“Fly Your Satellite! 2017” - Selection workshop - ESA/ESTEC, Noordwijk, The Netherlands - 3 May 2017

OUFTI-2 educational CubeSat projectof University of Liège, Belgium

Presented on behalf of OUFTI-2 team by studentsThibaut Guillaume (University of Liège, Belgium) &

Adrien Rikir (Haute Ecole de la Province de Liège, Belgium)

“Fly Your Satellite! 2017” - Selection workshop - ESA/ESTEC, Noordwijk, The Netherlands - 3 May 2017

OUFTI-2 educational CubeSat projectof University of Liège, Belgium

Presented on behalf of OUFTI-2 team by studentsThibaut Guillaume (University of Liège, Belgium) &

Adrien Rikir (Haute Ecole de la Province de Liège, Belgium)

SupervisorsSebastien De Dijcker (Univ. of Liège, Dept. of Electrical Engineering & Computer Science, BE)

Xavier Werner (Univ. of Liège, Department of Aerospace & Mechanics, BE)Valéry Broun (Haute Ecole de la Province de Liège, Service of Electronics, BE)

Prof. Jacques G. Verly (Univ. of Liège, Dept. of Electrical Engineering & Computer Science, BE)

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Student team4 Master thesis students 3 integrated project students 7 volunteer students

13 students

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Student team4 Master thesis students 3 integrated project students 7 volunteer students

13 students

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OUFTI-2 is our second satellite!

OUFTI-1, Belgium’s first nanosatellite, launched 25 April 2016 on Soyuz Flight VS14 under 1st FYS programme

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OUFTI-2 missions

• Primary• D-STAR: Provide D-STAR amateur radio communication repeater in space

• Secondary• RAD: Test two different types of shields to protect electronics from

space ionizing radiations• IMU: Estimate attitude of satellite using inertial & magnetic

measurements (conceived & built by high-school students)

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What is D-STAR ?

• Digital-Smart Technology for Amateur Radio • Digital communication protocol• Voice & data transmission• Radio & internet (roaming)• Radio transmissions on VHF, UHF, and L frequency bands• Data: 1200 bps - Voice: 3600 bps (AMBE encoding)• GMSK modulation

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How amateur-radio operators will use OUFTI-2 (1)

Antenna footprint

OUFTI-2

User A User B

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How amateur-radio operators will use OUFTI-2 (2)

D-STAR Zone

OUFTI-2

User B

D-STAR Zone ULg

User Ain antenna footprint

Satellite Ext.Internet

VHF C

UHF B

Controller

Gateway G

1.2 GHz A

D-STAR Repeater

VHF C

UHF B

Controller

Gateway G

D-STAR Repeater ULg

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Complete OUFTI-2 system: space & ground segments

CONTROL SEGMENT D-STAR SEGMENT

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Space segment

OUFTI-2: CAD model

VHF antenna (truncated)

MECH (ant. deployment)

UHF antenna (truncated)

Base plate

Chassis Solar panels

Cover plate

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OUFTI-2: CAD model

BCN & IMU payload

EPS

RAD payload

OBC

Batteries

AX.25 & D-STAR payload

ADCS (hysteretic rods)ADCS (permanent magnet)

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OUFTI-2: hardware architecture

Radio linkPower linkData link

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Let’s take a photo tour of

OUFTI-2CubeSat !

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On-board computer (OBC): OBC1 & OBC2

OBC 2 OBC 1

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Communication (COM): AX.25, D-STAR, RF-IN, RF-OUT

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Communication (COM): BCN

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Batteries

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Structure (STRU) & solar panels

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Mechanical systems (MECH): antennas deployment system

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First secondary payload: RAD

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OUFTI-2: construction statusSUBSYSTEMS STATUS

EPS Design on going

OBC (OBC1 & OBC2) To be produced

COM: AX.25 To be produced

COM: D-STAR (primary payload) Designed and tested

COM: BCN Designed and tested

COM: RF-IN To be produced

COM: RF-OUT To be produced

Solar panels Delivered

Batteries Delivered

RAD (secondary payload 1) Designed. Tests on going

IMU (secondary payload 2) Design on going

MECH To be produced

STRU Delivered

ADCS Delivered

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Ground segment

CONTROL SEGMENT D-STAR SEGMENT

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Ground segment: hardware architecture

Polarization

switch

Polarization

switch

Pre-

amplifierRooftop

Control roomSplitter Amplifier

Combiner

IC-910H

(BCN )

IC-9100

(D-STAR )

IC-910H

(AX.25)

IC-910H

(D-STAR

extension )

Rotor

controller

Rotor

remote

controller

BCN computer:

- BCN decoding

-Rotor control/satellite

tracking with Orbitron

-Frequency control of

IC-910H & IC-9100

AX.25 computer:

- AX.25 decoding /

encoding through TNC

TNC

VHF C

UHF B

Controller

Gateway G

D-STARsegment

Controlsegment

Internet

D-STARterrestrial repeater

Satellite trackingantenna

D-STAR repeater ULg

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Ground segment: construction status

Polarization

switch

Polarization

switch

Pre-

amplifierRooftop

Control roomSplitter Amplifier

Combiner

IC-910H

(BCN )

IC-9100

(D-STAR )

IC-910H

(AX.25)

IC-910H

(D-STAR

extension )

Rotor

controller

Rotor

remote

controller

BCN computer:

- BCN decoding

-Rotor control/satellite

tracking with Orbitron

-Frequency control of

IC-910H & IC-9100

AX.25 computer:

- AX.25 decoding /

encoding through TNC

TNC

VHF C

UHF B

Controller

Gateway G

D-STARsegment

Controlsegment

Internet

D-STARterrestrial repeater

Satellite trackingantenna

D-STAR repeater ULg

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Let’s take a photo tour of

OUFTI-2ground segment !

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Ground segment: control room

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Ground segment: rooftopD-STAR repeater antennaSatellite tracking antenna

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Organization &management

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Integration facility: Centre Spatial de Liège (CSL)

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Timeline & milestones

2016 sept nov 2017 march may july sept nov 2018

New architecture of OUFTI-2 settled31/08/2016

Subsystems tested12/05/2017

Kick-off meeting

21/09/2016

Critical design review01/12/2016

End of environmental test campaign13/10/2017

Flight model integration & FFT01/09/2017

Engineering model integration & FFT07/07/2017

Today

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Project management & work distribution

OUFTI-2 project

management

COMM

BCN

EPS

IMU

THER

VIB

MECH

RAD

OBC

(HW)

OBC

(SW)

ULg - CSL

HEPL

SPC

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Major no-compliances with FYS Design Specification v2.0

None.However, question about ISS compliance of batteries

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Why “Fly Your Satellite! 2017” is important to us

• Continuation of excellent & fruitful interaction with ESA Education Office started with 1st FYS program and OUFTI-1

• Excellent opportunity to provide hands-on education & training to studentsat University of Liège & other institutions of higher learning in Liège area

• Access to • expertise of experts at ESA• test facilities at ESA (ESTEC & REDU)• launch opportunities• help in critical situations (frequencies coordination,…)

• Students & supervisors thoroughly enjoyed the first FYS program, and the new team wishes to repeat the experience!

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Thank youfor your attention!

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