MIT Space Plasma Group Interplanetary Shock Analysis Pages Database: Wind Shock Analysis Event ID: 20022301840 08/18/2002 230.77832 1840 [UT]

General Information (About, Top)

Year	2002
Fractional day of year	230.778316
Arrival time of shock [seconds of day]	67246.5 ± 5.0
Shock type	FF
Electron data availability	0
X GSE location of spacecraft [Re]	49.297
Y GSE location of spacecraft [Re]	75.260
Z GSE location of spacecraft [Re]	5.270
Upstream plasma points selected for analysis	0009
Upstream field points selected for analysis	0323
Downstream plasma points selected for analysis	0008
Downstream field points selected for analysis	0269
Minimum chisq/dof for RH8,RH9,RH10	2.56, 15.97, 16.36
Event added to database	Sat Mar 12 23:17:05 2005
Event last processed	Sun Mar 13 11:40:56 2005
Method selected	RH08
Propagation delay to Earth [minutes]	6.450 ± 0.666

Asymptotic plasma parameters (About, Top)

Parameter	Upstream	Downstream
Vx GSE [km/s]	-420.6 ± 8.7	-599.2 ± 20.1
Vy GSE [km/s]	-9.1 ± 4.6	2.6 ± 8.0
Vz GSE [km/s]	8.1 ± 4.0	70.0 ± 23.4
Wi [km/s]	42.5 ± 1.5	87.8 ± 9.2
We [km/s]	1342.4 ± 48.1	2775.0 ± 291.4
Ni [n/cc]	3.9 ± 0.4	13.3 ± 1.6
Bx GSE [nT]	-2.1 ± 0.6	-2.9 ± 1.3
By GSE [nT]	1.9 ± 0.6	8.8 ± 2.3
Bz GSE [nT]	1.0 ± 0.5	-3.4 ± 3.7
Plasma Beta	1.587 ± 1.649	2.116 ± 1.928
Sound Speed [km/s]	54.80 ± 1.96	113.29 ± 11.90
Alfven Speed [km/s]	34.69 ± 4.97	64.43 ± 11.53

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

Method	Nx	Ny	Nz	Theta [degrees]	Phi [degrees]
MC	-0.758 ± 0.181	0.406 ± 0.269	0.511 ± 0.461	30.71 ± 14.43	151.81 ± 19.84
VC	-0.941 ± 0.046	0.063 ± 0.044	0.332 ± 0.319	19.39 ± 7.96	176.18 ± 2.69
MX1	-0.967 ± 0.069	0.093 ± 0.460	0.239 ± 0.234	13.82 ± 12.83	174.48 ± 27.28
MX2	-0.953 ± 0.020	0.078 ± 0.150	0.291 ± 0.283	16.94 ± 3.12	175.29 ± 8.99
MX3	-0.952 ± 0.024	0.079 ± 0.120	0.296 ± 0.287	17.21 ± 4.14	175.27 ± 7.23
RH08	-0.957 ± 0.005	0.059 ± 0.013	0.285 ± 0.277	16.55 ± 0.97	176.49 ± 0.79
RH09	-0.997 ± 0.005	0.026 ± 0.069	-0.073 ± 0.072	-4.16 ± 4.03	178.50 ± 3.95
RH10	-0.996 ± 0.006	0.026 ± 0.069	-0.084 ± 0.084	-4.81 ± 4.02	178.50 ± 3.99
Average	-0.940	0.104	0.225	13.206	173.315
Median	-0.953	0.078	0.291	16.942	176.184
Deviation	0.076	0.125	0.204	12.025	8.811

Key shock parameters (About, Top)

Method	ThetaBn	Shock Speed	Compression
MC	22.4 ± 8.3	563.3 ± 13.7	3.52 ± 0.32
VC	38.3 ± 12.1	666.7 ± 17.7	3.52 ± 0.32
MX1	37.3 ± 13.4	675.5 ± 19.6	3.52 ± 0.32
MX2	37.7 ± 12.6	671.6 ± 18.5	3.52 ± 0.32
MX3	37.6 ± 12.6	671.1 ± 18.4	3.52 ± 0.32
RH08	38.8 ± 12.8	673.4 ± 18.6	3.52 ± 0.32
RH09	47.3 ± 15.3	671.3 ± 26.8	3.52 ± 0.32
RH10	47.6 ± 15.3	670.0 ± 27.0	3.52 ± 0.32
Average	38.4	657.9	3.52
Median	38.3	671.3	3.52
Deviation	7.8	38.3	0.00

Upstream wave speeds and mach numbers (About, Top)

Method	dV	Slow	Intermediate	Fast	Slow Mach	Fast Mach
MC	244.2 ± 7.1	30.6 ± 3.8	32.1 ± 4.6	57.2 ± 1.8	8.07 ± 0.92	4.27 ± 0.20
VC	268.8 ± 8.9	24.7 ± 2.8	27.2 ± 3.9	60.1 ± 2.1	10.97 ± 1.14	4.48 ± 0.21
MX1	268.0 ± 8.8	25.1 ± 2.8	27.6 ± 4.0	59.9 ± 2.1	10.76 ± 1.12	4.48 ± 0.21
MX2	269.0 ± 8.8	25.0 ± 2.8	27.5 ± 3.9	60.0 ± 2.1	10.87 ± 1.13	4.49 ± 0.21
MX3	269.1 ± 8.8	25.0 ± 2.8	27.5 ± 3.9	60.0 ± 2.1	10.86 ± 1.13	4.49 ± 0.21
RH8	269.3 ± 8.9	24.5 ± 2.7	27.0 ± 3.9	60.2 ± 2.1	11.08 ± 1.15	4.48 ± 0.21
RH9	252.8 ± 8.4	20.9 ± 2.2	23.5 ± 3.4	61.5 ± 2.3	12.22 ± 1.22	4.11 ± 0.19
RH10	252.0 ± 8.4	20.7 ± 2.2	23.4 ± 3.4	61.6 ± 2.3	12.27 ± 1.22	4.10 ± 0.19
Average	261.7	24.6	27.0	60.1	10.9	4.4
Median	268.8	25.0	27.5	60.1	11.0	4.5
Deviation	10.2	3.1	2.7	1.3	1.3	0.2

Downstream wave speeds and mach numbers (About, Top)

Method	dV	Slow	Intermediate	Fast	Slow Mach	Fast Mach
MC	72.5 ± 10.3	57.3 ± 8.9	59.6 ± 10.7	117.3 ± 11.0	1.28 ± 0.22	0.62 ± 0.11
VC	79.4 ± 14.2	46.6 ± 6.4	50.6 ± 9.0	122.2 ± 10.4	1.72 ± 0.34	0.66 ± 0.14
MX1	79.4 ± 15.8	47.3 ± 6.6	51.2 ± 9.2	121.9 ± 10.4	1.70 ± 0.37	0.66 ± 0.15
MX2	79.8 ± 14.9	47.1 ± 6.5	51.0 ± 9.1	122.0 ± 10.4	1.71 ± 0.35	0.66 ± 0.14
MX3	79.8 ± 14.8	47.1 ± 6.5	51.0 ± 9.1	122.0 ± 10.4	1.71 ± 0.35	0.66 ± 0.14
RH8	80.1 ± 15.0	46.2 ± 6.4	50.2 ± 9.0	122.3 ± 10.3	1.75 ± 0.36	0.66 ± 0.14
RH9	79.0 ± 21.4	39.4 ± 5.2	43.7 ± 7.8	124.7 ± 10.1	2.02 ± 0.57	0.64 ± 0.19
RH10	79.0 ± 21.6	39.1 ± 5.1	43.4 ± 7.8	124.8 ± 10.1	2.03 ± 0.58	0.64 ± 0.19
Average	78.6	46.3	50.1	122.2	1.7	0.6
Median	79.4	47.1	51.0	122.2	1.7	0.7
Deviation	2.5	5.6	5.0	2.3	0.2	0.0

Survey interval (About, Top)

Key plasma parameters

Velocity

Magnetic Field

Shock Speed (About, Top)

Theta Bn (About, Top)