iridium satellite constellation wikipedia - EAS
- wikipedia.orgIridium satellite constellationis a network of 66 active satellites in low Earth orbit, that provide L band voice and data information coverage to satellite phones, pagers and integrated transceivers over the entire Earth surface, since 1998. The network is owned by Iridium Communications. Development
Iridium satellite constellation
The Iridium satellite constellation is a satellite constellation providing voice and data coverage to satellite phones, pagers and integrated transceivers over the Earth's entire surface. Iridium Communications owns and operates the constellation and sells equipment and access to …
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Xem tất cả trên Wikipediahttps://en.wikipedia.org/wiki/Iridium_satellite_constellationThe Iridium satellite constellation provides L band voice and data information coverage to satellite phones, pagers and integrated transceivers over the entire surface of Earth. Iridium Communications owns and operates the constellation, additionally selling equipment and access to its
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Xem thêmThe Iridium system was designed to be accessed by small handheld phones, the size of a cell phone. While "the weight of a typical cell phone in the early 1990s was 10.5 ounces" Advertising Age wrote in mid 1999 that "when its phone
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Xem thêmThe satellites each contained seven Motorola/Freescale PowerPC 603E processors running at roughly 200 MHz, connected by a custom backplane network. One processor
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Xem thêmOver the years a number of Iridium satellites have ceased to work and are no longer in active service, some are partially functional and have remained in orbit whereas others have
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Xem thêmThe Iridium satellite constellation was conceived in the early 1990s as a way to reach high Earth latitudes with reliable satellite communication services. Early calculations showed that
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Xem thêmIn 2017, Iridium began launching Iridium NEXT, a second-generation worldwide network of telecommunications satellites, consisting of 66 active satellites, with another nine in-orbit spares and six on-ground spares. These satellites incorporate features such
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Xem thêmVăn bản Wikipedia theo giấy phép CC-BY-SAMục này có hữu ích không?Cảm ơn! Cung cấp thêm phản hồi- https://en.wikipedia.org/wiki/Talk:Iridium_satellite_constellation
- I think the satellite design section should be a separate article. 76.66.196.229 (talk) 12:57, 18 February 2009 (UTC) 1. Don't see how the design of the satellites are notable in and of themselves and how the design is not influenced by the constellation. Vegaswikian (talk) 17:56, 18 February 2009 (UTC) 1. Removed discussion tags (Courageousrobot (talk) 02:40, 21 April 20…
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- https://fr.wikipedia.org/wiki/Iridium_(téléphonie_par_satellite)
Iridium est un système de téléphonie par satellite reposant sur une constellation de satellites circulant sur une orbite terrestre basse.
Des ingénieurs de la société américaine Motorolacréent Iridium en 1991 et lèvent des fonds permettant la réalisation du réseau terrestre ainsi que du segment spatial qui comprend environ 90 satellites (dont 66 actifs ). Mais Iridi…Wikipedia · Nội dung trong CC-BY-SA giấy phép - https://en.wikipedia.org/wiki/Iridium_Communications
- Iridium Communications Inc. is a publicly traded American company headquartered in McLean, Virginia. Iridium operates the Iridium satellite constellation, a system of 66 active satellites used for worldwide voice and data communication from hand-held satellite phones and other transceiver units.
- Được thành lập: 2001
- Number of employees: 497+ (2019)
- https://it.wikipedia.org/wiki/Iridium_(satellite)Xem thêm trên it.wikipedia.orgIl sistema Iridium è l'unico servizio di telecomunicazione satellitare globale: è possibile utilizzare infatti i servizi Iridium in tutto il pianeta comprese le aree polari. Recentemente è stato inglobato nel Tsunami Warning System in quanto il sistema Iridium continua a fornire il servizio anche in caso di terremoti, uragani, in…
- Forma societaria: Public company
- Stato: Stati Uniti
- https://en.wikipedia.org/wiki/Satellite_constellation
A satellite constellation is a group of artificial satellites working together as a system. Unlike a single satellite, a constellation can provide permanent global or near-global coverage, such that at any time everywhere on Earth at least one satellite is visible. Satellites are typically placed in sets of complementary orbital planes and connect to globally distributed ground stations. They …
- https://en.wikipedia.org/wiki/Starlink
Starlink is a satellite internet constellation operated by SpaceX providing satellite Internet access coverage to 29 countries on Earth with ambition to extend coverage to the whole world. 2,335 Starlinks have been launched, with 2,110 still in orbit. Of those, 1,608 are in the licensed operational shells and 447 are undergoing orbit raising towards those shells as of March 2022. …
- https://wikimili.com/en/Iridium_satellite_constellation
Iridium operates the Iridium satellite constellation, a system of 66 active satellites used for worldwide voice and data communication from hand-held satellite phones and other transceiver units. A satellite constellation is a group of artificial satellites working together as a system.
- https://en.wikipedia.org/wiki/OneWeb_satellite_constellation
The OneWeb satellite constellation is a planned initial 648-satellite constellation which is in the process of being completed in 2022, with a goal to provide global satellite Internet broadband services to people everywhere, starting in 2021. The constellation is being deployed by OneWeb, headquartered in London, with offices in California, Florida, Virginia, Dubai and Singapore. …
- https://en.wikipedia.org/wiki/Iridium
Iridium is a chemical element with the symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, it is considered the second-densest naturally occurring metal (after osmium) with a density of 22.56 g/cm 3 (0.815 lb/cu in) as defined by experimental X-ray crystallography. It is the most corrosion-resistant metal, even at …
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