We found one dictionary that defines the word observer target distance:

General (1 matching dictionary)

1. observer-target distance: TheFreeDictionary.com

▸ Words similar to observer target distance ▸ Usage examples for observer target distance ▸ Idioms related to observer target distance ▸ Wikipedia articles (New!) ▸ Words that often appear near observer target distance ▸ Rhymes of observer target distance ▸ Invented words related to observer target distance