Google Mengontrak GeoEye-1

September 9, 2008 by airianto  
Filed under Geomatics Science, Remote Sensing

GeoEye Satellite

Google mendapatkan hadiah ulang tahun yang ke-10 berupa peluncuran satelit yang bernama GeoEye-1. Peluncuran tersebut hanya berselang sehari menjelang ulang tahun Google. Di harapkan dengan di luncurkan GeoEye-1, Google dapat menambahkan data-data peta satelit dari seluruh dunia. Satelit GeoEye-1 diluncurkan dengan menumpang roket Delta II di tempat peluncuran Vandenberg Air Force Base.

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Google Dikepung Banyak Saingan

September 8, 2008 by airianto  
Filed under Internet, Miscellaneous

Google bisa dibilang masih merajai pasar mesin pencarian Internet hingga 10 tahun debutnya. Tetapi industri mesin pencari pun semakin menggeliat dengan adanya pemain-pemain baru.
Menurut sejumlah pengamat, inovasi baru yang diusung saingan-saingan Google itu diprediksi dapat menggeser si raksasa mesin pencari asal AS tersebut. Apakah ini berarti Google dalam kepungan?

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Constellation of Galileo Satellites

April 16, 2008 by airianto  
Filed under GNSS, Galileo, Geomatics Science

Galileo Constellation

When Galileo, Europe’s own global satellite navigation system, is fully operational, there will be 30 satellites in Medium Earth Orbit (MEO) at an altitude of 23 222 kilometres. Ten satellites will occupy each of three orbital planes inclined at an angle of 56° to the equator. The satellites will be spread evenly around each plane and will take about 14 hours to orbit the Earth. One satellite in each plane will be a spare; on stand-by should any operational satellite fail.

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GLONASS

April 1, 2008 by airianto  
Filed under GLONASS, GNSS, Geomatics Science

Glonass

The Global Navigation Satellite System (GLONASS) is based on a constellation of active satellites which continuously transmit coded signals in two frequency bands, which can be received by users anywhere on the Earth’s surface to identify their position and velocity in real time based on ranging measurements.

The system is a counterpart to the United States Global Positioning System (GPS) and both systems share the same principles in the data transmission and positioning methods. GLONASS is managed for the Russian Federation Government by the Russian Space Forces and the system is operated by the Coordination Scientific Information Center (KNITs) of the Ministry of Defense of the Russian Federation.

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Galileo

March 16, 2008 by airianto  
Filed under GNSS, Galileo, Geomatics Science

galileo

Galileo Satellite

Galileo will be Europe’s own global navigation satellite system, providing a highly accurate, guaranteed global positioning service under civilian control. It will be inter-operable with GPS and GLONASS, the two other global satellite navigation systems.

A user will be able to take a position with the same receiver from any of the satellites in any combination. By offering dual frequencies as standard, however, Galileo will deliver real-time positioning accuracy down to the metre range, which is unprecedented for a publicly available system. Read more

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