Featured Research

from universities, journals, and other organizations

TIMED Atmospheric Spacecraft Successfully Launched

Date:
December 11, 2001
Source:
Johns Hopkins University
Summary:
NASA's TIMED (Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics) spacecraft -- en route to explore one of the last frontiers in Earth's atmosphere -- successfully launched Friday, Dec. 7, at 7:07 a.m. PST, aboard a Delta II rocket from Vandenberg Air Force Base, Calif. TIMED is the first mission in NASA's Solar Terrestrial Probes Program, part of the agency's initiative to lower mission costs and provide more frequent systematic studies of the sun-Earth system.

NASA's TIMED (Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics) spacecraft -- en route to explore one of the last frontiers in Earth's atmosphere -- successfully launched Friday, Dec. 7, at 7:07 a.m. PST, aboard a Delta II rocket from Vandenberg Air Force Base, Calif.

Designed and built for NASA by The Johns Hopkins University Applied Physics Laboratory (APL), in Laurel, Md., the 1,294-pound (587-kilogram) spacecraft was placed into its 388-mile (625-kilometer) circular orbit, inclined 74.1 degrees from the equator, 2 hours and 5 minutes after launch. TIMED, which shared the launch vehicle with the Jason-1 spacecraft, was the second of the two spacecraft to be jettisoned from the Delta II rocket. After making initial contact through the ground station in Kiruna, Sweden, 3 hours and 2 minutes after liftoff, TIMED's APL-based Mission Operations Center reported the solar arrays deployed and began providing power to the spacecraft.

TIMED is the first mission in NASA's Solar Terrestrial Probes Program, part of the agency's initiative to lower mission costs and provide more frequent systematic studies of the sun-Earth system. "This is a terrific beginning for the Solar Terrestrial Probes Program," says Dr. Stamatios (Tom) Krimigis, head of APL's Space Department. "We're very excited about working with the broader science community and our colleagues at NASA's Goddard Space Flight Center as we begin to explore this uncharted region of our atmosphere."

The 2-year TIMED mission will study the influences of the sun and humans on the least explored and understood portion of Earth's atmosphere - the Mesosphere and Lower Thermosphere/Ionosphere (MLTI), a gateway between Earth's environment and space. TIMED will focus on a portion of this atmospheric region located approximately 40-110 miles (60-180 kilometers) above the surface, studying its basic structure and how energy is transferred into and out of this area.

Through advances in remote-sensing technology, this mission will be the first global study of the MLTI and will establish a baseline for future studies of this area. "TIMED's instrument suite will work with a worldwide network of ground-based observation sites to obtain an unprecedented set of comprehensive global measurements of the region's temperature, pressure, wind, chemical composition and energy inputs and outputs," says Dr. Sam Yee, TIMED project scientist at The Johns Hopkins University Applied Physics Laboratory.

"With society becoming increasingly dependent on satellite technology and communications, through devices such as cell phones and pagers, it's vital to understand the ever-changing nature of this region," continues Yee. "TIMED's comprehensive study of the MLTI as an integrated system will help the space community predict its effects on communications, satellite tracking, spacecraft lifetimes and on spacecraft reentering Earth's atmosphere."

TIMED's science payload consists of four instruments, each controlled independently from four Payload Operations Centers located across the country. TIMED's instrument package includes a spatial scanning, far-ultraviolet spectrograph that will globally measure the composition and temperature profiles of the MLTI region and auroral energy inputs; a multi-channel infrared radiometer designed to measure heat emitted by the atmosphere, and the temperature and composition of the MLTI region over a broad altitude and spectral range; a spectrometer and a suite of photometers designed to measure solar ultraviolet radiation -- the primary energy deposited into the MLTI; and an interferometer that will globally measure the wind and temperature profiles of the MLTI.

The TIMED mission is sponsored by NASA's Office of Space Science in Washington, D.C., and managed by the NASA Goddard Space Flight Center's Solar Terrestrial Probes Program Office, Greenbelt, Md. The Johns Hopkins University Applied Physics Laboratory operates the spacecraft, leads the project's science effort and manages the mission's Science Data Center for NASA.

For more information about the TIMED mission or to view images from today's launch, visit http://www.timed.jhuapl.edu.

The Applied Physics Laboratory, a division of The Johns Hopkins University, meets critical national challenges through the innovative application of science and technology. For more information, visit http://www.jhuapl.edu.


Story Source:

The above story is based on materials provided by Johns Hopkins University. Note: Materials may be edited for content and length.


Cite This Page:

Johns Hopkins University. "TIMED Atmospheric Spacecraft Successfully Launched." ScienceDaily. ScienceDaily, 11 December 2001. <www.sciencedaily.com/releases/2001/12/011210164151.htm>.
Johns Hopkins University. (2001, December 11). TIMED Atmospheric Spacecraft Successfully Launched. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/2001/12/011210164151.htm
Johns Hopkins University. "TIMED Atmospheric Spacecraft Successfully Launched." ScienceDaily. www.sciencedaily.com/releases/2001/12/011210164151.htm (accessed September 2, 2014).

Share This




More Space & Time News

Tuesday, September 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: NASA Captures Solar Flare

Raw: NASA Captures Solar Flare

AP (Sep. 1, 2014) NASA reported the sun emitted a mid-level solar flare, on August 24th. NASA's Solar Dynamics Observatory captured the images of the flare, which erupted on the left side of the sun. (Sept. 1) Video provided by AP
Powered by NewsLook.com
Space Shuttle Discovery's Legacy, 30 Years Later

Space Shuttle Discovery's Legacy, 30 Years Later

Newsy (Aug. 30, 2014) The space shuttle Discovery launched for the very first time 30 years ago. Here's a look back at its legacy. Video provided by Newsy
Powered by NewsLook.com
Experiment Tests Whether Universe Is Actually A Hologram

Experiment Tests Whether Universe Is Actually A Hologram

Newsy (Aug. 27, 2014) Researchers at Fermilab are using a device called "The Holometer" to test whether our universe is actually a 2-D hologram that just seems 3-D. Video provided by Newsy
Powered by NewsLook.com
SpaceX’s Falcon 9 Rocket Explodes After Liftoff

SpaceX’s Falcon 9 Rocket Explodes After Liftoff

Newsy (Aug. 23, 2014) The private spaceflight company says it is preparing a thorough investigation into Friday's mishap. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins