|  | 
	
		|  |  
		| Paper: | Long Baseline Interferometric Observations of Asteroids: Physical Characterization of Binary Systems |  
		| Volume: | 487, Resolving The Future Of Astronomy With Long-Baseline Interferometry |  
		| Page: | 217 |  
		| Authors: | Delbo, M.; Tanga, P.; Van Belle, G.; Matter, A.; Carry, B.; Creech-Eakman, M. J. |  
		| Abstract: | Density and internal structures are among the most critical   characteristics of asteroids, yet these properties are also some of   the least known. For distant asteroids (in the Main Belt and beyond),   they were, until now, accessible only for some of the largest   (>100 km in size) asteroids. Going to smaller and fainter asteroids   can revolutionize our understanding by sampling a   new regime in physical properties.   Here we discuss how asteroid satellites can be observed by   ground-based interferometers and the data that can be   obtained. This is the most accurate approach for measuring the   mass of an asteroid without a spacecraft. |  
		|  |  
		|  |  |  |