Editing Wide Area Augmentation System (section)

===Timeline===
'''Wide-Area Augmentation System (WAAS) timeline'''
<timeline>
ImageSize  = width:700 height:1000
PlotArea   = left:40 right:30 top:10 bottom:20 
DateFormat = mm/dd/yyyy
TimeAxis   = orientation:vertical order:normal format:yyyy
Period     = from:1995 till:2022
AlignBars  = early
ScaleMajor = unit:year increment:1 start:1995
ScaleMinor = unit:month increment:6 start:06/01/1995
Colors = 
  id:gray value:gray(0.7)

# there is no automatic collision detection,
# so shift texts up or down manually to avoid overlap

Define $dx = 25 # shift text to right side of bar

PlotData =
  bar:event width:20 color:blue shift:($dx,-4) 
  
  from:start till:end color:blue
  
  mark:(line, white)

  at:08/01/1995 text:"August, 1995: Wilcox Electric contracted to deliver WAAS."
  at:02/01/1996 text:"February, 1996: WAAS Architecture Version 1.5 Released."
  at:04/01/1996 shift:($dx,1.5) text:"April, 1996: Wilcox contract terminated due to inadequate technical capability by Wilcox."
  at:10/01/1996 text:"October, 1996: Hughes Aircraft contracted to deliver Phase 1 WAAS by April 1, 1999."
  at:12/18/1996 shift:($dx,0.5) text:"December, 1996: Inmarsat's POR (NMEA #47) is launched."
  at:06/03/1997 text:"June, 1997: Inmarsat's AOR-W (NMEA #35) is launched."
  at:01/01/1998 text:"January, 1998: Raytheon Systems purchases Hughes Aircraft, assuming control of WAAS contract."
  at:12/01/1999 text:"December, 1999: WAAS signal being transmitted from satellites for testing purposes."
  at:03/31/2003 text:"March 31, 2003: Capstone conducts the first commercial flight with a TSO-145 GPS/WAAS receiver."
  at:07/10/2003 text:"July 10, 2003: The FAA commissions the Wide Area Augmentation System (WAAS) for aviation use."
  at:09/01/2004 shift:($dx,-15) text:"September, 2004: Site surveys for new WAAS reference stations (WRS) in Alaska and Canada are completed."
  at:10/01/2004 text:"October, 2004: The FAA approves the Garmin 480 as the first WAAS-equipped avionics for LPV approaches."
  at:03/01/2005 text:"March, 2005: The FAA selects Lockheed Martin as new Ground Control Contractor."
  at:06/01/2005 text:"June, 2005: First international Wide-area Reference Station Installed in Gander, Newfoundland & Labrador, Canada."
  at:09/09/2005 text:"September 9, 2005: Telesat's Anik F1R (NMEA #51) is launched."
  at:10/13/2005 shift:($dx,5) text:"October 13, 2005: PanAmSat's Galaxy XV (NMEA #48) is launched."
  at:02/01/2006 shift:($dx,2) text:"February, 2006: Inmarsat's AOR-W (NMEA #35) moved from 54°W to 142°W, interrupting service for the northeastern United States."
  at:03/01/2006 shift:($dx,10) text:"March, 2006: WAAS approved to provide guidance down to 200 feet above an airport’s surface for LPV instrument approaches."
  at:11/09/2006 text:"Galaxy XV (NMEA #48) begins broadcasting certified correction messages, restoring service for the northeastern United States."
  at:09/27/2007 text:"New Wide-area Reference Stations in Mexico and Canada come online, expanding WAAS service area."
  at:06/15/2016 text:"June 15, 2016: Eutelsat 117 West B (Satmex 9; NMEA #44) is launched by SpaceX."
  at:05/18/2017 text:"May 18, 2017: Boeing SES-15 is launched by Arianespace."
  at:11/09/2017 text:"November, 2017: Inmarsat 4-F3 (AMR; NMEA #46) removed from WAAS satellite mask."
  at:08/15/2020 text:"August 15, 2020: Galaxy 30 is launched by Arianespace."
  at:04/26/2022 text:"April 26, 2022: Galaxy 30 (NMEA #48) added to WAAS satellite mask."
  at:05/17/2022 shift:($dx, 4.0) text:"May 17, 2022: Anik F1R (NMEA #51) removed from WAAS satellite mask."
</timeline><ref>* [http://www.defensedaily.com/cgi/rw/show_mag.cgi?pub=av&mon=0303&file=0303capstone.htm Capstone program testing] {{Webarchive|url=https://web.archive.org/web/20120206011224/http://www.defensedaily.com/cgi/rw/show_mag.cgi?pub=av&mon=0303&file=0303capstone.htm |date=2012-02-06 }}
* Inmarsat moves AOR-W Satellite #35 east Federal Aviation Administration. [http://gps.faa.gov/programs/waas/for_pilots.htm Information for Pilots]. Accessed 12 June 2006.
* Contract with [[Hughes Aircraft]] finalized [http://www.hq.nasa.gov/office/pao/History/presrep96/Presrp96/ch6b.htm First reference] {{Webarchive|url=https://web.archive.org/web/20150922214905/http://www.hq.nasa.gov/office/pao/History/presrep96/Presrp96/ch6b.htm |date=2015-09-22 }},  [http://www.fas.org/spp/military/gao/rced98012.htm Second reference] {{Webarchive|url=https://web.archive.org/web/20160311202204/http://fas.org/spp/military/gao/rced98012.htm |date=2016-03-11 }} 
* [http://www.hq.nasa.gov/office/pao/History/presrep96/Presrp96/ch6b.htm Version 1.5 Released] 
* General source: Federal Aviation Administration. [http://gps.faa.gov/programs/waas/currentnews-text.htm WAAS Current news]. Accessed June 12, 2006.</ref>