Orbital is the first album from Orbital, released in 1991. It is often referred to as the "Green Album", to differentiate it from the band's second album, titled Orbital 2 (known as the "Brown Album"), which bears only the band's name on the cover.The original United Kingdom release includes live versions of "Chime" and "Midnight". Orbital was released in 1992 with a significantly different cover and tracklist in the United States, incorporating remixes and non-album singles. All tracks on the U.S. release had also been remastered using the Bedini Audio Spectral Enhancer (B.A.S.E.) to enhance their stereophonic effects.