Elephant Seal These data track the movement of an adult female elephant seal as she migrates between rookeries in southern California and distant northern foraging areas. <p> The data are courtesy of Brent Stewart, Hubbs-Sea World Research Institute. <p> Brillinger and Stewart (<i>Canadian Journal of Statistics</i>, 1998, pages 431-443) show that the seal migrates in a great-circle path. -135.0 42.0 4100000 0 0 Elephant Seal Day 54 1995-02-23 1995-02-23 #ball_green -120,34,0 1995-02-23 1 0 -120,34,0 -121.3,35,0 Day 55 1995-02-24 1995-02-24 #ball_green -121.3,35,0 1995-02-24 1 0 -121.3,35,0 -122.6,36,0 Day 56 1995-02-25 1995-02-25 #ball_green -122.6,36,0 1995-02-25 1 0 -122.6,36,0 -123.6,36.5,0 Day 57 1995-02-26 1995-02-26 #ball_green -123.6,36.5,0 1995-02-26 1 0 -123.6,36.5,0 -124.6,36.8,0 Day 58 1995-02-27 1995-02-27 #ball_green -124.6,36.8,0 1995-02-27 1 0 -124.6,36.8,0 -125.4,36.9,0 Day 59 1995-02-28 1995-02-28 #ball_green -125.4,36.9,0 1995-02-28 1 0 -125.4,36.9,0 -125.9,37,0 Day 60 1995-03-01 1995-03-01 #ball_green -125.9,37,0 1995-03-01 1 0 -125.9,37,0 -126.1,37.2,0 Day 61 1995-03-02 1995-03-02 #ball_green -126.1,37.2,0 1995-03-02 1 0 -126.1,37.2,0 -126.4,38.1,0 Day 62 1995-03-03 1995-03-03 #ball_green -126.4,38.1,0 1995-03-03 1 0 -126.4,38.1,0 -127,40.1,0 Day 63 1995-03-04 1995-03-04 #ball_green -127,40.1,0 1995-03-04 1 0 -127,40.1,0 -128.5,40.3,0 Day 64 1995-03-05 1995-03-05 #ball_green -128.5,40.3,0 1995-03-05 1 0 -128.5,40.3,0 -129.9,40.6,0 Day 65 1995-03-06 1995-03-06 #ball_green -129.9,40.6,0 1995-03-06 1 0 -129.9,40.6,0 -131.3,40.5,0 Day 66 1995-03-07 1995-03-07 #ball_green -131.3,40.5,0 1995-03-07 1 0 -131.3,40.5,0 -131.9,40.9,0 Day 67 1995-03-08 1995-03-08 #ball_green -131.9,40.9,0 1995-03-08 1 0 -131.9,40.9,0 -133.4,40.5,0 Day 68 1995-03-09 1995-03-09 #ball_green -133.4,40.5,0 1995-03-09 1 0 -133.4,40.5,0 -133.8,40.8,0 Day 69 1995-03-10 1995-03-10 #ball_green -133.8,40.8,0 1995-03-10 1 0 -133.8,40.8,0 -134.1,41.3,0 Day 70 1995-03-11 1995-03-11 #ball_green -134.1,41.3,0 1995-03-11 1 0 -134.1,41.3,0 -134.3,41.9,0 Day 71 1995-03-12 1995-03-12 #ball_green -134.3,41.9,0 1995-03-12 1 0 -134.3,41.9,0 -136,42,0 Day 72 1995-03-13 1995-03-13 #ball_green -136,42,0 1995-03-13 1 0 -136,42,0 -136.8,42.9,0 Day 73 1995-03-14 1995-03-14 #ball_green -136.8,42.9,0 1995-03-14 1 0 -136.8,42.9,0 -136.9,43,0 Day 74 1995-03-15 1995-03-15 #ball_green -136.9,43,0 1995-03-15 1 0 -136.9,43,0 -137.6,42.9,0 Day 75 1995-03-16 1995-03-16 #ball_green -137.6,42.9,0 1995-03-16 1 0 -137.6,42.9,0 -138.5,43.5,0 Day 76 1995-03-17 1995-03-17 #ball_green -138.5,43.5,0 1995-03-17 1 0 -138.5,43.5,0 -139.2,44.1,0 Day 77 1995-03-18 1995-03-18 #ball_green -139.2,44.1,0 1995-03-18 1 0 -139.2,44.1,0 -139.4,44.3,0 Day 78 1995-03-19 1995-03-19 #ball_green -139.4,44.3,0 1995-03-19 1 0 -139.4,44.3,0 -139.2,45,0 Day 79 1995-03-20 1995-03-20 #ball_green -139.2,45,0 1995-03-20 1 0 -139.2,45,0 -141.7,45,0 Day 80 1995-03-21 1995-03-21 #ball_green -141.7,45,0 1995-03-21 1 0 -141.7,45,0 -141.6,45.5,0 Day 81 1995-03-22 1995-03-22 #ball_green -141.6,45.5,0 1995-03-22 1 0 -141.6,45.5,0 -142.8,46.1,0 Day 82 1995-03-23 1995-03-23 #ball_green -142.8,46.1,0 1995-03-23 1 0 -142.8,46.1,0 -143.1,46.3,0 Day 83 1995-03-24 1995-03-24 #ball_green -143.1,46.3,0 1995-03-24 1 0 -143.1,46.3,0 -143.6,46.1,0 Day 84 1995-03-25 1995-03-25 #ball_green -143.6,46.1,0 1995-03-25 1 0 -143.6,46.1,0 -144.4,46.1,0 Day 86 1995-03-27 1995-03-27 #ball_green -144.4,46.1,0 1995-03-27 1 0 -144.4,46.1,0 -144.8,46.5,0 Day 87 1995-03-28 1995-03-28 #ball_green -144.8,46.5,0 1995-03-28 1 0 -144.8,46.5,0 -144.9,46.7,0 Day 88 1995-03-29 1995-03-29 #ball_green -144.9,46.7,0 1995-03-29 1 0 -144.9,46.7,0 -145.5,46.8,0 Day 89 1995-03-30 1995-03-30 #ball_green -145.5,46.8,0 1995-03-30 1 0 -145.5,46.8,0 -145.5,46.8,0 Day 90 1995-03-31 1995-03-31 #ball_green -145.5,46.8,0 1995-03-31 1 0 -145.5,46.8,0 -145.6,46.2,0 Day 91 1995-04-01 1995-04-01 #ball_green -145.6,46.2,0 1995-04-01 1 0 -145.6,46.2,0 -146.3,46.5,0 Day 92 1995-04-02 1995-04-02 #ball_green -146.3,46.5,0 1995-04-02 1 0 -146.3,46.5,0 -147.1,47,0 Day 93 1995-04-03 1995-04-03 #ball_green -147.1,47,0 1995-04-03 1 0 -147.1,47,0 -147.2,46.7,0 Day 94 1995-04-04 1995-04-04 #ball_green -147.2,46.7,0 1995-04-04 1 0 -147.2,46.7,0 -146.7,46.6,0 Day 95 1995-04-05 1995-04-05 #ball_red -146.7,46.6,0 1995-04-05 1 0 -146.7,46.6,0 -146,46.8,0 Day 96 1995-04-06 1995-04-06 #ball_red -146,46.8,0 1995-04-06 1 0 -146,46.8,0 -145.7,46.2,0 Day 97 1995-04-07 1995-04-07 #ball_red -145.7,46.2,0 1995-04-07 1 0 -145.7,46.2,0 -145.6,46.5,0 Day 98 1995-04-08 1995-04-08 #ball_red -145.6,46.5,0 1995-04-08 1 0 -145.6,46.5,0 -144,46.5,0 Day 99 1995-04-09 1995-04-09 #ball_red -144,46.5,0 1995-04-09 1 0 -144,46.5,0 -144.4,46.2,0 Day 100 1995-04-10 1995-04-10 #ball_red -144.4,46.2,0 1995-04-10 1 0 -144.4,46.2,0 -143.4,46.2,0 Day 101 1995-04-11 1995-04-11 #ball_red -143.4,46.2,0 1995-04-11 1 0 -143.4,46.2,0 -142.5,45.8,0 Day 102 1995-04-12 1995-04-12 #ball_red -142.5,45.8,0 1995-04-12 1 0 -142.5,45.8,0 -142,45,0 Day 103 1995-04-13 1995-04-13 #ball_red -142,45,0 1995-04-13 1 0 -142,45,0 -141.5,44.5,0 Day 104 1995-04-14 1995-04-14 #ball_red -141.5,44.5,0 1995-04-14 1 0 -141.5,44.5,0 -141.2,44,0 Day 105 1995-04-15 1995-04-15 #ball_red -141.2,44,0 1995-04-15 1 0 -141.2,44,0 -140.2,44,0 Day 106 1995-04-16 1995-04-16 #ball_red -140.2,44,0 1995-04-16 1 0 -140.2,44,0 -139.4,43,0 Day 107 1995-04-17 1995-04-17 #ball_red -139.4,43,0 1995-04-17 1 0 -139.4,43,0 -138.7,43,0 Day 108 1995-04-18 1995-04-18 #ball_red -138.7,43,0 1995-04-18 1 0 -138.7,43,0 -137.6,43.5,0 Day 109 1995-04-19 1995-04-19 #ball_red -137.6,43.5,0 1995-04-19 1 0 -137.6,43.5,0 -136.4,43.4,0 Day 110 1995-04-20 1995-04-20 #ball_red -136.4,43.4,0 1995-04-20 1 0 -136.4,43.4,0 -136.4,42.1,0 Day 112 1995-04-22 1995-04-22 #ball_red -136.4,42.1,0 1995-04-22 1 0 -136.4,42.1,0 -134.6,42.1,0 Day 113 1995-04-23 1995-04-23 #ball_red -134.6,42.1,0 1995-04-23 1 0 -134.6,42.1,0 -134.2,42.3,0 Day 114 1995-04-24 1995-04-24 #ball_red -134.2,42.3,0 1995-04-24 1 0 -134.2,42.3,0 -132.8,42,0 Day 115 1995-04-25 1995-04-25 #ball_red -132.8,42,0 1995-04-25 1 0 -132.8,42,0 -132.2,41.6,0 Day 116 1995-04-26 1995-04-26 #ball_red -132.2,41.6,0 1995-04-26 1 0 -132.2,41.6,0 -132.5,41.1,0 Day 117 1995-04-27 1995-04-27 #ball_red -132.5,41.1,0 1995-04-27 1 0 -132.5,41.1,0 -131.5,39.5,0 Day 118 1995-04-28 1995-04-28 #ball_red -131.5,39.5,0 1995-04-28 1 0 -131.5,39.5,0 -130,39.6,0 Day 119 1995-04-29 1995-04-29 #ball_red -130,39.6,0 1995-04-29 1 0 -130,39.6,0 -129.8,39,0 Day 120 1995-04-30 1995-04-30 #ball_red -129.8,39,0 1995-04-30 1 0 -129.8,39,0 -129.4,39.6,0 Day 121 1995-05-01 1995-05-01 #ball_red -129.4,39.6,0 1995-05-01 1 0 -129.4,39.6,0 -127.2,38.5,0 Day 122 1995-05-02 1995-05-02 #ball_red -127.2,38.5,0 1995-05-02 1 0 -127.2,38.5,0 -126.4,37.1,0 Day 123 1995-05-03 1995-05-03 #ball_red -126.4,37.1,0 1995-05-03 1 0 -126.4,37.1,0 -125,36.5,0 Day 124 1995-05-04 1995-05-04 #ball_red -125,36.5,0 1995-05-04 1 0 -125,36.5,0 -124.6,36,0 Day 125 1995-05-05 1995-05-05 #ball_red -124.6,36,0 1995-05-05 1 0 -124.6,36,0 -124,35,0 Day 126 1995-05-06 1995-05-06 #ball_red -124,35,0 1995-05-06 1 0 -124,35,0 -122.9,34.6,0 Day 127 1995-05-07 1995-05-07 #ball_red -122.9,34.6,0 1995-05-07 1 0 -122.9,34.6,0 -120,34,0 Day 128 1995-05-08 1995-05-08 #ball_red -120,34,0