PARIS โ€” All six Orbcomm machine-to-machine messaging satellites launched July 14 aboard a SpaceX Falcon 9 rocket have deployed their solar arrays and antennas and begun communicating with Orbcommโ€™s gateway Earth stations, satellite prime contractor Sierra Nevada Corp. said July 17.

Louisville, Colorado-based Sierra Nevada Space Systems said full satellite checkout would continue for several weeks before turning them over to Rochelle Park, New Jersey-based Orbcomm.

Boeing Space and Intelligence Systems of El Segundo, California, built the satellitesโ€™ payloads. The full second-generation Orbcomm constellation includes 17 satellites. The remaining 11 are scheduled for launch, also by Space Exploration Technologies Corp.โ€™s Falcon 9, at an undetermined date late this year or early in 2015.

The Orbcomm contract represented a breakthrough for Sierra Nevada as a satellite prime contractor, and for the companyโ€™s SN-100 satellite platform.

Peter B. de Selding was the Paris bureau chief for SpaceNews.