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The MPC Users' Group (MUG) invites community feedback on any issues, concerns, or questions about the MPC.


Please provide feedback on the SBN website.

PDS Support

Mission Websites

Here we list links to the primary mission website as well as pages about the mission on other sites such as the NSSDC, NASA portal, etc.

Sakigake Mission

Sakigake (MS-T5) was a test spacecraft designed by Japan's Institute of Space and Astronautical Science (ISAS) to encounter comet 1P/Halley. Its launch was a test to confirm the performance of the newly developed ISAS launch system before the system was used to launch the Suisei spacecraft on 18 August 1985.

Sakigake (MS-T5) was launched from Kagoshima Space Center on 8 January 1985. The spacecraft carried three instruments to measure wave spectra, solar wind ions, and interplanetary magnetic fields. Sakigake flew by comet 1P/Halley at a distance of about 7 million kilometers on 11 March 1986.

Telemetry contact was lost with Sakigake on 15 November 1995. Future missions of the spacecraft had included a flyby of comet 45P/Honda-Mrkos-Pajdusakova on 3 February 1996, and a flyby of comet 21P/Giacobini-Zinner on 29 November 1998.

The SBN is the PDS node leading the efforts to restore and archive the data from the small body missions such as the Sakigake mission.


Data Sets

1P/Halley Encounter

Other Target Observations

Related Datasets

Use the Small Bodies Data Ferret to find other datasets for this mission/target.