TRADOC Pam 525-7-4
(1) Space is a distinct operating environment that is different from land, air, and sea domains. Space assets transcend geographical borders unimpeded. Since there are no recognized political boundaries in space, satellites enjoy open skies global coverage. Although space transcends
geographical borders, it is the subject of international and domestic laws, regulations, and national policy. While there is no formal definition of where space begins, the treaty known as the,
Outer Space Treaty of 1967, describes the lower boundary of space as the lowest perigee attainable by an orbiting space vehicle. The fundamental difference between the space and air domains is that objects in space orbit the earth while objects in the air domain flyover the earth. In this concept orbital space is defined as that region above km mean sea level (MSL).
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Figure 2-1 provides an illustration of the region of orbital space.
(2) Operations in space area primary enabler of the information revolution. Space operations and information management capabilities are interdependent. Space systems are critical in moving high
volumes of data at great speed, over vast distances to enable the formation of interactive, globally networked databases that provide support to industry, government, and our military forces. The Army must identify its requirements in the development of these systems early, in order to leverage their capabilities in support of Army future Modular Force operations.
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