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: 14TU85 # Created Mon Apr 28 01:10:07 2025 # Orbit generated from Bernstein formalism # Fitting 17 observations of 17 # Arc: 37.75d # First observation: 2014/09/22 # Last observation: 2014/10/30 Preliminary a, adot, b, bdot, g, gdot: 0.000001 0.034840 0.000000 0.000019 0.029196 0.000000 # Chi-squared of fit: 7.71 DOF: 28 RMS: 0.12 # Min/Max residuals: -0.19 0.31 # Exact a, adot, b, bdot, g, gdot: 1.853688E-05 3.414537E-02 -4.089114E-07 -1.582620E-05 2.899889E-02 3.693206E-03 # Covariance matrix: 2.8072E-13 2.3808E-11 3.3614E-14 1.4973E-12 5.8500E-12 6.4351E-10 2.3808E-11 7.8178E-08 7.3652E-11 4.8539E-09 1.3740E-08 3.7127E-07 3.3614E-14 7.3652E-11 2.7834E-13 2.0463E-12 1.3121E-11 4.2115E-10 1.4973E-12 4.8539E-09 2.0463E-12 3.5368E-10 8.5104E-10 2.1953E-08 5.8500E-12 1.3740E-08 1.3121E-11 8.5104E-10 2.4398E-09 7.5165E-08 6.4351E-10 3.7127E-07 4.2115E-10 2.1953E-08 7.5165E-08 5.9540E-06 # lat0 lon0 xBary yBary zBary JD0 -16.763334 30.814652 0.529027 -0.246756 -0.819596 2456922.962148 # Heliocentric elements and errors Epoch: 2456920.5000 = 2014/09/20 Mean Anomaly: 14.13239 +/- 8.665 Argument of Peri: 243.74430 +/- 16.427 Long of Asc Node: 121.16803 +/- 0.110 Inclination: 16.36510 +/- 0.001 Eccentricity: 0.26767487 +/- 0.0478 Semi-Major Axis: 47.25378769 +/- 1.7378 Time of Perihelion: 2452262.8526 +/- 2844.0 Perihelion: 34.60513627 +/- 2.5924 Aphelion: 59.90243911 +/- 3.1550 Period (y) 324.8352 +/- 17.92 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.36074381 +/- 0.0483 Ecliptic Y 16.90023703 +/- 0.0288 Ecliptic Z -9.94587248 +/- 0.0169 Ecliptic XDOT -0.00136970 +/- 0.0002 Ecliptic YDOT 0.00293488 +/- 0.0001 Ecliptic ZDOT -0.00010188 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 35.30710507 +/- 0.0427 Geocenter to KBO 34.48408349 +/- 0.0587 # Hcoef: 8.51
The following table shows the complete astrometric record for 14TU85. 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 (14TU85) followed by the observatory code and reference code for the source of the astrometry.
2014 09 22.46137 02 17 55.14 -03 59 09.5 23.8i 14TU85 T09 C~8eQD 2014 09 22.54196 02 17 54.80 -03 59 12.7 24.3i 14TU85 T09 C~8eQD 2014 09 22.59771 02 17 54.58 -03 59 14.9 24.0i 14TU85 T09 C~8eQD 2014 09 22.61204 02 17 54.53 -03 59 15.2 23.8i 14TU85 T09 C~8eQD 2014 09 22.62294 02 17 54.49 -03 59 15.7 24.0i 14TU85 T09 C~8eQD 2014 10 01.41911 02 17 16.90 -04 04 43.6 23.7z 14TU85 T09 C~8eQD 2014 10 01.43543 02 17 16.81 -04 04 44.0 23.6z 14TU85 T09 C~8eQD 2014 10 01.46614 02 17 16.66 -04 04 45.0 24.3z 14TU85 T09 C~8eQD 2014 10 13.118119 02 16 20.49 -04 11 33.6 24.7g 14TU85 W84 C~1IXr 2014 10 13.120336 02 16 20.49 -04 11 33.9 24.0r 14TU85 W84 C~1IXr 2014 10 13.126481 02 16 20.45 -04 11 34.0 23.9z 14TU85 W84 C~1IXr 2014 10 26.081267 02 15 12.79 -04 18 10.9 24.3g 14TU85 W84 C~1IXr 2014 10 26.083461 02 15 12.77 -04 18 11.0 23.5r 14TU85 W84 C~1IXr 2014 10 26.089618 02 15 12.76 -04 18 11.1 23.5z 14TU85 W84 C~1IXr 2014 10 30.201273 02 14 50.78 -04 20 00.1 23.5r 14TU85 W84 C~1IXr 2014 10 30.203634 02 14 50.76 -04 20 00.1 23.0i 14TU85 W84 C~1IXr 2014 10 30.207431 02 14 50.74 -04 20 00.4 23.8z 14TU85 W84 C~1IXr
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 0.02 0.00 0.08
2 0.0002 -5.88 -0.19 -1.26 -0.00
3 0.0004 -9.72 -0.12 -2.20 -0.13
4 0.0004 -10.53 0.08 -2.23 0.05
5 0.0004 -11.26 0.12 -2.49 -0.06
6 0.0245 -651.99 0.20 -118.02 -0.19
7 0.0246 -653.39 0.07 -117.93 0.07
8 0.0247 -655.84 0.00 -118.11 0.22
9 0.0566 -1585.31 -0.14 -214.54 0.13
10 0.0566 -1585.41 -0.06 -214.82 -0.14
11 0.0566 -1586.01 -0.14 -214.71 0.00
12 0.0920 -2672.94 0.09 -241.75 -0.03
13 0.0921 -2673.26 -0.04 -241.75 -0.03
14 0.0921 -2673.43 0.31 -241.79 -0.08
15 0.1033 -3019.72 0.01 -231.93 0.04
16 0.1033 -3020.00 -0.07 -231.83 0.13
17 0.1033 -3020.38 -0.14 -232.01 -0.06
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.
14TU85 quality flag:1 Type: SCATNEAR CENTAURS SCATNEAR axisobj 47.780 59.141 43.518 ecceobj 0.276 0.472 0.181 incobj 16.363 16.363 16.366 qmin 32.558 29.945 35.037 qmax 64.705 94.443 51.548 amean 48.007 60.229 43.128 amin 46.843 56.771 42.697 amax 49.088 62.968 43.603 emean 0.288 0.470 0.170 emin 0.245 0.431 0.152 emax 0.321 0.504 0.184 imean 15.459 15.698 15.101 imin 13.761 12.466 14.283 imax 17.309 17.902 15.829 excite_mean 0.393 0.543 0.311 fracstop 1.000 1.000 1.000 cjmean 2.958 2.903 2.976 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 187.2 173.4 177.5 kozaiamp 180.0 180.0 180.0