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Paksat-1R
Paksat-1R (or Paksat-1 Replacement) is a geosynchronous, communications satellite that was manufactured by China Great Wall Industry Corporation (CGWIC) and operated by the Space and Upper Atmosphere Research Commission (SUPARCO), an executive space authority of the Government of Pakistan. History In December 2001, the SUPARCO negotiated to lease the Palapa-C1 satellite and designated it as Paksat-1 in an attempt to avert the orbital position crises. It was acquired after an anomaly in the electrical system of the satellite on 24 November 1998. A module for controlling the hydro accumulators had failed and an American contractor, Hughes Global Services (HGS), managed to develop a strategy that allowed the continued use of the satellite in geostationary orbit. The satellite was eventually leased by Pakistan as Paksat-1 at 38° East in geostationary orbit and had been active since December 2002. During this time, the SUPARCO began developing the geosynchronous satellite to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SUPARCO
The Space & Upper Atmosphere Research Commission (SUPARCO) ( ur, ) is the :Pakistan federal departments and agencies, executive and List of government space agencies, national space agency of Pakistan. It is headquartered at the capital city of Islamabad in the northern part of Pakistan with additional facilities at the University of Punjab in Lahore. Established in 1961 to assist development of space science and research in Pakistan, agency started to function only in 1964. It started to import and launch sounding rockets in the early 1960s and attained capability to fabricate rocket engines. However, the agency kept a low profile for the initial 30–35 years of its existence with limited progress in field of research and its progress in satellite technology also started relatively late. The country's first satellite, ''Badr-I'', was built by the SUPARCO and launched from the Xichang Satellite Launch Center, China on July 16, 1990, which provided Pakistani scientists with v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space And Upper Atmosphere Research Commission
The Space & Upper Atmosphere Research Commission (SUPARCO) ( ur, ) is the executive and national space agency of Pakistan. It is headquartered at the capital city of Islamabad in the northern part of Pakistan with additional facilities at the University of Punjab in Lahore. Established in 1961 to assist development of space science and research in Pakistan, agency started to function only in 1964. It started to import and launch sounding rockets in the early 1960s and attained capability to fabricate rocket engines. However, the agency kept a low profile for the initial 30–35 years of its existence with limited progress in field of research and its progress in satellite technology also started relatively late. The country's first satellite, ''Badr-I'', was built by the SUPARCO and launched from the Xichang Satellite Launch Center, China on July 16, 1990, which provided Pakistani scientists with valuable experience in telemetry and other satellite technologies. SUPARCO pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space & Upper Atmosphere Research Commission
The Space & Upper Atmosphere Research Commission (SUPARCO) ( ur, ) is the executive and national space agency of Pakistan. It is headquartered at the capital city of Islamabad in the northern part of Pakistan with additional facilities at the University of Punjab in Lahore. Established in 1961 to assist development of space science and research in Pakistan, agency started to function only in 1964. It started to import and launch sounding rockets in the early 1960s and attained capability to fabricate rocket engines. However, the agency kept a low profile for the initial 30–35 years of its existence with limited progress in field of research and its progress in satellite technology also started relatively late. The country's first satellite, ''Badr-I'', was built by the SUPARCO and launched from the Xichang Satellite Launch Center, China on July 16, 1990, which provided Pakistani scientists with valuable experience in telemetry and other satellite technologies. SUPARCO pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PAKSAT International
Paksat-1, (Other former designation as Palapa-C1, HGS-3 and Anatolia-1), was a geosynchronous and communications satellite built and owned by the Boeing Company, leased to the Space & Upper Atmosphere Research Commission (SUPARCO) and renamed Paksat-1. It was successfully put on orbit on 1 February 1996 as Palapa-C1 for Indonesia as its original customer. But, after the technical problems, the satellite was leased to SUPARCO at an orbital location of 38° East longitude in December 2002. Paksat-1 offers the C-band and Ku-band coverage in over 75 countries across Europe, Africa, Middle East, South and Central Asia. Its customers included government organizations, television broadcasters, telecommunications companies, data and broadband internet service providers. History Palapa-C1 PT Satelit Palapa Indonesia (SATELINDO) chose Hughes in April 1993. It was built by Hughes Space and Communications Company for Indonesian telecommunications provider PT Satelit Palapa Indonesia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paksat-1
Paksat-1, (Other former designation as Palapa-C1, HGS-3 and Anatolia-1), was a Geosynchronous satellite, geosynchronous and communications satellite built and owned by the Boeing, Boeing Company, leased to the Space & Upper Atmosphere Research Commission (SUPARCO) and renamed Paksat-1. It was successfully put on orbit on 1 February 1996 as Palapa-C1 for Indonesia as its original customer. But, after the technical problems, the satellite was leased to SUPARCO at an orbital location of 38° East longitude in December 2002. Paksat-1 offers the C band (IEEE), C-band and Ku band, Ku-band coverage in over 75 countries across Europe, Africa, Middle East, South and Central Asia. Its customers included government organizations, History of television#Mechanical television, television broadcasters, telecommunications companies, data and broadband internet service providers. History Palapa-C1 PT Satelit Palapa Indonesia (SATELINDO) chose Hughes in April 1993. It was built by Hughes Aircr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AsiaSat 4
AsiaSat 4 was a Hong Kong communications satellite, which was owned, and was initially operated, by the Hong Kong based AsiaSat, Asia Satellite Telecommunications Company (AsiaSat). It was positioned in geostationary orbit at a longitude of 122° East of the Prime meridian (Greenwich), Greenwich Meridian. It spent most of its operational life at 122° 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 4 was built by Hughes Space and Communications, for US$220 million, which by the time of its launch had become part of Boeing Satellite Development Center, Boeing Satellite Systems. It is based on the Boeing 601 , HS-601HP satellite bus. At launch, it had a mass of , and a design life of fifteen years. It carries twenty eight C band (IEEE), C-band and twenty Ku band, Ku-band Transponder (satellite communications), transponders. It was planned for late 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long March 3B
The Long March 3B (, ''Chang Zheng 3B''), also known as the CZ-3B and LM-3B, is a Chinese orbital launch vehicle. Introduced in 1996, it is launched from Launch Area 2 and 3 at the Xichang Satellite Launch Center in Sichuan. A three-stage rocket with four strap-on liquid rocket boosters, it is currently the second most powerful member of the Long March (rocket family), Long March rocket family after the Long March 5 and the heaviest of the Long March 3 rocket family, and is mainly used to place communications satellites into geosynchronous orbits. An enhanced version, the Long March 3B/E or G2, was introduced in 2007 to increase the rocket's geostationary transfer orbit (GTO) cargo capacity and lift heavier geosynchronous orbit (GEO) communications satellites. The Long March 3B also served as the basis for the medium-capacity Long March 3C, which was first launched in 2008. , the Long March 3B, 3B/E and 3B/G5 have conducted 82 successful launches, plus 2 failures and 2 partial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hughes Space And Communications
The Hughes Aircraft Company was a major American aerospace and defense contractor founded on February 14, 1934 by Howard Hughes in Glendale, California, as a division of Hughes Tool Company. The company was known for producing, among other products, the Hughes H-4 Hercules ''Spruce Goose'' aircraft, the atmospheric entry probe carried by the ''Galileo'' spacecraft, and the AIM-4 Falcon guided missile. Hughes Aircraft was founded to construct Hughes' H-1 Racer world speed record aircraft, and it later modified aircraft for his transcontinental and global circumnavigation speed record flights. The company relocated to Culver City, California, in 1940 and began manufacturing aircraft parts as a subcontractor. Hughes attempted to mold it into a major military aircraft manufacturer during World War II; however, its initial military projects ended in failure, with millions of dollars in U.S. government funds expended but only three aircraft actually built, resulting in a highly pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroacoustics
Hydroacoustics is the study and application of sound in water. Hydroacoustics, using sonar technology, is most commonly used for monitoring of underwater physical and biological characteristics. Hydroacoustics can be used to detect the depth of a water body (bathymetry), as well as the presence or absence, abundance, distribution, size, and behavior of underwater plants and animals. Hydroacoustic sensing involves " passive acoustics" (listening for sounds) or ''active acoustics'' making a sound and listening for the echo, hence the common name for the device, echo sounder or echosounder. There are a number of different causes of noise from shipping. These can be subdivided into those caused by the propeller, those caused by machinery, and those caused by the movement of the hull through the water. The relative importance of these three different categories will depend, amongst other things, on the ship type One of the main causes of hydro acoustic noise from fully submerge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palapa
Palapa is a series of Communications satellites owned by Indosat, an Indonesian telecommunications company (formerly by Perumtel and then by PT Satelit Palapa Indonesia/Satelindo). Starting with the first in July 1976, at which time Indonesia became the first developing country to operate its own domestic satellite system. The estimated cost for the project was US$1 billion. History The first satellite, Palapa-A1 of , was launched on 8 July 1976 at 23:31 UTC from Kennedy Space Center by a Delta 2914 launch vehicle, or at 06:31 Indonesian Time on 9 July 1976. Palapa-A2 was launched on 10 March 1977. The name "Palapa" was bestowed by then Indonesian President Suharto, after the Palapa oath sworn by Gajah Mada, the Prime Minister of Majapahit Kingdom, in 1334. According to the Pararaton (Book of Kings), Gajah Mada swore that he would not taste any ''palapa'' (historians suggest it refers to spice or a kind of flavouring), as long as he had not succeeded in unifying Nusa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Government Of Pakistan
The Government of Pakistan ( ur, , translit=hakúmat-e pákistán) abbreviated as GoP, is a federal government established by the Constitution of Pakistan as a constituted governing authority of the Administrative units of Pakistan, four provinces, two autonomous territories, and one federal territory of a Parliamentary democracy, parliamentary democratic Parliamentary republic, republic, constitutionally called the Pakistan, Islamic Republic of Pakistan. Effecting the Westminster system for governing the state, the government is mainly composed of the Executive branch, executive, Legislative branch, legislative, and Judicial branch, judicial branches, in which all powers are vested by the Constitution of Pakistan, Constitution in the Parliament of Pakistan, Parliament, the Prime Minister of Pakistan, Prime Minister and the Supreme Court of Pakistan, Supreme Court. The powers and duties of these branches are further defined by acts and amendments of the Parliament, including the ... [...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] |
