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: 160427 # Created Thu May 24 01:36:49 2012 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 115 observations of 115 # Arc: 8.09y # First observation: 2003/09/28 # Last observation: 2011/11/01 # Chi-squared of fit: 133.88 DOF: 224 RMS: 0.19 # Min/Max residuals: -1.75 0.59 # Exact a, adot, b, bdot, g, gdot: 1.942774E-05 5.686217E-02 -3.994735E-06 -1.070922E-02 4.407001E-02 1.863359E-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 -6.273507 11.848629 0.127991 -0.108884 -0.990737 2452910.827093 # Heliocentric elements and errors Epoch: 2452910.5000 = 2003/09/28 Mean Anomaly: 35.77558 +/- 0.000 Argument of Peri: 170.88379 +/- 0.000 Long of Asc Node: 162.61295 +/- 0.000 Inclination: 12.27776 +/- 0.000 Eccentricity: 0.04063105 +/- 0.0000 Semi-Major Axis: 24.47243598 +/- 0.0000 Time of Perihelion: 2448516.1118 +/- 0.0 Perihelion: 23.47809524 +/- 0.0000 Aphelion: 25.46677672 +/- 0.0000 Period (y) 121.0665 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 23.07336301 +/- 0.0000 Ecliptic Y 4.71444101 +/- 0.0000 Ecliptic Z -2.47964597 +/- 0.0000 Ecliptic XDOT -0.00068882 +/- 0.0000 Ecliptic YDOT 0.00346008 +/- 0.0000 Ecliptic ZDOT -0.00067381 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 23.68024776 +/- 0.0000 Geocenter to KBO 22.69118951 +/- 0.0000 # Hcoef: 8.33
The following table shows the complete astrometric record for 160427. 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 (160427) followed by the observatory code and reference code for the source of the astrometry.
2003 09 28.32635 00 53 22.10 -01 05 34.2 22.3V 160427 705 cr5138 2003 09 28.32967 00 53 22.07 -01 05 34.4 23.6 160427 705 cr5138 2004 10 08.33716 01 04 57.43 -00 33 12.3 21.4V 160427 705 cu5958 2004 10 10.29383 01 04 42.76 -00 34 54.8 21.8V 160427 705 cu5958 2004 10 10.29715 01 04 42.74 -00 34 55.1 22.8 160427 705 cu5958 2004 11 05.24574 01 01 36.79 -00 54 33.7 21.9V 160427 705 cu5958 2005 09 03.36235 01 21 42.32 +00 40 06.1 21.7V 160427 705 cr5138 2005 09 03.36567 01 21 42.30 +00 40 06.1 22.5 160427 705 cr5138 2005 09 09.37520 01 21 09.54 +00 34 58.7 22.5V 160427 705 cr5138 2005 09 09.37603 01 21 09.52 +00 34 58.8 23.9 160427 705 cr5138 2005 09 14.33196 01 20 39.83 +00 30 36.8 22.2V 160427 705 cr5138 2005 09 14.33279 01 20 39.84 +00 30 36.9 23.5 160427 705 cr5138 2005 09 22.33070 01 19 47.62 +00 23 24.8 22.1V 160427 705 cr5138 2005 09 22.33153 01 19 47.61 +00 23 24.9 23.4 160427 705 cr5138 2005 09 26.36935 01 19 19.55 +00 19 44.8 23.1 160427 705 Cv1539 2005 09 26.37267 01 19 19.52 +00 19 44.7 21.9V 160427 705 Cv1539 2005 09 28.36799 01 19 05.34 +00 17 56.0 21.8V 160427 705 cr5138 2005 09 28.37131 01 19 05.31 +00 17 55.7 22.8 160427 705 cr5138 2005 10 12.29995 01 17 22.20 +00 05 33.0 23.2 160427 705 Cv1539 2005 10 12.30328 01 17 22.17 +00 05 33.1 22.1V 160427 705 Cv1539 2005 10 20.30954 01 16 21.93 -00 01 06.5 22.1V 160427 705 cr5138 2005 10 20.31037 01 16 21.92 -00 01 06.7 23.2 160427 705 cr5138 2005 10 23.37937 01 15 59.08 -00 03 32.0 22.3V 160427 705 cr5138 2005 10 23.38020 01 15 59.07 -00 03 32.0 23.6 160427 705 cr5138 2005 10 25.29871 01 15 44.95 -00 05 00.2 21.8V 160427 705 cr5138 2005 10 25.29954 01 15 44.93 -00 05 00.3 22.5 160427 705 cr5138 2005 10 27.30339 01 15 30.31 -00 06 30.1 22.0V 160427 705 cr5138 2005 10 27.30671 01 15 30.27 -00 06 30.2 23.0 160427 705 cr5138 2005 10 30.27149 01 15 08.95 -00 08 38.4 22.9 160427 705 Cv1539 2005 10 30.27481 01 15 08.93 -00 08 38.6 21.8V 160427 705 Cv1539 2005 11 01.26822 01 14 54.83 -00 10 01.5 23.2 160427 705 Cv1539 2005 11 01.27154 01 14 54.81 -00 10 01.7 21.9V 160427 705 Cv1539 2005 11 03.28909 01 14 40.77 -00 11 22.6 23.4 160427 705 Cv1539 2005 11 03.29241 01 14 40.75 -00 11 22.9 22.2V 160427 705 Cv1539 2005 11 05.32773 01 14 26.85 -00 12 41.5 22.9 160427 705 Cv1539 2005 11 05.33105 01 14 26.82 -00 12 41.6 22.0V 160427 705 Cv1539 2005 11 07.31873 01 14 13.56 -00 13 55.3 22.0V 160427 705 cr5138 2005 11 07.32205 01 14 13.52 -00 13 55.5 23.0 160427 705 cr5138 2005 11 23.27503 01 12 39.52 -00 21 43.9 23.7 160427 705 Cv1539 2005 11 23.27586 01 12 39.51 -00 21 43.9 22.3V 160427 705 Cv1539 2005 11 26.27382 01 12 24.83 -00 22 45.7 23.8 160427 705 Cv1539 2005 11 26.27465 01 12 24.84 -00 22 45.5 22.6V 160427 705 Cv1539 2005 12 01.26023 01 12 02.88 -00 24 07.8 23.6 160427 705 Cv1539 2005 12 01.26355 01 12 02.85 -00 24 08.0 22.3V 160427 705 Cv1539 2006 09 11.36983 01 33 44.46 +01 14 53.5 22.2V 160427 705 cs2985 2006 09 11.37066 01 33 44.44 +01 14 53.3 23.5 160427 705 cs2985 2006 09 17.38404 01 33 08.90 +01 09 39.3 22.0V 160427 705 cs2985 2006 09 17.38487 01 33 08.89 +01 09 39.3 23.3 160427 705 cs2985 2006 09 22.34447 01 32 37.13 +01 05 14.7 22.2V 160427 705 cs2985 2006 09 22.34530 01 32 37.12 +01 05 14.7 23.6 160427 705 cs2985 2006 09 30.32473 01 31 42.30 +00 58 05.6 21.9V 160427 705 cs2985 2006 09 30.32805 01 31 42.28 +00 58 05.5 23.0 160427 705 cs2985 2006 10 02.31914 01 31 28.01 +00 56 18.7 22.0V 160427 705 cs2985 2006 10 02.32246 01 31 27.98 +00 56 18.6 23.0 160427 705 cs2985 2006 10 04.31181 01 31 13.55 +00 54 32.1 21.7V 160427 705 cs2985 2006 10 04.31513 01 31 13.56 +00 54 31.8 22.5 160427 705 cs2985 2006 10 11.37633 01 30 21.14 +00 48 20.8 22.2V 160427 705 cs2985 2006 10 11.37716 01 30 21.16 +00 48 20.7 23.8 160427 705 cs2985 2006 10 13.38515 01 30 06.03 +00 46 37.5 22.1V 160427 705 cs4094 2006 10 13.38598 01 30 06.03 +00 46 37.5 23.5 160427 705 cs4094 2006 10 17.37980 01 29 35.81 +00 43 16.0 21.7V 160427 705 cs4094 2006 10 17.38312 01 29 35.79 +00 43 15.7 22.9 160427 705 cs4094 2006 10 21.30981 01 29 06.07 +00 40 03.7 21.9V 160427 705 cs4094 2006 10 21.31313 01 29 06.04 +00 40 03.6 22.9 160427 705 cs4094 2006 10 23.29656 01 28 51.10 +00 38 29.4 21.9V 160427 705 cs4094 2006 10 23.29988 01 28 51.07 +00 38 29.1 23.1 160427 705 cs4094 2006 10 27.38510 01 28 20.50 +00 35 21.4 21.7V 160427 705 cs6505 2006 10 27.38842 01 28 20.50 +00 35 21.7 22.7 160427 705 cs6505 2006 10 29.29043 01 28 06.46 +00 33 57.5 21.8V 160427 705 cs6505 2006 10 29.29375 01 28 06.42 +00 33 57.4 22.8 160427 705 cs6505 2006 11 01.30466 01 27 44.48 +00 31 49.1 22.1V 160427 705 cs6505 2006 11 01.30549 01 27 44.49 +00 31 49.2 23.5 160427 705 cs6505 2006 11 10.33039 01 26 41.59 +00 26 02.7 22.2V 160427 705 ct2241 2006 11 10.33122 01 26 41.61 +00 26 02.7 23.3 160427 705 ct2241 2006 11 13.29649 01 26 22.13 +00 24 22.8 22.0V 160427 705 ct2241 2006 11 13.29732 01 26 22.12 +00 24 22.6 23.1 160427 705 ct2241 2006 11 16.29241 01 26 03.20 +00 22 49.0 21.8V 160427 705 ct2241 2006 11 16.29573 01 26 03.18 +00 22 48.8 22.9 160427 705 ct2241 2006 11 19.29067 01 25 45.04 +00 21 23.2 22.1V 160427 705 ct2241 2006 11 19.29399 01 25 45.01 +00 21 23.0 23.3 160427 705 ct2241 2006 11 21.31235 01 25 33.31 +00 20 29.7 22.4V 160427 705 ct2241 2006 11 21.31318 01 25 33.30 +00 20 29.9 23.8 160427 705 ct2241 2006 11 24.28090 01 25 16.86 +00 19 18.6 22.1V 160427 705 ct2241 2006 11 24.28422 01 25 16.85 +00 19 18.7 23.3 160427 705 ct2241 2007 11 01.35945 01 40 32.47 +01 13 25.0 22.2V 160427 705 Cz3469 2007 11 01.36028 01 40 32.46 +01 13 25.0 23.6 160427 705 Cz3469 2007 11 02.29768 01 40 25.55 +01 12 45.6 21.7V 160427 705 Cz3469 2007 11 02.30100 01 40 25.51 +01 12 45.5 22.7 160427 705 Cz3469 2007 11 05.30227 01 40 03.60 +01 10 43.5 22.0V 160427 705 Cz3469 2007 11 05.30559 01 40 03.58 +01 10 43.4 23.0 160427 705 Cz3469 2007 11 08.32294 01 39 41.97 +01 08 47.3 22.0V 160427 705 Cz3469 2007 11 08.32626 01 39 41.96 +01 08 46.9 23.1 160427 705 Cz3469 2007 11 12.29568 01 39 14.37 +01 06 24.4 22.2V 160427 705 Cz3469 2007 11 12.29900 01 39 14.34 +01 06 24.4 23.4 160427 705 Cz3469 2007 11 17.30101 01 38 41.16 +01 03 42.6 21.9V 160427 705 Cz3469 2007 11 17.30433 01 38 41.13 +01 03 42.7 22.9 160427 705 Cz3469 2007 11 18.30122 01 38 34.77 +01 03 13.0 22.0V 160427 705 Cz3469 2007 11 18.30205 01 38 34.76 +01 03 13.0 23.2 160427 705 Cz3469 2007 11 19.27750 01 38 28.62 +01 02 44.7 22.0V 160427 705 Cz3469 2007 11 19.28082 01 38 28.61 +01 02 44.3 22.9 160427 705 Cz3469 2007 11 20.23712 01 38 22.66 +01 02 17.7 21.9V 160427 705 Cz3469 2007 11 20.23795 01 38 22.66 +01 02 17.8 23.1 160427 705 Cz3469 2008 09 21.51213 01 58 06.55 +02 27 32.8 22.0R 160427 250 S~06He 2008 09 21.51907 01 58 06.51 +02 27 32.5 160427 250 S~06He 2008 09 21.52532 01 58 06.47 +02 27 32.1 160427 250 S~06Hf 2008 09 21.53226 01 58 06.43 +02 27 31.8 160427 250 S~06Hf 2008 12 01.14601 01 49 54.15 +01 38 41.4 21.2R 160427 688 C~02No 2008 12 01.19151 01 49 53.90 +01 38 40.4 160427 688 C~02No 2011 09 24.49685 02 35 46.198 +04 23 43.44 21.9w 160427 F51 C~0Yp5 2011 09 24.51139 02 35 46.140 +04 23 42.87 22.1w 160427 F51 C~0Yp5 2011 09 24.52594 02 35 46.041 +04 23 42.12 22.1w 160427 F51 C~0Yp5 2011 11 01.39770 02 31 23.73 +03 54 03.8 21.0V 160427 G96 C~0aJg 2011 11 01.40621 02 31 23.70 +03 54 03.8 21.6V 160427 G96 C~0aJg 2011 11 01.41480 02 31 23.59 +03 54 02.6 21.4V 160427 G96 C~0aJg 2011 11 01.42331 02 31 23.52 +03 54 02.5 21.6V 160427 G96 C~0aJg
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 -0.33 0.00 -1.75 2 0.0000 0.00 0.18 0.00 0.13 3 1.0295 0.00 -0.24 0.00 -0.25 4 1.0348 0.00 0.21 0.00 -0.14 5 1.0348 0.00 0.30 0.00 -0.27 6 1.1059 0.00 -0.32 0.00 -0.39 7 1.9330 0.00 0.02 0.00 -0.11 8 1.9330 0.00 -0.01 0.00 0.06 9 1.9495 0.00 0.16 0.00 0.00 10 1.9495 0.00 -0.07 0.00 0.15 11 1.9631 0.00 -0.01 0.00 -0.13 12 1.9631 0.00 0.22 0.00 0.01 13 1.9850 0.00 0.29 0.00 -0.11 14 1.9850 0.00 0.23 0.00 0.04 15 1.9960 0.00 0.03 0.00 0.05 16 1.9960 0.00 -0.06 0.00 0.13 17 2.0015 0.00 0.20 0.00 0.16 18 2.0015 0.00 0.11 0.00 0.04 19 2.0396 0.00 0.30 0.00 0.05 20 2.0396 0.00 0.23 0.00 0.32 21 2.0616 0.00 0.07 0.00 0.28 22 2.0616 0.00 0.02 0.00 0.12 23 2.0700 0.00 0.07 0.00 0.06 24 2.0700 0.00 0.02 0.00 0.10 25 2.0752 0.00 0.19 0.00 0.09 26 2.0752 0.00 -0.01 0.00 0.03 27 2.0807 0.00 0.17 0.00 0.03 28 2.0807 0.00 -0.07 0.00 0.08 29 2.0888 0.00 0.07 0.00 0.12 30 2.0888 0.00 0.13 0.00 0.06 31 2.0943 0.00 0.05 0.00 0.07 32 2.0943 0.00 0.11 0.00 0.01 33 2.0998 0.00 0.04 0.00 0.13 34 2.0998 0.00 0.09 0.00 -0.03 35 2.1054 0.00 0.03 0.00 0.03 36 2.1054 0.00 -0.08 0.00 0.05 37 2.1109 0.00 0.28 0.00 0.06 38 2.1109 0.00 0.02 0.00 -0.02 39 2.1545 0.00 0.12 0.00 0.10 40 2.1546 0.00 0.04 0.00 0.11 41 2.1628 0.00 0.03 0.00 -0.15 42 2.1628 0.00 0.24 0.00 0.07 43 2.1764 0.00 0.09 0.00 0.02 44 2.1764 0.00 -0.15 0.00 -0.13 45 2.9543 0.00 0.16 0.00 0.13 46 2.9543 0.00 -0.07 0.00 -0.03 47 2.9707 0.00 0.15 0.00 0.04 48 2.9707 0.00 0.08 0.00 0.08 49 2.9843 0.00 -0.04 0.00 -0.08 50 2.9843 0.00 -0.10 0.00 -0.03 51 3.0062 0.00 0.21 0.00 0.00 52 3.0062 0.00 0.27 0.00 0.08 53 3.0116 0.00 0.14 0.00 0.05 54 3.0116 0.00 0.05 0.00 0.12 55 3.0171 0.00 0.07 0.00 -0.15 56 3.0171 0.00 0.59 0.00 -0.27 57 3.0364 0.00 -0.12 0.00 0.04 58 3.0364 0.00 0.27 0.00 -0.02 59 3.0419 0.00 0.11 0.00 0.12 60 3.0419 0.00 0.21 0.00 0.16 61 3.0528 0.00 0.07 0.00 0.21 62 3.0529 0.00 0.15 0.00 0.08 63 3.0636 0.00 0.03 0.00 0.03 64 3.0636 0.00 -0.04 0.00 0.09 65 3.0690 0.00 0.14 0.00 0.11 66 3.0691 0.00 0.07 0.00 -0.04 67 3.0802 0.00 -0.25 0.00 -0.26 68 3.0803 0.00 0.12 0.00 0.19 69 3.0855 0.00 0.07 0.00 -0.04 70 3.0855 0.00 -0.16 0.00 0.01 71 3.0937 0.00 -0.06 0.00 -0.04 72 3.0937 0.00 0.18 0.00 0.10 73 3.1184 0.00 0.01 0.00 0.02 74 3.1184 0.00 0.40 0.00 0.05 75 3.1265 0.00 0.12 0.00 0.28 76 3.1265 0.00 0.05 0.00 0.10 77 3.1347 0.00 0.22 0.00 0.13 78 3.1348 0.00 0.23 0.00 0.03 79 3.1430 0.00 -0.05 0.00 0.15 80 3.1430 0.00 -0.20 0.00 0.04 81 3.1485 0.00 0.09 0.00 -0.12 82 3.1485 0.00 0.01 0.00 0.10 83 3.1566 0.00 0.17 0.00 -0.06 84 3.1566 0.00 0.30 0.00 0.11 85 4.0932 0.00 0.10 0.00 0.09 86 4.0932 0.00 0.04 0.00 0.12 87 4.0957 0.00 0.10 0.00 0.01 88 4.0958 0.00 -0.13 0.00 0.05 89 4.1040 0.00 0.01 0.00 -0.03 90 4.1040 0.00 0.07 0.00 0.00 91 4.1122 0.00 -0.06 0.00 0.18 92 4.1123 0.00 0.15 0.00 -0.10 93 4.1231 0.00 0.22 0.00 0.00 94 4.1231 0.00 0.12 0.00 0.11 95 4.1368 0.00 0.08 0.00 -0.07 96 4.1368 0.00 -0.04 0.00 0.13 97 4.1396 0.00 0.10 0.00 0.10 98 4.1396 0.00 0.03 0.00 0.12 99 4.1422 0.00 0.11 0.00 0.01 100 4.1422 0.00 0.28 0.00 -0.29 101 4.1449 0.00 0.11 0.00 -0.08 102 4.1449 0.00 0.19 0.00 0.05 103 4.9834 0.00 0.00 0.00 0.16 104 4.9834 0.00 0.03 0.00 0.21 105 4.9834 0.00 0.00 0.00 0.14 106 4.9835 0.00 0.03 0.00 0.19 107 5.1768 0.00 0.02 0.00 0.53 108 5.1769 0.00 -0.01 0.00 0.34 109 7.9895 0.00 -0.07 0.00 -0.01 110 7.9896 0.00 0.27 0.00 0.11 111 7.9896 0.00 0.00 0.00 0.06 112 8.0933 0.00 0.03 0.00 -0.06 113 8.0933 0.00 0.59 0.00 0.29 114 8.0933 0.00 -0.05 0.00 -0.55 115 8.0934 0.00 -0.10 0.00 -0.29
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.
160427 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 24.669 24.669 24.669 ecceobj 0.047 0.047 0.047 incobj 12.240 12.240 12.240 qmin 19.923 19.720 20.150 qmax 30.038 30.700 31.629 amean 24.678 25.122 24.876 amin 24.391 24.497 24.411 amax 25.675 26.161 26.890 emean 0.082 0.078 0.075 emin 0.009 0.032 0.024 emax 0.187 0.205 0.219 imean 11.610 11.214 10.825 imin 9.324 9.301 9.184 imax 16.328 13.459 13.627 excite_mean 0.218 0.211 0.205 fracstop 0.362 0.352 0.319 cjmean 2.986 2.985 2.989 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 176.7 180.9 184.4 kozaiamp 179.9 179.8 179.6