Keyword: Satellites

Briefs: Imaging
Applications include modeling of tidal stress response of icy satellites as well as fatigue of terrestrial ice shelves.
Briefs: Electronics & Computers
A carbon nanotube heat shield can better protect extremely fast aircraft.
Briefs: Propulsion
These louvers provide passive thermal cooling for CubeSats.
Briefs: Mechanical & Fluid Systems
This retractable de-orbit device facilitates targeted re-entry, attitude and orbital control, and collision avoidance.
Briefs: Communications
Multi- and Wide-Band Single-Feed Patch Antenna

A novel patch antenna technology was developed that provides significant benefits to NASA satellite communication applications, offering a unique wide-band/multi-band operating capability. For other non-space applications, the antenna design also offers broadband capability with high gain for...

Briefs: Photonics/Optics

Since 1998, almost 2,000 shoebox-sized satellites known as CubeSats have been launched into space. Due to their small frame and the fact that they can be made from off-the-shelf...

Briefs: Electronics & Computers

From cellphones to satellites, industry spends millions on traditional gold alloy electrical contact coatings. While gold and other metal alloys have been an industry standard to protect metal components...

Briefs: Materials

NASA's Langley Research Center has developed the SHEARLESS composite boom with a final cross-section shape that is lenticular and is flexible enough to...

Briefs: Electronics & Computers
Piezoelectric Thrust Vector Control for Hall Effect Thruster

The design of the CubeSat required precision pointing of the thrust vector through the spacecraft center of gravity to minimize fuel usage for attitude correction. Because the center of gravity shifts over the course of the mission, a means of adjusting the thrust vector was needed....

Application Briefs: Materials

Optics are employed in virtually every area of military operations, from vision systems and target designators used by troops on the ground, through guidance systems utilized in...

Application Briefs: Materials
Collier Research Corporation
Newport News, VA
www.hypersizer.com

With the go-ahead from NASA for a first mission to the International Space Station (ISS), the Sierra...

Briefs: Software
Location Awareness Algorithm for Internet of Things Devices

Positioning of wireless devices is centralized, depending on “anchors” with known locations such as cell towers or GPS satellites to communicate directly with each device. As the number of devices increases, anchors must be installed at higher density. Centralized positioning can...

Briefs: Electronics & Computers

Technological advancements in materials, sensors, and computing have driven demand for higher-performance satellites. Satellites need to be much more capable in a much smaller size with a...

Briefs: RF & Microwave Electronics
Correcting the Antenna Temperature of an Earth-Observing Microwave Instrument for Extraterrestrial Contamination

Microwave antennas deployed for spaceborne radiometers are diffraction-limited, with typical beam efficiency of about 90%, and provide relatively poor selectivity against radiation from celestial bodies (Moon, Sun, galaxy) when they...

Articles: Test & Measurement

“Measurement is the first step that leads to control and eventually to improvement. If you can’t measure something, you can’t understand...

Briefs: Communications
Video Distribution & Storage Unit (VDSU)

Engineers at NASA Goddard Space Flight Center’s Satellite Services Projects Division (SSPD) have designed a high-performance, space-qualified video distribution and storage unit for Restore-L, a spacecraft that will rendezvous, grasp, refuel, and relocate client spacecraft. While previous...

Briefs: Test & Measurement

NASA Ames Research Center has developed a novel, low-cost, self-contained guidance system for small payload operators. Small satellites are becoming ever more capable of performing valuable missions for both...

Briefs: Electronics & Computers

Power electronics used for routing, control, and conversion of electrical power traditionally utilize silicon semiconductors. These systems tend to be bulky, require active cooling, and are inadequate for...

Application Briefs: Imaging
Northrop Grumman Corporation
Azusa, CA
www.northropgrumman.com

Two critical instruments built by Northrop Grumman for the National Oceanic and Atmospheric...

Briefs: Electronics & Computers
Novel Radiation Shielding Material for Dramatically Extending the Orbit Life of CubeSats

NASA Langley Research Center has developed an innovative radiation shield made by layering metal materials in the Z-shielding method. It is a new, low-cost, and easy-to-implement method to protect CubeSat electronic circuits from ionizing radiation found in...

Briefs: Aerospace

The robotic gripper was developed at NASA Goddard Space Flight Center as part of a robotic satellite servicing mission. The gripping device can be used to autonomously or remotely grasp and...

Briefs: Communications
Method and Associated Apparatus for Capturing, Servicing, and De-Orbiting Earth Satellites Using Robotics

Engineers at Goddard Space Flight Center have overcome limitations plaguing the satellite sector since its inception through the development of a robotic system allowing for the autonomous capture and servicing of in-orbit satellites. By...

Briefs: Aerospace
Non-Catalytic Ignition System for High-Performance Advanced Monopropellant Thrusters

Anon-catalytic pyrotechnic ignition system was developed for advanced green monopropellant systems operating with hydroxylammonium nitrate (HAN)-based monopropellant AF-M315E. This technology will provide increased performance and new operating regimes for...

Articles: Imaging

How much gold remains to be mined on Earth? How about the lesser-known element, indium, necessary for computer and smartphone displays? With known sources of some essential metals facing...

Briefs: Motion Control

Origami has once again inspired engineers at NASA’s Jet Propulsion Laboratory (JPL). Besides aesthetic beauty, the Japanese tradition of paper-folding addresses a persistent problem...

Articles: Aerospace
Airfoil Performance Monitor (APM) John Maris, Puthy Soupin, Ludovic Laberge, and Marie-Hélène Larose
Marinvent Corporation
Saint-bruno, Quebec, Canada...
Briefs: Software
Development of Automated Structural Health Monitoring for Composite Overwrapped Pressure Vessels

Virtually all NASA spacecraft use composite overwrapped pressure vessels (COPVs) to reduce the weight disadvantage of metal pressure vessels. However, these composite structures are more susceptible to damage than metal PVs, are difficult to inspect,...

Briefs: Propulsion

Putting a satellite into low Earth orbit requires a lot of energy, with ground-launched rockets expending two-thirds of their propellant fighting to get...

Briefs: Test & Measurement
Thermal Micro-Extraction Laboratory

Typical extractions in the laboratory require a significant amount of sample material, large-scale equipment, and hands-on participation of a scientist. Such a setup is impractical (or impossible), heavy, and expensive to be carried out on spaceflight instrumentation. While great strides are being made to...