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: 14UN277 # Created Wed May 8 01:16:34 2024 # Orbit generated from Bernstein formalism # Fitting 11 observations of 11 # Arc: 3.89y # First observation: 2014/10/23 # Last observation: 2018/09/14 Preliminary a, adot, b, bdot, g, gdot: -0.000099 0.022605 0.000002 -0.000797 0.024102 0.000000 # Chi-squared of fit: 4.18 DOF: 16 RMS: 0.11 # Min/Max residuals: -0.24 0.23 # Exact a, adot, b, bdot, g, gdot: 1.623060E-05 2.255125E-02 -4.100718E-07 -7.937135E-04 2.368881E-02 1.179495E-04 # Covariance matrix: 7.1997E-13 -4.3603E-13 -3.3124E-15 8.3357E-15 -2.3213E-13 -2.8327E-12 -4.3603E-13 6.8137E-13 8.0456E-15 -2.0055E-14 2.0467E-13 6.6846E-12 -3.3124E-15 8.0456E-15 5.9902E-13 -1.9408E-13 3.1789E-15 8.9923E-14 8.3357E-15 -2.0055E-14 -1.9408E-13 8.1269E-14 -8.4295E-15 -2.2461E-13 -2.3213E-13 2.0467E-13 3.1789E-15 -8.4295E-15 1.0265E-12 3.1570E-12 -2.8327E-12 6.6846E-12 8.9923E-14 -2.2461E-13 3.1570E-12 7.5186E-11 # lat0 lon0 xBary yBary zBary JD0 -2.685375 -1.306797 -0.508383 -0.039991 -0.856375 2456953.693748 # Heliocentric elements and errors Epoch: 2456950.5000 = 2014/10/20 Mean Anomaly: 130.81864 +/- 0.793 Argument of Peri: 100.33528 +/- 0.787 Long of Asc Node: 126.49764 +/- 0.010 Inclination: 3.29972 +/- 0.000 Eccentricity: 0.02059033 +/- 0.0003 Semi-Major Axis: 42.48876800 +/- 0.0070 Time of Perihelion: 2420190.3920 +/- 222.5 Perihelion: 41.61391019 +/- 0.0138 Aphelion: 43.36362581 +/- 0.0140 Period (y) 276.9615 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 43.02285663 +/- 0.0018 Ecliptic Y -0.47108367 +/- 0.0000 Ecliptic Z -1.97785239 +/- 0.0001 Ecliptic XDOT 0.00006430 +/- 0.0000 Ecliptic YDOT 0.00260069 +/- 0.0000 Ecliptic ZDOT -0.00009216 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.07087197 +/- 0.0018 Geocenter to KBO 42.21403300 +/- 0.0018 # Hcoef: 7.29
The following table shows the complete astrometric record for 14UN277. 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 (14UN277) followed by the observatory code and reference code for the source of the astrometry.
2014 10 23.19297 23 59 28.817 -02 59 00.34 24.2r 14UN277 W84 C~55Sg 2014 10 28.19819 23 59 11.090 -03 00 45.68 22.9i 14UN277 W84 C~55Sg 2016 08 26.20647 00 13 02.947 -01 36 08.38 23.9r 14UN277 W84 C~55Sg 2016 09 10.33646 00 12 03.490 -01 43 05.10 23.1i 14UN277 W84 C~55Sg 2017 09 18.23051 00 16 19.360 -01 18 14.62 22.4i 14UN277 W84 C~55Sg 2017 09 18.23188 00 16 19.360 -01 18 14.53 24.5r 14UN277 W84 C~55Sg 2017 10 27.16027 00 13 37.037 -01 35 28.18 23.0z 14UN277 W84 C~55Sg 2017 10 28.15445 00 13 33.421 -01 35 49.72 23.1i 14UN277 W84 C~55Sh 2017 11 09.05875 00 12 54.291 -01 39 35.54 24.0r 14UN277 W84 C~55Sh 2018 09 14.30686 00 21 25.166 -00 47 42.43 23.2r 14UN277 W84 C~55Sh 2018 09 14.30823 00 21 25.167 -00 47 42.44 23.7i 14UN277 W84 C~55Sh
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 -0.24 0.00 -0.02
2 0.0137 -285.53 0.23 9.10 0.16
3 1.8426 13190.14 -0.02 -315.81 -0.07
4 1.8840 12202.66 0.10 -340.79 -0.13
5 2.9050 16334.99 -0.13 -512.46 -0.14
6 2.9050 16335.02 0.00 -512.37 -0.06
7 3.0115 13676.68 0.08 -484.04 0.07
8 3.0143 13618.12 -0.09 -482.06 0.05
9 3.0469 12987.46 0.01 -453.94 -0.03
10 3.8935 21312.50 -0.03 -674.12 0.10
11 3.8935 21312.51 0.08 -674.14 0.08
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.
14UN277 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.829 42.850 42.807 ecceobj 0.017 0.017 0.017 incobj 3.294 3.294 3.294 qmin 41.305 41.324 41.294 qmax 44.107 44.168 44.151 amean 42.653 42.674 42.631 amin 42.328 42.351 42.308 amax 42.982 42.994 42.967 emean 0.012 0.013 0.012 emin 0.000 0.000 0.000 emax 0.028 0.028 0.028 imean 2.552 2.550 2.554 imin 1.479 1.481 1.477 imax 3.542 3.525 3.560 excite_mean 0.047 0.047 0.047 fracstop 1.000 1.000 1.000 cjmean 3.083 3.083 3.083 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 179.4 179.1 180.1 kozaiamp 180.0 180.0 180.0