| 词条 | USA-232 |
| 释义 |
| name = USA-213 | image = Navstar-2F.jpg | image_caption = A Block IIF GPS satellite | insignia = | mission_type = Navigation | operator = US Air Force | COSPAR_ID = 2011-036A[1] | SATCAT = 37753[1] | mission_duration = 12 years (planned) | spacecraft = GPS SVN-63 (IIF-2) | spacecraft_type = GPS Block IIF | manufacturer = Boeing | launch_mass = {{convert|1630|kg}}[3] | dimensions = | power = | launch_date = {{start-date|16 July 2011, 06:41|timezone=yes}} UTC | launch_rocket = {{nowrap|Delta IV-M+(4,2),}} D355[4] | launch_site = Cape Canaveral SLC-37B[4] | launch_contractor = ULA | entered_service = | disposal_type = | deactivated = | orbit_epoch = | orbit_reference = Geocentric | orbit_regime = Medium Earth (Semi-synchronous) | orbit_apoapsis = {{convert|20463|km|sp=us}}[6] | orbit_periapsis = {{convert|20452|km|sp=us}}[6] | orbit_inclination = 55 degrees[6] | orbit_period = 729.16 minutes[6] | apsis = gee }}USA-232, also known as GPS IIF-2, and GPS SVN-63, is an American navigation satellite which forms part of the Global Positioning System. It was the second of twelve Block IIF satellites to be launched.[3] Built by Boeing and launched by United Launch Alliance, USA-232 was launched at 06:41 UTC on 16 July 2011, atop a Delta IV carrier rocket, flight number D355, flying in the Medium+(4,2) configuration.[2] The launch took place from Space Launch Complex 37B at the Cape Canaveral Air Force Station,[3] and placed USA-232 directly into medium Earth orbit.[6] As of 24 July 2011, USA-232 was in an orbit with a perigee of {{convert|20452|km|sp=us}}, an apogee of {{convert|20463|km|sp=us}}, a period of 729.16 minutes, and 55.0 degrees of inclination to the equator.[4] It is used to broadcast the PRN 01 signal, and operates in slot 2 of plane D of the GPS constellation. The satellite has a design life of 15 years and a mass of {{convert|1630|kg}}. [5] As of 2012 it remains in service. References1. ^1 {{cite web|url=http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=2011-036A|title=Navstar 66|publisher=US National Space Science Data Center|accessdate=3 July 2012}} {{Portal|Spaceflight}}{{GPS satellites}}{{Orbital launches in 2011}}{{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=12 July 2012}} 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=12 July 2012}} 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=12 July 2012}} 5. ^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=12 July 2012}} 4 : Spacecraft launched in 2011|GPS satellites|USA satellites|Spacecraft launched by Delta IV rockets |
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