{
  "bibcode": "1998GCN...135....1P",
  "body": "H. S. Park(LLNL), R. A. Porrata(LLNL), and G. G. Williams (Clemson Univ.)\nreport on behalf of the LOTIS collaboration:\n \nR. Bionta, E. Ables, L. Ott, E. Parker (LLNL)\nS. Barthelmy, N. Gehrels, T. Cline (NASA/GSFC)\nD. Hartmann (Clemson Univ.)\nC. Kouveliotou, G. Fishman, C. Meegan (NASA/MSFC)\nD. Band (U.C. San Diego)\nK. Hurley (U. C. Berkeley)\nD. Ferguson (Cal State, Hayward)\nR. Nemiroff (Michigan Technological University)\n \nLOTIS obtained images in the field of  GRB980703 within 5.03 hours after\nthe burst began (July 3.39 UT). LOTIS resumed its automatic observation\nprogram after a recent upgrade incorporating thermoelectric cooling to its\nfour CCD cameras. The upgrade increased the sensitivity from the\nnon-cooled apparatus by at least three magnitudes.\n \nLOTIS is capable of responding to GRB events as soon as 10 s after a burst\nlocalization by utilizing the BATSE real-time trigger to initiate the fast\nslewing mount. The telescope has a 17.4 x 17.4 degree wide field-of-view\nwhich can cover a large portion of the BATSE error box for real-time triggers.\n \nThe GRB980703 trigger came at 9:20 PM local time while there was still day\nlight in California. In addition, the reported OT location (GCN #128) was\nbelow the horizon when the sky monitoring began that night. Therefore, LOTIS\ncould not cover this event in real-time. However, our all-sky patrol program  \neventually imaged the GRB980703 field 5 hours after the burst. We also have \nthe sky patrol data from the previous and the following nights. The \nintegration time used for these images was 30 s. We have analyzed the images \ntaken at July 2.39, 2.47, 3.39, 3.47, 4.39, 4.47 and 6.47 UT by comparing \nthem to each other and with the Digital Sky Survey images. \n \nNo flaring or fading sources were observed at mV~15 with a 5 sigma \ndetection threshold.  The LOTIS images of this event can be viewed at \nhttp://hubcap.clemson.edu/~ggwilli/LOTIS/GRB980703.html.\n \nThis message may be cited.",
  "circularId": 135,
  "createdOn": 899853903000,
  "email": "hpark@llnl.gov",
  "subject": "GRB980703: LOTIS observation at early times",
  "submitter": "Hye-Sook Park at LLNL  <hpark@llnl.gov>",
  "eventId": "GRB 980703"
}