... The locations of the different orders relative to exposures taken through a direct imaging filter are determined, trace and wavelength solutions are derived for a central position on each chip, and the absolute throughput of the different orders is quantified. ... 13 ST-ECF Instrument Science Report WFC3-2009-01 Figure 7: Instrument efficiency of the first few orders for the WFC3/UVIS G280 grism on Chip 2 as a function of wavelength. ... The average dispersion in the +/-1st orders is ~14 е/pixel. ...

Mon. Not. R. Astron. Soc. 349, 1397­1418 (2004) doi:10.1111/j.1365-2966.2004.07619.x The 2dF QSO Redshift Survey ­ XII. The spectroscopic catalogue and luminosity function S. M. Croom,1 R. J. Smith,2 B. J. Boyle,1 T. Shanks,3 L. Miller,4 P. J. Outram3 and N. S. Loaring4,5 1 2 3 4 5 Anglo-Australian Observatory, PO Box 296, Epping, NSW 1710, Australia Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD Department of Physics, University of