Multimission platform and Brazilian EO satellites

Gilberto CâmaraINPEhttp://www.dpi.inpe.br/gilberto

The need for global land observation

The world is changing rapidly Climate Change is here to stay

Global land observation is a crucial need for the world, but its future is uncertain MODIS is very useful,but has no future What will happen to LANDSAT?

Global land observation systems are a public good

The need for fast monitoring of change Protecting the Amazonian rain forest

Annual wall-to-wall detailed survey Uses LANDSAT-class satellites

Daily monitoring of new deforestations Uses MODIS-class satellites

Altamira (Pará) – LANDSAT Image – 22 August 2003

Altamira (Pará) – MODIS Image – 07 May 2004

Imagem Modis de 2004-05-21, com excesso de nuvens

Altamira (Pará) – MODIS Image – 21 May 2004

Altamira (Pará) – MODIS Image – 07 June 2004

6.000 hectares deforested in one month!

Altamira (Pará) – MODIS Image – 22 June 2004

Altamira (Pará) – LANDSAT Image – 07 July 2004

Go to the field....

...and get the bad guys!

Cumaru do Norte (PA)Desmatamento 2005-2006Desmatamento 2004-2005

FlorestaDesmatamento anterior

Rationale for Brasil’s SSR-1 satellite

Brazil needs satellites with fast revisit for real time deforestation detection

We currently use MODIS (daily revisit) but need a better spatial resolution

The AWFI (advanced wide field imager) sensor in CBERS-3 has 60 meter resolution every 5 days

SSR-1 will have a AWFI with 40 meter resolution every 5 days

With the AWFIs of CBERS-3 and SSR-1, we will cover Amazônia every 2 days

Meeting Brazil’s needs for remote sensing

1

10

100

1 10 100 1000Resolution (days)

Revi

sit

(m

etre

s)

WFI CB2

CCD CB2/CB3

AWFI CB3

PAN CB3

Tecnology 2008

Tecnology 2015

Tecnology 2000

50

50

5

Agriculturemapping

Deforestationmapping

Deforestationdetection

Agricultureidentification

5

AWFI CB3 +AWFI SSR1

2006 2007 2008 2009 2010 2011 2012 2013

LANDSAT-5 1984

LANDSAT-8 2012

MODIS 2001

US satellites used for Amazon deforestation monitoring

LANDSAT/5 – 30 metre resolution every 16 daysMODIS – 250 metre resolution every day

Brazilian remote sensing satellites

Launch 2004 2005 2006 2007 2008 2009 2010 2011 2012

CBERS-2 2003

CBERS-2B 2007

CBERS-3 2009

CBERS-4 2012

SSR-1 2009

SSR-2 2012

Meeting Brazil’s needs for remote sensing Today - We monitor Amazônia with 250

meters resolution every day

In 2009, Brazil will have the capacity to monitor Amazonia and the entire Earth with 50 meters resolution every 2 days

Multimission platform

Brazil’s project of medium-sized satellites

MMP: General purpose bus

Earth observation missions polar or near–equatorial orbit 600 to 1200 km height up to ~300 kg payload weight 175 W average / 900 W peak power compatibility with launchers in the 500 –

600 kg payload class

Attitude control performance

Pointing precision: < 0.05º (3σ) Drift: < 0.001º/s Attitude determination: < 0.005º (3σ) Lateral pointing agility: 30º in 180 s

Payload envelope

Possible payloads

Optical (CBERS heritage) Wide-field imager Medium resolution camera

Radar Lightweight SAR

Scientific GPM sensors

Optical payload (SSR-1)

SSR-1 optical payload

AWFI

Spectral bands (m)

0,45-0,52 B0,52-0,59 G0,63-0,69 R0,77-0,89 NIR

Spatial resolution (m) 40Swath (km) 800Revisit period (days) 5

SAR payload (SSR-2)

antenna reflector

MMP

SAR payload

antenna feed horn

solar panel

subreflector, data downlink

SSR-2 SAR payload

ParametersFrequency L bandPolarization single, dual and quad polarizationIncidence interval 20° – 45°Spatial resolution 3 – 20 mSwath 20 – 55 km Orbit sun-synchronousCoverage globalLook direction ascending/descending and left/rightRevisit period weeklyAccess to data near real timeAdd. requirements Interferometry and stereoscopy