mass8_18 t x y 4.08 -145.723 -102.042 4.144 -127.037 -95.248 4.208 -108.837 -90.152 4.288 -91.365 -85.298 4.352 -73.407 -79.474 4.416 -58.362 -74.135 4.48 -44.287 -70.981 4.544 -30.698 -70.738 4.624 -19.292 -72.437 4.688 -7.644 -74.378 4.752 1.577 -75.592 4.816 11.527 -77.048 4.88 21.476 -78.261 4.96 30.455 -78.504 5.024 40.89 -78.989 5.088 50.354 -79.717 5.152 58.605 -80.688 5.216 68.797 -79.96 5.28 79.232 -80.202 5.36 87.968 -79.717 5.424 95.976 -79.717 5.488 105.925 -79.232 5.552 114.904 -78.261 5.616 123.397 -77.29 5.695 131.891 -76.562 5.76 139.656 -75.834 5.824 148.635 -74.621