The Rosetta satellite has gotten such a good look at Comet 67P/Churyumov-Gerasimenko that its dimensions are now available to anyone with a 3-D printer.

According to BBC News, the comet-chasing spacecraft is just more than a month away from attaching itself to its target. In the meantime, the European Space Agency (ESA) has painstakingly mapped out the comet to determine where the best possible landing spot might be.

The internationally collaborative mission, though ESA-led, would be the first time a space agency has landed a satellite on a comet. Rosetta would then track 67P's journey into the solar system and toward our sun.

Rosetta will attempt its landing on Nov. 12, at which time it will make its closest and most scrutinizing analysis of the comet. The ESA has settled on "site J" for the landing attempt, which lies on the comet's head.

"As we have seen from recent close-up images, the comet is a beautiful but dramatic world - it is scientifically exciting, but its shape makes it operationally challenging," Stephan Ulamec, Philae lander manager at the German Aerospace Center, said in a NASA Jet Propulsion Lab (JPL) news release. "None of the candidate landing sites met all of the operational criteria at the 100-percent level, but Site J is clearly the best solution."

After Rosetta drifted through space on hibernation for a decade, it took its time rebooting and reaching its target. Upon closer inspection, mission managers learned that 67P is actually quite oddly shaped, resembling a duck almost.

Mission managers took their time picking out the ideal landing spot, but the satellite is so far from Earth that it will be impossible to control the Philae Lander remotely. They will have to rely on Rosetta's automated systems and then regain control if/when the lander successfully sinks in.

The ESA has waited patiently, but the time is now.

"There's no time to lose, but now that we're closer to the comet, continued science and mapping operations will help us improve the analysis of the primary and backup landing sites," Andrea Accomazzo, ESA Rosetta flight director, said in the release. "Of course, we cannot predict the activity of the comet between now and landing, and on landing day itself. A sudden increase in activity could affect the position of Rosetta in its orbit at the moment of deployment and in turn the exact location where Philae will land, and that's what makes this a risky operation."