I know that this is a very basic point, but so far no-one - even within the Iridium company - can tell me how the satellites are being numbered: straight Iridium 1, 2, 3, 4, 5, etc or Iridium-1 1, 2, etc or what. Phillip Clark --------------------------------------------------------------------------- Phillip S Clark 25 Redfern Avenue Molniya Space Consultancy Whitton Compiler/Publisher, Worldwide Satellite Launches Middx TW4 5NA Editor, Jane's Space Directory U.K. ---------------------------------------------------------------------------