Simple Methods (About, Top)

Rankine Chi^2 Contour (About, Top)

Conservation of Individual Rankine-Hugoniot Equations (About, Top)

Shock Speed (About, Top)

Theta Bn (About, Top)

Mach Numbers (About, Top)

Page updated Sun Mar 13 12:08:53 2005
Justin C Kasper (jck@mit.edu)

Year	2002
Fractional day of year	232.576858
Arrival time of shock [seconds of day]	49840.5 ± 6.0
Shock type	FF
Electron data availability	0
X GSE location of spacecraft [Re]	45.775
Y GSE location of spacecraft [Re]	78.732
Z GSE location of spacecraft [Re]	5.240
Upstream plasma points selected for analysis	0007
Upstream field points selected for analysis	0260
Downstream plasma points selected for analysis	0007
Downstream field points selected for analysis	0260
Minimum chisq/dof for RH8,RH9,RH10	2.40, 3.32, 3.43
Event added to database	Sat Mar 12 23:19:10 2005
Event last processed	Sun Mar 13 11:41:56 2005
Method selected	RH08
Propagation delay to Earth [minutes]	6.365 ± 0.776

Parameter	Upstream	Downstream
Vx GSE [km/s]	-465.3 ± 1.1	-486.7 ± 5.7
Vy GSE [km/s]	-3.8 ± 0.8	-19.1 ± 5.2
Vz GSE [km/s]	3.3 ± 0.9	22.1 ± 12.7
Wi [km/s]	14.5 ± 0.7	17.9 ± 0.8
We [km/s]	459.8 ± 23.0	565.6 ± 25.8
Ni [n/cc]	2.8 ± 0.1	3.7 ± 0.2
Bx GSE [nT]	4.5 ± 0.1	4.7 ± 1.0
By GSE [nT]	-3.8 ± 0.1	-6.2 ± 0.7
Bz GSE [nT]	1.0 ± 0.1	2.0 ± 1.3
Plasma Beta	0.035 ± 0.036	0.037 ± 0.035
Sound Speed [km/s]	18.77 ± 0.94	23.09 ± 1.05
Alfven Speed [km/s]	77.70 ± 1.79	92.74 ± 2.40

Method	Nx	Ny	Nz	Theta [degrees]	Phi [degrees]
MC	-0.957 ± 0.081	0.193 ± 0.215	0.215 ± 0.212	12.44 ± 18.62	168.60 ± 12.85
VC	-0.673 ± 0.170	-0.476 ± 0.153	0.566 ± 0.496	34.44 ± 18.75	215.29 ± 9.34
MX1	-0.948 ± 0.069	0.160 ± 0.200	0.275 ± 0.267	15.93 ± 12.75	170.44 ± 12.05
MX2	-0.936 ± 0.056	0.145 ± 0.182	0.321 ± 0.309	18.71 ± 8.77	171.17 ± 11.15
MX3	-0.897 ± 0.037	0.110 ± 0.144	0.428 ± 0.400	25.34 ± 4.40	173.00 ± 9.20
RH08	-0.968 ± 0.009	0.128 ± 0.025	0.218 ± 0.214	12.58 ± 2.19	172.48 ± 1.50
RH09	-0.960 ± 0.020	0.161 ± 0.069	0.229 ± 0.225	13.24 ± 3.98	170.47 ± 4.12
RH10	-0.965 ± 0.018	0.145 ± 0.070	0.218 ± 0.214	12.58 ± 3.97	171.48 ± 4.16
Average	-0.913	0.071	0.309	18.159	176.616
Median	-0.948	0.145	0.275	15.933	171.476
Deviation	0.100	0.222	0.127	7.937	15.684

Method	ThetaBn	Shock Speed	Compression
MC	35.8 ± 1.0	532.7 ± 37.1	1.31 ± 0.09
VC	83.3 ± 1.0	455.8 ± 34.4	1.31 ± 0.09
MX1	39.3 ± 0.9	535.2 ± 36.5	1.31 ± 0.09
MX2	41.6 ± 0.9	535.1 ± 35.6	1.31 ± 0.09
MX3	47.3 ± 0.9	528.0 ± 33.5	1.31 ± 0.09
RH08	38.9 ± 1.0	541.1 ± 39.1	1.31 ± 0.09
RH09	37.7 ± 1.0	536.9 ± 37.7	1.31 ± 0.09
RH10	38.1 ± 1.0	538.6 ± 38.6	1.31 ± 0.09
Average	45.3	525.4	1.31
Median	39.3	535.2	1.31
Deviation	15.8	28.4	0.00

Method	dV	Slow	Intermediate	Fast	Slow Mach	Fast Mach
MC	87.4 ± 0.9	15.1 ± 0.7	63.1 ± 1.5	78.5 ± 1.7	5.81 ± 0.30	1.11 ± 0.03
VC	138.9 ± 1.0	2.1 ± 0.1	9.0 ± 0.2	79.9 ± 1.6	65.79 ± 3.01	1.74 ± 0.04
MX1	93.7 ± 0.9	14.3 ± 0.7	60.1 ± 1.4	78.6 ± 1.7	6.54 ± 0.33	1.19 ± 0.03
MX2	99.1 ± 0.8	13.8 ± 0.7	58.1 ± 1.3	78.7 ± 1.7	7.17 ± 0.36	1.26 ± 0.03
MX3	109.6 ± 0.8	12.5 ± 0.6	52.7 ± 1.2	79.0 ± 1.7	8.77 ± 0.42	1.39 ± 0.03
RH8	90.7 ± 0.9	14.4 ± 0.7	60.4 ± 1.4	78.6 ± 1.7	6.30 ± 0.32	1.15 ± 0.03
RH9	90.1 ± 0.9	14.7 ± 0.7	61.5 ± 1.4	78.6 ± 1.7	6.15 ± 0.31	1.15 ± 0.03
RH10	89.3 ± 0.9	14.6 ± 0.7	61.1 ± 1.4	78.6 ± 1.7	6.13 ± 0.31	1.14 ± 0.03
Average	99.8	12.7	53.2	78.8	14.1	1.3
Median	93.7	14.4	60.4	78.6	6.5	1.2
Deviation	17.3	4.3	18.2	0.5	20.9	0.2