After nearly breaking, NASA's Deep Space Network "worked well" on Artemis II
摘要
NASA在近四年前的阿尔忒弥斯一号任务中，深空网络（DSN）因数据需求激增而接近极限，导致詹姆斯·韦伯太空望远镜和火星车等多项科学任务的下行链路减少或延迟。今年4月1日发射的阿尔忒弥斯二号任务中，DSN再次承担起为载有四名宇航员的猎户座飞船提供通信支持的重任。尽管任务对数据的需求更高，但9天多的飞行时长较一号任务的25天更短，且搭载的立方星数量更少，从而缓解
NASA pushed its Deep Space Network beyond its limits during the Artemis I mission nearly four years ago. The global array of deep space communications antennas couldn't keep up with the routine demands of 40 robotic science missions and the extraordinary surge required by NASA's Orion space capsule as it flew around the Moon.
The experience in late 2022 reduced or delayed downlinks from several high-profile science missions, including the James Webb Space Telescope and Mars rovers, as the data-hungry Artemis I mission took priority on NASA's communications network. And that was before the first Artemis mission with astronauts onboard. When Artemis II launched April 1, NASA called upon the Deep Space Network (DSN) again to connect Mission Control to the Orion capsule as it soared more than a quarter of a million miles from Earth.
With a crew of four flying inside the spacecraft, the agency's appetite for data from Orion on Artemis II was even higher than it was on Artemis I. But at a little more than nine days, the Artemis II mission was shorter than the 25 days Artemis I spent in space, helping alleviate the communications overload. Artemis I also launched 10 small CubeSats into deep space, many of which required tracking and telecom services from the DSN. Artemis II carried fewer CubeSats.
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