December 17, 2010
The recent loss of three GLONASS-M satellites in space resulted from a series of mistakes made by the Russian Energia rocket corporation, the head of the Russian state commission probing the incident said today (December 17), according to the state news agency RIA-Novosti.
December 17, 2010
China successfully launched the seventh BeiDou-2 satellite — the second inclined geostationary orbit (IGSO) — today (4 a.m., December 18 local time) from the Xichang Satellite Launch Center in Sichuan province.
In 2010 China added five spacecraft to its constellation.
December 16, 2010
China is preparing for launch of another satellite in its Compass/BeiDou-2 GNSS system in the "coming days," according to an unnamed spokesperson at the Xichang Satellite Launch Center in southwest China's Sichuan Province.
According to earlier news reports, this will be the second of five inclined geosynchronous orbiting (IGSO) spacecraft planned for the regional version of the system that China hopes to complete by 2012. The full (Phase III) constellation will contain only three IGSOs.
December 6, 2010
A Proton rocket carrying three modernized GLONASS (GLONASS-M) satellites failed to reach orbit following its launch Sunday (December 5, 2010), falling into the Pacific Ocean.
The Russian Federal Space Agency (Roscosmos) said that a special board had been established to investigate the event — rare for the GLONASS program — and "define next steps."
December 4, 2010
Secret tracking using GPS may be simple, undetectable and cheap — but appeals courts can't decide if it's constitutional.
In 1791, when the Fourth Amendment to the United States Constitution was ratified, it certainly seemed specific enough for the needs of the time. The new Americans were tired of colonial powers freely searching and seizing, with general warrants that were as full of holes as Swiss cheese.
December 1, 2010
While funding and technical issues continue to roil the waters at the program and operational level, Galileo and the European Geostationary Navigation Overlay Service (EGNOS) have received a strong reaffirmation of support from the highest levels of the European Union (EU) and the European Space Agency (ESA).
November 30, 2010
A 20-year-old GPS Block IIA satellite designated as space vehicle number 23 (SVN23) is setting new records in longevity among the durable spacecraft of the Global Positioning System.
Built by Boeing (formerly Rockwell Corporation) and launched on November 26, 1990, SVN23 has operated longer than any other GPS satellites — far exceeding its design life of 7.5 years. Set healthy shortly after launch for navigation and timing use, the GPS Directorate (formerly GPS Wing) at Los Angeles Air Force Base predicts that the satellite will last another 12–18 months.
November 29, 2010
As GLONASS approaches completion, it’s no surprise that the Russian counterpart to GPS has gotten into more popular applications of GNSS technology — even Santa-tracking.
For more than 50 years, the North American Air Defense Command (NORAD) has followed the travels of the Christmas gift-bearer from his North Pole headquarters. The Santa-tracking operation can be viewed online.
November 24, 2010
The Institute of Navigation (ION) has released volume seven of its Global Positioning Systems Redbook, a collection of technical papers on integrated systems including — but not exclusively limited to — GPS.
November 17, 2010
Broadcom Corporation reports that for the first time it has been able to compute GNSS positions, using the first Quasi-Zenith Satellite System (QZSS) spacecraft. The Japan Aerospace Exploration Agency (JAXA) launched the Quasi-Zenith Satellite–1 (nicknamed Michibiki) on September 11 and recently started transmitting the QZSS ephemeris (orbital location coordinates).