BOARD FOR SELECTING OBSERVATION OBJECTS FROM ORBITAL SPACECRAFT Russian patent published in 2013 - IPC G01C21/24 

FIELD: physics.

SUBSTANCE: invention can be used to determine and select observation objects onboard an orbital spacecraft moving on a near-circular orbit. The board for selecting observation objects from an orbital spacecraft has a flexible tape with a map of the earth's surface, a semitransparent plate placed over said tape having an image of half the orbit pass of the spacecraft between ascending and descending nodes, and a device for moving the tape along the plate with two rollers spaced apart and mounted parallel to each other. The tape is stretched onto the rollers with possibility of movement thereof along the equator line. The map of the earth's surface is divided into two parts on the equator line. Part of the map with the image of the northern hemisphere and part of the map with the image of the southern hemisphere are arranged in series on the tape. The equator line of the part of the map with the image of the northern hemisphere is a continuation of the equator line of the part of the map with the image of the southern hemisphere. The device for moving the tape along the plate has processor rollers placed in parallel between the first and second rollers. The tape is stretched onto said rollers and the newly introduced process rollers. The size of the tape and the plates along the direction perpendicular to the equator is equal to the length of the latitude line of the map showing one of the hemispheres.

EFFECT: smaller size of the board.

3 dwg