| 词条 | USA-266 |
| 释义 |
| name = USA-266 | image = Navstar-2F.jpg | image_caption = A Block IIF GPS satellite | insignia = | mission_type = Navigation | operator = US Air Force | COSPAR_ID = 2016-007A[1] | SATCAT = 41328[1] | mission_duration = 12 years (planned) | spacecraft = GPS SVN-70 (IIF-12) | spacecraft_type = GPS Block IIF | manufacturer = Boeing | launch_mass = {{convert|1630|kg}}[3] | dimensions = | power = | launch_date = {{start-date|5 February 2016, 13:38|timezone=yes}} UTC | launch_rocket = {{nowrap|Atlas V 401,}} AV-057[4] | launch_site = Cape Canaveral SLC-41[4] | launch_contractor = ULA | entered_service = | disposal_type = | deactivated = | orbit_epoch = 12 March 2016, 01:14:53 UTC | orbit_reference = Geocentric | orbit_regime = Medium Earth (Semi-synchronous) | orbit_apoapsis = {{convert|20181|km|abbr=on}}[6] | orbit_periapsis = {{convert|20196|km|abbr=on}}[6] | orbit_inclination = 55.01 degrees[6] | orbit_period = 717.9 minutes[6] | apsis = gee }}USA-266, also known as GPS IIF-12, GPS SVN-70 and NAVSTAR 76, is an American navigation satellite which forms part of the Global Positioning System. It was the twelfth of twelve Block IIF satellites to be launched.[3] LaunchBuilt by Boeing and launched by United Launch Alliance, USA-266 was launched at 13:38 UTC on 5 February 2016, atop a Atlas V 401 carrier rocket, vehicle number AV-057.[2] The launch took place from Space Launch Complex 41 at the Cape Canaveral Air Force Station,[3] and placed USA-266 directly into semi-synchronous orbit.[6] OrbitAs of 12 March 2016, USA-266 was in an orbit with a perigee of {{convert|20181|km|sp=us}}, an apogee of {{convert|20196|km|sp=us}}, a period of 717.9 minutes, and 55.01 degrees of inclination to the equator.[4] It is used to broadcast the PRN 32 signal, and operates in slot 5 of plane F of the GPS constellation.[5] The satellite has a design life of 15 years and a mass of {{convert|1630|kg}}. [6] It is currently in service following commissioning on March 9, 2016.[7]{{-}}References{{Portal|Spaceflight}}1. ^1 {{cite web|url=http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=2016-007A|title=Navstar 76|publisher=US National Space Science Data Center|accessdate=13 March 2016}} {{GPS satellites}}{{Orbital launches in 2016}}{{US-spacecraft-stub}}2. ^1 2 {{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|publisher=Jonathan's Space Page|first=Jonathan|last=McDowell|accessdate=13 March 2016}} 3. ^{{cite web|url=http://planet4589.org/space/lvdb/list2.html|title=Launch List|publisher=Jonathan's Space Page|work=Launch Vehicle Database|first=Jonathan|last=McDowell|accessdate=13 March 2016}} 4. ^1 2 3 4 5 {{cite web|url=http://planet4589.org/space/log/satcat.txt|title=Satellite Catalog|publisher=Jonathan's Space Page|first=Jonathan|last=McDowell|accessdate=13 March 2016}} 5. ^{{cite web|title=GPS Constellation Status|url=http://www.navcen.uscg.gov/?Do=constellationstatus|publisher=US Department of Homeland Security|accessdate=8 April 2016}} 6. ^1 2 {{cite web|url=http://space.skyrocket.de/doc_sdat/navstar-2f.htm|title=GPS-2F (Navstar-2F)|first=Gunter|last=Krebs|work=Gunter's Space Page|accessdate=13 March 2016}} 7. ^{{cite web|url=http://www.navcen.uscg.gov/?Do=gpsShowNanu&num=2016022|title=NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2016022|publisher=United States Coast Guard|accessdate=13 March 2016}} 4 : Spacecraft launched in 2016|GPS satellites|USA satellites|Spacecraft launched by Atlas rockets |
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