Beams cover oceans and major landmasses

As Inmarsat was founded as a maritime communications operator, our first wholly-owned constellations – the Inmarsat-2 and Inmarsat-3 series – are located above the world’s sea-lanes to form four ocean regions:

  • Atlantic Ocean Region West (AOR-W), at 54 degrees West
  • Atlantic Ocean Region East (AOR-E), at 15.5 degrees West
  • Indian Ocean Region (IOR), at 64 degrees East
  • Pacific Ocean Region (POR), at 178 degrees East.

I-3 satellite coverage map

 

Following the full deployment of the Inmarsat-4 (I-4) satellite constellation in 2009, a further three satellite regions were created over the Earth’s major landmasses. They are:

  • I-4 Americas, at 98 degrees West
  • I-4 EMEA (Europe, Middle East and Africa), at 25 degrees East
  • I-4 Asia-Pacific, at 143.5 degrees East.

From November 2013, I-4 EMEA is covered by Alphasat (I-4A F4) with a new footprint, as illustrated in the map below.I-4 satellite coverage

I-4 satellite coverage, including Alphasat I-4A F4