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: 16TA95 # Created Fri Apr 19 01:18:17 2024 # Orbit generated from Bernstein formalism # Fitting 24 observations of 24 # Arc: 4.10y # First observation: 2014/09/30 # Last observation: 2018/11/07 Preliminary a, adot, b, bdot, g, gdot: 0.000198 0.036066 -0.000031 -0.005223 0.028947 0.000000 # Chi-squared of fit: 11.84 DOF: 42 RMS: 0.12 # Min/Max residuals: -0.30 0.39 # Exact a, adot, b, bdot, g, gdot: 1.976076E-05 3.612508E-02 -2.803862E-06 -5.214231E-03 2.856243E-02 6.978534E-04 # Covariance matrix: 3.2213E-13 -1.3991E-13 -1.8209E-14 1.1109E-14 1.0776E-13 -5.2239E-13 -1.3991E-13 2.3375E-13 1.2775E-14 -3.0553E-14 7.3060E-14 1.6046E-12 -1.8209E-14 1.2775E-14 2.1915E-13 -7.3765E-14 -1.7517E-14 9.8314E-14 1.1109E-14 -3.0553E-14 -7.3765E-14 3.7979E-14 -9.9979E-15 -2.4439E-13 1.0776E-13 7.3060E-14 -1.7517E-14 -9.9979E-15 2.3879E-13 6.2276E-13 -5.2239E-13 1.6046E-12 9.8314E-14 -2.4439E-13 6.2276E-13 1.2853E-11 # lat0 lon0 xBary yBary zBary JD0 -24.749490 23.680335 0.292815 -0.401838 -0.872063 2456930.755398 # Heliocentric elements and errors Epoch: 2456930.5000 = 2014/09/30 Mean Anomaly: 0.42521 +/- 0.005 Argument of Peri: 250.37500 +/- 0.017 Long of Asc Node: 133.21600 +/- 0.001 Inclination: 25.47037 +/- 0.000 Eccentricity: 0.48319999 +/- 0.0001 Semi-Major Axis: 69.43002198 +/- 0.0110 Time of Perihelion: 2456680.9149 +/- 3.1 Perihelion: 35.88143576 +/- 0.0077 Aphelion: 102.97860820 +/- 0.0171 Period (y) 578.5344 +/- 0.14 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.11221201 +/- 0.0005 Ecliptic Y 12.88941677 +/- 0.0002 Ecliptic Z -14.65755052 +/- 0.0003 Ecliptic XDOT -0.00153137 +/- 0.0000 Ecliptic YDOT 0.00310694 +/- 0.0000 Ecliptic ZDOT -0.00048179 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.88490162 +/- 0.0004 Geocenter to KBO 35.01103023 +/- 0.0006 # Hcoef: 7.34
The following table shows the complete astrometric record for 16TA95. 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 (16TA95) followed by the observatory code and reference code for the source of the astrometry.
2014 09 30.25462 02 04 17.600 -13 49 43.19 23.4g 16TA95 W84 C~55aH 2014 11 03.28160 02 01 26.569 -14 07 50.56 22.2z 16TA95 W84 C~55aH 2014 11 21.23269 01 59 59.093 -14 11 07.70 22.8i 16TA95 W84 C~55aH 2014 11 21.23407 01 59 59.085 -14 11 07.69 23.3g 16TA95 W84 C~55aH 2014 12 16.16982 01 58 28.058 -14 07 13.67 23.0r 16TA95 W84 C~55aH 2014 12 24.14389 01 58 10.048 -14 03 57.45 22.8i 16TA95 W84 C~55aH 2016 09 08.31048 02 22 10.710 -12 31 40.14 23.0r 16TA95 W84 C~55aH 2016 09 08.31184 02 22 10.717 -12 31 40.29 22.5i 16TA95 W84 C~55aH 2016 09 08.31321 02 22 10.701 -12 31 40.33 24.1g 16TA95 W84 C~55aH 2016 10 08.22812 02 20 15.950 -12 53 53.08 23.1r 16TA95 807 C~2AEF 2016 10 09.28919 02 20 10.894 -12 54 33.96 22.7r 16TA95 807 C~2AEF 2016 11 19.23003 02 16 42.716 -13 10 37.64 22.3z 16TA95 W84 C~55aH 2016 12 07.20257 02 15 25.202 -13 09 53.00 22.9i 16TA95 W84 C~55aH 2016 12 25.13893 02 14 31.836 -13 04 05.85 23.1r 16TA95 W84 C~55aH 2016 12 25.14030 02 14 31.841 -13 04 05.79 23.5g 16TA95 W84 C~55aH 2017 10 13.31554 02 28 06.729 -12 24 49.81 23.0z 16TA95 W84 C~55aH 2017 10 13.31691 02 28 06.729 -12 24 50.03 23.1r 16TA95 W84 C~55aH 2017 12 23.14773 02 22 45.471 -12 34 02.91 22.7i 16TA95 W84 C~55aH 2017 12 23.14910 02 22 45.472 -12 34 02.90 23.0r 16TA95 W84 C~55aH 2017 12 23.15047 02 22 45.444 -12 34 02.79 22.9g 16TA95 W84 C~55aH 2018 10 19.31239 02 35 48.960 -11 55 17.05 23.2r 16TA95 W84 C~55aH 2018 10 19.31375 02 35 48.953 -11 55 17.15 23.7g 16TA95 W84 C~55aH 2018 10 21.21478 02 35 39.384 -11 56 19.09 21.3z 16TA95 W84 C~55aH 2018 11 07.25771 02 34 10.774 -12 03 39.87 22.8i 16TA95 W84 C~55aH
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 0.05 0.00 -0.02
2 0.0932 -2715.62 -0.09 -78.07 -0.18
3 0.1423 -3970.38 0.01 211.80 -0.04
4 0.1423 -3970.48 -0.01 211.86 -0.02
5 0.2106 -5114.33 -0.04 919.59 0.02
6 0.2324 -5285.48 0.05 1198.81 -0.04
7 1.9413 16303.95 0.10 -1689.49 0.01
8 1.9413 16303.98 0.22 -1689.67 -0.13
9 1.9413 16303.75 0.06 -1689.61 -0.04
10 2.0232 14226.13 -0.30 -2261.02 0.39
11 2.0261 14141.72 -0.13 -2269.82 0.36
12 2.1382 10952.08 0.20 -1974.64 0.04
13 2.1874 9922.29 -0.04 -1495.32 -0.03
14 2.2365 9335.20 -0.06 -873.87 -0.05
15 2.2365 9335.29 0.05 -873.85 -0.08
16 3.0364 21300.35 -0.07 -3378.35 0.14
17 3.0364 21300.26 -0.04 -3378.55 -0.06
18 3.2304 16719.03 0.08 -2021.53 -0.05
19 3.2304 16719.05 0.13 -2021.52 -0.10
20 3.2304 16718.71 -0.17 -2021.26 0.11
21 4.0522 28324.33 -0.01 -4482.57 -0.12
22 4.0522 28324.19 -0.03 -4482.62 -0.17
23 4.0574 28167.79 -0.02 -4482.42 0.07
24 4.1040 26775.51 0.07 -4359.23 -0.03
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.
16TA95 quality flag:3 Type: 7:2EEEEE 7:2EEEEE 7:2EEEEE axisobj 70.602 70.637 70.567 ecceobj 0.492 0.492 0.492 incobj 25.446 25.446 25.446 qmin 35.089 34.069 35.338 qmax 105.491 106.611 105.283 amean 69.408 69.408 69.408 amin 68.411 68.366 68.361 amax 70.824 70.815 70.791 emean 0.475 0.482 0.469 emin 0.461 0.465 0.455 emax 0.492 0.508 0.492 imean 24.605 24.021 25.028 imin 23.715 22.337 23.937 imax 25.076 24.797 25.485 excite_mean 0.632 0.631 0.632 fracstop 1.000 1.000 1.000 cjmean 2.863 2.863 2.863 libcent 0 179.1 180.1 179.0 libamp 0 102.9 110.1 96.4 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 269.3 281.1 262.4 kozaiamp 21.7 35.7 13.6