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卫星发射与运营
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马斯克星链卫星大批坠落!
Zheng Quan Shi Bao· 2025-06-10 09:19
Core Insights - SpaceX's Starlink satellites are experiencing an increased rate of re-entry into Earth's atmosphere, primarily due to heightened solar activity [1][2][3] Group 1: Satellite Re-entry and Solar Activity - A study by the University of Maryland and NASA indicates that the current increase in solar activity is causing Starlink satellites to fall into the atmosphere faster than expected [2][3] - The research analyzed the orbital data of 523 Starlink satellites from 2020 to 2024, revealing that during strong geomagnetic storms, the rate of satellite re-entry significantly exceeds predictions [2][3] - Since the launch of Starlink in 2019, the number of satellites lost has escalated, with 316 satellites burning up in the atmosphere in 2024 alone, totaling 583 satellites lost to date [2][3] Group 2: Solar Activity Impact - The report highlights that the current solar activity peak is affecting satellite re-entry, with the number of low Earth orbit satellites at an all-time high [3] - Solar activity follows an approximately 11-year cycle, with increased sunspots leading to solar flares and coronal mass ejections that can heat the upper atmosphere, increasing drag on satellites [3] - Interestingly, 70% of satellite re-entries occur during moderate to weak geomagnetic storms, suggesting prolonged exposure to lower intensity storms may also contribute to orbital decay [3] Group 3: SpaceX Financial Performance and Valuation - SpaceX's Starlink project aims to provide global satellite broadband, with an estimated cost of $30 billion for a planned constellation of 42,000 satellites [4] - The company anticipates revenues of approximately $15.5 billion in 2023, with $1.1 billion coming from NASA [4] - Starlink is projected to generate around $8 billion in revenue in 2024, accounting for about 60% of SpaceX's total revenue, with user numbers expected to grow from 4.6 million in 2024 to 7.8 million in 2025 [5] Group 4: Investment and Valuation Growth - Since 2006, SpaceX has raised over $6 billion through 13 funding rounds, with the latest round in April 2023 raising $4.6 billion [5] - As of December 2024, SpaceX's valuation is estimated at $350 billion, based on a stock buyback at $185 per share [5] - Alphabet, Google's parent company, reported $8 billion in unrealized gains from its investment in SpaceX, indicating strong investor confidence in the company's future [5]