ESA title
Enabling & Support

Libration point orbits

4179 views 2 likes
ESA / Enabling & Support / Operations
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

OPS-G Forum mail list

Enter your email address and name (optional) into the form below and click on "Subscribe." You will receive push-mail notices of upcoming OPS-G Forum events and when presentation archives have been updated.

Email address:
(optional) Your name: