Bundle Information
IDENTIFIER urn:nasa:pds:ast.nesvorny.families::2.0
NAME Nesvorny HCM Asteroid Families
TYPE Archive
DESCRIPTION The proper elements of asteroids are obtained from the instantaneous orbital elements by removing periodic oscillations produced by gravitational interactions with planets. They are unchanging in time, at least if chaotic dynamics and non-gravitational forces could be ignored, and can therefore be used to identify fragments of major collisions (asteroid families) that happened eons ago. Here we publish a new catalog of proper elements for 1.25 million main belt asteroids. A systematic search for families yielded 153 cases not reported in Nesvorn\'y at al. (2015) -- 17 of these cases were identified in various other publications, 136 cases are new discoveries. There are now 274 families in the asteroid belt in total (plus a handful of new families in the resonant Hilda population). The present package contains member identifications for 153 new families.
SEARCH/ACCESS DATA NESVORNY HCM ASTEROID FAMILIES Online
   
Citation
DIGITAL OBJECT IDENTIFIER (DOI) 10.26033/5hyq-6k90
AUTHORS Nesvorny, D.
EDITORS
PUBLICATION YEAR 2024
DESCRIPTION The proper elements of asteroids are obtained from the instantaneous orbital elements by removing periodic oscillations produced by gravitational interactions with planets. They are unchanging in time, at least if chaotic dynamics and non-gravitational forces could be ignored, and can therefore be used to identify fragments of major collisions (asteroid families) that happened eons ago. Here we publish a new catalog of proper elements for 1.25 million main belt asteroids. A systematic search for families yielded 153 cases not reported in Nesvorn\'y at al. (2015) -- 17 of these cases were identified in various other publications, 136 cases are new discoveries. There are now 274 families in the asteroid belt in total (plus a handful of new families in the resonant Hilda population). The present package contains member identifications for 153 new families.
   
Context
START DATE TIME 1965-01-01T12:00:00.000Z
STOP DATE TIME N/A (ongoing)
LOCAL MEAN SOLAR TIME
LOCAL TRUE SOLAR TIME
SOLAR LONGITUDE
PRIMARY RESULT PURPOSE Science
PRIMARY RESULT PROCESSING LEVEL Derived
PRIMARY RESULT DESCRIPTION
PRIMARY RESULT WAVELENGTH RANGE
PRIMARY RESULT DOMAIN
PRIMARY RESULT DISCIPLINE NAME Small Bodies
Small Bodies
INVESTIGATION No Specific Investigation
OBSERVING SYSTEM
OBSERVING SYSTEM COMPONENT Literature search
Various Ground-Based Telescopes
Various Ground-Based Detectors
TARGET Multiple Asteroids
Multiple Asteroids
REFERENCES
   
Collections
DATA COLLECTION Nesvorny HCM Asteroid Families Bundle: Data Collection
DOCUMENT COLLECTION Nesvorny HCM Asteroid Families Bundle: Document Collection