Go to the K1 Logistics Lost Sector at the top of Archer's Line on the Moon. Proceed through the Lost Sector until you reach the end arena with the shielded Servitor in the middle. As you enter the arena, look to your right to see a one-story building with some debris on the roof. Jump on top of it and interact with the crashed satellite to get the "Orbital Cartographer" Legendary emblem, which resembles the old NASA logo.
Destiny 2: Shadowkeep