DemoSat

Last updated
Demosat-Payload on the first Delta IV-Heavy rocket Demosat with 3CSat.jpg
Demosat-Payload on the first Delta IV-Heavy rocket

A DemoSat is a boilerplate spacecraft used to test a carrier rocket without risking a real satellite on the launch. They are most commonly flown on the maiden flights of rockets, but have also been flown on return-to-flight missions after launch failures. Defunct satellites from cancelled programmes may be flown as DemoSats, for example the maiden flight of the Soyuz-2 rocket placed an obsolete Zenit-8 satellite onto a sub-orbital trajectory in order to test the rocket's performance. [1]

Boilerplate (spaceflight) spacecraft; nonfunctional craft or payload

A boilerplate spacecraft, also known as a mass simulator, is a nonfunctional craft or payload that is used to test various configurations and basic size, load, and handling characteristics of rocket launch vehicles. It is far less expensive to build multiple, full-scale, non-functional boilerplate spacecraft than it is to develop the full system. In this way, boilerplate spacecraft allow components and aspects of cutting-edge aerospace projects to be tested while detailed contracts for the final project are being negotiated. These tests may be used to develop procedures for mating a spacecraft to its launch vehicle, emergency access and egress, maintenance support activities, and various transportation processes.

Soyuz-2 Russian rocket

Soyuz-2, GRAU index 14A14, is the collective designation for the 21st-century version of the Russian Soyuz rocket. In its basic form, it is a three-stage carrier rocket for placing payloads into low Earth orbit. The first-stage boosters and two core stages feature uprated engines with improved injection systems, compared to the previous versions of the Soyuz. Digital flight control and telemetry systems allow the rocket to be launched from a fixed launch platform, whereas the launch platforms for earlier Soyuz rockets had to be rotated as the rocket could not perform a roll to change its heading in flight.

Zenit (satellite) series of Soviet spy satellites

Zenit was a series of military photoreconnaissance satellites launched by the Soviet Union between 1961 and 1994. To conceal their nature, all flights were given the public Kosmos designation.

See also

Related Research Articles

Vega (rocket) orbital launch vehicle by the European space agency

Vega, is an expendable launch system in use by Arianespace jointly developed by the Italian Space Agency and the European Space Agency. Development began in 1998 and the first launch took place from the Guiana Space Centre on 13 February 2012.

Falcon 1 space launch vehicle developed by SpaceX from the United States

The Falcon 1 was an expendable launch system privately developed and manufactured by SpaceX during 2006–2009. On 28 September 2008, Falcon 1 became the first privately-developed liquid-fuel launch vehicle to go into orbit around the Earth.

Kosmos 133, was the first unmanned test flight of the Soyuz spacecraft, and first mission of the Soyuz programme, as part of the Soviet space programme.

Launch escape system system to get the crew to safety if a rocket launch fails

A launch escape system (LES) or launch abort system (LAS) is a crew safety system connected to a space capsule, used to quickly separate the capsule from its launch vehicle rocket in case of a launch abort emergency, such as an impending explosion. Such systems are usually of two types:

Soyuz-U Soyuz rocket design variant - Universal

The Soyuz-U launch vehicle was an improved version of the original Soyuz rocket. Soyuz-U was part of the R-7 family of rockets based on the R-7 Semyorka missile. Members of this rocket family were designed by the TsSKB design bureau and constructed at the Progress Factory in Samara, Russia. The first Soyuz-U flight took place on 18 May 1973, carrying as its payload Kosmos 559, a Zenit military surveillance satellite. The final flight of a Soyuz-U rocket took place on February 22, 2017, carrying Progress MS-05 to the International Space Station.

Soyuz-FG launch vehicle

The Soyuz-FG launch vehicle is an improved version of the Soyuz-U from the R-7 family of rockets, designed and constructed by TsSKB-Progress in Samara, Russia. It made its maiden flight on 20 May 2001, carrying a Progress cargo spacecraft to the International Space Station (ISS).

Pad abort test

A pad abort test is a test of a launch escape system to determine how well the system could get the crew of a spacecraft to safety in an emergency on the launch pad.

2010 in spaceflight spaceflight-related events of 2010

The year 2010 in spaceflight saw a number of notable events in worldwide spaceflight activities. These included the first test flight of the SpaceX Dragon commercial resupply spacecraft, which is intended to resupply the International Space Station (ISS), and the maiden flights of the Falcon 9 and Minotaur IV rockets. In June 2010, South Korea conducted a second Naro-1 launch, after the failure of the rocket's maiden flight in 2009; however, the second attempt also failed. The Kosmos-3M was retired from service, making its final flight in April. The Molniya-M was also retired from service, making its final flight in September.

Minotaur IV active expendable launch system derived from the LGM-118 Peacekeeper ICBM

Minotaur IV, also known as Peacekeeper SLV and OSP-2 PK is an active expendable launch system derived from the LGM-118 Peacekeeper ICBM. It is operated by Northrop Grumman Innovation Systems, and made its maiden flight on 22 April 2010, carrying the HTV-2a Hypersonic Test Vehicle. The first orbital launch occurred on 26 September 2010 with the SBSS satellite for the United States Air Force.

Ratsat

Ratsat, or DemoSat, was a 165-kilogram (363-pound) non-functional boilerplate spacecraft used as a mass simulator on the fourth flight of the Falcon 1 rocket, launched 28 September 2008.

Soyuz-2-1v Russian expendable carrier rocket

The Soyuz-2-1v, GRAU index 14A15, known earlier in development as the Soyuz-1, is a Russian expendable carrier rocket. It was derived from the Soyuz-2.1b, and is a member of the R-7 family of rockets. It is built by TsSKB Progress, at Samara in the Russian Federation. Launches are conducted from existing facilities at the Plesetsk Cosmodrome in Northwest Russia, with pads also available at the Baikonur Cosmodrome in Kazakhstan, and new facilities at the Vostochny Cosmodrome in Eastern Russia.

2016 in spaceflight spaceflight-related events during the year of 2016

Several new rockets and spaceports began operations in 2016. Russia inaugurated the far-Eastern Vostochny Cosmodrome on 28 April 2016 with a traditional Soyuz-2.1a flight, before expanding it for the Angara rocket family in the following years. The Chinese Long March 7 flew its maiden flight from the new Wenchang Satellite Launch Center on Hainan Island on 25 June, and the maiden flight of the Long March 5 took place on 3 November. Two years after its 2014 accident, the Antares rocket returned to flight on 17 October with its upgraded 230 version featuring the Russian RD-181 engine.

2017 in spaceflight spaceflight-related events during the year of 2017

Notable spaceflight activities in 2017 included the maiden flight of India's Geosynchronous Satellite Launch Vehicle Mark III on 5 June and the first suborbital test of Rocket Lab's Electron rocket, inaugurating the Mahia spaceport in New Zealand. The rocket is named for its innovative Rutherford engine which feeds propellants via battery-powered electric motors instead of the usual gas generator and turbopumps.

2018 in spaceflight spaceflight-related events during the year of 2018

This article lists achieved spaceflight events in 2018. For the first time since 1990, more than 100 orbital launches were performed globally.

Antares A-ONE The Cygnus Mass Simulator is a boilerplate payload which was launched April 21, 2013 on the maiden flight of Orbital Sciences Antares rocket

Antares A-ONE was the maiden flight of Orbital Sciences' Antares rocket with a boilerplate payload, the Cygnus Mass Simulator, which was launched 21 April 2013. It was launched from Pad 0A at the Mid-Atlantic Regional Spaceport (MARS) on Wallops Island, Virginia, USA. The boilerplate payload simulates the mass of the Cygnus cargo spacecraft. This dummy payload was sent into an orbit of "approximately 150 by 160 miles" with an inclination of 51.6 degrees.

Aist 1 is a Russian technology demonstration satellite which was launched in December 2013. Aist 1 is operated by the Samara Aerospace University, who constructed it in partnership with TsSKB Progress. It is the second launched Aist satellite, following Aist 2's April 2013 launch.

Progress MS-01

Progress MS-01, identified by NASA as Progress 62 or 62P is a Progress spacecraft used by Roskosmos to resupply the International Space Station (ISS) during 2015. It was launched on December 21, 2015, to deliver cargo to the ISS. Progress MS-1 is the first vehicle in the Progress-MS series.

References