|
Badr-6
The Arab Satellite Communications Organization (often abbreviated as Arabsat) is a communications satellite operator in the Arab World, headquartered in the city of Riyadh, Saudi Arabia. Arabsat was created to deliver satellite-based, public and private telecommunications services to the Arab States, in accordance with International Standards. With 21 member countries, the organization plays a vital role of enhancing communications in the Arab World. The Arabsat satellites are a series of geostationary communications satellites launched from 1985 through 2019. Some of the later satellites in the series remain operational in orbit, while others have been retired and are derelict. History The foundation of Arab Satellite Communications Organization (Arabsat) dates from the late 1960s. In 1967, information ministers of Arab states developed a series of principles in relation to a satellite network, to create an integration of social and cultural activities among the Arab League ... [...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 (satellite communications), transponder; it creates a communication channel between a source transmitter and a Radio receiver, 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 radio waves used for telecommunications links travel by Line-of-sight propagation, line of sight and so are obstructe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sudan
Sudan, officially the Republic of the Sudan, is a country in Northeast Africa. It borders the Central African Republic to the southwest, Chad to the west, Libya to the northwest, Egypt to the north, the Red Sea to the east, Eritrea and Ethiopia to the southeast, and South Sudan to the south. Sudan has a population of 50 million people as of 2024 and occupies 1,886,068 square kilometres (728,215 square miles), making it Africa's List of African countries by area, third-largest country by area and the third-largest by area in the Arab League. It was the largest country by area in Africa and the Arab League until the 2011 South Sudanese independence referendum, secession of South Sudan in 2011; since then both titles have been held by Algeria. Sudan's capital and most populous city is Khartoum. The area that is now Sudan witnessed the Khormusan ( 40000–16000 BC), Halfan culture ( 20500–17000 BC), Sebilian ( 13000–10000 BC), Qadan culture ( 15000–5000 BC), the war of Jebel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arabsat-1A
Arabsat-1A () was a Saudi Arabian communications satellite which was operated by Arab Satellite Communications Organization. It was used to provide communication services to the Arab States. It was constructed by Aérospatiale, based on the Spacebus 100 satellite bus, and carries two NATO E/F-band (IEEE S band) and 25 NATO G/H-Band (IEEE C band) transponders. At launch, it had a mass of , and an expected operational lifespan of seven years. Arabsat-1A was launched by Arianespace using an Ariane 3 rocket flying from ELA-1 at Kourou. The launch took place at 23:22:00 UTC on 8 February 1985. It was the first Spacebus satellite to be launched. Immediately after launch, one of its solar panels failed to deploy, resulting in reduced performance. It was placed into a geosynchronous orbit at a longitude of 19.0° East. Following a series of gyroscope malfunctions, it was retired from active service, and remained operational as a backup. In September 1991, another problem developed with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arab States Broadcasting Union
The Arab States Broadcasting Union (ASBU; ) is an Arab joint-action institution related to the League of Arab States and the Pan-Arab Association of Public Service and Commercial Broadcasters. Founded in February 1969 in Khartoum, ASBU is a professional organization with the objective of strengthening ties and promoting cooperation among broadcasters in the Arab States for better production and content development. ASBU provides important services such as engineering and consulting services, radio and television exchange of news, programming and sports, as well as radio and TV training. It also strives to acquire broadcasting rights at preferential rates for a number of competitions and sports events to the benefit of its members, as well as to ensure the appropriate broadcasting coverage of such events. Its headquarters are in the Tunisian city of Tunis. Members Active Members Former Members Participating Members * Al-Manar - Al-Nour (Hezbollah via Lebanese Communicat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arab League
The Arab League (, ' ), officially the League of Arab States (, '), is a regional organization in the Arab world. The Arab League was formed in Cairo on 22 March 1945, initially with seven members: Kingdom of Egypt, Egypt, Kingdom of Iraq, Iraq, Emirate of Transjordan, Transjordan, Lebanon, Saudi Arabia, First Syrian Republic, Syria, and Kingdom of Yemen, North Yemen. Currently, the League has member states of the Arab League, 22 members. The League's main goal is to "draw closer the relations between member states and co-ordinate collaboration between them, to safeguard their independence and sovereignty, and to consider in a general way the affairs and interests of the Arab countries". The organization has received a relatively low level of cooperation throughout its history. Through institutions, notably the Arab League Educational, Cultural and Scientific Organization (ALECSO) and the Economic and Social Council of its Council of Arab Economic Unity (CAEU), the League f ... [...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 orbit, circular geosynchronous orbit in altitude above Earth's equator, in radius from Earth's center, and following the retrograde and prograde motion, direction of Earth's rotation. An object in such an orbit has an orbital period equal to Earth's rotational period, one sidereal time, 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 dish, satellite antennas do not have to rotate to track t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellite
A satellite or an artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication relay, weather forecasting, navigation ( GPS), broadcasting, scientific research, and Earth observation. Additional military uses are reconnaissance, early warning, signals intelligence and, potentially, weapon delivery. Other satellites include the final rocket stages that place satellites in orbit and formerly useful satellites that later become defunct. Except for passive satellites, most satellites have an electricity generation system for equipment on board, such as solar panels or radioisotope thermoelectric generators (RTGs). Most satellites also have a method of communication to ground stations, called transponders. Many satellites use a standardized bus to save cost and work, the most popular of which are small CubeSats. Similar satellites can work together as groups, forming constellatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arab World
The Arab world ( '), formally the Arab homeland ( '), also known as the Arab nation ( '), the Arabsphere, or the Arab states, comprises a large group of countries, mainly located in West Asia and North Africa. While the majority of people in the Arab world are ethnically Arabs, Arab, there are also significant populations of other ethnic groups such as Berbers, Kurds, Somalis and Nubians, among other Demographics of the Arab world, groups. Arabic is used as the lingua franca throughout the Arab world. The Arab world is at its minimum defined as the 19 states where Arabs form at least a wiktionary:plurality, plurality of the population. At its maximum it consists of the 22 member states of the Arab League, members of the Arab League, an international organization, which on top of the 19 plurality Arab states also includes the Bantu peoples, Bantu-speaking Comoros, and the Cushitic-speaking peoples, Cushitic-speaking Djibouti and Somalia. The region stretches from the Atlantic 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 (satellite communications), transponder; it creates a communication channel between a source transmitter and a Radio receiver, 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 radio waves used for telecommunications links travel by Line-of-sight propagation, line of sight and so are obstructe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riyadh
Riyadh is the capital and largest city of Saudi Arabia. It is also the capital of the Riyadh Province and the centre of the Riyadh Governorate. Located on the eastern bank of Wadi Hanifa, the current form of the metropolis largely emerged in the 1950s as an offshoot of the 18th century Walled town of Riyadh, walled town following the dismantling of its Riyadh city fortifications, defensive fortifications. It is the List of Arabian cities by population, largest city on the Arabian Peninsula, and is situated in the center of the An Nafud, an-Nafud desert, on the eastern part of the Najd plateau. The city sits at an average of above sea level, and receives around 5 million Tourism in Saudi Arabia, tourists each year, making it the List of cities by international visitors, forty-ninth most visited city in the world and the 6th in the Middle East. Riyadh had a population of 7.0 million people in 2022, making it the List of cities in Saudi Arabia, most-populous city in Saudi Arabia, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Djibouti
Djibouti, officially the Republic of Djibouti, is a country in the Horn of Africa, bordered by Somalia to the south, Ethiopia to the southwest, Eritrea in the north, and the Red Sea and the Gulf of Aden to the east. The country has an area of . In antiquity, the territory, together with Ethiopia, Eritrea and Somaliland, was part of the Land of Punt. Nearby Zeila, now in Somaliland, was the seat of the medieval Adal Sultanate, Adal and Ifat Sultanate, Ifat Sultanates. In the late 19th century, the colony of French Somaliland was established after the ruling Dir (clan), Dir, Somali people, Somali, and Afar people, Afar sultans signed treaties with the French, and its Imperial Ethiopian Railway, railroad to Dire Dawa (and later Addis Ababa) allowed it to quickly supersede Zeila as the port for southern Ethiopia and the Ogaden. It was renamed the French Territory of the Afars and the Issas in 1967. A decade later, the Djiboutian people 1977 Afars and Issas independence referendu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
