Galileo will Help Lunar Pathfinder Navigate Around Moon

Lunar Pathfinder will relay signals from other Moon missions. (Credit: Surrey Satellite Technology)

PARIS (ESA PR) — ESA’s Lunar Pathfinder mission to the Moon will carry an advanced satellite navigation receiver, in order to perform the first ever satnav positioning fix in lunar orbit. This experimental payload marks a preliminary step in an ambitious ESA plan to expand reliable satnav coverage – as well as communication links – to explorers around and ultimately on the Moon during this decade.

(more…)

NASA Explores Upper Limits of Global Navigation Systems for Artemis

An Orion spacecraft approaches the lunar Gateway. (Credit: NASA)

By Danny Baird
​NASA’s Space Communications and Navigation program office

The Artemis generation of lunar explorers will establish a sustained human presence on the Moon, prospecting for resources, making revolutionary discoveries, and proving technologies key to future deep space exploration.

To support these ambitions, NASA navigation engineers from the Space Communications and Navigation (SCaN) program are developing a navigation architecture that will provide accurate and robust Position, Navigation, and Timing (PNT) services for the Artemis missions. Global Navigation Satellite System (GNSS) signals will be one component of that architecture. GNSS use in high-Earth orbit and in lunar space will improve timing, enable precise and responsive maneuvers, reduce costs, and even allow for autonomous, onboard orbit and trajectory determination.

(more…)

NASA Spacecraft Fly in Record-setting Formation

GREENBELT, Md. (NASA PR) — Summertime airshows are fun to watch, especially when aircraft fly in tight formation. The sight of airplanes soaring overhead practically wingtip to wingtip is thrilling to behold.

Four of NASA’s spacecraft recently performed an equally thrilling maneuver: In Oct. 2015, the satellites of NASA’s Magnetospheric Multiscale, or MMS, mission gathered into a tetrahedral formation with each spacecraft at the tip of a four-sided pyramid only six miles across. Moving together as one, they raced around Earth at 15,000 mph.

(more…)