|Earth Pre-Federation Database - S-55 Explorer 16|
|Orbit||750 km / 1181 km / 52,01 Grad|
|From Wikipedia - Die freie Enzyklopaedie|
|Explorer S-55 was an American Explorer Program satellite that was in service to NASA in the mid-20th century. An image of this satellite was
stored in the library computer of the USS Enterprise. This image was later retrieved by the Talosians during their survey of the library computer's contents in 2254.
TOS "The Cage"
The satellite Explorer S-55 was designed for the purpose of evaluating the effects of micrometeoroids on the hull of a spacecraft.
Text from the Memory Alpha, the free Star Trek reference