OTC Satellite Earth Station Carnarvon

Last updated

The 12.8m-wide Casshorn antenna, commissioned in October 1966, has interacting parabolic and hyperbolic reflectors in a characteristic "sugar scoop" form. It claims to be the only remaining example in the world. The larger 29.8m parabolic dish antenna was commissioned in late 1969. OTC Earth Station.jpg
The 12.8m-wide Casshorn antenna, commissioned in October 1966, has interacting parabolic and hyperbolic reflectors in a characteristic "sugar scoop" form. It claims to be the only remaining example in the world. The larger 29.8m parabolic dish antenna was commissioned in late 1969.

The OTC Satellite Earth Station Carnarvon, an Earth station in Australia, was established to meet the need for more reliable and higher quality communications for the Apollo program. NASA contracted Australia's Overseas Telecommunications Commission (OTC) "to provide an earth station near Carnarvon, Western Australia to link the NASA tracking station in that area to the control centre in the USA", [1] also contracting COMSAT to launch three Intelsat-2 communications satellites.

Contents

Television and NASA-assist operations

The "sugar scoop" antenna became operational on 29 October 1966 when Intelsat-2A, the first of the three satellites launched, gave OTC and the Australian Broadcasting Commission a brief chance to test satellite television communications as the satellite drifted to failure over the Indian Ocean. On 24 November 1966, test patterns for the first live telecasts from Australia to England were successful. The next day, a live BBC television broadcast from a studio in London featured interviews linking UK families with their British migrant relatives standing in Robinson Street, Carnarvon.

The "sugar scoop" became famous again on 21 July 1969, the day of the Apollo 11 Moon landing, relaying Neil Armstrong's first steps on the Moon from NASA's Honeysuckle Creek Tracking Station, Canberra, to Perth's TV audience via Moree earth station - the first live telecast into Western Australia.

The OTC station's eight years of communications support for the Carnarvon Tracking Station began on 4 February 1967, three weeks after Intelsat-2B was launched. A larger parabolic antenna was commissioned in late 1969 to upgrade the support for the later Apollo missions. OTC continued to provide communications support for NASA space programs until the NASA station closed early in 1975. Thereafter it tracked some NASA missions on its own account.

Contract tracking operations

During OTC's last years of operation in Carnarvon, multiple tracking contracts were completed including:

The dish in August 2009 CarnarvonOTCSatelliteEarthStation.jpg
The dish in August 2009

Decommissioning

The station was decommissioned in April 1987, but the site is still actively involved in solar scientific research, hosting a node of the Birmingham Solar Oscillations Network. In 2022 the OTC antenna was acquired by ThothX Australia, who are recommissioning it and refurbishing it into a deep space radar to provide space situational awareness on resident space objects in geostationary orbit. The new radar will extend Thothx's existing radar coverage over the Americas to the Indo-Pacific region. [3] [4]

"OTC Satellite Earth Station Carnarvon (fmr)" is a registered heritage site with the Heritage Council of Western Australia. [5] It has local, national and international cultural-heritage significance.

The Carnarvon Space and Technology Museum opened in 2012. [6]

24°52′09″S113°42′17″E / 24.86917°S 113.70472°E / -24.86917; 113.70472

Related Research Articles

<span class="mw-page-title-main">Communications satellite</span> Artificial satellite that relays radio signals

A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. Many communications satellites are in geostationary orbit 22,300 miles (35,900 km) above the equator, so that the satellite appears stationary at the same point in the sky; therefore the satellite dish antennas of ground stations can be aimed permanently at that spot and do not have to move to track the satellite. Others form satellite constellations in low Earth orbit, where antennas on the ground have to follow the position of the satellites and switch between satellites frequently.

<span class="mw-page-title-main">NASA Deep Space Network</span> Network of radio communication facilities run by NASA

The NASA Deep Space Network (DSN) is a worldwide network of American spacecraft communication ground segment facilities, located in the United States (California), Spain (Madrid), and Australia (Canberra), that supports NASA's interplanetary spacecraft missions. It also performs radio and radar astronomy observations for the exploration of the Solar System and the universe, and supports selected Earth-orbiting missions. DSN is part of the NASA Jet Propulsion Laboratory (JPL).

<span class="mw-page-title-main">STS-49</span> 1992 American crewed spaceflight to Intelsat 603 and maiden flight of Shuttle Endeavour

STS-49 was NASA's maiden flight of the Space Shuttle Endeavour, which launched on May 7, 1992. The primary goal of its nine-day mission was to retrieve an Intelsat VI satellite, Intelsat 603, which failed to leave Low Earth orbit two years before, attach it to a new upper stage, and relaunch it to its intended geosynchronous orbit. After several attempts, the capture was completed with the only three-person extravehicular activity (EVA) in space flight history. It would also stand until STS-102 in 2001 as the longest EVA ever undertaken.

<span class="mw-page-title-main">Goldstone Deep Space Communications Complex</span> US observatory near Barstow, California

The Goldstone Deep Space Communications Complex (GDSCC), commonly called the Goldstone Observatory, is a satellite ground station located in Fort Irwin in the U.S. state of California. Operated by NASA's Jet Propulsion Laboratory (JPL), its main purpose is to track and communicate with interplanetary space missions. It is named after Goldstone, California, a nearby gold-mining ghost town.

<span class="mw-page-title-main">New Norcia Station</span> Earth station in Western Australia

New Norcia Station is an ESTRACK Earth station in Australia for communication with spacecraft after launch, in low Earth orbit, in geostationary orbit and in deep space. It is located 10 kilometres (6.2 mi) south of the town of New Norcia, Western Australia. It was the first ESA deep space ground station, followed by Cebreros Station and Malargüe Station.

<span class="mw-page-title-main">JAXA</span> Japans national air and space agency

The Japan Aerospace Exploration Agency (JAXA) is the Japanese national air and space agency. Through the merger of three previously independent organizations, JAXA was formed on 1 October 2003. JAXA is responsible for research, technology development and launch of satellites into orbit, and is involved in many more advanced missions such as asteroid exploration and possible human exploration of the Moon. Its motto is One JAXA and its corporate slogan is Explore to Realize.

<span class="mw-page-title-main">Project Echo</span> First passive communications satellite experiment

Project Echo was the first passive communications satellite experiment. Each of the two American spacecraft, launched in 1960 and 1964, were metalized balloon satellites acting as passive reflectors of microwave signals. Communication signals were transmitted from one location on Earth and bounced off the surface of the satellite to another Earth location.

<span class="mw-page-title-main">Canberra Deep Space Communication Complex</span> Interplanetary radio communication station

The Canberra Deep Space Communication Complex (CDSCC) is a satellite communication station, part of the Deep Space Network of NASA's Jet Propulsion Laboratory (JPL), located at Tidbinbilla in the Australian Capital Territory. Opened in 1965, the complex was used for tracking the Apollo Lunar Module, and along with its two sister stations at Goldstone, California and Madrid, Spain is now used for tracking and communicating with NASA's spacecraft, particularly interplanetary missions. Its DSS-43 antenna is the only antenna on Earth that can send commands to Voyager 2. It is managed in Australia by the Commonwealth Scientific and Industrial Research Organisation (CSIRO) for NASA’s Space Communications and Navigation program (SCaN) at NASA Headquarters in Washington, D.C.

<span class="mw-page-title-main">Overseas Telecommunications Commission</span> Australian government enterprise

The Overseas Telecommunications Commission (OTC) was established by Australia in August 1946. It inherited facilities and resources from Amalgamated Wireless Australasia (AWA) and Cable & Wireless, and was charged with responsibility for all international telecommunications services into, through and out of Australia. In effect, all overseas telecommunications was nationalized. Australia was adopting a Commonwealth-wide policy that had been adopted at the Commonwealth conference in 1945. The main goal was to end the artificial routing of traffic to cable or wireless depending on private financial profits.

<span class="mw-page-title-main">Honeysuckle Creek Tracking Station</span> Former NASA earth station in Australia

Honeysuckle Creek Tracking Station was a NASA Earth station in Australia near Canberra, and was instrumental to the Apollo Program. The station was opened in 1967 and closed in 1981.

<span class="mw-page-title-main">Maspalomas Station</span> Radio antenna ground station in Spain

Maspalomas Station is an INTA-operated, ESTRACK radio antenna ground station for communication with spacecraft located at the southern area of Gran Canaria island, on the INTA campus. It is situated on the Montaña Blanca hill and is visible from the coastal resort of Meloneras, close to Maspalomas. It was originally established in the 1960s to support NASA's nascent human spaceflight program.

<span class="mw-page-title-main">Carnarvon Tracking Station</span>

The Carnarvon Tracking Station was an Earth tracking station in Australia, located 10 kilometres south of Carnarvon, Western Australia. It operated from 1963 until 1975, during which it supported the Gemini, Apollo and Skylab space programs.

<span class="mw-page-title-main">Outline of space exploration</span> Overview of and topical guide to space exploration

The following outline is provided as an overview of and topical guide to space exploration.

<span class="mw-page-title-main">Thales Alenia Space</span> Satellite manufacturer

Thales Alenia Space is a joint venture between the French technology corporation Thales Group (67%) and Italian defense conglomerate Leonardo (33%). The company is headquartered in Cannes, France.

<span class="mw-page-title-main">Halo orbit</span> Periodic, three-dimensional orbit

A halo orbit is a periodic, three-dimensional orbit near one of the L1, L2 or L3 Lagrange points in the three-body problem of orbital mechanics. Although a Lagrange point is just a point in empty space, its peculiar characteristic is that it can be orbited by a Lissajous orbit or by a halo orbit. These can be thought of as resulting from an interaction between the gravitational pull of the two planetary bodies and the Coriolis and centrifugal force on a spacecraft. Halo orbits exist in any three-body system, e.g., a Sun–Earth–orbiting satellite system or an Earth–Moon–orbiting satellite system. Continuous "families" of both northern and southern halo orbits exist at each Lagrange point. Because halo orbits tend to be unstable, station-keeping using thrusters may be required to keep a satellite on the orbit.

The Manned Space Flight Network was a set of tracking stations built to support the American Mercury, Gemini, Apollo, and Skylab space programs.

<span class="mw-page-title-main">NASA</span> American space and aeronautics agency

The National Aeronautics and Space Administration is an independent agency of the U.S. federal government responsible for the civil space program, aeronautics research, and space research. Established in 1958, NASA succeeded the National Advisory Committee for Aeronautics (NACA) to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968–1972 Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA currently supports the International Space Station and oversees the development of the Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, the Commercial Crew spacecraft, and the planned Lunar Gateway space station.

<span class="mw-page-title-main">Cooby Creek Tracking Station</span>

Cooby Creek Tracking Station, an Earth station in Australia, was located 22.5 kilometres (14 mi) north of Toowoomba, Queensland. Built near the Cooby Dam, the station was located in a radio quiet zone, where there were no powerlines and other sources of potential interference.

<span class="mw-page-title-main">History of the Deep Space Network</span> Observatory

The forerunner of the Deep Space Network was established in January 1958, when JPL, then under contract to the U.S. Army, deployed portable radio tracking stations in Nigeria, Singapore, and California to receive telemetry and plot the orbit of the Army-launched Explorer 1, the first successful U.S. satellite.

<span class="mw-page-title-main">Tropospheric Emissions: Monitoring of Pollution</span>

Tropospheric Emissions: Monitoring of Pollution (TEMPO) is a space-based spectrometer designed to measure air pollution across greater North America at a high resolution and on an hourly basis. The ultraviolet–visible spectrometer will provide hourly data on ozone, nitrogen dioxide, and formaldehyde in the atmosphere.

References

  1. The OTC Annual Report, 1965/1966, p.5.
  2. exotc.com, Giotto - OTC Involvement Archived 10 July 2011 at the Wayback Machine
  3. "A New Purpose for the OTC Dish is Out of This World". Shire of Carnarvon. 10 December 2022. Retrieved 14 December 2022.
  4. Peter de Kruijff (14 December 2022). "Carnarvon's historic NASA dish set for $10m refurbishment after decades of dormancy". Australian Broadcasting Corporation . Retrieved 14 December 2022.
  5. "Overseas Telecommunications Satellite Earth Station". InHerit. Heritage Council of Western Australia . Retrieved 21 January 2020.
  6. "Carnarvon Space & Technology Museum". 10 May 2012. Retrieved 14 December 2022.