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Where can I get data from Landsat 8?
Data products created from Landsat 8 OLI/TIRS scenes are available to download from EarthExplorer, GloVis, and the LandLook Viewer . Operational Land Imager (OLI) – Built by Ball Aerospace & Technologies Corporation
How big is a scene in Landsat 8?
Landsat 8 aquires about 740 scenes a day on the Worldwide Reference System-2 (WRS-2) path/row system, with a swath overlap (or sidelap) varying from 7 percent at the equator to a maximum of approximately 85 percent at extreme latitudes. A Landsat 8 scene size is 185 km x 180 km (114 mi x 112 mi).
When did the Landsat 8 satellite go into orbit?
Nearly 10,000 scenes were acquired by the Operational Land Imager (OLI) and/or Thermal Infrared Sensor (TIRS) sensors after launch (February 11, 2013) through April 10, 2013, when the satellite achieved operational orbit (WRS-2). The earliest images are TIRS data only. These data are also visible and can be downloaded from EarthExplorer or GloVis.
How often does Landsat 8 cross the equator?
The satellite has a 16-day repeat cycle with an equatorial crossing time: 10:00 a.m. +/- 15 minutes. Landsat 8 aquires about 740 scenes a day on the Worldwide Reference System-2 (WRS-2) path/row system, with a swath overlap (or sidelap) varying from 7 percent at the equator to a maximum of approximately 85 percent at extreme latitudes.
How long does it take to download a scene from Landsat?
Extract scene metadata from the Landsat inventory for Landsat-related datasets. Newly acquired Landsat 7 and Landsat 8 scenes become available for download typically less than 12 hours after data acquisition. Landsat Collection 1 Level-1 scenes are available for download at no charge from EarthExplorer.
How to convert raw Landsat data to reflectance?
The following example shows conversion from raw data to radiance and TOA reflectance for a Landsat 8 image: // Load a raw Landsat scene and display it. // Convert the raw data to radiance. // Convert the raw data to top-of-atmosphere reflectance. Conversion to surface reflectance generally requires some sort of atmospheric compensation.
How often does Landsat 8 orbit the Earth?
Landsat 8 orbits the the Earth in a sun-synchronous, near-polar orbit, at an altitude of 705 km (438 mi), inclined at 98.2 degrees, and completes one Earth orbit every 99 minutes. The satellite has a 16-day repeat cycle with an equatorial crossing time: 10:00 a.m. +/- 15 minutes.