Factual error: In many scenes in space, the stars are shown twinkling or flickering. This occurs only when seen through an atmosphere.
Suggested correction: Stars also twinkle or flicker due to intervening interstellar gas clouds, so this is no error.
Factual error: At one point, the rotating solar power panels on IKON slam into the Shuttle, wrapping around the nose. That's bad for the astronauts! The tiles all over the Shuttle are used to absorb the tremendous heat of reentry. They are also very brittle. An impact like that would have torn them off by the hundreds, making reentry impossible.
Suggested correction: The nose was Reinforced Carbon Carbon, or RCC, like the leading edge wing. The tiles were further back.
Factual error: The shuttle re-entry being nose-down could never happen. You had to hit the atmosphere nose-up so the ceramic tiles took the heat.
Suggested correction: Not totally true, the nose and leading edge wing were RCC and could take 2300°F, just like the tiles on the underside.
Factual error: The Russian says that the missiles in IKON are locked onto American cities. The implication is that those cities will be destroyed if Eastwood screws up. Actually, since the orbit has decayed from geosynchronous (an altitude of roughly 22,000 miles) to low Earth orbit at 1000 miles, I don't think the missile guidance systems would get a chance to work. If the missiles were launched, they would simply shoot down toward the Earth and blow up wherever they happened to be. So, prayers to anyone unlucky enough to be directly below those missles.
Suggested correction: Entry states an implication. This may have been inferred by this one viewer, but the movie never stated any such thing, so therefore it cannot be considered an error.