TITLE: GCN/IPN/HUNTSVILLE LOCALIZATION NOTICE_TYPE: Updated (based on the BATSE-LOCBURST location) NOTICE_DATE: Thu May 6 19:14:36 GMT 1999 TRIGGER_NUM: 7549 GRB_DATE: 99/05/06 GRB_TIME: 11:23:30.93 UT BACO_RA: 176.72d {+11h 46m 52s} (J2000) BACO_DEC: -34.35d {-34d 21' 12"} HUNT_RA: 178.26d {+11h 53m 02s} (J2000) HUNT_DEC: -26.24d {-26d 14' 23"} HUNT_ERR: 2.02 [degees radius, statistical only] B_H_DELTA: 8.23 [deg] HUNT_SC_AZ: 217.84 [deg] HUNT_SC_EL: -43.52 [deg] {Zen_angle=133.52} SUN_POSTN: 43.04d {+02h 52m 09s} +16.48d {+16d 28' 59"} (Current) SUN_B_DIST: 134.97 [deg] MOON_POSTN: 290.74d {+19h 22m 57s} -19.72d {-19d 43' 03"} (Current) MOON_B_DIST: 97.24 [deg] ANNULUS_RA: 144.9608d {+09h 39m 51s} (J2000) ANNULUS_DEC: -7.3258d {-07d 19' 32"} ANNULUS_RADIUS: 37.419 [deg] ANNULUS_WIDTH: 0.112 [deg] (Total width) COMMENTS: Duration ~150 sec. Five separate peaks. Strong. COMMENTS: Seen above 300 keV. This IPN localization is preliminary. The "total width" of the annulus was selected to include all known uncertainties and systematics. The final analysis will reduce this width. All follow-up queries should be addressed to Kevin Hurley (UC Berkeley, khurley@sunspot.ssl.berkeley.edu). The center of the IPN annulus is tabulated below along the segment that intersects the Huntsville error circle. The Distance column is the sky-angle distance between the Huntville location and the sampled position on the arc segment. The position of maximum probability plus the 1-, 2-, & 3-sigma containment probabilities (statistical+systematic) are marked. A detailed description of the format, content, and meaning of this document is given in the URL: http://gcn.gsfc.nasa.gov/gcn/ipn.html (J2000) RA DEC Distance 175.423 -31.729 6.02 <=== +3-sigma probability 175.475 -31.664 5.95 175.526 -31.599 5.87 175.577 -31.534 5.79 175.628 -31.469 5.71 175.679 -31.404 5.64 175.730 -31.338 5.56 175.780 -31.272 5.48 175.830 -31.207 5.40 175.881 -31.141 5.33 175.930 -31.075 5.25 175.980 -31.009 5.17 176.030 -30.942 5.09 176.079 -30.876 5.02 176.128 -30.809 4.94 176.177 -30.743 4.86 176.226 -30.676 4.78 176.275 -30.609 4.70 176.324 -30.542 4.63 176.372 -30.475 4.55 176.420 -30.407 4.47 176.468 -30.340 4.39 176.516 -30.272 4.31 176.563 -30.205 4.24 176.611 -30.137 4.16 176.658 -30.069 4.08 176.705 -30.001 4.00 <=== +2-sigma probability 176.752 -29.932 3.92 176.798 -29.864 3.85 176.845 -29.796 3.77 176.891 -29.727 3.69 176.937 -29.658 3.61 176.983 -29.590 3.53 177.029 -29.521 3.46 177.075 -29.452 3.38 177.120 -29.382 3.30 177.165 -29.313 3.22 177.210 -29.244 3.14 177.255 -29.174 3.07 177.300 -29.104 2.99 177.344 -29.035 2.91 177.388 -28.965 2.83 177.432 -28.895 2.75 177.476 -28.825 2.68 177.520 -28.754 2.60 177.563 -28.684 2.52 177.607 -28.614 2.44 177.650 -28.543 2.37 177.693 -28.472 2.29 177.736 -28.402 2.21 177.778 -28.331 2.13 177.821 -28.260 2.06 177.842 -28.224 2.02 <=== +1-sigma probability 177.884 -28.153 1.94 177.926 -28.082 1.87 177.967 -28.011 1.79 178.009 -27.939 1.71 178.050 -27.867 1.64 178.091 -27.796 1.56 178.132 -27.724 1.49 178.173 -27.652 1.41 178.214 -27.580 1.34 178.254 -27.508 1.27 178.294 -27.436 1.20 178.334 -27.364 1.13 178.374 -27.291 1.06 178.414 -27.219 0.99 178.453 -27.146 0.92 178.493 -27.074 0.86 178.532 -27.001 0.80 178.571 -26.928 0.74 178.609 -26.855 0.69 178.648 -26.782 0.64 178.686 -26.709 0.60 178.724 -26.635 0.57 178.762 -26.562 0.55 178.800 -26.489 0.54 178.819 -26.452 0.54 <=== Max probability 178.837 -26.415 0.55 178.856 -26.378 0.55 178.893 -26.305 0.57 178.931 -26.231 0.60 178.967 -26.157 0.64 179.004 -26.083 0.69 179.041 -26.009 0.74 179.077 -25.935 0.79 179.113 -25.861 0.86 179.149 -25.787 0.92 179.185 -25.712 0.98 179.220 -25.638 1.05 179.256 -25.563 1.12 179.291 -25.489 1.19 179.326 -25.414 1.27 179.361 -25.339 1.34 179.395 -25.265 1.41 179.430 -25.190 1.49 179.464 -25.115 1.56 179.498 -25.040 1.64 179.532 -24.964 1.72 179.566 -24.889 1.79 179.599 -24.814 1.87 179.632 -24.739 1.95 179.649 -24.701 1.99 179.665 -24.663 2.02 <=== -1-sigma probability 179.698 -24.588 2.10 179.731 -24.512 2.18 179.764 -24.436 2.26 179.796 -24.361 2.34 179.828 -24.285 2.42 179.860 -24.209 2.49 179.892 -24.133 2.57 179.923 -24.057 2.65 179.955 -23.981 2.73 179.986 -23.905 2.81 180.017 -23.828 2.89 180.048 -23.752 2.97 180.079 -23.676 3.05 180.109 -23.599 3.13 180.139 -23.523 3.21 180.169 -23.446 3.29 180.199 -23.370 3.37 180.229 -23.293 3.45 180.259 -23.216 3.53 180.288 -23.139 3.61 180.317 -23.062 3.69 180.346 -22.985 3.77 180.375 -22.908 3.85 180.403 -22.831 3.93 180.432 -22.754 4.01 180.446 -22.716 4.05 <=== -2-sigma probability 180.474 -22.638 4.13 180.502 -22.561 4.21 180.530 -22.484 4.29 180.557 -22.406 4.37 180.585 -22.329 4.45 180.612 -22.252 4.53 180.639 -22.174 4.61 180.666 -22.096 4.69 180.693 -22.019 4.77 180.719 -21.941 4.85 180.745 -21.863 4.93 180.771 -21.785 5.01 180.797 -21.708 5.09 180.823 -21.630 5.17 180.849 -21.552 5.25 180.874 -21.474 5.33 180.899 -21.396 5.41 180.924 -21.318 5.49 180.949 -21.239 5.57 180.974 -21.161 5.65 180.998 -21.083 5.73 181.022 -21.005 5.81 181.047 -20.926 5.89 181.070 -20.848 5.98 181.094 -20.769 6.06 181.106 -20.730 6.10 <=== -3-sigma probability -------------------------------- THE END --------------------------------