The Enhanced Polar System (EPS) was declared operational and handed over to operators at the 4th Space Operations Squadron at Schriever Air Force Base, Colorado, following months of on-orbit check out and the successful completion of a Multiservice Operational Test and Evaluation (MOT&E).

EPS is a polar adjunct to the Advanced Extreme High Frequency (AEHF) system providing Military Satellite Communications coverage at latitudes of 65 degrees north and above.

During the MOT&E, a number of criteria and metrics were evaluated including overall system performance. Once the evaluation was completed, the Air Force Operational Test and Evaluation Command (AFOTEC) with support from the Navy and the Director of Operational Test and Evaluation (DOT&E) looked at whether there were any deficiencies in system performance and any liens against system performance that the program office needed to correct.

For EPS, both the AFOTEC and the DOT&E reports concluded that EPS was operationally effective and suitable with no identified deficiencies or liens, rare for a system of this type.

On Sept. 19, 4th SOPS officially took command of EPS. A ceremony was held on Sept. 25 with Lt. Col. Kenny Smith, EPS materiel leader and Lt. Col. Tim Ryan, 4th SOPS commander presiding. To commemorate the event a ceremonial "Arctic" key was passed from SMC to 4th SOPS to mark transfer of the satellite's operational control.

EPS provides coverage north of AEHF's coverage area. It also makes use of an AEHF Extended Data Rate Wave Form and provides 24/7 protected communications for warfighters operating in the polar region. Compared to legacy systems, EPS provides higher capacity, higher throughput data rates, and enhanced interconnectivity between the EPS satellites and mid-latitude users through the EPS Gateway at Clear Air Force Station, Alaska.

Due to EPS's Highly Elliptical Orbit, one payload is providing coverage over the polar region while the other is swinging around the earth and out of view of the ground station. The recent milestone marks the availability of both EPS payloads for the warfighter to use.

Air Force Space Command's Space and Missile Systems Center, located at Los Angeles Air Force Base in El Segundo, California, is the U.S. Air Force's Center of Excellence for acquiring and developing military space systems.

Its portfolio includes the Global Positioning System, military satellite communications, defense meteorological satellites, space launch, range systems, satellite control networks, space-based infrared systems and space situational awareness capabilities.

Related Links
United States Space Command
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