LANDSAT 
SKYLAB 
Figure 1. A comparison of LANDSAT color composite image (ID-1265-15503) 
obtained April 17, 1973 with SKYLAB S190B, color infrared aerial photo 
S1-4, 93-153 taken January 22, 1974. Both images have been made from 
panchromatic negatives enlarged to a scale of 1:500,000. Scene is 
@ e near Birmingham, Alabama (A). Note the better resolution in the lower 
photo of small roads and agricultural field boundaries. Water bodies 
have more contrast on the LANDSAT image and are easier to distinguish; 
part of the difference is due to seasonal change.