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Observational Data for Planets and Planetary Satellites
The creation of modern ephemerides involves the fitting to a wide variety
of astronomical measurements (observations).
This page presents the sets of observations that are currently being used
in creation and improvement of modern planetary and lunar ephemerides
as well as the planetary satellite ephemerides.
In addition to data maintained here at JPL,
data in support of the planetary ephemerides are available at the
Bureau des Longitudes, Paris.
Data for Planetary Ephemerides
These data are currently maintained by
William Folkner; JPL/Caltech (william.folkner@jpl.nasa.gov)
Meridian Circle Timings (Transits)
[ Format ]
[ References ]
- Bordeaux, 1985-96
- RGO, Herstmonceux,1957-82
- RGO, La Palma, 1984-98
- Tokyo, 1986-88
- USNO 6", 1913-76
- USNO 6", 1977-82
- USNO 6", 1986-93
- USNO 9", 1913-25, 1935-45
Photographic Astrometry of Outer Planets and Satellites
[ Format ]
[ References ]
Photographic Astrometry of Pluto
[ Format ]
[ References ]
CCD Astrometry of the Outer Planets and Satellites
[ Format ]
[ References ]
Radar Ranging
from Eupatoria, Crimea
from Goldstone, California
Spacecraft Encounter Estimates
Right ascension, declination and range estimates
from spacecraft encounters with tracking data
(Doppler, range, and VLBI) re-reduced in ICRF frame.
Spacecraft VLBI
Data from Magellan, Venus Express at Venus,
Phobos, Mars Global Surveyor, Odyssey, Mars Reconnaisance Orbiter at Mars,
and Galileo at Jupiter.
Mercury Spacecraft Range
Venus Spacecraft Doppler
Mars Spacecraft Ranging
Mars Spacecraft Doppler (Differenced Range)
[ Format ]
[ References ]
Juno Spacecraft Range
Cassini Spacecraft Range
DSN Station Locations
Data for Lunar Ephemeris
Lunar Laser Ranging
These data are provided by the International Laser Ranging Service.
Data for Planetary Satellite Ephemerides
These data are currently maintained by
Robert Jacobson; JPL/Caltech (robert.a.jacobson@jpl.nasa.gov)
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