FIELD: physics, measurement.
SUBSTANCE: device for choosing objects to be observed from an orbiting spacecraft (SC). Device for choosing objects to be observed from an orbiting spacecraft comprises a globe with a map on it, two rings embracing the globe; the first ring is fixed above the globe pole points and can be rotated around the globe rotation axis and the second one is set in the globe equator plane and fixed at the first ring in the points of its crossing the globe equator plane. Following units are additionally mounted: an element in the form of a spiral turn simulating an orbit turn of the SC moving around the planet with the planet map being represented on the globe and an element with its outline projection on the globe surface forming a circle which is limiting a segment with a half-angle on the globe surface. The element with its outline projection on the globe surface forming a circle is made as a semitransparent spherical segment with a slot from the spherical segment edge to its centre.
EFFECT: providing for representing on the globe the areas observable from the SC in various positions of the SC on the considered SC orbit turn.
2 cl, 5 dwg
