satellites/space segment Archives - Page 22 of 23 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

satellites/space segment

Galileo’s Plan B (and C)
May 1, 2007

Galileo’s Plan B (and C)

A sea change appears to be taking place in Europe’s Galileo program as its political masters prepare to transform the struggling public-private partnership (PPP) into a more traditional institutional program wholly sponsored by the public sector.

That would move an additional €2.4 to €3 billion onto the public tax burden, but it might also represent the quickest route to completion of the GNSS project backed by the European Union (EU) and the European Space Agency (ESA).

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By Inside GNSS
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More Perils for Galileo . . . and Other GNSS Dramas
March 2, 2007

More Perils for Galileo . . . and Other GNSS Dramas

A convergence of developments over the past few months has brought Europe’s Galileo program to the most critical passage of its history — at least, since final approval of the GNSS initiative by the European Space Agency (ESA) and the European Union (EU) in 2003 and 2004, respectively.

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By Inside GNSS
GPS: Launches of Satellites and Institutional Initiatives

GPS: Launches of Satellites and Institutional Initiatives

Successful launch of the second modernized Block IIR satellite, IIR-15(M2), on September 25 and scheduling of another IIR-M launch on November 14 underlines recent progress in the GPS program.

IIR-15(M2), also identified by its space vehicle number (SVN58) and pseudorandom code number (PRN31), will be placed into orbital plane A, slot 2. The U.S. Air Force has designated the satellite to be launched in November as GPS IIR-16/M3, PRN15/SVN55.

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By Inside GNSS
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USAF Announces More IIF Delay
September 1, 2006

USAF Announces More IIF Delay

The GPS Block IIF program continues to lose ground, with first launch of a satellite now projected as no sooner than May 2008 and as late as January 2009 in a “worst case,” scenario, according to the U.S. Air Force. Program costs are also increasing.

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By Inside GNSS
GPS III, Block IIF Programs Hit New Delays
May 1, 2006

GPS III, Block IIF Programs Hit New Delays

The GPS program appears to be struggling on several fronts recently.

GPS III, the next-generation modernization project for the space and ground segments, is facing renewed uncertainty and possible schedule delays. At the same time, anticipated first launch of the follow-on block of satellites (Block IIF) with the new civil L5 signal has been postponed.

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By Inside GNSS
Russia Labors to Bring Latest GLONASS Satellites On Line
March 2, 2006

Russia Labors to Bring Latest GLONASS Satellites On Line

The Russian Space Forces are continuing efforts to bring the final two GLONASS spacecraft launched December 25 into operation.

One of the trio of satellites (SV798 in slot 19) went on the air in late January. Reports from the Russian news agency RIA Novosti, quoting Russian space officials, subsequently attributed the delay to frozen fuel lines in the satellites.

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By Inside GNSS
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