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Topic: Orbital spaceflight

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	Orbital Spaceflight by Lannertech (Site not responding. Last check: 2007-10-22)
		An orbital spaceflight (or orbital flight) is a spaceflight where the spacecraft enters into orbit, usually meaning Low Earth Orbit.
		The expression "orbital spaceflight" is mostly used to distinguish from sub-orbital spaceflights, which are flights where the spacecraft reaches space but does not reach speeds fast enough to enter into orbit.
		Orbital spaceflight from Earth is normally achieved by large rockets that are capable of a delta-v between 9.3 and 10 km/s.
	www.lannertech.com (299 words)

	Orbital spaceflight - Wikipedia, the free encyclopedia
		An orbital spaceflight (or orbital flight) in the general sense is a spaceflight where the trajectory of a spacecraft reaches the height of, and through having an appropriate velocity enters into, orbit around an astronomical body.
		In this latter sense, the expression "orbital spaceflight" is mostly used to distinguish from sub-orbital spaceflights, which are flights where the spacecraft reaches space but does not go fast enough to complete a single orbit.
		Also note that the required speed to "go orbital" (to achieve orbit with known methods) requires atleast 9 km/s (18,000 mph) delta-v, while sub-orbital spacecraft may only fly at about 1.1 km/s to 1.3 km/s (2,500 mph to 3,000 mph).
	en.wikipedia.org /wiki/orbital_spaceflight (250 words)

	Sub-orbital spaceflight - Wikipedia, the free encyclopedia
		A sub-orbital spaceflight (or sub-orbital flight) is a spaceflight that does not involve putting a vehicle into orbit.
		The sub-orbital spaceflight should not be confused with a partial orbital spaceflight: a low Earth orbit, with deorbiting after less than one full orbit, as in the Fractional Orbital Bombardment System.
		During freefall the trajectory is part of an elliptic orbit as given by the orbital equation.
	en.wikipedia.org /wiki/Sub-orbital_spaceflight (734 words)

	Orbital Polisher (Site not responding. Last check: 2007-10-22)
		The orbitals are expressed as linear combinations of basis functions, and the basis functions are one-electron functions centered on nuclei of the component atoms of the molecule.
		The terms ''sub-orbital'' and ''orbital spaceflights'' refer to the latter: an orbital spaceflight is one which completes an orbit fully around the central body.
		An orbital spaceflight is achieved when the spacecraft travels around the Earth in space at sufficient lateral velocity (or equivalently, enough angular velocity) for the centrifugal force to cancel out the pull of Earth's gravity.
	www.blownspeakers.com /pages3/63/orbital-polisher.html (937 words)

	Orbital spaceflight (Site not responding. Last check: 2007-10-22)
		An orbital spaceflight (or orbital flight) in the general sense is a spaceflight where the spacecraft reaches the height of, and through having an appropriate velocity enters into, an astronomical body 's orbit.
		In this latter sense, the expression "orbital spaceflight" is mostly used to distinguish from sub-orbital spaceflight s, which are flights where the spacecraft also reaches space, but does not go high enough, and especially not fast enough, to enter into an orbit around our planet.
		Arc Machines, Inc. Manufactures orbital welding heads, for fusion welding or welding with filler wire and microprocessor-controlled inverter-type power supplies for orbital TIG welding and for controlling all orbital welds heads.
	www.serebella.com /encyclopedia/article-Orbital_spaceflight.html (402 words)

	sub-orbital spaceflight (Site not responding. Last check: 2007-10-22)
		A sub-orbital spaceflight (or sub-orbital flight) is a spaceflight that does not involve putting a vehicle into orbit.
		The sub-orbital spaceflight should not be confused with a partial orbital spaceflight: a low Earth orbit, with deorbiting after less than one full orbit, as in the Fractional Orbital Bombardment System.
		During freefall the trajectory is part of an elliptic orbit as given by the orbital equation.
	encyclopedia.vestigatio.com /sub-orbital_spaceflight (808 words)

	Advanced Space Systems
		Orbital’s extensive experience in developing innovative and reliable small launch and space systems is currently being applied to the development and implementation of new technologies for human spaceflight, commercial transportation, aeronautical research and space transportation.
		Orbital is a key member of the Lockheed Martin-led team that has been selected to build the Orion Crew Exploration Vehicle (CEV), NASA’s next generation spacecraft to transport crews to and from the International Space Station, the Moon, Mars and beyond.
		Orbital provided a specially modified Pegasus launch system to aid researchers in overcoming one of the greatest aeronautical research challenges - air-breathing hypersonic (five times the speed of sound) flight.
	www.orbital.com /AdvancedSpace/index.html (187 words)

	Sub-orbital spaceflight (Site not responding. Last check: 2007-10-22)
		Sub-orbital flights are appealing because it is very much easier to reach space (which simply means going higher than the edge of space) than to achieve orbit (which requires a velocity of about 18,000 mph).
		For more information on the difference between sub-orbital and orbital spaceflight s, refer to the article Difference between sub-orbital and orbital spaceflights.
		Private industry is starting to take an interest in sub-orbital spaceflight, due in part to ventures like the ANSARI X PRIZE (widely expected to be won in 2004).
	www.serebella.com /encyclopedia/article-Sub-orbital_spaceflight.html (701 words)

	orbital spaceflight (Site not responding. Last check: 2007-10-22)
		An orbital spaceflight (or orbital flight) in the earth orbit general sense is a spaceflight where the spacecraft reaches the height of, and through having an appropriate velocity enters into, an astronomical body's orbit.
		Usually though, the term is applied in its specific sense: reaching earth orbit from the earth's surface.
		In this latter sense, the expression "orbital spaceflight" is mostly used to distinguish from sub-orbital spaceflights, which are flights where the spacecraft also reaches space, but does not go high enough, and especially not fast enough, to enter into an orbit around our planet.
	www.yourencyclopedia.net /orbital_spaceflight.html (236 words)

	Orbital spaceflight -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-22)
		Most commonly the term is applied specifically to (Click link for more info and facts about Earth orbit) Earth orbit: reaching Earth orbit from the (The 3rd planet from the sun; the planet on which we live) Earth's surface.
		In this latter sense, the expression "orbital spaceflight" is mostly used to distinguish from (Click link for more info and facts about sub-orbital spaceflight) sub-orbital spaceflights, which are flights where the spacecraft reaches (An area reserved for some particular purpose) space but does not go fast enough to complete a single orbit.
		Note too that the (Click link for more info and facts about edge of space) edge of space (100 (A metric unit of length equal to 1000 meters (or 0.621371 miles)) km) is much lower than the altitude where a vehicle can circle the earth even once without reentering due to atmospheric drag.
	www.absoluteastronomy.com /encyclopedia/O/Or/Orbital_spaceflight.htm (231 words)

	Orbital article - Orbital physics electron configuration molecular orbital physiology - What-Means.com (Site not responding. Last check: 2007-10-22)
		a Culture Orbital is a fictional type of space habitat from Iain M. Banks' "The Culture" science fiction universe
		This is a disambiguation page; that is, one that points to other pages that might otherwise have the same name.
		Orbital article - Orbital definition - what means Orbital
	www.what-means.com /encyclopedia/Orbital (139 words)

	Space Future - Designing the Orbital Space Tourism Experience
		Orbital space tourism is harder to achieve, but, if successful as a business model, will make significant contributions towards improved operational efficiencies, reusability, reliability and economies of scale to the world of crewed space flight.
		Since most of the orbital tourists will be active businesspersons, they may wish to undertake some activities related to their own businesses, such as advertising of new products, etc. provided that any equipment has been vetted for safety/mass impacts, and that the activities are not intrusive on the experience of fellow orbital tourists.
		Part of the effect of the transformation provided by a spaceflight is the missionary zeal that can result, so that former orbital tourists will be willing to talk to a variety of audiences to share their experience and their new insights.
	www.spacefuture.com /archive/designing_the_orbital_space_tourism_experience.shtml (5607 words)

	Satellites & Space Systems
		Orbital is one of the world's leading providers of small- to medium-class satellites.
		Orbital is also a recognized leader in small-and medium-class Science and Technology Satellites that generally perform their missions in low Earth orbit (LEO) satellites that perform communications, remote sensing, space science and technology demonstration missions for commercial, civil, military and international customers.
		Orbital entered the market for interplanetary scientific missions with our selection by JPL to supply the spacecraft for the Dawn asteroid rendezvous mission.
	www.orbital.com /SatellitesSpace (261 words)

	Encyclopedia: Ansari X Prize
		Human spaceflight is space exploration with a human crew, and possibly passengers (in contrast to unmanned space missions, which are remotely-controlled or robotic space probes).
		In human spaceflight, a pilot is someone who directly controls the operation of a spacecraft while located within the same craft.
		It aimed to demonstrate that spaceflight can be affordable and accessible to corporations and civilians, opening the door to commercial spaceflight and space tourism.
	www.nationmaster.com /encyclopedia/Ansari-X-Prize (3430 words)

	Launch ashes - Space burial - Space funeral - Cremation memorials
		The next Celestis memorial spaceflight — the Legacy Flight — is an Earth-Return Service flight projected to occur on April 28, 2007 aboard a SpaceLoft XL launch vehicle provided by UP Aerospace.
		The following memorial spaceflight — the Explorers Flight — is an Earth Orbit Service flight projected to occur late in the third quarter of 2007 aboard a Falcon 1 launch vehicle provided by Space Exploration Technologies Corporation — SpaceX.
		The length of orbital stay depends on the final altitude of the primary satellite launched on the mission (a memorial spacecraft is a “secondary payload” aboard each mission).
	www.memorialspaceflights.com /faq.asp (673 words)

	Project Mercury - Wikipedia, the free encyclopedia
		Orbital missions encountered much higher atmospheric friction and temperatures during reentry and used ablative shields.
		Redstone was used for suborbital flights, and Atlas for orbital ones.
		Starting in October, 1958, Jupiter missiles were also considered as suborbital launch vehicles for the Mercury program, but were cut from the program in July, 1959 due to budget constraints.
	en.wikipedia.org /wiki/Mercury_program (1933 words)

	[extropy-chat] Huygens: First visitor to Titan
		Although the angular velocity required is a function of the height of the orbit, orbital spaceflight is possible at any altitude beyond the edge of space.
		The actual speed of a sub-orbital spacecraft could exceed that of an orbital one and the height that a sub-orbital spacecraft attains may even exceed that of an orbital one, but the critical difference between the two - the achieving of an orbit - depends crucially on the angular velocity.
		The important difference in energy requirements between a sub-orbital spaceflight such as that required for the X Prize and for an orbital spaceflight is that no lateral or angular velocity is required for the sub-orbital flight.
	lists.extropy.org /pipermail/extropy-chat/2005-January/012883.html (1607 words)

	Sub-orbital spaceflight -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-22)
		A sub-orbital spaceflight (or sub-orbital flight) is a (A voyage outside the Earth's atmosphere) spaceflight that does not involve putting a vehicle into (The (usually elliptical) path described by one celestial body in its revolution about another) orbit.
		The sub-orbital spaceflight should not be confused with a partial orbital spaceflight: a (Click link for more info and facts about low Earth orbit) low Earth orbit, with deorbiting after less than one full orbit, as in the (Click link for more info and facts about Fractional Orbital Bombardment System) Fractional Orbital Bombardment System.
		The (Periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth) perigee distance is less than the radius of the Earth, hence the (A closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it) ellipse intersects the Earth.
	www.absoluteastronomy.com /encyclopedia/s/su/sub-orbital_spaceflight.htm (960 words)

	Spaceflight Encyclopedia Article, Definition, History, Biography (Site not responding. Last check: 2007-10-22)
		From a spaceflight perspective, the definition of space usually used is that space begins 100 km (62 miles) above Earth's surface.
		The first successful orbital launch was of the Soviet unmanned Sputnik I mission on October 4, 1957.
		The first orbital flight made by a human being was Vostok 1, carrying Yuri Gagarin on April 12, 1961.
	popularityguide.com /encyclopedia/Spaceflight (1826 words)

	Spaceflight orbital (Site not responding. Last check: 2007-10-22)
		Un spaceflight orbital (o el vuelo orbital) en el sentido general es un spaceflight del donde la nave espacial alcanza la altura, y con tener una velocidad apropiada entra en, órbita alrededor de un cuerpo astronómico.
		En este último sentido, la expresión "spaceflight orbital" se utiliza sobre todo para distinguir de los spaceflights secundario-orbitales, que son los vuelos adonde el espacio de los alcances de la nave espacial pero no va rápidamente bastante a incorporar órbita.
		También observar que la velocidad requerida "va" (lograr órbita con métodos sabidos) las mentiras orbitales alrededor de 8 km/s (18.000 mph), mientras que la nave espacial secundario-orbital puede volar solamente en cerca de 1.1 km/s a 1.3 km/s (2.500 mph a 3.000 mph).
	www.yotor.net /wiki/es/sp/Spaceflight%20orbital.htm (218 words)

	Orbital spaceflight (Site not responding. Last check: 2007-10-22)
		An orbital spaceflight (or orbital flight) in the general sense is a spaceflight where the spacecraft reaches the height of, andthrough having an appropriate velocity enters into, an astronomicalbody 's orbit.
		In this latter sense, the expression "orbital spaceflight" is mostly used to distinguish from sub-orbital spaceflights, which are flights where thespacecraft also reaches space, but does not go high enough, and especially not fastenough, to enter into an orbit around our planet.
		Refer to the article Difference between sub-orbital and orbital spaceflights for furtherinformation.
	www.therfcc.org /orbital-spaceflight-69551.html (173 words)

	The Suborbital Institute - Home Page
		The energies involved in suborbital spaceflight are about 25 times less than for orbital flight.
		The PC industry, for example, was dismissed for many years as a threat to the mainframe and workstation companies but was able to develop and grow over many years and it eventually came to dominate the entire computer industry.
		This is an issue of ongoing legislation and negotiation but most likely the framework will allow the Associate Administrator for Commercial Space Transportation (AST) at the FAA to regulate the high altitude, rocket powered segment of a suborbital mission.
	www.suborbitalinstitute.org /FAQ.html (2513 words)

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