This mega thrust earthquake of Dec 26, 2004 shifted several sites on Indian and Eurasian plates, which has been quantified from various GPS studies. As the relative change in triangular area between different sites is more sensitive than the relative change in their coordinates, it has been attempted to calculate the anomalies in triangular area on daily basis between 12 permanent GPS stations of C-MMACS and 16 IGS stations for a period of 60 days from 1st Dec 2004 – 30th Jan 2005.

MSAS (MTSAT Satellite-based Augmentation System is the Japanese satellite based augmentation system which has been prepared by the Civil Aviation Bureau of Ministry of Land, Infrastructure, Transport and Tourism (MILT) and started on 27 September 2007, to serve for improving accuracy, integrity, and availability of GPS positioning on the civil aircrafts. It has two geostationary satellites, called MTSAT-1R and MTSAT-2 located at 140 and 145 degrees in the east longitude, on the orbit of 3600km above the Equator. The satellites were launched in February of 2005 and 2006 respectively, long after the launch failure on November 1999. MTSAT, which stands for Multi-functional Transport SATellite, also has a function of geostationary metrological satellite.

Europe is building its own global satellite navigation system, Galileo, which will offer very accurate positioning and timing, under civilian responsibility. This system will be compatible with the two other existing systems, GPS and GLONASS. A user will be able to use the same receiver to calculate his position from signals sent out by any satellites combination, however Galileo will offer to all users a bi frequency system that will allow knowing position within one meter of accuracy, which is unprecedented for an openly accessible service. Apart from extreme circumstances, it will always be available and its users will be informed in a few seconds of a potential disruption of one of the satellites. Thus it will be usable for safety of life applications, requiring the highest security level, such as plane landing, train circulation or car guidance.

Any look into the crystal ball of (even the near) future is fraught with caveats, error, and less than perfect clarity. However, certain extrapolations and not-so-wild guesses do exist.
GNSS, General – Existing (and near term proposed) systems will continue to expand, receive modernization support, and move (slowly) towards increased interest in securitizing systems and data utilized in the GNSS sourceto- user “food chain”. Nationalism of systems and (at least regionalism of) augmentation sources will progress.

There are lots of needs for a unified platform that allows efficient GNSS (Global Navigation Satellite System) receiver development and testing for various applications. With the current functionality of the GPS constellation and the promise of the future Galileo constellation, many efforts have been focused on the 1575.42MHz L1 signals for the GNSS software receiver implementation. GPS (Global Positioning System) L1 or Galileo E1…

Prem Shanker

Goel is Secretary to the Government of India,

Ministry of Earth Sciences (MoES).

India has recently launched the National Tsunami Early Warning System (TEWS) established by Ministry of Earth Sciences. Coordinates discussed various aspects of the TEWS with Dr P S Goel, Secretary to the Government of India, Ministry of Earth Sciences

Who can forget December 26, …

In looking ahead at what milestones we may expect to see during 2008 in the world of GPS and GNSS it is easy to be caught at one of two extremes. The first extreme would be to make the mistake of the shortsighted person who in the late nineteenth century proposed that the US Patent Office should be closed because everything conceivable had already been invented. The other extreme would be to look ahead at the promise of new constellations…

Nano effects
 
A historic moment.
For the automobile industry and for India too.
Tata unveiled small car Nano with a price tag of US$ 2,500.
When this ‘car for masses’ was promised, many did not believe.
Now it is a reality.
A revolutionary innovation.
An innovation that may change the life of millions.
GNSS technology too has this potential.
For imaginative applications and wider …

Ajay Seth,
Managing Director of Elcome Technologies on being acquired by Hexagon

 
What was the thought behind this acquisition?

The Indian market is growing very rapidly. From Hexagon’s perspective as well as the Indian point of view, we need to grow faster and this requires investment. Hexagon could help us achieve this …

January 2008

Institute of navigation national technical Meeting

January,28-30, 2007,

San Diego, California, USA

www.ion.org

February 2008

Mobile World congress 2008

February 11 – 14,

Barcelona, Spain

www.mobileworldcongress.com

Munich satellite navigation summit

19 – 21 February, 2008,

Residenz München, Germany

http://www.munich-satellitenavigationsummit.org/

GSDI-10  St.Augustine, Trinidad

February 25-29, 2008

http://www.gsdi.org/gsdi10/

NavtechGPS Seminars

February 25-29, 2008

New Orleans, LA

PWitt@navtechgps.com

March 2008

CeBIT

March 4-9,

Hannover Germany

www.cebit.de

WAlIS Forum 2008

March 12-14,

Perth, Western Australia

forum@walis.wa.gov.au

http://www.walis.wa.gov.au/forum

April 2008

GEO-SIBERIA 2008

April 22 – 24, 2008,

Novosibirsk , Russia,

strutz@sibfair.ru

http://geosiberia.sibfair.ru/eng/n

Space …