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Mapping Satellite Data
Instructions for Students

To Pinpoint the Eagle's Latitude

Use the Chart for
Latitude

Column A: Record latitude here.
Column B: Find the nearest latitude line south of the eagle, and record that number here. Put a transparency on top of your map. Draw a line along this latitude line.
Column C: The eagle is a fraction of a degree north of the line you just drew for B. Record the fraction as a decimal in this column.
Column D: Measure the scale of your map for latitude. Record the scale here in mm per degree latitude.
Column E: Find out how far north (in mm) the eagle is located from the latitude line you drew for (B). To do this, multiply the decimal in column C by the scale of your map D and record the product here. Now draw a line this distrance north of the line you drew for (B). The eagle is located on this latitude line.

To Pinpoint the Eagle's Longitude

Use the Chart for
Longitude

Column F: Record longitude here
Column G: Find the nearest longitude line east of the eagle, and record that number here. Put the transparency back on your map. Draw a line along this longitude line.
Column H: The eagle is a fraction of a degree west of the line you just drew for G. Record the fraction as a decimal in this column.
Column I: Measure the scale of your map for longitude. Record the scale here in mm per degree longitude.
Column J: Find out how far west (in mm) the eagle is located from the longitude line you drew for (G). To do this, multiply the decimal in column (H) by the scale of your map (I) and record the product here. Now draw a line this distrance west of the line you drew for (G). The eagle is located on this longitude line, exactly where it intersects the latitude line.

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