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satellites/space segment

Galileo Satellites Readied for Friday Launch
October 9, 2012

Galileo Satellites Readied for Friday Launch

Galileo IOV satellites attached to their launch dispenser and encapsulated beneath the fairing of their Soyuz ST-B launcher. ESA graphic by P. Carril

[Updated October 11, 2012] The next two Galileo satellites have been cleared for launch on Friday (October 12, 2012), a couple days later than originally planned.

Follow the Galileo IOV launch live online here.

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By Inside GNSS
India’s Second GAGAN Payload Heads into Space
September 28, 2012

India’s Second GAGAN Payload Heads into Space

Ariane launch poster for ASTRA 2F and GSAT-10

Arianespace successfully launched India’s GSAT-10 satellite this evening (September 28, 2012) on board an Ariane 5 rocket from Europe’s Spaceport in Kourou, French Guiana.

The GSAT-10 carries India’s second GAGAN (GPS Aided GEO Augmented Navigation) payload, following a successful launch of the nation’s first space-based augmentation for GPS last year.

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By Inside GNSS
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China Launches Two More Compass/BeiDou-2 Spacecraft
September 19, 2012

China Launches Two More Compass/BeiDou-2 Spacecraft

China successfully launched another two Compass/BeiDou satellites into space at 3:10 a.m. Beijing time on Wednesday (September 19, 2012), according to the Chinese state news agency Xinhua.

They were the 14th and 15th satellites for the nation’s GNSS system, and presumably the fourth and fifth middle-Earth-orbiting (MEO) satellites in the constellation. The satellites, launched from the Xichang Satellite Launch Center in southwest China’s Sichuan Province, were boosted by a Long March-3B carrier rocket.

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By Inside GNSS
GPS, Galileo Launches Near; GSA Opens Prague Office
September 11, 2012

GPS, Galileo Launches Near; GSA Opens Prague Office

The U.S. and European GNSS programs will launch satellites within a week of each other next month.

A GPS Block IIF satellite is scheduled to be lifted into space on October 4 and a second pair of Galileo in-orbit validation (IOV) satellites, on October 10.

Meanwhile, the European GNSS Agency (GSA) opened its new office in Prague, Czech Republic, last Thursday (September 6, 2012).

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By Inside GNSS
Galileo SVs Test ‘Dummy’ MBOC Signal in Space
July 13, 2012

Galileo SVs Test ‘Dummy’ MBOC Signal in Space

Galileo IOV’s Composite Binary Offset Carrier (CBOC) modulation on E1 Open Service signal, courtesy of ESA Off-line Analysis SIS Software

The first two Galileo in-orbit validation (IOV) satellites in space have achieved a new milestone, transmitting dummy signals in a modulation scheme designed to allow full interoperability with GPS once operational services start.

“This is an advanced modulation technique that offers robust protection against signal interference and the misleading signal reflections known as ‘multipath’,” said Marco Falcone, Head of Galileo System Services.

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By Inside GNSS
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SSTL, OHB Sign €80m Contract with OHB for Second Round of Galileo Payloads
July 12, 2012

SSTL, OHB Sign €80m Contract with OHB for Second Round of Galileo Payloads

Surrey Satellite Technology Ltd (SSTL) signed a  €80 million (US$98 million) contract today (July 11, 2012) with OHB System AG to build a further eight navigation payloads for full operational capability (FOC) Galileo satellites.

Under the contract, SSTL will deliver the second batch of FOC space vehicles (SVs), continuing a successful cooperation between the two companies to build the first 14 satellites under the supervision of the European Space Agency (ESA).

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By Inside GNSS
Mission Accomplished: ESA Turns Out the Lights on GIOVE-A
July 3, 2012

Mission Accomplished: ESA Turns Out the Lights on GIOVE-A

ESA expert inspecting GIOVE-A in clean room in Baikonur Space Center, Kazakhstan. ESA photo

With the first two Galileo in-orbit validation (IOV) spacecraft working well, the European Space Agency (ESA) has decided to end the mission of its pioneering GIOVE-A satellite that had long exceeded it original purpose and design life.

Meanwhile, with the next Galileo launch approaching, ESA has expanded its Radio Navigation Laboratory (RNL) to meet the testing needs of Europe’s GNSS program.

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By Inside GNSS
Air Force Awards Service Support Contract for GPS III SVs
May 31, 2012

Air Force Awards Service Support Contract for GPS III SVs

The U.S. Air Force has awarded Lockheed Martin a $68 million contract to provide mission readiness, launch, early orbit checkout, and on-orbit operations engineering support for the first two GPS III space vehicles.

Under the contract, Lockheed Martin will provide technical support to the Air Force’s 2nd Space Operations Squadron (2SOPS) and monitor the health and performance of the first two GPS III satellites from launch through their 15-year operational design lives.

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By Inside GNSS
COSPAR 2012: Committee on Space Research Scientific Assembly
May 23, 2012

COSPAR 2012: Committee on Space Research Scientific Assembly

Ceremonial room in the Mysore Palace, now a public museum.

The 39th scientific assembly of COSPAR, the Committee On Space Research, willl take place from July 14 to July 22, 2012 at the Global Education Centre-2, Infosys Training Centre, Mysore, Karnataka, India. Mysore is known as the "City of Palaces."

The topics are fundmentals and relevance of space science and technological innovations and applications. Of particular interest to readers of Inside GNSS are sessions on atomic clocks, space weather, space debris, satellite dynamic and the ionosphere.

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By Inside GNSS
First GPS III Launch Delayed by Up to a Year, OCX by Two Years
May 19, 2012

First GPS III Launch Delayed by Up to a Year, OCX by Two Years

The launch of the first GPS III satellite has slipped to 2015 and completion of the ground control system is now delayed by up to two years, according to the chief of the Air Force’s space operations  

“We’ll be ready to launch the first GPS III in 2015, but it now appears the next generation GPS Operational Control System, or OCX, won’t be ready for about a year or two after that,” General William L. Shelton, commander of Air Force Space Command told attendees at the 28th Annual National Space Symposium.

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By Inside GNSS
China Plans Another BeiDou Dual Launch in August
May 18, 2012

China Plans Another BeiDou Dual Launch in August

Ran Chengqi, director of the China Satellite Navigation Office

China will launch another three satellites for the BeiDou-2 (Compass) system by the end of the year, according to officials speaking today (May 18, 2012) at the China Satellite Navigation Conference (CSNC 2012) in Guangchou.

Meanwhile, in comments quoted by People’s Daily Online edition, the system is expected to be adopted by some of China’s neighboring countries in the next year or two. People’s Daily is the official newspaper of the Communist Party of China.

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By Inside GNSS
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