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: 03YT179 # Created Sun Nov 24 02:08:30 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 22 observations of 22 # Arc: 18.19y # First observation: 2003/12/24 # Last observation: 2022/03/02 # Chi-squared of fit: 104.52 DOF: 38 RMS: 0.39 # Min/Max residuals: -0.65 1.68 # Exact a, adot, b, bdot, g, gdot: 1.440797E-05 2.130464E-02 -2.634051E-07 -6.195760E-04 2.290711E-02 -7.231112E-05 # Covariance matrix: 2.2234E-13 -1.7886E-14 -6.9223E-16 5.1267E-16 1.8644E-13 -4.7876E-14 -1.7886E-14 3.8812E-14 1.0420E-15 -1.1038E-15 5.4961E-14 9.7719E-14 -6.9223E-16 1.0420E-15 1.1420E-13 -7.9127E-15 7.3922E-16 2.8030E-15 5.1267E-16 -1.1038E-15 -7.9127E-15 1.3769E-15 -1.2037E-15 -2.9238E-15 1.8644E-13 5.4961E-14 7.3922E-16 -1.2037E-15 4.6402E-13 1.0182E-13 -4.7876E-14 9.7719E-14 2.8030E-15 -2.9238E-15 1.0182E-13 2.5936E-13 # lat0 lon0 xBary yBary zBary JD0 -0.241066 111.722976 0.331330 -0.003815 -0.922964 2452997.966993 # Heliocentric elements and errors Epoch: 2452998.5000 = 2003/12/25 Mean Anomaly: 216.16654 +/- 0.147 Argument of Peri: 333.34724 +/- 0.140 Long of Asc Node: 283.21124 +/- 0.001 Inclination: 1.67717 +/- 0.000 Eccentricity: 0.02144321 +/- 0.0001 Semi-Major Axis: 43.81730140 +/- 0.0048 Time of Perihelion: 2495326.1642 +/- 44.6 Perihelion: 42.87771764 +/- 0.0055 Aphelion: 44.75688516 +/- 0.0057 Period (y) 290.0525 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -16.19504296 +/- 0.0005 Ecliptic Y 41.53676461 +/- 0.0012 Ecliptic Z -0.18369255 +/- 0.0000 Ecliptic XDOT -0.00236643 +/- 0.0000 Ecliptic YDOT -0.00095708 +/- 0.0000 Ecliptic ZDOT -0.00007386 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.58269492 +/- 0.0011 Geocenter to KBO 43.65461425 +/- 0.0013 # Hcoef: 7.28
The following table shows the complete astrometric record for 03YT179. 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 (03YT179) followed by the observatory code and reference code for the source of the astrometry.
2003 12 24.46625 07 33 43.60 +21 26 54.7 23.9g 03YT179 568 Cq9908 2003 12 24.48949 07 33 43.49 +21 26 55.0 23.9g 03YT179 568 Cq9908 2003 12 24.51273 07 33 43.40 +21 26 55.3 23.6g 03YT179 568 Cq9908 2003 12 25.50732 07 33 38.72 +21 27 05.0 24.2g 03YT179 568 Cq9908 2004 04 15.16266 07 28 02.18 +21 38 56.3 03YT179 675 Cq9908 2004 04 15.21468 07 28 02.25 +21 38 55.6 03YT179 675 Cq9908 2004 04 16.22828 07 28 03.57 +21 38 53.0 03YT179 675 Cq9908 2005 01 08.35658 07 37 37.58 +21 15 44.6 03YT179 568 Cq9908 2005 01 08.39444 07 37 37.37 +21 15 45.1 03YT179 568 Cq9908 2005 01 08.43225 07 37 37.19 +21 15 45.4 03YT179 568 Cq9908 2005 01 15.37950 07 37 02.53 +21 17 03.4 03YT179 568 Cq9908 2006 01 28.30023 07 41 09.36 +21 05 06.8 24. R 03YT179 675 Cq9908 2006 01 29.34986 07 41 04.32 +21 05 18.5 03YT179 675 Cq9908 2006 01 29.35607 07 41 04.30 +21 05 18.5 03YT179 675 Cq9908 2013 03 12.12459 08 13 49.42 +19 18 46.0 23.3R 03YT179 G37 C~0qSV 2013 03 12.26538 08 13 49.01 +19 18 47.3 03YT179 G37 C~0qSV 2020 02 18.161810 08 50 04.177 +16 53 51.65 23.5G 03YT179 G37 C~3iJH 2020 02 18.213530 08 50 03.951 +16 53 52.73 03YT179 G37 C~3iJH 2020 02 18.316420 08 50 03.471 +16 53 54.61 03YT179 G37 C~3iJH 2022 03 02.130000 08 58 58.589 +16 13 20.02 24.2G 03YT179 G37 C~5Rkz 2022 03 02.168100 08 58 58.536 +16 13 22.72 03YT179 G37 C~5Rkz 2022 03 02.208520 08 58 58.241 +16 13 21.29 03YT179 G37 C~5Rkz
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 0.06 0.00 -0.04
2 0.0001 0.00 0.07 0.00 0.02
3 0.0001 0.00 0.37 0.00 0.09
4 0.0029 0.00 0.08 0.00 -0.16
5 0.3085 0.00 -0.14 0.00 0.31
6 0.3087 0.00 -0.02 0.00 -0.25
7 0.3115 0.00 0.13 0.00 -0.08
8 1.0428 0.00 -0.08 0.00 0.08
9 1.0429 0.00 -0.37 0.00 0.15
10 1.0430 0.00 -0.20 0.00 0.02
11 1.0620 0.00 -0.07 0.00 0.02
12 2.0967 0.00 0.13 0.00 0.13
13 2.0996 0.00 -0.14 0.00 -0.03
14 2.0996 0.00 0.01 0.00 -0.10
15 9.2147 0.00 0.09 0.00 -0.04
16 9.2151 0.00 0.06 0.00 -0.04
17 16.1525 0.00 -0.16 0.00 -0.43
18 16.1526 0.00 -0.03 0.00 -0.29
19 16.1529 0.00 -0.21 0.00 -0.25
20 18.1866 0.00 -0.27 0.00 -0.35
21 18.1867 0.00 1.28 0.00 1.68
22 18.1868 0.00 -0.65 0.00 -0.45
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.
03YT179 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.701 43.701 43.701 ecceobj 0.022 0.022 0.022 incobj 1.680 1.680 1.680 qmin 41.848 41.849 41.847 qmax 45.543 45.548 45.535 amean 43.607 43.607 43.607 amin 43.280 43.280 43.280 amax 43.948 43.950 43.946 emean 0.021 0.021 0.021 emin 0.003 0.003 0.003 emax 0.036 0.036 0.036 imean 3.484 3.484 3.484 imin 2.765 2.765 2.765 imax 4.130 4.130 4.130 excite_mean 0.065 0.065 0.065 fracstop 1.000 1.000 1.000 cjmean 3.092 3.092 3.092 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 173.0 173.0 172.9 kozaiamp 179.9 180.0 180.0