NASA’s LRO (Lunar Reconnaissance Orbiter), which has been circling and studying the Moon for 15 years, captured several images of Korea Aerospace Research
), which has been circling and studying the Moon for 15 years, captured several images of Korea Aerospace Research Institute’s Danuri lunar orbiter last month. The two spacecraft, traveling in nearly parallel orbits, zipped past each other in opposite directions between March 5 and 6, 2024.
The dark spot centered in the bottom third of this image is the Korea Aerospace Research Institute’s Danuri orbiter, smudged because it was traveling quickly in the opposite direction of NASA’s LRO when LRO snapped the photo. At the time, Danuri was orbiting 5 miles, or 8 kilometers, below LRO’s orbit, and LRO was about 50 miles, or 80 kilometers, above the Moon’s surface. This image covers an area about 2 miles, or 3 kilometers, wide.
Due to the fast relative velocities between the two spacecraft , the LRO operations team at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, needed exquisite timing in pointing LROC to the right place at the right time to catch a glimpse of Danuri, the Republic of Korea’s first spacecraft at the Moon. Danuri has been in lunar orbit since December 2022. Although LRO’s camera exposure time was very short, only 0.
At the first imaging opportunity, LRO was oriented down 43 degrees from its typical position of looking down at the lunar surface to capture Danuri from 3 miles, or 5 kilometers, above it.During the next encounter, LRO was closer to Danuri, about 2.5 miles, or 4 kilometers, and oriented 25 degrees toward it.For the final photo, LRO was reoriented by 60 degrees to catch a glimpse of Danuri when it was 5 miles, or 8 kilometers, below it.
Goddard Space Flight Center Lunar Reconnaissance Orbiter (LRO) Planetary Science Planetary Science Division Science Mission Directorate The Solar System
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