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NASA 的 Psyche 探测器于 2023 年 10 月发射,前往富含金属的小行星 Psyche,并利用一次火星掠过来进行仪器校准。该航天器距离火星表面 4,609 公里(2,864 英里),借助火星重力增速,并启动相机、磁力计以及伽马射线与中子光谱仪,以火星大气与地形测试它们。

在这次机动中,Psyche 拍摄了数千张火星影像,包括崎岖地表细节、陨石坑周边,以及水冰富集的南极极冠。Arizona State University 的 Jim Bell 表示,这批资料对于校准相机性能,以及在任务进入小行星阶段之前评估早期影像处理工具,都具有重要价值。

掠过之后,探测器据报达到每小时 1,600 公里(994 英里/小时)的速度,同时让轨道偏移 1 度。Psyche 预定于 2029 年 8 月抵达该小行星,届时将对这个被认为是微行星部分核心的天体进行测绘,以加深对小行星本身与地球内部的理解。

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NASA’s Psyche probe, launched in October 2023 toward the metal-rich asteroid Psyche, used a Mars flyby to perform instrument calibration. The spacecraft passed within 4,609 kilometers (2,864 miles) of Mars, used the planet’s gravity to gain speed, and activated cameras, magnetometers, and gamma ray and neutron spectrometers to test them against Martian atmosphere and terrain.

During the maneuver, Psyche captured thousands of images of Mars, including rugged surface detail, crater surroundings, and the south polar cap, where water ice is concentrated. According to Jim Bell of Arizona State University, the dataset is valuable for calibrating camera performance and evaluating early image-processing tools before the asteroid phase of the mission.

After the flyby, the probe reportedly reached 1,600 kilometers per hour (994 miles per hour) while shifting its orbit by one degree. Psyche is scheduled to arrive at the asteroid in August 2029, where it will map the body, thought to be the partial core of a planetesimal, to improve understanding of both the asteroid and Earth’s interior.
2026-05-26 (Tuesday) · fadc182218df6f60daa752ab5aa0dfc178ba5dc9