The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.
# Object: 83982 # Created Fri May 2 02:36:19 2008 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 96 observations of 96 # Arc: 6.22y # First observation: 2001/03/20 # Last observation: 2007/06/07 # Chi-squared of fit: 674.09 DOF: 186 RMS: 0.47 # Min/Max residuals: -1.33 1.81 # Exact a, adot, b, bdot, g, gdot: 3.197299E-05 1.435579E-01 6.284174E-07 2.675713E-03 7.591285E-02 -9.790423E-04 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 13.583553 -157.380574 0.380233 0.217077 -0.899121 2451989.044373 # Heliocentric elements and errors Epoch: 2451990.5000 = 2001/03/22 Mean Anomaly: 355.17794 +/- 0.000 Argument of Peri: 92.62882 +/- 0.000 Long of Asc Node: 117.36894 +/- 0.000 Inclination: 12.77534 +/- 0.000 Eccentricity: 0.27432071 +/- 0.0000 Semi-Major Axis: 19.34409174 +/- 0.0000 Time of Perihelion: 2452406.7471 +/- 0.0 Perihelion: 14.03760673 +/- 0.0000 Aphelion: 24.65057675 +/- 0.0000 Period (y) 85.0806 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -12.81550397 +/- 0.0000 Ecliptic Y -4.92468323 +/- 0.0000 Ecliptic Z 3.09388502 +/- 0.0000 Ecliptic XDOT 0.00203558 +/- 0.0000 Ecliptic YDOT -0.00475440 +/- 0.0000 Ecliptic ZDOT 0.00008570 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 14.07345495 +/- 0.0000 Geocenter to KBO 13.17303727 +/- 0.0000 # Hcoef: 8.59
The following table shows the complete astrometric record for 83982. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (83982) followed by the observatory code and reference code for the source of the astrometry.
2001 03 20.54363 13 43 45.15 +03 49 43.3 19.2R 83982 608 Cf7372 2001 03 20.55406 13 43 45.11 +03 49 43.7 19.1R 83982 608 Cf7372 2001 03 20.56450 13 43 44.94 +03 49 44.1 19.4R 83982 608 Cf7372 2001 04 16.228450 13 38 50.481 +04 24 54.59 20.5V 83982 645 Ci0084 2001 04 16.231922 13 38 50.436 +04 24 54.79 21.7 83982 645 Ci0084 2001 04 26.52804 13 36 50.54 +04 35 23.2 19.4R 83982 608 Cf7372 2002 01 15.65472 14 15 21.76 -00 05 41.0 19.5R 83982 608 Cf7372 2002 01 15.66507 14 15 21.81 -00 05 40.4 19.6R 83982 608 Cf7372 2002 04 12.34272 14 10 43.80 +01 24 45.5 20.2 83982 644 Cf5894 2002 04 12.35780 14 10 43.62 +01 24 46.4 20.1 83982 644 Cf5894 2002 04 12.37294 14 10 43.43 +01 24 48.0 20.2 83982 644 Cf5894 2002 04 13.39383 14 10 31.76 +01 26 01.1 19.9 83982 644 Cf5894 2002 04 13.42006 14 10 31.41 +01 26 03.0 20.3 83982 644 Cf5894 2002 04 13.44651 14 10 31.12 +01 26 04.7 20.5 83982 644 Cf5894 2002 04 14.34023 14 10 20.78 +01 27 08.5 19.8R 83982 649 Cf5894 2002 04 14.38282 14 10 20.30 +01 27 11.2 19.9R 83982 649 Cf5894 2002 04 14.41936 14 10 19.85 +01 27 14.0 20.1R 83982 649 Cf5894 2002 04 15.58722 14 10 06.32 +01 28 36.9 83982 474 Cf5894 2002 04 15.60709 14 10 06.11 +01 28 39.0 83982 474 Cf5894 2002 04 15.62728 14 10 05.84 +01 28 39.6 19. R 83982 474 Cf5894 2002 04 15.97166 14 10 01.86 +01 29 02.6 83982 557 Cf5894 2002 04 16.01109 14 10 01.42 +01 29 04.7 83982 557 Cf5894 2002 04 16.19005 14 09 59.37 +01 29 16.9 18.6R 83982 649 Cf5894 2002 04 16.31865 14 09 57.81 +01 29 25.7 19.0R 83982 649 Cf5894 2002 04 16.42280 14 09 56.64 +01 29 34.8 19.6R 83982 711 Cf5894 2002 04 16.43061 14 09 56.51 +01 29 34.4 19.5R 83982 711 Cf5894 2002 04 16.43830 14 09 56.39 +01 29 35.1 19.8R 83982 711 Cf5894 2002 04 16.53692 14 09 55.33 +01 29 42.9 83982 474 Cf5894 2002 04 16.56050 14 09 54.97 +01 29 44.2 19.7R 83982 474 Cf5894 2002 04 16.57720 14 09 54.81 +01 29 45.6 19.9R 83982 474 Cf5894 2002 04 19.30314 14 09 22.82 +01 32 48.2 83982 658 Cf5894 2002 04 19.36397 14 09 22.08 +01 32 52.3 83982 658 Cf5894 2002 04 19.43230 14 09 21.29 +01 32 56.9 83982 658 Cf5894 2002 05 12.29806 14 04 55.97 +01 52 42.8 20.3 83982 644 Cf5102 2002 05 12.31823 14 04 55.78 +01 52 43.2 20.7 83982 644 Cf5102 2002 05 12.33903 14 04 55.51 +01 52 43.9 20.7 83982 644 Cf5102 2002 05 31.95975 14 01 45.57 +01 58 56.3 19.7R 83982 621 Cf7372 2002 05 31.97512 14 01 45.45 +01 58 56.7 83982 621 Cf7372 2002 06 01.43281 14 01 41.689 +01 58 57.36 19.8R 83982 568 Cf7372 2002 06 01.46587 14 01 41.411 +01 58 57.31 19.9R 83982 568 Cf7372 2002 06 01.91594 14 01 37.95 +01 58 57.8 83982 246 Cf7372 2002 06 01.91772 14 01 37.86 +01 58 58.0 83982 246 Cf7372 2002 06 01.92267 14 01 37.84 +01 58 57.7 83982 246 Cf7372 2002 06 01.95374 14 01 37.59 +01 58 57.5 83982 621 Cf7372 2002 06 01.96884 14 01 37.44 +01 58 58.2 83982 621 Cf7372 2003 04 01.12442 14 43 40.33 -01 44 56.3 83982 621 Ch6142 2003 04 07.10880 14 42 42.00 -01 37 41.8 83982 621 Ch6142 2003 04 07.12046 14 42 41.92 -01 37 41.1 19.6R 83982 621 Ch6142 2003 04 07.13212 14 42 41.78 -01 37 40.4 83982 621 Ch6142 2003 04 08.05661 14 42 32.30 -01 36 34.6 83982 621 Ch6142 2003 04 08.06828 14 42 32.19 -01 36 33.3 83982 621 Ch6142 2003 04 08.07993 14 42 32.08 -01 36 32.1 19.8R 83982 621 Ch6142 2003 05 27.16735 14 33 12.14 -00 55 45.8 20.5V 83982 691 Ci0084 2003 05 27.19524 14 33 11.82 -00 55 45.5 20.8V 83982 691 Ci0084 2003 05 27.22385 14 33 11.52 -00 55 45.0 20.6V 83982 691 Ci0084 2003 06 01.24545 14 32 21.64 -00 54 33.6 21.9V 83982 691 Ci0084 2003 06 01.27447 14 32 21.34 -00 54 33.1 21.4V 83982 691 Ci0084 2003 06 01.30089 14 32 21.09 -00 54 32.8 21.3V 83982 691 Ci0084 2004 03 15.33706 15 15 54.45 -04 52 04.0 20.3V 83982 291 Ck1164 2004 03 15.39044 15 15 54.23 -04 52 00.5 20.6V 83982 291 Ck1164 2004 03 15.44991 15 15 53.93 -04 51 57.3 20.4V 83982 291 Ck1164 2004 03 24.13482 15 15 07.18 -04 42 58.7 20. R 83982 621 Ck3836 2004 03 26.15699 15 14 53.77 -04 40 49.3 20. R 83982 621 Ck3836 2004 03 27.14765 15 14 46.86 -04 39 45.7 20. R 83982 621 Ck3836 2004 04 23.39569 15 10 27.34 -04 11 15.3 20.5V 83982 691 Ck6212 2004 04 23.43521 15 10 26.89 -04 11 12.9 20.5V 83982 691 Ck6212 2004 04 23.48530 15 10 26.31 -04 11 10.3 20.7V 83982 691 Ck6212 2004 05 14.24278 15 06 19.12 -03 54 16.7 20.4R 83982 701 Ck8019 2004 05 14.26836 15 06 18.75 -03 54 15.7 20.1R 83982 701 Ck8019 2004 05 14.29414 15 06 18.45 -03 54 14.7 20.2R 83982 701 Ck8019 2005 05 16.29298 15 36 38.27 -06 38 45.1 20.1V 83982 691 Cn5279 2005 05 16.31037 15 36 38.07 -06 38 44.4 20.2V 83982 691 Cn5279 2005 05 16.32782 15 36 37.83 -06 38 43.6 20.2V 83982 691 Cn5279 2005 06 05.21624 15 32 41.97 -06 30 33.7 20.3V 83982 691 Cn6418 2005 06 05.23363 15 32 41.76 -06 30 33.4 20.2V 83982 691 Cn6418 2005 06 05.25441 15 32 41.52 -06 30 33.3 20.2V 83982 691 Cn6418 2006 04 26.08149 16 10 48.36 -09 25 48.7 20. R 83982 461 Cs6675 2006 04 26.08727 16 10 48.32 -09 25 48.4 83982 461 Cs6675 2006 05 01.42160 16 09 52.608 -09 22 07.36 19.6R 83982 500 2006 05 01.42600 16 09 52.550 -09 22 07.14 83982 500 2006 05 01.43040 16 09 52.502 -09 22 06.95 83982 500 2006 05 01.43480 16 09 52.455 -09 22 06.77 83982 500 2006 05 18.03152 16 06 39.71 -09 12 09.9 19. R 83982 461 Cs6675 2006 05 18.04020 16 06 39.64 -09 12 10.1 83982 461 Cs6675 2006 05 23.29983 16 05 35.29 -09 09 42.9 20.2V 83982 691 Cr2598 2006 05 23.31706 16 05 35.08 -09 09 42.4 20.1V 83982 691 Cr2598 2006 05 23.33437 16 05 34.85 -09 09 42.0 20.2V 83982 691 Cr2598 2006 06 16.24897 16 00 52.39 -09 03 51.5 20.3V 83982 691 Cr4401 2006 06 16.26969 16 00 52.14 -09 03 51.5 20.4V 83982 691 Cr4401 2006 06 16.28701 16 00 51.95 -09 03 51.4 20.5V 83982 691 Cr4401 2007 03 05.13782 16 42 44.94 -12 10 54.3 20. R 83982 461 Cu9821 2007 04 27.04583 16 40 14.68 -11 42 24.0 20. R 83982 461 Cu8620 2007 04 27.05452 16 40 14.61 -11 42 23.8 83982 461 Cu8620 2007 05 12.08445 16 37 40.74 -11 34 37.1 20.1R 83982 213 Cu9821 2007 06 07.92115 16 32 17.54 -11 25 50.8 19.5R 83982 461 Cv0655 2007 06 07.93898 16 32 17.32 -11 25 50.9 83982 461 Cv0655
The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.
1 0.0000 0.00 -0.51 0.00 0.41 2 0.0000 0.00 0.67 0.00 -0.42 3 0.0001 0.00 -0.32 0.00 -0.92 4 0.0731 0.00 -0.12 0.00 -0.18 5 0.0731 0.00 -0.17 0.00 -0.21 6 0.1013 0.00 -1.33 0.00 1.64 7 0.8244 0.00 0.28 0.00 -0.40 8 0.8244 0.00 -0.14 0.00 0.04 9 1.0617 0.00 0.34 0.00 0.15 10 1.0618 0.00 0.28 0.00 -0.04 11 1.0618 0.00 0.08 0.00 0.47 12 1.0646 0.00 0.80 0.00 0.06 13 1.0647 0.00 0.16 0.00 0.08 14 1.0648 0.00 0.46 0.00 -0.11 15 1.0672 0.00 -0.13 0.00 0.14 16 1.0673 0.00 0.19 0.00 -0.17 17 1.0674 0.00 -0.13 0.00 0.04 18 1.0706 0.00 -0.16 0.00 0.06 19 1.0707 0.00 0.22 0.00 0.78 20 1.0707 0.00 -0.25 0.00 -0.03 21 1.0717 0.00 -0.08 0.00 0.02 22 1.0718 0.00 0.32 0.00 -0.62 23 1.0723 0.00 0.48 0.00 -0.90 24 1.0726 0.00 -0.02 0.00 -0.98 25 1.0729 0.00 0.92 0.00 0.86 26 1.0729 0.00 0.36 0.00 -0.08 27 1.0729 0.00 -0.07 0.00 0.09 28 1.0732 0.00 0.84 0.00 0.29 29 1.0733 0.00 -0.35 0.00 -0.03 30 1.0733 0.00 0.22 0.00 0.22 31 1.0808 0.00 -0.29 0.00 -0.10 32 1.0810 0.00 -0.48 0.00 -0.02 33 1.0811 0.00 -0.07 0.00 0.07 34 1.1437 0.00 0.53 0.00 0.35 35 1.1438 0.00 1.06 0.00 0.03 36 1.1439 0.00 0.50 0.00 0.00 37 1.1976 0.00 0.29 0.00 -0.46 38 1.1976 0.00 0.40 0.00 -0.09 39 1.1989 0.00 -0.33 0.00 -0.41 40 1.1990 0.00 -0.42 0.00 -0.50 41 1.2002 0.00 1.36 0.00 -0.02 42 1.2002 0.00 0.23 0.00 0.18 43 1.2002 0.00 0.53 0.00 -0.12 44 1.2003 0.00 0.51 0.00 -0.31 45 1.2003 0.00 0.09 0.00 0.39 46 2.0303 0.00 1.23 0.00 -0.46 47 2.0467 0.00 -0.34 0.00 0.02 48 2.0468 0.00 0.27 0.00 -0.11 49 2.0468 0.00 -0.02 0.00 -0.25 50 2.0493 0.00 -0.35 0.00 -0.55 51 2.0493 0.00 -0.17 0.00 -0.08 52 2.0494 0.00 0.02 0.00 0.28 53 2.1838 0.00 0.47 0.00 0.18 54 2.1839 0.00 0.07 0.00 -0.03 55 2.1839 0.00 0.08 0.00 -0.05 56 2.1977 0.00 0.32 0.00 0.10 57 2.1978 0.00 0.08 0.00 0.30 58 2.1978 0.00 0.20 0.00 0.34 59 2.9864 0.00 -0.29 0.00 0.24 60 2.9866 0.00 -0.01 0.00 0.54 61 2.9867 0.00 -0.47 0.00 0.16 62 3.0105 0.00 -0.47 0.00 -0.67 63 3.0161 0.00 -0.02 0.00 -0.37 64 3.0188 0.00 0.01 0.00 -0.32 65 3.0934 0.00 0.03 0.00 -0.08 66 3.0935 0.00 0.16 0.00 0.04 67 3.0936 0.00 0.16 0.00 -0.25 68 3.1504 0.00 0.33 0.00 -0.56 69 3.1505 0.00 -0.51 0.00 -0.55 70 3.1506 0.00 -0.27 0.00 -0.54 71 4.1554 0.00 0.05 0.00 -0.19 72 4.1554 0.00 0.29 0.00 -0.10 73 4.1555 0.00 -0.05 0.00 0.08 74 4.2099 0.00 0.07 0.00 -0.17 75 4.2100 0.00 -0.11 0.00 -0.10 76 4.2100 0.00 -0.15 0.00 -0.27 77 5.0994 0.00 0.36 0.00 0.31 78 5.0994 0.00 0.65 0.00 0.37 79 5.1140 0.00 0.91 0.00 -1.06 80 5.1140 0.00 0.75 0.00 -1.02 81 5.1140 0.00 0.75 0.00 -1.01 82 5.1140 0.00 0.76 0.00 -1.01 83 5.1594 0.00 -0.21 0.00 1.81 84 5.1595 0.00 0.35 0.00 1.35 85 5.1739 0.00 -0.02 0.00 -0.32 86 5.1739 0.00 0.06 0.00 -0.27 87 5.1740 0.00 -0.14 0.00 -0.32 88 5.2394 0.00 0.41 0.00 0.03 89 5.2395 0.00 0.10 0.00 -0.01 90 5.2395 0.00 0.12 0.00 0.05 91 5.9565 0.00 0.11 0.00 0.03 92 6.1013 0.00 -0.23 0.00 -0.32 93 6.1013 0.00 -0.08 0.00 -0.41 94 6.1425 0.00 1.17 0.00 -0.06 95 6.2160 0.00 0.07 0.00 -0.20 96 6.2160 0.00 0.08 0.00 -0.47
The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.
83982 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 19.302 19.302 19.302 ecceobj 0.273 0.273 0.273 incobj 12.777 12.777 12.777 qmin 13.463 13.202 13.569 qmax 26.824 25.638 27.383 amean 19.454 19.364 20.042 amin 18.863 18.773 18.867 amax 20.254 19.671 20.990 emean 0.294 0.292 0.302 emin 0.265 0.265 0.265 emax 0.324 0.307 0.326 imean 10.134 10.312 10.517 imin 9.376 9.618 9.899 imax 11.451 11.563 11.451 fracstop 0.006 0.007 0.008 cjmean 3.058 3.062 3.030 libcent 0 -180.0 -180.0 -180.0 libamp 0 -180.0 -180.0 -180.0 libcent 1 -180.0 -180.0 -180.0 libamp 1 -180.0 -180.0 -180.0 libcent 2 -180.0 -180.0 -180.0 libamp 2 -180.0 -180.0 -180.0 libcent 3 -180.0 -180.0 -180.0 libamp 3 -180.0 -180.0 -180.0 libcent 4 -180.0 -180.0 -180.0 libamp 4 -180.0 -180.0 -180.0 kozaimean 162.3 165.2 178.5 kozaiamp 76.0 74.7 89.7