@article{006bb58f0d7243dd9a3e8b1eefde7806,
title = "Overcoming the Challenges Associated with Image-Based Mapping of Small Bodies in Preparation for the OSIRIS-REx Mission to (101955) Bennu",
abstract = "The OSIRIS-REx Asteroid Sample Return Mission is the third mission in National Aeronautics and Space Administration (NASA)'s New Frontiers Program and is the first U.S. mission to return samples from an asteroid to Earth. The most important decision ahead of the OSIRIS-REx team is the selection of a prime sample-site on the surface of asteroid (101955) Bennu. Mission success hinges on identifying a site that is safe and has regolith that can readily be ingested by the spacecraft's sampling mechanism. To inform this mission-critical decision, the surface of Bennu is mapped using the OSIRIS-REx Camera Suite and the images are used to develop several foundational data products. Acquiring the necessary inputs to these data products requires observational strategies that are defined specifically to overcome the challenges associated with mapping a small irregular body. We present these strategies in the context of assessing candidate sample sites at Bennu according to a framework of decisions regarding the relative safety, sampleability, and scientific value across the asteroid's surface. To create data products that aid these assessments, we describe the best practices developed by the OSIRIS-REx team for image-based mapping of irregular small bodies. We emphasize the importance of using 3-D shape models and the ability to work in body-fixed rectangular coordinates when dealing with planetary surfaces that cannot be uniquely addressed by body-fixed latitude and longitude.",
keywords = "Bennu, OCAMS images, OSIRIS-REx, asteroid, mapping, small bodies",
author = "DellaGiustina, {D. N.} and Bennett, {C. A.} and K. Becker and Golish, {D. R.} and {Le Corre}, L. and Cook, {D. A.} and Edmundson, {K. L.} and M. Chojnacki and Sutton, {S. S.} and Milazzo, {M. P.} and B. Carcich and Nolan, {M. C.} and N. Habib and Burke, {K. N.} and T. Becker and Smith, {P. H.} and Walsh, {K. J.} and K. Getzandanner and Wibben, {D. R.} and Leonard, {J. M.} and Westermann, {M. M.} and Polit, {A. T.} and Kidd, {J. N.} and Hergenrother, {C. W.} and Boynton, {W. V.} and J. Backer and S. Sides and J. Mapel and K. Berry and H. Roper and {Drouet d'Aubigny}, C. and B. Rizk and Crombie, {M. K.} and Kinney-Spano, {E. K.} and {de Le{\'o}n}, J. and Rizos, {J. L.} and J. Licandro and Campins, {H. C.} and Clark, {B. E.} and Enos, {H. L.} and Lauretta, {D. S.}",
note = "Funding Information: This material is based upon work supported by NASA under contract NNM10AA11C issued through the New Frontiers Program. Dante Lauretta of the University of Arizona, Tucson, is the principal investigator, and the University of Arizona also leads the science team and the mission{\textquoteright}s science observation planning and data processing. NASA{\textquoteright}s Goddard Space Flight Center in Greenbelt, MD, provides overall mission management, systems engineering, and the safety and mission assurance for OSIRIS-REx. Lockheed Martin Space in Littleton, CO, built the spacecraft and is providing flight operations. Goddard and KinetX Aerospace are responsible for spacecraft navigation. OSIRIS-REx is the third mission in NASA{\textquoteright}s New Frontiers Program. NASA{\textquoteright}s Marshall Space Flight Center in Huntsville, Alabama, manages the agency{\textquoteright}s New Frontiers Program for the Science Mission Directorate in Washington D.C. The Earth Gravity Assist OCAMS data used in this work are available through the Planetary Data System (http://pds.nasa.gov/). The Bullet and Embree libraries are included in publically available releases of ISIS3 as of version 3.5.2 and later (https://github. com/USGS-Astrogeology/ISIS3). The body-fixed rectangular features included in the jigsaw application will be made available in version 3.6 of ISIS3. NEAR Multi-Spectral Imager data of asteroid (433) Eros used to demonstrate of software capabilities are available through the Planetary Data System Small Bodies Node (https://pds-small-bodies.astro.umd.edu/). Funding Information: This material is based upon work supported by NASA under contract NNM10AA11C issued through the New Frontiers Program. Dante Lauretta of the University of Arizona, Tucson, is the principal investigator, and the University of Arizona also leads the science team and the mission's science observation planning and data processing. NASA's Goddard Space Flight Center in Greenbelt, MD, provides overall mission management, systems engineering, and the safety and mission assurance for OSIRIS-REx. Lockheed Martin Space in Littleton, CO, built the spacecraft and is providing flight operations. Goddard and KinetX Aerospace are responsible for spacecraft navigation. OSIRIS-REx is the third mission in NASA's New Frontiers Program. NASA's Marshall Space Flight Center in Huntsville, Alabama, manages the agency's New Frontiers Program for the Science Mission Directorate in Washington D.C. The Earth Gravity Assist OCAMS data used in this work are available through the Planetary Data System (http://pds.nasa.gov/). The Bullet and Embree libraries are included in publically available releases of ISIS3 as of version 3.5.2 and later (https://github.com/USGS-Astrogeology/ISIS3). The body-fixed rectangular features included in the jigsaw application will be made available in version 3.6 of ISIS3. NEAR Multi-Spectral Imager data of asteroid (433) Eros used to demonstrate of software capabilities are available through the Planetary Data System Small Bodies Node (https://pds-smallbodies.astro.umd.edu/). Publisher Copyright: {\textcopyright} 2018. The Authors.",
year = "2018",
month = dec,
doi = "10.1029/2018EA000382",
language = "English (US)",
volume = "5",
pages = "929--949",
journal = "Earth and Space Science",
issn = "2333-5084",
publisher = "Wiley-Blackwell Publishing Ltd",
number = "12",
}