NASA的月球卫星CAPSTONE出现故障，现处于安全模式

　　NASA的登月计划不顺啊，月球卫星又出事了。
　　正在绕月运行的CAPSTONE卫星出现了故障，NASA 现在正忙于查找问题。
　　作为 NASA 将人类送回月球的 Artemis 项目的一部分，该机构正在构思各种月球建筑，以支持长期的任务。 一个主要计划是在绕月轨道上建造一个名为＂出入口＂的空间站。 这个想法是将这个空间站放在一个称为近直线晕圈轨道的新轨道上，该轨道使用很少的燃料，需要时会使空间站靠近月球，而在其它时侯则远离月球。 由于这个轨道是理论上存在的，之前没有使用过，所以今年 6 月 28 日发射了 CAPSTONE 卫星（地月自主定位系统技术操作和导航实验）来测试该轨道。
　　As part of NASA’s Artemis project to return humans to the moon, the agency is working on various bits of lunar architecture to support missions in the long term. One major plan is to construct a space station in orbit around the moon called Gateway. The idea is to place this space station into a new orbit called a near rectilinear halo orbit, which uses little fuel and would bring the station close to the moon at some times and have it further away at other times. Because this orbit is theoretical and has not been used before, the CAPSTONE satellite (Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment) was launched on June 28 this year to test out the orbit.
　　为了进入该轨道，计划于 2022 年 11 月 13 日使卫星执行一系列轨迹修正操作。 这颗卫星于 9 月 8 日星期四进行了最新一次机动，之后一个未知问题导致卫星进入了安全模式。 美国宇航局在更新中写道：＂CAPSTONE 任务控制员已经获得了遥测数据，确认在机动快结束时出现了问题，使航天器处于安全模式。＂ ＂CAPSTONE 任务团队对卫星的状态完全掌控。 任务运营团队正在与卫星联系，并在深空网络的支持下努力寻找解决方案。＂
　　To enter the orbit, scheduled for November 13, 2022, the satellite has to perform a series of trajectory correction maneuvers. The satellite performed its latest maneuver on Thursday, September 8, after which an unknown issue caused the satellite to enter safe mode. ＂CAPSTONE mission controllers have since obtained telemetry confirming that an issue put the spacecraft in safe mode near the end of the maneuver,＂ NASA wrote in an update. ＂The CAPSTONE mission team has good knowledge of the state and status of the spacecraft. The mission operations team is in contact with the spacecraft and working towards a solution with support from the Deep Space Network.
　　这是CAPSTONE 卫星第二次出现问题。 今年 7 月，发射后不久，一次异常事件导致NASA 与 CAPSTONE 失去了联系。 几天后重新建立了与卫星的通信。 NASA 说该问题是由发送到卫星无线电系统的命令格式不正确引起的，再加上软件也出了故障，没有及时重启无线通讯。
　　摘自digitaltrends. com
　　Georgina Torbet