3_ss_lapanmicro-satellite

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LAPAN MICRO-SATELLITE

DEVELOPMENT PROGRAMME

suhermanto

[email protected]

APRSAF-11, Nov 2 - 5, 2004Canberra, Australia


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WHY MICRO SATELLITE?(BACK GROUND)

HI-TECH BASED;

EASY TECHNOLOGY TRANSFER;

ABLE TO CARRY OPERATIONAL MISSION PAYLOADOR TECHNOLOGY DEMONSTRATION;

MICRO SATELLITE DEVELOPMENT ONLY NEEDS : SIMPLE DEVELOPMENT FACILITY; SHORT TIME DEVELOPMENT PERIOD;

LOW COST;

POSSIBLE TO LAUNCH WITH PIGGY BACK;

HIGH OPPORTUNITY FOR COOPERATION;

MANY APPLICATIONS IN RESEARCH ANDOPERATIONAL BY GOVERNMENT, PRIVATE, ANDUNIVERSITIES.



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LAPAN MICRO-SATELLITE PROGRAM

DEVELOPMENT PERIOD : 6 - 7 YEARS

Devide into 2 stages

Phase-1 periods 2003-2005

Phase-2 periods 2004-2009

DEVELOPMENT OF MICRO SATELLITE

(50 - 100 KG);



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GOALS AND OBJECTIVES

GOALS Development of space segment capability

starting with acquisition of micro-satellitetechnology;

Food sustainability mission

OBJECTIVES

Mastering satellite technology; (Knowledge, hands-on experience and skillattainment on micro-satellite technologydevelopment);

remote sensing sensors for surveillance, store-and-forward communication.

Application based micro-satellite techno-logy development for food sustainability

and natural dissarter mitigation.



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CONSIDERATION OF INDONESIAN

MICRO-SATELLITE DEVELOPMENT

LAPAN CAPACITIES :

a) LAPAN EXPERIENCE IN GROUND STATIONOPERATION AND GROUND STATIONTECHNOLOGY DEVELOPMENT;

b) LAPAN EXPERIENCE IN DEVELOPMENT OFBENCH- AND ENGINEERING MODEL OF MICROSATELLITE AS A CONTINUATION OF ROCKETPAYLOAD AND CONTROL TECHNOLOGYDEVELOPMENT;

c) LAPAN ENGINEERS EXPERIENCE IN TRAININGON SATELLITE TECHNOLOGY

d) POSSIBILITY TO USE LAPAN GROUND STATIONFACILITIES TO SUPPORT THE GROUNDSEGMENT OF SATELLITE SYSTEM.

FOREIGN COOPERATION

EXPERIENCE OF FOREIGN PARTNERS



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PHASE 1 MICRO-SATELLITE ACTIVITIES

DEVELOPMENT OF LAPAN-TUBSAT SATELLITE:PROQUIREMENT OF COMPONENTS INTEGRATION

AND TEST;

PROVIDE INDONESIAN ENGINEERS WITH THESKILL TO DESIGN, CONSTRUCT, TEST, ANDOPERATE LAPAN-TUBSAT CLASS MICRO-SATELLITE;

PROVIDE INDONESIAN ENGINEERS WITH THEKNOWLEDGE UNTIL COMPONENT SUBSYSTEM.



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DEVELOPMENT SCHEDULE OF PHASE-1



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LAPAN-TUBSAT SPECIFICATIONS

DIMENSION : Length : 450 mm, Width : 450 mm,Height : 270 mm

WEIGHT : 50 kg

POWER : 4 Solar Panels, 432x243 mm, 35 Cells inSeries, Max 14watts, 5 NiH2 Batteries,12.5 V nominal voltages, 8 Ah

COMMUNICATIONS : 2 TTCs; Frequency 436,075MHz, Modulation FFSK, 1200 bps, 3.5 WRF output

DATA HANDLING : OBDH with 524 Kb external and 4

Kb internal RAM, 524 Kb EEPROM, 16Kb PROM, 38.4 Kbps SCI speed



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LAPAN-TUBSAT SPECIFICATIONS

PAYLOADS : S-band Frequency 2220 MHz, FMVideo Modulation, 5 watts RF output,Camera 1 : CCD with color splitterprism, Effective picture plement :

752x582, 1000 mm case grain lens,Swath 3.5 km, Ground Resolution 5 m(in 630 km LEO),Camera 2 : color CCD, Effective

picture element : 752x562, 50 mmlens, swath 81 km, Ground Resolution200 m (in 630 km LEO).

ATTITUDE CONTROL SYSTEM :

3 wheels fiber optic laser gyros inorthogonal axis, CMOS star sensor, 3magnetic coils in orthogonal axis,Coarse sun sensor (solar cells) at 6

sides



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TIME SCHEDULE OF PHASE 1



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ILLUSTRATION OF THE LAPAN-TUBSAT ORBIT

Polar, 630 KM, Swath Width/Ground Resolution : 3.5 km/5 m and 81 km/200 m



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TT&C and DATA RECEPTION SUB-SYSTEM

Kendali AntenaAutotrack

PengendaliSatelit

Frame grabberVideo Monitor

LNA

TX/RX CT-17

MODEM

UHF

Kendali rotatorantena EL/AZ

PengendaliProgramtrack

COM1

COM2

COM3

Digitizing pad

X-bandSynth. DC

Tower

MODIS/OCMDemodulator

Server

Monitor

Keyboard

Mouse

Modis Ingestion,L0 Processing

Modis L2 Processing(Produksi data & informasi)

S band analogreceiver

LNB

S-band DownlinkX-band Downlink

Antena Dual X-/S band, diameter4,5 mRadomeberdiameter 5.5mAutotrackdanprogramtrack

S and X band data reception block diagram(Analog and Digital)

TT&C Sub-system block diagram(UHF)



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MICRO-SATELLITE GROUND STATION



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National Institute of Aeronautics and Space - LAPAN

MICRO-SATELLITE DEVELOPMENT44cm x 44cm x 25cm

Phase-1 Micro-Satellite DevelopmentObjective(2003-2005)

Knowledge, hands-on experience and skill

attainment on development, integration,testing, launch and operation of LAPAN-TUBSAT micro-satellite.

LAPAN-TUBSAT technology demonstration micro-satellite is jointly developed by LAPAN andTechnical University Berlin (TU Berlin) based onexisting and proven DLR-TUBSAT, launched on

May 26, 1999; LAPAN-TUBSAT micro-satellitewith 3-axis attitude control.


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Activities and Schedulle

Mission payloads are (i) high-resolution remotesensing cameras for f=1000 mm and f=50 mm colorobservation, (ii) store-and-forward data communicationbetween remote areas and (iii) interactive 3-axis

attitude control.

Schedule :2003 : procurement of equipment and sub-systems;2004 : Integration of micro-satellite;2005 : Test of micro-satellite and ready for launch.

LAPAN-TUBSAT will be launch on Oct.2005 By ISRO-India Rocket

batteries, electronic, and TT&C.

Sensors and three axis control


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Phase-2 Micro-Satellite Development (2004-2009)

Strengthen capacity in development of application based micro-satellite technology;

Optimize use of existing capability in micro-satellite development;

Extended distribution of advanced knowledge, skill and experience

in micro-satellite integration, test, operation and application atrelevant industries, research agencies and universities;

Promote public, private and education awareness and programs inspace science, technology and application.

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