But the “pico satellite” being designed and built in a University of Florida aerospace engineering laboratory may hold a key to a future of easy access to outer space — one where sending satellites into orbit is as routine and inexpensive as shipping goods around the world.
“Right now, the way satellites are built, they’re all large, one-of-a-kind and very expensive,” says Norman Fitz-Coy, an associate professor of mechanical and aerospace engineering and the lead investigator on the project. “Our idea is that you could mass produce these small satellites and launch 10 or 20 from a single launch vehicle.”
The satellite is the first ever built at UF and may be the first orbiting spacecraft to be built in Florida, said Peggy Evanich, director of space research programs at UF.
Fifty-one years ago, the former Soviet Union inaugurated the space race with the launch of Sputnik. Since then, satellites have transformed communications, navigation and climatology, as well as science and the military. But satellites remain large, ranging in size from basketball to school bus proportions; expensive, with costs typically in the hundreds of millions to billions of dollars; and slowly hand-built as one-of-a-kind devices, rather than speedily mass produced, Fitz-Coy said.
Scientists and engineers now hope to change that legacy.
“There is a national push to make satellites smaller so that you can provide cheaper and more frequent access to space,” he said.
As part of that push, the National Science Foundation this fall created the Advanced Space Technologies Research and Engineering Center at the UF College of Engineering. Headed by Fitz-Coy, the center will seek to develop “pico- and nano-class small satellites” that can be built and launched for as little as $100,000 to $500,000, according to the NSF. The UF center will receive NSF funding for five years for the research.
Fitz-Coy said small satellites are not anticipated to totally replace larger ones, but rather to complement them by adding new capabilities. For example, he said, “swarms” of small satellites could take multiple, distributed measurements or observations of weather phenomena, or the Earth’s magnetic fields, providing a more comprehensive assessment than is possible with a single satellite.
“People are looking toward these to not totally replace the big satellites but to supplement what the big satellites are doing,” he said.
He said the main impediment to designing small satellites is control: The smaller the satellite, the harder it is to manage its flight path and attitude, or orientation in space – for example, which directions its instruments point, a critical parameter in spacecraft design.
“It’s similar to you driving an SUV down the road or a sub-compact,” Fitz-Coy said, explaining that while inertia helps large satellites, it is not enough to keep small satellites on track and properly oriented. “The SUV is a lot more stable than the sub-compact.”
The goal of the UF satellite, nicknamed SwampSAT, is to test a new system designed to improve small satellites’ attitude control. Having precise control is particularly important for such satellites because they have to fly relatively close to Earth so that their weak communications signals can reach their targets, he said. Because of their proximity to Earth, their instruments must be precisely aimed.
“They need to be able to control their orientation and re-orient rapidly,” he said.
Fitz-Coy and about 12 undergraduate and graduate students began the project last year and hope to complete SwampSAT late this year or early next year, he said.
The cost is anticipated to be about $100,000, with a launch in 2009 – likely aboard an unmanned NASA rocket carrying other payloads as well. The satellite will fly at an altitude of between 600 and 650 kilometers, or from 373 to 404 miles, and will remain in orbit for several years, Fitz-Coy said.
A container that could be standardized for use in transporting the small satellites aboard the rocket also is being developed. As with the satellites themselves, the goal is mass production – to be able to transport satellites to outer space much the same way that ships and trucks transport goods around the terrestrial world now, Fitz-Coy said.
Norman Fitz-Coy | EurekAlert!
Squeezing light at the nanoscale
17.06.2018 | Harvard John A. Paulson School of Engineering and Applied Sciences
The Fraunhofer IAF is a »Landmark in the Land of Ideas«
15.06.2018 | Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.
Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...
The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.
Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.
An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.
Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...
Light detection and control lies at the heart of many modern device applications, such as smartphone cameras. Using graphene as a light-sensitive material for...
Water molecules exist in two different forms with almost identical physical properties. For the first time, researchers have succeeded in separating the two forms to show that they can exhibit different chemical reactivities. These results were reported by researchers from the University of Basel and their colleagues in Hamburg in the scientific journal Nature Communications.
From a chemical perspective, water is a molecule in which a single oxygen atom is linked to two hydrogen atoms. It is less well known that water exists in two...
13.06.2018 | Event News
08.06.2018 | Event News
05.06.2018 | Event News
15.06.2018 | Materials Sciences
15.06.2018 | Ecology, The Environment and Conservation
15.06.2018 | Power and Electrical Engineering