Kosmos 2471 (russian: Космос 2471 meaning ''Cosmos 2471''), also known as Glonass-K1 No. 11L or Glonass-K No. 701, was a Russian

navigation Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.Bowditch, 2003:799. The field of navigation includes four general categories: land navigation, ...

satellite A satellite or artificial satellite is an object intentionally placed into orbit in outer space. Except for passive satellites, most satellites have an electricity generation system for equipment on board, such as solar panels or radioi ...

which was launched in 2011. The first

Glonass-K GLONASS-K is the latest satellite design intended as a part of the Russian GLONASS radio-based satellite navigation system. Developed by Information Satellite Systems Reshetnev, ISS Reshetnev (Information Satellite Systems Reshetnev) and first ...

satellite to be launched, it was one of two Glonass-K1 spacecraft which served as prototypes for the operational Glonass-K2 spacecraft. Kosmos 2471 is a 935 kg satellite built by ISS Reshetnev based on the Ekspress-1000A

satellite bus A satellite bus (or spacecraft bus) is the main body and structural component of a satellite or spacecraft, in which the payload and all scientific instruments are held. Bus-derived satellites are opposed to specially produced satellites. Bus- ...

. The spacecraft has three-axis stabilisation to keep it in the correct orientation, and broadcast signals in the L1, L2 and L3 navigation bands for Russian military and commercial users. In addition to its navigation payloads, the satellite also carries a

Cospas-Sarsat The International Cospas-Sarsat Programme is a satellite-aided search and rescue (SAR) initiative. It is organized as a treaty-based, nonprofit, intergovernmental, humanitarian cooperative of 45 nations and agencies (see infobox). It is dedi ...

search and rescue payload. The satellite is located in a

medium Earth orbit A medium Earth orbit (MEO) is an Earth-centered orbit with an altitude above a low Earth orbit (LEO) and below a high Earth orbit (HEO) – between above sea level.

with an

apogee An apsis (; ) is the farthest or nearest point in the orbit of a planetary body about its primary body. For example, the apsides of the Earth are called the aphelion and perihelion. General description There are two apsides in any ell ...

of , a

perigee An apsis (; ) is the farthest or nearest point in the orbit of a planetary body about its primary body. For example, the apsides of the Earth are called the aphelion and perihelion. General description There are two apsides in any ell ...

of , and 64.8° of

inclination Orbital inclination measures the tilt of an object's orbit around a celestial body. It is expressed as the angle between a reference plane and the orbital plane or axis of direction of the orbiting object. For a satellite orbiting the Eart ...

. It is equipped with two solar panels to generate power. It entered service by the end of 2011. Kosmos 2471 was launched from Site 43/4 at the

Plesetsk Cosmodrome Plesetsk Cosmodrome ( rus, Космодром «Плесецк», r=Kosmodrom "Plesetsk", p=kəsmɐˈdrom plʲɪˈsʲet͡sk) is a Russian spaceport located in Mirny, Arkhangelsk Oblast, about 800 km north of Moscow and approximately 200 ...

northwest Russia Northwest Russia, or the Russian North is the northern part of western Russia. It is bounded by Norway, Finland, the Arctic Ocean, the Ural Mountains and the east-flowing part of the Volga. The area is roughly coterminous with the Northwestern ...

. A Soyuz-2.1b carrier rocket with a

Fregat Fregat (russian: Фрегат, ''frigate'') is an upper stage developed by NPO Lavochkin in the 1990s, which is used in some Soyuz and Zenit launch vehicles, but is universal and can be used as a part of a medium and heavy class launch vehic ...

upper stage was used to perform the launch, which took place at 03:07:15 UTC on 26 February 2011. The launch successfully placed the satellite into a

Medium Earth orbit A medium Earth orbit (MEO) is an Earth-centered orbit with an altitude above a low Earth orbit (LEO) and below a high Earth orbit (HEO) – between above sea level.

. It subsequently received its Kosmos designation, and the

International Designator The International Designator, also known as COSPAR ID, is an international identifier assigned to artificial objects in space. It consists of the launch year, a three-digit incrementing launch number of that year and up to a three-letter code repr ...

2011-009A. The

United States Space Command United States Space Command (USSPACECOM or SPACECOM) is a unified combatant command of the United States Department of Defense, responsible for military operations in outer space, specifically all operations 100 kilometers (62 miles) and grea ...

assigned it the

Satellite Catalog Number The Satellite Catalog Number (SATCAT, also known as NORAD (North American Aerospace Defense) Catalog Number, NORAD ID, USSPACECOM object number or simply catalog number, among similar variants) is a sequential nine-digit number assigned by the Un ...

37372. Kosmos 2471 remained in service for ten years. On 11 November 2021, the satellite was decommissioned and removed from the operational GLONASS constellation.

References

{{GLONASS Spacecraft launched in 2011 Spacecraft decommissioned in 2021 Spacecraft launched by Soyuz-2 rockets 2011 in Russia Kosmos satellites GLONASS satellites