Galileo Search and Rescue Service - Revision history

Gema.Cueto: /* SAR/Galileo Space Availability */

2020-03-26T14:30:12Z

SAR/Galileo Space Availability

@@ Line 182: / Line 182: @@
 |SAR Repeater Availability
 | > 95%
 |}

Gema.Cueto: /* Location Performance */

2020-03-26T14:14:50Z

Location Performance

← Older revision		Revision as of 14:14, 26 March 2020
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	\|-		\|-
	!'''Parameter'''		!'''Parameter'''
	! '''~~EXPECTED VALUE~~		! '''Expected value'''
	\|-		\|-
	\| Location Probability after 1 transmitted burst		\| Location Probability after 1 transmitted burst

Gema.Cueto: /* Location Performance */

2020-03-26T14:14:32Z

Location Performance

← Older revision		Revision as of 14:14, 26 March 2020
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	\|+align="bottom" \|		\|+align="bottom" \|
	\|-		\|-
	!'''~~SAR/GALILEO INITIAL SERVICE LOCATION PERFORMANCE~~'''		!'''Parameter'''
	! '''EXPECTED VALUE		! '''EXPECTED VALUE
	\|-		\|-

Gema.Cueto: /* Notes */

2020-03-26T11:20:14Z

Notes

← Older revision		Revision as of 11:20, 26 March 2020
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	==Notes==		==Notes==
	~~The content of this article is based on the available Galileo SAR Service Definition Document (SDD) as indicated through the references.~~

	<references group="footnotes"/>		<references group="footnotes"/>

			==Credits==

			The content of this article is based on the available Galileo SAR Service Definition Document (SDD) as indicated through the references.

	==References==		==References==

Gema.Cueto: /* Infrastructure */

2020-03-26T11:19:03Z

Infrastructure

← Older revision		Revision as of 11:19, 26 March 2020
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	The signals relayed by the MEOSAR satellites are received by the three European MEOLUTs, which ensures the provision of the service over the coverage area (“SAR Galileo Coverage”, blue contour in the following figure), which includes as a minimum all search and rescue areas under the responsibilities of European territories (red contour).		The signals relayed by the MEOSAR satellites are received by the three European MEOLUTs, which ensures the provision of the service over the coverage area (“SAR Galileo Coverage”, blue contour in the following figure), which includes as a minimum all search and rescue areas under the responsibilities of European territories (red contour).

	[[File:SAR_Coverage_area.png \|450px\| Source: SAR/Galileo Service coverage and SAR/Galileo Sites <ref>[https://www.gsc-europa.eu/~~system~~/files/~~galileo_documents~~/Galileo-SAR-SDD.pdf SAR~~/Galileo~~ Service ~~coverage and SAR/Galileo Sites~~]</ref>\|none \| thumb]]		[[File:SAR_Coverage_area.png \|450px\| Source: SAR/Galileo Service coverage and SAR/Galileo Sites <ref name="SAR SDD">[https://www.gsc-europa.eu/sites/default/files/sites/all/files/Galileo-SAR-SDD.pdf Galileo SAR Service Definition Document]</ref>\|none \| thumb]]

	The European SAR/Galileo Coverage area is bounded by the following four geographic coordinates:<ref name="SAR SDD">[https://www.gsc-europa.eu/sites/default/files/sites/all/files/Galileo-SAR-SDD.pdf Galileo SAR Service Definition Document]</ref>		The European SAR/Galileo Coverage area is bounded by the following four geographic coordinates:<ref name="SAR SDD">[https://www.gsc-europa.eu/sites/default/files/sites/all/files/Galileo-SAR-SDD.pdf Galileo SAR Service Definition Document]</ref>

Gema.Cueto: /* SAR/Galileo Space Availability */

2020-03-26T11:16:57Z

SAR/Galileo Space Availability

← Older revision		Revision as of 11:16, 26 March 2020
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	\| colspan="2"\| > 99.8%		\| colspan="2"\| > 99.8%
	\|}		\|}

	In the scope of the [[Galileo_Future_and_Evolutions#Galileo_phases\|IOV]] tests campaign 77 percent of simulated distress locations were pinpointed within 2 kilometres, and 95 percent within 5 kilometres. In addition all alerts were detected and forwarded to the Mission Control Centre within a minute and a half, which largely meets the design requirement of 10 minutes<ref>[http://www.esa.int/Our_Activities/Navigation/Galileo_works_and_works_well Galileo Works, And Works Well], ESA, February 2014</ref>.

	==Implementation ==		==Implementation ==

Gema.Cueto: /* SAR/Galileo Forward Link Service */

2020-03-26T11:16:32Z

SAR/Galileo Forward Link Service

← Older revision		Revision as of 11:16, 26 March 2020
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	\|}		\|}

	==='''<u>SAR/Galileo ~~Forward~~ Link Service </u>'''===		==='''<u>SAR/Galileo Return Link Service </u>'''===

	Please find below the Minimum Performance Levels for the SAR/Galileo Return Link Service. See details in Galileo SAR SDD.		Please find below the Minimum Performance Levels for the SAR/Galileo Return Link Service. See details in Galileo SAR SDD.

Gema.Cueto: /* Performance and features */

2020-03-26T11:15:36Z

Performance and features

← Older revision		Revision as of 11:15, 26 March 2020
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	The Search and Rescue Transponder on Galileo satellites detects the distress alert from any COSPAS-SARSAT beacon emitting an alert in the 406 – 406.1 MHz band, and broadcasts this information to dedicated ground stations in the “L” band at 1544.71 MHz.<ref name="SAR SDD">[https://www.gsc-europa.eu/sites/default/files/sites/all/files/Galileo-SAR-SDD.pdf Galileo SAR Service Definition Document]</ref> COSPAS-SARSAT Mission Control Centres (MCC) carry out the position determination of the distress alert emitting beacons, once they have been detected by the dedicated ground segment.		The Search and Rescue Transponder on Galileo satellites detects the distress alert from any COSPAS-SARSAT beacon emitting an alert in the 406 – 406.1 MHz band, and broadcasts this information to dedicated ground stations in the “L” band at 1544.71 MHz.<ref name="SAR SDD">[https://www.gsc-europa.eu/sites/default/files/sites/all/files/Galileo-SAR-SDD.pdf Galileo SAR Service Definition Document]</ref> COSPAS-SARSAT Mission Control Centres (MCC) carry out the position determination of the distress alert emitting beacons, once they have been detected by the dedicated ground segment.

	Current Galileo SAR Service performance can be expressed in terms of Minimum Performance Levels (MPL) for the contribution to the SAR Forward and Return link services <ref name="SAR SDD">[https://www.gsc-europa.eu/sites/default/files/sites/all/files/Galileo-SAR-SDD.pdf Galileo SAR Service Definition Document]</ref> ~~as it is indicated in the Galileo SAR Service Definition document~~. In addition, please refer to the SAR Service Quarterly Performance reports <ref name="gsc reports">[https://www.gsc-europa.eu/electronic-library/galileo-service-performance-reports Galileo Performance Reports]</ref> which presents the performances achieved against the aforementioned MPL <ref group="footnotes">Let us note that the declaration of the Galileo SAR Return Link Service implied the publication of a new Release of the Galileo SAR Service Definition Document (v2.0). In this new release, the MPLs for the RLS were introduced and some of the MPLs for FLS were modified with respect the first issue of the Galileo SAR SDD from 2016.</ref>.		Current Galileo SAR Service performance can be expressed in terms of Minimum Performance Levels (MPL) for the contribution to the SAR Forward and Return link services as it is indicated in the Galileo SAR Service Definition document<ref name="SAR SDD">[https://www.gsc-europa.eu/sites/default/files/sites/all/files/Galileo-SAR-SDD.pdf Galileo SAR Service Definition Document]</ref>. In addition, please refer to the SAR Service Quarterly Performance reports <ref name="gsc reports">[https://www.gsc-europa.eu/electronic-library/galileo-service-performance-reports Galileo Performance Reports]</ref> which presents the performances achieved against the aforementioned MPL <ref group="footnotes">Let us note that the declaration of the Galileo SAR Return Link Service implied the publication of a new Release of the Galileo SAR Service Definition Document (v2.0). In this new release, the MPLs for the RLS were introduced and some of the MPLs for FLS were modified with respect the first issue of the Galileo SAR SDD from 2016.</ref>.

	==='''<u>SAR/Galileo Forward Link Service </u>'''===		==='''<u>SAR/Galileo Forward Link Service </u>'''===

Gema.Cueto: /* Infrastructure */

2020-03-26T11:13:07Z

Infrastructure

← Older revision		Revision as of 11:13, 26 March 2020
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	*The SAR/Galileo Network (SARN) and a SAR Server, providing an alternative source of precise Galileo orbital parameters.		*The SAR/Galileo Network (SARN) and a SAR Server, providing an alternative source of precise Galileo orbital parameters.

	[[File:SAR.png \|450px\| Source: Galileo SAR EC website <ref>[https://ec.europa.eu/growth/sectors/space/galileo/sar/initial-service_en Galileo SAR service in EC Galileo website]</ref>\|none \| thumb]]		[[File:SAR.png \|450px\| Source: Galileo SAR EC website <ref name= "EC website">[https://ec.europa.eu/growth/sectors/space/galileo/sar/initial-service_en Galileo SAR service in EC Galileo website]</ref>\|none \| thumb]]

	The SAR/Galileo Service fully exploits the signals relayed by the other available MEOSAR payloads to provide increased service availability to the Cospas-Sarsat Mission Control Centres.		The SAR/Galileo Service fully exploits the signals relayed by the other available MEOSAR payloads to provide increased service availability to the Cospas-Sarsat Mission Control Centres.

Gema.Cueto: /* Infrastructure */

2020-03-26T11:12:32Z

Infrastructure

← Older revision		Revision as of 11:12, 26 March 2020
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	See details on the SAR/Galileo Return Link service operation and on the RLM content in the Galileo SAR Service Definition Document. <ref name="SAR SDD">[https://www.gsc-europa.eu/sites/default/files/sites/all/files/Galileo-SAR-SDD.pdf Galileo SAR Service Definition Document]</ref>		See details on the SAR/Galileo Return Link service operation and on the RLM content in the Galileo SAR Service Definition Document. <ref name="SAR SDD">[https://www.gsc-europa.eu/sites/default/files/sites/all/files/Galileo-SAR-SDD.pdf Galileo SAR Service Definition Document]</ref>

	[[File:Return_Link.PNG \|450px\| SAR/Galileo Return Link Service. Source: Galileo SAR ~~SDD~~ <ref name="~~SAR SDD~~">[https://~~www~~.~~gsc-~~europa.eu/~~sites~~/~~default~~/~~files~~/~~sites~~/~~all/files~~/Galileo-SAR~~-SDD.pdf~~ Galileo ~~SAR Service Definition Document~~]</ref>\|none \| thumb]]		[[File:Return_Link.PNG \|450px\| SAR/Galileo Return Link Service. Source: Galileo SAR EC website <ref name= "EC website">[https://ec.europa.eu/growth/sectors/space/galileo/sar/initial-service_en Galileo SAR service in EC Galileo website]</ref>\|none \| thumb]]

	==Performance and features==		==Performance and features==