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J. Randolph Jokipii, 1939-2022
Lunar and Planetary Laboratory & Department of Planetary Sciences | The University of Arizona
The mission of the Catalina Sky Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) that pose an impact risk to Earth and its inhabitants.
The identification of the iridium anomaly at the Cretaceous-Tertiary boundary (Alvarez et al. 1980), associated Chicxulub impact crater (Hildebrand et al. 1991) and the Permian-Triassic "great dying" possibly being associated with Australian Bedout Crater (Becker et al. 2004) strongly suggest that impacts by minor planets play an important role in the evolution of life.
The primary goal of Spacewatch® is to explore the various populations of small objects in the solar system, and study the statistics of asteroids and comets in order to investigate the dynamical evolution of the solar system. Spacewatch® also finds potential targets for interplanetary spacecraft missions, provides followup astrometry of such targets, and finds objects that might present a hazard to the Earth.
The Near-Earth Object Surveyor Mission, formerly called Near-Earth Object Camera (NEOCam), is a planned space-based infrared telescope designed to survey the Solar System for potentially hazardous asteroids.
ProfessorPrincipal Investigator, NEOWISE and NEO Surveyor
Research Professor (Retired)
PTYS Graduate Student
Research ScientistPrincipal Investigator, Spacewatch
Research Scientist/Senior Staff Scientist
Research Scientist/Assistant Staff Scientist
Research Scientist/Senior Staff Scientist, OSIRIS-REx/OCAMS
Chief Engineer, Spacewatch
Senior Research Specialist, Catalina Sky Survey
Principal Engineer, Catalina Sky Survey
Technical Expert, Catalina Sky Survey
R&D Engineer/Scientist IV
Research Specialist, Senior
Technical Expert, Spacewatch
Observer, Computer Systems Developer, Spacewatch
Data Engineer, Senior
Senior Systems Programmer, Catalina Sky Survey