ESA Picasso CubeSat

Networking Friday Thematic Special Session on Nanosatellites with Roger Walker (ESA), Ernest Teye Matey (ANU), Milton Kampel (INPE) and Stewart Bernard (SANSA)

On January 29th, 2021, 1-3 PM UTC, we held our first Thematic Special Session of the year, which focused on nanosatellites. The speakers were be Roger Walker (ESA – European Space Agency), Ernest Teye Matey (ANU – All Nations University, Ghana), Milton Kampel (INPE – Brazilian National Institute for Space Research) and Stewart Bernard (SANSA – South African National Space Agency). André Oliveira (CoLab +Atlantic, Portugal) was the moderator.


  • Welcome address / introductions: André Oliveira (moderator)
  • Roger Walker – ESA Technology CubeSat nanosatellite activities
  • Milton Kampel – Satellites and Small Satellites at INPE, Brazil
  • Stewart Bernard – SANSA: The emerging role of nanosatellites in developing South African space  infrastructure
  • Ernest Teye Matey – The African Constellation Satellite Project (AFCONSAT)
  • Q&A
  • Closing remarks


Roger Walker

Roger Walker

ESA Technology CubeSat nanosatellite activities

Roger Walker is the Head of the CubeSat Systems Unit, Projects Office, Systems Department, Directorate of Technology, Engineering & Quality at the European Space Agency (ESA). he is a Team leader with over 10 years of experience at ESA in CubeSat nano-satellite activities and responsible for planning, setup and implementation of CubeSats/nano-satellite projects for technology in-orbit demonstration funded in the ESA General Support Technology Programme (currently 10 different projects ongoing with two missions successfully flown). Roger coordinates with other ESA programmes, European industry & research institutions on CubeSat-related activities and he is the Team leader for small satellite mission assessment studies in the ESA Concurrent Design Facility (e.g. low Earth orbit constellations, close proximity operations, beyond LEO missions). Roger is also Technical Chair of the CubeSat Workshop at the Small Satellite Systems & Services (4S) Symposium, and organiser of the ESA CubeSat Industry Days.

Link of interest:

Milton Kampel

Milton Kampel

Satellites and Small Satellites at INPE, Brazil

The presentation will share information about the development of an ecosystem of small satellites in Brazil, presenting a brief history, future perspectives and the infrastructure facilities available through the Brazilian National Institute for Space Research (INPE).

Milton Kampel holds a degree in Oceanography from Rio de Janeiro State University (1988), a Master’s degree in Remote Sensing from the National Institute for Space Research – INPE (1993), a PhD in Oceanography (Biological Oceanography) from the University of São Paulo (2003) and a Postdoctoral at the Bedford Institute of Oceanography, Canada (2005). He is currently Senior Researcher at INPE, Head of the multiuser Monitoring Oceans from Space Lab (MOceanS), acting in the Coordination of Earth Observation. He is a lecturer at the Post-Graduate Program in Remote Sensing at INPE (CAPES 7), responsible for the disciplines of Introduction to Remote Sensing and Remote Sensing of Climate and adviser of master’s and doctoral students.

He was Head of the Remote Sensing Division and Earth Observation Coordinator Deputy (2008-2013). He was a Member of the Municipal Council for the Environment of São José dos Campos (2004-2010) and the Municipal Council for Preservation of the Historical, Artistic, Landscape and Cultural Heritage of São José dos Campos (2004-2008), Director of the São Paulo Branch of the Brazilian Association of Oceanography (2009-2016). Awarded with the Honor of Cartographic Merit in the degree of ‘Officer’ by the Brazilian Society of Cartography (2010). Develops applications of remote sensing and geotechnologies in Oceanography and Environment, mainly in the following subjects: Water/Ocean color, Monitoring of marine ecosystems, Monitoring of inland, coastal and oceanic aquatic systems, Primary productivity, Phytoplankton biomass, Surface temperature and wind field analysis, Study of mangroves and coral reefs, Estimation of offshore wind energy, among others.

Links of Interest

Stewart Bernard

Stewart Bernard

SANSA: The emerging role of nanosatellites in developing South African space  infrastructure

The presentation will outline the South African Space Infrastructure Hub, examining the emerging structure and aims of this new programme. The potential context and value of nanosatellites will be discussed from an upstream and downstream perspective. Existing and planned South African nanosatellite public/private missions and industry capabilities will be briefly presented. Establishing appropriate hierarchies of programme, system and user requirements is a critical step to the effective development of national and collaborative nanosatellite constellations. Finally some discussion is initiated on the move away from image-based nanosatellite missions and towards multi- and hyper-spectral radiometric missions with more demanding technical and scientific requirements.

Stewart Bernard holds a PhD in bio-optics and a MSc in Physical Oceanography from the University of Cape Town, South Africa, and a BSc Hons in Oceanography with Physics from the University of Southampton, United Kingdom. His key competencies are in the field of ocean colour, specifically in the bio-optical modelling and characterisation of phytoplankton and the development of new ocean colour methods to observe the phytoplankton community. He has also led the development of new regional capabilities for marine operational services for aquaculture, fisheries and water quality monitoring. He has played a strong role in international community building and was chair of the International Ocean Colour Co-ordinating Group from 2014 – 2017. Dr. Stewart Bernard was principal researcher at the Council for Scientific and Industrial Research (CSIR) until August 2020. He is currently Chief Scientist at the South African National Space Agency (SANSA), lead of the GMES and Africa MarCoSouth Consortium and Chief Scientific Officer of the AIR Centre.

Ernest Teye Matey

Ernest Teye Matey

The African Constellation Satellite Project (AFCONSAT)

The presentation will capture how the GhanaSat-1 achievement has evolved into a constellation satellite project between 7 countries in Africa.

Ernest Teye Matey is part of the trio that built and launched Ghana’s first satellite, GhanaSat-1 and the outreach manager of the All Nations University – Space Systems Technology Laboratory (ANU-SSTL) which developed the Satellite. He is also the Site Manager for the NASA Aerosol Robotic Network ( AERONET) located in Koforidua, Ghana. Currently, He is the National Point of Contact to Ghana for the Space Generation Advisory Council (SGAC) in support of the United Nations Program for Space Applications. He is a facilitator for the African Constellation Satellite Project ( AFCONSAT).

Relevant link:

All Nations University Space Systems Technology Laboratory (ANU-SSTL):


André Oliveira

André Oliveira

André Oliveira has a degree in Aerospace Engineering from IST in Portugal, a postgraduate certificate on Space Systems analysis and design from the International Space University (ISU) and a postgraduate certificate on business leadership from IMD in Lausanne. He began his career at ESA where he spent 2 years working on smart structures and multi-body dynamics. André then spent 14 years at the TEKEVER group where he was responsible for all R&D activities in the domains of Aerospace, Defence and Security with a focus on small satellites, drones and mission systems. He has a strong background in R&D and collaborative research having played a significant role in over 30 R&D projects, on various subjects. He’s been subject matter expert at EUROCAE, RTCA and NATO since 2011, and has supported the EC during the last two Framework Programmes in the Space theme. In 2019, André joined the +ATLANTIC Collaborative Laboratory where he is currently setting and implementing its agenda on the integration of space technologies with numerical modelling and in-situ observations for ocean applications.

We will continue with the Networking Fridays during the next months. More information about future sessions as well as presentations and videos from previous sessions can be found here. Twitter Hashtag: #netfridays. Expect some very exciting afternoons, or mornings or evenings, depending on where you are…

If you need any additional information please send an email to Jose Luiz Moutinho.