High Resolution Satellite DTMs

GeoEye-1 stereo satellite imagery is capable of producing Digital Terrain Models (DTM) with better then 0.5m vertical accuracy. AAMHatch tasked the GeoEye-1 satellite to capture stereo data over a 270sqkm area in Eastern Australia. The application was an engineering study for the energy sector with the client requiring a 0.5m ortho-image with 2m contours.     GeoEye-1's unsurpassed agility and maneuverability assists in rapid stereo capture. This image was cloud-free, and delivered to AAMHatch for processing within 48 hours of capture. Survey accurate ground control points, distributed evenly across the area, were used in the image processing. These points enabled... (read more)
2009-09-03 11:01:26

GOCE Earth Explorer Satellite

The European Space Agency is about to launch a mission to investigate the Earth's gravitational field and to map the reference shape of our planet - the geoid - with exceptional resolution and accuracy. The Gravity field and steady-state Ocean Circulation Explorer (GOCE) will be placed onto a low altitude near sun-synchronous orbit by a Russian Rockot vehicle launched from the Plesetsk Cosmodrome in Nothern Russia, some 800 km north of Moscow. Lift-off is scheduled to take place at 16:21 CEST (14:21 UTC) on 10th September. The launcher is operated by Eurockot Launch Services, a joint venture between EADS Astrium... (read more)
2008-08-26 09:06:28

Jason-2 Satellite

NOAA (Washington DC, USA) has announced the launch of a new satellite. The satellite will monitor the rate of sea-level rise and help measure the strength of hurricanes. NOAA will use data from the Jason-2/Ocean Surface Topography Mission (OSTM) to extend a 15-year record from two earlier altimeter missions that currently show sea level is rising at a rate of 3.2 mm/year - nearly twice as fast as the previous 100 years. The Jason-2/OSTM is scheduled for lift off June 15 at 1:47 a.m. from Vandenberg Air Force Base, California. The spacecraft is a joint, international effort between NOAA, NASA,... (read more)
2008-05-22 09:36:05

New GPS Satellite Operational

The fourth in a series of eight modernized Global Positioning System (GPS) satellites that will deliver new capabilities to military and civilian users has been declared fully operational. Launched from Cape Canaveral October 17, the satellite was given the all clear after an on-orbit checkout by a combined U.S. Air Force/Lockheed Martin team. Read more   The satellite joins three IIR-M satellites and 12 other operational Block IIR satellites within the current 28-spacecraft constellation. The fifth GPS IIR-M satellite is scheduled for launch on 20th December 20, 2007 from Cape Canaveral.   (read more)
2007-11-06 01:55:21

Satellite Imagery for Mapping

The ICA Commission on Mapping from Satellite Imagery is responsible for educating and informing the geospatial- data handling community about the link between the raw data captured from satellite imagery and the extraction, presentation and application of information derived from such data. See previous report on this page, GIM March 2007. ToR The Terms of Reference of the 2007-2011 commission, approved at the Moscow ICC, August 2007, include fundamental work: “[…] analysis of existing and forthcoming satellite imagery in view of their potential inputs for producing and updating topographic and thematic maps and databases; and assessment of the cartographic capabilities... (read more)
2008-06-05 12:00:00

First Galileo Satellite Repositioned

Surrey Satellite Technology (SSTL), UK, has completed the repositioning of the first Galileo test satellite, GIOVE-A, to a higher orbit to make way for the operational satellites of Europe's satellite navigation constellation. From the GIOVE-A operational headquarters, the operating team executed a series of precisely planned manoeuvres during July and August that have repositioned the satellite 113km above the orbit that the 27 operational Galileo navigation satellites will occupy.     Since its launch in December 2005, GIOVE-A has achieved all of its mission objectives and remains in excellent condition well beyond its design life of two years. The test... (read more)
2009-10-02 11:33:50

Glonass-K Satellite Launched

The Russian Space Forces have successfully launched a new Glonass-K navigation satellite from the Plesetsk space center, a Defense Ministry spokesman said Saturday. The previous launch under the Glonass project in December 2010, supposed to conclude the forming of the satellite grouping, was unsuccessful as the rocket veered off course and sunk in the Pacific Ocean. The loss cost Russia 2.5 billion rubles (USD86 million) in direct damages. The Glonass-K, which has a service life of ten years, will beam five navigation signals - four in the special L1 and L2 bands and one for civilian applications in the L3... (read more)
2011-02-28 09:35:31

Satellite Radar Interferometry

Interferometric Synthetic Aperture Radar (InSAR) is a beautiful and powerful technology for surface deformation modelling and elevation mapping. However, InSAR also has the reputation of being a complex technology which is challenging to understand. This edition of Technology in Focus aims to explain the concept of InSAR. (By Sabine de Milliano, contributing editor, GIM International) Synthetic Aperture Radar (SAR) is an active remote sensing technique that acquires images of the Earth in the microwave spectrum with wavelengths in the order of centimetres. Electromagnetic waves of this size can penetrate clouds, which makes SAR an all-weather remote sensing system operating day... (read more)
2016-05-02 10:28:49

Modernized GPS Satellite Launched

The fourth US Air Force modernized Global Positioning System Block IIR (GPS IIR-M) satellite was launched successfully from Cape Canaveral Air Force Station aboard a United Launch Alliance (ULA) Delta II launch vehicle. Designated GPS IIR-17M, the satellite is the fourth in a series of eight Block IIR-M spacecraft that Lockheed Martin Navigation Systems has modernised for its customer, the Global Positioning Systems Wing, Space and Missile Systems Center, Los Angeles Air Force Base,CA, USA. The Block IIR-M series includes new features that enhance operations and navigation signal performance for military and civilian GPS users around the globe.   Each... (read more)
2007-10-18 09:51:56

EarthCARE Satellite Contract Signed

The European Space Agency and Astrium GmbH have signed a contract worth €263m to provide the EarthCARE satellite, the sixth Earth Explorer mission of ESA's Living Planet Programme. As prime contractor, Astrium GmbH is responsible for the satellite's design, development and integration. The contract was signed in Berlin on the occasion of the International Aerospace Exhibition (ILA) by Volker Liebig, ESA's Director of Earth Observation, Evert Dudok, CEO of Astrium Satellites and Uwe Minne, Director of Earth Observation and Science at Astrium GmbH (Friedrichshafen), in the presence of German Chancellor Angela Merkel, ESA Director General Jean-Jacques Dordain and Head of... (read more)
2008-05-28 09:16:45
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