Master TIFF Images
Acquired by NASA High Altitude Mission Program
September 28, 1999

Two passes were made over the San Pedro River Valley from south to north. The first pass (High Pass) was collected at 19,800 feet above ground level (AGL). The second pass (Low Pass) was collected at 6,600 feet AGL.
The digital data was collected with the MASTER sensor.
For the High Pass the pixel size resolution represents a ground distance of 15 meters.
For the Low Pass the pixel size resolution represents a ground distance of 6 meters.

Natural Color Composites
Low Pass
High Pass

These images depict the red, green, and blue portions of the electromagnetic spectrum.  This composite is essentially what the human eye sees.

False Color Infrared Composites
Low Pass
High Pass

These images are composites of the near infrared, red and green bands.   They emphasize vegetation with healthy vegetation portrayed in various intensities of red.

Mid-Infrared Composites
Low Pass
High Pass

These images are comprised of the mid-infrared, near-infrared, and red bands.  This is the standard presentation for the analysis of rock, soils, and vegetation.  It’s most appropriate application is over arid lands with limited vegetation cover.  The vegetation is shown in bright green.

Principle Components Composite
High Pass

 This image depicts a statistical technique that maximizes the variations of the spectral response from the surface of the earth for all 50 bands of the MASTER scanner.  The digital responses are combined into discrete groups with a color applied to each group.  The colors mean nothing, as they are not related to any particular surface feature at the time of application.