; OSIRIS: The OH-Suppressing Infrared Imaging Spectrograph is a near-infrared spectrograph for use with the Keck II adaptive optics system.

Satellite measurements made in 1999 with the Wide Field Infrared Explorer showed that the brightness of Altair fluctuates slightly, varying by less than a thousandth of a magnitude.

# REDIRECT Near Field Infrared Experiment

The Near Field Infrared Experiment ( NFIRE ) is a satellite which was proposed and developed by the Missile Defense Agency, a division of the United States Department of Defense.

de: Near Field Infrared Experiment

* Near Field Infrared Experiment ( NFIRE )

There are two related projects: the Wide Field Camera ( WFCAM ) on the United Kingdom Infrared Telescope in Hawaii carries out infrared surveys of the northern sky, and the VLT Survey Telescope in Chile carries out surveys of the southern sky in visible light.

* Wide Field Infrared Explorer ( WIRE ), a spacecraft intended to produce an infrared survey of the entire sky

; Multi-Object Infrared Camera and Spectrograph ( MOIRCS ): Wide-field camera and spectrograph with the ability to take spectra of multiple objects simultaneously, mounts on the Cassegrain focus.

; Infrared Camera and Spectrograph ( IRCS ): Used in conjunction with the new 188-element adaptive optics unit ( AO188 ), mounted at the infrared Nasmyth focus.

; Fiber Multi Object Spectrograph ( FMOS ): Infrared spectrograph using movable fiber optics to take spectra of up to 400 objects simultaneously.

For example, the James Webb Space Telescope is, as its name indicates, a telescope, but it includes a suite of four distinct scientific instruments: Mid Infrared Instrument ( MIRI ); Near Infrared Camera ( NIRCam ); Near Infrared Spectrograph ( NIRSpec ); Fine Guidance Sensor Tunable Filter Imager ( FGS-TFI ).

Ball Aerospace developed the Cryogenic Telescope Assembly ( CTA ) and two of the three science instruments: the Infrared Spectrograph ( IRS ) and the Multiband Imaging Photometer ( MIPS ).

The two older instruments being replaced were the Goddard High Resolution Spectrograph and the Faint Object Spectrograph, exchanged for the Space Telescope Imaging Spectrograph ( STIS ) and the Near Infrared Camera and Multi-Object Spectrometer ( NICMOS ), respectively.

Lee and Smith removed two scientific instruments from Hubble, the Goddard High Resolution Spectrograph ( GHRS ) and Faint Object Spectrograph ( FOS ), and replaced them with the Space Telescope Imaging Spectrograph ( STIS ) and Near Infrared Camera and Multi-Object Spectrometer ( NICMOS ), respectively.

Current observational experiments in the infrared include NICMOS, the Cosmic Origins Spectrograph, the Spitzer Space Telescope, the Keck Interferometer, the Stratospheric Observatory For Infrared Astronomy, and the Herschel Space Observatory.

While the WFPC2 took very deep optical images, nearby fields were simultaneously imaged by the Space Telescope Imaging Spectrograph ( STIS ) and the Near Infrared Camera and Multi-Object Spectrometer ( NICMOS ).

While the WFPC2 took very deep optical images, the fields were simultaneously imaged by the Space Telescope Imaging Spectrograph ( STIS ) and the Near Infrared Camera and Multi-Object Spectrometer ( NICMOS ).

Gemini North has NIFS ( Near-infrared Integral Field Spectrograph ), built by Australian National University.

For closed surfaces it is possible to use the Magnetic Field Integral Equation or the Combined Field Integral Equation, both of which result in a set of equations with improved condition number compared to the EFIE.

Atlantis carried two new instruments to the telescope, the Cosmic Origins Spectrograph and the Wide Field Camera 3.

* Instrument packages for the Hubble Telescope, including the Advanced Camera for Surveys ( ACS ), the Cosmic Origins Spectrograph ( COS ) and the Wide Field Camera 3 ( WFC3 ), all which were installed on the observatory during the Space Shuttle mission STS-125 in 2009.

During the mission, Grunsfeld performed three of the mission's five back-to-back spacewalks, which installed two new instruments to the Hubble Space Telescope: The Cosmic Origins Spectrograph, and the Wide Field Camera 3.

The 11-day STS-125 mission by Atlantis, launched on 11 May 2009, installed fresh batteries, replaced all gyroscopes, and installed the Wide Field Camera 3 and the Cosmic Origins Spectrograph.

It is equipped with a number of instruments, including the Two Degree Field facility ( 2dF ), a robotic optical fibre positioner for obtaining spectroscopy of up to 400 objects over a 2 ° field of view simultaneously ; the University College London Échelle Spectrograph ( UCLES ), a high-resolution optical spectrograph which has been used to discover many extrasolar planets ; and IRIS2, a wide-field infrared camera and spectrograph.