HelioWeb


Heliocentric Trajectories for Selected Spacecraft, Planets, and Comets
*About using this interface
* How to get data from command line
*Description of coordinate systems
*Trajectory data books of 1986, 1991, 1997
* Geocentric orbits from SSCWeb


*Path to information on additional planets

List of Heliospheric Objects and their time spans available

ARTEMIS-P1(THEMIS-B) 2009  023 - 2011  228  MESSENGER       2004  217 - 2015  121
ARTEMIS-P2(THEMIS-C) 2009  023 - 2011  228  NEWHORIZONS     2006  020 - 2016  253
CASSINI              1997  289 - 2017  264  PIONEER 10      1972  063 - 2005  365
DAWN                 2007  270 - 2015  135  PIONEER 11      1973  096 - 1999  365
EARTH (IMP8,etc *)   1965  001 - 2020  366  PHOBOS 2        1988  195 - 1989  030
GALILEO              1989  293 - 2003  273  PLUTO           1970  001 - 2050  001 
GIOTTO               1992  001 - 1992  366  Rosetta         2004  063 - 2016  366 
HELIOS 1             1974  345 - 1985  365  SAKIGAKE        1985  021 - 1997  365 
HELIOS 2             1976  001 - 1985  365  SATURN          1965  001 - 2020  366  
ICE                  1984  001 - 1999  365  SOHO            1996  001 - 2017  030 
ICE_Return           2008  212 - 2014  221  STEREOA         2006  300 - 2029  168 
JUNO                 2011  222 - 2017  288  STEREOB         2006  300 - 2029  167
JUPITER              1965  001 - 2020  366  SUISEI          1989  001 - 1999  365
MARS                 1965  001 - 2020  366  ULYSSES         1990  280 - 2049  365
MARS SCIENCE LAB.    2011  331 - 2012  218  VENUS (PVO *)   1965  001 - 2020  366
MAVEN                2013  323 - 2016  061  VOYAGER 1       1977  249 - 2030  365
MERCURY              1965  001 - 2020  366  VOYAGER 2       1977  233 - 2030  365
                                            
COMET GRIGG-SKJLP    1992  001 - 1993  001 COMET BORRELLY   2000  001 - 2002  365  
COMET H-M-P          1996  001 - 1996  062 COMET WILD 2     2002  001 - 2004  366  
COMET HALE-BOPP      1997  001 - 1997  365 COMET HYAKUTAKE  1995  244 - 1996  366  
COMET HALLEY         1984  001 - 1987  365 COMET GIACOBINI-ZINNER 1984  001 - 1986  365 
  
*Orbit data are for the planets and not specifically for the spacecraft in orbit about the planets. On a heliospheric scale, differences are very small. For instance, the heliocentric longitudes of an L1 spacecraft at Ygse = 100 Re and the Earth differ by only 0.25 degrees

Please Click and Fill the Form below, then Submit Query to request parameters


Select an activity
List data Create file Time series plot XYZ-trajectoies( plot, listing)

Name of main S/C or object:

Output coordinate system:

Start year: Start day: Stop year: Stop day:

Time resolution (in days):


Optional: Name of additional S/C or object 2*:
*In this case the difference of between coordinates of main and additional objects will be calculated

Output data will be calculated for Equinox Epoch: "Mean of date"



More precise coordinates, and some planet-centered coordinates, are found in the "traj" subdirectories
of spacecraft-specific directories at ftp://spdf.gsfc.nasa.gov/pub/data/.

An alternative site is http://ssd.jpl.nasa.gov/horizons.cgi


If you have any question/comments about WWW access to the ephemerides data,
contact: Dr. Natalia Papitashvili, E-mail:Natalia.E.Papitashvili@nasa.gov,
Mail Code 672, NASA/Goddard Spaceflight Center, Greenbelt, MD 20771

NASA Official: Dr. Robert McGuire, Head of the Space Physics Data Facility