{
  "bibcode": "2000GCN...713....1K",
  "body": "S. Klose, B. Stecklum (Thueringer Landessternwarte Tautenburg),\nO. Fischer (Universitaets-Sternwarte Jena), \nJ. Greiner (AIP Potsdam),\nS. Hippler (Max-Planck-Institut fuer Astronomie, Heidelberg),\nR. Davies (Max-Planck-Institut fuer Extraterrestrische Physik, Garching),\nL. Montoya (Calar Alto observatory),\nF. J. Vrba, A. A. Henden, C. B. Luginbuhl, B. Canzian, S. E. Levine, \n   H. H. Guetter, J. A. Munn (U.S. Naval Observatory, Flagstaff),\nD. H. Hartmann (Clemson University, Clemson), \nA. Castro-Tirado (LAEFF-INTA, Madrid, and IAA-CSIC, Granada), \nJ. Gorosabel (DSRI, Copenhagen), \nJ. M. Castro Ceron (ROA, San Fernando), and\nM. R. Zapatero-Osorio, D. M. Delgado, S. Chueca, M. J. Arevalo\n   (IAC, Tenerife)\n\nreport:\n\n\nThe refined error box of GRB 000615 (Gandolfi et al. GCN #705) was\nimaged in two successive runs with the Calar Alto 3.5-m telescope on\nJune 15, 22:09 UT - 00:25 UT using the near-infrared camera Omega Cass\nin the polarimetric mode. The limiting magnitude of either K'-band\nimage is about K'=19 after adding all frames taken at different\nposition angles of the wire-grid  polarizer.\n\nA red source in the GRB error box with no counterpart on the DSS-2 red\nimage is at RA, DEC (J2000) = 15:32:35.16, 73:50:45.2 (+/- 1\narcsec). We estimate its magnitude K'=19. Further data reduction is\nin progress, the K'-band magnitude can be improved. This source is\nalso barely visible on an R-band image taken at USNO with the 1.0-m\ntelescope on June 16, 03:48 UT (limiting magnitude about R=21). It is\nalso visible as a faint source on an I-band image taken with the IAC\n80 telescope on June 15.9 UT (limiting magnitude about 20.5).\n\nWe note we do not claim that this is a fading source, since second\nepoch K'-band data are not available. At the present stage we cannot\nrule out that this is a faint Galactic star with an R-K color of\nabout 2 mag.\n\n\nThis message is quotable.",
  "circularId": 713,
  "createdOn": 961272925000,
  "email": "klose@tls-tautenburg.de",
  "subject": "GRB 000615, near-infrared observations",
  "submitter": "Sylvio Klose at TLS Tautenburg  <klose@tls-tautenburg.de>",
  "eventId": "GRB 000615"
}