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use this web site http://webgis2.wr.usgs.gov/Venus_Global_GIS/ Find Mead with &

ID: 804297 • Letter: U

Question

use this web site http://webgis2.wr.usgs.gov/Venus_Global_GIS/

Find Mead with & . The search result may list several features and several thumbtacks will appear. In the results list (left menu) scroll down until you find "Mead". You can click on the check box next to "Mead" repeatedly to make the thumbtack appear and reappear (flash on and off). As you zoom in, this will help you locate the crater. Alternatively, while increasing the zoom, turn on names with "Nomenclature" (left menu) to identify the crater. Record its coordinates: Coordinates: ___________________ Note the double-ringed structure of this crater. Find the diameter in km of the outer ring: Diameter: __________________ km

Explanation / Answer

Mead double ring structure Crater measurements

Coordinates of Mead Crater: Long. 57.2°    Latit. 12.5°

Diameter of Mead Cater in km of the outer ring: Diameter: 218.56 km