ditherpattern
Schematic diagram of the 7 central fibers within a hexagonally packed MaNGA IFU, showing the 120 micron diameter fiber core and surrounding cladding plus buffer. The triangular figure shows the relative positions of the three dither positions; the fiber bundle is located at position “S.” The central (C) “home” position
is labeled, along with the north (N), south (S), and east (E) dither positions. The nominal plate scale of the SDSS telescope is 217.7358 mm degree−1, or 60.48 microns arcsec−1