Te appears to be a gas giant orbiting the star Svir in Covenant-controlled territory, primarily composed of nitrogen, helium, and methane. However, it actually has solid surface, which is blocked from orbital view by its gaseous clouds. It is known that there actually is a surface on Te, because in the Taming of the Hunters it is said that the Mgalekgolo won nearly every ground battle against the Sangheili. It is orbited by two small satellites (moons), Uhtua and Rantu, and is also orbited by a ring of debris which is inhabited by the Lekgolo. All together, there are 25 known satellites orbiting Te: 2 named, and 23 unnamed. The planet was actually transformed into a gaseous state as a byproduct of the Lekgolo eating through the Forerunner relics, most of which now form the ring of debris.
It has a temperature range of -20 C to 95 C (-4F to 203F) and is a quite large, rocky planet. The government on Te is Socialism/Religious hegemony client. This planet is also known to have fabulously rich heavy metal deposits and rare metal mines.
It can be assumed that there were once many Forerunner artifacts or ships on the planet as many colonies of Mgalekgolo have been known to feast purely on the forerunner alloy, it also had an orbiting forerunner installation at some point before the Taming of the Hunters.