NGIS is a vendor-independent satellite imagery provider. This means we are in a position to offer the best satellite imagery for your specification project without compromising on vendor relationships. We are 100% independent.
We are proud to source the following types of satellite imagery both as new captures but also from archives.
High Resolution Satellite Imagery
GeoEye-1: Launched in September 2008, it is currently the world’s highest-resolution commercial satellite offering multi-spectral imagery at a resolution of only 1.64m and panchromatic imagery at a resolution of 0.5m. This allows the satellite to produce both pan-sharpened natural and false colour imagery down to a resolution of 0.5m. The GeoEye-1 satellite also has the unique ability to be able to produce high-resolution DEMs in stereo mode, making it extremely useful for geological, geomorphological and various mine engineering applications.
QuickBird: Launched in October 2001, the Quickbird satellite has been one of the world’s most successful satellites. It offers multi-spectral imagery at a resolution of 2.4m and panchromatic imagery at a resolution of 0.6m. This allows the satellite to produce both pan-sharpened natural and false colour imagery down to a resolution of 0.6m.
IKONOS: Launched in September 1999, the IKONOS satellite (meaning ‘image’ in Greek) was the world’s first sub-metre commercially available satellite. It is still orbiting the Earth with a revisit rate of between 3 to 5 days for off-Nadir imagery providing an exceptional global imagery archive. It offers multi-spectral imagery at a resolution of 4m and panchromatic imagery at a resolution of 0.8m. This allows the satellite to produce both pan-sharpened natural and false colour imagery down to a resolution of 0.8m. Like its newer cousin GeoEye-1, the IKONOS satellite also has the ability to produce high-resolution DEMs.
Medium Resolution Satellite Imagery
ALOS: Launched in January 2006, ALOS is a Japanese research satellite providing both multi-spectral and panchromatic satellite imagery. Its multi-spectral sensor can obtain 4-band imagery at a resolution of 10m, while its panchromatic sensor can capture imagery down to a maximum resolution of 2.5m. The ALOS multi-spectral sensor has the added benefit of having a large scene size of 70km by 70km, providing cost-effective remote sensing for regional applications such as agriculture, vegetation mapping and geological analysis.
ASTER: Launched by NASA in 1999 as a research satellite, ASTER has been actively collecting 15-band multi-spectral imagery for the globe since February 2000. ASTER has 3 sensors - Very Near-Infra Red, Short Wave Infra-Red and Thermal Infra-Red. These sensors capture imagery with resolutions of 15m, 30m and 90m respectively. ASTER is an exceptional satellite, which has excellent uses in geological and mineral exploration, as well as vegetation mapping. To obtain a list of the various case studies highlighting the use of ASTER in many industries, please contact NGIS.
LANDSAT: Without doubt, the world’s most successful series of satellites has been Landsat. The first Landsat satellite was launched by NASA in 1972, with subsequent successful launches in 1975, 1978, 1982, 1984 and 1999. Landsat 5 and Landsat 7 are still in orbit and, amazingly, have compiled a global archive of imagery spanning four decades. The Landsat series of satellites, due to their large scene sizes and multi-spectral spatial resolutions ranging from 90m to 30m, have made them excellent for providing regional studies of vegetation and geology.
For more information on any of the above satellites, please email remote.sensing@ngis.com.au