Hi Rick,
You have a 1986 Satellite Classic T-2150/51/or 52. We would need interior shots to determine the exact floorplan, but 2150 has two rear twin beds, 2151 has one rear twin bed/couch and a free standing chair, while the 2152 has stacked bunks in the back on one side and a single twin bed/couch on the other.
The other rare and cool thing your trailer has is the Classic package. This gave the trailer some slightly upgraded furniture (Flexsteel couch vs. foam pad), plus solid stained hardwood cabinet doors throughout in lieu of the cheap and lightweight hollow doors. This was one of the beginning steps of Sunline transitioning into a luxury brand, and trailers with it are pretty uncommon, especially on a trailer this small. Usually I only see it on 22' and up.