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: 12UV177 # Created Sun Dec 22 02:09:22 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 45 observations of 45 # Arc: 10.25y # First observation: 2011/09/01 # Last observation: 2021/12/01 # Chi-squared of fit: 49.48 DOF: 84 RMS: 0.19 # Min/Max residuals: -0.40 0.98 # Exact a, adot, b, bdot, g, gdot: 1.800362E-05 3.927668E-02 -2.492656E-06 -8.253502E-03 3.449794E-02 -1.836905E-03 # Covariance matrix: 1.5303E-13 -3.7207E-14 -3.0835E-15 7.9283E-15 7.0229E-14 -8.6222E-14 -3.7207E-14 1.0070E-13 1.8635E-14 -2.2842E-14 5.3727E-14 2.3907E-13 -3.0835E-15 1.8635E-14 6.2622E-14 -1.0972E-14 1.2826E-14 4.4566E-14 7.9283E-15 -2.2842E-14 -1.0972E-14 6.8959E-15 -1.1467E-14 -5.5247E-14 7.0229E-14 5.3727E-14 1.2826E-14 -1.1467E-14 1.1812E-13 1.1668E-13 -8.6222E-14 2.3907E-13 4.4566E-14 -5.5247E-14 1.1668E-13 5.7870E-13 # lat0 lon0 xBary yBary zBary JD0 17.917141 31.095045 0.800592 0.187461 -0.579918 2455805.932666 # Heliocentric elements and errors Epoch: 2455806.5000 = 2011/09/02 Mean Anomaly: 290.02128 +/- 0.017 Argument of Peri: 200.11929 +/- 0.020 Long of Asc Node: 265.72011 +/- 0.000 Inclination: 20.81839 +/- 0.000 Eccentricity: 0.07359297 +/- 0.0000 Semi-Major Axis: 30.19309561 +/- 0.0011 Time of Perihelion: 2467585.9060 +/- 3.9 Perihelion: 27.97109591 +/- 0.0012 Aphelion: 32.41509530 +/- 0.0013 Period (y) 165.9089 +/- 0.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.55710723 +/- 0.0002 Ecliptic Y 13.87506717 +/- 0.0001 Ecliptic Z 8.91763104 +/- 0.0001 Ecliptic XDOT -0.00155926 +/- 0.0000 Ecliptic YDOT 0.00270703 +/- 0.0000 Ecliptic ZDOT -0.00066804 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 29.58201104 +/- 0.0002 Geocenter to KBO 28.98728514 +/- 0.0003 # Hcoef: 9.19
The following table shows the complete astrometric record for 12UV177. 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 (12UV177) followed by the observatory code and reference code for the source of the astrometry.
2011 09 01.43190 01 27 49.778 +28 32 13.61 24.2r 12UV177 568 C~1Cs0 2011 09 01.47721 01 27 49.571 +28 32 13.90 23.9r 12UV177 568 C~1Cs0 2011 09 01.51985 01 27 49.394 +28 32 14.09 24.3r 12UV177 568 C~1Cs0 2011 09 05.45977 01 27 31.115 +28 32 14.72 23.6r 12UV177 568 C~1Cs0 2011 11 24.31930 01 19 08.144 +27 45 03.29 23.7r 12UV177 568 C~1Cs0 2011 11 24.33787 01 19 08.048 +27 45 02.24 23.6r 12UV177 568 C~1Cs0 2011 11 26.43627 01 18 57.913 +27 43 05.11 23.8r 12UV177 568 C~1Cs0 2011 11 29.32442 01 18 44.773 +27 40 24.09 23.7r 12UV177 568 C~1Cs0 2011 12 01.34208 01 18 36.141 +27 38 32.01 24.0r 12UV177 568 C~1Cs0 2012 01 28.28632 01 18 23.889 +26 57 43.63 24.3r 12UV177 568 C~1Cs0 2012 02 24.23244 01 20 55.516 +26 54 06.91 23.9r 12UV177 568 C~1Cs0 2012 08 23.57612 01 38 41.330 +28 56 04.34 12UV177 568 C~1Cs0 2012 08 28.45900 01 38 24.300 +28 56 51.55 24.0r 12UV177 568 C~1Cs0 2012 09 12.38956 01 37 15.614 +28 56 52.06 24.1r 12UV177 568 C~1Cs0 2012 09 14.42586 01 37 04.493 +28 56 35.13 23.9r 12UV177 568 C~1Cs0 2012 10 19.36449 01 33 14.264 +28 41 39.53 23.9r 12UV177 568 C~1Cs0 2012 10 19.40727 01 33 13.958 +28 41 37.67 23.7r 12UV177 568 C~1Cs0 2012 10 20.35652 01 33 07.214 +28 40 59.12 23.8r 12UV177 568 C~1Cs0 2012 10 20.39499 01 33 06.942 +28 40 57.49 23.6r 12UV177 568 C~1Cs0 2012 10 20.43389 01 33 06.660 +28 40 55.90 23.6r 12UV177 568 C~1Cs0 2012 10 21.41799 01 32 59.679 +28 40 15.12 23.7r 12UV177 568 C~1Cs0 2012 11 14.35891 01 30 19.275 +28 20 55.40 24.1r 12UV177 568 C~1Cs0 2013 01 14.22823 01 27 43.631 +27 30 50.46 24.1r 12UV177 568 C~1Cs0 2013 01 14.24065 01 27 43.664 +27 30 50.01 23.9r 12UV177 568 C~1Cs0 2013 02 03.30644 01 28 46.418 +27 22 14.12 23.9r 12UV177 568 C~1Cs0 2013 02 04.22689 01 28 50.640 +27 21 59.32 23.7r 12UV177 568 C~1Cs0 2013 02 06.25798 01 29 00.358 +27 21 28.94 12UV177 568 C~1Cs0 2013 02 09.25615 01 29 15.668 +27 20 51.11 24.1r 12UV177 568 C~1Cs0 2013 02 14.25470 01 29 43.696 +27 20 07.68 23.7r 12UV177 568 C~1Cs0 2013 02 16.22184 01 29 55.558 +27 19 57.02 23.7r 12UV177 568 C~1Cs0 2019 02 08.124260 02 30 54.229 +29 01 43.86 24.3G 12UV177 G37 C~2zmc 2019 02 08.203690 02 30 54.506 +29 01 42.66 12UV177 G37 C~2zmc 2021 01 11.111700 02 52 21.336 +29 26 22.63 23.9G 12UV177 G37 C~4U93 2021 01 11.169870 02 52 21.208 +29 26 20.13 12UV177 G37 C~4U93 2021 01 11.230270 02 52 21.079 +29 26 17.75 12UV177 G37 C~4U93 2021 12 01.06327 03 06 57.244 +29 56 00.73 12UV177 304 C~5RxN 2021 12 01.06668 03 06 57.210 +29 56 00.57 12UV177 304 C~5RxN 2021 12 01.07055 03 06 57.185 +29 56 00.51 12UV177 304 C~5RxN 2021 12 01.07439 03 06 57.168 +29 56 00.35 12UV177 304 C~5RxN 2021 12 01.07832 03 06 57.134 +29 56 00.01 12UV177 304 C~5RxN 2021 12 01.08158 03 06 57.100 +29 55 59.85 12UV177 304 C~5RxN 2021 12 01.08512 03 06 57.057 +29 55 59.85 12UV177 304 C~5RxN 2021 12 01.08837 03 06 57.049 +29 55 59.74 12UV177 304 C~5RxN 2021 12 01.12556 03 06 56.777 +29 55 58.19 12UV177 304 C~5RxN 2021 12 01.12882 03 06 56.760 +29 55 58.08 12UV177 304 C~5RxN
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 0.12 0.00 -0.25
2 0.0001 0.00 0.09 0.00 -0.08
3 0.0002 0.00 0.35 0.00 0.01
4 0.0110 0.00 0.04 0.00 -0.13
5 0.2297 0.00 -0.03 0.00 0.01
6 0.2297 0.00 -0.06 0.00 -0.00
7 0.2355 0.00 -0.06 0.00 -0.00
8 0.2434 0.00 -0.03 0.00 -0.01
9 0.2489 0.00 0.03 0.00 0.09
10 0.4075 0.00 -0.04 0.00 -0.09
11 0.4813 0.00 0.13 0.00 0.10
12 0.9778 0.00 0.12 0.00 0.15
13 0.9912 0.00 -0.02 0.00 0.17
14 1.0321 0.00 -0.15 0.00 0.02
15 1.0376 0.00 -0.32 0.00 0.03
16 1.1333 0.00 0.03 0.00 0.04
17 1.1334 0.00 0.08 0.00 -0.10
18 1.1360 0.00 -0.09 0.00 0.02
19 1.1361 0.00 -0.00 0.00 -0.04
20 1.1362 0.00 -0.01 0.00 -0.03
21 1.1389 0.00 -0.07 0.00 -0.02
22 1.2045 0.00 -0.05 0.00 -0.14
23 1.3711 0.00 -0.15 0.00 0.03
24 1.3711 0.00 0.05 0.00 0.00
25 1.4261 0.00 -0.03 0.00 -0.04
26 1.4286 0.00 -0.09 0.00 0.10
27 1.4342 0.00 0.10 0.00 0.02
28 1.4424 0.00 0.07 0.00 -0.22
29 1.4561 0.00 -0.12 0.00 -0.05
30 1.4614 0.00 -0.15 0.00 -0.12
31 7.4379 0.00 -0.01 0.00 0.28
32 7.4381 0.00 0.64 0.00 0.98
33 9.3626 0.00 -0.40 0.00 0.20
34 9.3627 0.00 -0.37 0.00 0.08
35 9.3629 0.00 -0.31 0.00 0.18
36 10.2495 0.00 0.18 0.00 -0.15
37 10.2495 0.00 0.05 0.00 -0.17
38 10.2495 0.00 0.09 0.00 -0.07
39 10.2495 0.00 0.25 0.00 -0.07
40 10.2495 0.00 0.17 0.00 -0.24
41 10.2496 0.00 0.01 0.00 -0.26
42 10.2496 0.00 -0.25 0.00 -0.11
43 10.2496 0.00 -0.01 0.00 -0.09
44 10.2497 0.00 -0.05 0.00 -0.07
45 10.2497 0.00 0.05 0.00 -0.04
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.
12UV177 quality flag:3 Type: 1:1 1:1 1:1 axisobj 30.228 30.228 30.228 ecceobj 0.072 0.072 0.072 incobj 20.823 20.823 20.823 qmin 27.493 27.494 27.493 qmax 32.906 32.891 32.904 amean 30.109 30.109 30.109 amin 29.828 29.828 29.828 amax 30.416 30.416 30.416 emean 0.060 0.060 0.060 emin 0.039 0.039 0.039 emax 0.083 0.083 0.083 imean 22.292 22.292 22.295 imin 22.088 22.098 22.107 imax 22.489 22.490 22.489 excite_mean 0.384 0.384 0.384 fracstop 1.000 1.000 1.000 cjmean 2.846 2.846 2.846 libcent 0 60.7 60.7 60.8 libamp 0 16.6 16.6 16.7 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 178.5 178.6 178.5 kozaiamp 180.0 180.0 180.0