Search effort (km) Sightings Trip Season Ship Start Date Primary Secondary Primary Duplicate 1 2001 Yermolova 3 Dec 17 Dec 926 0 26 0 2 2001 Yermolova 20 Dec 27 Dec 411 0 11 0 3 2001 Yermolova 30 Dec 22 Jan 1298 462 87 40 4 2001 Orlova 24 Jan 30 Jan 180 0 1 0 5 2001 Orlova 2 Feb 9 Feb 342 0 11 0 6 2001 Orlova 11 Feb 16 Feb 297 0 2 0 7 2001 Orlova 19 Feb 26 Feb 680 0 27 0 8 2001 Orlova 1 March 14 March 1013 46 34 10 9 2002 Explorer 5 Dec 11 Dec 341 0 17 0 10 2002 Explorer 14 Dec 20 Dec 257 0 2 0 11 2002 Explorer 26 Dec 2 Jan 244 134 11 6 12 2002 Explorer 9 Jan 17 Jan 920 66 26 3 13 2002 Explorer 20 Jan 1 Feb 1745 171 80 9 14 2002 Explorer 4 Feb 12 Feb 1329 230 29 5 Total: 9981 1109 364 73