Unidentified flying object observed near Brazilian coast

Summary

This document describes a communication between an air traffic controller and a Varig airline pilot in August 2003. The pilot reports the presence of an unidentified object flying parallel to his aircraft near the Brazilian coast. The object changes color between white and red and has no defined shape. The controller tries to obtain more details about the object's location, distance, and characteristics, but cannot identify it with available systems. The pilot confirms the object remains in the same relative position and does not appear to be a conventional aircraft.