2023年5月30日

分享日本ispace啟動上個月幾乎成功地成為第一個團隊由私人資助的飛船在月球上。但任務以失敗告終時,9000萬美元著陸器-伯東——失去聯係任務控製器在緊急著陸月球表麵之前,將努力戛然而止。ispace推薦視頻背後的東京團隊保持積極,然而,說所有的測試任務的階段,除了最後一個是成功的,為它提供大量的數據,將會給它一個好下一次成功的機會。相關的一些數據用於其任務情況分析,調查了迫降的確切原因。從ispace在一次新聞發布會上,該公司表示,與著陸器的高度測量出錯。“雖然著陸器估計自己的高度為零,或在月球表麵,後來確定為海拔約5公裏(3.11英裏)在月球表麵之上,“ispace說。“達到預定著陸時間後,探測器繼續下降速度較低,直到燃料推進係統跑了出去。當時,著陸器的控製下降停止,它被認為是free-fallen月球表麵。“著陸器的最可能的原因是錯誤的高度估計,ispace說,是一個軟件問題。它表示,隨著探測器導航計劃著陸位置,高度測量的機載傳感器急劇上升時經過一個大的懸崖——被認為是一個火山口邊緣海拔約3公裏(1.86英裏)。“根據飛行數據的分析,測量高度之間的預期差異發生提前值和估計的高度值設置,“ispace說。 “The onboard software determined in error that the cause of this discrepancy was an abnormal value reported by the sensor, and thereafter the altitude data measured by the sensor was intercepted.” A complicating factor was the team’s decision to select a new landing site for Hakuto that it thought would be more interesting for scientists. Preparations for the new site failed to adequately take into account the lunar environment on the navigation route, resulting in the software misjudging the lander’s altitude on its final approach, ispace explained. The company said lessons learned from the mission will be incorporated into its next attempt to successfully land on the lunar surface, though a date has yet to be set for that mission. Last week, NASA published the first images of what it believes to be parts of the wreckage of the Hakuto lander, captured by the space agency’s Lunar Reconnaissance Orbiter as it passed overhead. NASA is inking contracts with private firms — ispace among them — to develop landers capable of transporting cargo to the lunar surface as part of its Artemis program. Editors' Recommendations