TITLE: GCN/IPN/HUNTSVILLE LOCALIZATION NOTICE_TYPE: Final (based on the Huntsville AD Report location) NOTICE_DATE: Thu May 21 01:09:02 GMT 1998 TRIGGER_NUM: 6764 GRB_DATE: 98/05/19 GRB_TIME: 12:20:12.64 UT BACO_RA: 54.58d {+03h 38m 18s} (J2000) BACO_DEC: +64.84d {+64d 50' 07"} HUNT_RA: 356.78d {+23h 47m 07s} (J2000) HUNT_DEC: 76.34d {+76d 20' 10"} HUNT_ERR: 1.94 [degees radius, statistical only] B_H_DELTA: 21.09 [deg] HUNT_SC_AZ: 6.10 [deg] HUNT_SC_EL: 35.40 [deg] {Zen_angle=54.60} SUN_POSTN: 56.08d {+03h 44m 19s} +19.79d {+19d 47' 14"} (Current) SUN_B_DIST: 45.05 [deg] MOON_POSTN: 334.25d {+22h 17m 01s} -10.39d {-10d 23' 11"} (Current) MOON_B_DIST: 95.31 [deg] ANNULUS_RA: 329.4854d {+21h 57m 56s} (J2000) ANNULUS_DEC: -11.8727d {-11d 52' 21"} ANNULUS_RADIUS: 89.964 [deg] ANNULUS_WIDTH: 0.104 [deg] (Total width) COMMENTS: GRB. LOTS OF STRUCTURE. DURATION APPROX. = 60 SEC. VISIBLE ABOVE 300KEV. 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 15.277 73.171 5.77 <=== +3-sigma probability 15.111 73.218 5.70 14.945 73.265 5.63 14.778 73.311 5.57 14.612 73.357 5.50 14.446 73.403 5.43 14.280 73.448 5.37 14.113 73.493 5.30 13.947 73.537 5.24 13.781 73.582 5.17 13.614 73.625 5.11 13.448 73.669 5.05 13.281 73.712 4.98 13.115 73.755 4.92 12.948 73.797 4.86 12.782 73.840 4.79 12.615 73.881 4.73 12.449 73.923 4.67 12.282 73.964 4.61 12.115 74.005 4.55 11.949 74.045 4.49 11.782 74.085 4.43 11.615 74.125 4.36 11.449 74.165 4.30 11.282 74.204 4.24 11.115 74.243 4.19 10.949 74.281 4.13 10.782 74.320 4.07 10.615 74.358 4.01 10.448 74.395 3.95 10.282 74.433 3.89 10.115 74.470 3.83 <=== +2-sigma probability 9.948 74.507 3.78 9.782 74.543 3.72 9.615 74.579 3.66 9.448 74.615 3.60 9.282 74.651 3.55 9.115 74.686 3.49 8.948 74.721 3.44 8.782 74.756 3.38 8.615 74.790 3.32 8.449 74.824 3.27 8.282 74.858 3.21 8.115 74.892 3.16 7.949 74.925 3.11 7.782 74.958 3.05 7.616 74.991 3.00 7.450 75.024 2.94 7.283 75.056 2.89 7.117 75.088 2.84 6.950 75.120 2.78 6.784 75.151 2.73 6.618 75.183 2.68 6.451 75.214 2.63 6.285 75.244 2.57 6.119 75.275 2.52 5.953 75.305 2.47 5.787 75.335 2.42 5.620 75.365 2.37 5.454 75.394 2.32 5.288 75.424 2.27 5.122 75.453 2.22 4.956 75.482 2.17 4.790 75.510 2.12 4.625 75.539 2.07 4.459 75.567 2.02 4.293 75.595 1.97 4.127 75.622 1.92 <=== +1-sigma probability 3.961 75.650 1.87 3.796 75.677 1.82 3.630 75.704 1.77 3.464 75.731 1.72 3.299 75.757 1.68 3.133 75.784 1.63 2.968 75.810 1.58 2.803 75.836 1.53 2.637 75.861 1.49 2.472 75.887 1.44 2.307 75.912 1.39 2.142 75.937 1.35 1.976 75.962 1.30 1.811 75.987 1.25 1.646 76.011 1.21 1.481 76.035 1.16 1.316 76.059 1.12 1.151 76.083 1.07 0.987 76.107 1.03 0.822 76.130 0.98 0.657 76.153 0.94 0.492 76.177 0.90 0.328 76.199 0.85 0.163 76.222 0.81 359.999 76.245 0.77 359.834 76.267 0.73 359.670 76.289 0.69 359.506 76.311 0.64 359.341 76.333 0.61 359.177 76.354 0.57 359.013 76.376 0.53 358.849 76.397 0.49 358.685 76.418 0.46 358.521 76.439 0.42 358.357 76.459 0.39 358.193 76.480 0.36 358.029 76.500 0.33 357.865 76.520 0.31 357.702 76.540 0.29 357.538 76.560 0.28 357.374 76.580 0.28 <=== Max probability 357.211 76.599 0.28 357.047 76.618 0.29 356.884 76.638 0.30 356.721 76.656 0.32 356.557 76.675 0.34 356.394 76.694 0.37 356.231 76.712 0.39 356.068 76.731 0.42 355.905 76.749 0.46 355.742 76.767 0.49 355.579 76.785 0.53 355.416 76.802 0.56 355.253 76.820 0.60 355.090 76.837 0.63 354.928 76.855 0.67 354.765 76.872 0.71 354.602 76.889 0.74 354.440 76.905 0.78 354.277 76.922 0.82 354.115 76.938 0.86 353.953 76.955 0.90 353.790 76.971 0.93 353.628 76.987 0.97 353.466 77.003 1.01 353.304 77.018 1.05 353.142 77.034 1.09 352.980 77.049 1.13 352.818 77.065 1.16 352.656 77.080 1.20 352.494 77.095 1.24 352.332 77.110 1.28 352.171 77.125 1.32 352.009 77.139 1.35 351.847 77.154 1.39 351.686 77.168 1.43 351.524 77.182 1.47 351.363 77.196 1.51 351.201 77.210 1.54 351.040 77.224 1.58 350.879 77.238 1.62 350.718 77.251 1.66 350.557 77.265 1.69 350.396 77.278 1.73 350.234 77.291 1.77 350.074 77.304 1.81 349.913 77.317 1.84 349.752 77.330 1.88 349.591 77.343 1.92 349.430 77.355 1.95 <=== -1-sigma probability 349.269 77.367 1.99 349.109 77.380 2.03 348.948 77.392 2.06 348.788 77.404 2.10 348.627 77.416 2.14 348.467 77.428 2.17 348.306 77.439 2.21 348.146 77.451 2.25 347.986 77.462 2.28 347.826 77.474 2.32 347.665 77.485 2.36 347.505 77.496 2.39 347.345 77.507 2.43 347.185 77.518 2.46 347.025 77.528 2.50 346.865 77.539 2.54 346.705 77.549 2.57 346.546 77.560 2.61 346.386 77.570 2.64 346.226 77.580 2.68 346.066 77.590 2.72 345.907 77.600 2.75 345.747 77.610 2.79 345.588 77.620 2.82 345.428 77.629 2.86 345.269 77.639 2.89 345.109 77.648 2.93 344.950 77.657 2.96 344.791 77.666 3.00 344.631 77.676 3.03 344.472 77.684 3.07 344.313 77.693 3.10 344.154 77.702 3.14 343.995 77.711 3.17 343.836 77.719 3.21 343.677 77.728 3.24 343.518 77.736 3.28 343.359 77.744 3.31 343.200 77.752 3.35 343.041 77.760 3.38 342.882 77.768 3.41 342.724 77.776 3.45 342.565 77.783 3.48 342.406 77.791 3.52 342.248 77.799 3.55 342.089 77.806 3.59 341.930 77.813 3.62 341.772 77.820 3.65 341.613 77.827 3.69 341.455 77.834 3.72 341.296 77.841 3.76 341.138 77.848 3.79 340.980 77.855 3.82 340.821 77.861 3.86 340.663 77.868 3.89 <=== -2-sigma probability 340.505 77.874 3.93 340.347 77.880 3.96 340.189 77.887 3.99 340.030 77.893 4.03 339.872 77.899 4.06 339.714 77.905 4.09 339.556 77.910 4.13 339.398 77.916 4.16 339.240 77.922 4.19 339.082 77.927 4.23 338.924 77.933 4.26 338.766 77.938 4.29 338.609 77.943 4.33 338.451 77.948 4.36 338.293 77.953 4.39 338.135 77.958 4.43 337.977 77.963 4.46 337.820 77.968 4.49 337.662 77.973 4.53 337.504 77.977 4.56 337.347 77.982 4.59 337.189 77.986 4.63 337.031 77.990 4.66 336.874 77.994 4.69 336.716 77.999 4.73 336.559 78.003 4.76 336.401 78.007 4.79 336.244 78.010 4.82 336.086 78.014 4.86 335.929 78.018 4.89 335.771 78.021 4.92 335.614 78.025 4.96 335.457 78.028 4.99 335.299 78.032 5.02 335.142 78.035 5.05 334.985 78.038 5.09 334.827 78.041 5.12 334.670 78.044 5.15 334.513 78.047 5.18 334.355 78.049 5.22 334.198 78.052 5.25 334.041 78.055 5.28 333.884 78.057 5.31 333.726 78.060 5.35 333.569 78.062 5.38 333.412 78.064 5.41 333.255 78.066 5.45 333.098 78.068 5.48 332.941 78.070 5.51 332.784 78.072 5.54 332.626 78.074 5.58 332.469 78.076 5.61 332.312 78.077 5.64 332.155 78.079 5.67 331.998 78.080 5.71 331.841 78.082 5.74 331.684 78.083 5.77 331.527 78.084 5.80 331.370 78.085 5.83 <=== -3-sigma probability -------------------------------- THE END --------------------------------