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: 14YT72 # Created Sun Dec 22 02:10:14 2024 # Orbit generated from Bernstein formalism # Fitting 30 observations of 30 # Arc: 3.95y # First observation: 2014/12/16 # Last observation: 2018/11/29 Preliminary a, adot, b, bdot, g, gdot: -0.000478 0.027467 0.000067 -0.001310 0.026406 0.000000 # Chi-squared of fit: 11.39 DOF: 54 RMS: 0.11 # Min/Max residuals: -0.31 0.27 # Exact a, adot, b, bdot, g, gdot: 1.660523E-05 2.663297E-02 -4.353477E-07 -1.271953E-03 2.545137E-02 -4.195444E-03 # Covariance matrix: 3.0173E-13 -2.7527E-13 -1.7622E-14 1.7710E-14 -9.1408E-14 -1.8639E-12 -2.7527E-13 4.0772E-13 1.4134E-14 -3.5090E-14 4.6469E-14 3.1597E-12 -1.7622E-14 1.4134E-14 1.5268E-13 -5.4978E-14 2.6309E-14 1.2618E-13 1.7710E-14 -3.5090E-14 -5.4978E-14 3.3091E-14 2.9035E-15 -2.9079E-13 -9.1408E-14 4.6469E-14 2.6309E-14 2.9035E-15 1.7419E-13 4.4372E-13 -1.8639E-12 3.1597E-12 1.2618E-13 -2.9079E-13 4.4372E-13 2.6418E-11 # lat0 lon0 xBary yBary zBary JD0 -31.795932 0.680067 -0.976214 -0.063273 -0.102440 2457007.589328 # Heliocentric elements and errors Epoch: 2457000.5000 = 2014/12/09 Mean Anomaly: 319.69991 +/- 0.028 Argument of Peri: 322.83966 +/- 0.048 Long of Asc Node: 95.92331 +/- 0.001 Inclination: 31.74480 +/- 0.000 Eccentricity: 0.17748272 +/- 0.0002 Semi-Major Axis: 44.73489583 +/- 0.0039 Time of Perihelion: 2469234.5878 +/- 8.2 Perihelion: 36.79522465 +/- 0.0080 Aphelion: 52.67456701 +/- 0.0086 Period (y) 299.2112 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 33.49794249 +/- 0.0005 Ecliptic Y 1.37552561 +/- 0.0000 Ecliptic Z -20.70212441 +/- 0.0003 Ecliptic XDOT -0.00049373 +/- 0.0000 Ecliptic YDOT 0.00285421 +/- 0.0000 Ecliptic ZDOT 0.00012160 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.40281941 +/- 0.0005 Geocenter to KBO 39.29061754 +/- 0.0006 # Hcoef: 7.17
The following table shows the complete astrometric record for 14YT72. 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 (14YT72) followed by the observatory code and reference code for the source of the astrometry.
2014 12 16.08855 00 57 45.605 -28 38 47.43 23.9g 14YT72 W84 C~4yVW 2014 12 16.08991 00 57 45.59 -28 38 47.2 23.0r 14YT72 W84 C~3cpk 2015 01 13.05089 00 57 51.287 -28 13 57.15 23.4i 14YT72 W84 C~4yVW 2015 01 13.05226 00 57 51.284 -28 13 56.95 22.8r 14YT72 W84 C~4yVW 2015 10 18.18083 01 07 56.015 -28 15 16.61 23.4r 14YT72 W84 C~4yVW 2015 10 18.18221 01 07 56.010 -28 15 16.76 23.3g 14YT72 W84 C~4yVW 2015 11 08.17513 01 06 09.054 -28 16 56.13 23.4g 14YT72 W84 C~4yVW 2015 11 15.09511 01 05 38.127 -28 15 47.62 22.3r 14YT72 W84 C~4yVW 2015 11 16.15329 01 05 33.686 -28 15 32.31 23.5i 14YT72 W84 C~4yVW 2015 11 18.10175 01 05 25.664 -28 15 01.55 22.6z 14YT72 W84 C~4yVW 2015 12 01.14386 01 04 39.567 -28 09 56.44 23.0r 14YT72 W84 C~4yVW 2015 12 01.14523 01 04 39.551 -28 09 56.39 22.9i 14YT72 W84 C~4yVW 2015 12 04.04490 01 04 31.274 -28 08 25.84 23.1r 14YT72 W84 C~4yVW 2016 08 16.33426 01 18 55.106 -26 53 37.03 22.5i 14YT72 W84 C~4yVW 2016 08 26.38720 01 18 26.58 -27 02 16.0 23.0i 14YT72 W84 C~3cpk 2016 08 26.38858 01 18 26.59 -27 02 16.0 22.9r 14YT72 W84 C~3cpk 2016 08 30.31306 01 18 13.115 -27 05 33.39 24.1g 14YT72 W84 C~4yVW 2016 10 09.08875 01 15 05.342 -27 31 32.83 22.4z 14YT72 W84 C~4yVW 2016 11 04.10858 01 12 48.136 -27 36 45.38 23.4r 14YT72 W84 C~4yVW 2016 11 04.10995 01 12 48.125 -27 36 45.30 24.1g 14YT72 W84 C~4yVW 2017 10 30.26698 01 19 35.312 -26 54 39.84 22.7z 14YT72 W84 C~4yVW 2017 11 26.05273 01 17 34.088 -26 50 44.51 23.3z 14YT72 W84 C~4yVW 2017 12 07.04713 01 16 58.933 -26 45 33.52 24.3g 14YT72 W84 C~4yVW 2017 12 09.03524 01 16 53.716 -26 44 25.24 23.3i 14YT72 W84 C~4yVW 2017 12 11.15302 01 16 48.592 -26 43 08.34 23.0g 14YT72 W84 C~4yVW 2018 10 01.34842 01 28 30.897 -26 01 06.28 22.4z 14YT72 W84 C~4yVW 2018 10 01.34979 01 28 30.875 -26 01 06.42 22.9i 14YT72 W84 C~4yVW 2018 11 16.05291 01 24 34.062 -26 10 42.87 23.0i 14YT72 W84 C~4yVW 2018 11 29.14311 01 23 40.994 -26 06 52.10 23.2r 14YT72 W84 C~4yVW 2018 11 29.14449 01 23 40.988 -26 06 51.99 23.9g 14YT72 W84 C~4yVW
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 -0.01 0.00 -0.07
2 0.0000 -0.07 -0.09 0.29 0.16
3 0.0766 742.38 0.08 1294.41 -0.08
4 0.0766 742.44 0.07 1294.61 0.06
5 0.8380 7793.58 0.03 -2475.01 0.06
6 0.8380 7793.45 0.00 -2475.11 -0.07
7 0.8955 6498.03 -0.05 -1897.55 0.23
8 0.9145 6168.75 -0.31 -1645.53 -0.11
9 0.9174 6124.00 0.13 -1604.53 -0.02
10 0.9227 6044.60 -0.00 -1527.74 0.10
11 0.9584 5647.69 0.11 -973.26 -0.09
12 0.9584 5647.53 -0.02 -973.12 -0.01
13 0.9663 5592.79 0.01 -841.95 -0.00
14 1.6680 17874.42 -0.08 -2405.97 0.19
15 1.6955 17283.27 -0.03 -2671.66 -0.03
16 1.6956 17283.38 0.17 -2671.72 -0.06
17 1.7063 17028.01 -0.13 -2755.70 -0.04
18 1.8152 14065.69 0.27 -2896.58 -0.25
19 1.8864 12309.46 -0.03 -2287.75 -0.05
20 1.8864 12309.37 -0.04 -2287.61 0.04
21 2.8725 18315.40 -0.21 -2726.65 -0.04
22 2.9458 17007.42 -0.12 -1721.57 -0.02
23 2.9759 16746.59 0.16 -1218.60 0.12
24 2.9814 16718.66 -0.06 -1124.60 0.00
25 2.9872 16696.04 0.14 -1023.65 -0.17
26 3.7926 26244.36 0.12 -3550.22 -0.02
27 3.7926 26244.03 -0.11 -3550.19 -0.00
28 3.9178 23153.23 0.02 -2429.56 0.03
29 3.9536 22643.11 -0.02 -1868.76 0.04
30 3.9536 22643.09 0.01 -1868.63 0.11
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.
14YT72 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 45.167 45.178 45.157 ecceobj 0.182 0.182 0.182 incobj 31.756 31.756 31.756 qmin 35.748 35.794 35.779 qmax 54.504 54.345 54.370 amean 44.920 44.909 44.891 amin 44.551 44.530 44.527 amax 45.359 45.336 45.310 emean 0.183 0.182 0.182 emin 0.164 0.165 0.165 emax 0.202 0.199 0.200 imean 30.050 30.056 30.053 imin 29.632 29.644 29.633 imax 30.416 30.441 30.430 excite_mean 0.533 0.533 0.533 fracstop 1.000 1.000 1.000 cjmean 2.750 2.750 2.750 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 176.1 176.6 175.7 kozaiamp 180.0 180.0 180.0