HelioWeb


Heliocentric Trajectories for Selected Spacecraft, Planets, and Comets
The original trajectory data are taken from http://ssd.jpl.nasa.gov/horizons.cgi where users can find many more objects.

*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  NEWHORIZONS     2006  020 - 2030  365
ARTEMIS-P2(THEMIS-C)   2009  023 - 2011  228  PIONEER 10      1972  063 - 2049  365
CASSINI                1997  289 - 2017  264  PIONEER 11      1973  096 - 2049  365
DAWN                   2007  270 - 2015  135  PHOBOS 2        1988  195 - 1989  030
EARTH (IMP8,etc *)     1965  001 - 2020  366  PLUTO           1970  001 - 2050  001
GALILEO                1989  293 - 2003  273  Rosetta         2004  063 - 2016  366 
GIOTTO                 1992  001 - 1992  366  SAKIGAKE        1985  021 - 1997  365  
HELIOS 1               1974  345 - 1985  365  SATURN          1965  001 - 2020  366
HELIOS 2               1976  001 - 1985  365  SOHO            1996  001 - 2019  028   
ICE                    1984  001 - 1999  365  SOLAR PROBE     2018  225 - 2019  090
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 - 2018  270  VOYAGER 1       1977  249 - 2030  365
MERCURY                1965  001 - 2020  366  VOYAGER 2       1977  233 - 2030  365
MESSENGER              2004  217 - 2015  121                                            

COMET Grigg-Skjellerup 1984  001 - 2020  366 COMET BORRELLY         1996  001 - 2018  365  
COMET H-M-P            1996  001 - 1996  062 COMET WILD 2           1995  001 - 2020  366  
COMET HALE-BOPP        1996  001 - 2018  365 COMET HYAKUTAKE        1995  001 - 2020  366  
COMET HALLEY           1984  001 - 2020  365 COMET GIACOBINI-ZINNER 1984  001 - 2020  366 
  
*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/.
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