SSL, formerly Space Systems/Loral, LLC (SS/L), of
Palo Alto, California
Palo Alto ( ; Spanish language, Spanish for ) is a charter city in northwestern Santa Clara County, California, United States, in the San Francisco Bay Area, named after a Sequoia sempervirens, coastal redwood tree known as El Palo Alto.
Th ...
, is a wholly owned manufacturing
subsidiary
A subsidiary, subsidiary company, or daughter company is a company (law), company completely or partially owned or controlled by another company, called the parent company or holding company, which has legal and financial control over the subsidia ...
of
Maxar Technologies.
SSL designs and builds satellites and space systems for a wide variety of government and commercial customers. Its products include high-powered direct-to-home broadcast satellites, commercial weather satellites, digital audio radio satellites, Earth observation satellites and spot-beam satellites for data networking applications.
History

The company was founded as the Western Development Laboratories (WDL) of
Philco
Philco (an acronym for Philadelphia Battery Company) is an American electronics industry, electronics manufacturer headquartered in Philadelphia. Philco was a pioneer in battery, radio, and television production. In 1961, the company was purchase ...
in 1957, which became Philco-Ford in 1966. The Space Systems Division was made a stand-alone Division of
Aeronutronic/
Ford Aerospace and was acquired by
Loral Corp. in 1990 for $715 million from
Ford Motor Company
Ford Motor Company (commonly known as Ford) is an American multinational corporation, multinational automobile manufacturer headquartered in Dearborn, Michigan, United States. It was founded by Henry Ford and incorporated on June 16, 1903. T ...
, and renamed Space Systems/Loral. All other divisions of Ford Aerospace including Western Development Labs located in
San Jose were also acquired by Loral at that time.
In 2012 Space Systems/Loral was acquired by the Canadian aerospace company MacDonald Dettwiler (now
MDA) for $875 million. MDA was renamed as
Maxar Technologies in 2017.
SSL's major competitors are
Boeing Satellite Systems,
Lockheed Martin
The Lockheed Martin Corporation is an American Arms industry, defense and aerospace manufacturer with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta on March 15, 1995. It is headquartered in North ...
,
Thales Alenia Space
Thales Alenia Space () is a joint venture between the French technology corporation Thales Group (67%) and Italian defense conglomerate Leonardo (company), Leonardo (33%). The company is headquartered in Cannes, France.
It provides space-based ...
,
Airbus Defence and Space and
JSC Information Satellite Systems.
Projects
In 1960, the
Courier 1B, built by then Philco, became the world's first active repeater satellite.
SSL has recently pioneered research in
electric propulsion systems,
lithium-ion power systems and the use of advanced composites on commercial satellites, which permit significant increases in the size and power of a satellite's payload and extends the satellite's on-orbit lifetime. SSL also has developed new service-enhancing technologies such as super power systems for direct-to-user applications and ground-based beam forming, a technology that uses both satellite and terrestrial assets to provide mobile users with increased coverage and capacity capabilities.
, there are 99 SSL-built geosynchronous satellites operating in orbit.
EchoStar XVI Satellite
The EchoStar XVI was launched in 2012 aboard the Proton Breeze M vehicle from the
Baikonur Space Center in Kazakhstan.
1300 Series Platform
SSL manufactures satellites based on its
SSL 1300 series platform (previously
LS-1300,
FS-1300) in Palo Alto. Satellites in the series include
Intelsat-40,
Eutelsat-7C,
SiriusXM-9 and
Telstar-19V. there were 99 satellites based on the 1300 series platform on orbit, with 4 others under construction.
The company designed and built
AsiaSat 8, which was launched on 5 August 2014, and
AsiaSat 6, which went into orbit on 7 September 2014. The two satellite launches cost
AsiaSat
Asia Satellite Telecommunications Company Limited (AsiaSat) is a Hong Kong–based commercial operator of communications satellites founded in 1988. It is a wholly-owned subsidiary of Asia Satellite Telecommunications Holdings Limited (AsiaSat ...
$110 million. The
satellite
A satellite or an artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication relay, weather forecasting, navigation ( GPS), broadcasting, scient ...
s were expected to last 15 years, and contain high-powered C-band transponders providing
video
Video is an Electronics, electronic medium for the recording, copying, playback, broadcasting, and display of moving picture, moving image, visual Media (communication), media. Video was first developed for mechanical television systems, whi ...
and
broadband
In telecommunications, broadband or high speed is the wide-bandwidth (signal processing), bandwidth data transmission that exploits signals at a wide spread of frequencies or several different simultaneous frequencies, and is used in fast Inter ...
services to the
Asia-Pacific region.
COTS proposal
SSL and
Constellation Services International have proposed a reusable
space tug
''Space Tug'' is a young adult fiction, young adult science fiction novel by author Murray Leinster. It was published in 1953 in literature, 1953 by Shasta Publishers in an edition of 5,000 copies. It is the second novel in the author's Joe K ...
based on the 1300 platform and a pressure-fed, low-cost
Aquarius Launch Vehicle. The tug would be used to bring supplies to the
International Space Station
The International Space Station (ISS) is a large space station that was Assembly of the International Space Station, assembled and is maintained in low Earth orbit by a collaboration of five space agencies and their contractors: NASA (United ...
as part of the
Commercial Orbital Transportation Services
Commercial Orbital Transportation Services (COTS) was a NASA program to spur the development of Private spaceflight, private spacecraft and launch vehicles for deliveries to the International Space Station (ISS). Launched in 2006, COTS successful ...
(COTS) program.
NASA eventually decided to pursue another proposal for this project. SSL, however, continued to provide Battery Orbital Replacement Units (ORUs), Battery Charge Discharge Units (BCDUs), and Sequential Shunt Units (SSUs) for the ISS.
LADEE Mission
SSL designed and delivered a
propulsion system based on their 1300 platform for the
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...
LADEE mission. On April 17, 2014, between 9:30 p.m and 10:22 p.m. PDT, after successfully completing its goal to collect
lunar dust and study the
Moon
The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar ...
's atmosphere,
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...
's
Lunar Atmosphere and Dust Environment Explorer (
LADEE)
spacecraft
A spacecraft is a vehicle that is designed spaceflight, to fly and operate in outer space. Spacecraft are used for a variety of purposes, including Telecommunications, communications, Earth observation satellite, Earth observation, Weather s ...
successfully completed a planned de-
orbit
In celestial mechanics, an orbit (also known as orbital revolution) is the curved trajectory of an object such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of an artificial satellite around an ...
, bringing an end to the mission to study the
structure
A structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. Material structures include man-made objects such as buildings and machines and natural objects such as ...
and
composition of the thin
lunar atmosphere.
Robotic Servicing of Geosynchronous Satellites
In June 2017, SSL was awarded the contract to design and build the satellite servicing spacecraft vehicle for the US
Defense Advanced Research Projects Agency
The Defense Advanced Research Projects Agency (DARPA) is a research and development agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. Originally known as the Adva ...
(DARPA)’s
Robotic Servicing of Geosynchronous Satellites (RSGS) program, which is designed to inspect, repair, and augment geosynchronous satellites and plans to include a refueling payload to extend the life of satellites that are low on propellant. SSL joined the Naval Research Laboratory, the
Charles Draper Laboratory and Maxar's robotics divisions in Brampton, Ontario and Pasadena to develop the servicer. The servicer is designed to refuel commercial satellites, and global satellite operator
SES is the first commercial customer to sign up to use the services for a satellite life extension mission.
In January 2019, SSL decided to abandon its participation in the program because of financial difficulties. Continued participation in the program required the company to fund the cost of the development by more than the typical 33%.
Psyche
The Psyche mission to asteroid
16 Psyche spacecraft's solar-electric propulsion chassis was built by Maxar, and launched on October 13, 2023.
WorldView Legion
SSL designed and built six WorldView Legion imaging satellites, which were launched into low earth orbit between May, 2024 and February, 2025
See also
*
Aerospace manufacturer
An aerospace manufacturer is a company or individual involved in the various aspects of Aircraft design process, designing, building, testing, selling, and maintaining aircraft, aircraft parts, missiles, rockets, or spacecraft. Aerospace is a hi ...
*
List of spacecraft manufacturers
*
Aeronutronic
*
References
External links
SSL company website*
{{DEFAULTSORT:SSL
Aerospace companies of the United States
Spacecraft manufacturers
Manufacturing companies based in the San Francisco Bay Area
Technology companies based in the San Francisco Bay Area
Companies based in Palo Alto, California
Manufacturing companies established in 1990
Technology companies established in 1990
1990 establishments in California
Loral Space & Communications
2012 mergers and acquisitions