Government

GPS IIF-6 Launch Delayed until Friday Night

May 14, 2014By

Update: The launch of the GPS IIF-6 satellite has been delayed one day due to bad weather. Another GPS IIF satellite is expected to lift off aboard a United Launch Alliance Delta 4 rocket from Cape Canaveral at 8:08 p.m. EDT May 15 at the opening of an 18-minute launch window. The satellite, designated GPS IIF-6 and built by Boeing,... read more

eDLoran Surprise: European Navigation Conference 2014

May 14, 2014By
Shipboard DLORAN receiver installation (orange boxes on rails).

At the ENC-GNSS Conference in Rotterdam, we delved into actions necessary to officially use EGNOS (giving me déjà vu from WAAS’s early days), heard sage words from Brad Parkinson, the father of GPS, and, on the last day, saw amazing proof of a claim many of us initially thought was outrageous —that differential (DLoran) with modern monitoring can result in consistent horizontal accuracies approaching five meters on a moving platform. read more

Next Galileo Satellites Arrive in French Guiana

May 12, 2014By
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The first two Galileo Full Operational Capability (FOC) satellites arrived safely at a clean room in Kourou, French Guiana, at 20:00 on Wednesday, May 7, in preparation for launch this summer. Named “Doresa” and “Milena,” the two Galileo FOC satellites arrived at the Félix Éboué international airport in French Guiana at 02:00 local time. They spent the day in an... read more

SPOT Satellite Devices Mark 3,000 Rescues

May 8, 2014By
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SPOT LLC, a wholly owned subsidiary of Globalstar, Inc., says its SPOT products have been used to initiate 3,000 rescues around the world since the technology’s launch in 2007. With more than 200,000 SPOT units in service, that averages to one rescue a day. SPOT delivers affordable and reliable satellite-based connectivity and real-time GPS tracking, completely independent of cellular coverage.... read more

UAV Shipboard Landing with RTK

May 2, 2014By
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Limited landing area as well as interference due to wind disturbance and wave motion make shipboard landings of unmanned aerial vehicles (UAVs) extremely difficult. Use of UAVs at sea can enhance the efficiency of intelligence gathering and surveillance, and could also increase long-range air-strike capability. read more

On the Edge: Mapping from the Air with a UAV

May 1, 2014By
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Surveying an open-pit mine can be a hazardous undertaking. To obtain accurate volume measurements, it is necessary to pick up edges, known in the industry as “toes and crests,” as well as heaps. These are important features, since they provide a way to verify the current shape of a mine; but in light of increasingly stringent safety regulations and penalties,... read more

This article is tagged with and posted in Featured Stories, From the Magazine, Mapping, Mapping, Survey, Surveying, UAV/UAS/UGV

The System: GLONASS Fumbles Forward

May 1, 2014By
GLONASS PLOT from the Roscosmos GLONASS Information-Analytical Centre, showing the 12-hour outage, with full service eventually restored on April 2.

Two April Disruptions Furnish Fodder for Multi-GNSS Receivers and Alternative PNT In an unprecedented total disruption of a fully operational GNSS constellation, all satellites in the Russian GLONASS broadcast corrupt information for 11 hours, from just past midnight until noon Russian time (UTC+4) on April 2 (or 5 p.m. on April 1 to 4  a.m. April 2, U.S. Eastern time).... read more

DOD Announces Start of Civil Navigation Message Broadcasting

April 29, 2014By

The Department of Defense announced that U.S. Air Force Space Command will begin broadcasting Civil Navigation (CNAV) messages on all operational GPS satellites capable of transmitting the L2C and L5 signals. L2C and L5 are the first of several new civil capabilities being added to GPS as part of the GPS modernization program announced in 1999. The L2C signal is... read more

This article is tagged with and posted in Aviation & Space, GNSS News, Government News, GPS Modernization, Latest News