Latest Headlines

Russian Proton Rocket Launches Satellite Trio

Rocket was launched on Dec. 1.

From Spaceflight Now: A powerful Proton-K rocket was launched from the Baikonur Cosmodrome Saturday, December 1, 2001, carrying three replacement spacecraft for Russia's Global Navigation Satellite System. Liftoff of the sixth Proton flight of 2001 occurred at 1804 GMT (1:04 p.m. EST), beginning a four-hour mission to deliver the Uragan satellites into orbit. Known as GLONASS for short, the navigation system uses satellites to transmit navigation radio signals to military and civilian users. The positioning information aids air and sea traffic management, cartography, ground transport monitoring and search and rescue operations. The network is the Russian equivalent of the U.S. Global Positioning System.

Saturday's launch carried two standard Uragan spacecraft and one Uragan-M, which is a next-generation satellite design that promises a longer in-orbit life span of 50 to 100 percent. Its instruments are also more powerful and have higher accuracies. Russian officials say the Uragan-M spacecraft will replace older Uragan satellites in the future, allowing for an improved and more precise navigation system. GLONASS is supposed to feature 24 orbiting satellites divided into three orbital planes in circular orbits 19,100 kilometers high with an inclination of 64.8 degrees to provide global coverage. However, Russia's economic troubles meant replacement satellites couldn't be launched as needed in the1990s. The spacecraft have just three-year service lives. At present, there are only six operational satellites in the orbiting fleet, not counting the three launched Saturday. Three spacecraft from the December1998 launch are positioned in the constellation's Plane 1, and three satellites launched in October 2000 are flying in Plane 3. The new satellites are scheduled to be placed into operation in Plane 2.

Did you enjoy this article? Click here to subscribe to POB

You must login or register in order to post a comment.



Image Galleries

HxGN Live

More than 3,500 attendees from more than 70 countries attended HxGN Live, the annual Hexagon AB user conference, at the MGM Grand Hotel & Casino in Las Vegas on June 3-6. About 450 keynotes and panel discussions were held, and several companies from around the world exhibited their geospatial products. Here are a few snapshots from the event.


POB March 2015 Cover

2015 March

In this March 2015 issue of POB, we take a look at how a dam project's field work becomes complicated with a river and lush vegetation. Also, read about Williston, North Dakota's population boom due to unprecedented oil exploration and drilling activity.

Table Of Contents Subscribe

Is Work Better Today?

Surveyors, how has the newest technologies available to the profession affected you? Compared to five years ago, work today is …
View Results Poll Archive

Point of Beginning Store

M:\General Shared\__AEC Store Katie Z\AEC Store\Images\POB\epubsite\Statues-pic-large.gif
Surveyor Statues

The perfect gift or award for any special occasion.

More Products

Clear Seas Research

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.


Facebook logo Twitter logo  LinkedIn logo  YouTube logoRPLS small logo

Google +

Geo Locator

Buyers Guide

The #1 buyers' guide for land surveyors and geomatics professionals. Search listings for software and equipment manufacturers, equipment dealers and professional services. CLICK HERE to view GeoLocator.