The methods of the Mars probe ballistic trajectory design is researched,including the preliminary design and trajectory optimization. For the preliminary design based on the patched-conic theory,the Pork-chop map is adopted to select the time of launch and arrival.
研究了直接转移火星探测轨道的设计方法,其中包括初步设计和精确设计。
参考来源 - 火星探测直接转移轨道设计研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Tianwen 1 is China's first Mars probe.
“天问一号”是中国首个火星探测器。
China successfully sent the Mars probe Tianwen 1 from Wenchang, Hainan on July 23, 2020.
2020年7月23日，中国在海南文昌成功发射了火星探测器“天问一号”。
Pictures and videos sent back by China's first Mars probe allowed us to see this red planet at such a close distance.
中国首个火星探测器传回的图片和视频让我们在如此近的距离看到了这颗红色星球。
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