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: 47171 # Created Fri May 2 02:36:17 2008 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 89 observations of 91 # Arc: 31.20y # First observation: 1974/06/18 # Last observation: 2005/08/31 # Chi-squared of fit: 872.62 DOF: 172 RMS: 0.55 # Min/Max residuals: -2.07 1.97 # Exact a, adot, b, bdot, g, gdot: 1.486171E-05 2.914935E-02 -3.436718E-06 -3.672244E-03 2.787898E-02 -5.874893E-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 -4.344735 -51.654568 0.666964 -0.057969 -0.763002 2442217.203753 # Heliocentric elements and errors Epoch: 2442215.5000 = 1974/06/17 Mean Anomaly: 301.87082 +/- 0.000 Argument of Peri: 293.76294 +/- 0.000 Long of Asc Node: 97.09805 +/- 0.000 Inclination: 8.40917 +/- 0.000 Eccentricity: 0.22748119 +/- 0.0000 Semi-Major Axis: 39.66788470 +/- 0.0000 Time of Perihelion: 2456950.4512 +/- 0.0 Perihelion: 30.64418711 +/- 0.0000 Aphelion: 48.69158229 +/- 0.0000 Period (y) 249.8428 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 22.14417958 +/- 0.0000 Ecliptic Y -29.06570188 +/- 0.0000 Ecliptic Z -2.71755448 +/- 0.0000 Ecliptic XDOT 0.00187269 +/- 0.0000 Ecliptic YDOT 0.00225509 +/- 0.0000 Ecliptic ZDOT -0.00031591 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 36.64115737 +/- 0.0000 Geocenter to KBO 35.86947735 +/- 0.0000 # Hcoef: 4.71
The following table shows the complete astrometric record for 47171. 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 (47171) followed by the observatory code and reference code for the source of the astrometry.
1974 06 18.70323 20 47 56.82 -22 22 10.6 47171 260 x2955 1976 05 30.76340 21 03 18.64 -21 44 05.7 47171 260 x2955 1976 09 16.47271 20 55 00.55 -22 23 51.2 47171 260 x2955 1999 09 30.34909 23 57 54.53 -09 31 19.7 20.0R 47171 695 Ca8580 1999 09 30.35235 23 57 54.50 -09 31 19.7 20.0R 47171 695 Ca8580 1999 10 01.32043 23 57 49.03 -09 31 52.2 20.0R 47171 695 Ca8580 1999 10 01.32370 23 57 49.00 -09 31 52.1 20.0R 47171 695 Ca8580 1999 10 02.26968 23 57 43.62 -09 32 23.4 20.0R 47171 695 Ca8580 1999 10 03.36963 23 57 37.50 -09 33 01.9 20.0R 47171 695 Ca8580 1999 10 03.37289 23 57 37.46 -09 33 00.7 20.0R 47171 695 Ca8580 1999 12 25.08271 23 54 06.56 -09 37 35.4 20.0R 47171 684 Ca8580 1999 12 25.10721 23 54 06.65 -09 37 35.0 47171 684 Ca8580 1999 12 27.08697 23 54 10.63 -09 36 37.1 47171 684 Ca8580 1999 12 27.11015 23 54 10.63 -09 36 35.0 47171 684 Ca8580 2000 01 02.08506 23 54 25.78 -09 33 17.5 20.1R 47171 697 Ca8580 2000 01 03.08646 23 54 28.72 -09 32 42.5 20.2R 47171 697 Ca8580 2000 01 04.09209 23 54 31.79 -09 32 06.7 20.1R 47171 697 Ca8580 2000 07 29.56422 00 11 20.22 -08 00 43.5 19.3R 47171 474 Cb7620 2000 07 29.63991 00 11 20.06 -08 00 45.6 19.5R 47171 474 Cb7620 2000 07 29.71156 00 11 19.84 -08 00 47.6 18.2R 47171 474 Cb7620 2000 07 30.58074 00 11 17.66 -08 01 15.4 18.7R 47171 474 Cb7620 2000 07 30.58770 00 11 17.63 -08 01 15.4 19.2R 47171 474 Cb7620 2000 07 30.59387 00 11 17.55 -08 01 15.3 19.1R 47171 474 Cb7620 2000 07 30.66667 00 11 17.39 -08 01 17.4 19.2R 47171 474 Cb7620 2000 08 26.67578 00 09 34.24 -08 17 47.3 20.4V 47171 360 Cb7620 2000 08 26.71120 00 09 33.98 -08 17 48.7 47171 360 Cb7620 2000 08 26.72431 00 09 33.98 -08 17 49.3 47171 360 Cb7620 2000 09 05.21961 00 08 45.42 -08 24 09.2 21.4 47171 309 Cc7555 2000 09 05.22089 00 08 45.42 -08 24 09.3 20.4V 47171 309 Cc7555 2000 09 05.22207 00 08 45.41 -08 24 09.4 47171 309 Cc7555 2000 09 05.22324 00 08 45.41 -08 24 09.4 47171 309 Cc7555 2000 09 05.25822 00 08 45.22 -08 24 10.8 21.4 47171 309 Cc7555 2000 09 05.25951 00 08 45.22 -08 24 10.8 20.4V 47171 309 Cc7555 2000 09 05.26069 00 08 45.21 -08 24 10.9 19.7R 47171 309 Cc7555 2000 09 05.26186 00 08 45.20 -08 24 10.9 19.1I 47171 309 Cc7555 2000 09 27.86381 00 06 37.88 -08 38 38.7 18.6R 47171 046 Cb9110 2000 09 27.86878 00 06 37.77 -08 38 38.9 47171 046 Cb9110 2000 09 27.87050 00 06 37.82 -08 38 39.2 47171 046 Cb9110 2000 09 27.87416 00 06 37.79 -08 38 39.6 47171 046 Cb9110 2000 09 27.87750 00 06 37.73 -08 38 40.1 18.5R 47171 046 Cb9110 2000 09 29.94625 00 06 25.89 -08 39 51.6 19.2R 47171 621 Cb9110 2000 09 29.94993 00 06 25.86 -08 39 52.3 19.4R 47171 621 Cb9110 2000 09 29.95361 00 06 25.80 -08 39 52.6 19.3R 47171 621 Cb9110 2000 09 30.02004 00 06 25.48 -08 39 54.4 18.8R 47171 621 Cb9110 2000 09 30.02372 00 06 25.43 -08 39 54.6 47171 621 Cb9110 2000 09 30.02742 00 06 25.48 -08 39 54.8 47171 621 Cb9110 2000 10 04.00635 00 06 02.79 -08 42 08.7 19.0R 47171 621 Cb9110 2000 10 04.01003 00 06 02.78 -08 42 08.8 19.1R 47171 621 Cb9110 2000 10 04.01372 00 06 02.74 -08 42 09.1 19.0R 47171 621 Cb9110 2000 10 04.01740 00 06 02.70 -08 42 09.0 19.1R 47171 621 Cb9110 2000 10 04.02108 00 06 02.72 -08 42 08.9 19.2R 47171 621 Cb9110 2000 10 04.02476 00 06 02.66 -08 42 09.4 18.7R 47171 621 Cb9110 2000 10 22.89743 00 04 22.20 -08 50 52.1 18.5R 47171 046 Cc0862 2000 10 22.90104 00 04 22.21 -08 50 52.5 18.7R 47171 046 Cc0862 2001 05 25.48761 00 18 20.40 -06 59 04.2 20.3R 47171 675 Cd1216 2001 05 26.48750 00 18 25.16 -06 58 49.1 20.3R 47171 675 Cd1216 2001 09 25.30909 00 15 28.95 -07 44 11.2 20. 47171 644 Cj0804 2001 09 25.33042 00 15 28.80 -07 44 11.6 47171 644 Cj0804 2001 09 27.23985 00 15 17.72 -07 45 21.3 47171 644 Cj0804 2001 09 27.26067 00 15 17.58 -07 45 21.9 20.5 47171 644 Cj0804 2001 10 14.93668 00 13 37.65 -07 55 00.4 18.9R 47171 046 Cd7491 2001 10 14.94172 00 13 37.64 -07 55 00.3 19.0R 47171 046 Cd7491 2001 10 16.22311 00 13 30.79 -07 55 38.2 20. 47171 644 Cj0804 2001 10 16.24360 00 13 30.67 -07 55 38.7 47171 644 Cj0804 2001 10 16.26756 00 13 30.55 -07 55 39.8 47171 644 Cj0804 2001 10 24.21931 00 12 49.49 -07 58 59.4 20.5 47171 644 Cj0804 2001 12 18.27813 00 10 33.61 -07 59 55.4 21. 47171 608 Cj0804 2002 08 11.53025 00 27 43.60 -06 21 20.6 20.5 47171 608 Cj0804 2002 08 11.54059 00 27 43.57 -06 21 21.5 47171 608 Cj0804 2002 08 11.55083 00 27 43.50 -06 21 21.6 47171 608 Cj0804 2002 08 14.08809 00 27 34.89 -06 22 51.0 18.9R 47171 621 Cg0832 2002 08 14.09962 00 27 34.85 -06 22 51.2 19.1R 47171 621 Cg0832 2002 08 14.11115 00 27 34.82 -06 22 51.4 19.4R 47171 621 Cg0832 2002 08 15.09596 00 27 31.31 -06 23 26.9 19.4R 47171 621 Cg0832 2002 08 15.10750 00 27 31.27 -06 23 27.3 19.4R 47171 621 Cg0832 2002 08 15.11903 00 27 31.21 -06 23 27.1 19.0R 47171 621 Cg0832 2002 08 17.12576 00 27 23.75 -06 24 40.5 19.3R 47171 621 Cg0832 2002 09 08.49284 00 25 40.64 -06 39 12.6 20. 47171 608 Cj0804 2002 09 17.47266 00 24 51.54 -06 45 11.3 20.5 47171 608 Cj0804 2002 10 07.31793 00 22 57.45 -06 57 23.7 20. 47171 608 Cj0805 2002 11 06.07953 00 20 24.50 -07 09 49.1 20.5 47171 644 Cj0805 2002 11 06.10057 00 20 24.42 -07 09 49.4 47171 644 Cj0805 2002 11 06.12149 00 20 24.29 -07 09 49.1 47171 644 Cj0805 2003 09 24.97975 00 32 48.09 -05 55 09.0 47171 621 Ci7510 2003 09 24.99141 00 32 48.04 -05 55 09.6 47171 621 Ci7510 2003 09 25.00696 00 32 47.93 -05 55 09.9 19.6R 47171 621 Ci7510 2003 09 25.95374 00 32 42.51 -05 55 46.1 47171 621 Ci7510 2003 09 26.01709 00 32 42.10 -05 55 48.7 20.0R 47171 621 Ci7510 2005 08 31.40240 00 52 12.86 -03 47 33.5 19.2R 47171 644 Co1403 2005 08 31.42520 00 52 12.75 -03 47 34.5 19.2R 47171 644 Co1403 2005 08 31.44858 00 52 12.64 -03 47 35.6 19.2R 47171 644 Co1403
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 -0.19 0.00 -1.59 2 1.9495 0.00 -0.04 0.00 -0.37 3 2.2471 0.00 -0.12 0.00 -0.11 4 25.2831 0.00 -0.46 0.00 -0.12 5 25.2831 0.00 -0.63 0.00 -0.02 6 25.2857 0.00 -0.36 0.00 -0.04 7 25.2858 0.00 -0.53 0.00 0.17 8 25.2883 0.00 -1.07 0.00 0.21 9 25.2914 0.00 ( 0.23) 0.00 ( -2.37) 10 25.2914 0.00 -0.09 0.00 -1.06 11 25.5178 0.00 -0.79 0.00 -0.96 12 25.5179 0.00 -0.11 0.00 -1.28 13 25.5233 0.00 ( -0.96) 0.00 ( -2.80) 14 25.5234 0.00 -1.67 0.00 -1.42 15 25.5397 0.00 0.13 0.00 0.03 16 25.5425 0.00 0.26 0.00 -0.19 17 25.5452 0.00 0.40 0.00 -0.42 18 26.1132 0.00 -0.46 0.00 0.01 19 26.1134 0.00 0.09 0.00 0.28 20 26.1136 0.00 -0.40 0.00 0.52 21 26.1160 0.00 0.31 0.00 0.13 22 26.1160 0.00 0.14 0.00 0.36 23 26.1161 0.00 -0.81 0.00 0.65 24 26.1163 0.00 -0.25 0.00 0.87 25 26.1902 0.00 1.14 0.00 -0.26 26 26.1903 0.00 -0.14 0.00 -0.25 27 26.1903 0.00 0.84 0.00 -0.33 28 26.2163 0.00 0.13 0.00 0.13 29 26.2163 0.00 0.23 0.00 0.08 30 26.2163 0.00 0.18 0.00 0.03 31 26.2163 0.00 0.27 0.00 0.08 32 26.2164 0.00 0.28 0.00 0.08 33 26.2164 0.00 0.39 0.00 0.13 34 26.2164 0.00 0.33 0.00 0.08 35 26.2165 0.00 0.28 0.00 0.13 36 26.2783 0.00 0.89 0.00 0.50 37 26.2783 0.00 -0.33 0.00 0.48 38 26.2784 0.00 0.57 0.00 0.24 39 26.2784 0.00 0.44 0.00 -0.03 40 26.2784 0.00 -0.17 0.00 -0.41 41 26.2840 0.00 0.35 0.00 0.51 42 26.2840 0.00 0.22 0.00 -0.07 43 26.2841 0.00 -0.36 0.00 -0.24 44 26.2842 0.00 0.62 0.00 0.25 45 26.2842 0.00 0.19 0.00 0.18 46 26.2843 0.00 1.26 0.00 0.11 47 26.2951 0.00 0.74 0.00 0.31 48 26.2952 0.00 0.91 0.00 0.33 49 26.2952 0.00 0.63 0.00 0.15 50 26.2952 0.00 0.34 0.00 0.37 51 26.2952 0.00 0.96 0.00 0.59 52 26.2952 0.00 0.38 0.00 0.21 53 26.3469 0.00 -0.32 0.00 0.28 54 26.3469 0.00 0.10 0.00 -0.04 55 26.9344 0.00 0.04 0.00 -1.45 56 26.9371 0.00 -0.75 0.00 -2.07 57 27.2707 0.00 0.59 0.00 -0.51 58 27.2707 0.00 0.22 0.00 -0.12 59 27.2759 0.00 -0.80 0.00 0.42 60 27.2760 0.00 -1.07 0.00 0.58 61 27.3244 0.00 -1.17 0.00 1.73 62 27.3244 0.00 -0.91 0.00 1.97 63 27.3279 0.00 -0.14 0.00 -0.03 64 27.3280 0.00 -0.26 0.00 0.04 65 27.3280 0.00 -0.10 0.00 -0.40 66 27.3498 0.00 0.12 0.00 0.31 67 27.5005 0.00 0.19 0.00 0.58 68 28.1474 0.00 0.08 0.00 0.39 69 28.1474 0.00 0.16 0.00 -0.15 70 28.1474 0.00 -0.37 0.00 0.10 71 28.1544 0.00 0.21 0.00 0.02 72 28.1544 0.00 0.23 0.00 0.23 73 28.1544 0.00 0.41 0.00 0.44 74 28.1571 0.00 0.46 0.00 0.20 75 28.1572 0.00 0.50 0.00 0.21 76 28.1572 0.00 0.24 0.00 0.83 77 28.1627 0.00 -0.22 0.00 0.29 78 28.2239 0.00 -0.28 0.00 0.02 79 28.2485 0.00 0.15 0.00 -0.61 80 28.3028 0.00 0.03 0.00 -0.31 81 28.3843 0.00 0.03 0.00 -0.20 82 28.3844 0.00 0.19 0.00 -0.18 83 28.3844 0.00 -0.41 0.00 0.43 84 29.2684 0.00 0.26 0.00 -0.32 85 29.2684 0.00 0.53 0.00 -0.48 86 29.2685 0.00 0.24 0.00 -0.18 87 29.2710 0.00 0.73 0.00 -0.17 88 29.2712 0.00 0.13 0.00 -0.35 89 31.2025 0.00 -0.16 0.00 -0.17 90 31.2025 0.00 -0.26 0.00 -0.30 91 31.2026 0.00 -0.32 0.00 -0.51
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.
47171 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.788 39.788 39.788 ecceobj 0.232 0.232 0.232 incobj 8.415 8.415 8.415 qmin 29.960 29.960 29.961 qmax 49.521 49.521 49.520 amean 39.455 39.455 39.455 amin 39.020 39.020 39.020 amax 39.960 39.960 39.960 emean 0.217 0.217 0.217 emin 0.194 0.194 0.194 emax 0.241 0.241 0.241 imean 6.658 6.658 6.658 imin 5.704 5.704 5.705 imax 7.721 7.721 7.721 fracstop 1.000 1.000 1.000 cjmean 2.983 2.983 2.983 libcent 0 180.5 180.5 180.5 libamp 0 75.3 75.3 75.3 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 184.1 184.1 184.1 kozaiamp 180.0 180.0 180.0