Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New NASA satellites shipped to launch site

21.12.2005


NASA ’s Space Technology 5 (ST5) micro-satellites have arrived at the Vandenberg Air Force Base, Calif., launch site and are in the beginning stages of final launch preparation. ST5 is scheduled to launch in February 2006.


NASA’s Space Technology 5 (ST5) Project is building and testing three smaller satellites called micro-satellites. These micro-sats will test and validate new technologies for future science missions.



"The team is very excited and we are still working hard as we approach our launch date," said Art Azarbarzin, ST5 Project Manager at NASA’s Goddard Space Flight Center in Greenbelt, Md.

ST-5 will pave the way for future science missions by demonstrating the benefits of a constellation of small low-cost spacecraft obtaining simultaneous measurements in different locations. The three ST5 satellites will fly on a planned 90-day mission.


Miniaturized components and technologies are being integrated into each of the ST5 micro-satellites. Each micro-satellite weighs, about the size of a 13 inch television, are approximately 25 kilograms (55 pounds) when fully fueled and are 53 centimeters (20.7 inches) wide and 48 centimeters (18.7 inches) high. The three ST5 satellites will be launched using a Pegasus XL rocket and spun into a near-Earth polar elliptical orbit that will take them anywhere from 300 kilometers (190 miles) to 4,500 kilometers (2,800 miles) from Earth.

Although small in size, each of ST5 satellites are considered "full service," meaning they contain power, propulsion, communications, guidance, navigation and control functions found in spacecraft that are much larger.

Another unique feature as a result of the miniaturized size and reduced weight is the ability to launch multiple micro-satellites from a low-cost Pegasus XL rocket. The ST5 Project designed, fabricated and tested a new innovative Pegasus launch rack that supports the three micro-satellites in a "stacked" configuration. By utilizing this type of design, each micro-satellite will be individually deployed in a spinning (Frisbee-like) motion.

Once in orbit, the ST5 micro-satellites will be placed in a row about 40-140 km (about 25-90 miles) apart from each other to perform coordinated multi-point measurements of the Earth’s magnetic field using a highly sensitive miniaturized magnetometer built by University of California, Los Angeles. This type of measurement is useful for future Sun-Earth Connection missions that will study the effect of solar activity on the Earth’s magnetosphere, a protective magnetic "bubble" that surrounds the planet and helps protect it from harmful space radiation.

The Cold Gas Micro-Thruster (CGMT), built by Marotta Scientific Controls of Montville, N.J., will provide propulsion for orbit maintenance. The X-Band Transponder Communication System, built by Aero Astro of Chantilly, Va., will support two-way communications between the ST5 micro-satellites and the ground stations. Johns Hopkins University, Applied Physics Laboratory of Laurel, Md. along with Sensortex, Kennett Square, Pa and SANDIA National Labs, Albuquerque, NM., built the Variable Emittance Coatings for Thermal Control, which will test the ability to configure the thermal characteristics of a radiator surface on the micro sat. The University of Idaho, Center for Advanced Microelectronics and Bimolecular Research in Post Falls, Idaho, provided the Complementary Metal Oxide Semiconductor (CMOS) Ultra-Low Power Radiation Tolerant (CULPRiT) Logic, which provides a low-power (operating at 0.5 V) digital-logic test circuit that will help reduce power requirements for future satellites.

The ST5 Project is an instrumental part of the New Millennium Program. The New Millennium Program was created by NASA to develop and test critical and revolutionary technologies needed to enable future endeavors in space. Each flight acts as a "test track" for its suite of technologies, mission objectives, operations concepts, and scientific goals. New Millennium is managed for NASA by the Jet Propulsion Laboratory in Pasadena, Calif.

Lynn Chandler | EurekAlert!
Further information:
http://www.nasa.gov

More articles from Physics and Astronomy:

nachricht Tracing aromatic molecules in the early universe
23.03.2017 | University of California - Riverside

nachricht New study maps space dust in 3-D
23.03.2017 | DOE/Lawrence Berkeley National Laboratory

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

NASA examines Peru's deadly rainfall

24.03.2017 | Earth Sciences

What does congenital Zika syndrome look like?

24.03.2017 | Health and Medicine

Steep rise of the Bernese Alps

24.03.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>