TITLE: GCN GRB OBSERVATION REPORT NUMBER: 119 SUBJECT: GRB 980613 Near-IR observations DATE: 98/06/23 20:36:15 GMT FROM: Jeff Goldader at STScI J. Goldader (STScI), M. Beasley (U. Colorado), M. Hanson (Steward Observatory, U. Arizona), and P. Conti (U. Colorado) report: We imaged part of the initial 8 arcminute diameter error circle of GRB 980613 (Piro & Costa, GCN 99) at K (2.2 micron) using ONIS on the KPNO 4m telescope. Our observations covered approximately (RA=10h 18m 23.90s, DEC=+71d 28' 25") through (RA=10h 17m 29.10s, DEC=+71d 31' 25"), and also (RA=10h 17m 26.24s, DEC=+71d 28' 25") through (RA=10h 16m 54.30s, DEC=+71d 31' 25") (J2000.0), and were made between 1998 June 14.22 and 14.26 UT. No objects not present on the DSS were observed, to a limiting point-source magnitude of K=18.0 +/- 0.2 (3 sigma, estimated by spreading flux evenly over a 4x4 pixel box) in seeing of ~0.7 arcsec FWHM. The fields observed fall north of, and do not include, the positions of the fading X-ray source 1SAX J1017.9+7127 (Costa et al., IAUC 6939; Piro et al., GCN 104) and the possibly associated optical transient reported by Hjorth et al. (GCN 109). This report may be cited.