source: It was the first asteroid dlscpvered by a spacecraft.
target: It was the first asteroid found by a spacecraft.
references: It was the first asteroid found by a spacecraft. It was the first asteroid to be discovered by a spacecraft. It was the first asteroid to be discovered by a spacecraft. It was the before planetoid to be found by a spacecraft. The first asteroid was discovered by a spacecraft. It was the first asteroid discovered by a spacecraft. the first asteroid who discovered the spacecraft.