GCN Circular 6236
B. E. Cobb, 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 070330 (Grupe et al. GCN 6232) with a mid-exposure time of ~7.6 hours post-burst (2007-03-31 06:25 UT). Total summed exposure times amounted to 36 minutes in I and 30 minutes in J. No source is detected at the position of the X-ray afterglow (Grupe et al. GCN 6234) to approximate limiting magnitudes of I > 20.5 and J > 18.6. Magnitudes are calibrated using USNO-B1.0 values for I, and 2MASS values for J.