No. Let me Google it. Wait, Duck Duck Go it. So, Noumenon is like a contrast to Phenomenon which is directly observable. Noumenon is indirectly inferred and involves like intellectual perception that is like engineered in the mind as opposed to simply observed through the general five senses of seeing, hearing, smelling, tasting, feeling, touching, sensing.

In a strictly textbook sense, NOUMENON is the only "thing" that can be accurately described as "objective".