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: 00GX146 # Created Wed Dec 25 02:08:03 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 21 observations of 21 # Arc: 14.97y # First observation: 2000/04/03 # Last observation: 2015/03/23 # Chi-squared of fit: 62.10 DOF: 36 RMS: 0.30 # Min/Max residuals: -0.46 0.93 # Exact a, adot, b, bdot, g, gdot: 1.499666E-05 2.137907E-02 2.379813E-06 -2.319157E-04 2.288951E-02 -6.831719E-07 # Covariance matrix: 1.4013E-13 -6.7182E-14 -1.5300E-16 6.1073E-16 2.5177E-15 -1.8114E-13 -6.7182E-14 3.4787E-13 1.0485E-15 -3.6006E-15 -3.2135E-13 1.0688E-12 -1.5300E-16 1.0485E-15 1.2688E-13 -9.5016E-15 -1.2833E-15 3.2245E-15 6.1073E-16 -3.6006E-15 -9.5016E-15 2.1604E-15 3.2071E-15 -1.1139E-14 2.5177E-15 -3.2135E-13 -1.2833E-15 3.2071E-15 1.0175E-12 -9.5409E-13 -1.8114E-13 1.0688E-12 3.2245E-15 -1.1139E-14 -9.5409E-13 3.3064E-12 # lat0 lon0 xBary yBary zBary JD0 -0.287215 -170.811680 -0.084680 -0.005242 -1.003722 2451637.870353 # Heliocentric elements and errors Epoch: 2451638.5000 = 2000/04/04 Mean Anomaly: 168.06816 +/- 0.342 Argument of Peri: 35.87043 +/- 0.335 Long of Asc Node: 344.92732 +/- 0.005 Inclination: 0.68021 +/- 0.000 Eccentricity: 0.01866806 +/- 0.0001 Semi-Major Axis: 43.88272702 +/- 0.0089 Time of Perihelion: 2402068.1724 +/- 101.9 Perihelion: 43.06352159 +/- 0.0110 Aphelion: 44.70193246 +/- 0.0112 Period (y) 290.7024 +/- 0.09 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -44.09764838 +/- 0.0019 Ecliptic Y -7.21709648 +/- 0.0003 Ecliptic Z -0.21888283 +/- 0.0000 Ecliptic XDOT 0.00040238 +/- 0.0000 Ecliptic YDOT -0.00251763 +/- 0.0000 Ecliptic ZDOT -0.00002762 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.68486059 +/- 0.0019 Geocenter to KBO 43.68816666 +/- 0.0019 # Hcoef: 7.73
The following table shows the complete astrometric record for 00GX146. 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 (00GX146) followed by the observatory code and reference code for the source of the astrometry.
2000 04 03.36961 12 33 18.78 -03 54 20.7 23.9R 00GX146 568 Cb2885 2000 04 03.40451 12 33 18.62 -03 54 19.5 23.9R 00GX146 568 Cb2885 2000 04 03.44462 12 33 18.46 -03 54 18.4 23.9R 00GX146 568 Cb2885 2000 04 04.47116 12 33 14.12 -03 53 50.6 24.0R 00GX146 568 Cb2885 2000 04 04.52525 12 33 13.88 -03 53 49.1 24.2R 00GX146 568 Cb2885 2000 04 05.46661 12 33 09.90 -03 53 23.5 24.1R 00GX146 568 Cb2885 2000 04 05.51005 12 33 09.72 -03 53 22.4 24.1R 00GX146 568 Cb2885 2000 05 07.28426 12 31 08.89 -03 40 26.5 24.3R 00GX146 568 Cb5789 2000 05 07.33980 12 31 08.67 -03 40 25.8 24.0R 00GX146 568 Cb5789 2001 02 17.53336 12 40 41.72 -04 42 06.6 23.6R 00GX146 568 Cc6646 2001 02 17.58074 12 40 41.58 -04 42 05.6 23.9R 00GX146 568 Cc6646 2001 02 18.52863 12 40 38.76 -04 41 48.2 23.6R 00GX146 568 Cc6646 2001 03 24.36874 12 38 31.62 -04 28 29.2 23.4R 00GX146 695 Cc7846 2001 03 24.45273 12 38 31.26 -04 28 26.7 00GX146 695 Cc7846 2002 03 13.43568 12 43 47.46 -05 02 44.3 00GX146 696 Cf1719 2002 03 13.47273 12 43 47.31 -05 02 43.5 00GX146 696 Cf1719 2013 03 12.37741 13 33 51.34 -10 16 17.7 23.5R 00GX146 695 C~0uco 2013 03 12.45157 13 33 51.08 -10 16 16.1 00GX146 695 C~0uco 2013 03 13.37708 13 33 47.82 -10 15 57.6 00GX146 695 C~0uco 2015 03 23.36370 13 42 27.07 -11 06 55.9 23.6R 00GX146 695 C~1Q39 2015 03 23.42692 13 42 26.80 -11 06 54.5 00GX146 695 C~1Q39
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 -0.25 0.00 -0.46
2 0.0001 0.00 -0.39 0.00 -0.21
3 0.0002 0.00 -0.19 0.00 -0.19
4 0.0030 0.00 0.02 0.00 -0.16
5 0.0032 0.00 -0.09 0.00 -0.13
6 0.0057 0.00 -0.13 0.00 0.06
7 0.0059 0.00 -0.03 0.00 -0.01
8 0.0929 0.00 0.30 0.00 0.10
9 0.0930 0.00 -0.30 0.00 -0.33
10 0.8766 0.00 -0.09 0.00 -0.21
11 0.8767 0.00 -0.04 0.00 -0.08
12 0.8793 0.00 0.03 0.00 -0.25
13 0.9719 0.00 0.67 0.00 0.06
14 0.9722 0.00 0.67 0.00 0.31
15 1.9413 0.00 0.01 0.00 0.93
16 1.9414 0.00 0.00 0.00 0.81
17 12.9391 0.00 0.01 0.00 -0.30
18 12.9393 0.00 0.07 0.00 -0.16
19 12.9418 0.00 -0.19 0.00 0.02
20 14.9678 0.00 0.17 0.00 0.05
21 14.9680 0.00 -0.15 0.00 0.10
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.
00GX146 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.863 43.863 43.863 ecceobj 0.019 0.019 0.019 incobj 0.681 0.681 0.681 qmin 42.503 42.502 42.503 qmax 45.961 45.961 45.961 amean 44.154 44.154 44.154 amin 43.816 43.815 43.816 amax 44.492 44.492 44.491 emean 0.019 0.019 0.019 emin 0.003 0.003 0.003 emax 0.033 0.033 0.033 imean 2.070 2.070 2.070 imin 1.401 1.401 1.401 imax 2.587 2.587 2.588 excite_mean 0.041 0.041 0.041 fracstop 1.000 1.000 1.000 cjmean 3.101 3.101 3.101 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 196.9 196.9 196.9 kozaiamp 180.0 179.9 180.0