Ground segment: Difference between revisions

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# Conversion of raw data to [[calibration|calibrated]] (engineering) values, and calculation of derived parameters{{r|Fortescue-GS}}{{rp|483}}

# Limit and constraint checking (which may generate alert notifications)<ref name=ley/>{{rp|479}}{{r|Fortescue-GS}}{{rp|484}}

# Generation of telemetry displays, which may be take the form of tables, [[Plot (graphics)|plots]] of parameters against each other or over time, or synoptic displays (sometimes called mimics) – essentially [[flow diagram]]s that present component or subsystem interfaces and their state.{{r|Fortescue-GS}}{{rp|484}}

A spacecraft [[database]] provided by the spacecraft manufacturer is called on to provide information on telemetry frame formatting, the positions and frequencies of parameters within frames, and their associated mnemonics, calibrations, and soft and hard limits.{{r|Fortescue-GS}}{{rp|486}} The contents of this database—especially calibrations and limits—may be updated periodically to maintain consistency with onboard software and operating procedures; these can change during the life of a mission in response to [[upgrade]]s, hardware degradation in the [[space environment]], and changes to mission parameters.{{r|Fortescue-Telecom}}{{rp|399}}

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{{reflist|2|refs=

<ref name=aiaa>{{cite web|title=Operations Staffing|url=https://info.aiaa.org/tac/SMG/SOSTC/Shared%20Documents/Operations_Staffing%2C_Rev._2.doc|website=Satellite Operations Best Practice Documents|publisher=Space Operations and Support Technical Committee, [[American Institute of Aeronautics and Astronautics]]|access-date=28 December 2015|archive-date=6 October 2016|archive-url=https://web.archive.org/web/20161006104457/https://info.aiaa.org/tac/SMG/SOSTC/Shared|url-status=dead}}</ref>

<ref name=elbert>{{cite book|last1=Elbert|first1=Bruce|title=The Satellite Communication Ground Segment and Earth Station Handbook|date=2014|publisher=Artech House|isbn=978-1-60807-673-4|edition=2nd|url=https://books.google.com/books?id=eepZBAAAQBAJ&pg=PA141|page=141}}</ref>

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<ref name=ley>{{cite book|editor1-last=Ley|editor1-first=Wilfried|editor2-last=Wittmann|editor2-first=Klaus|editor3-last=Hallmann|editor3-first=Willi|title=Handbook of Space Technology|date=2008|publisher=[[John Wiley & Sons|Wiley]]|isbn=978-0470742419|url=https://books.google.com/books?isbn=0470742410|access-date=30 December 2015}}</ref>

<ref name=matthews>{{cite journal|last1=Matthews|first1=Anthony J.|title=A ground cost model (G-COST) for military systems |journal=AIAA International Communications Satellite Systems Conference|date=February 25, 1996|pages=1416–1421|doi=10.2514/6.1996-1111|publisher=[[American Institute of Aeronautics and Astronautics]]}}</ref>

<ref name=reiniger>{{cite web|last1=Reiniger|first1=Klaus|last2=Diedrich|first2=Erhard|last3=Mikusch|first3=Eberhard|title=Aspects of Ground Segment Design for Earth observation missions|url=https://www.ffg.at/getdownload.php?id=230|publisher=Alpbach Summer School|format=PDF|date=August 2006|access-date=2015-11-06|archive-date=2020-07-09|archive-url=https://web.archive.org/web/20200709111558/https://www.ffg.at/getdownload.php%3Fid%3D230|url-status=dead}}</ref>

<ref name=tirro>{{cite book|editor1-last=Tirró|editor1-first=Sebastiano|title=Satellite Communication Systems Design|date=1993|publisher=[[Springer Science+Business Media]]|isbn=1461530067|url=https://books.google.com/books?isbn=1461530067|access-date=8 January 2016}}</ref>

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<ref name=deWeck>{{cite book|last1=de Weck|first1=Olivier|last2=de Neufville|first2=Richard|last3=Chang|first3=Darren|last4=Chaize|first4=Mathieu|title=Communications Satellite Constellations|publisher=[[Massachusetts Institute of Technology]]|url=http://ardent.mit.edu/real_options/de%20Weck%20System%20Study/unit1_summary.pdf|chapter=Technical Success and Economic Failure|access-date=2016-01-12|archive-url=https://web.archive.org/web/20050509094747/http://ardent.mit.edu/real_options/de%20Weck%20System%20Study/unit1_summary.pdf|archive-date=2005-05-09|url-status=dead}}</ref>

<ref name=wood>{{cite conference | url = http://personal.ee.surrey.ac.uk/Personal/L.Wood/publications/lloyd-wood-isu-summer-06-constellations-talk.pdf | title = Introduction to satellite constellations: Orbital types, uses and related facts | first = Lloyd | last = Wood | date = July 2006 | conference = [[International Space University|ISU]] Summer Session | access-date = 17 November 2015 | archive-date = 21 February 2019 | archive-url = https://web.archive.org/web/20190221003914/http://personal.ee.surrey.ac.uk/Personal/L.Wood/publications/lloyd-wood-isu-summer-06-constellations-talk.pdf | url-status = dead }}</ref>

}}</ref>

<!--<ref name=zandbergenGS>{{cite|last1=Zandbergen|first1=B.T.C.|title=Cost Estimation for Space System Elements, v.1.02|section=Ground segm. & ops. cost |url=http://lr.tudelft.nl/fileadmin/Faculteit/LR/Organisatie/Afdelingen_en_Leerstoelen/Afdeling_SpE/Space_Systems_Eng./Space_Links/doc/Space_mission_cost_v1.02.xls|access-date=8 January 2016|format=Excel spreadsheet}}</ref>-->