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ASTOS
ASTOS is a tool dedicated to mission analysis, Trajectory optimization, vehicle design and simulation for space scenarios, i.e. launch, re-entry missions, orbit transfers, Earth observation, navigation, coverage and re-entry safety assessments. It solves Aerospace problems with a data driven interface and automatic initial guesses. Since 1989, with the support of the European Space Agency, it has developed, and improved this trajectory optimization environment to compute optimal trajectories for a variety of complex multi-phase Optimal control problems. ASTOS is being extensively used at ESA and aerospace industry community to calculate mission analysis, optimal launch and entry trajectories and was one of the tools used by ESA to assess the risk due to the ATV 'Jules Verne' re-entry. ASTOS is compatible with Windows and Linux platforms and is maintained and commercialized by Astos Solutions GmbH. History The development of ASTOS (formerly named ALTOS) started in 1989 at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optimal Control
Optimal control theory is a branch of mathematical optimization that deals with finding a control for a dynamical system over a period of time such that an objective function is optimized. It has numerous applications in science, engineering and operations research. For example, the dynamical system might be a spacecraft with controls corresponding to rocket thrusters, and the objective might be to reach the moon with minimum fuel expenditure. Or the dynamical system could be a nation's economy, with the objective to minimize unemployment; the controls in this case could be fiscal and monetary policy. A dynamical system may also be introduced to embed operations research problems within the framework of optimal control theory. Optimal control is an extension of the calculus of variations, and is a mathematical optimization method for deriving control policies. The method is largely due to the work of Lev Pontryagin and Richard Bellman in the 1950s, after contributions to calc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cross-platform
In computing, cross-platform software (also called multi-platform software, platform-agnostic software, or platform-independent software) is computer software that is designed to work in several computing platforms. Some cross-platform software requires a separate build for each platform, but some can be directly run on any platform without special preparation, being written in an interpreted language or compiled to portable bytecode for which the interpreters or run-time packages are common or standard components of all supported platforms. For example, a cross-platform application may run on Microsoft Windows, Linux, and macOS. Cross-platform software may run on many platforms, or as few as two. Some frameworks for cross-platform development are Codename One, Kivy, Qt, Flutter, NativeScript, Xamarin, Phonegap, Ionic, and React Native. Platforms ''Platform'' can refer to the type of processor (CPU) or other hardware on which an operating system (OS) or application runs, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Aerospace Center
The German Aerospace Center (german: Deutsches Zentrum für Luft- und Raumfahrt e.V., abbreviated DLR, literally ''German Center for Air- and Space-flight'') is the national center for aerospace, energy and transportation research of Germany, founded in 1969. It is headquartered in Cologne with 35 locations throughout Germany. The DLR is engaged in a wide range of research and development projects in national and international partnerships. DLR also acts as the German space agency and is responsible for planning and implementing the German space programme on behalf of the German federal government. As a project management agency, DLR coordinates and answers the technical and organisational implementation of projects funded by a number of German federal ministries. As of 2020, the German Aerospace Center had a national budget of €1.261 billion. Overview DLR has approximately 10.000 employees at 30 locations in Germany. Institutes and facilities are spread over 13 sites, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fast 20XX
FAST20XX (Future High-Altitude High Speed Transport 20XX ) is a European Space Agency (ESA) program to develop the necessary technologies for a hypersonic suborbital spaceplane. Funding for the program was established under the European Commission's Seventh Framework Programme. Overview The FAST 20XX program run from 2009 to 2012 and was intended to provide a technological foundation for the industrial introduction of advanced hypersonic suborbital spaceplanes in the medium to longer term. No detailed vehicle design was planned under the program, with work instead focusing on mastering the technologies required for the development of such designs. Once the needed technologies were identified, researchers developed the dedicated analytical, numerical and experimental tools needed to investigate them. The project also looked at the legal and regulatory issues related to suborbital flight in consultation with government and international authorities. Two concepts have been focused ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SpaceLiner
SpaceLiner is a concept for a suborbital, hypersonic, winged passenger supersonic transport, conceived at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, or DLR) in 2005. In its second role the SpaceLiner is intended as a reusable launch vehicle (RLV) capable of delivering heavy payloads into orbit. The SpaceLiner is a very long-term project, and does not currently have funding lined up to initiate system development as of 2017. Projections in 2015 were that if adequate funding was eventually secured, the SpaceLiner concept might become an operational spaceplane in the 2040s. Concept The SpaceLiner concept consists of a two-stage, vertical takeoff, horizontal landing configuration with a large uncrewed booster and a crewed stage designed for 50 passengers and 2 crew members. The fully reusable system is accelerated by a total of eleven liquid rocket engines (9 for the booster stage, 2 for the passenger stage), which are to be operated using cryogenic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skylon (spacecraft)
Skylon is a series of concept designs for a reusable single-stage-to-orbit spaceplane by the British company Reaction Engines Limited (Reaction), using SABRE (rocket engine), SABRE, a combined-cycle, Air breathing engines, air-breathing rocket propulsion system. The vehicle design is for a hydrogen-fuelled aircraft that would take off from a specially built reinforced runway, and accelerate to Mach number, Mach 5.4 at altitude (compared to typical airliner's ) using the Atmosphere of Earth#Oxygen, atmosphere's oxygen before switching the engines to use the internal liquid oxygen (LOX) supply to take it into orbit. It could carry of cargo to an equatorial low Earth orbit (LEO); up to to the International Space Station, almost 45% more than the capacity of the European Space Agency's Automated Transfer Vehicle; or to Geostationary transfer orbit, Geosynchronous Transfer Orbit (GTO), over 24% more than SpaceX Falcon 9 launch vehicle in reusable mode (). The relatively ligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hopper (spacecraft)
Hopper was a proposed European Space Agency (ESA) orbital spaceplane and reusable launch vehicle. The Hopper was a FESTIP (Future European Space Transportation Investigations Programme) system study design. Hopper was one of several proposals for a reusable launch vehicle (RLV) developed by the ESA. The proposed reusable launch vehicles were to be used for the inexpensive delivery of satellite payloads into orbit as early as 2015.McKee, Maggie"Europe's space shuttle passes early test."''New Scientist'', 10 May 2004. A prototype of Hopper, known as (EADS) Phoenix, was a German-led European project which involved the construction and testing of a one-seventh scale model of the proposed Hopper. On 8 May 2004, a single test flight of the Phoenix was conducted at the North European Aerospace Test range in Kiruna, Sweden, which was followed by more tests later that month. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VLM (rocket)
The VLM (''Veículo Lançador de Microssatélites'') is a proposed three-stage satellite launcher being developed by the Brazilian General Command for Aerospace Technology in collaboration with Germany. The project originated in 2008 as a simplified version of the VLS-1 rocket, using only the core stages. The first launch is currently planned for no earlier than 2023. A version based on the S-50 rocket engine is being developed, with the objective of launching satellites of up to 150 kg into equatorial circular orbits at 300 km altitude. VLM-1 description The VLM-1 vehicle is designed to deliver up to payloads to a 300 km equatorial circular orbit. VLM-1 is projected to have a total mass of , including 10 tons of propellant. The first two stages will use the S-50 solid fuel engine, with the third using the same S-44 engine as in the VS-40 sounding rocket. * Stage 1: S-50 rocket engine * Stage 2: S-50 rocket engine * Stage 3: S-44 rocket engine Launches will be from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FLPP
The Future Launchers Preparatory Programme (FLPP) is a technology development and maturation programme of the European Space Agency (ESA). It develops technologies for the application in future European launch vehicles (launchers) and in upgrades to existing launch vehicles. By this it helps to reduce time, risk and cost of launcher development programmes. Started in 2004, the programmes initial objective was to develop technologies for the Next Generation Launcher (NGL) to follow Ariane 5. With the inception of the Ariane 6 project, the focus of FLPP was shifted to a general development of new technologies for European launchers. FLPP develops and matures technologies that are deemed promising for future application but currently do not have a sufficiently high technology readiness level (TRL) to allow a clear assessment of their performance and associated risk. Those technologies typically have an initial TRL of 3 or lower. The objective is to raise the TRL up to about 6, thus cre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guiana Space Centre
The Guiana Space Centre (french: links=no, Centre spatial guyanais; CSG), also called Europe's Spaceport, is a European spaceport to the northwest of Kourou in French Guiana, a region of France in South America. Kourou is located approximately north of the equator, at a latitude of 5°. In operation since 1968, it is suitable as a location for a spaceport, because of its equatorial location and open sea to the east. The European Space Agency (ESA), the European Union Agency for the Space Programme (EUSPA), the French space agency CNES (National Centre for Space Studies), the Space Agency of the Republic of Azerbaijan (Azercosmos) and the commercial company Arianespace conduct launches from Kourou. It was used by the ESA to send supplies to the International Space Station using the Automated Transfer Vehicle. History In 1964 Guiana was selected to become the spaceport of France, replacing France's first launch site Centre interarmées d'essais d'engins spéciaux in Hammag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soyuz (rocket Family)
Soyuz (russian: Союз, meaning "union", GRAU index 11A511) is a family of expendable Russian and Soviet carrier rockets developed by OKB-1 and manufactured by Progress Rocket Space Centre in Samara, Russia. With over 1,900 flights since its debut in 1966, the Soyuz is the most frequently used launch vehicle in the world as of 2021. For nearly a decade, between the final flight of the Space Shuttle program in 2011 and the 2020 first crewed mission of SpaceX's Falcon 9 rocket, Soyuz rockets were the only launch vehicles able and approved for transporting astronauts to the International Space Station. The Soyuz vehicles are used as the launcher for the crewed Soyuz spacecraft as part of the Soyuz programme, as well as to launch uncrewed Progress supply spacecraft to the International Space Station and for commercial launches marketed and operated by Starsem and Arianespace. All Soyuz rockets use RP-1 and liquid oxygen (LOX) propellant, with the exception of the Soyuz-U2, whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vega (rocket)
Vega ( it, Vettore Europeo di Generazione Avanzata, or french: Vecteur européen de génération avancée, or en, European Vector of Advanced Generation, meaning "Advanced generation European carrier rocket") is an expendable launch system in use by Arianespace jointly developed by the Italian Space Agency (ASI) and the European Space Agency (ESA). Development began in 1998 and the first launch took place from the Centre Spatial Guyanais on 13 February 2012. It is designed to launch small payloads – 300 to 2500 kg satellites for scientific and Earth observation missions to polar and low Earth orbits. The reference Vega mission is a polar orbit bringing a spacecraft of 1500 kg to an altitude of 700 km. The rocket, named after Vega, the brightest star in the constellation Lyra, is a single-body launcher (no strap-on boosters) with three solid rocket stages: the P80 first stage, the Zefiro 23 second stage, and the Zefiro 9 third stage. The upper module is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
