Pléiades follow-on very high resolution optical Earth observation system preparation activities : OTOS program overview

Paper number

IAC-14,B1,2,8,x22320

Author

Mr. Lionel PERRET, CNES, France

Coauthor

Mr. Vincent COSTES, CNES, France

Coauthor

Mr. David LAUBIER, CNES, France

Coauthor

Mr. Jean-Pierre MILLERIOUX, CNES, France

Coauthor

Mr. Yann MICHEL, CNES, France

Coauthor

Mr. Alex MATERNE, CNES, France

Coauthor

Mr. Roberto CAMARERO, CNES, France

Coauthor

Mr. Mathieu ALBINET, CNES, France

Year

2014

Abstract

After the successful launch of the two Pléiades satellites in 2011 and 2012, France, under the leadership of the French Space Agency (CNES), is now preparing the future generation of very high resolution optical Earth observation systems.
Within the frame of a demonstrator program, named OTOS, many new technological developments will be raised to a higher TRL level, typically 5 to 6. The aim is to prepare the next generation of very compact and low cost satellites, suitable for small launchers, and able to deliver daily a large quantity of very high resolution images (more than 700 000 km2 of 0.3 m nadir resolution data per day). Those satellites could be ready for launch around the year 2020.


The OTOS demonstration program is focusing on various complementary domains:
\begin{itemize}\ - Next generation space telescopes using adaptive optics, allowing a ultra-light big diameter primary mirror and very compact optical design, \end{itemize}
 \begin{itemize}\ - 2 Gbps X band telemetry chains including VCM (Variable Coding Modulation) modulators and new antenna pointing mechanisms, \end{itemize} 
 \begin{itemize}\ - new very high efficiency CCD sensors, \end{itemize}
 \begin{itemize}\ - new multispectral CMOS sensors,\end{itemize}
 \begin{itemize}\ - new compressor/memory chains including increased efficiency quality driven compression algorithms.\end{itemize}
This paper will give an overview of these technological demonstrators and their status of achievement and validation.

Abstract document

IAC-14,B1,2,8,x22320.brief.pdf

Manuscript document

(absent)