Jaeyoung Lim

Introduction to Cubesats

Introduction• Introduction to Satellites• CubeSATs?

o Why Cubesats?o C.O.T.S.

• How fast is the pace?• By Whom?

• Interplanetary spacetravel

SatellitesSatellite is an artificial object which has been intentionally placed into orbit

-Wikipedia

Should be able to stay in Orbit and with stand the Space Environment for various purposes

FunctionsCommunications Remote Sensing

Science Navigation

EnvironmentsExtreme Heat Radiation Vacuum

Launch Vehicle Vibration

CubeSAT=큐브위성

1kg~3kg의무게

10cmX10cmX10cm크기초소형인공위성을CubeSAT이라고부른다.기존인공위성:대형위성 ~5t소형위성~500kg개발및운영비연간 7000억원이상

CubeSAT• 개발기간및비용이기존대형위성에비해

저렴하다.• 국가이외에우주에서위성을운용해야할

필요성이있다. 위성의보다더융통성있는용도

• 기업, 학교, 개인이자유롭게우주를탐사하고위성을운용할수있도록하기위한기술

기존인공위성발사절차

CubeSAT 발사절차

Why CubeSATs?

• P-pod을이용하여인공위성규격화• 다른인공위성과같이발사되는 Piggy

Back

• 궤도를결정하지않는다. • 저궤도(LEO)에서 운용• 한꺼번에수십대의큐브위성발사가능

• 규격을만족한다면발사체회사와추가작업을요하지않음

• 무게~수t or ~수백kg• 임무에따라다양한형태, 무게, 기능• 다양한궤도로의발사및정확한궤도로발사

• 발사체회사와인공위성개발회사간의긴밀한작업을요함

Why CubeSATs?

Consumer Off The Shelf

-상용제품을사용함으로써제작비용의절감가능-보다융통성있고다양한미션을가능하게함

-기존의인공위성은개발비용이비싸기때문에우주환경에서의수명을연장하기위해서Space QualifiedMilitary Specification 의값비싼우주제품사용

CubeSAT: 임무기간이짧고고성능부품을사용하지않기때문에상용제품사용가능

SpikeCOTS for high tech applications

SwissCube

Small PowerLight WeightLow Cost

시스템개요Reaction wheels

UHF Tx

VHF RxDiplexerCoupler

SolarArray

Battery

ElectronicPowerSystem

IMU

GPS

Magnetometer

ScienceSensor(VKI)

Camera

ADCS board

WDE

Sun sensor

Interface board

OBC Magnetorquer

FDIRLogic

자세제어(ADCS)

전력(EPS)

Payload

통신

비행컴퓨터

SNUSAT -1

How fast is the pace?

Change in the role of Cubesats

CubeSAT Examples

NASA의 PhoneSATHTC NexusSamsung Galaxy

를온보드컴퓨터로사용하여큐브셋제작

송호준

미디어아티스트, 세계최초의개인인공위성발사시도 13.4.19.

Cubesat deployment from ISS

Faster Better Cheaper

NASAHas adopted the Faster Better Cheaper philosophy

?

SmallerInterplanetary Cubesats with Thrusters

감사합니다