You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
SIM, a micro-arcsecond astrometry space mission, has been impacted by significant changes in NASA priorities over the
last two years, resulting in the mission being indefinitely delayed. The project team has responded by investigating
alternative mission concepts based upon completed SIM technology. Several alternative mission concepts have been
identified, ranging from a planets-only concept, to versions of SIM, called SIM-Lite, that still address the full breadth of
science envisioned by two previous National Academy Astrophysics Decadal Surveys but with lower precision and
reduced throughput. These mission concepts are significantly more affordable and may fit into a nearer-term future
scenario than the full SIM PlanetQuest17 would. This paper describes the current state of the project, including its design
and technology, and the alternative mission concepts for the use of these designs and technology.
The alert did not successfully save. Please try again later.
James C. Marr-IV, Michael Shao, Renaud Goullioud, "SIM-Lite: progress report," Proc. SPIE 7013, Optical and Infrared Interferometry, 70132M (28 July 2008); https://doi.org/10.1117/12.790273