Outernet: Development Of A 1U Platform To Enable Low Cost .

Outernet:Development of a 1U Platform to EnableLow Cost Global Data Provision

IntroductionOne of the UK’s leadingspace companies, andthe only whollyUK-ownedISO 9001:2008 accreditedQuality ManagementBroad space capability: Subsystems Platforms End-to-end missions Constellation design andimplementationPrime contractor.Cleanroom will produce 60 spacecraft from mid-2015 toend of 2016, to service 5 unique missions.Strategicpartnersforcomplexpayloads.Over 10 years experience in spacecraft subsystemsGlobal leader in CubeSattechnologgy, with hardwareon c40% of CubeSatmissionsWorld’s leadingsupplier of smallspacecraft powersystems

Pathfinder for Affordable, Space BasedTelecom NetworkOuternet Nanosatellites being developed UK SpaceAgency, with support from the World Bank and OuternetOuternet will broadcast updates from the internet acrossthe entire planet, including areas traditionally lacking, orwith restricted access to, the internet.Outernet can broadcast Emergency data, and real timeprice data to farmers in remote locations; medical data,and educational content.OUTERNET WILL PROVIDE A FREE SERVICE

Objective of an Operational OuternetNanosatelite ConstellationProvide 10MB of useable, unique data:Per day,For free,To user anywhere on earth.User Requested content on:Health Care Instruction.Educational Resources(Languages, Sciences).Disaster Recovery.- Rural Communication.User requested information forNational Library of Malawi includes:Aquaponics Information.Computer ProgrammingAdvice.Food Security Research.

Clyde Space IOD Mission Considerations andObjectivesMission Parameter: Launch 3 x 1U CubeSats. Launch 1 x 3U Cubesats. Broadcast-only system in UHFand S-Band (3U), with GPSScheduled User Content. Achieve extremely lowproduction cost (to supportFree Service). Develop a Global SatelliteCommunications System (inminiature). Engage with Department forInternational stakeholders toenhance Global Uptake.Clyde Space Approach: Investigate trade off’s betweendata provision and powerbudgeting using In Orbit Test. Investigate low cost, automatedproduction methodologies. Strict Enforcement of ‘StandardSubsystem Use’. GPS/Galileo-Input Payload andsystem scheduling. Investigate Passive Orbit Phasingtechniques and control modes. Promote Understanding of, andgenerate affordable, Space BasedSolutions to Humanitarianproblems. BETTER PREPARE CLYDE SPACE TOCOMPLETE COMMERCIALLYVIABLE NANOSATELLITE M2MMISSIONS.

Standard Product Developmentsrequired for CommerciallyOperational Constellation: Ensure highly available system Lightweight 1UStructure 130g. Thermal Grounding ofPrimary Com. PA. Facilitate rapid destack and re-harness. Hard and Soft Watch-dog systems.EDAC Scrubbed with SEC-DED faultmonitoring.MRAM Scalable in mass. Worst Case Analysis shows systemappropriate for commercial telecommissions in LEO over 4 year lifetime. Manufactured and tested in volume. High Performance: 150MHz180DMIPS. Low power consumption 350-400mW consumption4MJ per DMIP

Volume Product to Achieve -per-Bit System Cost“All Outernet Subsystems shall be manufactured using automated Production andTest techniques. This is a practical requirement to meeting Space Segment Costrequirements.”Clyde Space have worked with a supplier to the UKMOD to aid volume production techniques.

1U Outernet Space SegmentSystem ParameterValueMass1311gPeak PowerGeneration4.6WCommsSecure uplink;Broadcast Downlink in UHF(military band), 9k6 baud.S-band 3U Variant, 2Mbps.ADCSMagnetic Control,Sun-Tracking,Spin Stabilised during missionmode.PowerVbat, 3V3, 5V busses;20Whr LiPo capacity battery(10% max. DoD).OrbitTBC:550km SSO;Inclination; 45-deg.Eccentricity; 0.03NotesNot includingAlbedo.Rocket LabsElectron LaunchVehicle.

3U Outernet Space SegmentSubsystemConfigurationStructure (STR)Electrical Power System (EPS)Battery (BAT)3U Primary STR harnessing.3rd Generation (3G) FleX EPSStandalone 60Whr BAT moduleBody Mounted SAs Double sided 3U Deployable SAClyde Space OBCBright Ascension Generation 1 SFWCMC VHF/UHF Transceiver (VUTRX) Omnidirectional VHF/UHF Deployable DipoleAntennas & Antenna Deployment MechanismS-Band Transmitter (STX) S-Band Patch AntennaADCS Motherboard Coarse & Fine Sun SensorsSolar Array (SA)On-board Computer (OBC)On-board Software (SFW)Communications (COMMS)PrimaryCommunications (COMMS)Secondary Attitude Determination &Control System (ADCS)3 axis reaction wheels SA Embedded Magnetorquers OBC Integrated Global Positioning System (GPS) Star TrackerPlatformPowerADCSFlex EPSADCS MB60 nnaSolararraysPrimarystructureADCSControl MFine Sunsensor3 axisReactionWheelsOBC SW

Outernet Broadcast StrategyDownlink scheduling will be refreshedapproximately every 24 Hours –enabling a full Earth rotation so that forany orbit geometry an orbit-orbitoverlapped ground swath is assured.Given the number, k of ground passesover a receiver, 2k schedules will berepeated each 24 hours (1 for N-Sdescending passes, another for S-NAscending passes).Average pass time, t approx 210seconds.

Summary3 x 1U Outernet Satellites, and 1 x 3U higher power variant shall belaunched in late 2016 (December); Early 2017 (January).Clyde Space has calibrated a production line of standardised, machinemanufactured and tested components to enable rapid scaling of theOuternet Constellation post-IOD.Clyde Space considers that Outernet mission concepts can be scaled tosupport many low-data-rate M2M concept applications.OUTERNET WILL PROVIDE A FREE SERVICE TO ENABLE HUMANITARIANAPPLICATIONS, WHICH CLYDE SPACE ARE PROUD TO SUPPORT

Any Questions?info@Clyde.Space/ClydeSpace@ClydeSpace CE#SPACEISAWESOME

manufactured and tested components to enable rapid scaling of the Outernet Constellation post-IOD. Clyde Space considers that Outernet mission concepts can be scaled to support many low-data-rate M2M concept applications. OUTERNET WILL PROVIDE A FREESERVICE TO ENABLE HUMANITARIAN APPLICATIONS, WHICH CLYDE SPACE ARE PROUD TO SUPPORT