ISAAC - Infrared Spectrometer And Array Camera

ISAAC has been removed from UT3 to allow the installation of SPHERE. The last data were taken on 12th December 2013.


ISAACISAAC is an IR (1 - 5 μm) imager and spectrograph that lies at the Nasmyth A focus of UT3. It has two arms, one equipped with a 1024 x 1024 Hawaii Rockwell array, and the other with a 1024 x1024 InSb Aladdin array from Santa Barbara Research Center. The Hawaiiarm is used at short wavelengths (1 - 2.5 μm). Prior to P70, theAladdin arm was used exclusively at long wavelengths (3- 5 μm). From P70 onwards this arm is also offered for JHK imaging.

Publications based on data obtained with the ISAAC instrument should quote the following reference paper: Moorwood, A. et al. 1998, The Messenger 94, 7.

Contact Information

  • Questions related to service mode observations and proposal preparation should be addressed to the User Support Department.
  • Questions related to visitor mode observations should be addressed to Paranal Science Operations
  • Please send us your comments, suggestions and report errors and inaccurate statements in the web pages and manuals.

Content of these pages

The following items are available on all the ISAAC pages, using the bar on the left.