Viajante 7

The seemingly lifeless ship approached Earth which except for one individual had no interest in the object entering their solar system.
Ande had followed the object for years and knew it was coming into Earth solar system from another galaxy. His years of observation made him believe that the object was a spaceship
He turned down several very attractive job offers by various universities and took a position at NASA as a technician in the rocket control center sot that he could continue to monitor the object.
The closer it got the surer he was that it was indeed a spaceship. If it was a spaceship it was an out of control one or a derelict.
Ande got NASA leadership to look at the object in question. Its size was about that of the Empire State building. If it was a rocket it was huge.
The leaders decided that other than tracking the object nothing else was to be done.
He decided that he would take action into his own hands.
He was now glad that his boss had insisted that he learn and qualify on all the roles of those sitting in the rocket launch center. He knew how to launch the rocket that sat on the pad. He knew how to activate its systems now all he had to do was to set it up so he could do it all remotely..
Ande launched and intercepted the rocket and discovers an intelligent computer that calls itself Viajante 7
The hatch on the side of what looked like a space craft that had gone through a demolition derby verified that is was a spaceship.
The Viajante 7, Ande and Lesley, Ande's partner become a team that makes a trip back to the home planet Viajante.