WGS F5 (USA 243)

WGS F5, catalogued by the United States Space Surveillance Network under NORAD ID 39168 and carrying the international designator 2013-024A, is an American military communications satellite operated by the United States Air Force. Launched in May 2013, it represents the fifth spacecraft deployed under the Wideband Global SATCOM (WGS) program and the second to fly in the upgraded Block II configuration. The satellite occupies a geostationary orbit and remains operational as of the most recent catalog records, continuing to provide high-capacity communications services to military users across a wide geographic arc.

Mission and Purpose

The Wideband Global SATCOM program was established to give the United States military a dedicated, high-throughput satellite communications architecture capable of supporting the full range of modern defense requirements — from command-and-control links to intelligence data relay and beyond. Prior military satellite communications systems, though effective for their era, were increasingly strained by the bandwidth demands of networked warfare, unmanned systems, and high-definition video downlinks. The WGS constellation was designed to address that shortfall by providing dramatically greater capacity than its predecessors.

WGS F5, also referred to publicly as USA-243, entered this program as its fifth operational node. As part of the Block II series, it incorporated design refinements relative to the original Block I satellites, though the specific technical distinctions between the blocks are not fully disclosed in publicly available documentation. In general terms, the WGS satellites are understood to provide X-band and Ka-band communications capability, supporting a diverse range of ground terminals operated by the United States and its allies. The constellation as a whole is designed so that the individual satellites can be positioned at different orbital slots to maximize coverage across regions of strategic interest, including the Pacific, the Middle East, Europe, and beyond.

The precise mission configuration of WGS F5 — including its assigned orbital slot above the equator, the specific theaters it is tasked to serve, and its current operational status — is not publicly recorded in the satellite catalog. What is established is that the satellite was designed and launched specifically to augment military communications capacity and that it was built by Boeing, a long-standing contractor for the WGS program.

Orbit and Tracking

WGS F5 occupies a geostationary orbit, one of the most operationally significant orbital regimes in the entire space environment. Geostationary satellites circle the Earth at an altitude close to 35,786 kilometers above the equator, moving at a speed that exactly matches the planet's own rotation. From the ground, such a satellite appears to hover motionless at a fixed point in the sky — a property that makes geostationary orbit uniquely suited to communications relay, where uninterrupted line-of-sight to fixed ground terminals is essential.

The current catalog data for WGS F5 reflects this profile precisely. Its apogee is recorded at 35,795 kilometers and its perigee at 35,793 kilometers, a difference of just two kilometers — indicating an essentially circular orbit with negligible eccentricity. Its inclination is recorded as 0.0 degrees, confirming that the satellite's orbital plane is aligned almost perfectly with the equatorial plane. Its orbital period is 1,436.1 minutes, equivalent to just over 23 hours and 56 minutes, which is consistent with the sidereal day period that defines true geostationary behavior.

This extremely tight orbital band is itself a carefully managed international resource. The geostationary belt is shared by hundreds of active satellites operated by governments and commercial entities worldwide, and placement within it requires coordination through international frameworks. Military satellites like WGS F5 occupy slots assigned to the United States but are generally not publicly declared to a specific longitude for operational security reasons.

From a tracking perspective, WGS F5 presents the same observational characteristics as any geostationary satellite. Because it does not move against the starfield from the perspective of an observer on the ground, it cannot be tracked in the way that low Earth orbit satellites are — it does not rise, cross the sky, and set in a predictable pass. Instead, it sits at a fixed apparent position, moving only in the sense that Earth's diurnal motion will carry it below the horizon for observers at high latitudes. For most users in mid-latitudes and tropical regions, a geostationary satellite is permanently accessible at a fixed elevation angle.

Design and Operator

WGS F5 was manufactured by Boeing, which has served as the prime contractor for the entire WGS satellite series. The satellite is based on Boeing's BSS-702 platform, a proven commercial bus that has been adapted for military use across several generations of the WGS program. The 702 platform is noted in the industry for its use of xenon-ion propulsion for on-orbit station-keeping, its dual-sided solar array architecture, and its relatively high power generation capability — features that support the large communications payloads these satellites are required to carry. No mass figure for WGS F5 is recorded in the publicly available catalog entry for this object.

The operator of record is the United States Air Force, which at the time of launch held responsibility for military satellite communications programs of this nature. In subsequent years, Space Force reorganization has redistributed some of these operational responsibilities, but the WGS program itself has continued under the broad umbrella of American national security space operations. Day-to-day management of WGS satellite communications is handled through the Air Force Satellite Control Network and associated military command structures, with ground terminals distributed globally to ensure continuous connectivity.

The WGS program has been notable for its international character as well. Several allied nations — including Australia, Canada, Denmark, Luxembourg, the Netherlands, and New Zealand among others — have contributed funding or resources in exchange for access to WGS communications capacity, making it one of the more collaborative military satellite programs in history. While WGS F5 itself is an American satellite and a U.S. Air Force asset, its communications services are available to allied military users in accordance with these partnership agreements.

Significance and Legacy

The launch of WGS F5 on May 24, 2013 marked a continuation of the steady build-out of the WGS constellation during a period of high operational tempo for U.S. and allied forces. At the time of its deployment, the geostationary communications infrastructure supporting military operations was under considerable pressure from the proliferation of high-bandwidth users — particularly unmanned aerial systems that rely on continuous satellite links for both command and sensor data relay. Each additional WGS satellite added capacity to this stressed system, and WGS F5 as the fifth operational node represented a meaningful increment in overall capability.

As a Block II satellite, WGS F5 also demonstrated the maturation of the program. The Block II design incorporated lessons learned from the earlier operational satellites, offering refinements that were intended to extend capability and reliability. While the details of those refinements are not publicly specified, the pattern of incremental improvement across successive blocks is consistent with how major satellite programs typically evolve over years of development and operational experience.

WGS F5 remains in orbit as of the current catalog data, with no decay or reentry date recorded. Geostationary satellites of this type are designed for operational lifespans measured in decades, and the absence of any deorbit record is consistent with the satellite continuing to function within its intended service life. Whether it remains actively operational, has been placed in a reduced-activity mode, or is maintained as a reserve asset is not publicly documented in the catalog entry. What is clear is that the satellite physically remains where it was placed — in the geostationary belt, effectively stationary above the equator — and continues to be tracked by the Space Surveillance Network under its assigned designations.

The broader WGS constellation of which this satellite is a part has become a foundational layer of American and allied military communications infrastructure. Its high-throughput design, multi-band capability, and geographically distributed orbital coverage have made it central to the communications architecture that underpins modern joint and combined operations. WGS F5 occupies a specific and permanent node within that architecture, and its continued presence in the catalog reflects its enduring role in that larger system. For historians and analysts of national security space, the WGS program — and WGS F5 within it — represents a pivotal chapter in the evolution of military satellite communications from narrowband legacy systems to the broadband, networked architectures that define contemporary defense operations.