GPS Space Segment - Revision history

Gema.Cueto: /* Current GPS Satellite constellation */

2020-11-04T13:40:08Z

Current GPS Satellite constellation

← Older revision		Revision as of 13:40, 4 November 2020
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	More up-to-date GPS constellation status information can be found in [https://www.navcen.uscg.gov/?Do=constellationStatus NAVCEN GPS constellation status].		More up-to-date GPS constellation status information can be found in [https://www.navcen.uscg.gov/?Do=constellationStatus NAVCEN GPS constellation status].

	[[File:Operational GPS constellation.png\|\|“Summary of operational GPS constellation (~~Octiober~~ 2020)” <ref name="GPS_sats></ref>\|center\|frame\|700px]]		[[File:Operational GPS constellation.png\|\|“Summary of operational GPS constellation (October 2020)” <ref name="GPS_sats></ref>\|center\|frame\|700px]]

	==References==		==References==

Gema.Cueto at 06:50, 3 November 2020

2020-11-03T06:50:48Z

← Older revision		Revision as of 06:50, 3 November 2020
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	More up-to-date GPS constellation status information can be found in [https://www.navcen.uscg.gov/?Do=constellationStatus NAVCEN GPS constellation status].		More up-to-date GPS constellation status information can be found in [https://www.navcen.uscg.gov/?Do=constellationStatus NAVCEN GPS constellation status].

	[[File:Operational GPS constellation.png\|\|“Summary of operational GPS constellation (Octiober 2020)” <ref name=~~Stanford~~>		[[File:Operational GPS constellation.png\|\|“Summary of operational GPS constellation (Octiober 2020)” <ref name="GPS_sats></ref>\|center\|frame\|700px]]
	~~“GPS III: Building on 200 years of On-Orbit PNT Excellence”, Mark Stewart, Vice President Navigation Systems, Lockheed Martin~~</ref>\|center\|frame\|700px]]

	==References==		==References==

Gema.Cueto: /* Current GPS Satellite constellation */

2020-11-03T06:49:53Z

Current GPS Satellite constellation

← Older revision		Revision as of 06:49, 3 November 2020
Line 65:		Line 65:
	More up-to-date GPS constellation status information can be found in [https://www.navcen.uscg.gov/?Do=constellationStatus NAVCEN GPS constellation status].		More up-to-date GPS constellation status information can be found in [https://www.navcen.uscg.gov/?Do=constellationStatus NAVCEN GPS constellation status].

	Operational GPS constellation.png		[[File:Operational GPS constellation.png\|\|“Summary of operational GPS constellation (Octiober 2020)” <ref name=Stanford>
			“GPS III: Building on 200 years of On-Orbit PNT Excellence”, Mark Stewart, Vice President Navigation Systems, Lockheed Martin</ref>\|center\|frame\|700px]]

	==References==		==References==

Gema.Cueto: /* Current GPS Satellite constellation */

2020-11-03T06:48:09Z

Current GPS Satellite constellation

← Older revision		Revision as of 06:48, 3 November 2020
Line 64:		Line 64:

	More up-to-date GPS constellation status information can be found in [https://www.navcen.uscg.gov/?Do=constellationStatus NAVCEN GPS constellation status].		More up-to-date GPS constellation status information can be found in [https://www.navcen.uscg.gov/?Do=constellationStatus NAVCEN GPS constellation status].

			Operational GPS constellation.png

	==References==		==References==

Gema.Cueto: /* Current GPS Satellite constellation */

2020-11-03T06:39:09Z

Current GPS Satellite constellation

← Older revision		Revision as of 06:39, 3 November 2020
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	==Current GPS Satellite constellation==		==Current GPS Satellite constellation==

	More up-to-date GPS constellation status information can be found in [https://www.navcen.uscg.gov/?Do=constellationStatus\|NAVCEN GPS constellation status].		More up-to-date GPS constellation status information can be found in [https://www.navcen.uscg.gov/?Do=constellationStatus NAVCEN GPS constellation status].

	==References==		==References==

Gema.Cueto: /* Current GPS Satellite constellation */

2020-11-03T06:38:47Z

Current GPS Satellite constellation

← Older revision		Revision as of 06:38, 3 November 2020
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	==Current GPS Satellite constellation==		==Current GPS Satellite constellation==

	More up-to-date GPS constellation status information can be found in https://www.navcen.uscg.gov/?Do=constellationStatus\|NAVCEN GPS constellation status.		More up-to-date GPS constellation status information can be found in [https://www.navcen.uscg.gov/?Do=constellationStatus\|NAVCEN GPS constellation status].

	==References==		==References==

Gema.Cueto: /* GPS Satellite Description */

2020-11-03T06:38:20Z

GPS Satellite Description

← Older revision		Revision as of 06:38, 3 November 2020
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	[[File:GPS_Evolution.png\|\|GPS Space segment evolution <ref name=Stanford>		[[File:GPS_Evolution.png\|\|GPS Space segment evolution <ref name=Stanford>
	“GPS III: Building on 200 years of On-Orbit PNT Excellence”, Mark Stewart, Vice President Navigation Systems, Lockheed Martin</ref>\|center\|frame\|700px]]		“GPS III: Building on 200 years of On-Orbit PNT Excellence”, Mark Stewart, Vice President Navigation Systems, Lockheed Martin</ref>\|center\|frame\|700px]]

			==Current GPS Satellite constellation==

			More up-to-date GPS constellation status information can be found in https://www.navcen.uscg.gov/?Do=constellationStatus\|NAVCEN GPS constellation status.

	==References==		==References==

Gema.Cueto: /* Block III */

2020-10-30T12:31:06Z

Block III

← Older revision		Revision as of 12:31, 30 October 2020
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	===Block III===		===Block III===
	* '''Block III''': It consists in a mayor evolution of Block II, in part due to the evolution of the satellites, but also modifications on Control Segment. GPS III is needed to complete the deployment of L2C and L5 signal capabilities that began with the modernized GPS IIR-M and GPS IIF satellites The new generation of GPS satellites also introduces significant enhancements in navigation capabilities, by improving interoperability and jam resistance and with a design lifetime of 15 years. They provide the fourth civil signal on L1 band (L1C) interoperable with other GPS signals and brings the full capability to use M-Code military signal. It also plans to provide enhanced performance for increased subsystem accuracy and improved anomaly resolution. It contains multiple atomic frequency standards (Rubidium clocks), radiation-hardened design, high stability timing and automated integrity monitoring. The first launch was in December 2018 and is composed of 10 units.		* '''Block III''': It consists in a mayor evolution of Block II, in part due to the evolution of the satellites, but also modifications on Control Segment. GPS III is needed to complete the deployment of L2C and L5 signal capabilities that began with the modernized GPS IIR-M and GPS IIF satellites The new generation of GPS satellites also introduces significant enhancements in navigation capabilities, by improving interoperability and jam resistance and with a design lifetime of 15 years. They provide the fourth civil signal on L1 band (L1C) interoperable with other GPS signals and brings the full capability to use M-Code military signal. It also plans to provide enhanced performance for increased subsystem accuracy and improved anomaly resolution. It contains multiple atomic frequency standards (Rubidium clocks), radiation-hardened design, high stability timing and automated integrity monitoring. The first launch was in December 2018 and is composed of 10 units.
	*'''• Block IIIF, Follow-on Operational Satellites''': GPS IIIF, will deliver GPS III satellites beyond the first ten SVs being delivered by the GPS III program. GPS IIIF SVs (11-32) will introduce new capabilities to meet increased demands of both military and civilian users. They will maintain the technical baseline of GPS III but reducing the overall size, weight, and power required to satisfy the positioning, navigation, timing and Nuclear Detonation Detection System (NDS) mission areas with a redesigned NDS. It also looks to bring aboard new capabilities by hosting a Search and Rescue GPS payload designed to assist with the global search and rescue mission area. It enables precision ranging measurements by hosting a Laser Retro-Reflector array. It will address the consolidation of telemetry, tracking, and commanding frequencies by enabling compliance with the Unified S-Band capabilities. Finally, the program will look to address increased anti-jam capabilities for the military with a Regional Military Protection capability.<ref name= "LosAngeles">[https://www.losangeles.af.mil/About-Us/Fact-Sheets/Article/343728/gps-iii/ Los Angeles Space Force - GPSIII Information]</ref>		*'''Block IIIF, Follow-on Operational Satellites''': GPS IIIF, will deliver GPS III satellites beyond the first ten SVs being delivered by the GPS III program. GPS IIIF SVs (11-32) will introduce new capabilities to meet increased demands of both military and civilian users. They will maintain the technical baseline of GPS III but reducing the overall size, weight, and power required to satisfy the positioning, navigation, timing and Nuclear Detonation Detection System (NDS) mission areas with a redesigned NDS. It also looks to bring aboard new capabilities by hosting a Search and Rescue GPS payload designed to assist with the global search and rescue mission area. It enables precision ranging measurements by hosting a Laser Retro-Reflector array. It will address the consolidation of telemetry, tracking, and commanding frequencies by enabling compliance with the Unified S-Band capabilities. Finally, the program will look to address increased anti-jam capabilities for the military with a Regional Military Protection capability.<ref name= "LosAngeles">[https://www.losangeles.af.mil/About-Us/Fact-Sheets/Article/343728/gps-iii/ Los Angeles Space Force - GPSIII Information]</ref>

	Finally, the following table gathers the main characteristics of the different GPS Satellite blocks:		Finally, the following table gathers the main characteristics of the different GPS Satellite blocks:

Gema.Cueto: /* GPS Satellite Description */

2020-10-30T12:29:20Z

GPS Satellite Description

← Older revision		Revision as of 12:29, 30 October 2020
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	[[File:GPS_Evolution.png\|\|GPS Space segment evolution <ref name=Stanford>		[[File:GPS_Evolution.png\|\|GPS Space segment evolution <ref name=Stanford>
	“GPS III: Building on 200 years of On-Orbit PNT Excellence”, Mark Stewart, Vice President Navigation Systems, Lockheed Martin\|center\|frame\|700px]]		“GPS III: Building on 200 years of On-Orbit PNT Excellence”, Mark Stewart, Vice President Navigation Systems, Lockheed Martin</ref>\|center\|frame\|700px]]

	==References==		==References==

Gema.Cueto: /* GPS Satellite Description */

2020-10-30T12:28:45Z

GPS Satellite Description

← Older revision		Revision as of 12:28, 30 October 2020
Line 58:		Line 58:
	Finally, the following table gathers the main characteristics of the different GPS Satellite blocks:		Finally, the following table gathers the main characteristics of the different GPS Satellite blocks:

	[[File:GPS_Evolution.png\|\|GPS Space segment evolution <ref name=Stanford> ~~[http://scpnt.stanford.edu/pnt/PNT14/2014_Presentation_Files/19.GPSIII-PNT%20Excellence-Stanford.pdf~~		[[File:GPS_Evolution.png\|\|GPS Space segment evolution <ref name=Stanford>
	“GPS III: Building on 200 years of On-Orbit PNT Excellence”, Mark Stewart, Vice President Navigation Systems, Lockheed Martin~~]</ref>~~\|center\|frame\|700px]]		“GPS III: Building on 200 years of On-Orbit PNT Excellence”, Mark Stewart, Vice President Navigation Systems, Lockheed Martin\|center\|frame\|700px]]

	==References==		==References==