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: 01KF76 # Created Fri Nov 22 02:08:12 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 17 observations of 17 # Arc: 5.99y # First observation: 2001/05/22 # Last observation: 2007/05/19 # Chi-squared of fit: 22.02 DOF: 28 RMS: 0.20 # Min/Max residuals: -0.43 0.52 # Exact a, adot, b, bdot, g, gdot: 1.566694E-05 2.164816E-02 -1.102174E-06 -1.188766E-03 2.301913E-02 -5.209441E-04 # Covariance matrix: 2.9493E-13 -3.9998E-13 -8.5055E-15 1.9852E-14 1.6654E-13 -2.6525E-12 -3.9998E-13 9.8045E-13 2.2082E-14 -5.1946E-14 -3.8631E-13 6.9440E-12 -8.5055E-15 2.2082E-14 1.5290E-13 -3.1795E-14 -9.6983E-15 1.5865E-13 1.9852E-14 -5.1946E-14 -3.1795E-14 1.8338E-14 2.0253E-14 -3.7400E-13 1.6654E-13 -3.8631E-13 -9.6983E-15 2.0253E-14 4.6031E-13 -2.6864E-12 -2.6525E-12 6.9440E-12 1.5865E-13 -3.7400E-13 -2.6864E-12 5.0001E-11 # lat0 lon0 xBary yBary zBary JD0 -0.684807 -117.019010 0.032792 -0.012299 -1.018149 2452051.705673 # Heliocentric elements and errors Epoch: 2452052.5000 = 2001/05/23 Mean Anomaly: 254.95989 +/- 0.201 Argument of Peri: 299.80910 +/- 0.182 Long of Asc Node: 50.95313 +/- 0.001 Inclination: 3.21917 +/- 0.000 Eccentricity: 0.02515919 +/- 0.0003 Semi-Major Axis: 44.13991871 +/- 0.0075 Time of Perihelion: 2483305.9806 +/- 62.8 Perihelion: 43.02939420 +/- 0.0171 Aphelion: 45.25044322 +/- 0.0173 Period (y) 293.2618 +/- 0.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -20.22145148 +/- 0.0006 Ecliptic Y -39.58504749 +/- 0.0011 Ecliptic Z -0.51926128 +/- 0.0000 Ecliptic XDOT 0.00231428 +/- 0.0000 Ecliptic YDOT -0.00111070 +/- 0.0000 Ecliptic ZDOT -0.00014044 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.45395480 +/- 0.0010 Geocenter to KBO 43.44217763 +/- 0.0013 # Hcoef: 7.11
The following table shows the complete astrometric record for 01KF76. 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 (01KF76) followed by the observatory code and reference code for the source of the astrometry.
2001 05 22.20493 16 03 10.13 -21 25 34.3 22.7R 01KF76 807 Cd1817 2001 05 22.28507 16 03 09.74 -21 25 33.3 01KF76 807 Cd1817 2001 06 10.02646 16 01 40.90 -21 21 36.8 23.2R 01KF76 304 Cd1817 2001 06 10.10167 16 01 40.55 -21 21 35.9 01KF76 304 Cd1817 2001 07 24.27778 15 59 07.43 -21 14 27.7 23.2R 01KF76 568 Cd4418 2001 07 24.31517 15 59 07.37 -21 14 27.5 01KF76 568 Cd4418 2001 07 25.30929 15 59 05.46 -21 14 21.9 23.3R 01KF76 568 Cd4418 2002 03 20.62434 16 12 07.25 -21 52 12.0 01KF76 568 Cf4952 2002 03 22.57886 16 12 04.19 -21 52 07.6 01KF76 568 Cf4952 2002 03 22.61707 16 12 04.11 -21 52 07.4 01KF76 568 Cf4952 2003 04 29.53379 16 15 19.05 -22 05 16.9 23.5R 01KF76 568 Ch9866 2003 04 29.58006 16 15 18.86 -22 05 16.5 01KF76 568 Ch9866 2003 04 30.57284 16 15 14.65 -22 05 07.1 01KF76 568 Ch9866 2007 05 19.70031 16 34 54.81 -23 05 51.2 23.6R 01KF76 250 S~06AP 2007 05 19.70725 16 34 54.78 -23 05 51.1 01KF76 250 S~06AP 2007 05 19.71420 16 34 54.74 -23 05 51.1 01KF76 250 S~06AP 2007 05 19.72114 16 34 54.71 -23 05 51.0 01KF76 250 S~06AP
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 -0.16 0.00 0.09
2 0.0002 0.00 -0.13 0.00 0.07
3 0.0515 0.00 -0.00 0.00 0.09
4 0.0517 0.00 -0.02 0.00 0.07
5 0.1727 0.00 -0.15 0.00 -0.40
6 0.1728 0.00 0.10 0.00 -0.42
7 0.1755 0.00 0.05 0.00 -0.43
8 0.8280 0.00 0.23 0.00 0.14
9 0.8333 0.00 0.16 0.00 -0.11
10 0.8334 0.00 -0.04 0.00 -0.01
11 1.9366 0.00 -0.05 0.00 0.39
12 1.9367 0.00 0.08 0.00 0.35
13 1.9394 0.00 0.09 0.00 0.52
14 5.9918 0.00 -0.04 0.00 -0.10
15 5.9918 0.00 0.01 0.00 -0.06
16 5.9918 0.00 -0.09 0.00 -0.12
17 5.9918 0.00 -0.04 0.00 -0.08
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.
01KF76 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.154 44.154 44.154 ecceobj 0.027 0.027 0.027 incobj 3.222 3.222 3.222 qmin 42.522 42.520 42.523 qmax 46.551 46.551 46.550 amean 44.442 44.442 44.442 amin 44.102 44.101 44.100 amax 44.786 44.789 44.785 emean 0.025 0.025 0.025 emin 0.010 0.010 0.010 emax 0.040 0.040 0.040 imean 2.192 2.192 2.192 imin 1.608 1.608 1.609 imax 2.701 2.701 2.701 excite_mean 0.046 0.046 0.046 fracstop 1.000 1.000 1.000 cjmean 3.104 3.104 3.104 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 182.5 182.4 182.8 kozaiamp 180.0 180.0 180.0