Spaceflight Insider

News Archive / Tagged: MUOS-4

  • U.S. Navy accepts fourth MUOS satellite

    Jason RhianDecember 8th, 2015

    CAPE CANAVERAL, Fla. — Three months after the launch of the U.S. Navy's Mobile User Objective System 4 (MUOS-4) satellite atop a United Launch Alliance Atlas V 551 rocket, it was announced on Nov. 30 that the Navy had accepted the Lockheed Martin-produced spacecraft after the successful completion of on-orbit testing.

  • Fantastic Four: Most powerful version of Atlas V sends MUOS-4 aloft

    Jason RhianSeptember 2nd, 2015

    CAPE CANAVERAL, Fla — Residents along Florida's Space Coast were provided with a special 'wake up call' this morning, when at 6:07 a.m. EDT at the very opening of a launch window that extended some 44 minutes. As is so often the case with Colorado-based United Launch Alliance (ULA ) – they did not need it.

  • ULA prepares Atlas V 551 for MUOS-4 mission after Erika delays flight

    Florida TechAugust 31st, 2015

    CAPE CANAVERAL, Fla — On Sept. 2, 2015, ULA is planning to launch the fourth of Lockheed Martin’s Mobile User Objective System (MUOS-4) satellites. The payload will be delivered to geosynchronous orbit by an Atlas V 551 booster. The flight was delayed from taking aloft on August 31, thanks to Tropical Storm Erika.

  • Tropical Storm Erika forces minimum 48 hour delay of MUOS-4 mission

    Jason RhianAugust 28th, 2015

    CAPE CANAVERAL, Fla -- The flight of a United Launch Alliance (ULA ) Atlas V 551 rocket and its payload of the fourth satellite of the Mobile User Objective System - has been delayed due to what is currently Tropical Storm Erica. At present, the mission is not expected to take to the skies any earlier than Sept. 2.

  • Navy’s MUOS-4 satellite encapsulated in PLF for flight

    Joe LatrellAugust 15th, 2015

    The MUOS-4 (Mobile User Objective System) secure communications satellite built for the U.S. Navy has been enclosed in its protective fairing in preparation for launch on August 31. Lockheed Martin constructed MUOS-4 for the U.S. Navy as part of their secure communications system for mobile military forces.

  • MUOS-4 spacecraft delivered to Cape Canaveral in preparation for August launch

    Jason RhianJune 29th, 2015

    Lockheed Martin and the United States Navy delivered the fourth of the Navy’s Mobile User Objective System (MUOS ) satellites to Cape Canaveral Air Force Station in Florida on Sunday, June 28. With the arrival of MUOS-4, the next phase of the mission is for Colorado-based United Launch Alliance (ULA ) to loft the communications satellite atop an Atlas […]