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Archive for the ‘satellites’ category: Page 135

Jan 20, 2020

Iceye releases dark vessel detection product

Posted by in categories: biotech/medical, government, information science, robotics/AI, satellites

SAN FRANCISCO – Radar satellite operator Iceye released a product Jan. 20 to detect dark vessels, ships at sea that are not identifying themselves with Automatic Identification System (AIS) transponders.

Iceye combines observations from its constellation of three synthetic aperture radar satellites with other data sources to provide customers with radar satellite images of vessels that are not broadcasting their identification, position and course with AIS transponders. The technology is designed to help government agencies, nongovernmental organizations and commercial customers curb drug and human trafficking, find illegal fishing vessels and enforce rules against illegal transshipment of goods, Finland-based Iceye said in a Jan. 20 news release.

Dark vessel detection is a popular application for radar satellites which gather data day, night and in all weather conditions, Pekka Laurila, Iceye co-founder and chief strategy officer told SpaceNews. With three satellites in orbit, Iceye offers customers the ability to frequently revisit areas of interest. In addition, the company has developed machine learning algorithms to speed up dark vessel detection, he added.

Jan 19, 2020

A new GPS III satellite is online. What will it bring to the fleet?

Posted by in categories: military, satellites

Thanks to the Contingency Operations program, the military is able to utilize the first GPS III satellite without the next-generation ground segment being built for it. The second GPS III satellite was launched in April, and a third launch is slated for later this year. (Airman 1st Class Dalton Williams/Air Force)

Jan 17, 2020

Here’s how just four satellites could provide worldwide internet

Posted by in categories: internet, satellites

New models show how to keep turn forces that usually degrade satellite orbits into supportive ones that keep them propped up in space.

Jan 15, 2020

Advanced Lockheed Martin satellite leaves Colorado in massive plane, bound for South America

Posted by in category: satellites

Four years after Lockheed Martin secured a contract to build the JCSAT-17 satellite, the satellite is now traveling to South America where it will soon launch.

Jan 14, 2020

Lucy Mission Overview: Journey to Explore the Trojan Asteroids

Posted by in categories: materials, satellites

Launching in late 2021, Lucy will be the first space mission to explore the Trojan asteroids. These are a population of small bodies that are left over from the formation of the solar system. They lead or follow Jupiter in their orbit around the Sun, and they may tell us about the origins of organic materials on Earth.

Lucy will fly by and carry out remote sensing on six different Trojan asteroids and will study surface geology, surface color and composition, asteroid interiors/bulk properties, and will look at the satellites and rings of the Trojans.

Jan 12, 2020

Thaicom sniffs out partners

Posted by in categories: government, internet, satellites

SET-listed satellite service provider Thaicom is in talks with three foreign companies on partnership deals to operate ground stations for satellite data transmission as the government works towards opening the satellite industry to private operators through a licensing regime.

The ground stations, known as satellite gateways, are responsible for transmitting data to and from the satellite to the local area network. The antennas and equipment for converting the radio frequency signal to an internet protocol signal for terrestrial connectivity are already installed.

The deals are expected to be concluded this year, with operations kicking off next year, according to Thaicom chief executive Anant Kaewruamgvongs.

Jan 12, 2020

Two new satellites will launch this year to track Earth’s rising oceans

Posted by in categories: satellites, sustainability

A new satellite will provide more detailed information about rising sea levels and other changes in Earth’s oceans. Meet Sentinel-6/Jason-CS.

Jan 12, 2020

Recent progress and perspectives of space electric propulsion systems based on smart nanomaterials

Posted by in categories: nanotechnology, robotics/AI, satellites

Drastic miniaturization of electronics and ingression of next-generation nanomaterials into space technology have provoked a renaissance in interplanetary flights and near-Earth space exploration using small unmanned satellites and systems. As the next stage, the NASA’s 2015 Nanotechnology Roadmap initiative called for new design paradigms that integrate nanotechnology and conceptually new materials to build advanced, deep-space-capable, adaptive spacecraft. This review examines the cutting edge and discusses the opportunities for integration of nanomaterials into the most advanced types of electric propulsion devices that take advantage of their unique features and boost their efficiency and service life. Finally, we propose a concept of an adaptive thruster.

Jan 12, 2020

FCC Filing Confirms Final Contestant in DARPA’s $12 Million Satellite Launch Challenge

Posted by in categories: military, satellites, surveillance

In 2018, the U.S. Defense Advanced Research Projects Agency (DARPA) announced the multi-million-dollar DARPA Launch Challenge to promote rapid access to space within days rather than years. To earn prizes totaling more than US $12 million, rocket companies would have to launch unfamiliar satellites from two sites in quick succession.

“The launch environment of tomorrow will more closely resemble that of airline operations—with frequent launches from a myriad of locations worldwide,” said Todd Master, DARPA’s program manager for the competition at the time. The U.S. military relies on space-based systems for much of its navigation and surveillance needs, and wants a way to quickly replace damaged or destroyed satellites in the future. At the moment, it takes at least three years to build, test, and launch spacecraft.

To ensure that DARPA was incentivizing the flexible, responsive launch technologies the U.S. military needs, competitors would receive information about the site of their next launch fewer than 30 days prior to each flight, DARPA’s rules stated, and only learn their actual payloads two weeks out.

Jan 11, 2020

NASA’s Lucy Mission Confirms Discovery of Eurybates Satellite

Posted by in category: satellites

NASA’s Lucy mission team is seeing double after discovering that Eurybates, the asteroid the spacecraft has targeted for flyby in 2027, has a small satellite. This “bonus” science exploration opportunity for the project was discovered using images taken by the Hubble Space Telescope’s Wide Field Camera 3 in September 2018, December 2019, and January 2020.

Launching in October 2021, Lucy will be the first space mission to study the Trojan asteroids, a population of small bodies orbiting the Sun “leading” and “trailing” Jupiter, at the same distance from the Sun as the gas giant. With flyby encounters past seven different asteroids – one in the Main Asteroid Belt and six in the Trojans, Lucy will be the first space mission in history to explore so many different destinations in independent orbits around our Sun.

“This newly discovered satellite is more than 6,000 times fainter than Eurybates, implying a diameter less than 1 km,” said Southwest Research Institute’s Hal Levison, principal investigator of the mission. “If this estimate proves to be correct, it will be among the smallest asteroids visited.”