TAG: BeiDou

The System: All Systems Go, with a Spring into Space

May 1, 2015By

Planet Earth gained five new navigation satellites in late March, for four satellite systems. GPS. The U.S. Air Force’s ninth GPS Block IIF satellite (GPS IIF-9) launched on March 25 from Cape Canaveral, Fla. The IIF-9 rode aboard a Delta IV rocket, the workhorse of the GPS fleet for successful launches. The satellite was declared operational on April 21. “Many... read more

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ComNav, CGEOS Build First BeiDou CORS Station in Europe

April 9, 2015By

Europe's first BeiDou CORS station — Qiao CORS Station — has been built in Wallonia, Belgium. ComNav partnered with local company CGEOS – Creative Geosensing on the project read more

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The System: Celebrating 20 Years of GPS

April 1, 2015By
GPSIIF-launch-ULA-8

April marks the 20th anniversary of GPS FOC. U.S. Air Force Space Command declared Full Operational Capability (FOC) for the GPS constellation April 27, 1995, signifying the system met all requirements with 24 operational Block II/IIA satellites in their assigned orbital slots and providing both the military Precise Positioning Service (PPS) performance standard and the civil Standard Positioning Service (SPS)... read more

All GNSS Attend, But Galileo Gets the Spotlight

March 30, 2015By

First and foremost, let’s give a big hand to Adam and Anastasia, the two Galileo FOC satellites that were successfully launched on March 27. Following the not-so-successful Galileo launch in August, it was imperative that this go smoothly. Although the Double-A launch occurred after the conclusion of this year’s Munich Satellite Navigation Summit, anticipation of the event set the context... read more

BeiDou Launch Expected Monday

March 26, 2015By

News courtesy of the CANSPACE Listserv. The launch of the next BeiDou satellite is predicted to occur at about 13:45 UTC on Monday, March 30. The new BeiDou satellite would be the fifth GNSS satellite planned for launch by the end of the month, joining GPS Block IIF-9 (launched Wednesday), Galileo 7 and 8 (planned for launch Friday) and IRNSS-D (planned for launch Saturday, March... read more

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BeiDou Launch May Take Place This Month

March 19, 2015By
BDS-3_M1_launch_cover.jpg

News courtesy of the CANSPACE Listserv.   The first satellite in the BeiDou Phase 3 expansion could be launched by the end of March. Apparently, a BeiDou satellite has been shipped to the Xichang launch site, and tracking ships have left port for the open ocean. Also, a philatelic first-day cover for the launch (a common Chinese practice) has been issued with... read more

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In GNSS Race, Could Galileo Be Surging into Second?

March 4, 2015By
σ(pr_gnd) versus elevation for Galileo E1 (dotted lines) and GPS L1 (solid lines for different smoothing constants: red (10s), green (30s), cyan (60s), purple (100s).

A Lockheed Martin vice president has stated that the first GPS III satellite will likely launch in 2017, not 2016 as had been projected in the most recent update. The company is readying the first satellite for launch availability by the end of 2015, for launch as early as the end of this year, but Mark Valerio, vice president and general manager of Lockheed Martin's military space business, stated in a Feb. 18 news briefing that he expects the Air Force will schedule its launch for early 2017. read more

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BeiDou Numbering Presents Leap-Second Issue

March 3, 2015By
Leap-Second-O

During preparation of playback scenarios for the upcoming leap-second event taking place in June, engineers at Racelogic identified a potential pitfall for GNSS engineers. The difficulty arises from the fact that BeiDou uses a different “day number” for the date to apply the leap second, compared with GPS and Galileo. GPS and Galileo use 1-7 as week day numbers, and... read more