{
  "bibcode": "1999GCN...229....1A",
  "body": "L.A. Antonelli, A. Di Paola, Osservatorio Astronomico di Roma, \nG. Gandolfi (BeppoSAX Scientific Operation Center) report on \nbehalf of SWIRT Team and BeppoSAX Team:\n\n\"On 25.16 (UT) January 1999, we imaged the Optical Transient field \nin the K band using the 1.1m AZT-24 telescope and the near-infrared \ncamera/spectrometer SWIRCAM at the Campo Imperatore Astronomical \nObservatory (http://www.mporzio.astro.it/cimperatore/WWW/) operated \nby the Astronomical Observatory of Rome (O.A.R.). \n\nThe 4'X4' field of view was exposed for 3300 s reaching the limiting\nmagnitude in the K band of 17.9 +/- 0.2 mag. No source has been found\nwithin the errorbox of the O.T. (IAUC 7094). This observation provides\na more compelling upper limit in K band with respect to the previous\nobservation in the same band (GCN #214). The behaviour of the \nsource between the two observation, at this wavelenght, is unknown. \n\nFurther near infrared observations are in progress.\n\nThis message may be cited.\"",
  "circularId": 229,
  "createdOn": 917380577000,
  "email": "angelo@quasar.mporzio.astro.it",
  "subject": "GRB990123: NIR Observation",
  "submitter": "Angelo Antonelli at Obs. Astro. di Roma  <angelo@quasar.mporzio.astro.it>",
  "eventId": "GRB 990123"
}