The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.
# Object: 483002 # Created Thu Oct 19 01:36:53 2017 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 86 observations of 86 # Arc: 18.02y # First observation: 1998/09/19 # Last observation: 2016/09/26 # Chi-squared of fit: 80.31 DOF: 166 RMS: 0.17 # Min/Max residuals: -1.59 0.32 # Exact a, adot, b, bdot, g, gdot: 1.114384E-05 1.645163E-02 -8.891161E-06 -1.265505E-02 2.220759E-02 -1.550987E-03 # 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 -5.048468 12.661231 0.281383 -0.084326 -0.951878 2451075.836400 # Heliocentric elements and errors Epoch: 2451076.5000 = 1998/09/20 Mean Anomaly: 294.43067 +/- 0.000 Argument of Peri: 262.83911 +/- 0.000 Long of Asc Node: 185.89584 +/- 0.000 Inclination: 37.76374 +/- 0.000 Eccentricity: 0.08450634 +/- 0.0000 Semi-Major Axis: 47.35076507 +/- 0.0000 Time of Perihelion: 2472752.8999 +/- 0.0 Perihelion: 43.34932530 +/- 0.0000 Aphelion: 51.35220484 +/- 0.0000 Period (y) 325.8357 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 44.76651775 +/- 0.0000 Ecliptic Y 9.76573794 +/- 0.0000 Ecliptic Z -3.96291966 +/- 0.0000 Ecliptic XDOT -0.00076424 +/- 0.0000 Ecliptic YDOT 0.00191615 +/- 0.0000 Ecliptic ZDOT -0.00153734 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.99043771 +/- 0.0000 Geocenter to KBO 45.02972305 +/- 0.0000 # Hcoef: 5.73
The following table shows the complete astrometric record for 483002. 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 (483002) followed by the observatory code and reference code for the source of the astrometry.
1998 09 19.335669 00 54 26.62 +00 21 00.7 21.9V 483002 645 C~25Rc 1998 09 19.336498 00 54 26.62 +00 21 00.5 21.8V 483002 645 C~25Rc 1998 09 19.338986 00 54 26.60 +00 21 00.5 22.2V 483002 645 C~25Rc 2000 10 02.396215 01 02 48.70 -00 22 58.0 21.7V 483002 645 C~25Rc 2000 10 02.397044 01 02 48.69 -00 22 57.8 21.5V 483002 645 C~25Rc 2000 10 02.399532 01 02 48.69 -00 22 57.9 22.3V 483002 645 C~25Rc 2001 10 25.329631 01 05 54.95 -00 53 22.0 21.8V 483002 645 C~25Rc 2001 10 25.330460 01 05 54.94 -00 53 21.9 21.6V 483002 645 C~25Rc 2001 10 25.332948 01 05 54.93 -00 53 22.0 22.5V 483002 645 C~25Rc 2001 11 12.206748 01 04 48.70 -01 01 06.4 22.0V 483002 645 C~25Rc 2001 11 12.207578 01 04 48.69 -01 01 06.4 21.8V 483002 645 C~25Rc 2001 11 12.210066 01 04 48.66 -01 01 06.6 22.7V 483002 645 C~25Rc 2001 11 18.242332 01 04 29.31 -01 03 12.6 22.0V 483002 645 C~25Rc 2001 11 18.243161 01 04 29.32 -01 03 12.6 21.7V 483002 645 C~25Rc 2001 11 18.245649 01 04 29.30 -01 03 12.7 22.4V 483002 645 C~25Rc 2002 09 05.365060 01 13 48.74 -00 43 48.1 21.3V 483002 645 C~25Rc 2002 09 05.365890 01 13 48.73 -00 43 48.1 21.1V 483002 645 C~25Rc 2002 09 05.368377 01 13 48.73 -00 43 48.0 21.7V 483002 645 C~25Rc 2002 10 11.366361 01 11 32.51 -01 04 21.4 21.5V 483002 645 C~25Rc 2002 10 11.367190 01 11 32.51 -01 04 21.5 21.6V 483002 645 C~25Rc 2002 10 11.369678 01 11 32.50 -01 04 21.6 22.1V 483002 645 C~25Rc 2002 10 30.252894 01 10 15.65 -01 13 57.6 21.9V 483002 645 C~25Rc 2002 10 30.253723 01 10 15.64 -01 13 57.8 21.7V 483002 645 C~25Rc 2002 10 30.256211 01 10 15.63 -01 13 57.7 22.0V 483002 645 C~25Rc 2003 09 28.342972 01 17 06.90 -01 15 17.0 21.9V 483002 645 C~25Rc 2003 09 28.343801 01 17 06.90 -01 15 17.1 21.8V 483002 645 C~25Rc 2003 09 28.346289 01 17 06.88 -01 15 17.2 22.2V 483002 645 C~25Rc 2008 10 31.317136 01 38 21.47 -03 05 44.7 21.9V 483002 645 C~25Rc 2008 10 31.317965 01 38 21.46 -03 05 44.7 22.0V 483002 645 C~25Rc 2008 10 31.320453 01 38 21.45 -03 05 44.7 22.3V 483002 645 C~25Rc 2013 11 03.07596 02 02 14.87 -04 38 44.9 483002 W84 C~2Jbt 2013 11 03.13835 02 02 14.60 -04 38 46.5 21.9r 483002 W84 C~2Jbt 2013 11 03.24160 02 02 14.15 -04 38 49.2 483002 W84 C~2Jbt 2014 08 19.376470 02 11 13.93 -04 12 43.8 483002 W84 C~1YfK 2014 08 19.377836 02 11 13.93 -04 12 43.8 483002 W84 C~1YfK 2014 09 15.306146 02 10 18.70 -04 29 15.8 21.7z 483002 W84 C~1wzB 2014 12 16.150266 02 04 33.15 -05 06 49.8 22.5g 483002 W84 C~1wzB 2015 01 16.070810 02 03 55.16 -05 02 15.0 22.1r 483002 W84 C~1wzB 2015 01 19.064028 02 03 55.77 -05 01 20.3 22.5g 483002 W84 C~1wzB 2015 01 20.062072 02 03 56.16 -05 01 01.1 22.4r 483002 W84 C~1wzB 2015 01 21.051447 02 03 56.61 -05 00 41.7 22.2i 483002 W84 C~1wzB 2015 01 21.052812 02 03 56.61 -05 00 41.8 22.5z 483002 W84 C~1wzB 2015 08 14.419763 02 16 07.16 -04 27 43.4 22.5g 483002 W84 C~1YfK 2015 08 14.421968 02 16 07.16 -04 27 43.5 21.9r 483002 W84 C~1YfK 2015 08 14.424329 02 16 07.16 -04 27 43.6 22.1i 483002 W84 C~1YfK 2015 08 14.428137 02 16 07.15 -04 27 43.5 21.9z 483002 W84 C~1YfK 2015 08 18.268154 02 16 04.53 -04 29 53.2 22.6g 483002 W84 C~1YfK 2015 08 18.270359 02 16 04.54 -04 29 53.2 22.1r 483002 W84 C~1YfK 2015 08 18.272720 02 16 04.53 -04 29 53.3 22.1i 483002 W84 C~1YfK 2015 08 18.276516 02 16 04.52 -04 29 53.5 22.1z 483002 W84 C~1YfK 2015 08 22.265110 02 16 00.52 -04 32 12.4 22.6g 483002 W84 C~1YfK 2015 08 22.267303 02 16 00.52 -04 32 12.5 21.9r 483002 W84 C~1YfK 2015 08 22.269653 02 16 00.52 -04 32 12.4 22.2i 483002 W84 C~1YfK 2015 08 22.273449 02 16 00.51 -04 32 12.5 21.7z 483002 W84 C~1YfK 2015 09 03.229236 02 15 41.08 -04 39 30.7 22.0i 483002 W84 C~1YfK 2015 09 03.233021 02 15 41.07 -04 39 30.9 22.0z 483002 W84 C~1YfK 2015 09 11.369149 02 15 21.89 -04 44 41.0 22.6g 483002 W84 C~1YfK 2015 09 11.371354 02 15 21.87 -04 44 41.1 22.0r 483002 W84 C~1YfK 2015 09 11.373727 02 15 21.87 -04 44 41.1 21.9i 483002 W84 C~1YfK 2015 09 11.377535 02 15 21.86 -04 44 41.4 22.0z 483002 W84 C~1YfK 2015 09 21.211510 02 14 52.91 -04 51 00.5 22.5g 483002 W84 C~1YfK 2015 09 21.213750 02 14 52.90 -04 51 00.6 21.9r 483002 W84 C~1YfK 2015 09 21.216134 02 14 52.90 -04 51 00.7 21.7i 483002 W84 C~1YfK 2015 09 21.219977 02 14 52.88 -04 51 01.0 21.9z 483002 W84 C~1YfK 2015 10 06.281047 02 13 58.65 -05 00 26.7 22.3g 483002 W84 C~1YfK 2015 10 06.283264 02 13 58.64 -05 00 26.8 21.8r 483002 W84 C~1YfK 2015 10 06.285613 02 13 58.63 -05 00 27.0 21.9i 483002 W84 C~1YfK 2015 12 04.068044 02 09 59.06 -05 24 13.5 21.8i 483002 W84 C~1iHJ 2015 12 18.138877 02 09 18.43 -05 25 03.8 21.8z 483002 W84 C~1iHJ 2016 08 24.256944 02 20 47.64 -04 51 43.7 21.8z 483002 W84 C~2Bl0 2016 08 25.386748 02 20 46.12 -04 52 24.9 22.1r 483002 W84 C~2Bl0 2016 08 25.388808 02 20 46.12 -04 52 25.1 21.9i 483002 W84 C~2Bl0 2016 08 25.391458 02 20 46.12 -04 52 25.3 21.9z 483002 W84 C~2Bl0 2016 08 29.244745 02 20 40.26 -04 54 48.0 21.9r 483002 W84 C~2Bl0 2016 08 29.246817 02 20 40.25 -04 54 48.1 21.9i 483002 W84 C~2Bl0 2016 08 29.249444 02 20 40.24 -04 54 48.2 21.8z 483002 W84 C~2Bl0 2016 09 02.347257 02 20 32.76 -04 57 23.2 22.0r 483002 W84 C~2Bl0 2016 09 02.349317 02 20 32.76 -04 57 23.3 21.9i 483002 W84 C~2Bl0 2016 09 02.354618 02 20 32.75 -04 57 23.5 21.8z 483002 W84 C~2Bl0 2016 09 06.234456 02 20 24.52 -04 59 52.2 22.0r 483002 W84 C~2Bl0 2016 09 06.236528 02 20 24.51 -04 59 52.3 22.0i 483002 W84 C~2Bl0 2016 09 06.239167 02 20 24.51 -04 59 52.4 22.0z 483002 W84 C~2Bl0 2016 09 22.172153 02 19 40.12 -05 10 11.0 21.8r 483002 W84 C~2Bl0 2016 09 22.174213 02 19 40.11 -05 10 11.1 21.7i 483002 W84 C~2Bl0 2016 09 22.176863 02 19 40.10 -05 10 11.2 21.8z 483002 W84 C~2Bl0 2016 09 26.230694 02 19 26.41 -05 12 47.2 21.8z 483002 W84 C~2Bl0
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 -0.15 0.00 -1.59 2 0.0000 0.00 0.21 0.00 -0.12 3 0.0000 0.00 0.06 0.00 -0.04 4 2.0371 0.00 0.15 0.00 -0.09 5 2.0371 0.00 0.06 0.00 0.14 6 2.0371 0.00 0.21 0.00 0.12 7 3.0992 0.00 0.15 0.00 -0.04 8 3.0992 0.00 0.05 0.00 0.08 9 3.0992 0.00 0.05 0.00 0.05 10 3.1482 0.00 0.09 0.00 -0.06 11 3.1482 0.00 -0.02 0.00 -0.04 12 3.1482 0.00 -0.34 0.00 -0.18 13 3.1647 0.00 -0.05 0.00 0.02 14 3.1647 0.00 0.14 0.00 0.04 15 3.1647 0.00 -0.04 0.00 -0.01 16 3.9618 0.00 0.03 0.00 0.00 17 3.9618 0.00 -0.08 0.00 0.03 18 3.9618 0.00 0.04 0.00 0.21 19 4.0603 0.00 -0.04 0.00 0.01 20 4.0603 0.00 0.01 0.00 -0.07 21 4.0603 0.00 0.02 0.00 -0.08 22 4.1120 0.00 -0.08 0.00 0.18 23 4.1120 0.00 -0.18 0.00 -0.00 24 4.1120 0.00 -0.18 0.00 0.17 25 5.0240 0.00 0.17 0.00 0.15 26 5.0240 0.00 0.22 0.00 0.08 27 5.0240 0.00 0.07 0.00 0.07 28 10.1163 0.00 0.08 0.00 -0.02 29 10.1163 0.00 -0.02 0.00 0.00 30 10.1163 0.00 -0.01 0.00 0.07 31 15.1232 0.00 0.29 0.00 -0.03 32 15.1233 0.00 0.29 0.00 -0.03 33 15.1236 0.00 0.24 0.00 -0.08 34 15.9152 0.00 0.05 0.00 0.12 35 15.9152 0.00 0.07 0.00 0.17 36 15.9890 0.00 0.07 0.00 0.11 37 16.2404 0.00 0.14 0.00 0.13 38 16.3251 0.00 0.08 0.00 0.05 39 16.3333 0.00 -0.01 0.00 0.11 40 16.3360 0.00 0.12 0.00 0.13 41 16.3387 0.00 -0.11 0.00 0.04 42 16.3387 0.00 -0.12 0.00 -0.08 43 16.9010 0.00 0.17 0.00 -0.07 44 16.9010 0.00 0.19 0.00 -0.10 45 16.9010 0.00 0.21 0.00 -0.12 46 16.9010 0.00 0.10 0.00 0.10 47 16.9115 0.00 0.11 0.00 -0.15 48 16.9115 0.00 0.29 0.00 -0.08 49 16.9115 0.00 0.17 0.00 -0.10 50 16.9115 0.00 0.07 0.00 -0.17 51 16.9225 0.00 0.11 0.00 -0.10 52 16.9225 0.00 0.15 0.00 -0.12 53 16.9225 0.00 0.19 0.00 0.06 54 16.9225 0.00 0.11 0.00 0.10 55 16.9552 0.00 -0.14 0.00 0.02 56 16.9552 0.00 -0.17 0.00 -0.04 57 16.9775 0.00 0.04 0.00 0.24 58 16.9775 0.00 -0.17 0.00 0.23 59 16.9775 0.00 -0.08 0.00 0.32 60 16.9775 0.00 -0.07 0.00 0.17 61 17.0045 0.00 -0.19 0.00 0.12 62 17.0045 0.00 -0.23 0.00 0.11 63 17.0045 0.00 -0.12 0.00 0.10 64 17.0045 0.00 -0.23 0.00 -0.05 65 17.0457 0.00 0.06 0.00 -0.03 66 17.0457 0.00 0.05 0.00 -0.05 67 17.0457 0.00 0.04 0.00 -0.17 68 17.2067 0.00 0.16 0.00 0.11 69 17.2452 0.00 0.01 0.00 0.15 70 17.9300 0.00 0.22 0.00 0.06 71 17.9331 0.00 0.01 0.00 0.17 72 17.9331 0.00 0.06 0.00 0.04 73 17.9331 0.00 0.12 0.00 -0.06 74 17.9436 0.00 -0.02 0.00 0.11 75 17.9436 0.00 -0.11 0.00 0.09 76 17.9436 0.00 -0.20 0.00 0.09 77 17.9549 0.00 -0.02 0.00 -0.03 78 17.9549 0.00 0.05 0.00 -0.06 79 17.9549 0.00 0.06 0.00 -0.05 80 17.9655 0.00 0.02 0.00 -0.00 81 17.9655 0.00 -0.06 0.00 -0.02 82 17.9655 0.00 0.03 0.00 -0.02 83 18.0091 0.00 -0.03 0.00 0.03 84 18.0091 0.00 -0.08 0.00 0.01 85 18.0091 0.00 -0.09 0.00 0.02 86 18.0202 0.00 0.03 0.00 -0.04
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.
483002 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 47.366 47.366 47.366 ecceobj 0.087 0.087 0.087 incobj 37.776 37.776 37.776 qmin 42.569 42.560 42.572 qmax 51.811 51.810 51.824 amean 47.074 47.074 47.074 amin 46.704 46.704 46.707 amax 47.468 47.467 47.468 emean 0.080 0.080 0.080 emin 0.069 0.069 0.069 emax 0.092 0.092 0.092 imean 37.669 37.669 37.669 imin 37.465 37.466 37.469 imax 37.891 37.892 37.893 excite_mean 0.616 0.616 0.616 fracstop 1.000 1.000 1.000 cjmean 2.613 2.613 2.613 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 200.8 200.9 200.8 kozaiamp 180.0 180.0 180.0