timing

November 30, 2017

Army Launches 5-Year PNT Technology R&D Program

The Army is kicking off a wide-ranging, five-year research effort to develop new position, navigation and timing (PNT) technologies for battlefield use.

The goal is to overcome technical barriers in a wide range of areas and military officials are offering to fund multiple, and even multi-phase, cost-plus-fixed-fee (CPFF) efforts to do that. The work may range from studies and analysis to development work that results in the production of a prototype-style deliverable or breadboard and/or a demonstration.

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By Dee Ann Divis
November 27, 2017

GNSS Hotspots

One of 12 magnetograms recorded at Greenwich Observatory during the Great Geomagnetic Storm of 1859
1996 soccer game in the Midwest, (Rick Dikeman image)
Nouméa ground station after the flood
A pencil and a coffee cup show the size of NASA’s teeny tiny PhoneSat
Bonus Hotspot: Naro Tartaruga AUV
Pacific lamprey spawning (photo by Jeremy Monroe, Fresh Waters Illustrated)
“Return of the Bucentaurn to the Molo on Ascension Day”, by (Giovanni Antonio Canal) Canaletto
The U.S. Naval Observatory Alternate Master Clock at 2nd Space Operations Squadron, Schriever AFB in Colorado. This photo was taken in January, 2006 during the addition of a leap second. The USNO master clocks control GPS timing. They are accurate to within one second every 20 million years (Satellites are so picky! Humans, on the other hand, just want to know if we’re too late for lunch) USAF photo by A1C Jason Ridder.
Detail of Compass/ BeiDou2 system diagram
Hotspot 6: Beluga A300 600ST

1. Mapping Air Traffic, Rainy Seasons, and More
Sahel, Africa

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By Inside GNSS

Ligado: Business and Network Plan Remain Unclear

A highly anticipated presentation by Ligado Networks to the nation’s leading satellite navigation experts took an unexpected turn when the company said it could not provide essential network information because it was looking to the government for technical direction and its business plans were still in flux.

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By Dee Ann Divis
November 22, 2017

Contest to Build 22 New GPS III Satellites Commences Dec. 7

Air Force Space Command announced Wednesday it will begin the next phase of its plan to buy another 22 GPS III satellites in two weeks.

The November 22 posting on Fed Biz Opps (fbo.gov) said the highly anticipated Request for Proposals (RFP) would be released on or about December 7. The contract for the new space vehicles is "planned as a single, predominantly Fixed Price Incentive-type contract awarded via full and open competition for production of 22 GPS III SVs."

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By Inside GNSS

Next Tranche of GPS Satellites to be called GPS IIIFs

The Global Positioning Systems Directorate, which is poised to launch its procurement of another 22 GPS III satellites, has given its next tranche of spacecraft a name.

"We are officially calling this GPS IIIF," Col. Gerry Gleckel, the Directorate’s deputy director, told the November meeting of the National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board. "Just as there was a IIF that was the follow-on for the GPS II’s, this is the follow-on for the GPS III."

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By Dee Ann Divis
November 20, 2017

Fiber Optic Gyro from Tamagawa Designed for ADAS, Mobility Applications and More

The TA7774 iFOG is suitable for autonomous driving and mobility applications, and ADAS. Photo courtesy of AdvanTech International.

Tamagawa Seiki, an advanced inertial sensing technology provider for aerospace, military and automotive applications, is launching a new, low-cost, tactical grade, interferometric Fiber Optic Gyroscope (iFOG) suitable for autonomous driving and mobility applications, and ADAS (Advanced Driver Assistance Systems).

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By Inside GNSS
November 10, 2017

Lawmakers Begin Moving Military Space Management Out of the Air Force

Photo courtesy of GPS.gov.

House and Senate authorizers are forcing a reorganization of the Pentagon’s management of military space programs, giving authority to a soon-to-be-named official to prioritize space budgets across services and setting planning in motion for a possible new department. They also approved spending the full amounts requested for the military GPS programs and mandated that defense officials both test a backup to GPS and look at incorporating European and Japanese GNSS signals into military user equipment.

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By Inside GNSS
November 8, 2017

China Launches Two BeiDou-3 Satellites Featuring Accurate Rubidium Atomic Clocks

According to reports out of China, new, very accurate rubidium atomic clocks onboard two BeiDou-3 satellites launched into space on November 5 have greatly improved the accuracy of the system.

The country launched two BeiDou-3 satellites into space via a single carrier rocket to support its global navigation and positioning network at 11:45 UTC on Sunday (November 5). The satellites were aboard a Long March-3B carrier rocket which took off from Xichang Satellite Launch Center in the southwestern province of Sichuan, according to the China Xinhua News Agency.

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By Inside GNSS