Landsat 7, launched on April 15, 1999, is the latest satellite of the Landsat program. Landsat 7's primary goal is to refresh the global archive of satellite photos, providing up-to-date and cloud-free images. The Landsat Program is managed and operated by the USGS, and data from Landsat 7 is collected and distributed by the USGS. The NASA World Wind project allows 3D images from Landsat 7 and other sources to be freely navigated and viewed from any angle. The satellite's companion, Earth Observing-1, trails one minute following the exact orbital characteristics.
Landsat 7 was designed to last for five years, and has the capacity to collect and transmit up to 532 images per day. It is in a polar, sun-synchronous orbit, meaning it scans across the entire earth's surface. With an altitude of 705 kilometres +/- 5 kilometres, it takes 232 orbits, or 16 days, to do so. The satellite weighs 1973 kg, is 4.04 m long, and 2.74 m in diameter. Unlike its predecessors, Landsat 7 has a solid state memory of 378 gigabits (roughly 100 images). The main instrument on board Landsat 7 is the Enhanced Thematic Mapper Plus (ETM+).
On May 31, 2003 the Scan Line Corrector (SLC) in the ETM+ instrument failed. The SLC consists of a pair of small mirrors that rotate about an axis in tandem with the motion of the main ETM+ scan mirror. The purpose of the SLC is to compensate for the forward motion (along-track) of the spacecraft so that the resulting scans are aligned parallel to each other. Without the effects of the SLC, the instrument images the Earth in a "zig-zag" fashion, resulting in some areas that are imaged twice and others that are not imaged at all. The net effect is that approximately 22% of the data in a Landsat 7 scene is missing when acquired without a functional SLC.
Landsat 7 continues to acquire data in this mode. Data products are available with the missing data optionally filled in using other Landsat 7 data selected by the user. To continue the Landsat legacy, studies are underway to fly an equivalent scientific sensor on a new satellite.
EarthOnDrive has put together a team of electronic & systems experts, remote sensing and photogrammetric software engineers, and signal processing engineers, and has developed the Drone Swarm Mapping technology, consisting of 40 UAV Drones, able to mount thermal SWIR and FLIR and Color camera sets onto a mapping grid of over 1 Mile by 1 Mile.
Projects that we will be deploying our swarm mapping technology on are mining and mineral mapping, large solar panel cluster assessments, griding technologies, construction site analysis, industrial on-site assessment and analysis, infrastructure p..
Tererra Incorporated has integrated newest hardware technologies together with custom operating system enhancements to deliver an accelerated storage solution that is very cost effective. Many companies would like to invest heavily in 10G, 40G, or even 56G network topographies in 2015 and 2016. This customer demand also requires a cost effective storage solution which can handle these speeds. Switch manufacturers are making this a cost effective investment with newest pricing strategies and affordable switches and network cards. Storage manufacturers however, are not effectively targeting cust..
The Tererra Network provides enhanced ISP services, and provides a single fully integrated connectivity solution. The Tererra Network is a world spanning Ethernet/IP network that runs over our privately managed network infrastructure along with its other network products including StratofLash storage, Stratorender GPU rendering, SDN/MPS, Ethernet and Wave Division Multiplexing services.
The Tererra Network works as a community of interest network, enabling all its members to predictably control the distribution of data delivery between customer sites in a way that would otherwise only be ac..
We are pleased to announce the complete and 100% cloud free data over all of the European Union in 2016. The data has been amassed through five years of mapping and project work. It is delivered as GeoTIFF on more than 10TB of hard drives, with a WGS84 and Geodetic datum and projection. We can grid-n-tile the data as you like, in a variety of geospatial file formats.