A Service of E.A.R.N.

The Near-Earth Asteroids Data Base


Sponsored within the SSA-Programme of


Data Base of Physical and Dynamical Properties of Near Earth Asteroids (NEAs)

contains published data on all known NEAs and the corresponding bibliographic references.

In the link below, you can find a table summarizing data on various physical properties of NEOs. This table, first published in the Asteroids III Book (pp 255-271), is planned to be updated frequently, and contains now direct links to each listed asteroid's more detailed "home page" inside this database.


Important Note on the Usage of the Data in this Data-Base

All data published in the EARN webpages are for personal academic use only and may not be copied or reproduced in any way for commercial gain.

All information given in these pages is copywrited material and must not be used in publication without citation of the proper original references, listed with each entry.


In addition there is some basic statistics about the size distribution of NEAs and in particular of the Potentially Hazardous Asteroids (PHAs). Also the magnitude distribution of these two groups is given. Finally, a plot of all known Aten, Apollo, and Amor asteroids, together with their potential source region objects, i.e. Mars-crossing asteroids and Short-period comets is provided as an a-e graph (semi-major axis vs. eccentricity).

  • Discovery Statistics of all NEAs

  • Absolute Magnitude Distribution of all NEAs

  • Discovery Statistics of NEAs 2000-2005

  • Discovery Statistics of NEAs 2006-2011

  • Discovery Statistics of NEAs 2012-2017

  • Discovery Statistics of PHAs

  • Absolute Magnitude Distribution of PHAs

  • Cumulative Distributions of NEAS and PHAs

  • a-e Diagram of NEAs and related Objects

    The idea is to update these pages continuously, i.e. add data for new discoveries as soon as available, the entries for newly published data will be made on a monthly or so basis. In order to keep the entries up to the latest available data, cooperation with the researcher working the field is essential and therefore it is highly appreciated if new data are brought to our attention as soon as possible.

    Although great care is taken to check all data entered into the database files, we do not guarantee their correctness. If you find any error, or missing data that we were not aware of, we are greatful if this is brought to our attention.


    For questions about this page, please contact Gerhard Hahn

    Last updated on April 17, 2017

    This service is maintained at the Institute of Planetary Research of the German Aerospace Center (DLR) in Berlin-Adlershof, Germany.


    Related Links

    The NEO Dynamic Site NEODys at the University of Pisa which provides extensive and detailed information on the dynamical properties, i.e. orbits, evolution, ephemerides, as well as close encounter analysis and predictions.

    We now provide a link to the corresponding NEODyS homepage of each NEO directly from the respective page in this database, allowing to retrieve information more easily, we hope.