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: 01HY65 # Created Fri May 2 02:36:33 2008 # Orbit generated from Bernstein formalism # Fitting 18 observations of 18 # Arc: 4.13y # First observation: 2000/02/12 # Last observation: 2004/03/30 Preliminary a, adot, b, bdot, g, gdot: -0.000163 0.026300 -0.000046 0.008098 0.026006 0.000000 # Chi-squared of fit: 27.62 DOF: 30 RMS: 0.22 # Min/Max residuals: -0.60 0.38 # Exact a, adot, b, bdot, g, gdot: 1.514227E-05 2.628476E-02 6.057333E-06 8.093618E-03 2.616784E-02 2.371692E-03 # Covariance matrix: 6.7827E-13 -5.3185E-13 1.0690E-13 -1.4382E-13 1.1230E-14 -4.1036E-12 -5.3185E-13 7.9866E-13 -1.9285E-13 2.5951E-13 3.3514E-13 7.4103E-12 1.0690E-13 -1.9285E-13 3.2364E-13 -1.7753E-13 -9.2558E-14 -1.9452E-12 -1.4382E-13 2.5951E-13 -1.7753E-13 1.5433E-13 1.2458E-13 2.6176E-12 1.1230E-14 3.3514E-13 -9.2558E-14 1.2458E-13 4.0724E-13 3.5615E-12 -4.1036E-12 7.4103E-12 -1.9452E-12 2.6176E-12 3.5615E-12 7.4747E-11 # lat0 lon0 xBary yBary zBary JD0 -1.623257 -176.057534 0.644017 -0.021558 -0.752647 2451586.934383 # Heliocentric elements and errors Epoch: 2451580.5000 = 2000/02/06 Mean Anomaly: 33.46399 +/- 0.082 Argument of Peri: 312.65485 +/- 0.114 Long of Asc Node: 188.14723 +/- 0.000 Inclination: 17.18339 +/- 0.001 Eccentricity: 0.11794128 +/- 0.0003 Semi-Major Axis: 42.98155413 +/- 0.0050 Time of Perihelion: 2442013.0369 +/- 23.3 Perihelion: 37.91225470 +/- 0.0119 Aphelion: 48.05085356 +/- 0.0124 Period (y) 281.7938 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -38.89763850 +/- 0.0009 Ecliptic Y -2.03315160 +/- 0.0001 Ecliptic Z -1.08226862 +/- 0.0000 Ecliptic XDOT -0.00008804 +/- 0.0000 Ecliptic YDOT -0.00275520 +/- 0.0000 Ecliptic ZDOT 0.00083954 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.96577077 +/- 0.0009 Geocenter to KBO 38.21485332 +/- 0.0009 # Hcoef: 6.36
The following table shows the complete astrometric record for 01HY65. 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 (01HY65) followed by the observatory code and reference code for the source of the astrometry.
2000 02 12.43364 12 11 53.47 -03 03 24.9 22.4V 01HY65 645 Cv2247 2000 03 03.43469 12 10 35.46 -02 53 48.8 22.4V 01HY65 645 Cv2247 2001 03 26.21736 12 15 09.42 -02 51 16.5 23.2R 01HY65 695 Cd1744 2001 03 26.32316 12 15 08.92 -02 51 12.6 01HY65 695 Cd1744 2001 04 26.43053 12 12 53.10 -02 33 41.3 21.9R 01HY65 568 Cd0950 2001 04 26.45793 12 12 52.99 -02 33 40.4 01HY65 568 Cd0950 2001 04 27.46330 12 12 49.23 -02 33 10.0 01HY65 568 Cd0950 2001 05 21.99887 12 11 37.81 -02 22 53.5 22.1R 01HY65 807 Cd1744 2001 05 22.10805 12 11 37.58 -02 22 51.4 01HY65 807 Cd1744 2001 06 08.97515 12 11 15.63 -02 18 32.7 22.4R 01HY65 304 Cd1744 2001 06 09.02543 12 11 15.60 -02 18 32.3 01HY65 304 Cd1744 2002 02 04.61646 12 24 42.94 -03 26 24.5 21.4R 01HY65 568 Cf2335 2002 02 05.57583 12 24 40.48 -03 26 04.8 01HY65 568 Cf2335 2002 02 06.59194 12 24 37.76 -03 25 43.4 01HY65 568 Cf2335 2003 03 06.40921 12 29 13.57 -03 23 10.3 21.2R 01HY65 662 Ch5853 2003 03 06.47894 12 29 13.28 -03 23 08.5 01HY65 662 Ch5853 2004 03 30.28790 12 33 36.29 -03 19 11.1 22.1V 01HY65 291 Ck2976 2004 03 30.31119 12 33 36.18 -03 19 10.1 22.0V 01HY65 291 Ck2976
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 -0.24 2 0.0548 -1301.30 -0.10 64.07 -0.20 3 1.1165 2404.99 -0.17 1834.16 0.15 4 1.1167 2396.56 -0.16 1834.77 0.32 5 1.2019 111.21 -0.01 1991.79 0.01 6 1.2020 109.34 -0.10 1991.96 0.05 7 1.2047 45.56 -0.03 1997.48 0.06 8 1.2719 -1181.67 0.17 2137.98 0.27 9 1.2722 -1185.67 0.14 2138.54 0.23 10 1.3211 -1590.41 0.01 2245.19 0.38 11 1.3213 -1590.98 -0.01 2245.38 0.29 12 1.9800 11139.61 0.09 3299.65 -0.48 13 1.9826 11097.87 0.19 3303.21 -0.45 14 1.9854 11051.87 -0.12 3306.79 -0.60 15 3.0609 14804.01 -0.18 5081.32 0.16 16 3.0610 14799.28 0.14 5081.26 -0.17 17 4.1283 18353.87 0.03 6858.78 0.02 18 4.1283 18351.95 -0.04 6859.05 0.19
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.
01HY65 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 42.970 42.970 42.970 ecceobj 0.118 0.118 0.118 incobj 17.185 17.185 17.185 qmin 37.236 37.251 37.234 qmax 49.521 49.502 49.524 amean 43.234 43.234 43.234 amin 42.886 42.890 42.891 amax 43.620 43.621 43.617 emean 0.121 0.121 0.121 emin 0.107 0.107 0.107 emax 0.136 0.136 0.136 imean 17.357 17.357 17.357 imin 16.796 16.796 16.799 imax 17.899 17.899 17.903 fracstop 1.000 1.000 1.000 cjmean 2.967 2.967 2.967 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 174.3 174.3 174.1 kozaiamp 179.9 180.0 179.9