MIT/CSR Interplanetary Shocks

MIT Space Plasma Group
Interplanetary Shock Analysis Pages

Database: Wind Shock Analysis
Event ID: 19973260912
11/22/1997 326.38394 0912 [UT]

Site	Data tables	Selection	Normals	Parameters
Previous event Next event Yearly list Main page Help	General information Asymptotic parameters Shock front normals Key parameters Wave speed and Mach numbers	Survey Selected	Simple methods Rankine Individual equations	Shock speed Theta Bn Mach numbers

General Information (About, Top)

Year 1997

Fractional day of year 326.383941

Arrival time of shock [seconds of day] 33172.5 ± 60.0

Shock type FF

Electron data availability 0

X GSE location of spacecraft [Re] 180.902

Y GSE location of spacecraft [Re] -17.499

Z GSE location of spacecraft [Re] 27.800

Upstream plasma points selected for analysis 0012

Upstream field points selected for analysis 0380

Downstream plasma points selected for analysis 0011

Downstream field points selected for analysis 0368

Minimum chisq/dof for RH8,RH9,RH10 3.02, 6.97, 7.07

Event added to database
Mon Feb 14 11:05:27 2005

Event last processed
Sun Mar 13 10:45:39 2005

Method selected
RH08

Propagation delay to Earth [minutes]
37.435 ± 0.871

Asymptotic plasma parameters (About, Top)

Parameter Upstream Downstream

Vx GSE [km/s] -346.3 ± 1.7 -438.2 ± 6.8

Vy GSE [km/s] -1.5 ± 2.1 -23.8 ± 9.5

Vz GSE [km/s] -29.4 ± 3.4 -13.9 ± 11.1

Wi [km/s] 41.2 ± 1.0 70.3 ± 5.3

We [km/s] 1304.1 ± 31.7 2222.7 ± 168.2

Ni [n/cc] 11.6 ± 0.4 29.1 ± 1.7

Bx GSE [nT] -1.4 ± 0.3 -5.0 ± 2.7

By GSE [nT] 5.1 ± 0.5 11.9 ± 2.7

Bz GSE [nT] 1.1 ± 1.1 -2.4 ± 5.1

Plasma Beta
1.357 ± 1.368
1.595 ± 1.353

Sound Speed [km/s]
53.24 ± 1.30
90.74 ± 6.87

Alfven Speed [km/s]
35.61 ± 2.10
58.16 ± 8.12

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

Method Nx Ny Nz Theta [degrees] Phi [degrees]

MC -0.997 ± 0.078 -0.070 ± 1.066 -0.029 ± 0.029 -1.66 ± 42.83 184.04 ± 61.23

VC -0.958 ± 0.031 -0.237 ± 0.103 0.158 ± 0.157 9.12 ± 6.52 193.89 ± 6.13

MX1 -0.925 ± 0.165 -0.361 ± 0.420 0.114 ± 0.114 6.56 ± 9.33 201.34 ± 26.03

MX2 -0.926 ± 0.121 -0.347 ± 0.320 0.147 ± 0.146 8.45 ± 8.04 200.52 ± 19.80

MX3 -0.926 ± 0.117 -0.343 ± 0.310 0.155 ± 0.154 8.91 ± 8.67 200.32 ± 19.19

RH08 -0.992 ± 0.001 -0.113 ± 0.010 0.061 ± 0.061 3.52 ± 0.57 186.52 ± 0.55

RH09 -0.997 ± 0.005 -0.061 ± 0.068 -0.050 ± 0.050 -2.88 ± 4.06 183.51 ± 3.91

RH10 -0.996 ± 0.006 -0.061 ± 0.069 -0.061 ± 0.061 -3.52 ± 4.03 183.51 ± 3.95

Average -0.965 -0.199 0.062 3.562 191.707

Median -0.958 -0.113 0.114 6.557 193.890

Deviation 0.034 0.137 0.096 5.495 8.190

Key shock parameters (About, Top)

Method ThetaBn Shock Speed Compression

MC 79.4 ± 4.0 502.3 ± 10.1 2.51 ± 0.20

VC 86.8 ± 3.6 489.6 ± 9.6 2.51 ± 0.20

MX1 85.6 ± 3.7 477.5 ± 9.0 2.51 ± 0.20

MX2 86.8 ± 3.7 477.8 ± 9.1 2.51 ± 0.20

MX3 87.0 ± 3.7 477.9 ± 9.2 2.51 ± 0.20

RH08 80.8 ± 3.5 501.4 ± 10.0 2.51 ± 0.20

RH09 79.2 ± 4.1 501.6 ± 10.1 2.51 ± 0.20

RH10 79.3 ± 4.2 501.1 ± 10.1 2.51 ± 0.20

Average 83.1 491.2 2.51

Median 85.6 501.1 2.51

Deviation 3.7 11.8 0.00

Upstream wave speeds and mach numbers (About, Top)

Method dV Slow Intermediate Fast Slow
Mach
Fast
Mach

MC 156.1 ± 1.7 5.4 ± 0.2 6.5 ± 0.4 63.9 ± 1.2 28.78 ± 1.10 2.45 ± 0.05

VC 162.0 ± 2.0 1.6 ± 0.1 2.0 ± 0.1 64.1 ± 1.2 98.85 ± 3.84 2.53 ± 0.05

MX1 159.9 ± 2.0 2.3 ± 0.1 2.7 ± 0.2 64.0 ± 1.2 70.58 ± 2.82 2.50 ± 0.05

MX2 160.9 ± 2.1 1.7 ± 0.1 2.0 ± 0.1 64.1 ± 1.2 96.41 ± 3.84 2.51 ± 0.05

MX3 161.1 ± 2.1 1.5 ± 0.1 1.8 ± 0.1 64.1 ± 1.2 105.83 ± 4.21 2.52 ± 0.05

RH8 159.7 ± 1.8 4.7 ± 0.2 5.7 ± 0.3 63.9 ± 1.2 33.80 ± 1.29 2.50 ± 0.05

RH9 154.8 ± 1.7 5.6 ± 0.2 6.7 ± 0.4 63.8 ± 1.2 27.85 ± 1.06 2.43 ± 0.05

RH10 154.2 ± 1.7 5.5 ± 0.2 6.6 ± 0.4 63.9 ± 1.2 28.09 ± 1.07 2.42 ± 0.05

Average 158.6 3.5 4.3 64.0 61.3 2.5

Median 159.9 4.7 5.7 64.0 70.6 2.5

Deviation 3.1 1.9 2.3 0.1 35.4 0.0

Downstream wave speeds and mach numbers (About, Top)

Method dV Slow Intermediate Fast Slow
Mach
Fast
Mach

MC 63.3 ± 6.2 8.9 ± 0.8 10.7 ± 1.5 107.8 ± 5.1 7.17 ± 1.01 0.59 ± 0.04

VC 66.2 ± 5.5 2.7 ± 0.3 3.2 ± 0.5 108.1 ± 5.1 24.81 ± 3.48 0.61 ± 0.04

MX1 65.0 ± 4.3 3.7 ± 0.3 4.5 ± 0.6 108.1 ± 5.1 17.64 ± 2.34 0.60 ± 0.03

MX2 65.7 ± 4.5 2.7 ± 0.3 3.3 ± 0.5 108.1 ± 5.1 24.20 ± 3.26 0.61 ± 0.03

MX3 65.9 ± 4.6 2.5 ± 0.2 3.0 ± 0.4 108.1 ± 5.1 26.61 ± 3.60 0.61 ± 0.03

RH8 65.0 ± 6.1 7.8 ± 0.7 9.3 ± 1.3 107.9 ± 5.1 8.46 ± 1.20 0.60 ± 0.04

RH9 62.6 ± 6.2 9.1 ± 0.9 10.9 ± 1.5 107.8 ± 5.1 6.91 ± 0.98 0.58 ± 0.04

RH10 62.3 ± 6.2 9.0 ± 0.8 10.8 ± 1.5 107.8 ± 5.1 6.96 ± 0.98 0.58 ± 0.04

Average 64.5 5.8 6.9 107.9 15.3 0.6

Median 65.0 7.8 9.3 108.1 17.6 0.6

Deviation 1.5 3.1 3.8 0.2 8.9 0.0

Survey interval (About, Top)

Selected data (About, Top)

Key plasma parameters

Velocity

Magnetic Field

Simple Methods (About, Top)

Rankine Chi^2 Contour (About, Top)

Conservation of Individual Rankine-Hugoniot Equations (About, Top)

Shock Speed (About, Top)

Theta Bn (About, Top)

Mach Numbers (About, Top)

Page updated Sun Mar 13 12:08:18 2005
Justin C Kasper (jck@mit.edu)

Year	1997
Fractional day of year	326.383941
Arrival time of shock [seconds of day]	33172.5 ± 60.0
Shock type	FF
Electron data availability	0
X GSE location of spacecraft [Re]	180.902
Y GSE location of spacecraft [Re]	-17.499
Z GSE location of spacecraft [Re]	27.800
Upstream plasma points selected for analysis	0012
Upstream field points selected for analysis	0380
Downstream plasma points selected for analysis	0011
Downstream field points selected for analysis	0368
Minimum chisq/dof for RH8,RH9,RH10	3.02, 6.97, 7.07
Event added to database	Mon Feb 14 11:05:27 2005
Event last processed	Sun Mar 13 10:45:39 2005
Method selected	RH08
Propagation delay to Earth [minutes]	37.435 ± 0.871

Parameter	Upstream	Downstream
Vx GSE [km/s]	-346.3 ± 1.7	-438.2 ± 6.8
Vy GSE [km/s]	-1.5 ± 2.1	-23.8 ± 9.5
Vz GSE [km/s]	-29.4 ± 3.4	-13.9 ± 11.1
Wi [km/s]	41.2 ± 1.0	70.3 ± 5.3
We [km/s]	1304.1 ± 31.7	2222.7 ± 168.2
Ni [n/cc]	11.6 ± 0.4	29.1 ± 1.7
Bx GSE [nT]	-1.4 ± 0.3	-5.0 ± 2.7
By GSE [nT]	5.1 ± 0.5	11.9 ± 2.7
Bz GSE [nT]	1.1 ± 1.1	-2.4 ± 5.1
Plasma Beta	1.357 ± 1.368	1.595 ± 1.353
Sound Speed [km/s]	53.24 ± 1.30	90.74 ± 6.87
Alfven Speed [km/s]	35.61 ± 2.10	58.16 ± 8.12

Method	Nx	Ny	Nz	Theta [degrees]	Phi [degrees]
MC	-0.997 ± 0.078	-0.070 ± 1.066	-0.029 ± 0.029	-1.66 ± 42.83	184.04 ± 61.23
VC	-0.958 ± 0.031	-0.237 ± 0.103	0.158 ± 0.157	9.12 ± 6.52	193.89 ± 6.13
MX1	-0.925 ± 0.165	-0.361 ± 0.420	0.114 ± 0.114	6.56 ± 9.33	201.34 ± 26.03
MX2	-0.926 ± 0.121	-0.347 ± 0.320	0.147 ± 0.146	8.45 ± 8.04	200.52 ± 19.80
MX3	-0.926 ± 0.117	-0.343 ± 0.310	0.155 ± 0.154	8.91 ± 8.67	200.32 ± 19.19
RH08	-0.992 ± 0.001	-0.113 ± 0.010	0.061 ± 0.061	3.52 ± 0.57	186.52 ± 0.55
RH09	-0.997 ± 0.005	-0.061 ± 0.068	-0.050 ± 0.050	-2.88 ± 4.06	183.51 ± 3.91
RH10	-0.996 ± 0.006	-0.061 ± 0.069	-0.061 ± 0.061	-3.52 ± 4.03	183.51 ± 3.95
Average	-0.965	-0.199	0.062	3.562	191.707
Median	-0.958	-0.113	0.114	6.557	193.890
Deviation	0.034	0.137	0.096	5.495	8.190

Method	ThetaBn	Shock Speed	Compression
MC	79.4 ± 4.0	502.3 ± 10.1	2.51 ± 0.20
VC	86.8 ± 3.6	489.6 ± 9.6	2.51 ± 0.20
MX1	85.6 ± 3.7	477.5 ± 9.0	2.51 ± 0.20
MX2	86.8 ± 3.7	477.8 ± 9.1	2.51 ± 0.20
MX3	87.0 ± 3.7	477.9 ± 9.2	2.51 ± 0.20
RH08	80.8 ± 3.5	501.4 ± 10.0	2.51 ± 0.20
RH09	79.2 ± 4.1	501.6 ± 10.1	2.51 ± 0.20
RH10	79.3 ± 4.2	501.1 ± 10.1	2.51 ± 0.20
Average	83.1	491.2	2.51
Median	85.6	501.1	2.51
Deviation	3.7	11.8	0.00

Method	dV	Slow	Intermediate	Fast	Slow Mach	Fast Mach
MC	156.1 ± 1.7	5.4 ± 0.2	6.5 ± 0.4	63.9 ± 1.2	28.78 ± 1.10	2.45 ± 0.05
VC	162.0 ± 2.0	1.6 ± 0.1	2.0 ± 0.1	64.1 ± 1.2	98.85 ± 3.84	2.53 ± 0.05
MX1	159.9 ± 2.0	2.3 ± 0.1	2.7 ± 0.2	64.0 ± 1.2	70.58 ± 2.82	2.50 ± 0.05
MX2	160.9 ± 2.1	1.7 ± 0.1	2.0 ± 0.1	64.1 ± 1.2	96.41 ± 3.84	2.51 ± 0.05
MX3	161.1 ± 2.1	1.5 ± 0.1	1.8 ± 0.1	64.1 ± 1.2	105.83 ± 4.21	2.52 ± 0.05
RH8	159.7 ± 1.8	4.7 ± 0.2	5.7 ± 0.3	63.9 ± 1.2	33.80 ± 1.29	2.50 ± 0.05
RH9	154.8 ± 1.7	5.6 ± 0.2	6.7 ± 0.4	63.8 ± 1.2	27.85 ± 1.06	2.43 ± 0.05
RH10	154.2 ± 1.7	5.5 ± 0.2	6.6 ± 0.4	63.9 ± 1.2	28.09 ± 1.07	2.42 ± 0.05
Average	158.6	3.5	4.3	64.0	61.3	2.5
Median	159.9	4.7	5.7	64.0	70.6	2.5
Deviation	3.1	1.9	2.3	0.1	35.4	0.0