Well, there have already been 2 spacecrafts who have traveled to Jupiter specifically (Galileo, and Juno) And out of these two satellites, only one has actually gone inside its atmosphere (Galileo) once inside, it survived for about 76ish minutes before being destroyed, the gravity completely destroyed it. But this only seems to have been because it entered the atmosphere. Usual, y the spacecraft would be orbiting normally around Jupiter, but if it were to increase or decrease its speed drastically, it might not survive