@inproceedings{18f1a969615340b596e5fac50a0dc899,
title = "TRAJECTORY OPTIMIZATION FOR OSIRIS-REX EARTH RETURN",
abstract = "The Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) mission is currently operating in proximity to the near-Earth asteroid (NEA) Bennu. OSIRIS-REx is scheduled to perform a Touch and Go (TAG) sample acquisition in the fall of 2020 and then return the sample to Earth. This paper details the design and optimization of the Earth-return trajectory. Daily departure trajectories for several months surrounding the baseline departure date of March 3, 2021 are presented, along with the results of trade studies examining departure dates through September 2022. The capabilities of the trajectory optimization engine used in this work—NASA Goddard Space Flight Center{\textquoteright}s (GSFC) Evolutionary Mission Trajectory Generator (EMTG)—are also described, with an emphasis on newer features that enable EMTG to optimize the OSIRIS-REx Earth-return trajectory.",
author = "Noble Hatten and Englander, {Jacob A.} and Ellison, {Donald H.} and Ryo Nakamura and Brian Sutter and Williams, {Kenneth E.} and Knittel, {Jeremy M.} and James McAdams and Daniel Wibben and Peter Antreasian and Kenneth Getzandanner and Moreau, {Michael C.} and Lauretta, {Dante S.}",
note = "Funding Information: This material is based on work supported by NASA under Contracts NNM10AA11C, NNG12FD66C, and NNG13FC02C. OSIRIS-REx is the third mission in NASA{\textquoteright}s New Frontiers Program. Dante Lauretta of the University of Arizona, Tucson, is the mission{\textquoteright}s Principal Investigator, and the University of Arizona leads the Science Team and the science observation planning and data processing. Lockheed Martin Space Systems in Denver built the spacecraft and is providing flight operations. NASA Goddard Space Flight Center and KinetX Aerospace are responsible for navigating the OSIRIS-REx spacecraft. Publisher Copyright: {\textcopyright} 2021, Univelt Inc. All rights reserved.; AAS/AIAA Astrodynamics Specialist Conference, 2020 ; Conference date: 09-08-2020 Through 12-08-2020",
year = "2021",
language = "English (US)",
isbn = "9780877036753",
series = "Advances in the Astronautical Sciences",
publisher = "Univelt Inc.",
pages = "4703--4720",
editor = "Wilson, {Roby S.} and Jinjun Shan and Howell, {Kathleen C.} and Hoots, {Felix R.}",
booktitle = "ASTRODYNAMICS 2020",
}