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: 150642 # Created Thu May 24 01:36:49 2012 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 55 observations of 56 # Arc: 10.09y # First observation: 2001/02/03 # Last observation: 2011/03/10 # Chi-squared of fit: 524.31 DOF: 104 RMS: 0.55 # Min/Max residuals: -1.08 1.97 # Exact a, adot, b, bdot, g, gdot: 1.693071E-05 2.469048E-02 3.072981E-06 4.443473E-03 2.474836E-02 -2.153223E-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 -0.548721 133.210342 -0.029459 -0.009577 -0.984726 2451943.820983 # Heliocentric elements and errors Epoch: 2451944.5000 = 2001/02/04 Mean Anomaly: 321.72475 +/- 0.000 Argument of Peri: 44.83107 +/- 0.000 Long of Asc Node: 136.21771 +/- 0.000 Inclination: 10.20913 +/- 0.000 Eccentricity: 0.11970729 +/- 0.0000 Semi-Major Axis: 45.36714193 +/- 0.0000 Time of Perihelion: 2463811.0956 +/- 0.0 Perihelion: 39.93636428 +/- 0.0000 Aphelion: 50.79791958 +/- 0.0000 Period (y) 305.5768 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -28.35620838 +/- 0.0000 Ecliptic Y 30.15103963 +/- 0.0000 Ecliptic Z -0.38684674 +/- 0.0000 Ecliptic XDOT -0.00183921 +/- 0.0000 Ecliptic YDOT -0.00203682 +/- 0.0000 Ecliptic ZDOT 0.00049402 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.39219482 +/- 0.0000 Geocenter to KBO 40.40679957 +/- 0.0000 # Hcoef: 5.54
The following table shows the complete astrometric record for 150642. 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 (150642) followed by the observatory code and reference code for the source of the astrometry.
2001 02 03.32024 09 02 03.27 +16 19 37.0 150642 568 Cc6947 2001 02 03.34231 09 02 03.16 +16 19 37.6 150642 568 Cc6947 2001 02 04.41270 09 01 57.83 +16 20 03.1 21.4 150642 568 Cc6947 2001 02 04.43389 09 01 57.71 +16 20 03.6 150642 568 Cc6947 2001 02 20.30002 09 00 41.09 +16 26 12.7 21.6R 150642 568 Cc6947 2001 02 20.51980 09 00 40.04 +16 26 17.6 21.7R 150642 568 Cc6947 2001 02 21.34075 09 00 36.26 +16 26 35.9 150642 568 Cc6947 2001 03 11.06678 08 59 22.12 +16 32 42.8 21.4 150642 304 Ce9333 2001 03 11.09326 08 59 22.01 +16 32 43.4 150642 304 Ce9333 2001 03 24.18356 08 58 39.53 +16 36 22.2 21.5R 150642 695 Cc7994 2001 03 24.29420 08 58 39.23 +16 36 23.8 150642 695 Cc7994 2001 03 28.17874 08 58 29.23 +16 37 18.3 21.5R 150642 688 Cc7994 2001 03 28.25734 08 58 29.05 +16 37 19.0 150642 688 Cc7994 2001 12 12.19146 09 11 38.29 +15 51 42.6 150642 950 Ce3559 2001 12 12.23185 09 11 38.20 +15 51 43.1 150642 950 Ce3559 2001 12 13.14961 09 11 35.98 +15 51 54.8 150642 950 Ce3559 2001 12 13.17259 09 11 35.93 +15 51 55.3 150642 950 Ce3559 2002 11 30.54015 09 17 54.15 +15 38 51.2 21.7R 150642 568 Cg7751 2002 11 30.61364 09 17 54.06 +15 38 51.8 150642 568 Cg7751 2002 12 01.54916 09 17 52.98 +15 38 59.6 150642 568 Cg7751 2004 02 17.05691 09 18 58.13 +15 53 34.5 21.1R 150642 493 Cs6769 2004 02 17.06384 09 18 58.10 +15 53 34.6 21.1R 150642 493 Cs6769 2004 02 17.14602 09 18 57.70 +15 53 36.8 21.4R 150642 493 Cs6769 2004 02 17.15295 09 18 57.67 +15 53 37.2 21.4R 150642 493 Cs6769 2004 02 17.86280 09 18 54.24 +15 53 54.7 21.4R 150642 493 Cs6769 2004 02 17.95831 09 18 53.79 +15 53 56.9 21.1R 150642 493 Cs6769 2004 02 17.99598 09 18 53.60 +15 53 57.9 21.2R 150642 493 Cs6769 2004 02 18.03144 09 18 53.43 +15 53 58.7 21.1R 150642 493 Cs6769 2004 02 18.08632 09 18 53.16 +15 54 00.1 21.3R 150642 493 Cs6769 2004 02 18.12630 09 18 52.97 +15 54 01.0 21.2R 150642 493 Cs6769 2004 02 19.01233 09 18 48.701 +15 54 23.06 21.7V 150642 493 Cz7588 2004 02 19.01522 09 18 48.70 +15 54 23.0 21.4R 150642 493 Cs6769 2004 02 19.03456 09 18 48.578 +15 54 23.50 21.7V 150642 493 Cz7588 2004 02 19.03745 09 18 48.59 +15 54 23.5 21.1R 150642 493 Cs6769 2004 02 19.08220 09 18 48.365 +15 54 24.95 21.5V 150642 493 Cz7588 2004 02 19.08509 09 18 48.37 +15 54 24.8 21.2R 150642 493 Cs6769 2004 02 19.10457 09 18 48.449 +15 54 26.70 21.8V 150642 493 Cz7588 2004 02 19.10747 09 18 48.26 +15 54 25.3 21.3R 150642 493 Cs6769 2005 02 10.32004 09 25 28.44 +15 39 17.9 22.3g 150642 568 Cn3238 2005 02 10.40020 09 25 28.04 +15 39 20.0 22.3g 150642 568 Cn3238 2005 02 10.44045 09 25 27.85 +15 39 21.0 22.2g 150642 568 Cn3238 2006 01 18.34476 09 33 20.55 +15 16 50.6 21.4R 150642 250 S~06He 2006 01 18.34916 09 33 20.52 +15 16 50.8 150642 250 S~06He 2006 01 18.35356 09 33 20.50 +15 16 50.9 150642 250 S~06He 2006 01 18.35796 09 33 20.48 +15 16 51.0 150642 250 S~06He 2007 02 18.35699 09 36 55.10 +15 17 12.2 21.6R 150642 568 Cu1424 2007 02 18.37223 09 36 55.02 +15 17 12.7 150642 568 Cu1424 2007 02 18.38836 09 36 54.93 +15 17 12.9 150642 568 Cu1424 2007 02 20.39815 09 36 45.16 +15 18 06.7 21.5R 150642 568 Cu1424 2007 02 20.41900 09 36 45.08 +15 18 07.0 150642 568 Cu1424 2007 02 20.43657 09 36 44.98 +15 18 07.7 21.6R 150642 568 Cu1424 2007 02 23.162801 09 36 31.90 +15 19 18.3 22.2 150642 H55 Cu1424 2007 02 23.218287 09 36 31.74 +15 19 20.0 22.4 150642 H55 Cu1424 2007 02 23.250744 09 36 31.56 +15 19 20.4 22.1 150642 H55 Cu1424 2011 03 10.24042 09 59 31.66 +14 28 04.7 21.5R 150642 688 C~0Tyn 2011 03 10.29007 09 59 31.44 +14 28 06.1 150642 688 C~0Tyn
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 1.05 2 0.0001 0.00 -0.18 0.00 0.07 3 0.0030 0.00 -0.57 0.00 0.17 4 0.0030 0.00 -0.77 0.00 0.17 5 0.0465 0.00 -0.16 0.00 -0.07 6 0.0471 0.00 -0.36 0.00 -0.10 7 0.0493 0.00 -0.42 0.00 -0.22 8 0.0979 0.00 1.68 0.00 0.07 9 0.0979 0.00 1.53 0.00 0.18 10 0.1338 0.00 0.08 0.00 0.04 11 0.1341 0.00 0.24 0.00 0.03 12 0.1447 0.00 0.23 0.00 0.12 13 0.1449 0.00 0.46 0.00 -0.22 14 0.8539 0.00 -0.63 0.00 -0.06 15 0.8540 0.00 -0.48 0.00 -0.08 16 0.8565 0.00 -0.30 0.00 -0.36 17 0.8565 0.00 -0.16 0.00 -0.17 18 1.8213 0.00 -0.28 0.00 -0.49 19 1.8215 0.00 -0.25 0.00 -0.48 20 1.8240 0.00 0.62 0.00 -0.24 21 3.0356 0.00 0.03 0.00 -0.09 22 3.0356 0.00 0.09 0.00 -0.16 23 3.0358 0.00 0.12 0.00 0.02 24 3.0358 0.00 0.18 0.00 0.25 25 3.0378 0.00 -0.18 0.00 0.15 26 3.0380 0.00 0.07 0.00 -0.03 27 3.0381 0.00 -0.01 0.00 0.04 28 3.0382 0.00 0.04 0.00 -0.03 29 3.0384 0.00 0.01 0.00 0.02 30 3.0385 0.00 0.08 0.00 -0.06 31 3.0409 0.00 -0.22 0.00 0.13 32 3.0409 0.00 -0.02 0.00 0.00 33 3.0410 0.00 -0.44 0.00 0.03 34 3.0410 0.00 -0.05 0.00 -0.05 35 3.0411 0.00 -0.16 0.00 0.31 36 3.0411 0.00 0.12 0.00 0.09 37 3.0412 0.00 ( 2.73) 0.00 ( 1.51) 38 3.0412 0.00 0.10 0.00 0.04 39 4.0192 0.00 -0.32 0.00 -0.53 40 4.0194 0.00 -0.31 0.00 -0.52 41 4.0195 0.00 -0.14 0.00 -0.56 42 4.9556 0.00 1.97 0.00 0.67 43 4.9556 0.00 1.81 0.00 0.76 44 4.9556 0.00 1.81 0.00 0.75 45 4.9556 0.00 1.80 0.00 0.74 46 6.0398 0.00 -0.10 0.00 -0.42 47 6.0398 0.00 -0.17 0.00 -0.32 48 6.0399 0.00 -0.33 0.00 -0.55 49 6.0454 0.00 -1.00 0.00 0.30 50 6.0454 0.00 -0.66 0.00 0.06 51 6.0455 0.00 -0.87 0.00 0.30 52 6.0530 0.00 -1.08 0.00 -0.02 53 6.0531 0.00 0.55 0.00 0.25 54 6.0532 0.00 0.21 0.00 -0.19 55 10.0942 0.00 -0.03 0.00 -0.43 56 10.0944 0.00 0.04 0.00 -0.28
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.
150642 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.183 45.183 45.183 ecceobj 0.117 0.117 0.117 incobj 10.225 10.225 10.225 qmin 39.670 39.672 39.673 qmax 50.879 50.877 50.876 amean 45.247 45.247 45.247 amin 45.225 45.225 45.225 amax 45.280 45.280 45.281 emean 0.117 0.117 0.117 emin 0.111 0.111 0.111 emax 0.124 0.124 0.124 imean 9.013 9.013 9.013 imin 8.554 8.555 8.554 imax 9.531 9.532 9.531 excite_mean 0.195 0.195 0.195 fracstop 1.000 1.000 1.000 cjmean 3.070 3.070 3.070 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 178.1 178.3 178.1 kozaiamp 180.0 180.0 180.0