The system offers extensive capabilities for "shade printing" to aid in the determination of GCPs. Affine, two dimensional least squares polynominal and spacecraft attitude modeling tech¬niques for geometric mapping are provided. Entire scenes or selected quadrilaterals may be rectified. Resampling through nearest neigneor or cubic con¬volution at user designated intervals is available. The output products are in the form of digital tape in band interleaved, single bind or CCT format in a rotated UTM projection. The system was designed and implemented on large scale IBM 360 computers with at least 300-500K bytes of memory for user application program and five nine track tapes plus direct access storage.
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