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Table 4 Summary of number of locations estimated and distance to average GPS position using two methods of light level location estimation

From: A probabilistic algorithm to process geolocation data

Species and time period Method # of locations Median distance to GPS location [km] Mean ± sd (min – max) distance to GPS location [km]
black-browed albatross during solstice - 5.0°
sun elevation
504 226 347 ± 448 (13 – 4170)
  geographic median particle 482 185 235 ± 218 (5 – 2740)
  particle cloud 482 19 66 ± 168 (0 – 2380)
wandering albatross during equinox - 5.8°
sun elevation
79 662 1225 ± 1478 (80 – 5925)
  geographic median particle 148 145 155 ± 82 (8 – 493)
  particle cloud 148 17 25 ± 24 (1 – 133)
  1. Geographic median particle refers to the calculated most probable movement track, and particle cloud refers to the minimum distance of the iterated particle cloud from the GPS location (see Methods for details). Black-browed albatrosses were tracked around the solstice and wandering albatrosses around the equinox