WFC3 Instrument Handbook for Cycle 24 . ... Wide Field Camera 3 Instrument Handbook for Cycle 24 > Appendix C: Dithering and Mosaicking > C.2 WFC3 Patterns . C.2 WFC3 Patterns . ... WFC3 dither patterns designed to subsample pixels can optionally be selected as secondary patterns when WFC3 patterns with larger steps are selected as primary patterns. ... WFC3 UVIS Patterns . ... Table C.3: Steps in arcsec in the POS TARG frame and in detector pixels for the WFC3 convenience patterns. ... 0.000 . ...