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: 14UK277 # Created Sat Apr 27 01:16:38 2024 # Orbit generated from Bernstein formalism # Fitting 13 observations of 13 # Arc: 3.90y # First observation: 2014/10/21 # Last observation: 2018/09/14 Preliminary a, adot, b, bdot, g, gdot: -0.000336 0.026207 -0.000104 0.006693 0.024954 0.000000 # Chi-squared of fit: 5.06 DOF: 20 RMS: 0.11 # Min/Max residuals: -0.21 0.25 # Exact a, adot, b, bdot, g, gdot: 1.687445E-05 2.570819E-02 4.677631E-06 6.575047E-03 2.482948E-02 -4.372436E-03 # Covariance matrix: 4.5068E-13 -3.4728E-13 2.4765E-14 -5.5472E-14 -1.2835E-14 -1.9968E-12 -3.4728E-13 5.5180E-13 -5.8462E-14 1.1996E-13 1.5179E-13 4.3103E-12 2.4765E-14 -5.8462E-14 3.3616E-13 -1.1975E-13 -5.6210E-14 -5.6172E-13 -5.5472E-14 1.1996E-13 -1.1975E-13 8.0234E-14 6.5342E-14 1.0756E-12 -1.2835E-14 1.5179E-13 -5.6210E-14 6.5342E-14 6.9863E-13 2.3092E-12 -1.9968E-12 4.3103E-12 -5.6172E-13 1.0756E-12 2.3092E-12 3.8590E-11 # lat0 lon0 xBary yBary zBary JD0 -11.757172 24.254364 -0.055924 -0.202717 -0.974867 2456951.788308 # Heliocentric elements and errors Epoch: 2456950.5000 = 2014/10/20 Mean Anomaly: 333.90102 +/- 0.023 Argument of Peri: 6.30631 +/- 0.046 Long of Asc Node: 62.11706 +/- 0.001 Inclination: 18.33405 +/- 0.000 Eccentricity: 0.27442631 +/- 0.0002 Semi-Major Axis: 53.18184500 +/- 0.0120 Time of Perihelion: 2467220.3605 +/- 8.4 Perihelion: 38.58734743 +/- 0.0145 Aphelion: 67.77634257 +/- 0.0192 Period (y) 387.8406 +/- 0.13 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 36.83138447 +/- 0.0012 Ecliptic Y 16.65914556 +/- 0.0005 Ecliptic Z -8.20641216 +/- 0.0003 Ecliptic XDOT -0.00146461 +/- 0.0000 Ecliptic YDOT 0.00244653 +/- 0.0000 Ecliptic ZDOT 0.00080814 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.24831164 +/- 0.0011 Geocenter to KBO 40.27470850 +/- 0.0014 # Hcoef: 7.51
The following table shows the complete astrometric record for 14UK277. 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 (14UK277) followed by the observatory code and reference code for the source of the astrometry.
2014 10 21.28753 01 47 01.569 -01 32 44.89 23.7r 14UK277 W84 C~55Sg 2014 10 21.28890 01 47 01.562 -01 32 44.62 23.6i 14UK277 W84 C~55Sg 2014 11 16.15940 01 45 04.306 -01 40 00.21 23.2i 14UK277 W84 C~55Sg 2015 08 24.37126 01 55 34.730 -00 15 13.44 23.4r 14UK277 W84 C~55Sg 2016 01 12.06145 01 47 46.190 -00 41 59.19 23.6r 14UK277 W84 C~55Sg 2016 09 10.29392 01 59 47.462 +00 31 14.18 23.9r 14UK277 W84 C~55Sg 2016 11 03.17412 01 55 55.395 +00 09 48.64 24.2r 14UK277 W84 C~55Sg 2016 11 10.13098 01 55 23.360 +00 07 55.16 22.7z 14UK277 W84 C~55Sg 2017 09 18.33799 02 04 22.311 +01 21 56.90 23.7r 14UK277 W84 C~55Sg 2018 09 09.35165 02 09 56.215 +02 19 59.13 23.2r 14UK277 W84 C~55Sg 2018 09 09.35304 02 09 56.208 +02 19 59.12 23.5i 14UK277 W84 C~55Sg 2018 09 14.36371 02 09 40.713 +02 18 02.23 23.5r 14UK277 W84 C~55Sg 2018 09 14.36648 02 09 40.724 +02 18 02.08 24.2g 14UK277 W84 C~55Sg
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 -0.10 0.00 -0.10
2 0.0000 0.00 -0.00 0.29 0.18
3 0.0708 -1796.47 0.08 232.02 0.04
4 0.8407 8865.65 0.00 1540.09 -0.14
5 1.2259 1728.79 -0.03 2595.55 -0.01
6 1.8891 13424.39 0.08 2763.13 -0.00
7 2.0367 9702.18 0.25 2828.59 0.07
8 2.0557 9212.21 -0.21 2897.33 0.02
9 2.9105 18401.25 -0.09 4108.99 -0.15
10 3.8852 24396.66 -0.06 5555.11 0.00
11 3.8852 24396.55 -0.10 5555.14 0.04
12 3.8989 24134.04 -0.04 5529.70 0.13
13 3.8989 24134.14 0.21 5529.50 -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.
14UK277 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 53.743 53.776 53.711 ecceobj 0.279 0.279 0.279 incobj 18.312 18.312 18.312 qmin 37.393 37.505 37.365 qmax 69.651 69.620 69.687 amean 53.210 53.247 53.178 amin 52.678 52.687 52.622 amax 53.860 53.877 53.835 emean 0.279 0.279 0.279 emin 0.264 0.265 0.263 emax 0.294 0.294 0.296 imean 16.905 16.923 16.880 imin 16.307 16.329 16.259 imax 17.421 17.390 17.430 excite_mean 0.403 0.403 0.403 fracstop 1.000 1.000 1.000 cjmean 3.009 3.009 3.008 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 166.4 164.5 170.0 kozaiamp 179.9 180.0 180.0