NASA SIRTF Launches on Board a Delta II Rocket
Written by Fraser Cain
NASA's Space Infrared Telescope Facility (SIRTF) successfully launched on board a Delta II rocket from Florida's Cape Canaveral Air Force Station at 0535 GMT (1:35 am EDT). The Deep Space Network station in Canberra, Australia reported the first data from the observatory 64 minutes after launch. The last of the Great Observatories, SIRTF will use infrared detectors to help expand astronomers' knowledge of many objects in the sky, including brown dwarfs, planet-forming discs of debris around other stars, and distant galaxies. The observatory will undergo two months of testing followed by another month of science verification; after that, SIRFT will be ready for use.
NASA's Space Infrared Telescope Facility (SIRTF) successfully launched from Florida's Cape Canaveral Air Force Station at 1:35:39 a.m. Eastern Daylight Time (10:35:39 p.m. Pacific Daylight Time, August 24) aboard a Delta II launch vehicle.
Flying eastward over the Atlantic Ocean, the new observatory entered an Earth-trailing orbit the first of its kind at about 43 minutes after launch. Five minutes later, the spacecraft separated from the Delta?s second and final stage. At about 2:39 a.m. Eastern Daylight Time (11:39 p.m. Pacific Daylight Time, Aug. 24), about 64 minutes after take-off, the NASA Deep Space Network station in Canberra, Australia received the first data from the spacecraft.
"All systems are operating smoothly, and we couldn?t be more delighted," said David Gallagher, project manager for the mission at NASA?s Jet Propulsion Laboratory, Pasadena, Calif.
The last of NASA?s suite of Great Observatories, the Space Infrared Telescope Facility will use infrared detectors to pierce the dusty darkness enshrouding many of the universe?s most fascinating objects, including brown dwarfs, planet-forming debris discs around stars and distant galaxies billions of light years away. Past Great Observatories include the Hubble Space Telescope, Chandra X-ray Observatory and Compton Gamma Ray Observatory.
The two-and-one-half to five-year mission is an important bridge to NASA?s Origins Program, which seeks to answer the questions: "Where did we come from? Are we alone?"
In-orbit checkout and calibration is scheduled to last 60 days, followed by a 30-day science verification period, after which the observatory is expected to begin its regular science mission.
For more information about the Space Infrared Telescope Facility, visit their Web site at http://sirtf.caltech.edu/>.
Original Source: NASA News Release
Filed under: NASA
Leave a Reply