亚马逊已有足够的卫星来发射其星链竞争对手。
Amazon has enough satellites to launch its Starlink competitor

原始链接: https://www.theverge.com/science/960563/amazon-leo-service-tipping-point

亚马逊的“柯伊伯计划”(Project Kuiper)卫星互联网服务已达成关键里程碑,成功将 396 颗卫星部署至近地轨道。这一成就使该服务能够在初始纬度地区实现持续运行,确保公司有望实现 2026 年中期的商业发布目标。 然而,亚马逊前方仍有漫长的路要走。早期用户需预见性能方面的挑战,这类似于 SpaceX 星链(Starlink)的“测试”阶段,当时存在频繁的服务中断和覆盖范围有限等问题。尽管星链现已发展成为拥有超过 10,000 颗卫星且具备高速连接能力的成熟全球网络,但亚马逊 3,232 颗卫星的部署计划仍处于早期阶段。由于蓝色起源公司(Blue Origin)的“新格伦”运载火箭研发延迟,亚马逊的进展受到阻碍;这意味着亚马逊可能还需要数年时间,才能在性能和全球覆盖范围上与星链抗衡。

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原文

Amazon says it now has enough satellites operating in low-Earth orbit to light up its Starlink internet competitor. With last night’s launch, Amazon Leo has 396 satellites deployed, which is “enough to support continuous service across initial latitudes,” according to Chris Weber, VP heading up business and product for Amazon Leo. That puts the company on track to meet its “mid-2026” target for commercial availability. Just don’t expect miracles on day one.

SpaceX went live with its “Better than nothing beta” back in 2020 when it had almost 900 satellites operating in low-Earth orbit. It initially served a narrow band of users in the upper US and Canada, who complained about frequent service interruptions and high sensitivity to obstructions, with speeds between 50Mbps and 150Mbps, and latency from 20ms to 40ms. By 2022, the service and coverage areas had already dramatically improved.

Early adopters of Amazon’s Leo service can expect the same initially, with future satellite launches helping to improve performance, increase capacity, and expand global coverage.

SpaceX currently has over 10,000 Starlink satellites in operation, providing robust internet connectivity on land, sea, and air in over 160 countries. Performance varies by the dish, service level paid for, time of day, and location of the user, but we’re now talking 200Mbps median download speeds, 10Mbps to 40Mbps uploads, and latency hovering around 25ms.

It’ll be years before Amazon can boast similar performance numbers as it continues to launch a planned 3,232 Leo satellites. Right now it’s well behind schedule, in part due to Jeff Bezos’ struggle to get Blue Origin’s reusable New Glenn launch vehicle into regular operation.

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