Phoenix (spacecraft)
Entry, descent, and landing

For unknown reasons, the parachute was deployed about 7 seconds later than expected, leading to a landing position some 25–28 km (16–17 mi) east, near the edge of the predicted 99% landing ellipse. Mars Reconnaissance Orbiter 's High Resolution Imaging Science Experiment (HiRISE) camera photographed Phoenix suspended from its parachute during its descent through the Martian atmosphere. This marked the first time ever one spacecraft photographed another in the act of landing on a planet (the Moon not being a planet, but a satellite). The same camera also imaged Phoenix on the surface with enough resolution to distinguish the lander and its two solar cell arrays. Ground controllers used Doppler tracking data from Odyssey and Mars Reconnaissance Orbiter to determine the lander's precise location as 68°13′08″N 234°15′03″E / 68.218830°N 234.250778°E.
language:response_language[Spanish], oulipo:avoid_letter[t]