MIT Space Plasma Group Interplanetary Shock Analysis Pages Database: Wind Shock Analysis Event ID: 20042040945 07/22/2004 204.40650 0945 [UT]

General Information (About, Top)

Year	2004
Fractional day of year	204.406498
Arrival time of shock [seconds of day]	35121.4 ± 90.0
Shock type	FF
Electron data availability	0
X GSE location of spacecraft [Re]	260.668
Y GSE location of spacecraft [Re]	8.874
Z GSE location of spacecraft [Re]	18.980
Upstream plasma points selected for analysis	0007
Upstream field points selected for analysis	0007
Downstream plasma points selected for analysis	0007
Downstream field points selected for analysis	0007
Minimum chisq/dof for RH8,RH9,RH10	9.86, 12.59, 13.18
Event added to database	Sun Mar 13 01:26:33 2005
Event last processed	Sun Mar 13 11:50:42 2005
Method selected	RH08
Propagation delay to Earth [minutes]	57.034 ± 2.951

Asymptotic plasma parameters (About, Top)

Parameter	Upstream	Downstream
Vx GSE [km/s]	-343.9 ± 7.5	-450.5 ± 8.4
Vy GSE [km/s]	6.5 ± 7.6	-65.5 ± 10.2
Vz GSE [km/s]	-24.6 ± 6.0	-81.3 ± 3.2
Wi [km/s]	24.3 ± 2.3	60.5 ± 11.9
We [km/s]	769.3 ± 74.1	1914.2 ± 376.8
Ni [n/cc]	2.6 ± 0.6	10.0 ± 1.0
Bx GSE [nT]	4.4 ± 0.5	2.7 ± 0.7
By GSE [nT]	1.8 ± 0.6	1.0 ± 1.9
Bz GSE [nT]	-0.4 ± 0.2	-10.4 ± 0.4
Plasma Beta	0.143 ± 0.133	0.691 ± 0.682
Sound Speed [km/s]	31.40 ± 3.03	78.15 ± 15.38
Alfven Speed [km/s]	66.97 ± 8.81	75.75 ± 5.75

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

Method	Nx	Ny	Nz	Theta [degrees]	Phi [degrees]
MC	-0.913 ± 0.056	-0.362 ± 0.134	0.189 ± 0.186	10.87 ± 5.77	201.65 ± 8.42
VC	-0.759 ± 0.053	-0.512 ± 0.076	-0.403 ± 0.380	-23.76 ± 3.10	214.00 ± 5.64
MX1	-0.919 ± 0.073	-0.347 ± 0.188	0.189 ± 0.187	10.92 ± 5.68	200.69 ± 11.72
MX2	-0.844 ± 0.057	-0.507 ± 0.091	0.176 ± 0.174	10.11 ± 6.56	210.97 ± 6.15
MX3	-0.816 ± 0.074	-0.551 ± 0.106	0.171 ± 0.170	9.87 ± 7.00	214.03 ± 7.43
RH08	-0.979 ± 0.005	-0.112 ± 0.039	0.173 ± 0.171	9.97 ± 0.62	186.52 ± 2.28
RH09	-0.965 ± 0.018	-0.197 ± 0.071	0.173 ± 0.171	9.97 ± 3.67	191.53 ± 4.21
RH10	-0.970 ± 0.017	-0.180 ± 0.069	0.162 ± 0.161	9.32 ± 3.98	190.53 ± 4.08
Average	-0.896	-0.346	0.104	5.909	201.241
Median	-0.913	-0.347	0.173	9.973	201.654
Deviation	0.081	0.169	0.205	12.001	11.003

Key shock parameters (About, Top)

Method	ThetaBn	Shock Speed	Compression
MC	9.4 ± 5.2	457.1 ± 15.2	4.02 ± 0.78
VC	31.8 ± 4.3	453.8 ± 18.3	4.02 ± 0.78
MX1	9.5 ± 5.4	458.7 ± 15.1	4.02 ± 0.78
MX2	12.3 ± 5.2	435.9 ± 15.9	4.02 ± 0.78
MX3	14.3 ± 5.5	427.3 ± 16.0	4.02 ± 0.78
RH08	16.7 ± 9.2	470.6 ± 14.2	4.02 ± 0.78
RH09	12.4 ± 8.8	470.6 ± 14.6	4.02 ± 0.78
RH10	12.9 ± 9.0	473.0 ± 14.6	4.02 ± 0.78
Average	14.9	455.9	4.02
Median	12.9	458.7	4.02
Deviation	7.2	16.7	0.00

Upstream wave speeds and mach numbers (About, Top)

Method	dV	Slow	Intermediate	Fast	Slow Mach	Fast Mach
MC	150.2 ± 6.3	30.8 ± 2.9	66.1 ± 8.7	67.2 ± 8.7	4.91 ± 0.56	2.26 ± 0.21
VC	186.3 ± 4.4	25.7 ± 2.1	56.9 ± 7.5	69.5 ± 8.1	7.31 ± 0.70	2.71 ± 0.30
MX1	149.7 ± 6.4	30.8 ± 2.9	66.0 ± 8.7	67.3 ± 8.7	4.90 ± 0.56	2.25 ± 0.21
MX2	153.2 ± 5.5	30.5 ± 2.8	65.4 ± 8.6	67.4 ± 8.6	5.07 ± 0.57	2.30 ± 0.23
MX3	154.3 ± 5.3	30.1 ± 2.8	64.9 ± 8.5	67.6 ± 8.6	5.17 ± 0.57	2.31 ± 0.23
RH8	139.1 ± 7.6	29.7 ± 2.7	64.1 ± 8.4	67.8 ± 8.5	4.72 ± 0.53	2.07 ± 0.17
RH9	144.3 ± 7.2	30.4 ± 2.8	65.4 ± 8.6	67.4 ± 8.6	4.78 ± 0.54	2.16 ± 0.19
RH10	144.6 ± 7.2	30.4 ± 2.8	65.3 ± 8.6	67.5 ± 8.6	4.80 ± 0.54	2.16 ± 0.19
Average	152.7	29.8	64.3	67.7	5.2	2.3
Median	150.2	30.4	65.4	67.5	4.9	2.3
Deviation	14.5	1.7	3.0	0.7	0.9	0.2

Downstream wave speeds and mach numbers (About, Top)

Method	dV	Slow	Intermediate	Fast	Slow Mach	Fast Mach
MC	37.5 ± 8.8	66.6 ± 7.9	74.7 ± 5.7	86.7 ± 8.2	0.57 ± 0.15	0.43 ± 0.08
VC	45.6 ± 7.9	51.4 ± 5.2	64.4 ± 4.9	96.7 ± 8.5	0.89 ± 0.15	0.47 ± 0.06
MX1	37.5 ± 8.8	66.6 ± 7.9	74.7 ± 5.7	86.8 ± 8.2	0.57 ± 0.15	0.43 ± 0.08
MX2	36.7 ± 9.1	65.1 ± 7.5	74.0 ± 5.6	88.0 ± 8.2	0.57 ± 0.15	0.41 ± 0.09
MX3	37.3 ± 9.2	63.8 ± 7.2	73.4 ± 5.6	88.9 ± 8.2	0.59 ± 0.16	0.42 ± 0.09
RH8	36.5 ± 8.5	62.3 ± 6.9	72.5 ± 5.5	90.0 ± 8.2	0.59 ± 0.14	0.40 ± 0.08
RH9	37.0 ± 8.6	65.0 ± 7.5	74.0 ± 5.6	88.0 ± 8.2	0.57 ± 0.14	0.42 ± 0.08
RH10	37.3 ± 8.5	64.7 ± 7.4	73.8 ± 5.6	88.2 ± 8.2	0.58 ± 0.14	0.42 ± 0.08
Average	38.2	63.2	72.7	89.2	0.6	0.4
Median	37.3	65.0	74.0	88.2	0.6	0.4
Deviation	3.0	5.0	3.4	3.2	0.1	0.0

Survey interval (About, Top)

Key plasma parameters

Velocity

Magnetic Field

Shock Speed (About, Top)

Theta Bn (About, Top)