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Table 1

Comparison between tiling before and after optimization for a random selection of events from Singer et al. (2014).

ID CC tiles CC-optimized Tile reduction (%) RT tiles RT-optimized Tile reduction (%)

288172 531 462 12.99 422 418 0.95
288830 38 37 2.63 29 29 0.0
303684 129 117 9.3 96 96 0.0
313831 5 4 20.0 3 3 0.0
1087 385 359 6.75 302 302 0.0
468530 307 273 11.07 217 213 1.84
588762 466 437 6.22 365 364 0.27
1065078 264 237 10.23 192 189 1.56
1027955 10 9 10.0 9 9 0.0
687313 469 453 3.41 426 425 0.23

Notes. The first column lists the sky-localization ID, the second and the third column show the number of CC tiles required to cover the 95% localization contour (CC) for the ten events with fixed-grid and optimized grid. The fifth and sixth columns show the same for the ranked tiles (RT). The fourth and the seventh column shows the percentage reduction upon optimization in the number of CC tiles and ranked tiles respectively.

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