机智号的第40火星日

2021年04月03日

Ingenuity on Sol 39
Image Credit: NASA / JPL-Caltech / MSSS

Explanation: The Mars Ingenuity Helicopter, all four landing legs down, was captured here on sol 39 (March 30) slung beneath the belly of the Perseverance rover. The near ground level view is a mosaic of images from the WATSON camera on the rover’s SHERLOC robotic arm. Near the center of the frame the experimental helicopter is suspended just a few centimeters above the martian surface. Tracks from Perseverance extend beyond the rover’s wheels with the rim of Jezero crater visible about 2 kilometers in the distance. Ingenuity has a weight of 1.8 kilograms or 4 pounds on Earth. That corresponds to a weight of 0.68 kilograms or 1.5 pounds on Mars. With rotor blades spanning 1.2 meters it will attempt to make the first powered flight of an aircraft on another planet in the thin martian atmosphere, 1 percent as dense as Earth’s, no earlier than sol 48 (April 8).

Tomorrow’s picture: In, Through, and Beyond

机智号的第40火星日
影像提供: >NASA / JPL-Caltech / MSSS

说明: 在这张摄于第40火星日的影像里，机智号火星直升机悬挂在毅力号火星车的机腹之下，4根降落支架完全伸展。这幅近贴表面视角的影像，是由这部火星车夏洛克机械臂上的华生相机，所拍摄的照片拼接而成其中，位在中心附近悬垂的实验性直升机，离火星表面只有数公分。此外，在火星车轮的后方，可见到毅力号的轮痕，以及约2公里外的杰泽罗陨石坑之坑沿。在地球上，灵巧号约4公斤重，不过到了火星，只剩0.68公斤重。在4月8日（第49火星日）之后，配备1.2公尺长旋翼的机智号，将尝试在大气密度只有地球百分之一的另一颗行星上，进行首次的飞行器动力飞行。

明日的图片: In, Through, and Beyond