美国国家航空航天局确认,南希·格蕾丝·罗曼太空望远镜的推进剂储备远超最初预期1。这台造价43亿美元的天文台原计划燃料寿命为至少5年,加上潜在的5年扩展期,但通过精确的发射执行和轨道机动操作,NASA现估计该望远镜燃料足以支持至少22年的科学运作1。
NASA戈达德太空飞行中心主任Jamie Dunn表示,这一成果得益于轨道动力学团队的规划、运营团队的执行以及SpaceX精确的发射1。通过精确的发动机点火操作,罗曼望远镜成功延长了其设计寿命2。这一燃料效率的提升使得这台用于寻找遥远行星并进行重力透镜观测的太空望远镜的科学使命前景大幅提升2。
NASA has confirmed that the Nancy Grace Roman Space Telescope carries far more fuel than originally anticipated, dramatically extending its operational lifetime.1 The $43 billion observatory was initially designed to operate for a minimum of five years, with a potential five-year extension, but precise execution of its launch and orbital maneuvers has enabled NASA to estimate the telescope now possesses sufficient propellant to support at least 22 years of scientific operations.1
The extended fuel supply results from exceptionally accurate engine firing procedures and careful orbital dynamics planning.1 Jamie Dunn, director of NASA's Goddard Space Flight Center, credited the orbital dynamics team's planning, the operations team's execution, and SpaceX's precise launch capability for achieving this outcome.1 This substantial fuel surplus significantly improves the science mission prospects for the telescope, which is designed to search for distant planets and conduct gravitational lensing observations.2
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