Scholarlink

<b>Abstract</b>— <p>The paper presents the results of photometric observations of the near-Earth asteroid (65803) Didymos, conducted on the 70-cm AZT-8 telescope of the Hisar Astronomical Observatory of the Institute of Astrophysics of the National Academy of Sciences of Tajikistan over seven nights from August 29 to September 6, 2022. Using the Lomb–Scargle method, the asteroid’s rotation period was determined to be <i>P</i> = 2.3562 ± 0.0040 h. The uncertainty Δ<i>P</i> was estimated using three independent methods: Bootstrap (Monte Carlo), FWHM, and <i>Q-</i>factor. Analysis of the phase curve using a two-harmonic Fourier series confirms the double-humped shape of the light curve, characteristic of rotating irregularly shaped objects. The results are consistent with period estimates obtained before the DART space experiment and can be used for further modeling.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Photometry of Asteroid (65803) Didymos: Determination of the Rotation Period and Its Uncertainty

  • 期刊论文

  • 发表日期：

    2026年5月19日

查看全文
  • A. G. Safarov,
  • S. N. Safarzoda,
  • N. Kh. Minikulov

摘要

Abstract—

The paper presents the results of photometric observations of the near-Earth asteroid (65803) Didymos, conducted on the 70-cm AZT-8 telescope of the Hisar Astronomical Observatory of the Institute of Astrophysics of the National Academy of Sciences of Tajikistan over seven nights from August 29 to September 6, 2022. Using the Lomb–Scargle method, the asteroid’s rotation period was determined to be P = 2.3562 ± 0.0040 h. The uncertainty ΔP was estimated using three independent methods: Bootstrap (Monte Carlo), FWHM, and Q-factor. Analysis of the phase curve using a two-harmonic Fourier series confirms the double-humped shape of the light curve, characteristic of rotating irregularly shaped objects. The results are consistent with period estimates obtained before the DART space experiment and can be used for further modeling.