TITLE: GCN CIRCULAR NUMBER: 14998 SUBJECT: GRB 130702A: P200 Spectroscopic Confirmation of Associated Supernova DATE: 13/07/10 00:28:32 GMT FROM: S. Bradley Cenko at Caltech S. B. Cenko (NASA/GSFC), A. Gal-Yam (Weizmann Institute), M. M. Kasliwal (OCIW), D. Stern (JPL), K. Markey, E. Alduena, A. Alduena, and S. Kuo (Walden) report on behalf of a larger collaboration: We have obtained further spectroscopy of the optical afterglow (Singer et al., GCN 14967) of the Fermi-GBM (Collazzi et al., GCN 14972), Fermi-LAT (Cheung et al., GCN 14971), and IPN (Hurley et al., GCN 14974) GRB 130702A. Observations were obtained with the Double Spectrograph mounted on the 5 m Palomar Hale telescope beginning at 5:27 UT on 2013 July 8 (6.2 days after the Fermi GBM trigger) and cover the wavelength range from 3400-8900 A. Compared with our previous optical spectra (Mulchaey et al., GCN 14985), the source shows a significantly redder continuum. Similar to Schulze et al. (GCN 14994), a number of broad features are detected that are reminiscent of canonical GRB-associated supernovae such as SN 2006aj and SN 1998bw. A plot of our most recent spectrum, alongside comparable epochs from SN 2006aj (Modjaz et al., ApJL, 2006, 645, 21) and SN 1998bw (Patat et al., ApJ, 2001, 555, 900), both retrieved from the Weizmann Interactive Supernova Data Repository (WISEREP; http://www.weizmann.ac.il/astrophysics/wiserep/) is available here: http://astro.berkeley.edu/~cenko/public/grb/GRB130702A/GRB130702A_20130708.png