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EGNOS Space Segment: Difference between revisions
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==The ESA Artemis Satellite-Navigation Mission== | ==The ESA Artemis Satellite-Navigation Mission== | ||
[[File:Artemis_Nav_Payload.JPG| The ARTEMIS Navigation Payload: block diagram |300px|thumb|right]] | |||
The ESA ARTEMIS satellite is not an ordinary telecommunications satellite. It incorporates new, advanced technologies that expand and improve all areas of navigation, mobile communication and satellite-to-satellite communications. Having reached its final orbital position on 31January 2003, ARTEMIS soon began delivering its planned data-relay, land-mobile and navigation services. In particular, its L-band land mobile payload is being used to complement and augment the European Mobile System, its data-relay payloads are being prepared to provide operational services to ENVISAT and SPOT-4, and its navigation payload a major operational element of the European Global Navigation Overlay Service (EGNOS).<ref name=" The ESA ARTEMIS Satellite Navigation Mission">The ESA ARTEMIS Satellite Navigation Mission: In Orbit Testing and use in EGNOS; J. Ventura-Traveset, P.Y. Dussauze, C. Montefusco, F. Toran, ESA GNSS-1 Project Office; C. Lezy , F. Absolonne, B. Demelenne, European Space Agency (ESA), ESA Redu Station; A.Bird; ESA, ARTEMIS Project, ESA ESTEC </ref> | The ESA ARTEMIS satellite is not an ordinary telecommunications satellite. It incorporates new, advanced technologies that expand and improve all areas of navigation, mobile communication and satellite-to-satellite communications. Having reached its final orbital position on 31January 2003, ARTEMIS soon began delivering its planned data-relay, land-mobile and navigation services. In particular, its L-band land mobile payload is being used to complement and augment the European Mobile System, its data-relay payloads are being prepared to provide operational services to ENVISAT and SPOT-4, and its navigation payload a major operational element of the European Global Navigation Overlay Service (EGNOS).<ref name=" The ESA ARTEMIS Satellite Navigation Mission">The ESA ARTEMIS Satellite Navigation Mission: In Orbit Testing and use in EGNOS; J. Ventura-Traveset, P.Y. Dussauze, C. Montefusco, F. Toran, ESA GNSS-1 Project Office; C. Lezy , F. Absolonne, B. Demelenne, European Space Agency (ESA), ESA Redu Station; A.Bird; ESA, ARTEMIS Project, ESA ESTEC </ref> | ||
Revision as of 14:55, 4 May 2011
| EGNOS | |
|---|---|
| Title | EGNOS Space Segment |
| Author(s) | GMV. |
| Level | Basic |
| Year of Publication | 2011 |
The EGNOS space segment is composed by three geostationary satellites centred over Europe:
- Inmarsat-3 AOR-E (Atlantic Ocean Region East) stationed at 15.5° W.
- Inmarsat-3 IOR-W (Indian Ocean Region West) stationed at 25.0°E.
- ESA-Artemis stationed at 21.5° E.
The main criteria followed in the selection of the satellites positions have been:
- Improve the measurement geometry and hence the system availability.
- Maximise the visibility angle diversity and hence minimise the risk of signal blocking.
- Provide dual geostationary coverage (minimum) within the core service area.
Inmarsat’s Third Generation satellites carry a navigation payload which is used by EGNOS.[1]
The ESA ARTEMIS satellite is not an ordinary telecommunications satellite. It incorporates new, advanced technologies that expand and improve all areas of navigation, mobile communication and satellite-to-satellite communications. Having reached its final orbital position on 31January 2003, ARTEMIS soon began delivering its planned data-relay, land-mobile and navigation services. In particular, its L-band land mobile payload is being used to complement and augment the European Mobile System, its data-relay payloads are being prepared to provide operational services to ENVISAT and SPOT-4, and its navigation payload a major operational element of the European Global Navigation Overlay Service (EGNOS).[2]