# Orbit spectrum > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Orbit_spectrum > Markdown URL: https://mediated.wiki/source/Orbit_spectrum.md > Source: https://en.wikipedia.org/wiki/Orbit_spectrum > Source revision: 1275796890 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) {{Multiple issues| {{Globalize |date=April 2017}} {{one source|date=February 2020}} {{context|date=October 2019}} {{cleanup rewrite|date=November 2019}} }} {{Spaceflight sidebar}} [[File:NASA Earth-observing Fleet June 2012.ogv|thumb|300px|[NASA](/source/NASA)'s Earth-observing fleet as of June 2012.]] [[File:ERS 2.jpg|thumb|right|240px|A full-size model of the [Earth observation satellite](/source/Earth_observation_satellite) [ERS 2](/source/ERS_2)]] '''Orbit spectrum''', also known as '''satellite spectrum''', is a segment of a [radio spectrum](/source/radio_spectrum) that becomes available when [satellite](/source/satellite)s are placed into [orbit](/source/orbit).{{Cite web |title=what is satellite spectrum |url=https://vajiramandravi.com/upsc-daily-current-affairs/prelims-pointers/what-is-satellite-spectrum/ |website=Vajiram and Ravi}} This spectrum is a limited resource for every country. To ensure optimum utilization of the orbit spectrum, the national administrations of countries worldwide undertake regular monitoring exercises. This orbit spectrum is used by service providers to implement [satellite broadcasting](/source/satellite_broadcasting), [communication satellite](/source/communication_satellite), and [weather satellite](/source/weather_satellite) services. To ensure the quality of services, this orbit spectrum must be used by service providers according to the terms and conditions approved by the respective government. Regulatory measures must be enforced. This practice of regulating the spectrum within the limits of permissions or [license](/source/license)s is part of spectrum management. ==Missions== Orbit spectrum requires management which in turn needs effective spectrum monitoring exercises to enforce regulatory measures for ensuring the legal usage of spectrum resources. Many examples of such spectrum monitoring exercises were undertaken by different [countries](/source/countries) around the world. == Regulation and Allocation == The [International Telecommunication Union](/source/International_Telecommunication_Union) (ITU) plays a crucial role in regulating and allocating frequencies in the radio-frequency spectrum, including those used by satellites. Different frequency bands are designated for various satellite communication services. == Frequency Bands == Satellite communication operates in various frequency bands, including C-band, Ku-band, Ka-band, and others. The choice of frequency bands depends on factors such as the type of service, satellite orbit, and atmospheric conditions. ==References== {{Reflist}} == External links == * {{cite web|title=Annual Report 2016-17 |url=http://www.dot.gov.in/reportsstatistics/annual-report-2016-17|date=February 28, 2017|accessdate=May 31, 2017}} * "[https://www.itu.int/en/plenipotentiary/2014/newsroom/Documents/backgrounders/pp14-backgrounder-sharing-the-sky.pdf ITU's Role in managing satellite spectrum]" Category:Satellite television Category:Radio spectrum {{radio-comm-stub}} {{space-stub}} --- Adapted from the Wikipedia article [Orbit spectrum](https://en.wikipedia.org/wiki/Orbit_spectrum) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Orbit_spectrum?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.