This allowed them to find the body very near to its predicted position. In addition, historic photographic plates from the Palomar Sky Survey (1956–1958), the UK Schmidt Telescope (Australia), and the ESO Schmidt Telescope (Chile) confirmed the rediscovery.
The discovery was aided by their ability to pinpoint the body's location with high accuracy.  Furthermore, photographic plates from historical surveys conducted at Palomar, the UK Schmidt Telescope in Australia, and the ESO Schmidt Telescope in Chile corroborated the rediscovery.