TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5259 SUBJECT: GRB 060614, SMARTS optical/IR afterglow observation DATE: 06/06/15 15:51:23 GMT FROM: Bethany Cobb at Yale U B. E. Cobb (Yale), part of the larger SMARTS consortium, reports: Using the ANDICAM instrument on the 1.3m telescope at CTIO, we obtained optical/IR imaging of the error region of GRB 060614 (GCN 5252, Parsons et al.) with a mid-exposure time of 2006-06-15 04:16 UT (~15.5 hours post-burst). Total summed exposure times for each observation amounted to 36 minutes in I and 30 minutes in J. The afterglow of GRB 060614 (GCN 5255, Holland et al.) is visible in each combine image. The preliminary magnitudes reported below were calibrated using several USNO-B1.0 stars in the I-band and three 2MASS standards in J. time post-burst I magnitude J magnitude ------------------------------------------------------ 15.5 hours 18.9 +/- 0.1 18.2 +/- 0.1 Given that the afterglow was also reported to have an R magnitude of ~19 at approximately 5.8 and 7.1 hours post-burst (GCN 5258, Schmidt et al. & GCN 5257, French et al.), it is clear that the behavior of this afterglow continues to deviate from a typical smoothly decaying power-law.