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| | | | | | | | | Herschel operating at the second Lagrange point (L2) | |
Libration point orbits
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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