MIT Space Plasma Group Interplanetary Shock Analysis Pages Database: Wind Shock Analysis Event ID: 20021071101 04/17/2002 107.45946 1101 [UT]

General Information (About, Top)

Year	2002
Fractional day of year	107.459462
Arrival time of shock [seconds of day]	39697.5 ± 3.0
Shock type	FF
Electron data availability	0
X GSE location of spacecraft [Re]	12.795
Y GSE location of spacecraft [Re]	200.559
Z GSE location of spacecraft [Re]	8.022
Upstream plasma points selected for analysis	0007
Upstream field points selected for analysis	0213
Downstream plasma points selected for analysis	0006
Downstream field points selected for analysis	0190
Minimum chisq/dof for RH8,RH9,RH10	7.73, 33.96, 35.13
Event added to database	Mon Feb 14 11:19:07 2005
Event last processed	Sun Mar 13 11:15:36 2005
Method selected	RH08
Propagation delay to Earth [minutes]	10.784 ± 1.598

Asymptotic plasma parameters (About, Top)

Parameter	Upstream	Downstream
Vx GSE [km/s]	-331.0 ± 1.6	-444.5 ± 3.5
Vy GSE [km/s]	-28.4 ± 1.2	-60.3 ± 3.5
Vz GSE [km/s]	-11.2 ± 2.3	43.4 ± 10.5
Wi [km/s]	33.1 ± 0.6	63.8 ± 3.6
We [km/s]	1046.4 ± 19.8	2018.0 ± 115.2
Ni [n/cc]	20.7 ± 0.6	50.3 ± 3.0
Bx GSE [nT]	3.7 ± 0.8	8.7 ± 2.6
By GSE [nT]	-7.5 ± 0.4	-24.7 ± 1.9
Bz GSE [nT]	-2.0 ± 1.1	8.0 ± 5.8
Plasma Beta	0.639 ± 0.645	0.551 ± 0.566
Sound Speed [km/s]	42.72 ± 0.81	82.38 ± 4.70
Alfven Speed [km/s]	41.53 ± 1.88	86.32 ± 5.79

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

Method	Nx	Ny	Nz	Theta [degrees]	Phi [degrees]
MC	-0.503 ± 0.219	0.420 ± 0.245	0.755 ± 0.561	49.05 ± 10.65	140.09 ± 25.95
VC	-0.874 ± 0.033	-0.246 ± 0.028	0.420 ± 0.393	24.81 ± 4.52	195.71 ± 1.75
MX1	-0.896 ± 0.042	0.038 ± 0.099	0.443 ± 0.412	26.31 ± 5.41	177.56 ± 6.35
MX2	-0.933 ± 0.014	-0.052 ± 0.024	0.355 ± 0.339	20.81 ± 2.21	183.19 ± 1.50
MX3	-0.941 ± 0.011	-0.073 ± 0.030	0.330 ± 0.318	19.27 ± 1.86	184.41 ± 1.80
RH08	-0.910 ± 0.005	-0.219 ± 0.013	0.352 ± 0.337	20.61 ± 0.71	193.54 ± 0.84
RH09	-0.988 ± 0.010	0.061 ± 0.069	-0.140 ± 0.139	-8.03 ± 3.92	176.49 ± 4.00
RH10	-0.988 ± 0.011	0.061 ± 0.070	-0.140 ± 0.139	-8.03 ± 4.00	176.49 ± 4.04
Average	-0.879	-0.001	0.297	18.100	178.435
Median	-0.910	0.038	0.355	20.806	183.188
Deviation	0.157	0.208	0.301	18.712	17.167

Key shock parameters (About, Top)

Method	ThetaBn	Shock Speed	Compression
MC	40.6 ± 5.7	295.5 ± 13.3	2.42 ± 0.19
VC	75.0 ± 1.6	514.4 ± 10.1	2.42 ± 0.19
MX1	58.8 ± 1.6	505.1 ± 10.1	2.42 ± 0.19
MX2	64.2 ± 2.0	523.6 ± 9.5	2.42 ± 0.19
MX3	65.4 ± 2.1	527.1 ± 9.3	2.42 ± 0.19
RH08	73.7 ± 1.8	525.3 ± 9.5	2.42 ± 0.19
RH09	63.9 ± 5.9	501.1 ± 9.1	2.42 ± 0.19
RH10	63.9 ± 5.9	501.1 ± 9.1	2.42 ± 0.19
Average	63.2	486.7	2.42
Median	64.2	514.4	2.42
Deviation	10.6	78.0	0.00

Upstream wave speeds and mach numbers (About, Top)

Method	dV	Slow	Intermediate	Fast	Slow Mach	Fast Mach
MC	149.5 ± 1.3	24.9 ± 0.6	31.5 ± 1.4	54.2 ± 1.1	6.02 ± 0.14	2.76 ± 0.06
VC	223.0 ± 1.1	7.8 ± 0.2	10.8 ± 0.5	59.1 ± 1.2	28.68 ± 0.58	3.77 ± 0.07
MX1	214.8 ± 1.2	16.0 ± 0.4	21.5 ± 1.0	57.4 ± 1.2	13.41 ± 0.27	3.74 ± 0.07
MX2	217.2 ± 1.2	13.3 ± 0.3	18.1 ± 0.8	58.1 ± 1.2	16.33 ± 0.32	3.74 ± 0.07
MX3	217.2 ± 1.2	12.6 ± 0.3	17.3 ± 0.8	58.2 ± 1.2	17.18 ± 0.33	3.73 ± 0.07
RH8	221.8 ± 1.1	8.5 ± 0.2	11.7 ± 0.5	59.0 ± 1.2	26.25 ± 0.52	3.76 ± 0.07
RH9	174.1 ± 1.9	13.4 ± 0.3	18.2 ± 0.8	58.1 ± 1.2	12.98 ± 0.22	3.00 ± 0.05
RH10	174.1 ± 1.9	13.4 ± 0.3	18.2 ± 0.8	58.1 ± 1.2	12.98 ± 0.22	3.00 ± 0.05
Average	199.0	13.7	18.4	57.8	16.7	3.4
Median	217.2	13.4	18.2	58.1	16.3	3.7
Deviation	28.5	5.3	6.4	1.6	7.4	0.4

Downstream wave speeds and mach numbers (About, Top)

Method	dV	Slow	Intermediate	Fast	Slow Mach	Fast Mach
MC	64.6 ± 6.5	49.7 ± 2.7	65.5 ± 4.4	108.5 ± 5.8	1.31 ± 0.20	0.60 ± 0.09
VC	93.0 ± 2.1	15.6 ± 0.8	22.4 ± 1.5	118.4 ± 6.3	5.99 ± 0.40	0.79 ± 0.05
MX1	90.1 ± 2.1	32.0 ± 1.7	44.8 ± 3.0	115.0 ± 6.2	2.82 ± 0.20	0.79 ± 0.05
MX2	90.2 ± 1.4	26.6 ± 1.4	37.6 ± 2.5	116.4 ± 6.2	3.40 ± 0.20	0.78 ± 0.04
MX3	90.1 ± 1.3	25.3 ± 1.4	35.9 ± 2.4	116.7 ± 6.2	3.57 ± 0.19	0.77 ± 0.04
RH8	92.3 ± 1.6	16.9 ± 0.9	24.3 ± 1.6	118.2 ± 6.3	5.47 ± 0.32	0.78 ± 0.05
RH9	71.5 ± 4.9	26.8 ± 1.4	37.9 ± 2.5	116.3 ± 6.2	2.66 ± 0.04	0.61 ± 0.01
RH10	71.5 ± 4.9	26.8 ± 1.4	37.9 ± 2.5	116.3 ± 6.2	2.66 ± 0.04	0.61 ± 0.01
Average	82.9	27.5	38.3	115.7	3.5	0.7
Median	90.1	26.8	37.9	116.4	3.4	0.8
Deviation	11.6	10.5	13.3	3.1	1.5	0.1

Survey interval (About, Top)

Key plasma parameters

Velocity

Magnetic Field

Shock Speed (About, Top)

Theta Bn (About, Top)