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Topic: Centaur rocket

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In the News (Thu 18 Apr 19)

Dwelling in the mountains of Thessaly and Arcadia, in the north of Greece, the centaurs were the offspring of Ixion and Nephele, the rain-cloud.
Alternatively, the centaurs were the offspring of Kentauros (the son of Ixion and Nephele) and some Magnesian mares or of Apollo and Hebe.
Centaurs are best known for their fight with the Lapithae, caused by their attempt to carry off Hippodamia (a "horse"woman herself) on the day of her marriage to Peirithous, king of the Lapithae, himself the son of Ixion (illustration, left).
www.brainyencyclopedia.com /encyclopedia/c/ce/centaur.html   (792 words)

 Centaur   (Site not responding. Last check: 2007-11-06)
Dwelling in the mountains of Thessaly, the centaurs were the offspring of Ixion and Nephele, the rain-cloud.
The Centaurs are best known for their fight with the Lapithae, caused by their attempt to carry off Hippodamia (a "horse" woman herself) on the day of her marriage to Peirithous, king of the Lapithae, himself the son of Ixion.
Vignettes of the battle between Lapiths and Centaurs were sculpted in bas-relief on the frieze of the Parthenon, which was dedicated to wise Athena.
www.worldhistory.com /wiki/C/Centaur.htm   (849 words)

 Centaur rocket stage - InfoSearchPoint.com   (Site not responding. Last check: 2007-11-06)
The Centaur rocket is a high-energy upper stage designed for use on satellite launch vehicles, boosting the satellite into its final orbit or, in the case of interplanetary probes, to escape velocity.
Centaur was the brain child of Karel J. "Charlie" Bossart (the man behind the Atlas booster) and Dr. Krafft A. Ehriche, both Convair employees.
Centaur was named after the Greek mythological race of centaurs.
www.infosearchpoint.com /display/Centaur_rocket   (287 words)

 SPACE.com -- LIVE Updates! Mars Reconnaissance Orbiter to Launch on Atlas V Rocket   (Site not responding. Last check: 2007-11-06)
Centaur is beginning to reorient itself to the position needed for the second burn, which is scheduled to begin in about five minutes.
The rocket is 117 nautical miles in altitude, 797 nautical miles downrange from the launch and traveling at 12,600 mph.
The rocket is 358 miles east of the launch pad as Centaur begins its first firing of this launch.
www.space.com /spaceflightnow_atlas_av007.html   (3259 words)

 NASA - Centaur: America's Workhorse in Space
A high-energy rocket is greatly responsible for advancing the quest for knowledge and the revolution in global communications.
Centaur was not to be just another booster, but "the" rocket by which NASA would conduct extensive earth orbit missions, lunar investigations and planetary studies.
Centaur continues to support scientific missions such as SOHO was successfully on Atlas/Centaur-121 on December 2, 1995.
www.nasa.gov /centers/glenn/about/history/centaur.html   (2702 words)

 Spaceflight Now | Atlas Launch Report | Mission Status Center
Telemetry from the Centaur upper stage indicates tank and bottle pressures look good, the batteries are healthy and systems are operating normally as the vehicle settles into this planned coast phase.
The rocket is 105 miles in altitude, 805 miles downrange from the launch pad, traveling at 11,800 miles per hour.
Centaur upper stage liquid hydrogen and oxygen tanking reached flight level earlier, meaning the rocket is now fully fueled for launch.
spaceflightnow.com /atlas/ac163/status.html   (3771 words)

 Protecting Space Systems from Lightning
After launch, a rocket is exposed to the threat of lightning triggered by the presence of the launch vehicle itself and its long, conducting plume, which together can locally enhance the atmospheric electric field to its breakdown value.
The high conductivity of the rocket and its plume causes the fields at the leading end of the rocket and the trailing end of the plume to have similar electric potentials; the voltage difference between these points is essentially zero.
This means that the potential at the upper end of the rocket is approximately the same as the potential of the undisturbed ambient field at the lower end of the rocket's conducting plume.
www.aero.org /publications/crosslink/summer2001/05.html   (5080 words)

 John F. Kennedy Space Center -  KSC Fact Sheets and Information Summaries
The petroleum used as a rocket fuel is a type of kerosene similar to the sort burned in heaters and lamps.
RP-1 is a fuel in the first-stage boosters of the Delta and Atlas-Centaur rockets.
The specific impulse of the Space Shuttle solid rocket booster propellant is 242 seconds at sea level and 268.6 seconds in a vacuum.
www-pao.ksc.nasa.gov /kscpao/nasafact/count2.htm   (1455 words)

 Read about Centaur (rocket stage) at WorldVillage Encyclopedia. Research Centaur (rocket stage) and learn about Centaur ...   (Site not responding. Last check: 2007-11-06)
In the late 1950's and early 1960's Centaur was proposed as a high energy upper stage for the Saturn I,
A version of the Centaur was developed for use with the Space Shuttle but was never used due to tougher safety rules imposed after the
US Air Force to create the Titan IV, which uses the Centaur as its final stage, to launch payloads which had originally been designed for the Shuttle-Centaur combination.
encyclopedia.worldvillage.com /s/b/Centaur_rocket   (286 words)

 [No title]
Centaur 2 was an engineering test for the Centaur program, under development for the Surveyor lunar landing probes.
Echo 2 was a 135-foot diameter mylar balloon that served as a passive line-of-sight communications relay, and brilliant visual satellite, until its decay in June 1969 due to a combination of solar radiation pressure and atmospheric drag.
The payload was the astronomical telescope Orbiting Astronomical Observatory 2.
www.amsat.org /amsat/ftp/satinfo/objinfo.doc   (6778 words)

 Cape Canaveral Rocket and Missile Programs:
The Centaur second stage flown on the Atlas I-Centaur was 30 feet tall by 10 feet wide.
This Centaur second stage is 33 feet, 3 inches tall by 10 feet wide.
Centaur second stage thrust for the Atlas II-Centaur is 33,300 pounds, upgraded to 44,000 pounds for both the Atlas IIA-Centaur and Atlas IIAS-Centaur.
www.spaceline.org /rocketsum/modern-atlas.html   (517 words)

 When General Dynamics purchased 17 percent of Convair's stock, Convair's was three times the size of General Dynamics
The subsequent Atlas D, E, and F series rockets were designed to be used by the Strategic Air Command as ICBMs with a nuclear payload.
This vehicle was a high-energy second-stage rocket with a new liquid hydrogen/liquid oxygen propulsion system that could boost payloads as great as 8,500 pounds (3,856 kilograms) into orbit.
On May 8, 1962, the first Centaur, developed by the Air Force and assembled at the Convair plant in San Diego, was launched but exploded 54 seconds after takeoff.
www.centennialofflight.gov /essay/Aerospace/convair/Aero36.htm   (1670 words)

 Centaur (rocket)
A powerful upper-stage rocket that can be mated to an Atlas or Titan launch vehicle.
The Centaur was America’s first cryogenic rocket, running on a combination of liquid hydrogen and liquid oxygen, and was developed under the direction of Lewis Research Center.
Until early 1974, Centaur was used exclusively in tandem with Atlas but was then adapted for mating to the Titan III to boost heavier payloads into Earth orbit and interplanetary trajectories.
www.daviddarling.info /encyclopedia/C/Centaur_rocket.html   (225 words)

 National Park Service: Man in Space (Rocket Engine Development Facilities)   (Site not responding. Last check: 2007-11-06)
The hot gases, emerging from the rocket nozzle at velocities of 9000 to 12,000 feet per second and temperatures of about 6000°F, are met with a drenching spray of water and quickly cooled to steam temperature and slowed to a velocity of about 25 feet per second.
The modifications include a large vacuum tank which houses the rocket engine, a long, water cooled diffuser section into which the hot engine exhaust is funneled, an inter-cooler for cooling the exhaust gases, and two gas ejectors to provide the pumping necessary to maintain the low vacuum environment during testing.
The technology used to build the Centaur, Saturn, and current Space Shuttle rockets can be directly attributed to the work of the Lewis Research Center in the RETF in its effort to support the continuing propulsion needs of NASA for its many space programs and missions.
www.cr.nps.gov /history/online_books/butowsky4/space5.htm   (1610 words)

 Centaur (rocket stage) -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-11-06)
In the late 1950's and early 1960's Centaur was
The two stainless steel skins are separated by a 0.25 inch (6.4 mm) layer of fiberglass.
A version of the Centaur was developed for use with the (A reusable spacecraft with wings for a controlled descent through the Earth's atmosphere) Space Shuttle but was never used due to tougher safety rules imposed after the (The contestant you hope to defeat) Challenger accident.
www.absoluteastronomy.com /encyclopedia/c/ce/centaur_(rocket_stage).htm   (244 words)

 NASA - Titan IV-B/Centaur Launch Vehicle
The Centaur upper stage, which is designed to fly atop the Titan IV booster vehicle, is 14.2 feet wide, 29 feet tall, and holds 24 tons of propellant.
Under a memorandum of agreement with NASA, the USAF is responsible for procuring the basic launch vehicle and conduct of launch operations.
Lockheed Martin is the prime contractor to the USAF for the Titan IV-B program and its Centaur upper stage.
www.nasa.gov /centers/glenn/about/history/castitan.html   (330 words)

 GPN-2000-000698 - Centaur Rocket Installation in PSL #1
The RL-10 Rocket was developed by Pratt and Whitney in the late 1950's and tested at the Lewis Research Center (now known as the John H. Glenn Research Lewis Field).
This power plant was the propulsion system for NASA's upper stage Centaur rocket and was significant for being the first to use liquid hydrogen and oxygen as fuel.
The Centaur suffered a number of early failures, but later proved to be a very successful upper stage for numerous commercial, NASA and military payloads.
grin.hq.nasa.gov /ABSTRACTS/GPN-2000-000698.html   (112 words)

 Chronology of deep space exploration
March 11: Thor-Able rocket launched the Pioneer-5 (P-2), the first space probe specifically designed to study interplanetary space (between orbits of Earth and Venus), as well as to test long-range communications.
The Molniya rocket failed to launch a Venus probe from the Earth orbit.
Titan-2 rocket launches Clementine spacecraft intended to orbit the Moon and approach the asteroid.
www.russianspaceweb.com /chronology_planetary.html   (2435 words)

 Observing Centaur Rocket Boosters   (Site not responding. Last check: 2007-11-06)
Centaur rockets, so I decided to do some research and determine how many of these are potentially observable.
Atlas Centaurs are relatively large upper stage rockets, most of which are initially in geostationary type transfer orbits (i.e., an apogee of 36000 km and a perigee of a few hundred kilometers).
The Atlas IIIA Centaur (formerly IIAR), scheduled to launch in 1999, is similar to the Atlas II Centaur rocket, except only a single engine is mounted on the centerline of the booster.
www.satobs.org /centaur.html   (1147 words)

 Spaceflight Now | Atlas Launch Report | Mission Status Center
The Pratt & Whitney RL10 engines of the Centaur upper stage are firing for the burn to boost the AMC-11 cargo from the current parking orbit to a highly elliptical geosynchronous transfer orbit around Earth.
The 33-foot long Centaur remains stable with normal rates of motion reported in the telemetry during this coast.
The Atlas rocket is steadily rising in the late afternoon sky here at Cape Canaveral on the 685,000 pounds of thrust being generated by the liquid-fueled MA-5A main engines and two solid-propellant strap-on boosters.
www.spaceflightnow.com /atlas/ac166/status.html   (3346 words)

 GPN-2000-000387 - Centaur Rocket Engine
The Centaur upper stage rocket being developed in the 1960s at the Propulsion Systems Laboratory at Lewis Research Center, now John H. Glenn Research Center.
The Centaur was an ambitious rocket using liquid oxygen and liquid hydrogen.
It was the first rocket to ever use hydrogen as a propulsion fuel and underwent a difficult development period.
grin.hq.nasa.gov /ABSTRACTS/GPN-2000-000387.html   (83 words)

 Atlas rocket launches in defiance of Mother Nature   (Site not responding. Last check: 2007-11-06)
EST from Launch Complex 36A at Cape Canaveral Air Station, Fla. Approximately 70 minutes later, the satellite, nicknamed "Capricorn," separated from the rocket and was placed by the upper stage into a virtually perfect orbit, keeping intact the Atlas II launch vehicle family’s perfect record of mission success.
This series uses the improved Centaur upper stage, the world’s first high-energy propellant stage, to increase its payload capability.
Centaur propulsion is furnished by a Pratt and Whitney liquid rocket engine set consisting of two engines that provide 41,000 pounds of thrust.
www.losangeles.af.mil /SMC/PA/Releases/nr980201.htm   (813 words)

 GPN-2003-00040 - First Titan-Centaur Launch Test
The new NASA rocket was launched on a proof of concept flight designed to prepare it for twin Viking launches to Mars in 1975 and other missions involving heavy payloads.
The 160-foot-tall rocket combines the Air Force Titan III with the NASA high-energy Centaur final stage.
Aboard Titan/ Centaur on its proof of concept flight were a dynamic simulator of the Viking spacecraft and a small scientific satellite (SPHINX) designed to determine how high voltage solar cells, insulators, and conductors are affected by the charges particles in space.
grin.hq.nasa.gov /ABSTRACTS/GPN-2003-00040.html   (191 words)

 Atlas Centaur SLV-3C
After Mariner 6 separated from the Centaur the solar panels were deployed.
A midcourse correction involving a 5.35 second burn of the hydrazine rocket occurred on 1 March 1969.
A correction trim maneuver was made on 30 December on the 94th orbit which raised the periapsis to 1650 km and changed the orbital period to 11:59:28 so that synchronous data transmissions could be made to the Goldstone 64-m DSN antenna.
www.astronautix.com /lvs/atlslv3c.htm   (2305 words)

 Communications satellite launch gives NASA program a big boost
Originally scheduled for blastoff May 22, the unmanned rocket was repeatedly delayed for additional reviews and inspections following the Jan. 28 Challenger disaster, the April 18 explosion of an Air Force Titan 34-D and the May 3 failure of a NASA Delta rocket.
The Atlas-Centaur was the last major NASA rocket scheduled for blastoff in 1986, the agency's worst year since the dawn of the space age.
Even though the rocket suffered eight delays, no problems were ever found with the Atlas-Centaur itself.
www.chron.com /content/interactive/space/archives/86/861205-1.html   (630 words)

 Pioneer 10 & 11
The third stage was required to rocket Pioneer 10 to the speed of 51,810 kph needed for the flight to Jupiter.
The Centaur second stage has two engines having a total thrust of 13,273 kilograms.
This engine carries insulation panels which are jettisoned just before the vehicle leaves the Earth's atmosphere and are used to prevent heat or air friction from causing boil-off of liquid hydrogen during flight through the atmosphere.
www.solarviews.com /eng/pn10-11.htm   (1303 words)

 SOHO Operations   (Site not responding. Last check: 2007-11-06)
The Atlas, consists of a solid rocket booster stage powered by four Thiokol Castor IVA solid rocket boosters (SRB) and a core vehicle stage (booster and sustainer) powered by Rocketdyne MA-5A liquid propellant engines (RP-1 fuel and liquid oxygen).
The Centaur rocket body is 3.04 m in diameter, 9 m long and weight 1814 kg empty.
SOHO is 3.65 m in height and 3.65 m in width and weights 610 kg at separation from the Centaur rocket body.
soho.nascom.nasa.gov /mission/launch_vehicle.html   (299 words)

 ESA - Cassini-Huygens - The launcher
The Cassini-Huygens spacecraft was launched from Launch Complex 40 at Cape Canaveral in Florida on a Titan IV-B/Centaur launch vehicle on 15 October 1997.
The Centaur upper stage separated successfully at 42 minutes and 40 seconds into the flight.
The Titan IV-B/Centaur launch vehicle consists of a two-stage, liquid-propellant booster rocket with two strap-on solid rocket motors, a Centaur upper stage and 30-metre high payload enclosure or fairing.
www.esa.int /SPECIALS/Cassini-Huygens/SEMHGIHHZTD_0.html   (228 words)

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