MIT Space Plasma Group Interplanetary Shock Analysis Pages Database: Wind Shock Analysis Event ID: 20021311030 05/11/2002 131.43783 1030 [UT]

General Information (About, Top)

Year	2002
Fractional day of year	131.437830
Arrival time of shock [seconds of day]	37828.5 ± 5.0
Shock type	FF
Electron data availability	0
X GSE location of spacecraft [Re]	2.356
Y GSE location of spacecraft [Re]	303.041
Z GSE location of spacecraft [Re]	19.850
Upstream plasma points selected for analysis	0007
Upstream field points selected for analysis	0227
Downstream plasma points selected for analysis	0007
Downstream field points selected for analysis	0249
Minimum chisq/dof for RH8,RH9,RH10	2.39, 3.79, 3.85
Event added to database	Mon Feb 14 11:19:17 2005
Event last processed	Sun Mar 13 11:16:34 2005
Method selected	RH08
Propagation delay to Earth [minutes]	-2.292 ± 1.169

Asymptotic plasma parameters (About, Top)

Parameter	Upstream	Downstream
Vx GSE [km/s]	-333.5 ± 3.2	-423.1 ± 3.9
Vy GSE [km/s]	-3.0 ± 6.6	-27.3 ± 6.7
Vz GSE [km/s]	-28.6 ± 1.5	-52.2 ± 4.0
Wi [km/s]	26.4 ± 1.1	48.9 ± 4.4
We [km/s]	834.5 ± 33.2	1546.2 ± 140.4
Ni [n/cc]	10.0 ± 0.4	26.7 ± 3.6
Bx GSE [nT]	5.6 ± 1.1	5.6 ± 1.3
By GSE [nT]	-0.4 ± 2.2	-8.9 ± 3.9
Bz GSE [nT]	-2.5 ± 0.8	-13.6 ± 3.6
Plasma Beta	0.341 ± 0.341	0.433 ± 0.418
Sound Speed [km/s]	34.07 ± 1.36	63.12 ± 5.73
Alfven Speed [km/s]	45.26 ± 2.35	75.78 ± 6.05

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

Method	Nx	Ny	Nz	Theta [degrees]	Phi [degrees]
MC	-0.993 ± 0.027	-0.021 ± 0.310	0.115 ± 0.114	6.60 ± 13.15	181.24 ± 17.89
VC	-0.936 ± 0.024	-0.250 ± 0.082	-0.246 ± 0.241	-14.25 ± 2.56	194.97 ± 4.99
MX1	-0.982 ± 0.034	-0.140 ± 0.102	0.126 ± 0.125	7.22 ± 14.40	188.11 ± 5.93
MX2	-0.998 ± 0.008	-0.060 ± 0.129	-0.004 ± 0.004	-0.22 ± 6.81	183.46 ± 7.42
MX3	-0.998 ± 0.008	-0.049 ± 0.145	-0.026 ± 0.026	-1.52 ± 6.94	182.81 ± 8.31
RH08	-0.999 ± 0.001	0.044 ± 0.018	-0.028 ± 0.028	-1.60 ± 0.86	177.49 ± 1.02
RH09	-0.991 ± 0.009	0.131 ± 0.068	0.006 ± 0.006	0.32 ± 4.05	172.48 ± 3.94
RH10	-0.991 ± 0.009	0.131 ± 0.068	0.006 ± 0.006	0.32 ± 4.05	172.48 ± 3.94
Average	-0.986	-0.027	-0.007	-0.391	181.631
Median	-0.991	-0.021	0.006	0.320	182.811
Deviation	0.021	0.130	0.114	6.574	7.649

Key shock parameters (About, Top)

Method	ThetaBn	Shock Speed	Compression
MC	25.4 ± 14.3	470.6 ± 16.8	2.68 ± 0.42
VC	45.1 ± 18.6	476.9 ± 17.0	2.68 ± 0.42
MX1	25.1 ± 18.7	470.0 ± 16.8	2.68 ± 0.42
MX2	30.5 ± 15.4	482.8 ± 17.2	2.68 ± 0.42
MX3	31.6 ± 14.9	483.8 ± 17.3	2.68 ± 0.42
RH08	31.8 ± 11.9	479.2 ± 17.3	2.68 ± 0.42
RH09	31.0 ± 9.0	469.1 ± 17.0	2.68 ± 0.42
RH10	31.0 ± 9.0	469.1 ± 17.0	2.68 ± 0.42
Average	31.5	475.2	2.68
Median	31.0	476.9	2.68
Deviation	6.1	6.3	0.00

Upstream wave speeds and mach numbers (About, Top)

Method	dV	Slow	Intermediate	Fast	Slow Mach	Fast Mach
MC	142.6 ± 3.2	28.4 ± 1.1	40.9 ± 2.1	49.0 ± 2.3	5.03 ± 0.24	2.91 ± 0.16
VC	156.8 ± 4.2	20.6 ± 0.8	32.0 ± 1.7	52.8 ± 2.3	7.61 ± 0.36	2.98 ± 0.15
MX1	145.6 ± 3.7	28.5 ± 1.1	41.0 ± 2.1	49.0 ± 2.3	5.11 ± 0.24	2.98 ± 0.15
MX2	149.6 ± 3.4	26.5 ± 1.0	39.0 ± 2.0	50.1 ± 2.3	5.65 ± 0.26	2.99 ± 0.16
MX3	149.9 ± 3.4	26.1 ± 1.0	38.6 ± 2.0	50.3 ± 2.3	5.75 ± 0.27	2.99 ± 0.16
RH8	145.5 ± 3.1	26.0 ± 1.0	38.5 ± 2.0	50.3 ± 2.3	5.60 ± 0.27	2.90 ± 0.16
RH9	139.0 ± 2.9	26.3 ± 1.0	38.8 ± 2.0	50.2 ± 2.3	5.29 ± 0.26	2.78 ± 0.15
RH10	139.0 ± 2.9	26.3 ± 1.0	38.8 ± 2.0	50.2 ± 2.3	5.29 ± 0.26	2.78 ± 0.15
Average	146.0	26.1	38.4	50.2	5.7	2.9
Median	145.6	26.3	38.8	50.2	5.6	3.0
Deviation	6.0	2.4	2.8	1.2	0.8	0.1

Downstream wave speeds and mach numbers (About, Top)

Method	dV	Slow	Intermediate	Fast	Slow Mach	Fast Mach
MC	55.8 ± 4.1	50.7 ± 2.8	68.4 ± 5.5	84.8 ± 3.7	1.11 ± 0.13	0.66 ± 0.07
VC	61.1 ± 4.2	36.6 ± 1.8	53.5 ± 4.3	91.8 ± 3.7	1.68 ± 0.18	0.67 ± 0.07
MX1	57.2 ± 4.5	50.9 ± 2.8	68.6 ± 5.5	84.7 ± 3.7	1.13 ± 0.14	0.68 ± 0.08
MX2	58.6 ± 4.1	47.2 ± 2.5	65.3 ± 5.2	86.8 ± 3.6	1.25 ± 0.14	0.68 ± 0.07
MX3	58.7 ± 4.0	46.5 ± 2.5	64.5 ± 5.2	87.2 ± 3.6	1.27 ± 0.14	0.68 ± 0.07
RH8	56.5 ± 3.8	46.4 ± 2.5	64.4 ± 5.1	87.3 ± 3.6	1.22 ± 0.13	0.65 ± 0.07
RH9	53.5 ± 3.7	46.9 ± 2.5	64.9 ± 5.2	87.0 ± 3.6	1.15 ± 0.12	0.62 ± 0.07
RH10	53.5 ± 3.7	46.9 ± 2.5	64.9 ± 5.2	87.0 ± 3.6	1.15 ± 0.12	0.62 ± 0.07
Average	56.9	46.5	64.3	87.1	1.2	0.7
Median	57.2	46.9	64.9	87.0	1.2	0.7
Deviation	2.6	4.4	4.7	2.2	0.2	0.0

Survey interval (About, Top)

Key plasma parameters

Velocity

Magnetic Field

Shock Speed (About, Top)

Theta Bn (About, Top)