Kosmos 745
Encyclopedia
Kosmos 745 also known as DS-P1-Yu #76, was a Soviet
satellite
which was launched in 1975 as part of the Dnepropetrovsk Sputnik
programme. It was a 400 kilograms (881.8 lb) spacecraft, which was built by the Yuzhnoye Design Bureau
, and was used as a radar calibration target for anti-ballistic missile
tests.
A Kosmos-2I
63SM carrier rocket was used to launch Kosmos 745 from Site 133/1
of the Plesetsk Cosmodrome
. The launch occurred at 12:05 GMT on 24 June 1975, and resulted in the successfully insertion of the satellite into low Earth orbit
. Upon reaching orbit, the satellite was assigned its Kosmos
designation, and received the International Designator
1975-058A. The North American Aerospace Defense Command
assigned it the catalogue number
07982.
Kosmos 745 was the seventy-seventh of seventy nine DS-P1-Yu satellites to be launched, and the seventieth of seventy two to successfully reach orbit. It was operated in an orbit with a perigee
of 260 kilometres (161.6 mi), an apogee
of 499 kilometres (310.1 mi), 70.9 degrees of inclination
, and an orbital period
of 92.1 minutes. It remained in orbit until it decayed
and reentered the atmosphere on 12 March 1976.
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....
satellite
Satellite
In the context of spaceflight, a satellite is an object which has been placed into orbit by human endeavour. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as the Moon....
which was launched in 1975 as part of the Dnepropetrovsk Sputnik
Dnepropetrovsk Sputnik
Dnepropetrovsk Sputnik , also known as DS, was a series of satellites launched by the Soviet Union between 1961 and 1982. DS satellites were used for a number of missions, including technological and scientific research, and radar tracking targets for anti-satellite weapons and anti-ballistic...
programme. It was a 400 kilograms (881.8 lb) spacecraft, which was built by the Yuzhnoye Design Bureau
Yuzhnoye Design Bureau
Yuzhnoye Design Bureau , located in Dnipropetrovsk, Ukraine, is a designer of satellites and rockets, and formerly of Soviet intercontinental ballistic missiles established by Mikhail Yangel. Yuzhnoye's OKB designation was OKB-586....
, and was used as a radar calibration target for anti-ballistic missile
Anti-ballistic missile
An anti-ballistic missile is a missile designed to counter ballistic missiles .A ballistic missile is used to deliver nuclear, chemical, biological or conventional warheads in a ballistic flight trajectory. The term "anti-ballistic missile" describes any antimissile system designed to counter...
tests.
A Kosmos-2I
Kosmos-2I
Kosmos-2I is the designation applied to two Soviet carrier rockets, members of the R-12 family, which were used to orbit satellites between 1961 and 1977. They were superseded by the R-14 derived Kosmos-3 and Kosmos-3M.-References:* http://www.astronautix.com/lvs/koss63s1.htm*...
63SM carrier rocket was used to launch Kosmos 745 from Site 133/1
Plesetsk Cosmodrome Site 133
Site 133, also known as Raduga , is a launch complex at the Plesetsk Cosmodrome in Russia. It is used by Rockot, and previously Kosmos carrier rockets. It consists of a single pad, originally designated 133/1, and later 133/3....
of the Plesetsk Cosmodrome
Plesetsk Cosmodrome
Plesetsk Cosmodrome is a Russian spaceport, located in Arkhangelsk Oblast, about 800 km north of Moscow and approximately 200 km south of Arkhangelsk.-Overview:...
. The launch occurred at 12:05 GMT on 24 June 1975, and resulted in the successfully insertion of the satellite into low Earth orbit
Low Earth orbit
A low Earth orbit is generally defined as an orbit within the locus extending from the Earth’s surface up to an altitude of 2,000 km...
. Upon reaching orbit, the satellite was assigned its Kosmos
Cosmos (satellite)
Kosmos is a designation given to a large number of satellites operated by the Soviet Union and subsequently Russia. Kosmos 1, the first spacecraft to be given a Kosmos designation, was launched on March 16, 1962....
designation, and received the International Designator
International Designator
The International Designator, also known as COSPAR designation, and in the United States as NSSDC ID, is an international naming convention for satellites...
1975-058A. The North American Aerospace Defense Command
North American Aerospace Defense Command
North American Aerospace Defense Command is a joint organization of Canada and the United States that provides aerospace warning, air sovereignty, and defense for the two countries. Headquarters NORAD is located at Peterson AFB, Colorado Springs, Colorado...
assigned it the catalogue number
Satellite Catalog Number
The Satellite Catalog Number is a sequential 5-digit number assigned by USSPACECOM to all Earth orbiting satellites in order of identification. Before USSPACECOM, the catalog was maintained by NORAD...
07982.
Kosmos 745 was the seventy-seventh of seventy nine DS-P1-Yu satellites to be launched, and the seventieth of seventy two to successfully reach orbit. It was operated in an orbit with a perigee
Apsis
An apsis , plural apsides , is the point of greatest or least distance of a body from one of the foci of its elliptical orbit. In modern celestial mechanics this focus is also the center of attraction, which is usually the center of mass of the system...
of 260 kilometres (161.6 mi), an apogee
Apsis
An apsis , plural apsides , is the point of greatest or least distance of a body from one of the foci of its elliptical orbit. In modern celestial mechanics this focus is also the center of attraction, which is usually the center of mass of the system...
of 499 kilometres (310.1 mi), 70.9 degrees of inclination
Inclination
Inclination in general is the angle between a reference plane and another plane or axis of direction.-Orbits:The inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit...
, and an orbital period
Orbital period
The orbital period is the time taken for a given object to make one complete orbit about another object.When mentioned without further qualification in astronomy this refers to the sidereal period of an astronomical object, which is calculated with respect to the stars.There are several kinds of...
of 92.1 minutes. It remained in orbit until it decayed
Orbital decay
Orbital decay is the process of prolonged reduction in the altitude of a satellite's orbit.This can be due to drag produced by an atmosphere due to frequent collisions between the satellite and surrounding air molecules. The drag experienced by the object is larger in the case of increased solar...
and reentered the atmosphere on 12 March 1976.