I discuss the current low Earth orbit artificial satellite population and show that the proposed `megaconstellation' of circa 12,000 Starlink internet satellites would dominate the lower part of Earth orbit, below 600 km, with a latitude-dependent areal number density of between 0.005 and 0.01 objects per square degree at airmass < 2. Such large, low altitude satellites appear visually bright to ground observers, and the initial Starlinks are naked eye objects. I model the expected number of illuminated satellites as a function of latitude, time of year, and time of night and summarize the range of possible consequences for ground-based astronomy. In winter at lower latitudes typical of major observatories, the satellites will not be illuminated for six hours in the middle of the night. However, at low elevations near twilight at intermediate latitudes (45-55 deg, e.g. much of Europe) hundreds of satellites may be visible at once to naked-eye observers at dark sites.
Toward Spectrum Coexistence: First Demonstration of the Effectiveness of Boresight Avoidance between the NRAO Green Bank Telescope and Starlink Satellites
Modelling steerable beams of satellite constellations for radio astronomy impact studies
SKA Observatory（平方公里阵列望远镜观测台）；IAU Centre for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference（国际天文学联合会暗静天空保护中心）；Onsala Space Observatory, Chalmers University of Technology（翁萨拉空间天文台，查尔姆斯理工大学）
Detection of intended and unintended emissions from Starlink satellites in the SKA-Low frequency range, at the SKA-Low site, with an SKA-Low station analog
Satellite Constellation Avoidance with the Rubin Observatory Legacy Survey of Space and Time
我们研究了一种新的卫星回避策略，以减轻低地球轨道上的大型商业卫星星座对Vera C的影响。Rubin Observatory Legacy Survey of Space and Time（鲁宾天文台时空遗产巡天）我们模拟了目前计划中的Starlink和OneWeb星座（$\sim$ 40，000颗卫星）的轨道，以测试升级后的Rubin调度算法如何有效地避免它们，并评估整体调查如何受到影响。给出了一个相当准确的卫星轨道预测，我们发现它是可能的调整调度算法，以有效地避免一些卫星。总的来说，牺牲10%的LSST观测时间来避开卫星，会使LSST访问条纹的比例减少两倍。是否需要这样的缓解取决于条纹对科学的总体影响，这还没有很好地量化。这是由于缺乏足够的信息，卫星亮度分布以及闪烁和低表面亮度残差的影响，警报纯度和宇宙学参数估计的系统误差。鲁宾行动期间卫星数量或亮度的显著增加可能使实施这种卫星回避策略变得值得。
Harmonic and intermodulation emission from direct-to-device satellites - Harmonics of the Starlink 2.6 GHz downlink and the products around them
CSIRO Space & Astronomy（CSIRO空间与天文）；Max-Planck-Institut für Radioastronomie（马克斯·普朗克射电天文研究所）；SKAO, Square Kilometre Array Observatory（平方公里阵列射电望远镜观测站）；Centre for Radio Astronomy Techniques and Technologies (RATT), Department of Physics and Electronics, Rhodes University（罗德斯大学物理与电子学院射电天文技术与方法中心）
Enhancing Space Situational Awareness to Mitigate Risk: A Single-Case Study in the Misidentification of a Recently-Launched Starlink Satellite Train as a UAP in Commercial Aviation
Identifying and Measuring Satellite Streaks in DECam Images
Universidad Industrial de Santander（桑坦德工业大学）；IAU Centre for the Protection of the Dark and Quiet Sky, IAU-UAI Headquarters（国际天文学联合会保护黑暗与宁静天空中心，国际天文联合会总部）；University of Washington（华盛顿大学）；SLAC National Accelerator Laboratory（斯坦福直线加速器中心）；Kavli Institute for Particle Astrophysics and Cosmology, Stanford University（卡弗里粒子天体物理与宇宙学研究所，斯坦福大学）
jaxsgp4: GPU-accelerated mega-constellation propagation with batch parallelism
Kavli Institute for Cosmology, University of Cambridge（剑桥大学卡弗里宇宙学研究所）；Institute of Astronomy, University of Cambridge（剑桥大学天文学研究所）；PolyChord Ltd.（PolyChord有限公司）
SpaceTrack-TimeSeries: Time Series Dataset towards Satellite Orbit Analysis
Shanghai Satellite Network Research Institute Co., Ltd.（上海卫星网络研究所有限公司）；State Key Laboratory of Satellite Network（卫星网络国家重点实验室）；Shanghai Key Laboratory of Satellite Network（上海卫星网络重点实验室）
