The Herschel / Planck Programme – Technical Challenges for two Science Missions – The Spacecraft

Paper number

IAC-06-A3.1.02

Author

Mr. Jean-Jacques Juillet, Thales Alenia Space, France

Year

2006

Abstract

A.Heske, G.Crone, T.Passvogel, J.-J. Juillet , B. Collaudin, P. Rideau

Abstract:
The two science missions Herschel, an observatory-type mission, and Planck, a survey mission, are combined in one programme within ESAs long-term science programme.

Herschel, an observatory mission, will target the largely unexplored infrared and sub-millimetre part of the electromagnetic spectrum from 60 to 670 microns with three scientific instruments. 

As a survey mission, the objective for Planck is to image systematically the whole sky simultaneously with two scientific instruments in nine frequency channels between 30 and 900 GHz to unravel the temperature fluctuations, the anisotropy, of the cosmic background radiation. 

This paper will focus on the particular characteristics and design solutions adopted for each spacecraft to meet the challenging performance requirements demanded by the payload.

For both satellites, which will be launched from the European Space Port in Kourou, French Guiana, on a single Ariane 5 launcher in Spring 2008, the orbits will be Lissajous orbits around the 2nd Lagrange Point L2 of the Earth-Sun system. 

Abstract document

IAC-06-A3.1.02.pdf

Manuscript document

IAC-06-A3.1.02.pdf (🔒 authorized access only).

To get the manuscript, please contact IAF Secretariat.