1. CubeSat (ENG491CU1) Informational Meeting Get Interdisciplinary Design Experience Working on One of the Worlds Smallest Satellites Fall 2005

2. Presentation Overview People Involved Introduction to CubeSats Introduction to ION Semester Priorities and Teams Class Information Calendar Next Steps

3. People Purvesh Thakker (ECE PhD Student) Prof. Gary Swenson (ECE Remote Sensing) Prof. Victoria Coverstone (AE Orbital Mechanics) Prof. Matt Frank (ECE Software) Systems Team Program Manager(s) (1-2 Graduate Student TAs) Faculty Advisors (Remote Sensing, Orbital Mechanics, and Software) Systems Team Program Manager(s) (1-2 Graduate Student TAs) Faculty Advisors (Remote Sensing, Orbital Mechanics, and Software) Electrical Team Software Team Attitude Determination and Control (ADCS) Team Ground Station Team Mechanical Team Corporate Partners, Electronic Services Shop, External Faculty Advisors, Machine Shop

4. Cubesat Satellites PPOD 3 CubeSats

5. Cubesat Satellites Cubesat Project History. – Started as collaboration between California Polytechnic State University (Cal Poly) and Stanford University. – Provides a standard for design of picosatellites. Provides for common deployer. Allows for reduced cost and development time. Lets any individual or organization develop their own satellite. Standard cubesat satellite is: – 10 cm cube with mass of 1kg. Approximately 60 registered Cubesat Teams. Typically launches provided by Russian company. – Multiple cubesat ’ s piggy-back along commercial launch. – 6 cubesats were launched Summer 2003.

6. University of Illinois CubeSat Illinois Tiny Satellite Initiative started in ~August 2001 Various majors (AE, CE, EE, ME, TAM, CS, GE) Typically 15 students involved Over 100 students involved to date Completed ION shown with DNEPR launch vehicle from Russia’s Kosmotras

7. University of Illinois Cubesat - ION Costs – Parts/Labor: $30,000 USD. – Launch: $85,000 USD. Delivered to Cal Poly: April 2005 Launch date: Tentatively November, 2005 – DNEPR launch provided by Kosmotras. – 14 cubesat satellites expected launched. UIUC, Cornell, Norway, Cal Poly, South Korea, Taiwan, Arizona … Launch Parameters – Low Earth Orbit at 650-700 km. – Orbit lifetime 14+ years.

8. ION Missions Mission 1: ION’s photometer studies dynamic drivers of the upper mesosphere Thunderstorm convection Mountains Waves of oxygen airglow perturbations carried by wind (760nm) ION Misssion 2: ION tests  VAT thrusters from Alameda Mission 3: ION tests SID processor board from Tether Applications Mission 4: ION tests B/W CMOS camera Mission 5: ION demonstrates ground based attitude control on a CubeSat Sensor telemetry Actuator commands

9. ION Hardware

10. ION Photos ION’s Earth ground track Photometer with lens and filter housing Thruster (above) and thruster firing (below) Photograph from CMOS camera Torque coil on a PC board Antenna strength along outside of bagel-shaped pattern ION Internal Wiring

11. More ION Photos

12. ION Software

13. Environmental Testing ION vibration test in test PPOD Thermal-vacuum chamber DNPER High level Vibration Test Response Data, Long Axis

14. Fall 2005 Priorities ION 1 – Prepare Ground Station – Practice, practice, practice communication – Battery charger – Launch and operations? – Publications, tutorials ION 2 – Prototype power, C&DH internal software – Order and test communication system – Design structure, attitude control system – Define payloads

15. Fall 2005 Teams ION 1 Ground Team: Improve ground communications system, practice communication ION 2 Power Team: Build prototype of design from Summer ION 2 Command & Data Handling Team: Develop prototype internal communication software ION 2 Communications Team: Implement and test communications hardware including ground station ION 2 Structures Team: Design the structure of the satellite ION 2 Attitude Control Team: Design hardware and software for controlling satellite orientation ION 2 Sensors Teams: Develop payloads to support various satellite missions

16. Teams – ION 1 Ground Team Fix Antenna Practice communications with satellites Misc. ground station improvements Backup stationary antenna Operate satellite after launch Develop remote ground stations Train ground operators

17. Teams – ION 2 Power Solar Panel power point tracking Battery charger Satellite sleep mode System watchdog timer Voltage, current, and temperature sensors PIC Regulators Switches Latchup protection

18. Teams – ION 2 Cmd & Data Hnd. Define internal satellite communication Prototype internal communication bus with PICs Document internal communication interface PIC Training documents PICs Memory I2C communication Packet definition Memory management Error and flow control Prototype Main PC Board Satellite to ground communication software

19. Teams – ION 2 Communications Design communication system Select flight and ground hardware Test and modify hardware as needed Design and develop antenna

20. Teams – ION 2 Structures Satellite fabrication Fulfill all Cubesat physical spec requirements. Design frame, mounts, etc Switches, data port, separation springs Removable battery Epoxies Solar panel construction Deployable antenna?? Vibration Testing Thermal/Vacuum testing

21. Teams – ION 2 ACS Handles all ACS hardware and software Performs attitude/orbit simulation and analysis ACS sensors and actuators ACS processor Attitude control software Attitude determination software

22. Class Meetings Weekly Systems Team Meeting – Poll each team – Discuss activities from previous week – Discuss plans for next week – Announcements, etc. – Occasional special presentations by advisors/faculty. Lab Hours – No class “ lab hours ” – Each team establishes own weekly lab hours – Declare team lab hours team proposal – Log all hours with a brief description of what was done – Class requires ~50 lab hours per credit (per university guidelines)

23. Resources Course Web Site – http://cubesat.ece.uiuc.edu Course Class Drive – V:\cubesat folder on Cubesat computers – See Training folder Labs – 206H Talbot – 330E Everitt Lab ECE/Talbot Machine Shops

24. Tentative Calendar Thursday, Aug 25: Informational Meeting Monday, Aug 29: Meet with TA / Select Teams Tuesday, Aug 30: First Systems Meeting Tuesday, Sept 6: Team Proposals Tuesday, October 18: Design Review Thursday, Dec 8: Final Demo / Documentation Review

25. Team Proposals Ten minute presentation for each team Each team member should discuss their focus item Team Members with major, year, credits/hours Team semester plans Focus items for each person Week by week planned schedule Team weekly lab hours

26. Handouts Getting Started SSH into Class Drive Class Registration Form

27. Registering for CubeSat Juniors/Seniors register for Interdisciplinary Senior Design for 1 to 3 credits – ENG491CU1 (Fall) – ENG491CU1 (Spring) – Need to have approval form signed to register (available on Web Site) Grad students register for Independent Study – Course number varies by department – Thesis/Master ’ s Project sometimes possible

28. Grading Based on – Lab hours – Contributions to team – Participation in systems meetings – Participation in reviews – End of semester activity summary Success in course depends on your individual initiative

29. Next Steps Register for class Sign up for class email list Meet with TA to identify team Get access to labs, computer accounts, etc Become familiar with project – Read ION paper – Read documentation for your team – Browse available team files on class drive Establish regular team work sessions Team proposal due one week after teams established