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/WavGen is partnered to deliver high quality world geodata coverages for the Tour de France 2020 once again. We have delivered geospatial data covering the 52 departments in France and we have Trimaran and Terra Media utilizing our software WavGen 3D Studio Max for the event. Together with this satellite and aerial geodata, our plugins are being used to visualize these mountainous areas in 3D Studio Max, Vray, and Redshift
Terra Media Services and Trimaran are a multimedia production VFX house. We produce films, animations and graphics for business, culture and television. Fasci..
The 2020 Giro Italia was to have taken place from 9 to 31 May 2020, as the 103rd edition of the Giro d'Italia, a three-week Grand Tour cycling stage race. The start of the 2020 Giro (known as the Grande Partenza) had been planned to take place in Budapest, Hungary, which would have been the 14th time the Giro has started outside Italy, and the first time a Grand Tour has visited Hungary. The event was jeopardised by the COVID-19 pandemic in Italy, and in March 2020 it was postponed. UCI announced that both Giro and Vuelta will take place in autumn after the 2020 UCI Road World Championships.&n..
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Developers of the first real-time ray-tracing and global illumination Texturing Solution based on wavelet theory, WavGen Pro allows computer graphics users working with Maya 2020/21, 3D Studio Max 2020/21 3D, and Belnder 2021 the abilithy to model, render, and animate literally terabytes of imagery and thousands of hypershade nodes. WavGen announces new and updated plugins for Linux, OSX, and Windows, that further integrate wavelet technologies with Autodesk’s line of 3D modeling, rendering, and runtime applications. We now have exporter plugins for work flows in gaming (Unity,..