Introducing Tim Holt

Tim Holt (@timholtastro )is an Australian PhD candidate at the Centre for Astrophysics, University of Southern Queensland. The commute is a bit far though, as he currently has an office at the Southwest Research Institute in Boulder, CO, USA. He is in his second year of a PhD working on the Taxonomy and Dynamics of small Solar system bodies, with a primary focus on the Jovian Trojan Asteroids. There are two aspects to this work, using n-body simulations to look at the dynamics of families, and borrowing a technique from biology, cladistics for the taxonomy.

In a previous life, Tim spent his undergraduate at the University of Queensland digging up Dinosaurs. There were some diversions in retail, and a stint as a high school science teacher, before eventually settling in Astronomy with Swinburne Astronomy Online.

Besides science, Tim enjoys Sci-fi in it’s many forms, especially Internet Spaceships (Eve Online), books, IT stuff, board games and traveling.


Introducing Simon Porter

Simon Porter (@ascendingnode) is a Research Scientist at the Southwest Research Institute in Boulder, Colorado. He is a Co-Investigator on NASA’s New Horizons extended mission to encounter the cold classical Kuiper Belt Object (KBO) 2014 MU69. On the mission, he focuses on the small satellites of Pluto, determining the orbit of 2014 MU69, and the other KBOs that New Horizons is passing along the way. This summer, he is supporting the stellar occultations of MU69s, in South Africa, aboard SOFIA, and in Patagonia. In addition to mission work, he studies the orbital and tidal dynamics of other binary and triple KBOs and Centaurs.

Simon is originally from Burlington, Ontario, Canada, and grew up there, Oxfordshire, and Tennessee. He received a BS in Physics from the University of Alabama in Huntsville, and was a undergrad Space Grant intern at the Jet Propulsion Laboratory. He received his PhD in Astrophysics from the School of Earth and Space Exploration at Arizona State University, and was a Predoctoral Fellow at Lowell Observatory. Simon enjoys hiking, aerospace history, and identifying obscure aircraft/rockets/spacecraft.