MIT Space Plasma Group Interplanetary Shock Analysis Pages Database: Wind Shock Analysis Event ID: 20010781133 03/19/2001 78.48158 1133 [UT]

General Information (About, Top)

Year	2001
Fractional day of year	78.481580
Arrival time of shock [seconds of day]	41608.5 ± 3.0
Shock type	FF
Electron data availability	0
X GSE location of spacecraft [Re]	-17.134
Y GSE location of spacecraft [Re]	-202.812
Z GSE location of spacecraft [Re]	6.492
Upstream plasma points selected for analysis	0009
Upstream field points selected for analysis	0294
Downstream plasma points selected for analysis	0010
Downstream field points selected for analysis	0302
Minimum chisq/dof for RH8,RH9,RH10	10.05, 26.10, 27.21
Event added to database	Mon Feb 14 11:12:52 2005
Event last processed	Sun Mar 13 11:03:32 2005
Method selected	RH08
Propagation delay to Earth [minutes]	-9.348 ± 0.900

Asymptotic plasma parameters (About, Top)

Parameter	Upstream	Downstream
Vx GSE [km/s]	-312.9 ± 2.2	-368.4 ± 2.2
Vy GSE [km/s]	-8.1 ± 2.2	-26.6 ± 4.1
Vz GSE [km/s]	12.7 ± 4.7	21.3 ± 5.1
Wi [km/s]	31.8 ± 1.2	34.1 ± 1.1
We [km/s]	1005.9 ± 36.6	1077.4 ± 33.3
Ni [n/cc]	10.8 ± 0.7	17.4 ± 1.3
Bx GSE [nT]	4.1 ± 0.4	7.7 ± 0.7
By GSE [nT]	-5.2 ± 0.6	-9.9 ± 1.5
Bz GSE [nT]	4.0 ± 1.0	9.6 ± 2.5
Plasma Beta	0.382 ± 0.384	0.168 ± 0.166
Sound Speed [km/s]	41.07 ± 1.49	43.98 ± 1.36
Alfven Speed [km/s]	51.72 ± 3.33	83.95 ± 6.21

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

Method	Nx	Ny	Nz	Theta [degrees]	Phi [degrees]
MC	-0.936 ± 0.309	0.323 ± 0.858	0.140 ± 0.139	8.06 ± 38.38	160.96 ± 52.52
VC	-0.938 ± 0.029	-0.313 ± 0.073	0.147 ± 0.146	8.45 ± 6.57	198.48 ± 4.47
MX1	-0.893 ± 0.051	-0.403 ± 0.105	0.198 ± 0.196	11.43 ± 6.27	204.29 ± 6.72
MX2	-0.901 ± 0.043	-0.377 ± 0.088	0.214 ± 0.210	12.34 ± 6.58	202.69 ± 5.53
MX3	-0.906 ± 0.042	-0.360 ± 0.085	0.223 ± 0.220	12.91 ± 6.85	201.67 ± 5.34
RH08	-0.993 ± 0.000	-0.113 ± 0.000	0.039 ± 0.039	2.24 ± 0.64	186.52 ± 0.00
RH09	-0.801 ± 0.042	-0.316 ± 0.067	0.508 ± 0.459	30.56 ± 4.02	201.56 ± 4.69
RH10	-0.824 ± 0.040	-0.309 ± 0.066	0.475 ± 0.435	28.35 ± 4.06	200.56 ± 4.51
Average	-0.899	-0.234	0.243	14.293	194.590
Median	-0.901	-0.313	0.214	12.340	201.560
Deviation	0.062	0.242	0.164	9.958	14.663

Key shock parameters (About, Top)

Method	ThetaBn	Shock Speed	Compression
MC	50.5 ± 2.1	415.1 ± 38.4	1.64 ± 0.16
VC	78.0 ± 2.9	451.4 ± 40.5	1.64 ± 0.16
MX1	84.4 ± 3.0	438.2 ± 39.0	1.64 ± 0.16
MX2	83.5 ± 2.8	441.0 ± 39.3	1.64 ± 0.16
MX3	83.0 ± 2.7	442.3 ± 39.4	1.64 ± 0.16
RH08	64.8 ± 2.7	460.1 ± 41.9	1.64 ± 0.16
RH09	87.2 ± 1.3	402.5 ± 35.7	1.64 ± 0.16
RH10	89.1 ± 1.3	411.1 ± 36.6	1.64 ± 0.16
Average	77.6	432.7	1.64
Median	83.5	441.0	1.64
Deviation	13.3	20.7	0.00

Upstream wave speeds and mach numbers (About, Top)

Method	dV	Slow	Intermediate	Fast	Slow Mach	Fast Mach
MC	123.0 ± 1.8	21.6 ± 0.7	32.9 ± 2.1	62.4 ± 2.8	5.69 ± 0.23	1.97 ± 0.11
VC	153.4 ± 1.7	6.7 ± 0.2	10.8 ± 0.7	65.7 ± 2.9	22.87 ± 0.94	2.34 ± 0.12
MX1	152.9 ± 1.6	3.2 ± 0.1	5.1 ± 0.3	66.0 ± 2.9	48.37 ± 1.97	2.32 ± 0.11
MX2	153.2 ± 1.6	3.6 ± 0.1	5.8 ± 0.4	66.0 ± 2.9	42.41 ± 1.72	2.33 ± 0.11
MX3	153.1 ± 1.5	3.9 ± 0.1	6.3 ± 0.4	66.0 ± 2.9	39.31 ± 1.59	2.33 ± 0.11
RH8	148.0 ± 2.1	14.0 ± 0.5	22.0 ± 1.4	64.6 ± 2.8	10.60 ± 0.44	2.30 ± 0.12
RH9	142.8 ± 1.6	1.6 ± 0.1	2.6 ± 0.2	66.1 ± 2.9	90.15 ± 3.56	2.17 ± 0.10
RH10	144.6 ± 1.5	0.5 ± 0.0	0.8 ± 0.1	66.1 ± 2.9	295.33 ± 11.65	2.19 ± 0.10
Average	146.4	6.9	10.8	65.4	69.3	2.2
Median	152.9	3.9	6.3	66.0	42.4	2.3
Deviation	10.3	7.3	11.1	1.3	95.0	0.1

Downstream wave speeds and mach numbers (About, Top)

Method	dV	Slow	Intermediate	Fast	Slow Mach	Fast Mach
MC	75.9 ± 3.1	25.7 ± 0.6	53.4 ± 4.0	91.3 ± 5.4	2.95 ± 0.15	0.84 ± 0.08
VC	94.4 ± 1.7	8.1 ± 0.2	17.5 ± 1.3	94.5 ± 5.2	11.63 ± 0.36	1.00 ± 0.06
MX1	94.2 ± 1.6	3.8 ± 0.1	8.3 ± 0.6	94.8 ± 5.2	24.60 ± 0.71	1.00 ± 0.06
MX2	94.4 ± 1.6	4.4 ± 0.1	9.4 ± 0.7	94.7 ± 5.2	21.59 ± 0.63	1.00 ± 0.06
MX3	94.3 ± 1.6	4.7 ± 0.1	10.2 ± 0.8	94.7 ± 5.2	19.99 ± 0.58	1.00 ± 0.06
RH8	90.5 ± 1.9	16.8 ± 0.4	35.7 ± 2.6	93.3 ± 5.2	5.39 ± 0.20	0.97 ± 0.07
RH9	88.2 ± 2.3	1.9 ± 0.0	4.1 ± 0.3	94.8 ± 5.2	45.94 ± 1.39	0.93 ± 0.07
RH10	89.2 ± 2.2	0.6 ± 0.0	1.3 ± 0.1	94.8 ± 5.2	150.22 ± 4.50	0.94 ± 0.07
Average	90.1	8.3	17.5	94.1	35.3	1.0
Median	94.2	4.7	10.2	94.7	21.6	1.0
Deviation	6.3	8.7	18.0	1.3	48.3	0.1

Survey interval (About, Top)

Key plasma parameters

Velocity

Magnetic Field

Shock Speed (About, Top)

Theta Bn (About, Top)