![]() ![]() The SDSS’s imaging camera is now at the Smithsonian, but all the images it collected are available online. Sloan Telescope FPS unit robotic fiber positioners and fiber-illuminated fiducials. Additional information can be found on the Focal Plane System page. The robot array is surrounded by six guide/focus/acquire (GFA) cameras to provide precise acquisition, guiding, and telescope focus maintenance. A telescope-mounted fiber viewing camera system is used to ensure precise fiber positioning. 300 robots carry fibers for the BOSS and APOGEE spectrograph plus a back-illuminated metrology fiber, and 200 carry a BOSS fiber and a metrology fiber. ![]() Each FPS deploys 500 robotic fiber positioners. To meet the requirements for SDSS-V’s rapid cadence and high target densities, we are replacing the iconic SDSS fiber plug-plates on both telescopes with robotic Focal Plane Systems (FPS). Additional information can be found on the LVM-I page. In a single shot we will produce ~1,800 spectra from 3600 to 9500 Angstrom. A custom building, four 16-cm telescopes, integral-field unit, and fiber slit will feed near-clones of the R~4,000 DESI spectrograph. The Local Volume Mapper Instrument (LVM-I) will use a new facility built for the LVM Survey. Additional information can be found on the APOGEE spectrographs page. The instruments are custom-built, multi-object spectrographs that record the 1.51-1.70 micron spectrum of 300 targets simultaneously, with a spectral resolution of ~22,500. The APOGEE spectrographs are high-resolution, near-infrared spectrographs originally built for the APOGEE surveys.
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