The Javelin Program

Aspen Greaves was expecting to wake up from chronostasis in orbit around their new planet, to be checked over by medical staff on a crowded ship, and to be sent straight down to their new, permanent home. They were not expecting to wake up alone on a damaged ship in the dark, five years away from their destination, with only the universe's least helpful AI to advise them on what went wrong and how to fix it. But with almost five thousand sleeping colonists in their care and the crew mysteriously dead, Aspen needs to figure out what went wrong and how to actually make it to Hylara.

If only they knew anything at all about being an astronaut.