This week’s Tea Time Talk.
This week, Dr. Irene Antonenko will be presenting her research with OSIRIS-Rex (currently on the way to asteroid 101995 Bennu) OLA data. Irene is developing techniques to extract as much science from the laser altimeter data as possible. Should be a very exciting talk! Join us on Thursday, November 9th at 2:30PM in Bergeron 313. Coffee and treats will be available.
Here are more details:
Title: Extracting Space Craft and Asteroid Rotation Information from OSIRIS-Rex OLA Data
Irene has degrees in Astrophysics, Geological Engineering, and Planetary Science. Since completing her PhD at Brown University, she has done post-doctoral work at the University of Winnipeg and the University of Western Ontario, been a lecturer at the University of Toronto, worked as a Science Liaison for two NASA missions, tested geospatial software for the mining industry, and documented retail risk models for the finance industry. Currently, Irene is working as a research associate in Professor Mike Daly’s Planetary Instrumentation Laboratory (PIL), researching information extraction from OSIRIS-Rex OLA data.
Abstract: The Canadian Space Agency (CSA) has contributed a laser altimeter to NASA’s OSIRIS-REx mission, which is currently en route to the asteroid Bennu. Laser altimeters work by firing short laser pulses at a surface and measuring the time it takes for the laser pulse to be reflected back to a sensor. Generally, this allows the distance to a surface to be precisely measured. However, the OSIRIS-REx laser altimeter, called OLA, produces a point cloud of data whose density is similar to camera imagery. Thus, comparisons of OLA and camera data could, theoretically, yield additional information. For example, camera data encompasses a large surface area that is captured instantaneously, but laser data must be collected one point at a time, so the same area will take several minutes to acquire. During this time, both the spacecraft and the asteroid continue to move. Thus, when compared to the camera data, OLA data should contain information about these motions. Extracting details on both the spacecraft’s orbital motion and the asteroid’s rotational motion are the goals of this work.
As always, if you want to sign up for a talk, click the following link (fixed) https://docs.google.com/spreadsheets/d/1pmmxOrL7rmxwH63xrApcVEVzpFbGfxfDAWlN0uy_Q1o/edit?usp=sharing, or reply directly to this email to get in touch!
Tea Time Talk with Dr. Irene Antonenko
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