Program with Links to Abstracts

8:20 AM

Session Introduction

8:25 AM

Deleon A. P.* Becker T. M. Marshall S. E. Pravec P. Hornoch K. et al.

Characterization of Asteroid (163693) Atira with Arecibo Radar and Multi-Epoch Photometric Observations [#1685]
We use Arecibo radar and photometric observations of (163693) Atira to perform iterative modeling procedures, reporting likely orientation and rotation period.

8:35 AM

Champagne C. E.* Rivera-Valentín E. G. Aponte-Hernández B. Taylor P. A.

Automation of Size Estimation of Near-Earth Asteroids from Low SNR Arecibo Radar Imaging [#1530]
Our team developed an algorithm that applies noise statistics to low SNR radar images of near-Earth asteroids to determine their size.

8:45 AM

McAdam M. M.* Thomas C. A. McGraw L. E. Rivkin A. S. Emery J. P.

3-µm Spectroscopic Survey of Main Belt S-Type Asteroids: Widespread Hydration Detected [#2475]
Dry inner main belt / Is hydrated after all / Why? A mystery.

8:55 AM

Humes O. A.* Thomas C. A. Emery J. P. Martin A. M.

Mid-Infrared Spectroscopy of Primitive Asteroids in the Main Belt [#1712]
Combining novel SOFIA and archival Spitzer data, we examine the 10- and 20-µm silicate emission features of main-belt D- and P-type asteroids.

9:05 AM

Panel Q&A

9:25 AM

Jawin E. R.* Ballouz R.-L. Kaplan H. H. Ryan A. J. Al Asad M. M. et al.

Integrated Boulder Analysis at Nightingale Can Inform Sample Return from Asteroid Bennu [#1807]
Bennu’s boulders can be divided into groups based on morphology, albedo, surface roughness, and thermal properties, which help prepare for the returned sample.

9:35 AM

Sugita S.* Kobayashi H. Sugiura K. Genda H. Tatsumi E. et al.

Collisional Histories of Asteroids Ryugu and Bennu Inferred from the Abundance of Exogenic Boulders [#1240]
We simulated catastrophic disruptions of 100-km parent bodies and subsequent collisional cascade to reproduce exogenic boulder abundance on Ryugu and Bennu.

9:45 AM

Ballouz R.-L.* Barnouin O. S. Daly R. T. Ernst C. M. Sugita S. et al.

Disrupted Boulders on the Surfaces of Near-Earth Asteroids Bennu, Ryugu, and Dimorphos [#2505]
We present observations of disrupted boulders on the surface of near-Earth asteroids. We discuss the implications for regolith development on small bodies.

9:55 AM

El-Maarry M. R.* Marschall R. Pajola M.

Investigating the Origin and Evolution of Large and Giant Boulders on Comet 67P/Churyumov-Gerasimenko [#2234]
Large (tens of meters in size) boulders on comet 67P display interesting textures. We also run simulations to investigate their potential origin from outbursts.

10:05 AM

Panel Q&A

10:25 AM

Zou X.-D.* Becker K. Li J.-Y. Palmer E. Gaskell R. et al.

Dealing with a Changing Surface: Lessons Learned from Comet 67P/Churyumov-Gerasimenko [#1991]
About the problems and interesting findings when dealing with the changing surface of 67P.

10:35 AM

Barrington M. N.* Birch S. P. D. Jindal A. Corlies P. Hayes A. G. et al.

Surface Evolution and Sediment Transport on Comet 67P/Churyumov-Gerasimenko [#2412]
We catalog changes in the smooth terrains of comet 67P/Churyumov-Gerasimenko to interpret sediment transport pathways and to describe comet surface evolution.

10:45 AM

Yokota Y.* Honda R. Arakawa M. Sugita S. Shirai K. et al.

Photometric Parameters of the Ejecta Deposits Around an Artificial Crater on Asteroid Ryugu [#2591]
Photometric parameters obtained around the artificial craters of the asteroid Ryugu detected textural changes due to ejecta deposition.

10:55 AM

Takir D.* Emery J. P.

Diversity of Primitive Asteroids in the Heliocentric Region Between 3 AU and 4 AU [#2283]
We present new near-infrared spectra of seven primitive asteroids in the heliocentric region: 3.0 au < a < 4.0 au and characterize their surface compositions.

11:05 AM

Panel Q&A

11:25 AM

Session Closure