论文标题
GBOT小行星调查（第一年：2015年1月 - 2018年5月）
The GBOT Asteroid Survey (First years: Jan. 2015 - May 2018)
论文作者
论文摘要
GBOT组负责Gaia卫星的基于地面的光学跟踪。从具体的角度来看，自盖亚（Gaia）推出以来，我们的任务是使用基于地面的中产阶级望远镜，$ 10 $或20美元的盖亚卫星图像的短序列，靠近其子午线交通。为此，我们主要使用VLT调查望远镜和利物浦望远镜。在这些图像中，靠近太阳的反对派 - 由于盖亚（Gaia）在l $ _2 $中 - 我们观察到许多小行星：每晚$ 30 $至100美元的小行星之间，最高可达$ 22 $。为了提取星体位置以及这些小行星的大小，我们已经针对这项日常任务明确定制了半自动方法，策略和工具。在仅三年半的时间里，该系统就允许我们将位置和光度法发送至小星球中心，并以大约20,000美元的小行星为单位，其中有9,000美元的新物体。在这里，我们描述了小行星调查的所有方面。
The GBOT group is in charge of the Ground Based Optical Tracking of the Gaia satellite. In concrete terms, since the launch of Gaia, our task is to take every night, using ground based medium-class telescopes, short sequences of $10$ or $20$ images of the Gaia satellite close to its meridian transit. For this purpose, we mainly use the VLT Survey Telescope and the Liverpool Telescope. In these images, taken close to the Sun's opposition - since Gaia is in L$_2$ - we observe many asteroids: between $30$ and $100$ asteroids every night, up to magnitude $22$. In order to extract the astrometric positions as well as the magnitudes of these asteroids, we have developed semi-automatic methods, strategies and tools tailored explicitly for this daily task. In only three and a half years of operation, this system has allowed us to send to the Minor Planet Center the position and the photometry for about $20,000$ asteroids, amongst which $9,000$ new objects. Here we describe all the aspects of the GBOT asteroid survey.
