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ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2014 JANUARY-MARCH.

Brian D Warner1

  • 1Center for Solar System Studies / MoreData!, 446 Sycamore Ave., Eaton, CO 80615 USA.

The Minor Planet Bulletin
|June 18, 2020
PubMed
Summary

Astronomers observed 40 main-belt asteroids, focusing on the Hungaria group, to search for satellites and refine models. Asteroid 5175 Ables showed potential signs of a satellite but lacked definitive evidence of a binary system.

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Area of Science:

  • Asteroid science
  • Solar system dynamics
  • Photometric observation

Background:

  • The Hungaria asteroid group is a population of small, inner Solar System bodies.
  • Asteroid lightcurve analysis is crucial for determining rotation periods, shapes, and detecting satellites.
  • Previous observations often require follow-up to confirm or refine data.

Purpose of the Study:

  • To obtain lightcurves for 40 main-belt asteroids.
  • To investigate the Hungaria asteroid group for potential satellites.
  • To gather data for spin axis and shape modeling.

Main Methods:

  • Photometric observations were conducted at the Center for Solar System Studies-Palmer Divide Station (CS3-PDS).
  • Data collection spanned from January to March 2014.

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  • Lightcurve analysis was performed to identify rotational periods and anomalies.

    • Main Results:

    • Lightcurves for 40 main-belt asteroids were successfully acquired.
    • The majority of observed asteroids belonged to the Hungaria group.
    • Asteroid 5175 Ables exhibited a two-period signal, suggesting a possible satellite, but mutual events were not observed.

    Conclusions:

    • Asteroid 5175 Ables is a candidate for a binary system, though not definitively confirmed.
    • Further observations are needed to verify the satellite hypothesis for 5175 Ables.
    • The study contributes to the understanding of asteroid populations and their potential characteristics.