TITLE: GCN CIRCULAR NUMBER: 21664 SUBJECT: LIGO/Virgo G298048: Continued VLA monitoring at 6 GHz DATE: 17/08/23 18:25:07 GMT FROM: Alessandra Corsi at Texas Tech U. A. Corsi (TTU), M.M. Kasliwal (Caltech), D. Frail (NRAO), and N.T. Palliyaguru (TTU) report on behalf of a larger collaboration: We observed the field of SSS17a/DLT17ck (e.g., Coulter et al. LVC GCN 21529; Allam et al. LVC GCN 21530; Yang et al. LVC GCN 21531), the possible counterpart of G298048 (LVC, LVC GCN 21505) in NGC 4993, with the Karl G. Jansky VLA. The observation lasted 1 hr, centered on 2017-Aug-22.88 UT, and was conducted in C-band (approximate central frequency of 6 GHz). Our preliminary analysis does not show evidence for significant emission at the location of the optical candidate SSS17a/DLT17ck, down to a 3-sigma limit of about 20 uJy. Further observations are planned.