Webb Update

Jason Kalirai, jkalirai@stsci.edu

Webb’s Science Instruments Begin Integration and Testing

The summer of 2012 saw the Webb program achieve several major milestones.  Among the highlights was the delivery of two of the four science instruments from international partners to NASA’s Goddard Space Flight Center (NASA/GSFC).  The delivery of these instruments marks an important transition from the development phase to the integration and testing phase.  In the next step, the instruments will be attached to the Integrated Science Instrument Module (ISIM) at NASA/GSFC.

On May 29, 2012, NASA took delivery of the Mid-Infrared Instrument (MIRI), which was developed by a consortium of European countries in partnership with the Jet Propulsion Laboratory (JPL).  MIRI will provide astronomy’s first high-resolution view of the universe at mid-infrared wavelengths (5–28.8 microns).  The instrument includes an imager with a 1.23 × 1.88 arcmin field of view at 0.11 arcsec pixel scale, coronagraphic capability at four wavelengths, a low-resolution spectrometer, and an integral-field spectrograph.  Following the delivery, MIRI was checked out at NASA/GSFC and successfully passed both functional and metrology tests.