obtain a redshift to that galaxy, given its estimated photometric redshift. Primary objects for a mask are those expected to yield a redshift within a factor of two of the intended mask integration time. The time estimates were compared with previous observations to verify their accuracy. As described in §4.2, we use a flagging scheme to keep track of objects for which a redshift was expected but not obtained. These sources can then be prioritized for additional observations.

[lllcl]{} 2015 Dec 15 & N01-D & DEIMOS & 4 & clear, 065 seeing\
2016 Feb 28 & N02-M & MOSFIRE & 6 & clear, 05-065 seeing\
2016 Feb 29 & N03-D & DEIMOS & 4 & clear, 065 seeing; moon\
2016 Mar 01 & N04-D & DEIMOS & 7 & clear, 10 seeing; moon\
2016 Apr 09 & N05-L & LRIS & 4 & thin cirrus, 097 seeing \[table:obsevations\]

Observations and Data Reductions
================================

Five nights were allocated by Caltech in the 2016A semester: three nights on DEIMOS [@Faber03], and one night each with LRIS [@Oke95] and MOSFIRE [@McLean12]. Tables 1 and 2 summarize the nights and observed slitmasks. All five nights had excellent observing conditions. Here we describe the observations 