Free Access

Table 1

Astrometry of the Orcus’ system observations, together with the residuals to an orbital fit. The right ascension and declination are referred to epoch J2000.

Year Month Day RA Dec RA residual Dec residual Δ r
(UT) h ′′ ° ′′ (arcsec) (arcsec) AU AU

2009 12 16.26831 09 49 13.333 –06 29 39.05 +0.16 –0.21 47.463 47.828
2009 12 16.27280 09 49 13.317 –06 29 39.19 +0.05 –0.28 47.463 47.828
2009 12 16.27739 09 49 13.310 –06 29 39.44 +0.07 –0.46 47.463 47.828
2009 12 16.28198 09 49 13.300 –06 29 39.23 +0.05 –0.18 47.463 47.828
2009 12 16.28636 09 49 13.279 –06 29 39.20 –0.14 –0.08 47.463 47.828
2009 12 16.29093 09 49 13.270 –06 29 39.10 –0.15 +0.09 47.463 47.828
2009 12 16.29543 09 49 13.266 –06 29 39.18 –0.08 +0.08 47.463 47.828
2009 12 16.29993 09 49 13.257 –06 29 39.31 –0.09 +0.02 47.463 47.828
2009 12 16.30446 09 49 13.248 –06 29 39.36 –0.09 +0.03 47.462 47.828
2009 12 16.30895 09 49 13.235 –06 29 39.41 –0.16 +0.05 47.462 47.828
2009 12 18.27566 09 49 09.536 –06 30 08.05 +0.10 +0.05 47.433 47.828
2009 12 18.28012 09 49 09.546 –06 30 08.09 +0.38 +0.07 47.433 47.828
2009 12 18.28466 09 49 09.508 –06 30 08.09 –0.05 +0.14 47.433 47.828
2009 12 18.28923 09 49 09.500 –06 30 07.97 –0.03 +0.32 47.432 47.828
2009 12 18.29372 09 49 09.494 –06 30 08.22 +0.01 +0.13 47.432 47.828
2009 12 18.29830 09 49 09.477 –06 30 08.07 –0.10 +0.35 47.432 47.828
2009 12 18.30294 09 49 09.479 –06 30 08.22 +0.07 +0.26 47.432 47.828
2009 12 18.30750 09 49 09.474 –06 30 08.41 +0.13 +0.14 47.432 47.828
2009 12 18.31199 09 49 09.443 –06 30 08.31 –0.19 +0.30 47.432 47.828
2009 12 18.31657 09 49 09.442 –06 30 08.64 –0.07 +0.03 47.432 47.828
2009 12 19.26960 09 49 07.542 –06 30 21.54 –0.01 +0.18 47.418 47.828
2009 12 19.27375 09 49 07.540 –06 30 21.66 +0.09 +0.11 47.418 47.828
2009 12 19.27823 09 49 07.522 –06 30 21.49 –0.04 +0.34 47.418 47.828
2009 12 19.28284 09 49 07.521 –06 30 21.81 +0.09 +0.08 47.418 47.828
2009 12 19.28733 09 49 07.518 –06 30 21.63 +0.19 +0.32 47.418 47.828
2009 12 19.29186 09 49 07.495 –06 30 21.86 –0.01 +0.16 47.417 47.828
2009 12 19.29639 09 49 07.492 –06 30 22.25 +0.08 –0.17 47.417 47.828
2009 12 19.30100 09 49 07.466 –06 30 22.11 –0.16 +0.03 47.417 47.828
2009 12 19.30543 09 49 07.456 –06 30 21.97 –0.17 +0.23 47.417 47.828
2009 12 19.30992 09 49 07.458 –06 30 21.96 +0.00 +0.30 47.417 47.828
2009 12 21.25594 09 49 03.355 –06 30 47.10 –0.04 +0.08 47.389 47.828
2009 12 21.26043 09 49 03.354 –06 30 47.07 +0.09 +0.17 47.388 47.828
2009 12 21.26498 09 49 03.346 –06 30 46.88 +0.13 +0.41 47.388 47.828
2009 12 21.26954 09 49 03.328 –06 30 46.97 +0.01 +0.38 47.388 47.828
2009 12 21.27396 09 49 03.331 –06 30 46.88 +0.20 +0.52 47.388 47.828
2009 12 21.27830 09 49 03.301 –06 30 47.21 –0.10 +0.24 47.388 47.828
2009 12 21.28287 09 49 03.301 –06 30 47.23 +0.05 +0.28 47.388 47.828
2009 12 21.28718 09 49 03.276 –06 30 47.59 –0.18 –0.03 47.388 47.828
2009 12 21.29165 09 49 03.286 –06 30 47.40 +0.12 +0.22 47.388 47.828
2009 12 21.29621 09 49 03.275 –06 30 47.44 +0.11 +0.23 47.388 47.828
2009 12 23.29572 09 48 58.781 –06 31 10.72 +0.22 +0.17 47.359 47.828
2009 12 23.30014 09 48 58.762 –06 31 10.70 +0.09 +0.24 47.359 47.828
2009 12 23.30474 09 48 58.752 –06 31 10.95 +0.11 +0.04 47.359 47.828
2009 12 23.30925 09 48 58.746 –06 31 10.94 +0.18 +0.10 47.359 47.828
2009 12 23.31380 09 48 58.731 –06 31 10.97 +0.11 +0.12 47.359 47.828
2009 12 23.31820 09 48 58.720 –06 31 10.95 +0.11 +0.19 47.359 47.828
2009 12 23.32275 09 48 58.722 –06 31 11.13 +0.30 +0.06 47.359 47.828
2009 12 23.32728 09 48 58.697 –06 31 11.03 +0.09 +0.21 47.359 47.828
2009 12 23.33167 09 48 58.684 –06 31 11.10 +0.05 +0.19 47.358 47.828
2009 12 23.33627 09 48 58.687 –06 31 11.11 +0.26 +0.23 47.358 47.828
2009 12 24.30182 09 48 56.393 –06 31 21.86 –0.05 –0.19 47.345 47.828
2009 12 24.30607 09 48 56.407 –06 31 21.62 +0.31 +0.09 47.345 47.828
2009 12 24.31066 09 48 56.382 –06 31 21.61 +0.11 +0.15 47.345 47.828
2009 12 24.31525 09 48 56.362 –06 31 21.75 –0.02 +0.06 47.344 47.828
2009 12 24.31958 09 48 56.358 –06 31 21.73 +0.08 +0.12 47.344 47.828
2009 12 24.32408 09 48 56.349 –06 31 21.79 +0.11 +0.11 47.344 47.828
2009 12 24.32867 09 48 56.352 –06 31 21.67 +0.32 +0.28 47.344 47.828
2009 12 24.33315 09 48 56.338 –06 31 21.67 +0.28 +0.32 47.344 47.828
2009 12 24.33778 09 48 56.333 –06 31 21.78 +0.37 +0.26 47.344 47.828
2009 12 24.34243 09 48 56.312 –06 31 21.89 +0.23 +0.20 47.344 47.828
2009 12 25.29835 09 48 53.990 –06 31 31.52 +0.13 +0.22 47.331 47.828
2009 12 25.30284 09 48 53.985 –06 31 31.89 +0.22 –0.10 47.331 47.828
2009 12 25.30708 09 48 53.936 –06 31 31.86 –0.35 –0.03 47.330 47.828
2009 12 25.31158 09 48 53.924 –06 31 31.86 –0.36 +0.01 47.330 47.828
2009 12 25.31603 09 48 53.921 –06 31 32.11 –0.24 –0.19 47.330 47.828
2009 12 25.32042 09 48 53.922 –06 31 32.26 –0.06 –0.30 47.330 47.828
2009 12 25.32499 09 48 53.903 –06 31 32.35 –0.17 –0.35 47.330 47.828
2009 12 25.32956 09 48 53.889 –06 31 32.36 –0.20 –0.31 47.330 47.828
2009 12 25.33417 09 48 53.878 –06 31 32.24 –0.19 –0.15 47.330 47.828
2009 12 25.33866 09 48 53.871 –06 31 32.38 –0.13 –0.24 47.330 47.828
2009 12 26.30547 09 48 51.464 –06 31 41.61 –0.13 –0.29 47.317 47.828
2009 12 26.31010 09 48 51.449 –06 31 41.52 –0.17 –0.16 47.316 47.828
2009 12 26.31459 09 48 51.442 –06 31 41.65 –0.10 –0.25 47.316 47.828
2009 12 26.31914 09 48 51.436 –06 31 41.78 –0.02 –0.34 47.316 47.828
2009 12 26.32366 09 48 51.418 –06 31 41.77 –0.11 –0.29 47.316 47.828
2009 12 26.32818 09 48 51.429 –06 31 41.78 +0.23 –0.26 47.316 47.828
2009 12 26.33277 09 48 51.367 –06 31 42.10 –0.52 –0.53 47.316 47.828
2009 12 26.33739 09 48 51.391 –06 31 41.72 +0.02 –0.11 47.316 47.828
2009 12 26.34193 09 48 51.370 –06 31 41.81 –0.12 –0.16 47.316 47.828
2009 12 26.34652 09 48 51.344 –06 31 41.97 –0.33 –0.28 47.316 47.828
2009 12 27.29975 09 48 48.920 –06 31 50.57 –0.16 –0.41 47.303 47.828
2009 12 27.30432 09 48 48.903 –06 31 50.60 –0.23 –0.40 47.303 47.828
2009 12 27.30880 09 48 48.899 –06 31 50.55 –0.11 –0.31 47.303 47.828
2009 12 27.31334 09 48 48.891 –06 31 50.78 –0.05 –0.50 47.303 47.828
2009 12 27.31786 09 48 48.893 –06 31 50.59 +0.16 –0.27 47.303 47.828
2009 12 27.32250 09 48 48.868 –06 31 51.12 –0.03 –0.76 47.303 47.828
2009 12 27.32697 09 48 48.852 –06 31 50.61 –0.09 –0.21 47.302 47.828
2009 12 27.33153 09 48 48.829 –06 31 50.99 –0.26 –0.55 47.302 47.828
2009 12 27.33610 09 48 48.825 –06 31 50.74 –0.13 –0.26 47.302 47.828
2009 12 27.34054 09 48 48.816 –06 31 51.09 –0.09 –0.57 47.302 47.828
2009 12 28.30215 09 48 46.290 –06 31 58.81 –0.18 –0.33 47.289 47.828
2009 12 28.30668 09 48 46.277 –06 31 58.80 –0.19 –0.28 47.289 47.828
2009 12 28.31124 09 48 46.263 –06 31 58.94 –0.21 –0.39 47.289 47.828
2009 12 28.31578 09 48 46.243 –06 31 59.02 –0.33 –0.43 47.289 47.828
2009 12 28.32019 09 48 46.249 –06 31 58.84 –0.06 –0.22 47.289 47.828
2009 12 28.32471 09 48 46.228 –06 31 58.89 –0.19 –0.23 47.289 47.828
2009 12 28.32923 09 48 46.224 –06 31 59.05 –0.07 –0.35 47.289 47.828
2009 12 28.33380 09 48 46.199 –06 31 59.00 –0.25 –0.27 47.289 47.828
2009 12 28.33814 09 48 46.196 –06 31 59.04 –0.12 –0.27 47.289 47.828
2009 12 28.34268 09 48 46.193 –06 31 59.02 +0.02 –0.22 47.289 47.828
2010 01 09.27728 09 48 10.230 –06 32 49.95 +0.47 +0.39 47.140 47.828
2010 01 09.28180 09 48 10.226 –06 32 50.14 +0.64 +0.20 47.140 47.828
2010 01 09.28628 09 48 10.192 –06 32 49.92 +0.36 +0.42 47.140 47.828
2010 01 09.29086 09 48 10.165 –06 32 50.28 +0.19 +0.06 47.140 47.828
2010 01 09.29541 09 48 10.151 –06 32 50.22 +0.21 +0.13 47.140 47.828
2010 01 09.29985 09 48 10.116 –06 32 50.53 –0.08 –0.18 47.140 47.828
2010 01 09.30438 09 48 10.099 –06 32 50.28 –0.11 +0.07 47.140 47.828
2010 01 09.30893 09 48 10.083 –06 32 50.34 –0.11 +0.02 47.140 47.828
2010 01 09.31342 09 48 10.074 –06 32 50.23 –0.02 +0.13 47.140 47.828
2010 01 09.31801 09 48 10.049 –06 32 50.24 –0.16 +0.12 47.140 47.828
2010 01 10.28184 09 48 06.814 –06 32 50.63 +0.12 +0.04 47.129 47.828
2010 01 10.28644 09 48 06.789 –06 32 51.18 –0.01 –0.51 47.129 47.828
2010 01 10.29102 09 48 06.775 –06 32 50.58 +0.02 +0.09 47.129 47.828
2010 01 10.29558 09 48 06.758 –06 32 50.72 +0.00 –0.05 47.129 47.828
2010 01 10.30008 09 48 06.745 –06 32 50.34 +0.04 +0.33 47.129 47.828
2010 01 10.30462 09 48 06.723 –06 32 50.55 –0.05 +0.12 47.129 47.828
2010 01 10.30909 09 48 06.706 –06 32 50.48 –0.08 +0.19 47.129 47.828
2010 01 10.31362 09 48 06.684 –06 32 50.47 –0.17 +0.20 47.129 47.828
2010 01 10.31815 09 48 06.677 –06 32 50.58 –0.04 +0.09 47.129 47.828
2010 01 10.32258 09 48 06.658 –06 32 50.56 –0.09 +0.11 47.128 47.828
2010 01 11.27892 09 48 03.401 –06 32 50.26 +0.19 +0.13 47.118 47.828
2010 01 11.28336 09 48 03.384 –06 32 50.19 +0.17 +0.20 47.118 47.828
2010 01 11.28785 09 48 03.361 –06 32 50.10 +0.07 +0.29 47.118 47.828
2010 01 11.29245 09 48 03.349 –06 32 50.04 +0.13 +0.34 47.118 47.828
2010 01 11.29683 09 48 03.329 –06 32 50.17 +0.06 +0.21 47.118 47.828
2010 01 11.30130 09 48 03.303 –06 32 50.39 –0.09 –0.01 47.118 47.828
2010 01 11.30579 09 48 03.307 –06 32 50.17 +0.20 +0.21 47.118 47.828
2010 01 11.31043 09 48 03.295 –06 32 50.50 +0.27 –0.13 47.118 47.828
2010 01 11.31486 09 48 03.277 –06 32 50.11 +0.23 +0.26 47.118 47.828
2010 01 11.31930 09 48 03.263 –06 32 50.17 +0.26 +0.20 47.118 47.828
2010 01 12.26323 09 47 59.959 –06 32 49.52 –0.12 –0.01 47.107 47.828
2010 01 12.26767 09 47 59.964 –06 32 49.48 +0.19 +0.03 47.107 47.828
2010 01 12.27218 09 47 59.939 –06 32 49.50 +0.06 +0.00 47.107 47.828
2010 01 12.27659 09 47 59.936 –06 32 49.60 +0.25 –0.10 47.107 47.828
2010 01 12.28107 09 47 59.918 –06 32 49.63 +0.22 –0.14 47.107 47.828
2010 01 12.28548 09 47 59.914 –06 32 49.48 +0.40 +0.01 47.107 47.828
2010 01 12.29011 09 47 59.886 –06 32 49.26 +0.22 +0.22 47.107 47.828
2010 01 12.29460 09 47 59.853 –06 32 49.43 –0.03 +0.05 47.107 47.828
2010 01 12.29904 09 47 59.852 –06 32 49.09 +0.19 +0.38 47.107 47.828
2010 01 12.30352 09 47 59.824 –06 32 49.58 +0.01 –0.11 47.107 47.828
2010 01 13.26833 09 47 56.432 –06 32 48.00 +0.12 +0.00 47.097 47.828
2010 01 13.27293 09 47 56.405 –06 32 48.06 –0.04 –0.07 47.097 47.828
2010 01 13.27753 09 47 56.397 –06 32 48.14 +0.09 –0.15 47.097 47.828
2010 01 13.28210 09 47 56.353 –06 32 47.80 –0.32 +0.18 47.097 47.828
2010 01 13.28664 09 47 56.373 –06 32 47.93 +0.23 +0.04 47.097 47.828
2010 01 13.29116 09 47 56.366 –06 32 47.93 +0.36 +0.03 47.097 47.828
2010 01 13.29566 09 47 56.337 –06 32 47.80 +0.17 +0.15 47.097 47.828
2010 01 13.30027 09 47 56.308 –06 32 47.60 –0.01 +0.35 47.097 47.828
2010 01 13.30488 09 47 56.293 –06 32 48.00 +0.02 –0.06 47.097 47.828
2010 01 13.30932 09 47 56.263 –06 32 48.03 –0.19 –0.10 47.097 47.828
2010 01 14.28568 09 47 52.794 –06 32 45.95 +0.07 –0.11 47.087 47.828
2010 01 14.29017 09 47 52.786 –06 32 45.76 +0.20 +0.07 47.086 47.828
2010 01 14.29460 09 47 52.760 –06 32 45.59 +0.05 +0.23 47.086 47.828
2010 01 14.29903 09 47 52.756 –06 32 45.63 +0.23 +0.18 47.086 47.828
2010 01 14.30353 09 47 52.703 –06 32 45.75 –0.31 +0.05 47.086 47.828
2010 01 14.30790 09 47 52.736 –06 32 45.37 +0.42 +0.42 47.086 47.828
2010 01 14.31242 09 47 52.680 –06 32 45.70 –0.17 +0.08 47.086 47.828
2010 01 14.31687 09 47 52.668 –06 32 45.99 –0.11 –0.22 47.086 47.828
2010 01 14.32121 09 47 52.642 –06 32 45.96 –0.26 –0.21 47.086 47.828
2010 01 14.32564 09 47 52.623 –06 32 45.57 –0.30 +0.17 47.086 47.828
2010 01 15.25154 09 47 49.283 –06 32 43.37 –0.23 –0.17 47.077 47.828
2010 01 15.25608 09 47 49.252 –06 32 43.00 –0.44 +0.19 47.077 47.828
2010 01 15.26066 09 47 49.243 –06 32 43.23 –0.32 –0.05 47.077 47.828
2010 01 15.26521 09 47 49.224 –06 32 43.16 –0.36 +0.00 47.077 47.828
2010 01 15.26968 09 47 49.192 –06 32 43.33 –0.59 –0.18 47.077 47.828
2010 01 15.27425 09 47 49.193 –06 32 43.05 –0.32 +0.09 47.077 47.828
2010 01 15.27873 09 47 49.171 –06 32 43.03 –0.40 +0.09 47.077 47.828
2010 01 15.28308 09 47 49.160 –06 32 43.09 –0.32 +0.02 47.077 47.828
2010 01 15.28765 09 47 49.149 –06 32 43.12 –0.23 –0.03 47.076 47.828
2010 01 15.29215 09 47 49.131 –06 32 43.06 –0.25 +0.02 47.076 47.828
2010 01 18.27056 09 47 38.125 –06 32 31.26 +0.06 +0.05 47.048 47.828
2010 01 18.27514 09 47 38.103 –06 32 31.21 +0.00 +0.07 47.048 47.828
2010 01 18.27968 09 47 38.069 –06 32 31.32 –0.25 –0.06 47.048 47.828
2010 01 18.28411 09 47 38.080 –06 32 31.48 +0.17 –0.24 47.048 47.828
2010 01 18.28857 09 47 38.063 –06 32 31.24 +0.17 –0.02 47.048 47.828
2010 01 18.29304 09 47 38.044 –06 32 31.86 +0.14 –0.66 47.048 47.828
2010 01 18.29760 09 47 38.037 –06 32 31.43 +0.29 –0.26 47.048 47.828
2010 01 18.30224 09 47 38.006 –06 32 31.33 +0.10 –0.18 47.048 47.828
2010 01 18.30683 09 47 37.993 –06 32 31.15 +0.17 –0.02 47.048 47.828
2010 01 18.31138 09 47 37.962 –06 32 31.47 –0.04 –0.36 47.048 47.828

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.