TITLE: GCN/IPN/HUNTSVILLE LOCALIZATION NOTICE_TYPE: Final (based on the Huntsville AD Report location) NOTICE_DATE: Tue Jul 21 19:13:41 GMT 1998 TRIGGER_NUM: 6930 GRB_DATE: 98/07/18 GRB_TIME: 02:58:26.65 UT BACO_RA: 309.53d {+20h 38m 06s} (J2000) BACO_DEC: -47.73d {-47d 44' 04"} HUNT_RA: 318.91d {+21h 15m 39s} (J2000) HUNT_DEC: -46.39d {-46d 23' 18"} HUNT_ERR: 1.76 [degees radius, statistical only] B_H_DELTA: 6.53 [deg] HUNT_SC_AZ: 222.20 [deg] HUNT_SC_EL: -44.20 [deg] {Zen_angle=134.20} SUN_POSTN: 117.27d {+07h 49m 04s} +21.08d {+21d 04' 32"} (Current) SUN_B_DIST: 151.57 [deg] MOON_POSTN: 44.01d {+02h 56m 02s} +11.56d {+11d 33' 19"} (Current) MOON_B_DIST: 101.54 [deg] ANNULUS_RA: 333.1929d {+22h 12m 46s} (J2000) ANNULUS_DEC: -7.8775d {-07d 52' 38"} ANNULUS_RADIUS: 41.558 [deg] ANNULUS_WIDTH: 0.082 [deg] (Total width) COMMENTS: GRB. DOUBLE PULSE. SECOND PULSE IS STRONGER THAN THE FIRST. COMMENTS: TOTAL DURATION ABOUT 45 S. NOT VISIBLE 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 311.652 -45.015 5.25 <=== +3-sigma probability 311.697 -45.036 5.21 311.743 -45.057 5.18 311.788 -45.078 5.14 311.833 -45.098 5.10 311.879 -45.119 5.07 311.924 -45.140 5.03 311.969 -45.160 4.99 312.015 -45.181 4.96 312.060 -45.201 4.92 312.106 -45.222 4.88 312.151 -45.242 4.85 312.197 -45.263 4.81 312.242 -45.283 4.77 312.288 -45.303 4.74 312.334 -45.323 4.70 312.379 -45.343 4.66 312.425 -45.363 4.63 312.470 -45.383 4.59 312.516 -45.403 4.56 312.562 -45.423 4.52 312.608 -45.443 4.48 312.653 -45.463 4.45 312.699 -45.482 4.41 312.745 -45.502 4.38 312.791 -45.522 4.34 312.836 -45.541 4.31 312.882 -45.561 4.27 312.928 -45.580 4.23 312.974 -45.599 4.20 313.020 -45.619 4.16 313.066 -45.638 4.13 313.112 -45.657 4.09 313.157 -45.676 4.06 313.203 -45.695 4.02 313.249 -45.714 3.99 313.295 -45.733 3.95 313.341 -45.752 3.91 313.387 -45.771 3.88 313.433 -45.790 3.84 313.479 -45.809 3.81 313.525 -45.827 3.77 313.572 -45.846 3.74 313.618 -45.865 3.70 313.664 -45.883 3.67 313.710 -45.902 3.64 313.756 -45.920 3.60 313.802 -45.938 3.57 313.848 -45.957 3.53 313.895 -45.975 3.50 <=== +2-sigma probability 313.941 -45.993 3.46 313.987 -46.011 3.43 314.033 -46.029 3.39 314.079 -46.047 3.36 314.126 -46.065 3.33 314.172 -46.083 3.29 314.218 -46.101 3.26 314.265 -46.119 3.22 314.311 -46.137 3.19 314.357 -46.154 3.16 314.404 -46.172 3.12 314.450 -46.190 3.09 314.496 -46.207 3.05 314.543 -46.225 3.02 314.589 -46.242 2.99 314.636 -46.259 2.95 314.682 -46.277 2.92 314.729 -46.294 2.89 314.775 -46.311 2.85 314.822 -46.328 2.82 314.868 -46.345 2.79 314.915 -46.363 2.76 314.961 -46.380 2.72 315.008 -46.396 2.69 315.054 -46.413 2.66 315.101 -46.430 2.63 315.147 -46.447 2.59 315.194 -46.464 2.56 315.241 -46.480 2.53 315.287 -46.497 2.50 315.334 -46.514 2.47 315.381 -46.530 2.44 315.427 -46.546 2.40 315.474 -46.563 2.37 315.521 -46.579 2.34 315.567 -46.596 2.31 315.614 -46.612 2.28 315.661 -46.628 2.25 315.707 -46.644 2.22 315.754 -46.660 2.19 315.801 -46.676 2.16 315.848 -46.692 2.13 315.895 -46.708 2.10 315.941 -46.724 2.07 315.988 -46.740 2.04 316.035 -46.756 2.01 316.082 -46.771 1.98 316.129 -46.787 1.95 316.176 -46.803 1.92 316.222 -46.818 1.90 316.269 -46.834 1.87 316.316 -46.849 1.84 316.363 -46.865 1.81 316.410 -46.880 1.79 316.457 -46.895 1.76 <=== +1-sigma probability 316.504 -46.910 1.73 316.551 -46.926 1.71 316.598 -46.941 1.68 316.645 -46.956 1.65 316.692 -46.971 1.63 316.739 -46.986 1.60 316.786 -47.001 1.58 316.833 -47.016 1.56 316.880 -47.030 1.53 316.927 -47.045 1.51 316.974 -47.060 1.49 317.021 -47.075 1.46 317.068 -47.089 1.44 317.115 -47.104 1.42 317.162 -47.118 1.40 317.209 -47.133 1.38 317.256 -47.147 1.36 317.304 -47.162 1.34 317.351 -47.176 1.33 317.398 -47.190 1.31 317.445 -47.205 1.29 317.492 -47.219 1.28 317.539 -47.233 1.26 317.586 -47.247 1.25 317.634 -47.261 1.23 317.681 -47.275 1.22 317.728 -47.289 1.21 317.775 -47.303 1.20 317.822 -47.317 1.19 317.870 -47.330 1.18 317.917 -47.344 1.17 317.964 -47.358 1.16 318.011 -47.371 1.16 318.059 -47.385 1.15 318.106 -47.398 1.15 318.153 -47.412 1.15 318.200 -47.425 1.14 318.248 -47.439 1.14 <=== Max probability 318.295 -47.452 1.14 318.342 -47.465 1.14 318.390 -47.479 1.15 318.437 -47.492 1.15 318.484 -47.505 1.15 318.532 -47.518 1.16 318.579 -47.531 1.16 318.626 -47.544 1.17 318.674 -47.557 1.18 318.721 -47.570 1.19 318.769 -47.583 1.20 318.816 -47.595 1.21 318.863 -47.608 1.22 318.911 -47.621 1.23 318.958 -47.633 1.24 319.006 -47.646 1.26 319.053 -47.659 1.27 319.100 -47.671 1.29 319.148 -47.683 1.30 319.195 -47.696 1.32 319.243 -47.708 1.34 319.290 -47.721 1.36 319.338 -47.733 1.37 319.385 -47.745 1.39 319.433 -47.757 1.41 319.480 -47.769 1.43 319.528 -47.781 1.45 319.575 -47.793 1.47 319.623 -47.805 1.50 319.670 -47.817 1.52 319.718 -47.829 1.54 319.765 -47.841 1.56 319.813 -47.853 1.59 319.860 -47.864 1.61 319.908 -47.876 1.63 319.955 -47.888 1.66 320.003 -47.899 1.68 320.051 -47.911 1.71 320.098 -47.922 1.73 320.146 -47.934 1.76 320.193 -47.945 1.78 <=== -1-sigma probability 320.241 -47.956 1.81 320.288 -47.968 1.83 320.336 -47.979 1.86 320.384 -47.990 1.89 320.431 -48.001 1.91 320.479 -48.012 1.94 320.526 -48.024 1.97 320.574 -48.035 2.00 320.622 -48.045 2.02 320.669 -48.056 2.05 320.717 -48.067 2.08 320.765 -48.078 2.11 320.812 -48.089 2.13 320.860 -48.100 2.16 320.908 -48.110 2.19 320.955 -48.121 2.22 321.003 -48.132 2.25 321.051 -48.142 2.28 321.098 -48.153 2.30 321.146 -48.163 2.33 321.194 -48.173 2.36 321.241 -48.184 2.39 321.289 -48.194 2.42 321.337 -48.204 2.45 321.385 -48.215 2.48 321.432 -48.225 2.51 321.480 -48.235 2.54 321.528 -48.245 2.57 321.576 -48.255 2.60 321.623 -48.265 2.63 321.671 -48.275 2.66 321.719 -48.285 2.69 321.766 -48.295 2.72 321.814 -48.305 2.75 321.862 -48.314 2.78 321.910 -48.324 2.81 321.958 -48.334 2.84 322.005 -48.343 2.87 322.053 -48.353 2.90 322.101 -48.363 2.93 322.149 -48.372 2.96 322.196 -48.382 2.99 322.244 -48.391 3.02 322.292 -48.400 3.05 322.340 -48.410 3.08 322.388 -48.419 3.11 322.435 -48.428 3.14 322.483 -48.437 3.17 322.531 -48.446 3.20 322.579 -48.456 3.23 322.627 -48.465 3.26 322.675 -48.474 3.29 322.722 -48.483 3.32 322.770 -48.492 3.35 322.818 -48.500 3.38 322.866 -48.509 3.41 322.914 -48.518 3.44 322.962 -48.527 3.47 323.009 -48.535 3.50 323.057 -48.544 3.53 <=== -2-sigma probability 323.105 -48.553 3.57 323.153 -48.561 3.60 323.201 -48.570 3.63 323.249 -48.578 3.66 323.297 -48.587 3.69 323.345 -48.595 3.72 323.392 -48.603 3.75 323.440 -48.612 3.78 323.488 -48.620 3.81 323.536 -48.628 3.84 323.584 -48.636 3.87 323.632 -48.644 3.90 323.680 -48.652 3.94 323.728 -48.660 3.97 323.776 -48.668 4.00 323.824 -48.676 4.03 323.871 -48.684 4.06 323.919 -48.692 4.09 323.967 -48.700 4.12 324.015 -48.708 4.15 324.063 -48.716 4.18 324.111 -48.723 4.21 324.159 -48.731 4.24 324.207 -48.738 4.28 324.255 -48.746 4.31 324.303 -48.754 4.34 324.351 -48.761 4.37 324.399 -48.768 4.40 324.447 -48.776 4.43 324.494 -48.783 4.46 324.542 -48.791 4.49 324.590 -48.798 4.52 324.638 -48.805 4.55 324.686 -48.812 4.58 324.734 -48.819 4.62 324.782 -48.826 4.65 324.830 -48.833 4.68 324.878 -48.840 4.71 324.926 -48.847 4.74 324.974 -48.854 4.77 325.022 -48.861 4.80 325.070 -48.868 4.83 325.118 -48.875 4.86 325.166 -48.882 4.89 325.214 -48.888 4.93 325.262 -48.895 4.96 325.310 -48.902 4.99 325.358 -48.908 5.02 325.406 -48.915 5.05 325.454 -48.921 5.08 325.502 -48.928 5.11 325.550 -48.934 5.14 325.598 -48.940 5.17 325.646 -48.947 5.20 325.694 -48.953 5.24 325.742 -48.959 5.27 325.790 -48.965 5.30 <=== -3-sigma probability -------------------------------- THE END --------------------------------