March 1979
Valhalla Basin Imaging
Voyager imagery reveals the vast multi-ring Valhalla impact structure on Callisto.
Historical place archive
Browse historical events and people recorded at Callisto in United States of America. The records below are rendered directly from the World History Database into this page's initial HTML.
Voyager imagery reveals the vast multi-ring Valhalla impact structure on Callisto.
Galileo makes its first close pass of Callisto, mapping the moon's ancient cratered surface.
Galileo flies close to Callisto, adding detailed imaging and geophysical measurements of the heavily cratered moon.
Galileo performs another targeted Callisto encounter late in its primary mission.
Galileo uses a Callisto encounter as part of a campaign to reshape its orbit for later close passes of Io.
A second 1999 Callisto flyby further lowers Galileo's closest approach to Jupiter in preparation for Io observations.
Galileo performs another Callisto gravity-assist encounter during the perijove reduction campaign.
Galileo completes the final Callisto encounter in the sequence used to prepare for close Io flybys.
Galileo passes only about 138 kilometres above Callisto during a close encounter.
Provenance
These entries are generated from stored World History Database records whose country and place fields match United States of America and Callisto. Names, dates, event labels and descriptions are reviewed and normalised as the database develops. Historical place names may not match modern administrative boundaries.
This database is a research index. For formal scholarly citation, verify individual claims against appropriate primary, archival, academic or specialist sources.