During Servicing Mission SM3B, the FOC will be replaced by the Advanced
Camera for Surveys (ACS). COSTAR will remain in place until SM4 when it will
be removed to make way for the Cosmic Origins Spectrograph (COS).

Raoul Lannoy wrote:

> Hello,
> I'd like to know if the COSTAR wil be removed from the HST as well, during
> the next mission. It seems not to be of any use anymore if the ACS has the
> right kind of mirror to compensate for the main mirror flaw.
> Regards
> Raoul Lannoy
> Nerviersstraat 19
> 2018 Antwerpen, Belgium
> Tel: 32.3.288.55.67 GSM:0486.89.24.61
> 51d12m22sN-4d25m14sE
> http://users.pandora.be/raoul.lannoy/index.htm
> http://www.geocities.com/astroraoul/index.html

--
Tammy Eskin
Project Manager
HST Project Web Sites
http://hubble.nasa.gov
http://sm3b.gsfc.nasa.gov