USA 274

Also called NROL 79 and NOSS 3-8?

General

Designation	42058 / 17011A
Launch date	1 Mar 2017
Country of origin	United States
Mission	Military: Naval ocean surveillance
Perigee/Apogee	1010 x 1200 km ?
Inclination	63.4°?
Period
Launch vehicle	Atlas 5 #70

Probably an Advanced SB-WASS (see NOSS).
May in fact be 2 satellites.

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