Direct broadcast satellites : policies, prospects, and potential competition /

Item 126-D-3

Popular astronomy : A concise elementary treatise on the sun, planets, satellites and comets /

Mode of access: Internet.

Obtaining timely crop area estimates using ground-gathered and LANDSAT data /

Issued Aug. 1979.

Tables écliptiques des satellites de Jupiter : d'après la théorie de leurs attractions mutuelles et les constantes déduites des observations /

Mode of access: Internet.

A hybrid methodology for detecting cartographically significant features using Landsat TM imagery /

"ETL-0589."

Multispectral image maps from Landsat thematic mapper data /

"September 1991."

Naval Satellite Operations Center : Navy satellites for sea control.

Shipping list no.: 90-406-P.

Communications satellites : challenges of the future.

Mode of access: Internet.