Single con trail got my eye and I observed a silvery aircraft with donuts on a rope. Below it where three black things that did not emit trail, as if escorting the craft heading NW according to my compass watch. It came from the ESE , contrail evaported quickly. Mild Santa Ana condition with clear skies. Extremely high altitude since the silvery aircraft was just within my vision where I could make it out. It was the three black Jacks in triangle formation escorting the advance Hypersonic aircraft. It would not surprise me if no else reported it since it was invisible to me when the con trail stopped right above me at Fishermans Cove. It covered the sky in about 90 seconds. It was descending more than likely since it was no longer producing the donuts on a rope contrail. These became obvious in shape as it almost flew overhead. Speculating it was headed to the restricted zone.