Posts Tagged: GPS

GOLD reveals unexpected changes in Earth’s nighttime ionosphere

NASA’s Global-scale Observations of the Limb and Disk (GOLD) mission has observed dramatic and unexplained shifts in the location of features in the Earth’s ionosphere surrounding the equator. Unanticipated changes in the nighttime ionosphere can lead to disruptions in communication and navigation that depend on satellites, such as GPS.

GOLD is an ultraviolet imaging spectrograph that was designed and built at LASP and is hosted on the SES-14 communications satellite. The latest discoveries from the mission are challenging mission scientists and were published last week in Geophysical Research Letters.

Since reaching orbit in October 2018, GOLD has been making observations of the Equatorial Ionization Anomaly (EIA), regions of the ionosphere with enhanced electron density north and south of the magnetic equator. One of the primary goals of the mission is to better understand the behavior of the EIA and the instabilities within it. GOLD presents a new ability to image the variability of ionospheric plasma and, ultimately, to understand its causes.

PRESS RELEASE: GOLD Approved for Final Design and Fabrication

The Global-scale Observations of the Limb and Disk (GOLD) mission, part of the NASA Explorers Program, passed a rigorous examination on March 5th at the Goddard Space Flight Center in Maryland, enabling the mission to move into the final design and fabrication phase.

MMS Prepared for Launch to Study Earth’s Dynamic Magnetic Space Environment

Final preparations are underway for the launch of NASA’s quartet of Magnetospheric Multiscale (MMS) spacecraft, which constitute the first space mission dedicated to the study of magnetic reconnection. This fundamental process occurs throughout the universe where magnetic fields connect and disconnect with an explosive release of energy.

The launch of MMS, on a United Launch Alliance Atlas V rocket, is scheduled for 8:44 p.m. MDT on Thursday, March 12 from Cape Canaveral Air Force Station, Florida.

PRESS RELEASE: LASP will partner on NASA mission to study Earth’s upper atmosphere

NASA has announced that LASP will collaborate on a $55 million project to build and launch an instrument to provide unprecedented imaging of the Earth’s upper atmosphere from a geostationary orbit.

The kind of information the Global-scale Observations of the Limb and Disk (GOLD) mission will collect will have a direct impact on man’s understanding of space weather and its impact on communication and navigation satellites.

LASP director explores value of GPS

In an op-ed published in The New York Times on May 27th, LASP Director Dan Baker explored the value of Global Positioning System (GPS) sensors, which are commonly used for navigation.  Developed by the military and implemented in 1973, GPS has been a significant advance in space technology.  Sensors on each satellite, the Nuclear Detonation… Read more »