SES ASTRA. DLR / ESA ARTES XI Workshop June 2006, Rottach-Egern 2006/06/29 SES ASTRA PROPRIETARY

Transcription

1 SES ASTRA DLR / ESA ARTES XI Workshop June 2006, Rottach-Egern 2006/06/29 SES ASTRA PROPRIETARY

2 Overview Context Mission profile Technical Concept Example coverage maps 2006/06/29 SES ASTRA PROPRIETARY Slide 2

3 Business context Increasing capacity needs, requiring high flexibility 2-way services Government services (incl. military and disaster recovery) Intercontinental connectivity and trunking/cellco backhauling (regional) DTH (HDTV, mobile TV, IPTV) Decreasing Tpx sales price on most markets and segments Cost per GEO tpx in-orbit [EOL] as per bus size Small Medium Large 6.3 to 5.8 M /tpx 5.5 M /tpx 3.5 M /tpx Including launch, insurance including 1 st year in orbit, ground segment and contingency Translates into cost per Mbit/s delivered with a given QoS 2006/06/29 SES ASTRA PROPRIETARY Slide 3

4 Mission profile Substantial business risks on first mission Financial risks, higher insurance costs Schedule risk, no heritage yet Internal: SES procurement guidelines & back-log build-up Uncertain market demand High flexibility is required to mitigate risks Fully-steerable beams for coverage and GEO slot flexibility Flexible intra and inter-beam interconnectivity ISL for flexible connectivity and organic growth First mission s risk profile : not for premium DTH services, but for exploration of new emerging markets 2006/06/29 SES ASTRA PROPRIETARY Slide 4

5 Direct injection efficiency Arianespace guidelines: for a small satellite with direct GSO injection, the launch mass should not exceed 1295 kg for a Kourou Soyuz. Accounting for mass uncertainties, the target launch mass with all fuels should then be set < 1200 kg Launchers with re-ignitable cryogenic LOX/LH2 upper stages, like Atlas 5, Delta 4 or the Indian GSLV (stage under development) allow quite efficient GEO direct injection. The development of the ESC-B with the re-ignitable LOX/LH2 Vinci engine for Ariane has been stopped and the Soyuz has a Kerosene/LOX upper stage, similar in Isp to what Proton has. One could investigate use of ADN based green propellants, as studied by SSC currently. Note: The optional apogee engine proposed by OHB in their latest design makes these comments obsolete. 2006/06/29 SES ASTRA PROPRIETARY Slide 5

6 Technical concept Use of small Geostationary platform, to be developed Dry mass <1100kg, 3-4kW P/L-power Compatible with Proton, Zenit, Soyuz, Ariane-5(TBC) launchers Ku-band services into regional spot beams 16 to 20 x 85W active TWTs high G/T for VSAT-services, preferably using VSAT-frequencies EIRP compatible with DTH Ka-band anchor beams 4 x 100W TWTs Options, subject to accommodation constraints: Possible addition of BSS-channels for broadcast (TV) services Utilization of ISL (RF or optical) Improve single-hop reach with additional satellites 2006/06/29 SES ASTRA PROPRIETARY Slide 6

7 Small GEO system overview 1 or 2 Ka-band and 2 Ku-band steerable beams Quasi-total beam interconnectivity ISL capability ISL Ku-band Ku-band Ka-band Ka-band User beam 2 Anchor beam 1 Europe Anchor beam 2 User beam 1 Anywhere visible 2006/06/29 SES ASTRA PROPRIETARY Slide 7

8 Possible coverage maps* SATSOFT 5.00 SATSOFT 5.00 Theta*sin(phi) in Degrees 0.00 Theta*sin(phi) in Degrees Theta*cos(phi) in Degrees Theta*cos(phi) in Degrees Further studies required, fully steerable beams Ka-band beam (~1.5 ) Ku-band beam (~2.5 ) 2006/06/29 SES ASTRA PROPRIETARY Slide 8

9 Candidate S/C-configuration (Ku/Ka-band) Small-GEO Spot 1 Tx (Ku) (2m) 12 Ku-channels 2x6ch-Omux 85 W TWTs Anchor beam 1 2 Ka-channels 2 output-filters (70cm*) Anchor beam 2 2 Ka-channels 2 output-filters (70cm*) Spot 2 Tx (Ku) (2m) 12 Ku-channels 2x6ch-Omux 85 W TWTs e.g. 24 Ku band + 4 Ka band channels installed *) diameter: 70 cm or (TBC) 1m Flexible routing between User and Anchor beams, between User beams and within each User beam (intra-beam routing), will require a complex transponder inputswitching network. 2006/06/29 SES ASTRA PROPRIETARY Slide 9

10 EIRP-pattern for 2m single-offset steerable User-beam (Ku-band) Key data: C.f dbw f = 11.7 GHz 85W TWT at sat. Pattern distortion due to reflector-steering not shown Shaped for reduced peak/edge-ratio (flat-topping) Note: Not shrunk for Beam Pointing Error Pattern subject to further optimization: Practical realisations may locally differ up to ±1dB 2006/06/29 SES ASTRA PROPRIETARY Slide 10

11 55 EIRP-pattern for anchor pencil beam (Ka-band) Single-offset reflector mounted on nadir m reflector Key data: C.f. 12 dbw f = 19.2 GHz 100W TWT at -4.5dB OBO (NOP) No shaping Pattern distortion due to reflector-steering not shown! cm reflector Note: Not shrunk for Beam Pointing Error Pattern subject to further optimization: Practical realisations may locally differ up to ±1dB /06/29 SES ASTRA PROPRIETARY Slide 11

12 Thank you! 2006/06/29 SES ASTRA PROPRIETARY Slide 12

13 Annex : SES Corporate Presentation 2006/06/29 SES ASTRA PROPRIETARY Slide 13

14 SES Group The world s leading satellite operator by revenues, EBITDA and size of fleet Revenues of EUR million (2005) EBITDA of EUR million (2005) Group gross contract backlog: EUR million (31 December 2005) Global fleet of 43 satellites with optimal look angles and comprehensive landmass coverage A network of leading satellite operators SES ASTRA: No.1 DTH broadcast satellite system in Europe with a reach of more than 45 million households (107 million incl. cable) SES AMERICOM: Leading position in US cable head-end broadcasting serving over 10,000 head-ends with reach of approximately 80 million cable households SES NEW SKIES: the leading satellite infrastructure provider for global distribution and connectivity for regions outside North America and Europe - reaches over 40 million cable and DTH homes in emerging markets in Latin America, Africa and Asia Participations in AsiaSat, SES SIRIUS, Star One, Ciel, Quetzsat 1102 employees world-wide (end of 2005) 2006/06/29 SES ASTRA PROPRIETARY Slide 14

15 The SES GLOBAL Structure 100.0% 100.0% 100.0% North America Europe Africa, South America, the Middle East and parts of Asia 70.0% 49.0% 19.99% 75.0% 34.10% North America Latin America Nordic Area and Central Europe Asia-Pacific 15.02% 100.0% 100.0% 43.55% 100% 100.0% 1-way broadband Italy ASTRA Platform Services 2-way broad-band Europe 2-way broadband Africa Satellite Technology company Technical Services & Products 2006/06/29 SES ASTRA PROPRIETARY Slide 15

16 Global Reach Based On Regional Market Focus SES ASTRA is Europe s #1 DTH satellite service provider reaching 107 million households (incl. cable) SES AMERICOM is a major player in broadcasting for US cable services reaching some 80 million US households New Skies Satellites is a premier provider of satellite communications services, with more than 2 customers based in 79 countries Premier positioning in the satellite industry 2006/06/29 SES ASTRA PROPRIETARY Slide 16

17 The SES GLOBAL Fleet Largest satellite fleet with 43 satellites: 34 operated by wholly owned subsidiaries and 9 through equity participations Located at 32 orbital positions 2006/06/29 SES ASTRA PROPRIETARY Slide 17