• Organization: National Archives and Records Administration
• Updated: 2016-04-07

Grants awarded by the National Historical Publications and Records Commission (NHPRC) in support of history and archives projects.

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

We present the three-dimensional shapes and rotation states of the three components of near-Earth asteroid (153591) 2001 SN263 based on radar images and optical lightcurves (Becker et...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

The data set lists orbital and physical properties for well-observed or suspected binary/multiple minor planets including the Pluto system, as inspired by Richardson and Walsh (2006) and similar...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This data set presents Table 1 of Samarasinha, et al. (2004): 'Information on spin states of specific comets', as published in 'Comets II' (Festou, Keller and Weaver, eds.).

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

The Asteroid Polarimetric Database (APD) is compiled by Dmitrij Lupishko of Kharkov University. This database tabulates the original data comprising degree of polarization as a function of phase...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This data set comprises a compilation of asteroid albedos for the convenience of the user. Most but not all of the albedos compiled here also appear in other PDS data sets.

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

Collected geometric albedos at various frequencies for 2030 asteroids.

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

Discovery dates, discoverers, and discovery locations for the numbered asteroids.

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This dataset is intended to include all asteroid radar detections. An entry for each detection reports radar cross-section and circular polarization, if known, as well as the year of observation...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This data set presents tables 1, 2, 3, 4, 5 and 7 of 'Sizes, Shapes, Albedos, and Colors of Cometary Nuclei' (Lamy et al., 2004), and includes references for the sources cited. The authors culled...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

Absolute magnitudes and slopes, mostly IAU-adopted with exceptions noted, for all asteroids numbered as of the 2006 March 14 batch of Minor Planet Circulars.

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This is a tabulation of 526 determinations of asteroid pole orientations, covering 104 numbered asteroids, gathered from the literature from 1932 through 1995.

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

Absolute magnitudes and slopes, mostly IAU-adopted with exceptions noted, for all asteroids numbered as of the 2004 April 15 batch of Minor Planet Circulars

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This is a comprehensive tabulation of asteroid spin vector determinations, compiled by Agnieszka Kryszczynska and based on the earlier compilation by Per Magnusson. This is the Oct. 21, 2007...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

The Asteroid Polarimetric Database (APD) is a collection of asteroid polarimetry results compiled by D.F. Lupishko of Karazin Kharkiv National University, Ukraine. It is intended to include most...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This data set contains photometric lightcurves of near-earth asteroids obtained by Petr Pravec and his collaborators at Ondrejov Observatory. Lightcurves for 42 asteroids are included. These...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

Groundbased radar detections of asteroids, collected from the published literature by S. J. Ostro.

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This is a compilation of published lightcurve results through February, 2005.

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

Absolute magnitudes and slopes, mostly IAU-adopted with exceptions noted, for all asteroids numbered as of the 2004 April 15 batch of Minor Planet Circulars

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This dataset contains the asteroid dynamical family classifications contained in Zappala, et al. (1995) [ZAPPALAETAL1995]. These are based on the heirarchical clustering method applied to the...