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Resources

Satellite Systems

Satellite Data

Past EOS Satellite Systems, descriptions and links to past (no longer active) major unclassified Earth Observation System platforms and sensors.

Current EOS Satellite Systems, descriptions and links to current (as of 6/30/03) major unclassified Earth Observation System platforms and sensors.

Future EOS Satellite Systems, an incomplete set of descriptions and links to planned unclassified Earth Observation Systems platforms and sensors.

Meteorological Satellite Systems, an incomplete set of links to information about weather and atmospheric science satellites.

Real-time Orbital Models, interactive Java applets called J-Track from NASA's Jet Propulsion Lab that model satellite orbits in 3-D and 2-D Very cool.

Free Wisconsin Landsat: search, browse, and download MSS, TM, ETM+ imagery for Wisconsin through WisconsinView.org.

Wisconsin MODIS, download of daily near-real time GeoTIFF Aqua and Terra data for Wisconsin, Lake Michigan, and Lake Superior (WTM83 projection).

Wisconsin Satellite Orbit Schedules, mission planning tools for predicting satellite overpass dates for Landsat-5, Landsat-7, Terra, and Aqua; with WRS-2 maps.
ASTER Overpass Predictor This tool is from the Land Processes Distributed Active Archive Center (LP-DAAC). It can be used to obtain an estimate of the next opportunities for ASTER data acquisition for a given latitude/longitude.

Global Landsat, finding, browsing, and getting landsat data for anywhere in the world explained in a nutshell with links to several useful well known and not so well known systems. Full price, discount, consortium trade, and occasionally a free download option.

Global MODIS, finding, browsing, and getting MODIS hdf imagery and products in a nutshell.

Tutorials, Demos, Projection Files, and other things

Connecting to the ArcSDE Spatial Database at ERSC: step-by-step examples and tutorials for ArcExplorer (free download for Windows and Mac OS X), ArcGIS 8.3, ArcView 3.x, ERDAS IMAGINE 8.6.

Download projection files here if you are looking for Wisconsin state or county coordinate system info for use in ArcGIS. Projection files now come with ArcGIS 9, but if you are still using ArcGIS 8.x or are defining your own, these .prj text files might be useful.

Spatial Resolution versus Image Area: an illustration of the fundamental trade-off between spatial resolution and coverage when file size is kept constant.

Fly-through Visualization Examples: several AVI movie examples representing the route from Beloit to Madison, Wisconsin using Landsat imagery draped over shaded relief DEMs (Digital Elevation Models).