Hi, I got a call this morning from Jan V. Paradjis of the Dutch GRB group. They are going to try for observations of the GRB980613 field in from La Palma starting in a few hours. They will be imaging in I-band. There is no more DD over-ride time available but I wanted to pass on this information to both of the groups with telescope time tonight. This might be a good opportunity to try to locate the OT based on comparison of La Palma data and APO data. The object is better observed during the first half of the night. At the moment, JVP is going to keep me up to date on what they find and where their data will be available. I will pass on anything I learn to the list here but if the observers on the telescope tonight are definitely going to go after this one I'll let the Dutch group know so that you can get info directly from them. I would be happy to help with doing difference imaging between the La Palma images and any APO data you get if that is your preference. -Alan *** Hourly airmass for GRB980613 *** Epoch 2000.00: RA 10 17 45.6, dec 71 29 56 Epoch 1998.45: RA 10 17 38.1, dec 71 30 24 At midnight: UT date 1998 Jun 13, Moon 0.90 illum, 123 degr from obj Local UT LMST HA secz par.angl. SunAlt MoonAlt 21 00 3 00 13 22 3 04 1.431 122.3 -9.4 ... 22 00 4 00 14 22 4 04 1.556 106.2 ... ... 23 00 5 00 15 22 5 04 1.731 91.4 ... 5.9 0 00 6 00 16 22 6 05 1.968 77.4 ... 16.5 1 00 7 00 17 22 7 05 2.277 64.0 ... 25.8 2 00 8 00 18 22 8 05 2.665 50.9 ... 33.3 3 00 9 00 19 23 9 05 3.117 37.9 ... 38.0 4 00 10 00 20 23 10 05 3.577 24.9 ... 39.2 5 00 11 00 21 23 11 05 3.932 11.9 -10.5 36.6 -- Alan Diercks Mail address while in Washington: Office: (206) 543-9373 University of Washington Lab: (206) 616-2960 Dept. of Astronomy Fax: (206) 685-0403 Box 351580 Seattle, WA 98195-1580 APO APO APO APO APO Apache Point Observatory 3.5m APO APO APO APO APO This is message 6 in the apo35-grb archive. You can find APO the archive on http://www.astro.princeton.edu/APO/apo35-grb/INDEX.html APO To join/leave the list, send mail to apo35-request@astro.princeton.edu APO To post a message, mail it to apo35-grb@astro.princeton.edu APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO