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Nahid-1
Nahid-1 ( fa, ناهید, meaning "Venus") was an Iranian solar-powered communications satellite. Satellite It was originally planned to launch into low Earth orbit in September 2019 on a Safir rocket, however an explosion occurred on the launch pad during launch preparation on 29 August 2019, though the satellite itself was apparently not part of the test and remained undamaged. It was ultimately launched on board a Qaem 100 on 4 March 2023 as part of the rocket's maiden flight, however the launch failed and the satellite was destroyed together with the rocket. Nahid-1 was built with the aim of gaining knowhow and experience in the development of geosynchronous communication satellites. It was the first Iranian satellite equipped with deployable solar panels. See also *Omid ''Omid'' ( fa, امید, meaning "Hope") was Iran's first domestically made satellite. Omid was a data-processing satellite for research and telecommunications; Iran's state television reported that it wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qaem 100
Qaem 100 (also Ghaem 100, fa, قائم ۱۰۰, }, from a word meaning "upright") is an Iranian expendable, small-lift, space launch vehicle in development by the Islamic Revolutionary Guard Corps (IRGC). It was unveiled on 5 November 2022 and is the first rocket of the Qaem family. According to the IRGC, Qaem 110 will be utilized to launch the Nahid telecommunication satellite. Development history In 2020, the Islamic Revolutionary Guard Corps successfully launched its first rocket, the Qased. Experience acquired through the Qased's development allowed the IRGC to develop the Qaem 100. Its first suborbital test flight has been successfully carried out on 5 November 2022. The IRGC then announced Qaem 100 will "soon" be used to launch the Nahid satellite manufactured by the Ministry of Information and Communications Technology of Iran. The Qaem 100 is planned to be followed by other Qaem rockets including the Qaem 105, Qaem 110 and Qaem 200, which will ultimately allow Iran ... [...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 communicat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Safir (rocket)
The Safir ( fa, سفیر, meaning "ambassador") was the first Iranian expendable launch vehicle able to place a satellite in orbit. The first successful orbital launch using the Safir launch system took place on 2 February 2009 when a Safir carrier rocket placed the Omid satellite into an orbit with a apogee. Making Iran the ninth nation capable of producing and launching a satellite. The Simorgh is a larger orbital launcher based on Safir technology which has since replaced the Safir, and is sometimes called the Safir-2. Design and specifications The Safir measures 1.25 meters in diameter, 22 meters in height and has a launching mass of 26 tons. The rocket consists of two stages; The first stage utilizes an upgraded Nodong/Shahab-3 type engine which burns a hypergolic combination of UDMH as fuel and nitrogen tetroxide as oxidant, producing 37 tons (363 kN; 82,500 lbf) of thrust. The second stage utilizes a pair of smaller engines (originally the Vernier engin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2023 In Iran
Events in the year 2023 in Iran. Incumbents * Supreme Leader of Iran: Ali Khamenei * President of Iran: Ebrahim Raisi * Speaker of the Parliament: Mohammad Bagher Ghalibaf * Chief Justice: Gholam-Hossein Mohseni-Eje'i Events January * 18 January – At least 150 people are injured by a magnitude 5.8 earthquake in Khoy, Khoy County, West Azerbaijan. * 19 January – Iran and South Korea summon each others' ambassadors in a deepening dispute between the countries, after South Korean President Yoon Suk-yeol called Iran "the enemy of the United Arab Emirates" while addressing South Korean troops stationed there. * 24 January – Two police officers are killed and a third is injured in an attack in Sistan and Baluchestan province. * 27 January – Attack on the Azerbaijani Embassy in Tehran: A guard is killed and two others are injured during a shooting at the Azerbaijani embassy in Tehran. The perpetrator is arrested. * 28 January – Drone attacks were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2019 In Iran
Events in the year 2019 in Iran. Incumbents * Supreme Leader of Iran: Ali Khamenei * President of Iran: Hassan Rouhani * Parliament of Iran: Ali Larijani * Judiciary System of Iran: Sadeq Larijani (until 7 March), Ebrahim Raisi (since 7 March) Events *14 January – 2019 Saha Airlines Boeing 707 crash *13 February – 2019 Khash–Zahedan suicide bombing: A suicide bomb attack on a vehicle kills at least 27 Revolutionary Guards in southeastern Iran. It is one of the deadliest terrorist attacks in Iran in years. *2 September — Sahar Khodayari (Esteghlal F.C. girl fan) also known as Blue girl ; sets herself on fire after being arrested for attending a soccer game. She dies a week later in hospital. *10 November - Oil field with an estimated 53 billion barrels of crude discovered in Kuszstan *Since 15 November - 2019–20 Iranian protests ؛ In Persian: اعتراضات آبان ۱۳۹۸ Sports *2018–19 Persian Gulf Pro League Deaths *8 January – Khosro Harand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellites Of Iran
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 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 is small CubeSats. Similar satellites can work together as a group, forming constellations. Because of the high launch cost to space, satellites are designed to be as lightweight and robust as possible. Most communication satellites are radio relay stations in orbit and carry dozens of transponders, each with a bandwidth of tens of megahertz. Satellites are placed from the surface to orbit by launch vehicles, high enough to avoid orbital decay by the atmosphere. Satellites can then change or maintain the orbit by pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omid
''Omid'' ( fa, امید, meaning "Hope") was Iran's first domestically made satellite. Omid was a data-processing satellite for research and telecommunications; Iran's state television reported that it was successfully launched on 2 February 2009. After being launched by an Iranian-made carrier rocket, Safir 1, the satellite was placed into a low Earth orbit. The launch, which coincided with the 30th anniversary of the Iranian Revolution and was supervised by President Mahmoud Ahmadinejad, was also verified by NASA the following day as a success. Its Satellite Catalog Number or USSPACECOM object number is 33506. Ahmadinejad said the satellite was launched to spread "monotheism, peace and justice" in the world. The ''Tehran Times'' reported that "Iran has said it wants to put its own satellites into orbit to monitor natural disasters in the earthquake-prone nation and improve its telecommunications." Foreign minister Manouchehr Mottaki said the satellite was launched to "meet the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Panels On Spacecraft
Spacecraft operating in the inner Solar System usually rely on the use of power electronics-managed photovoltaic solar panels to derive electricity from sunlight. Outside the orbit of Jupiter, solar radiation is too weak to produce sufficient power within current solar technology and spacecraft mass limitations, so radioisotope thermoelectric generators (RTGs) are instead used as a power source.NASA JPL Publication: Basics of Space Flight, Chapter 11. Typical Onboard Systems, Electrical Power Supply and Distribution Subsystems, History The first practical silicon-based solar cells were introduced by Bell Labs in April 1954. They were initially about 6% efficient, but improvements began to raise this number almost immediately. Bell had been interested in the idea as a system to provide power at remote telephone repeater stations, but the cost of the devices was far too high to be practical in this role. Aside from small experimental kits and uses, the cells remained largely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosynchronous Satellite
A geosynchronous satellite is a satellite in geosynchronous orbit, with an orbital period the same as the Earth's rotation period. Such a satellite returns to the same position in the sky after each sidereal day, and over the course of a day traces out a path in the sky that is typically some form of analemma. A special case of geosynchronous satellite is the geostationary satellite, which has a geostationary orbit – a circular geosynchronous orbit directly above the Earth's equator. Another type of geosynchronous orbit used by satellites is the Tundra elliptical orbit. Geostationary satellites have the unique property of remaining permanently fixed in exactly the same position in the sky as viewed from any fixed location on Earth, meaning that ground-based antennas do not need to track them but can remain fixed in one direction. Such satellites are often used for communication purposes; a geosynchronous network is a communication network based on communication with or t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low Earth Orbit
A low Earth orbit (LEO) is an orbit around Earth with a period of 128 minutes or less (making at least 11.25 orbits per day) and an eccentricity less than 0.25. Most of the artificial objects in outer space are in LEO, with an altitude never more than about one-third of the radius of Earth. The term ''LEO region'' is also used for the area of space below an altitude of (about one-third of Earth's radius). Objects in orbits that pass through this zone, even if they have an apogee further out or are sub-orbital, are carefully tracked since they present a collision risk to the many LEO satellites. All crewed space stations to date have been within LEO. From 1968 to 1972, the Apollo program's lunar missions sent humans beyond LEO. Since the end of the Apollo program, no human spaceflights have been beyond LEO. Defining characteristics A wide variety of sources define LEO in terms of altitude. The altitude of an object in an elliptic orbit can vary significantly along the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sightline Media Group
Sightline Media Group, formerly Gannett Government Media and Army Times Publishing Company, is a United States company that publishes newspapers, magazines, websites, and other publications about the U.S. and other militaries. The company's ''Military Times'' group publishes four bimonthly newspapers aimed at current and former U.S. military personnel: '' Army Times'' (founded 1940), ''Navy Times'' (founded 1951), '' Air Force Times'' (founded 1947), and ''Marine Corps Times'' (founded 1999). It also publishes ''Defense News'' (founded 1986), '' C4ISRNET'' and ''Federal Times''. Its defunct publications include ''Armed Forces Journal'', founded in 1863, which was the nation's longest-running defense-themed publication until it ceased publication in 2014. History The company was founded in 1940 as the Army Times Publishing Company. In August 1997, it was purchased by the Gannett Company. As part of the spinoff of digital and broadcasting properties in 2015, Gannett spun o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iranian Space Agency
The Iranian Space Agency (ISA, Persian: ''Sāzmān-e Fazāi-ye Irān'') is Iran's governmental space agency. Iran became an orbital-launch-capable nation in 2009. Iran is one of the 24 founding members of the United Nations Committee on the Peaceful Uses of Outer Space (COPUOS), which was set up on 13 December 1958. History ISA was established on 28 February 2004, according to the Article 9 of the Law for Tasks and Authorizations of the Ministry of Communications and Information Technology passed on 10 December 2003 by the Parliament of Iran. Based on the approved statute ISA mandated to cover and support all the activities in Iran concerning the peaceful applications of space science and technology under the leadership of a Supreme Council of Space chaired by the President of Iran. The council's main goals included policy making for the application of space technologies aiming peaceful uses of outer space, manufacturing, launching and use of the national research sat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
