SS Birdseye
The SS Birdseye was a  space module constructed during the late 20th century that was designed to carry deceased, but cryonically preserved, Humans into Earth's orbit. 

Sometime after its launch, this module was carried from Earth's orbit into interstellar space, and by 2364, it was on a course to the Kazis binary system, where it would eventually be destroyed. Most of the cryonic crypts on the module had been damaged, so only three of the passengers were viable when the  discovered it in 2364: Clare Raymond, Sonny Clemonds, and Ralph Offenhouse. ()

Passengers

Background 
The Birdseye was identified only as "an ancient capsule" or "space module" in the episode. The  mentions that the name S.S. Birdseye was inscribed on the hull. The name “Birdseye” was a humorous reference to Birds Eye Frozen Foods and its founder, Clarence Birdseye, who invented the process of flash freezing food.

The topmost segment of the satellite was labeled with the registry or identification number 4077, one of the many references to M*A*S*H.

In an extended scene in the script of the episode, Worf states that, there was no way a satellite like this could have broken orbit and traveled the distance it had on its own power, even in thousands of years. They discover that the empty crypts had been forced opened and the occupants taken. To Data, this suggested that whoever took the satellite away from Earth's orbit probably learned all they could learn from those corpses, and left the others behind. 

Earth spacecraft
Memory Alpha articles named from supplementary resources