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: 14FK72 # Created Thu Apr 25 01:15:41 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 13 observations of 13 # Arc: 6.99y # First observation: 2014/03/25 # Last observation: 2021/03/20 # Chi-squared of fit: 15.04 DOF: 20 RMS: 0.19 # Min/Max residuals: -0.33 0.51 # Exact a, adot, b, bdot, g, gdot: 1.304493E-05 1.486272E-02 2.120420E-06 3.050785E-03 1.872746E-02 4.638436E-03 # Covariance matrix: 4.0479E-13 3.3401E-14 -1.2249E-14 2.0565E-14 6.7526E-13 9.5977E-13 3.3401E-14 5.9895E-13 -5.8832E-14 1.2809E-13 1.0145E-12 6.0317E-12 -1.2249E-14 -5.8832E-14 2.0982E-13 -4.8314E-14 -1.1768E-13 -6.1537E-13 2.0565E-14 1.2809E-13 -4.8314E-14 4.4048E-14 2.3863E-13 1.3319E-12 6.7526E-13 1.0145E-12 -1.1768E-13 2.3863E-13 3.3660E-12 1.1212E-11 9.5977E-13 6.0317E-12 -6.1537E-13 1.3319E-12 1.1212E-11 6.2707E-11 # lat0 lon0 xBary yBary zBary JD0 -4.154635 -171.462227 0.073700 -0.071825 -0.990564 2456741.607438 # Heliocentric elements and errors Epoch: 2456742.5000 = 2014/03/26 Mean Anomaly: 74.69778 +/- 0.073 Argument of Peri: 231.92686 +/- 0.036 Long of Asc Node: 207.61902 +/- 0.001 Inclination: 12.25718 +/- 0.000 Eccentricity: 0.29347595 +/- 0.0004 Semi-Major Axis: 53.97339333 +/- 0.0143 Time of Perihelion: 2426690.5121 +/- 31.7 Perihelion: 38.13350066 +/- 0.0257 Aphelion: 69.81328599 +/- 0.0300 Period (y) 396.5316 +/- 0.16 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -53.66149688 +/- 0.0052 Ecliptic Y -7.97984565 +/- 0.0008 Ecliptic Z -3.86848413 +/- 0.0004 Ecliptic XDOT -0.00038381 +/- 0.0000 Ecliptic YDOT -0.00225715 +/- 0.0000 Ecliptic ZDOT 0.00039584 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 54.38912155 +/- 0.0051 Geocenter to KBO 53.39734569 +/- 0.0052 # Hcoef: 6.78
The following table shows the complete astrometric record for 14FK72. 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 (14FK72) followed by the observatory code and reference code for the source of the astrometry.
2014 03 25.10666 12 24 46.426 -07 12 07.56 14FK72 807 C~1x8j 2014 03 25.17147 12 24 46.199 -07 12 06.28 14FK72 807 C~1x8j 2014 03 25.23756 12 24 45.950 -07 12 04.44 14FK72 807 C~1x8j 2014 05 01.04013 12 22 43.925 -06 57 07.55 14FK72 304 C~1x8j 2014 05 01.12323 12 22 43.709 -06 57 05.72 24.0r 14FK72 304 C~1x8j 2015 04 19.19333 12 26 46.147 -07 12 32.40 14FK72 304 C~1x8j 2015 04 19.23964 12 26 45.985 -07 12 31.21 14FK72 304 C~1x8j 2015 04 20.20812 12 26 42.853 -07 12 07.98 14FK72 304 C~1x8j 2017 05 26.18086 12 31 55.46 -07 20 17.0 23.6R 14FK72 G37 C~2Gid 2017 05 26.24629 12 31 55.34 -07 20 15.1 14FK72 G37 C~2Gid 2021 03 20.356280 12 48 24.229 -08 23 53.00 24.4G 14FK72 G37 C~4i1e 2021 03 20.405520 12 48 24.060 -08 23 51.41 14FK72 G37 C~4i1e 2021 03 20.454600 12 48 23.874 -08 23 50.50 14FK72 G37 C~4i1e
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 -0.06 0.00 0.13
2 0.0002 0.00 0.03 0.00 -0.16
3 0.0004 0.00 -0.13 0.00 0.09
4 0.1011 0.00 -0.12 0.00 0.19
5 0.1013 0.00 0.23 0.00 0.13
6 1.0680 0.00 0.12 0.00 -0.14
7 1.0681 0.00 -0.02 0.00 -0.08
8 1.0708 0.00 -0.05 0.00 -0.32
9 3.1706 0.00 0.02 0.00 -0.33
10 3.1708 0.00 -0.07 0.00 0.51
11 6.9877 0.00 0.11 0.00 -0.29
12 6.9878 0.00 0.10 0.00 0.22
13 6.9879 0.00 -0.19 0.00 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.
14FK72 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 53.554 53.554 53.553 ecceobj 0.294 0.294 0.294 incobj 12.297 12.297 12.297 qmin 37.232 37.199 37.174 qmax 71.015 71.116 71.015 amean 53.764 53.767 53.757 amin 53.231 53.217 53.216 amax 54.426 54.453 54.458 emean 0.293 0.293 0.293 emin 0.280 0.280 0.280 emax 0.306 0.307 0.306 imean 12.768 12.768 12.765 imin 12.326 12.324 12.326 imax 13.336 13.341 13.339 excite_mean 0.367 0.367 0.367 fracstop 1.000 1.000 1.000 cjmean 3.052 3.052 3.052 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 179.0 178.8 178.9 kozaiamp 180.0 179.9 180.0