GPS Block IIF: Difference between revisions
Removed unnecessary spaces and parameters, and updated |
m →Launch history: Avoid unnecessary capitalization per MOS:CAPS. |
||
Line 56: | Line 56: | ||
== Launch history == |
== Launch history == |
||
Overall, 12 GPS Block IIF satellites were launched, all of which are currently operational |
Overall, 12 GPS Block IIF satellites were launched, all of which are currently operational: |
||
{| class="wikitable" style="margin: 1em auto 1em auto; font-size:90%; width:90%;" |
{| class="wikitable" style="margin: 1em auto 1em auto; font-size:90%; width:90%;" |
||
|+GPS Block IIF satellites |
|+ GPS Block IIF satellites |
||
|- |
|||
⚫ | |||
! style="width:8%; text-align:center; background:#BBB" | '''Satellite''' |
|||
! style="width:7%; text-align:center; background:#BBB" | '''USA designation''' |
|||
! style="width:15%; text-align:center; background:#BBB" | '''Launch date<br>([[Coordinated Universal Time|UTC]])''' |
|||
! style="width:15%; text-align:center; background:#BBB" | '''Rocket''' |
|||
! style="width:15%; text-align:center; background:#BBB" | '''Launch site''' |
|||
! style="width:10%; text-align:center; background:#BBB" | '''Status''' |
|||
! style="width:25%; text-align:center; background:#BBB" | '''Notes''' |
|||
⚫ | |||
|- |
|- |
||
| style="text-align:center;" nowrap | [[USA-213|GPS IIF-1]] |
| style="text-align:center;" nowrap | [[USA-213|GPS IIF-1]] |
||
Line 73: | Line 75: | ||
| style="text-align:left;" | [[Delta IV|Delta IV-M+(4,2)]], s/n D349 |
| style="text-align:left;" | [[Delta IV|Delta IV-M+(4,2)]], s/n D349 |
||
| style="text-align:left;" | [[Cape Canaveral Space Force Station|Cape Canaveral]], [[Cape Canaveral Space Launch Complex 37|SLC-37B]] |
| style="text-align:left;" | [[Cape Canaveral Space Force Station|Cape Canaveral]], [[Cape Canaveral Space Launch Complex 37|SLC-37B]] |
||
| {{yes|In |
| {{yes|In service}} |
||
| style="text-align:left;" | |
| style="text-align:left;" | |
||
| style="text-align:left;" | <ref name="SV1MOB">{{cite web|title=Mission Overview|url=http://www.ulalaunch.com/uploads/docs/Mission_Booklets/DIV/div_gpsiifsv1_mob.pdf|work=Delta IV Launches GPS IIF SV-1 |publisher=United Launch Alliance|date=28 May 2010|access-date=29 October 2015}}</ref><ref>{{cite web|url=http://www.space.com/missionlaunches/air-force-new-gps-satellite-launch-100527.html|title=Air Force Launches Advanced New GPS Satellite|author=Tariq Malik|publisher=SPACE.com|date=28 May 2010}}</ref><ref name="ULASV1">{{cite web|title=ULA Marks Delta 50th Anniversary with Successful Delta IV GPS IIF SV-1 Launch|url=http://www.ulalaunch.com/ula-marks-delta-50th-anniversary-with.aspx?archived=True&Category=2|publisher=United Launch Alliance|date=28 May 2010|access-date=29 October 2015}}</ref> |
| style="text-align:left;" | <ref name="SV1MOB">{{cite web|title=Mission Overview|url=http://www.ulalaunch.com/uploads/docs/Mission_Booklets/DIV/div_gpsiifsv1_mob.pdf|work=Delta IV Launches GPS IIF SV-1 |publisher=United Launch Alliance|date=28 May 2010|access-date=29 October 2015}}</ref><ref>{{cite web|url=http://www.space.com/missionlaunches/air-force-new-gps-satellite-launch-100527.html|title=Air Force Launches Advanced New GPS Satellite|author=Tariq Malik|publisher=SPACE.com|date=28 May 2010}}</ref><ref name="ULASV1">{{cite web|title=ULA Marks Delta 50th Anniversary with Successful Delta IV GPS IIF SV-1 Launch|url=http://www.ulalaunch.com/ula-marks-delta-50th-anniversary-with.aspx?archived=True&Category=2|publisher=United Launch Alliance|date=28 May 2010|access-date=29 October 2015}}</ref> |
||
Line 82: | Line 84: | ||
| style="text-align:left;" | Delta IV-M+(4,2), s/n D355 |
| style="text-align:left;" | Delta IV-M+(4,2), s/n D355 |
||
| style="text-align:left;" | Cape Canaveral, SLC-37B |
| style="text-align:left;" | Cape Canaveral, SLC-37B |
||
| {{yes|In |
| {{yes|In service}} |
||
| style="text-align:left;" | |
| style="text-align:left;" | |
||
| style="text-align:left;" | <ref name="GPS IIF-2">{{cite web|title=United Launch Alliance Marks the 50th Successful GPS Launch for the Air Force with the Delivery of the GPS IIF-2 Mission to Orbit |url=http://www.ulalaunch.com/united-launch-alliance-marks-the-50th.aspx?&archived=True&Category=2|publisher=United Launch Alliance|date=16 July 2011|access-date=29 October 2015}}</ref> |
| style="text-align:left;" | <ref name="GPS IIF-2">{{cite web|title=United Launch Alliance Marks the 50th Successful GPS Launch for the Air Force with the Delivery of the GPS IIF-2 Mission to Orbit |url=http://www.ulalaunch.com/united-launch-alliance-marks-the-50th.aspx?&archived=True&Category=2|publisher=United Launch Alliance|date=16 July 2011|access-date=29 October 2015}}</ref> |
||
Line 91: | Line 93: | ||
| style="text-align:left;" | Delta IV-M+(4,2), s/n D361 |
| style="text-align:left;" | Delta IV-M+(4,2), s/n D361 |
||
| style="text-align:left;" | Cape Canaveral, SLC-37B |
| style="text-align:left;" | Cape Canaveral, SLC-37B |
||
| {{yes|In |
| {{yes|In service}} |
||
| style="text-align:left;" | This launch came shortly before the 10th anniversary of the inaugural Delta IV launch. |
| style="text-align:left;" | This launch came shortly before the 10th anniversary of the inaugural Delta IV launch. |
||
| style="text-align:left;" | <ref name="GPS IIF-3">{{cite web|title=United Launch Alliance GPS IIF-3|url=http://www.ulalaunch.com/site/pages/News.shtml#/121/|publisher=United Launch Alliance|access-date=8 October 2012|url-status=dead|archive-url=https://web.archive.org/web/20121001031817/http://www.ulalaunch.com/site/pages/News.shtml|archive-date=October 1, 2012}}</ref> |
| style="text-align:left;" | <ref name="GPS IIF-3">{{cite web|title=United Launch Alliance GPS IIF-3|url=http://www.ulalaunch.com/site/pages/News.shtml#/121/|publisher=United Launch Alliance|access-date=8 October 2012|url-status=dead|archive-url=https://web.archive.org/web/20121001031817/http://www.ulalaunch.com/site/pages/News.shtml|archive-date=October 1, 2012}}</ref> |
||
Line 100: | Line 102: | ||
| style="text-align:left;" | [[Atlas V]] 401, s/n AV-039 |
| style="text-align:left;" | [[Atlas V]] 401, s/n AV-039 |
||
| style="text-align:left;" | [[Cape Canaveral Space Force Station|Cape Canaveral]], [[Cape Canaveral Space Launch Complex 41|SLC-41]] |
| style="text-align:left;" | [[Cape Canaveral Space Force Station|Cape Canaveral]], [[Cape Canaveral Space Launch Complex 41|SLC-41]] |
||
| {{yes|In |
| {{yes|In service}} |
||
| style="text-align:left;" | |
| style="text-align:left;" | |
||
| style="text-align:left;" | <ref>{{cite web|title=ULA Atlas V sets sail with new GPS satellite|url=http://www.nasaspaceflight.com/2013/05/ula-atlas-v-launch-new-gps-satellite/|publisher=NASASpaceFlight.com |date=15 May 2013|access-date=15 May 2013}}</ref><ref>{{cite web|title=Orbit Data and Resources on Active GNSS Satellites|url=http://gpsworld.com/the-almanac/|publisher=GPS World|access-date=6 March 2014}}</ref> |
| style="text-align:left;" | <ref>{{cite web|title=ULA Atlas V sets sail with new GPS satellite|url=http://www.nasaspaceflight.com/2013/05/ula-atlas-v-launch-new-gps-satellite/|publisher=NASASpaceFlight.com |date=15 May 2013|access-date=15 May 2013}}</ref><ref>{{cite web|title=Orbit Data and Resources on Active GNSS Satellites|url=http://gpsworld.com/the-almanac/|publisher=GPS World|access-date=6 March 2014}}</ref> |
||
Line 109: | Line 111: | ||
| style="text-align:left;" | Delta IV-M+(4,2), s/n D365 |
| style="text-align:left;" | Delta IV-M+(4,2), s/n D365 |
||
| style="text-align:left;" | Cape Canaveral, SLC-37B |
| style="text-align:left;" | Cape Canaveral, SLC-37B |
||
| {{yes|In |
| {{yes|In service}} |
||
| style="text-align:left;" | |
| style="text-align:left;" | |
||
| style="text-align:left;" | <ref>{{cite web|title=United Launch Alliance Successfully Launches 25th Delta IV Mission Carrying Global Positioning System Satellite for the U.S. Air Force |url=http://www.ulalaunch.com/site/pages/News.shtml#/167|publisher=United Launch Alliance|access-date=6 March 2014|url-status=dead|archive-url=https://web.archive.org/web/20140209085410/http://www.ulalaunch.com/site/pages/News.shtml|archive-date=February 9, 2014 }}</ref> |
| style="text-align:left;" | <ref>{{cite web|title=United Launch Alliance Successfully Launches 25th Delta IV Mission Carrying Global Positioning System Satellite for the U.S. Air Force |url=http://www.ulalaunch.com/site/pages/News.shtml#/167|publisher=United Launch Alliance|access-date=6 March 2014|url-status=dead|archive-url=https://web.archive.org/web/20140209085410/http://www.ulalaunch.com/site/pages/News.shtml|archive-date=February 9, 2014 }}</ref> |
||
Line 118: | Line 120: | ||
| style="text-align:left;" | Delta IV-M+(4,2), s/n D366 |
| style="text-align:left;" | Delta IV-M+(4,2), s/n D366 |
||
| style="text-align:left;" | Cape Canaveral, SLC-37B |
| style="text-align:left;" | Cape Canaveral, SLC-37B |
||
| {{yes|In |
| {{yes|In service}} |
||
| style="text-align:left;" | |
| style="text-align:left;" | |
||
| style="text-align:left;" | <ref>{{cite web|title=Sixth GPS IIF Spacecraft Launches|url=http://www.insidegnss.com/node/4008|publisher=Inside GNSS|date=17 May 2014}}</ref> |
| style="text-align:left;" | <ref>{{cite web|title=Sixth GPS IIF Spacecraft Launches|url=http://www.insidegnss.com/node/4008|publisher=Inside GNSS|date=17 May 2014}}</ref> |
||
Line 127: | Line 129: | ||
| style="text-align:left;" | Atlas V 401, s/n AV-048 |
| style="text-align:left;" | Atlas V 401, s/n AV-048 |
||
| style="text-align:left;" | Cape Canaveral, SLC-41 |
| style="text-align:left;" | Cape Canaveral, SLC-41 |
||
| {{yes|In |
| {{yes|In service}} |
||
| style="text-align:left;" | |
| style="text-align:left;" | |
||
| style="text-align:left;" | <ref name="boeingsched">{{cite web|url=http://www.boeing.com/boeing/defense-space/space/bss/launch/launch_sched.page|title=Boeing Satellite Launch Schedule|publisher=Boeing |access-date=17 May 2014|url-status=dead|archive-url=https://web.archive.org/web/20140611071855/http://www.boeing.com/boeing/defense-space/space/bss/launch/launch_sched.page|archive-date=June 11, 2014}}</ref><ref>{{cite web|title=Atlas V to Launch GPS IIF-7|url=http://www.ulalaunch.com/atlas-v-to-launch-gps-iif7.aspx?title=Atlas+V+to+Launch+GPS+IIF-7|publisher=United Launch Alliance|access-date=2 August 2014}}</ref> |
| style="text-align:left;" | <ref name="boeingsched">{{cite web|url=http://www.boeing.com/boeing/defense-space/space/bss/launch/launch_sched.page|title=Boeing Satellite Launch Schedule|publisher=Boeing |access-date=17 May 2014|url-status=dead|archive-url=https://web.archive.org/web/20140611071855/http://www.boeing.com/boeing/defense-space/space/bss/launch/launch_sched.page|archive-date=June 11, 2014}}</ref><ref>{{cite web|title=Atlas V to Launch GPS IIF-7|url=http://www.ulalaunch.com/atlas-v-to-launch-gps-iif7.aspx?title=Atlas+V+to+Launch+GPS+IIF-7|publisher=United Launch Alliance|access-date=2 August 2014}}</ref> |
||
Line 136: | Line 138: | ||
| style="text-align:left;" | Atlas V 401, s/n AV-050 |
| style="text-align:left;" | Atlas V 401, s/n AV-050 |
||
| style="text-align:left;" | Cape Canaveral, SLC-41 |
| style="text-align:left;" | Cape Canaveral, SLC-41 |
||
| {{yes|In |
| {{yes|In service}} |
||
| style="text-align:left;" | |
| style="text-align:left;" | |
||
| style="text-align:left;" | <ref name="GPS IIF-8FT">{{cite web |title=Atlas V successfully vaults satellite to orbit |url=http://www.floridatoday.com/story/tech/science/space/2014/08/02/ula-atlas-v-blasts-off-cape-canaveral-gps-satellite/13502135/ |publisher=Florida Today |date= 2 August 2014|access-date=29 October 2015}}</ref><ref>{{cite web|url=http://www.navcen.uscg.gov/?Do=gpsShowNanu&num=2014090|title=NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014090|publisher=United States Coast Guard|date=12 December 2014|access-date=29 October 2015}}</ref> |
| style="text-align:left;" | <ref name="GPS IIF-8FT">{{cite web |title=Atlas V successfully vaults satellite to orbit |url=http://www.floridatoday.com/story/tech/science/space/2014/08/02/ula-atlas-v-blasts-off-cape-canaveral-gps-satellite/13502135/ |publisher=Florida Today |date= 2 August 2014|access-date=29 October 2015}}</ref><ref>{{cite web|url=http://www.navcen.uscg.gov/?Do=gpsShowNanu&num=2014090|title=NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014090|publisher=United States Coast Guard|date=12 December 2014|access-date=29 October 2015}}</ref> |
||
Line 145: | Line 147: | ||
| style="text-align:left;" | Delta IV-M+(4,2), s/n D371 |
| style="text-align:left;" | Delta IV-M+(4,2), s/n D371 |
||
| style="text-align:left;" | Cape Canaveral, SLC-37B |
| style="text-align:left;" | Cape Canaveral, SLC-37B |
||
| {{yes|In |
| {{yes|In service}} |
||
| style="text-align:left;" | |
| style="text-align:left;" | |
||
| style="text-align:left;" | <ref>{{cite web|title=United Launch Alliance GPS IIF-9|url=http://www.ulalaunch.com/uploads/docs/Mission_Booklets/DIV/div_gpsiif9_mob.pdf|access-date=25 March 2015}}</ref> |
| style="text-align:left;" | <ref>{{cite web|title=United Launch Alliance GPS IIF-9|url=http://www.ulalaunch.com/uploads/docs/Mission_Booklets/DIV/div_gpsiif9_mob.pdf|access-date=25 March 2015}}</ref> |
||
Line 154: | Line 156: | ||
| style="text-align:left;" | Atlas V 401, s/n AV-055 |
| style="text-align:left;" | Atlas V 401, s/n AV-055 |
||
| style="text-align:left;" | Cape Canaveral, SLC-41 |
| style="text-align:left;" | Cape Canaveral, SLC-41 |
||
| {{yes|In |
| {{yes|In service}} |
||
| style="text-align:left;" | |
| style="text-align:left;" | |
||
| style="text-align:left;" | <ref name="boeingsched"/> |
| style="text-align:left;" | <ref name="boeingsched"/> |
||
Line 163: | Line 165: | ||
| style="text-align:left;" | Atlas V 401, s/n AV-060 |
| style="text-align:left;" | Atlas V 401, s/n AV-060 |
||
| style="text-align:left;" | Cape Canaveral, SLC-41 |
| style="text-align:left;" | Cape Canaveral, SLC-41 |
||
| {{yes|In |
| {{yes|In service}} |
||
| style="text-align:left;" | |
| style="text-align:left;" | |
||
| style="text-align:left;" | <ref name="boeingsched"/><ref>{{cite web|title=Atlas V to Launch GPS IIF-11|url=http://spaceflightnow.com/2015/10/29/av-060-journal/|date=31 October 2015|access-date=31 October 2015}}</ref> |
| style="text-align:left;" | <ref name="boeingsched"/><ref>{{cite web|title=Atlas V to Launch GPS IIF-11|url=http://spaceflightnow.com/2015/10/29/av-060-journal/|date=31 October 2015|access-date=31 October 2015}}</ref> |
||
Line 172: | Line 174: | ||
| style="text-align:left;" | Atlas V 401, s/n AV-057 |
| style="text-align:left;" | Atlas V 401, s/n AV-057 |
||
| style="text-align:left;" | Cape Canaveral, SLC-41 |
| style="text-align:left;" | Cape Canaveral, SLC-41 |
||
| {{yes|In |
| {{yes|In service}} |
||
| style="text-align:left;" | |
| style="text-align:left;" | |
||
| style="text-align:left;" | <ref name="boeingsched"/><ref>{{cite web|title=New GPS satellite begins transmitting to users around the globe|url=http://spaceflightnow.com/2016/03/09/new-gps-satellite-begins-transmitting-to-users-around-the-globe/|access-date=9 March 2016}}</ref> |
| style="text-align:left;" | <ref name="boeingsched"/><ref>{{cite web|title=New GPS satellite begins transmitting to users around the globe|url=http://spaceflightnow.com/2016/03/09/new-gps-satellite-begins-transmitting-to-users-around-the-globe/|access-date=9 March 2016}}</ref> |
Revision as of 03:11, 15 May 2021
![]() Artist's impression of a Block IIF GPS satellite in orbit | |||
Manufacturer | Boeing | ||
---|---|---|---|
Country of origin | Vereinigte Staaten | ||
Operator | United States Air Force | ||
Applications | Satellite navigation | ||
Specifications | |||
Launch mass | 1,633 kg (3,600 lb) [1] | ||
Power | 1952 watts (end of life) [1] | ||
Regime | Semi-synchronous MEO | ||
Design life | 12 years (planned) | ||
Production | |||
Status | Production completed | ||
On order | 0 | ||
Built | 12 | ||
Launched | 12 | ||
Operational | 12 | ||
Maiden launch | GPS IIF SV-1 28 May 2010, 03:00 UTC | ||
Last launch | GPS IIF-12 5 February 2016, 13:38 UTC | ||
|
GPS Block IIF, or GPS IIF is an interim class of GPS (satellite), which are used to keep the Navstar Global Positioning System operational until the GPS Block IIIA satellites become operational. They were built by Boeing, to be operated by the United States Air Force being launched by United Launch Alliance (ULA), using Evolved Expendable Launch Vehicles (EELV).[2] They are the final component of the Block II GPS constellation to be launched. On 5 February 2016, the final satellite in the GPS Block IIF was successfully launched, completing the block.
The spacecraft have a mass of 1,633 kg (3,600 lb) and a design life of 12 years. Like earlier GPS satellites, Block IIF spacecraft operate in semi-synchronous medium Earth orbits, with an altitude of approximately 20,460 km (12,710 mi), and an orbital period of twelve hours.
The satellites replace the GPS Block IIA satellites that were launched between 1990 and 1997 and were designed to last 7.5 years.[3] The final satellite of the Block IIA series was decommissioned on 25 January 2016.[4] The operational constellation now includes Block IIR, IIRM and IIF variants.
Because the Evolved Expendable Launch Vehicles are more powerful than the Delta II, which was used to orbit earlier Block II GPS satellites, they can place the satellites directly into their operational orbits. As a result, Block IIF satellites do not carry apogee kick motors. The original contract for Block IIF, signed in 1996, called for 33 spacecraft. This was later reduced to 12, and program delays and technical problems pushed the first launch from 2006 to 2010.[5]
New characteristics
- Broadcasting L5 "safety of life" navigation signal demonstrated on USA-203 [3]
- Broadcasting a new M-code signal [3]
- Doubling in the predicted accuracy [6]
- Better resistance to jamming [3]
- Reprogrammable processors that can receive software uploads [3]
- The first GPS satellites not to have Selective Availability (SA) hardware installed, which degraded civilian accuracy when turned on in the original satellite fleet [3]
Launch history
Overall, 12 GPS Block IIF satellites were launched, all of which are currently operational:
Satellite | USA designation | Launch date (UTC) |
Rocket | Launch site | Status | Notes | Ref. |
---|---|---|---|---|---|---|---|
GPS IIF-1 | USA-213 | 28 May 2010, 03:00 | Delta IV-M+(4,2), s/n D349 | Cape Canaveral, SLC-37B | In service | [6][7][8] | |
GPS IIF-2 | USA-232 | 16 July 2011, 06:41 | Delta IV-M+(4,2), s/n D355 | Cape Canaveral, SLC-37B | In service | [9] | |
GPS IIF-3 | USA-239 | 4 October 2012, 12:10 | Delta IV-M+(4,2), s/n D361 | Cape Canaveral, SLC-37B | In service | This launch came shortly before the 10th anniversary of the inaugural Delta IV launch. | [10] |
GPS IIF-4 | USA-242 | 15 May 2013, 21:38 | Atlas V 401, s/n AV-039 | Cape Canaveral, SLC-41 | In service | [11][12] | |
GPS IIF-5 | USA-248 | 25 February 2014, 01:59 | Delta IV-M+(4,2), s/n D365 | Cape Canaveral, SLC-37B | In service | [13] | |
GPS IIF-6 | USA-251 | 17 May 2014, 00:03 | Delta IV-M+(4,2), s/n D366 | Cape Canaveral, SLC-37B | In service | [14] | |
GPS IIF-7 | USA-256 | 2 August 2014, 03:23 | Atlas V 401, s/n AV-048 | Cape Canaveral, SLC-41 | In service | [15][16] | |
GPS IIF-8 | USA-258 | 29 October 2014, 17:21 | Atlas V 401, s/n AV-050 | Cape Canaveral, SLC-41 | In service | [17][18] | |
GPS IIF-9 | USA-260 | 25 March 2015, 18:36 | Delta IV-M+(4,2), s/n D371 | Cape Canaveral, SLC-37B | In service | [19] | |
GPS IIF-10 | USA-262 | 15 July 2015, 15:36 | Atlas V 401, s/n AV-055 | Cape Canaveral, SLC-41 | In service | [15] | |
GPS IIF-11 | USA-265 | 31 October 2015, 16:13 | Atlas V 401, s/n AV-060 | Cape Canaveral, SLC-41 | In service | [15][20] | |
GPS IIF-12 | USA-266 | 5 February 2016, 13:38 | Atlas V 401, s/n AV-057 | Cape Canaveral, SLC-41 | In service | [15][21] |
See also
- BeiDou Navigation Satellite System
- BeiDou-2 (COMPASS) navigation system
- Galileo (satellite navigation)
- GLONASS
- Quasi-Zenith Satellite System
References
- ^ a b "Global Positioning System". Boeing. Retrieved 6 May 2016.
- ^ "Global Positioning System (GPS) IIF". Boeing. Retrieved 27 May 2010.
- ^ a b c d e f "First Block 2F GPS Satellite Launched, Needed to Prevent System Failure". DailyTech. Archived from the original on 30 May 2010. Retrieved 30 May 2010.
- ^ "GPS CONSTELLATION STATUS". U.S. Coast Guard Navigation Center. Retrieved 25 January 2016.
- ^ Pike, John. "GPS Block II F". Globalsecurity.org. Retrieved 27 May 2010.
- ^ a b "Mission Overview" (PDF). Delta IV Launches GPS IIF SV-1. United Launch Alliance. 28 May 2010. Retrieved 29 October 2015.
- ^ Tariq Malik (28 May 2010). "Air Force Launches Advanced New GPS Satellite". SPACE.com.
- ^ "ULA Marks Delta 50th Anniversary with Successful Delta IV GPS IIF SV-1 Launch". United Launch Alliance. 28 May 2010. Retrieved 29 October 2015.
- ^ "United Launch Alliance Marks the 50th Successful GPS Launch for the Air Force with the Delivery of the GPS IIF-2 Mission to Orbit". United Launch Alliance. 16 July 2011. Retrieved 29 October 2015.
- ^ "United Launch Alliance GPS IIF-3". United Launch Alliance. Archived from the original on 1 October 2012. Retrieved 8 October 2012.
- ^ "ULA Atlas V sets sail with new GPS satellite". NASASpaceFlight.com. 15 May 2013. Retrieved 15 May 2013.
- ^ "Orbit Data and Resources on Active GNSS Satellites". GPS World. Retrieved 6 March 2014.
- ^ "United Launch Alliance Successfully Launches 25th Delta IV Mission Carrying Global Positioning System Satellite for the U.S. Air Force". United Launch Alliance. Archived from the original on 9 February 2014. Retrieved 6 March 2014.
- ^ "Sixth GPS IIF Spacecraft Launches". Inside GNSS. 17 May 2014.
- ^ a b c d "Boeing Satellite Launch Schedule". Boeing. Archived from the original on 11 June 2014. Retrieved 17 May 2014.
- ^ "Atlas V to Launch GPS IIF-7". United Launch Alliance. Retrieved 2 August 2014.
- ^ "Atlas V successfully vaults satellite to orbit". Florida Today. 2 August 2014. Retrieved 29 October 2015.
- ^ "NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014090". United States Coast Guard. 12 December 2014. Retrieved 29 October 2015.
- ^ "United Launch Alliance GPS IIF-9" (PDF). Retrieved 25 March 2015.
- ^ "Atlas V to Launch GPS IIF-11". 31 October 2015. Retrieved 31 October 2015.
- ^ "New GPS satellite begins transmitting to users around the globe". Retrieved 9 March 2016.