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Related papers: The Mini-SiTian Array: Light Curves Analysis of As…

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As a pathfinder of the SiTian project, the Mini-SiTian (MST) array, employed three commercial CMOS cameras, represents a next-generation, cost-effective optical time-domain survey project. This paper focuses primarily on the precise data…

Physical studies of asteroids depend on an availability of lightcurve data. Targets that are easy to observe and analyse naturally have more data available, so their synodic periods are confirmed from multiple sources. Also, thanks to…

The lightcurves of asteroids are essential for determining their physical characteristics, including shape, spin, size, and surface composition. However, most asteroids are missing some of these basic physical parameters due to lack of…

Earth and Planetary Astrophysics · Physics 2024-01-30 Xiaoyun Xu , Xiaobing Wang , Karri Muinonen , Antti Penttil , Nanping Luo , Shenghong Gu , Leilei Sun , Fukun Xu , Yisi Liu , Yue Xiang , Dongtao Cao , Jianhua Wang

The Palomar Transient Factory (PTF) is a synoptic survey designed to explore the transient and variable sky in a wide variety of cadences. We use PTF observations of fields that were observed multiple times (>=10) per night, for several…

We fit 54,296 sparsely-sampled asteroid lightcurves in the Palomar Transient Factory to a combined rotation plus phase-function model. Each lightcurve consists of 20+ observations acquired in a single opposition. Using 805 asteroids in our…

This paper provides a comprehensive introduction to the Mini-SiTian Real-Time Image Processing pipeline (STRIP) and evaluates its operational performance. The STRIP pipeline is specifically designed for real-time alert triggering and light…

Instrumentation and Methods for Astrophysics · Physics 2025-04-03 Hongrui Gu , Yang Huang , Yongkang Sun , Kai Xiao , Zhirui Li , Beichuan Wang , Zhou Fan , Chuanjie Zheng , Henggeng Han , Hu Zou , Wenxiong Li , Hong Wu , Jifeng Liu

Due to the failure of the second reaction wheel, a new mission was conceived for the otherwise healthy Kepler space telescope. In the course of the K2 Mission, the telescope is staring at the plane of the Ecliptic, hence thousands of Solar…

Earth and Planetary Astrophysics · Physics 2016-11-30 R. Szabó , A. Pál , K. Sárneczky , Gy. M. Szabó , L. Molnár , L. L. Kiss , O. Hanyecz , E. Plachy , Cs. Kiss

Small aperture telescopes provide the opportunity to conduct high frequency, targeted observations of near-Earth Asteroids that are not feasible with larger facilities due to highly competitive time allocation requirements. Observations of…

Earth and Planetary Astrophysics · Physics 2021-07-30 Samuel L. Jackson , Ulrich C. Kolb , Simon F. Green

Understanding the dynamical evolution of asteroids through the secular Yarkovsky effect requires the determination of many physical properties, including the rotation period. We propose a method aimed at obtaining a robust determination of…

Earth and Planetary Astrophysics · Physics 2025-01-14 D. E. Vavilov , B. Carry

The intra-night trajectories of asteroids can be approximated by straight lines, and so are their intra-night detections. Therefore, the Hough transform, a line detecting algorithm, can be used to connect the line-up detections to find…

Photometry results of 32 asteroids are reported from only seven observing nights on only seven fields, consisting of 34.11 cumulative hours of observations. The data were obtained with a wide-field CCD (40.5'x27.3') mounted on a small,…

Astrophysics · Physics 2009-11-13 D. Polishook , N. Brosch

While of order a million asteroids have been discovered, the number in rigorously controlled samples that have precise orbits and rotation periods, as well as well-measured colors, is relatively small. In particular, less than a dozen…

Earth and Planetary Astrophysics · Physics 2015-06-12 Andrew Gould , Jennifer C. Yee

Information about the spin state of asteroids is important for our understanding of the dynamical processes affecting them. However, spin properties of asteroids are known for only a small fraction of the whole population. To enlarge the…

Earth and Planetary Astrophysics · Physics 2018-09-19 Josef Durech , Josef Hanus , Victor Ali-Lagoa

The Large Synoptic Survey Telescope (LSST) will be a ground-based, optical, all-sky, rapid cadence survey project with tremendous potential for discovering and characterizing asteroids. With LSST's large 6.5m diameter primary mirror, a wide…

Instrumentation and Methods for Astrophysics · Physics 2016-03-16 R. Lynne Jones , Mario Juric , Zeljko Ivezic

In the era of wide-field surveys like the Zwicky Transient Facility and the Rubin Observatory's Legacy Survey of Space and Time, sparse photometric measurements constitute an increasing percentage of asteroid observations, particularly for…

In addition to stellar data, Gaia Data Release 2 (DR2) also contains accurate astrometry and photometry of about 14,000 asteroids covering 22 months of observations. We used Gaia asteroid photometry to reconstruct rotation periods, spin…

Earth and Planetary Astrophysics · Physics 2018-12-05 Josef Durech , Josef Hanus

The Mini-SiTian Array serves as a pathfinder for the SiTian project, which aims to survey the entire sky in $gri$ bands every 30 minutes, reaching a limiting magnitude of 21. This special issue features 11 papers covering the design,…

Instrumentation and Methods for Astrophysics · Physics 2025-04-03 Yang Huang , Jifeng Liu , Hong Wu , Zhaohui Shang , Ali Luo , Shaoming Hu , Wenyuan Cui , Yongna Mao

Results of photometric observations of a small sample of selected Main Belt asteroids are presented. The obtained measurements can be used to achieve a better calibration of the asteroid photometric system $(H, G_1, G_2)$ adopted by the…

Earth and Planetary Astrophysics · Physics 2019-03-29 A. Carbognani , A. Cellino , S. Caminiti

The rotational properties of $\sim$10~m-scale asteroids are poorly understood with only a few measurements. Additionally, collisions or thermal recoil can spin their rotations to periods less than a few seconds obfuscating their study due…

Earth and Planetary Astrophysics · Physics 2023-10-16 B. T. Bolin , M. Ghosal , R. Jedicke
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