ARSARNERIT * An Overview. Working Group for Arctic Satellite Communication. A Broadband Satellite Communication System for the Arctic

Transcription

1 ARSARNERIT * A Broadband Satellite Communication System for the Arctic An Overview Working Group for Arctic Satellite Communication Flemming Hansen RadioLab Consulting Illustration: Jan Erik Rasmussen, DTU Space * Greenlandic: Northern Lights

2 Background ARSARNERIT* is a satcom mission proposal by RadioLab Consulting in 2012 to cover the entire Arctic above 65 N with broadband services. In October 2016, a Working Group for Arctic Satellite Communication (WG-AS) was formed to study the concept and develop a business plan. The WG-AS consists of: Defence Command Denmark Tele-Post (Tele Greenland) (the Greenland telecom operator) (chairman) Síminn, Iceland (the Iceland telecom operator) Føroyar Tele, Faroe Islands (the Faroe Islands telecom operator) Danish Defence Acquisition and Logistics Organisation DTU Space, with RadioLab Consulting offering the satcom expertise. An Advisory Group for Arctic Satellite Communication (AG-AS), chaired by the Danish Defence, was also established. The WG-AS produced a final report on the 31 st of March 2017, which was approved by the Advisory Group on the 19 th of April and published on the 21 st of April. * Northern Lights in Greenlandic FH

3 Light = Human Activity = Business opportunities Upernavik Uummannaq Ilulissat Qeqertarsuaq Aasiaat Sisimiut Nuuk Greenland Tasiilaq Ittoqqortoormiit Reykjavík FH Qaqortoq NASA Suomi NPP VIIRS day/night band image 3

4 Population distribution in the circumpolar Arctic, by country About 4 million total population in the Arctic - of which half is in Russia Not counting the Russian population, and not counting those served by terrestrial communications solutions, leaves a target population for satcom not likely to exceed population-distribution-in-thecircumpolar-arctic-by-country-includingindigenous-population_1282 FH

5 Constraints on GEO Satellite Communication in the Arctic Radius of zone not covered from GEO: 900 km GEO satellites below horizon 81.9 N GEO satellite communication possible, but problematic Illustration: Jan Erik Rasmussen, DTU Space FH

6 Problems using GEO satellites in east-west oriented fjords and valleys Illustration: Jan Erik Rasmussen, DTU Space FH

7 The GEO Coverage Gaps Oslo 75 N 60 N Coverage gap (6 places) Example: Inmarsat BGAN coverage map FH

8 The Iridium System and Terminals 66 satellites + spares in 781 km orbits, 86.4 inclination, in 6 orbital planes, global coverage since mm diameter Iridium Pilot Terminal 134 kbit/s data 3 phone lines USD to 0.49 per MB Iridium Extreme Satellite Phone Voice, SMS, short services, 2400 bps data. 4 hour talk time Iridium to terrestrial DKK 7.75 per min. Iridium to Iridium DKK 4.50 per min. Iridium Extreme Phones for sale at the TELE-POST shop in Nuuk. Price: DKK 9999,- Price: USD 4999 FH

9 Microwave and Satellite Communication Links in Greenland 2018 (TELE Greenland info + augmentations) 11 m Satellite Earth Station in Aasiaat N W Siorapaluk Qaanaaq Qeqertat Citronen Fjord 83.1 N 81.6 N Danmarkshavn Remote Microwave Repeater Station Microwave link extension Uummannaq Upernavik Kullorsuaq Kangersuatsiaq 75 N Sirius Patrol HQ Greenland Connect - Extension. Completed m Satellite Earth Station in Nuussuaq GREENLAND CONNECT undersea cable Greenland Connect fibre-optic undersea cable to Canada. In operation from March 23, 2009 Microwave Link N W Greenland Connect fibre-optic undersea FH cable to Iceland 9

10 SAT-AIS Ship Positions from Norwegian AISsat-1 Sept Sept Launch dates: AISsat-1: AISsat-2: AISsat-3: dot = 1 ship-day FH

11 Oil & gas exploration in Greenland 75 N Photo: Cairn energy Source: The struggle for Greenland's oil, Financial Times Magazine Which services will be needed? Like for ships + Heavy data comms for oil & gas seismic data and mineral exploration data FH

12 Research Stations Villum Research Station Nord, N, W (not GEO reachable) Zackenberg Research Station, East Greenland, N, W (GEO reachable) FH

13 Mining: Citronen Fjord Lead/Zinc Deposit, N, W Citronen Project Feasibility Report, was released 29 April, At this Northern outpost only Iridium will provide satcom coverage FH

14 The Sirius Dog Sledge Patrol The Sirius Patrol uses Iridium phones for communication km covered by dog sledge FH

15 Shipwreck of Maxim Gorkiy, 19 June 1989, by drifting ice N, 4.15 E Weather was fair, Norwegian Coast Guard ship Senja was a few hours away, all 611 passengers and 379 crew members were saved to Senja and Longyearbyen, Svalbard + FH

16 ADS-B tracking of airplanes from GomSpace GOMX-1 satellite ADS-B flight tracking Based on 2 weeks of recorded data Courtesy: Lars Alminde, GomSpace ApS According to information from ISAVIA airplanes flew h north of 70 N There were trans-polar flights in 2016 FH

17 Communication Needs in the Polar areas as estimated in 2016 by Northern Sky Research (NSR) The NSR study estimates the market for Non-GEO High Throughput Satellite capacity in the Polar areas to be around 10 Gbit/s in This is roughly 10 times the ESA ArctiCOM study in Note that Polar in this context means both Arctic and Antarctic coverage, although the largest market is expected in the Arctic. HTS = High Throughput Satellite FH

18 Two Satellites in Molniya Orbit Provide Continuous Coverage Two satellites in Molniya orbits provide continuous coverage of the entire Arctic with handover every 6 hours User terminal: based on Inmarsat Global Xpress specs: 60 cm parabolic antenna 5 W TX power stage Optional payload: EGNOS transponder Forward link at apogee: 9 spot beams each 120 Mbit/s => 1080 Mbit/s total 2 x 2 sats => 2160 Mbit/s for system Reverse Link: 4 Mbit/s per user Interoperable with Inmarsat Global Xpress and other GEO systems => A user needs only one terminal Animation: Jan Erik Rasmussen, DTU Space FH

19 ARSARNERIT System Overview Space Segment Ground Segment (Location TBD) MCC FH

20 ARSARNERIT Spacecraft PROBA-V type platform: m, 200 kg GPS Antennas Star Trackers ARSARNERIT (Northern Lights) Solar Array (one of two) 748 W total at BOL 648 W total at EOL Ka-band Transponders: 7 x 96 W = 672 W DC 55% duty cycle (not visible) Mission lifetime: 15 years Solar Array Solar Array Drive Mechanism Offset parabolic reflector Horn for Teleport beam TM/TC Antennas 7 x Feed horns (shown is old 7-spot config.) Illustration: Jan Erik Rasmussen, DTU Space FH

21 Elevation Angles at Station Nord (81.6 N) from Molniya Orbit degrees Elevation angle km Plotted over 24 hours Distance to ground station Handover altitude interval FH

22 Environment-and-energy/Zones-of-marine-activityin-the-Arctic/ Proposed new Spot Beam Tessellation Coverage down to 65 N More spots = more bandwidth to populated and navigated areas. Single spot to cover extreme northern areas where demand is less Greater overlap between spots than old concept FH FH

23 True Coverage from Apogee with Spot Beam Tessellation Satellite at Apogee, 45 W FH

24 Timeline Year Quarter Extended Feasibility Studies (Phase A) ITU Filing Proposal for ESA CDF Validation Q1 Q2 # Q3 Q4 Q1 Q2 Q3 Q4 ESA CDF Validation Update Business Plan Building Partnership & Organisation Funding options Prepare Mission Reqirements Spec. Go/NoGo Decision Tendering & Contract Placement Phase B (Detailed Design) Phase C/D (Implementation) Launch Commissioning * Operations Decommissioning # The submission deadline for Danish industry-initiated ARTES proposals is May 1st, 2018 * The milestone denotes the final presentation of the results of the CDF Validation Study FH

25 Canadian Space Agency Augmentations by RadioLab Consulting FH