The images suggest that the object has a long axis of about 130 feet (40 meters) and according to BPEarthWatch it is not an asteroid but more likely an Unidentified Space Craft.
Each of the 72 frames required 320 seconds of data collection by the Goldstone radar.
The observations were made as the object was moving away from Earth.
The object's distance from the radar dish increased from 74,000 miles (120,000 kilometers) to 195,000 miles (314,000 kilometers).
The resolution is 13 feet (four meters) per pixel. The images span close to eight hours and clearly show an elongated object undergoing roughly one full rotation.
The radar observations were led by scientists Lance Benner and Marina Brozovic of NASA's Jet Propulsion Laboratory, Pasadena, California. Additional Goldstone radar observations are scheduled on February 18, 19 and 20.
If it turns out that the object is indeed a spacecraft, we may wonder whether it is a man-made spacecraft of the secret space program or an alien spacecraft.