WRESAT

Last updated
WRESAT
Redstone Sparta CC-2029 1.jpg
Redstone Sparta rocket with WRESAT mounted on top (the black cone), c. November, 1967
COSPAR ID 1967-118A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 03054 OOjs UI icon edit-ltr-progressive.svg
Mission durationData: 73 orbits
Total: 642 orbits
Total: ~42 days
Spacecraft properties
Manufacturer Weapons Research Establishment
Launch mass45 kilograms (99 lb)
72.5 kilograms (160 lb) (with the third stage) [1]
Start of mission
Launch date29 November 1967, 04:49 (1967-11-29UTC04:49)  UTC [2]
Rocket Sparta
Launch site Woomera LA-8
End of mission
Decay date10 January 1968
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee altitude 169 km [3]
Apogee altitude 1245 km [3]
Inclination 83.3°
Period 99 minutes [3]

WRESAT, or Weapons Research Establishment Satellite, was Australia's first satellite. It was named after its designer, the Weapons Research Establishment. WRESAT was launched on 29 November 1967 using a modified American Redstone rocket with two upper stages, known as a Sparta, from the Woomera Test Range in South Australia. The Sparta (left over from the joint Australian-US-UK Sparta program) was donated by the United States.

Contents

After this launch, Australia became the seventh nation to have a satellite and the third nation to launch from its own territory, [4] after the Soviet Union and the United States (the UK's, Canada's and Italy's satellites were also launched on American rockets, unlike the French Astérix, which launched on an indigenous rocket out of Algeria [5] ).

WRESAT was a cone-shaped satellite weighing 45 kilograms (99 lb), with a length of 1.59 m (5 ft 3 in) and a diameter of 0.76 m (2 ft 6 in). It remained connected to the rocket's third stage and had an overall length of 2.17 m (7 ft 1 in). It carried upper atmospheric radiation measurement experiments designed in the University of Adelaide. The first stage fell into the Simpson Desert, but the second's reentry over the Gulf of Carpentaria was unobserved. [6]

WRESAT, which bore an early forward-bounding kangaroo logo, operated in a nearly polar orbit and reentered the atmosphere over the Atlantic Ocean on 10 January 1968 after 642 revolutions. The battery-operated satellite successfully sent back data to NASA and Australian ground tracking stations during its first 73 revolutions of the Earth. [7]

Today, this achievement is rarely remembered in Australian textbooks or collections of major 20th century news stories and so remains largely unknown to the general Australian populace.[ citation needed ]

See also

Related Research Articles

<span class="mw-page-title-main">Blue Streak (missile)</span> British ballistic missile

The de Havilland Propellers Blue Streak was a British Intermediate-range ballistic missile (IRBM), and later the first stage of the Europa satellite launch vehicle. Blue Streak was cancelled without entering full production.

<span class="mw-page-title-main">Jupiter-C</span> Part of the Redstone rocket family

The Jupiter-C was an American research and development vehicle developed from the Jupiter-A. Jupiter-C was used for three uncrewed sub-orbital spaceflights in 1956 and 1957 to test re-entry nosecones that were later to be deployed on the more advanced PGM-19 Jupiter mobile missile. The recovered nosecone was displayed in the Oval Office as part of President Dwight D. Eisenhower's televised speech on November 7, 1957.

<span class="mw-page-title-main">Juno I</span> Four-stage American expendable launch vehicle (1958–59)

The Juno I was a four-stage American space launch vehicle, used to launch lightweight payloads into low Earth orbit. The launch vehicle was used between January 1958 to December 1959. The launch vehicle is a member of the Redstone launch vehicle family, and was derived from the Jupiter-C sounding rocket. It is commonly confused with the Juno II launch vehicle, which was derived from the PGM-19 Jupiter medium-range ballistic missile. In 1958, a Juno I launch vehicle was used to launch America's first satellite, Explorer 1.

<span class="mw-page-title-main">Europa (rocket)</span> Rocket family

The Europa rocket was an early expendable launch system of the European Launcher Development Organisation (ELDO), which was the precursor to the European Space Agency (ESA). It was developed with the aim to delivering space access technology, and more specifically to facilitate the deployment of European-wide telecommunication and meteorological satellites into orbit.

<span class="mw-page-title-main">Marshall Space Flight Center</span> Rocketry and spacecraft propulsion research center

Marshall Space Flight Center, located in Redstone Arsenal, Alabama, is the U.S. government's civilian rocketry and spacecraft propulsion research center. As the largest NASA center, MSFC's first mission was developing the Saturn launch vehicles for the Apollo program. Marshall has been the lead center for the Space Shuttle main propulsion and external tank; payloads and related crew training; International Space Station (ISS) design and assembly; computers, networks, and information management; and the Space Launch System. Located on the Redstone Arsenal near Huntsville, MSFC is named in honor of General of the Army George C. Marshall.

<span class="mw-page-title-main">Army Ballistic Missile Agency</span> United States Army agency (1956–61)

The Army Ballistic Missile Agency (ABMA) was formed to develop the U.S. Army's first large ballistic missile. The agency was established at Redstone Arsenal on 1 February 1956, and commanded by Major General John B. Medaris with Wernher von Braun as technical director.

<span class="mw-page-title-main">PGM-11 Redstone</span> American short-range ballistic missile

The PGM-11 Redstone was the first large American ballistic missile. A short-range ballistic missile (SRBM), it was in active service with the United States Army in West Germany from June 1958 to June 1964 as part of NATO's Cold War defense of Western Europe. It was the first US missile to carry a live nuclear warhead, in the 1958 Pacific Ocean weapons test Hardtack Teak.

<span class="mw-page-title-main">Black Brant (rocket)</span> Family of Canadian-designed sounding rockets

The Black Brant is a family of Canadian-designed sounding rockets originally built by Bristol Aerospace, since absorbed by Magellan Aerospace in Winnipeg, Manitoba. Over 800 Black Brants of various versions have been launched since they were first produced in 1961, and the type remains one of the most popular sounding rockets. They have been repeatedly used by the Canadian Space Agency and NASA.

Black Knight was a British research ballistic missile, originally developed to test and verify the design of a re-entry vehicle for the Blue Streak missile. It is the United Kingdom's first indigenous expendable launch project.

<span class="mw-page-title-main">Black Arrow</span> British satellite carrier rocket developed during the 1960s

Black Arrow, officially capitalised BLACK ARROW, was a British satellite expendable launch system.

<span class="mw-page-title-main">Woomera, South Australia</span> Town in South Australia

Woomera, unofficially Woomera village, is the domestic area of RAAF Base Woomera. Woomera village has always been a Defence-owned and operated facility. The village is located on the traditional lands of the Kokatha people in the Far North region of South Australia, but is on Commonwealth-owned land and within the area designated as the Woomera Prohibited Area (WPA). The village is approximately 446 kilometres (277 mi) north of Adelaide. In common usage, "Woomera" refers to the wider RAAF Woomera Range Complex (WRC), a large Australian Defence Force aerospace and systems testing range covering an area of approximately 122,000 square kilometres (47,000 sq mi) and is operated by the Royal Australian Air Force.

The Vanguard rocket was intended to be the first launch vehicle the United States would use to place a satellite into orbit. Instead, the Sputnik crisis caused by the surprise launch of Sputnik 1 led the U.S., after the failure of Vanguard TV-3, to quickly orbit the Explorer 1 satellite using a Juno I rocket, making Vanguard 1 the second successful U.S. orbital launch.

<span class="mw-page-title-main">European Launcher Development Organisation</span> Organization

The European Launcher Development Organisation (ELDO) is a former European space research organisation. It was first developed in order to establish a satellite launch vehicle for Europe. The three-stage rocket developed was named Europa, after the mythical Greek goddess. Overall, there were 10 launches that occurred under ELDO's funding. The organisation consisted of Belgium, Britain, France, Germany, Italy, and the Netherlands. Australia was an associate member of the organisation.

<span class="mw-page-title-main">Skylark (rocket)</span> British sounding rocket family

Skylark was a family of British sounding rockets. It was operational between 1957 and 2005.

The Sparta was a three-stage rocket that launched Australia's first Earth satellite, WRESAT, on 29 November 1967.

The Australian Space Research Institute (ASRI) was formed 1991 with the merger of the AUSROC Launch Vehicle Development Group at Monash University, Melbourne and the Australian Space Engineering Research Association (ASERA).

<span class="mw-page-title-main">Timeline of first orbital launches by country</span>

This is a timeline of first orbital launches by country. While a number of countries, incl. Canada, Australia, Germany, Brazil, Algeria, Kazakhstan, Turkey, Argentina, Italy, Malaysia, Poland, South Africa, the Philippines, Egypt, Spain, Mexico, Thailand and Chile, have built or launched satellites, as of 2022, eleven countries, incl. the United States, Japan, China, India, Iran, Israel, France, the United Kingdom and South Korea, have had the capability to send objects into orbit with their own launch vehicles. Russia and Ukraine inherited the capability of the space launchers and satellites from the Soviet Union, following its dissolution in 1991. Russia launches its rockets from its own and foreign (Kazakh) spaceports.

<span class="mw-page-title-main">Castor (rocket stage)</span> Solid-fuel orbital vehicle component

Castor is a family of solid-fuel rocket stages and boosters built by Thiokol and used on a variety of launch vehicles. They were initially developed as the second-stage motor of the Scout rocket. The design was based on the MGM-29 Sergeant, a surface-to-surface missile developed for the United States Army at the Jet Propulsion Laboratory.

The Redstone family of rockets consisted of a number of American ballistic missiles, sounding rockets and expendable launch vehicles operational during the 1950s and 1960s. The first member of the Redstone family was the PGM-11 Redstone missile, from which all subsequent variations of the Redstone were derived. The Juno 1 version of the Redstone launched Explorer 1, the first U.S. orbital satellite in 1958 and the Mercury-Redstone variation carried the first two U.S. astronauts into space in 1961. The rocket was named for the Redstone Arsenal in Huntsville, Alabama where it was developed.

<span class="mw-page-title-main">RAAF Woomera Range Complex</span> Aerospace facility in South Australia

The RAAF Woomera Range Complex (WRC) is a major Australian military and civil aerospace facility and operation located in South Australia, approximately 450 km (280 mi) north-west of Adelaide. The WRC is operated by the Royal Australian Air Force (RAAF), a Service of the Australian Defence Force (ADF). The complex has a land area of 122,188 km2 (47,177 sq mi) or roughly the size of North Korea or Pennsylvania. The airspace above the area is restricted and controlled by the RAAF for safety and security. The WRC is a highly specialised ADF test and evaluation capability operated by the RAAF for the purposes of testing defence materiel.

References

  1. Morton 2017, p. 488.
  2. "Redstone Sparta | WRESAT". nextspaceflight.com. Retrieved 2024-07-20.
  3. 1 2 3 Morton 2017, p. 493.
  4. "First time in History". The Satellite Encyclopedia. Retrieved 15 April 2011.
  5. "Asterix-1 – Space Archaeology". spacearchaeology.org. Retrieved 2016-11-15.
  6. National Film Archive film clips of WRESAT
  7. Synopsis of WRESAT

Literature