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Ephemeris / WWW_USER Wed May 23 05:30:58 2018 Pasadena, USA / Horizons
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Target body name: Mars (499) {source: mar097}
Center body name: Solar System Barycenter (0) {source: DE431mx}
Center-site name: BODY CENTER
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Start time : A.D. 2015-Aug-29 00:00:00.0000 TDB
Stop time : A.D. 2015-Aug-30 00:00:00.0000 TDB
Step-size : 1440 minutes
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Center geodetic : 0.00000000,0.00000000,0.0000000 {E-lon(deg),Lat(deg),Alt(km)}
Center cylindric: 0.00000000,0.00000000,0.0000000 {E-lon(deg),Dxy(km),Dz(km)}
Center radii : (undefined)
Output units : KM-S
Output type : GEOMETRIC cartesian states
Output format : 3 (position, velocity, LT, range, range-rate)
Reference frame : ICRF/J2000.0
Coordinate systm: Ecliptic and Mean Equinox of Reference Epoch
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JDTDB
X Y Z
VX VY VZ
LT RG RR
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$$SOE
2457263.500000000 = A.D. 2015-Aug-29 00:00:00.0000 TDB
X =-1.176389005286295E+08 Y = 2.135936464902488E+08 Z = 7.350773685787022E+06
VX=-2.027713823922661E+01 VY=-9.661960006152405E+00 VZ= 2.949753324972204E-01
LT= 8.137541408244299E+02 RG= 2.439573540854340E+08 RR= 1.327343774893074E+00
2457264.500000000 = A.D. 2015-Aug-30 00:00:00.0000 TDB
X =-1.193868060069073E+08 Y = 2.127515985562028E+08 Z = 7.376008388681322E+06
VX=-2.018342979711013E+01 VY=-9.829739376784953E+00 VZ= 2.891593689697625E-01
LT= 8.141346208607908E+02 RG= 2.440714191307546E+08 RR= 1.313039007239388E+00
$$EOE
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Coordinate system description:
Ecliptic and Mean Equinox of Reference Epoch
Reference epoch: J2000.0
XY-plane: plane of the Earth's orbit at the reference epoch
Note: obliquity of 84381.448 arcseconds wrt ICRF equator (IAU76)
X-axis : out along ascending node of instantaneous plane of the Earth's
orbit and the Earth's mean equator at the reference epoch
Z-axis : perpendicular to the xy-plane in the directional (+ or -) sense
of Earth's north pole at the reference epoch.
Symbol meaning:
JDTDB Julian Day Number, Barycentric Dynamical Time
X X-component of position vector (km)
Y Y-component of position vector (km)
Z Z-component of position vector (km)
VX X-component of velocity vector (km/sec)
VY Y-component of velocity vector (km/sec)
VZ Z-component of velocity vector (km/sec)
LT One-way down-leg Newtonian light-time (sec)
RG Range; distance from coordinate center (km)
RR Range-rate; radial velocity wrt coord. center (km/sec)
Geometric states/elements have no aberrations applied.
Computations by ...
Solar System Dynamics Group, Horizons On-Line Ephemeris System
4800 Oak Grove Drive, Jet Propulsion Laboratory
Pasadena, CA 91109 USA
Information: http://ssd.jpl.nasa.gov/
Connect : telnet://ssd.jpl.nasa.gov:6775 (via browser)
http://ssd.jpl.nasa.gov/?horizons
telnet ssd.jpl.nasa.gov 6775 (via command-line)
Author : Jon.D.Giorgini@jpl.nasa.gov
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