Physical properties of near earth asteroids and meteorites - introducing a publicly available database
Abstract
Data about asteroids and meteorites are an essential resource to the planetary science and planetary defense communities. The Asteroid Threat Assessment Project at NASA ARC has developed neoproperties.arc.nasa.gov to provide an easily accessible repository of aggregated data about meteorite and asteroid properties relevant to asteroid threat assessment. The neoproperties database currently contains diameters and albedos for 2300 asteroids and taxonomies for 690 asteroids. Physical properties of over 900 meteorites and 2300 unique meteorite samples are also included. Bulk density, grain density, and magnetic susceptibility measurements of over 1000 meteorite samples are available. In addition, measurements of meteorite emissivity, heat capacity, thermal conductivity, tensile and compressive strength are also provided, though for fewer samples. A mapping between asteroid taxonomic classes and related meteorite classes (and vice versa) is provided. This consolidated database can be used to support investigations into the properties of single asteroids and their likely meteorite analogs as well as facilitating analyses of the properties of the overall near earth asteroid population. We will describe how this data was aggregated, provide details about the database content, and demonstrate its use.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFM.P53D2993D
- Keywords:
-
- 4314 Mathematical and computer modeling;
- NATURAL HAZARDSDE: 4316 Physical modeling;
- NATURAL HAZARDSDE: 6022 Impact phenomena;
- PLANETARY SCIENCES: COMETS AND SMALL BODIESDE: 6055 Surfaces;
- PLANETARY SCIENCES: COMETS AND SMALL BODIES