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Amos-5
Amos-5 ( he, עמוס 5) was an Israeli commercial communications satellite, part of the AMOS series of satellites. It was developed and built for Spacecom by Information Satellite Systems Reshetnev (NPO PM), the largest Russian satellite producer, at a cost of US$157 million. The satellite was positioned at the 17° East longitude in the geostationary orbit. It was launched on 11 December 2011, 11:17:00 UTC from Baikonur Cosmodrome, Kazakhstan, atop a Proton-M / Briz-M launch vehicle. It provided coverage over the continent of Africa, as well as Europe and the Middle East. Mission Following failure of power generator 1, generator 2 was activated in May 2012. Power generator 2 also developed faults in September 2012 and October 2013 and the satellite's initial lifespan of 15 years was expected to be shortened by 11 months. However all communications with the AMOS-5 satellite were lost on 21 November 2015. The satellite was visualized in its expected location, moving in an u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spacecom
Spacecom, or Space Communication (), is an Israeli communications satellite operator in the Middle East, European Union and North America headquartered in the city of Ramat Gan, Israel. Spacecom operates two satellites at orbital position 4° West – Amos-3, AMOS-3 and AsiaSat 8, AMOS-7, one satellite at orbital position 65° East – Amos-4, AMOS-4, and one satellite at orbital position 17° East – Amos-5, AMOS-5. History Spacecom was established in 1993 with a defined goal of marketing AMOS-1 (satellite), AMOS-1, a newly built communication satellite manufactured by Israel Aerospace Industries (IAI). In 2003, Spacecom launched its second satellite, AMOS-2 (satellite), AMOS-2, owned entirely by the company. In 2008, the AMOS-3 satellite was launched to replace AMOS-1 and to increase coverage and traffic abilities. Until 2005, Spacecom was a private company controlled by four companies, including IAI and Eurocom Group. It went public on the Tel Aviv Stock Exchange in 2005. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AsiaSat 2
AsiaSat 2 was a Hong Kong communications satellite, which was owned, and was initially operated, by the Hong Kong based Asia Satellite Telecommunications Company. It was positioned in geostationary orbit at a longitude of 17° East of the Greenwich Meridian, on lease to Spacecom. It spent most of its operational life at 100.5° East, from where it was used to provide fixed satellite services, including broadcasting, audio and data transmission, to Asia and the Pacific Ocean. Satellite description AsiaSat 2 was built by Astro Space, which by the time of its launch had become part of Lockheed Martin. It is based on the AS-7000 satellite bus. At launch, it had a mass of , and a design life of thirteen years. It carries twenty six C-band and eight Ku-band transponders. Launch The launch of AsiaSat 2 was contracted to the China Great Wall Industry Corporation (CGWIC), and used a Long March 2E launch vehicle with a FG-46 upper stage. It was the maiden flight of the FG-46, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AMOS-17
AMOS-17 is an Israeli commercial communications satellite, part of the AMOS series of satellites. History Spacecom, the AMOS satellites operator, announced in December 2016 that it has signed a US$161 million contract with Boeing to build AMOS-17, which is to replace the failed AMOS-5 satellite. Satellite description AMOS-17 is a multi-band high-throughput satellite. It features a Ka-band, Ku-band anc C-band communications payload. It was built on the BSS-702MP satellite bus, transmitting in the Ka-band, Ku-band, and C-bands. It is a replacement for AMOS-5 and provides coverage over the continent of Africa, Europe and Middle East. Launch It was launched on 6 August 2019, at 23:23:00 UTC by a Falcon 9 launch vehicle, from Cape Canaveral, SLC-40, Florida. The mass of the payload was too large to allow the booster to be recovered for reuse, so the customer paid for an "expended" launch. Mission The satellite was reportedly aimed to be located at 17° East longitude ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AMOS-4 (satellite)
AMOS-4 is an Israeli commercial communications satellite, operated by Spacecom Satellite Communications, Tel Aviv-based, part of the AMOS series of satellites. History Spacecom, the AMOS satellites operator, announced in 2007 that it has signed an agreement to build and launch AMOS-4, with Israel Aerospace Industries. IAI constructed the satellite for approximately US$365 million. Spacecom paid US$100 million for AMOS-4. The Israeli government paid Spacecom US$265 million generated from a pre-launch deal to supply it with services on AMOS-4 over the satellite's full 12 year life span. AMOS-4 was originally considered as a candidate for launch on a SpaceX Falcon-9 launch vehicle. The satellite was later assigned to a Zenit-3SLB launch vehicle and was finally launched in August 2013. Launch It lifted off on 31 August 2013, 20:05:00 UTC from Baikonur Cosmodrome, Kazakhstan. The geostationary satellite provides direct-to-home television broadcasting, multimedia, broadband I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ekspress (satellite Bus)
The Ekspress (Russian: ) is a highly flexible satellite bus designed and manufactured by ISS Reshetnev. It is an unpressurized bus originally designed for GEO, but that has been adapted for medium Earth orbit and to highly elliptical orbit. It has different versions and has been used from civilian communications to satellite navigation. Platform variations The Ekspress bus has two main platforms: the 1000 light to medium version and the 2000, for heavy satellites. There was a project for a third platform, the 4000, but it has not yet been used. Ekspress-1000 Series The Ekspress-1000 (Russian: ) in its different variations offers an platform for small to medium satellites. It is a direct to GEO bus for total spacecraft weights from to and having a power production from 3 kW to 8 kW with a life expectancy of 15 years. It is designed for directly stacking up to 3 of the smallest version (Ekspress-1000K) or 2 of the bigger ones. *Ekspress-1000K (Russian: ): The sm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Briz (rocket Stage)
The Briz-K, Briz-KM and Briz-M (russian: Бриз-К, КM and M meaning ''Breeze-K, KM and M'') are Russian liquid-propellant rocket orbit insertion upper stages manufactured by Khrunichev State Research and Production Space Center and used on the Proton-M and Angara A5. The upper stages were also used on Rokot, one of Russia's smaller launchers, before its retirement in 2019. Characteristics Briz-K and Briz-KM Briz-K, GRAU index 14S12, is a single-piece structure with a conical tank compartment and the engine located in a recess in the fuel tank. Briz-KM (GRAU index 14S45) is an improved version of Briz-K. The Briz-K and Briz-KM were used as a third stage of the Rokot launch vehicles. Briz-M Briz-M, GRAU index 14S43, is designed for injecting large payloads into a low, medium-height or high geosynchronous orbit. Briz-M is a twin upper stage consisting of a core module (using Briz-KM as the baseline) and a jettisonable add-on toroidal tank surrounding the core. It is po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kazakhstan
Kazakhstan, officially the Republic of Kazakhstan, is a transcontinental country located mainly in Central Asia and partly in Eastern Europe. It borders Russia to the north and west, China to the east, Kyrgyzstan to the southeast, Uzbekistan to the south, and Turkmenistan to the southwest, with a coastline along the Caspian Sea. Its capital is Astana, known as Nur-Sultan from 2019 to 2022. Almaty, Kazakhstan's largest city, was the country's capital until 1997. Kazakhstan is the world's largest landlocked country, the largest and northernmost Muslim-majority country by land area, and the ninth-largest country in the world. It has a population of 19 million people, and one of the lowest population densities in the world, at fewer than 6 people per square kilometre (15 people per square mile). The country dominates Central Asia economically and politically, generating 60 percent of the region's GDP, primarily through its oil and gas industry; it also has vast mineral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geostationary Orbit
A geostationary orbit, also referred to as a geosynchronous equatorial orbit''Geostationary orbit'' and ''Geosynchronous (equatorial) orbit'' are used somewhat interchangeably in sources. (GEO), is a circular geosynchronous orbit in altitude above Earth's equator ( in radius from Earth's center) and following the direction of Earth's rotation. An object in such an orbit has an orbital period equal to Earth's rotational period, one sidereal day, and so to ground observers it appears motionless, in a fixed position in the sky. The concept of a geostationary orbit was popularised by the science fiction writer Arthur C. Clarke in the 1940s as a way to revolutionise telecommunications, and the first satellite to be placed in this kind of orbit was launched in 1963. Communications satellites are often placed in a geostationary orbit so that Earth-based satellite antennas do not have to rotate to track them but can be pointed permanently at the position in the sky where the sat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Israel
Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated on the southeastern shore of the Mediterranean Sea and the northern shore of the Red Sea, and shares borders with Lebanon to the north, Syria to the northeast, Jordan to the east, and Egypt to the southwest. Israel also is bordered by the Palestinian territories of the West Bank and the Gaza Strip to the east and west, respectively. Tel Aviv is the economic and technological center of the country, while its seat of government is in its proclaimed capital of Jerusalem, although Israeli sovereignty over East Jerusalem is unrecognized internationally. The land held by present-day Israel witnessed some of the earliest human occupations outside Africa and was among the earliest known sites of agriculture. It was inhabited by the Canaanites ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longitude
Longitude (, ) is a geographic coordinate that specifies the east–west position of a point on the surface of the Earth, or another celestial body. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda (λ). Meridians are semicircular lines running from pole to pole that connect points with the same longitude. The prime meridian defines 0° longitude; by convention the International Reference Meridian for the Earth passes near the Royal Observatory in Greenwich, England on the island of Great Britain. Positive longitudes are east of the prime meridian, and negative ones are west. Because of the Earth's rotation, there is a close connection between longitude and time measurement. Scientifically precise local time varies with longitude: a difference of 15° longitude corresponds to a one-hour difference in local time, due to the differing position in relation to the Sun. Comparing local time to an absolute measure of time allows ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communications Satellite
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. Many communications satellites are in geostationary orbit above the equator, so that the satellite appears stationary at the same point in the sky; therefore the satellite dish antennas of ground stations can be aimed permanently at that spot and do not have to move to track the satellite. Others form satellite constellations in low Earth orbit, where antennas on the ground have to follow the position of the satellites and switch between satellites frequently. The high frequency radio waves used for telecommunications links travel by line of sight and so are obstructed by the curve of the Earth. The purpose of communications sate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Launch Vehicle
A launch vehicle or carrier rocket is a rocket designed to carry a payload (spacecraft or satellites) from the Earth's surface to outer space. Most launch vehicles operate from a launch pad, launch pads, supported by a missile launch control center, launch control center and systems such as vehicle assembly and fueling. Launch vehicles are engineered with advanced aerodynamics and technologies, which contribute to large operating costs. An orbital spaceflight, orbital launch vehicle must lift its payload at least to the boundary of space, approximately and accelerate it to a horizontal velocity of at least . Suborbital spaceflight, Suborbital vehicles launch their payloads to lower velocity or are launched at elevation angles greater than horizontal. Practical orbital launch vehicles are multistage rockets which use chemical propellants such as Solid-propellant rocket, solid fuel, liquid hydrogen, kerosene, liquid oxygen, or Hypergolic propellants. Launch vehicles are cla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
