Orbitals are mission bossses from Final Fantasy XI: Rise of the Zilart. They assist Eald'narche in the first phase of the battlefield The Celestial Nexus. They have very low HP, but are summoned again almost instantly if destroyed. Up to two Orbitals may assist Eald'narche at any time.
Since the Orbitals can be slept, they are best ignored by the party whilst they concentrate on destroying the Exoplates and defeating Eald'narche.