Electrical and Computer Engineering

UMsatNo Boundaries

www.umass.edu/umsat

Adviser: Professor Paul SiqueiraJeff Little

Kelvin ChanRohan Balakrishnan

Felipe Vilas-Boas

2Electrical and Computer Engineering

CubeSat

CubeSat Background

3Electrical and Computer Engineering

CubeSat Background

Pico-satellite: 10 cm cube with a mass of up to 1 kg.

“The CubeSat Project was developed by California Polytechnic State University, San Luis Obispo and Stanford University's Space Systems Development Lab. The CubeSat program creates launch opportunities for universities previously unable to access space.” (cubesat.org)

Upon completion, university satellites are placed in a jack in the box device developed by Cal Poly called, the “P-POD” (Poly Pico Satellite Orbital Deployer). The P-POD is carried into space on retired Soviet Ballistic Missiles, and then the P-POD jettisons the satellites into space at the proper orbit.

“Students, through hands on work, will develop the necessary skills and experience needed to succeed in the aerospace industry.” (cubesat.org)

4Electrical and Computer Engineering

UMsat: UMass Amherst’s first student built satellite UMsat Mission Statement

UMsat, founded in 2007 by University of Massachusetts Amherst undergraduates, will provide a platform for students to design, build, test, and launch pico-satellites into orbit. UMsat fosters the development of leadership skills, project commitment, and teamwork, while preparing its members for future careers in the aerospace industry.

Scientific GoalThe technical challenges that UMsat will tackle are to develop an Electronic Power System, a Communication System, an Attitude Control and Determination System, and a Data Processing and Management System. The amalgamation of these subsystems will facilitate the successful transmission of a picture of Earth taken by an onboard camera, along with the logging and transmission of health and performance data of the satellite subsystems.

5Electrical and Computer Engineering

CubeSat Background (Cont’d)

In the news…

6Electrical and Computer Engineering

In the news…

7Electrical and Computer Engineering

US CubeSat Developers and Participants

Who’s done it?

8Electrical and Computer Engineering

US CubeSat Developers and Participants

Auburn University

University of Alabama

Tuskegee University

Arizona State University

University of Arizona

Boston University

Cal Poly State University

San Jose Sate University

Stanford University

University of California Irvine

University of California Santa Barbara

University of Chicago

University of Colorado - Boulder

Florida Institute of Technology

Embry-Riddle Aeronautical University

University of Hawaii

University of Illinois

Purdue University

Taylor University

SUNY Geneseo

Iowa State University

University of Kansas

University of Louisiana

US Naval Academy

Dartmouth College

University of Massachusetts Amherst

Michigan Technological University

Wasington University - St. Louis

Montana State University

Cornell University

Polytechnic University – NYC

New Mexico State University

North Carolina State University

University of North Dakota

University of Oklahoma

University of Texas - Austin

Texas Christian University

Texas A&M

Utah State University

George Mason University

University of Washington

George Washington University

9Electrical and Computer Engineering

DARTSAT Overview

Modularity by design

10Electrical and Computer Engineering

Overview of UMsat

11Electrical and Computer Engineering

MNTMAN I

Timeline

12Electrical and Computer Engineering

Proposed Timeline

Fall 2007- Fellowships with MASGC (Massachusetts Space Grant Consortium)

Define project scope. Get necessary seed funding to pursue CubeSat Develop Electronic Power System (EPS)

hardware/software Winter/Spring 07-08

Continue engineering education in satellite systems Purchase complete CubeSat Kit, including all other

satellite hardware and ground station equipment Develop working communication system, powered by

previously developed EPS. Assemble ground station, practice communicating with

known satellites.

13Electrical and Computer Engineering

Proposed Timeline (Cont’d.)

Summer 2008- Fellowship with MASGC. Test Systems on tethered balloon Attitude Determination and Control System (ADCS)

Fall 2008 and Spring 2009 – Senior Design Project ADCS Design payload Successfully transmit and receive payload data via high

altitude balloon Create world wide amateur band network for data

reception Launch satellite and receive data

14Electrical and Computer Engineering

UMsat Budget

Cost Review

15Electrical and Computer Engineering

Systems

Mechanical System (MEC) Power System (EPS) Communication System (COM) Data Processing and Management System (DPAM) Attitude Determination and Control System (ADCS) Payload Launch Cost

16Electrical and Computer Engineering

MEC

CubeSat Kit• Flight Model

• Chassis Wall, Base Plate, Cover Plate• Development Board • FM430 Flight Module • External Power Supply• MSP430 Flash Emulation Tool and FM430

programming adapter.• Salvo RTOS software

Time System Item Qty Unit Cost Ex Cost Supplier

Spring 2008

MEC CubeSat Kit 2-U 1 $5,650.00 $5,650.00 Pumpkin

17Electrical and Computer Engineering

EPS

System Overview• Solar Panels• Batteries• Hardware

Time System Item Qty Unit Cost Ex Cost Supplier

Fall 2007 EPS UBP003 Lithium ION Rechargeable Battery

2 $20.00 $40.00 Mouser

Fall 2007 EPS Triple Junction Solar Cells

12 $200.00 $2400.00 Spectrolab

Fall 2007 EPS MAX1771 Step Up DC-DC Controller

1 Free Sample Free Sample Maxim

Fall 2007 EPS MAX1757 Lithium ION Battery Charger

1 Free Sample Free Sample Maxim

18Electrical and Computer Engineering

COM

Time System Item Qty Unit Cost Ex Cost Supplier

Spring 2008

COM 70 cm Transmitter

1 $209.00 $209.00 Hamtronics

Spring 2008

COM 2m Receiver 1 $209.00 $209.00 Hamtronics

In flight COM overview

19Electrical and Computer Engineering

Ground Station Block Diagram

20Electrical and Computer Engineering

COM

Time System Item Qty Unit Cost Ex Cost SupplierSpring 08 COM 2m antenna 1 $68.00 $68.00 Blue Star

Antenna

Spring 08 COM 70cm antenna 1 $49.00 $49.00 Blue Star Antenna

Spring 08 COM 2m Preamp, KP-2/2m 1 $200.00 $200.00 Mirage

Spring 08 COM 70cm Preamp,KP-2/440m

1 $200.00 $200.00 Mirage

Spring 08 COM Antenna Rotator/Controller G-5500

1 $600.00 $600.00 Yaesu

Spring 08 COM CPU/Antenna smart interface GS-232

1 $600.00 $600.00 Yaesu

Spring 08 COM Transceiver: IC-910H

1 $1400.00 $1400.00 ICOM America

Spring 08 COM Terminal Node Controller KMW1200+ packet modem

1 $262.00 $262.00 Kantronics

Spring 08 COM NOVA tracking software

1 $60.00 $60.00 Northern Lights

Spring 08 COM Power Supply 1 $200.00 $200.00 Astron

Spring 08 COM RF Cables (~$1/ft) 2 $150.00 $300.00 Astron

Ground Station COM overview

21Electrical and Computer Engineering

DPAM

Time System Item Qty Unit Cost Ex Cost Supplier

Fall 2007

DPAM MSP430 C-Compiler and Development Environment

1 $149.00 $149.00 Rowley

Fall 2007

DPAM MSP-FET430PIF Parallel Port Debugging Interface

12 $99.00 $99.00 Texas Instruments

Fall 2007

DPAM MSP430-F149 Development Board

1 $34.95 $34.95 MicroController Pros Corp.

System Overview• C Programming Tools

22Electrical and Computer Engineering

ADCS

Attitude Determination and Control System• The exact science behind our ADCS is yet to be determined.

• Initial thoughts are to use hard drive disks as momentum wheels, so that we may prevent tumbling through space.

• Particularly helpful if we want to point ourselves toward Earth in order to get a clear picture.

23Electrical and Computer Engineering

Payload

Payload• Initial ideas are an onboard camera, and also various sensors that will

measure the health and also performance of the various subsystems.

• This is particularly important since we hope that future UMass students will continue UMsat.

• The data that we acquire will help those students build better, more efficient systems.

24Electrical and Computer Engineering

Launch

~$40,000

25Electrical and Computer Engineering

Budget Timeline (Fall 2007)

Time System Items Supplier Total

Fall 2007 EPS MAX1757 Lithium ION Battery Charger Maxim $0.00

    MSX-01F Newark $200.00

    MAX1771 Step Up DC-DC Controller Maxim $0.00

    UBP003 Lithium ION Rechargeable Battery Mouser $40.00

  EPS Total     $240.00

  General Misc Costs / Books __ $500.00

    Various Discrete/Active Components (Res, Cap, Ind, Diodes, ect..) Avnet $100.00

  General Total   $600.00

  DPAM MSP430 C-Compiler and Development Environment Rowley $149.00

    MSP430-F149 Development BoardMicroController Pros Corp. $34.95

    MSP-FET430PIF Parallel Port Debugging Interface Texas Instruments $99.00

  DPAM Total     $282.95

Fall 2007 Total       $1,122.95

26Electrical and Computer Engineering

Budget Timeline (Spring 2008)

Time System Items Supplier Total

Winter 2007-2008 COM 2 meter antenna Blue Star Antenna $68.00

    2m Preamp, KP-2/2m Mirage $200.00

    2m Receiver Hamtonics $209.00

    70 cm antenna Blue Star Antenna $49.00

    70 cm Transmitter Hamtonics $209.00

    70cm Preamp,KP-2/440m Mirage $200.00

    Antenna Rotator/Controller G-5500 Yaesu $600.00

    CPU/Antenna smart interface GS-232 Yaesu $600.00

    Misc Costs __ $300.00

    NOVA Satellite Tracking Software for Windows Northern Lights Software Associates $60.00

    Power Supply RS35-M Astron $200.00

    RF Coax Cables (Transceiver to Antenna. ~$1/ft) __ $300.00

   Terminal Node Controller KMW1200+ packet modem Kantronics $262.00

    Transceiver: IC-910H ICOM America $1,400.00

 COM Total     $4,657.00

  MEC CubeSat Kit Pumpkin $5,650.00

 MEC Total     $5,650.00

Winter 2007 - 2008 Total     $10,307.00

27Electrical and Computer Engineering

Budget Timeline (Summer 2008-Spring 2009)

Time System Items Supplier Total

Summer 2008 ADCS $2,000.00

ADCS Total $2,000.00

General Testing $3,000.00

General Total $3,000.00

Summer 2008 Total $5,000.00

Fall 2008 Payload $2,000.00

Payload Total $2,000.00

Fall 2008 Total $2,000.00

Spring 2009 General Travel Expenses (Launch) $4,000.00

General Total $4,000.00

Launch $40,000.00

Launch Total $40,000.00

Spring 2009 Total $44,000.00

28Electrical and Computer Engineering

Funding Chart

UMsat Funding

$0.00

$10,000.00

$20,000.00

$30,000.00

$40,000.00

$50,000.00

$60,000.00

$70,000.00

$80,000.00

$90,000.00

$100,000.00

Fall 2007 Winter 07-08 Summer 2008 Fall 2008 Spring 2009

Semester

Fu

nd

s (

$)

Needed

Raised

29Electrical and Computer Engineering

References

http://news.com.com/DIY+satellites+reinvent+the+space+race/2100-11397_3-5863564.html

http://www.space.com/businesstechnology/technology/050928_cubesats.html

http://www.cnn.com/2004/TECH/space/09/09/space.cubes

http://space.newscientist.com/article.ns?id=mg18825205.600

http://engineering.dartmouth.edu/dartsat/

http://cubesat.calpoly.edu/

30Electrical and Computer Engineering

Questions

Thank You!

Any Questions?