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Broadcasting Satellite System Corporation
The Broadcasting Satellite System Corporation (B-SAT) is a Japanese corporation established in April 1993 to procure, manage and lease transponders on communications satellites. Its largest stockholder, owning 49.9%, is NHK, the Japan Broadcasting Corporation. In 1994, it was ranked by ''Space News'' as the world's 19th largest fixed satellite operator. Satellite fleet The B-SAT fleet has an extensive history. This is an overview of the satellites. Former satellites These satellites were managed by Broadcasting Satellite System Corporation but are now decommissioned. BSAT-1a BSAT-1a was an HS-376 based satellite with 4 active plus 4 spares Ku-band transponders. It was successfully launched on 16 April 1997 aboard an Ariane 44LP along Thaicom 3. BSAT-1b BSAT-1b was an HS-376 based satellite with 4 active plus 4 spares Ku-band transponders. It was successfully launched on 28 April 1998 aboard an Ariane 44P along Nilesat 101. BSAT-2a BSAT-2a was manufactured by O ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arianespace
Arianespace SA is a French company founded in 1980 as the world's first commercial launch service provider. It undertakes the operation and marketing of the Ariane programme. The company offers a number of different launch vehicles: the heavy-lift Ariane 5 for dual launches to geostationary transfer orbit, the Soyuz-2 as a medium-lift alternative, and the solid-fueled Vega for lighter payloads. , Arianespace had launched more than 850 satellites in 287 launches over 41 years. The first commercial flight managed by the new entity was Spacenet F1 launched on 23 May 1984. Arianespace uses the Guiana Space Centre in French Guiana as its main launch site. Through shareholding in Starsem, it can also offer commercial Soyuz launches from the Baikonur spaceport in Kazakhstan. It has its headquarters in Évry-Courcouronnes, Essonne, France. History The formation of Arianespace SA is closely associated with the desire of several European nations to pursue joint collaboration in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BSAT-1b
BSAT-1b was a geostationary communications satellite designed and manufactured by Hughes (now Boeing) on the HS-376 platform. It was originally ordered and operated by the Broadcasting Satellite System Corporation (B-SAT). It was used as backup of BSAT-1a to broadcast television channels for NHK and WOWOW over Japan. It had a pure Ku band payload and operated on the 110°E longitude until it was replaced, along its twin BSAT-1a, by BSAT-3a. Satellite description The spacecraft was designed and manufactured by Hughes on the HS-376 satellite bus. This spin-stabilized platform had two main sections. One, the spinning section, was kept rotating at 50 rpm to maintain attitude, and a despun section that was used by the payload to maintain radio coverage. The spinning section included the Star-30BP Apogee kick motor, most of the attitude control, the power subsystem and the command and telemetry subsystems. The despun section contained the communications payload, including the an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HS-376
The Boeing 376 (sometimes referred to as the BSS-376, and previously as the HS-376) is a communications satellite bus introduced in 1978 by Hughes Space and Communications Company. It was a spin-stabilized bus that the manufacturer claims was the first standardized platform. Design The satellite bus was designed and manufactured by Hughes. This spin-stabilized platform had two main sections. The spinning section was kept rotating at 50 rpm to maintain attitude, and a despun section was used by the payload to maintain radio coverage. The spinning section included the apogee kick motor, most of the attitude control, the power subsystem and the command and telemetry subsystems. The despun section contained the communications payload, including the antennas and transponders. The stock version had a launch mass of , a mass of after reaching geostationary orbit and an 8 to 10-year design life. When stowed for launch, its dimensions were in height and in diameter. With its sol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BSAT-1a
BSAT-1a was a geostationary communications satellite designed and manufactured by Hughes (now Boeing) on the HS-376 platform. It was originally ordered and operated by the Broadcasting Satellite System Corporation (B-SAT). It was used as the main satellite to broadcast television channels for NHK and WOWOW over Japan. It had a pure Ku band payload and operated on the 110°E longitude until it was replaced, along its backup BSAT-1b, by BSAT-3a. On 3 August 2010, it was decommissioned and placed on a graveyard orbit. Satellite description The spacecraft was designed and manufactured by Hughes on the HS-376 satellite bus. This spin-stabilized platform had two main sections. One, the spinning section, was kept rotating at 50 rpm to maintain attitude, and a despun section that was used by the payload to maintain radio coverage. The spinning section included the Star-30BP Apogee kick motor, most of the attitude control, the power subsystem and the command and telemetry subsystems. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intelsat 2
Intelsat 2, formerly PAS-2, was a communications satellite operated by Intelsat which spent most of its operational life serving the Pacific Rim market from a longitude of 169° East. Launched in July 1994, the satellite was operated by PanAmSat until it merged with Intelsat in 2006. The spacecraft was renamed, along with the rest of PanAmSat's fleet, on 1 February 2007. Satellite description PAS-2 was constructed by the Hughes Aircraft Corporation, based on the HS-601 satellite bus. It had a mass at launch of , which decreased to around by the time it was operational. Designed for an operational life of 15 years, the spacecraft was equipped with 20 C-band and 20 Ku-band transponders. Its two solar panels, which had a span of generated 4.7 kW of power when the spacecraft first entered service, which was expected to drop to around 4.3 kW by the end of the vehicle's operational life. Launch Arianespace launched PAS-2, using an Ariane 4 launch vehicle, flight numb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AS-3000 , a 12 gauge select fire shotgun.
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AS3 or AS-3 may refer to: * ActionScript 3.0, ECMAScript * AS3 (networking), Applicability Statement 3, a specification standard by which applications communicate for Electronic Data Interchange * AS-3 Kangaroo, NATO reporting name for Russian Raduga Kh-20 cruise missile. * '' RuPaul's Drag Race All Stars 3'', the third season of television series '' RuPaul's Drag Race: All Stars''. * Smith & Wesson AS The Smith & Wesson AS (Assault Shotgun) is a prototype 12-gauge select-fire shotgun manufactured by Smith & Wesson. Its layout is similar to the M16 rifle and fed from a 10-round magazine. The AS was a rival to the Heckler & Koch HK CAWS.The Direc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BS-3N
Yuri, also known as Broadcasting Satellite or BS, was a series of Japanese direct broadcast satellites. The first satellite of this series, called BSE or Yuri 1, was launched in 1978. The last BS series satellite, BS-3b (Yuri 3b), was launched in 1991. Early models The 350 kg BSE was followed in 1984 and 1986 by the operational and essentially identical BS-2a and BS-2b satellites, respectively. Each spacecraft carried two active and one spare 100 W. 14/12 GHz transponder. Built by EURO with assistance from ASR, the BS-2 series satellites were designed for five years of operation. BS-2a was moved to a graveyard orbit in 1989, as was BS-2b in 1992. BS satellites BS satellites were used for Direct-To-Home television services in Japan. Japanese satellite television, which uses an analog format, started with test broadcasts carried out by the semigovernmental NHK (Japan Broadcasting Corporation) in 1984. At the time, direct satellite TV reception (DTH) was obtainable wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maxar Technologies
Maxar Technologies Inc. is a space technology company headquartered in Westminster, Colorado, United States, specializing in manufacturing communication, Earth observation, radar, and on-orbit servicing satellites, satellite products, and related services. DigitalGlobe and MDA Holdings Company merged to become Maxar Technologies on October 5, 2017. Maxar Technologies is the parent holding company of Space Systems Loral, headquartered in Palo Alto, California, US; DigitalGlobe, headquartered in Westminster, Colorado, US; and Radiant Solutions, headquartered in Herndon, Virginia, US. Maxar Technologies is dual-listed on the Toronto Stock Exchange and New York Stock Exchange as MAXR. In May 2019, the company was selected as the provider of the power and propulsion element for the Lunar Gateway developed by NASA. On December 30, 2019, the company announced that it had entered into a definitive agreement to sell MDA's assets to a consortium of financial sponsors led by Northe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SSL 1300
The SSL 1300, previously the LS-1300 and the FS-1300, is a satellite bus produced by Maxar Technologies. Total broadcast power ranges from 5 to 25 kW, and the platform can accommodate from 12 to 150 transponders. The SSL 1300 is a modular platform and Maxar Technologies no longer reports designators for sub-versions, such as: 1300E, 1300HL, 1300S, 1300X. First available in the late 1980s, the SSL 1300 platform underwent revision multiple times over its design life, all the while remaining a popular communications platform. The earliest models provided 5,000 RF watts of transmitter power, weighed 5,500 kg, and required a 4-meter diameter launch fairing. Newer models provide double that, approximately 10,000 RF watts of transmitter power, weigh 6,700 kg, and require a 5-meter diameter launch fairing. SSL stated that they would use electric propulsion for North-South station keeping for the first time on the MBSat in 2004. The subsystem was supplied by International ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SSL (company)
SSL, formerly Space Systems/Loral, LLC (SS/L), of Palo Alto, California, is a wholly owned manufacturing subsidiary of Maxar Technologies. SSL designs and builds satellites and space systems for a wide variety of government and commercial customers. Its products include high-powered direct-to-home broadcast satellites, commercial weather satellites, digital audio radio satellites, Earth observation satellites and spot-beam satellites for data networking applications. History The company was founded as the Western Development Laboratories (WDL) of Philco (Philco-Ford since 1966). The Space Systems Division was made a stand-alone Division of Aeronutronic/Ford Aerospace/ and was acquired by Loral Corp. in 1990 for $715 million from Ford Motor Company, and renamed Space Systems/Loral. All other divisions of Ford Aerospace including Western Development Labs now located in San Jose were also acquired by Loral at that time. In 2012 Space Systems/Loral was acquired by the Canadi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astra 1N
Astra 1N is one of the Astra communications satellites owned and operated by SES and is positioned at the Astra 19.2°E orbital position. It was launched in 2011 and is the fourth satellite to be built for Astra by Astrium (now Airbus Defence and Space) and the 46th SES satellite in orbit, and entered commercial service at 28.2° East on 24 October 2011. Satellite description The satellite was originally designed to provide digital television and radio broadcast services across Europe from the Astra 19.2°E position, in particular the German, French and Spanish markets, alongside the Astra 1KR, Astra 1L, and Astra 1M satellites already operating there. However, it was originally launched to the Astra 28.2°E position as a temporary replacement for Astra 2D. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
