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Missions to Neptune: Past, Present and Future

The following table lists all missions to Astroids, including those that failed, starting with the most recent. The table is colour coded to reflect the lead country or space agency, and missions are listed by launch date. The RPIF, here at UNB holds data and images from many of the NASA led missions.

Any questions or comments please Contact PASSC.

Red - USSR or Russian led missions


Blue - NASA led missions


Purple - Japanese Space Agency led missions


Green - European Space Agency led missions


Yellow - China National Space Administration led missions


Orange - Indian Space Research Organization


Launch Date Mission Success Type Instruments Goal Database
1977/08 Voyager 2 Success Flyby & Probe

-High-gain antenna

-Low-gain antenna

-Computer Command Subsystem (CCS)

-Attitude and Articulation Control Subsystem (AACS)

-Flight Data Subsystem (FDS)

-Radioisotope thermoelectric generators (RTGs)


-Explore the outer solar system including Jupiter, Saturn, Uranus and Neptune

-Investigate the circulation, dynamics, structure and composition of the planet’s atmosphere

-Characterize the morphology, geology, and physical state of the satellites of the planet

-Provide improved values for the mass, size and shape of the planet, its satellites, and any rings

-Determine the magnetic field structure and characterize the composition and distribution of energetic trapped particles and plasma therein.




PASSC Director: John Spray
Data Manager: Data Manager

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Planetary and Space Science Centre
University of New Brunswick
Fredericton, New Brunswick, Canada
Contact PASSC