ESA - ESA Spacecraft Operations - Libration point orbits

Libration point orbits


Herschel operating at the second Lagrange point (L2)

3 April 2009

ESA's Herschel and Planck missions will fly on orbits around the libration point L2 in the Sun-Earth system. Future astronomy missions such as GAIA and JWST will also use this type of orbit. This forum will provide a comprehensive introduction to the basic mechanics of libration point orbits.

The presentation will cover:

Why do astronomy missions go to L2?
Short introduction to Herschel, Planck and GAIA mission objectives and spacecraft
From linear theory to numerical orbit construction
Stable manifold and weak stability boundary
The "freely reachable" orbits (Herschel, JWST)
Transfer optimisation to Lissajous orbits (Planck, GAIA)
More complex transfers (lunar flybys, apogee raising sequence - LISA pathfinder to L1)
Launch windows
Orbit instability, maintenance, navigation

Presenter(s)

M. Hechler - OPS-GFA

Download presentation file

Click here to download presentation file (PPT)

Location, date, time

Friday, 3 April 2009, 11:00 hrs, ESOC, H-I

Access from other ESA Establishments

If you wish to attend via videocon, please send an email to Marita Roth.

Registration required for non-ESOC badge holders

Interested persons from outside ESOC are welcome to request registration. Please contact:

(Ms) Marita Roth Tel. +49.6151.90.2107

European Space Agency Fax +49.6151.90.3412

ESA/ESOC - OPS-G marita.roth [at] esa.int

Robert-Bosch-Str. 5

D-64293 Darmstadt

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Last update: 3 April 2009


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