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: 14FD70 # Created Sun Nov 24 02:09:49 2024 # Orbit generated from Bernstein formalism # Fitting 8 observations of 8 # Arc: 1.64y # First observation: 2014/03/25 # Last observation: 2015/11/15 Preliminary a, adot, b, bdot, g, gdot: -0.000004 0.010532 -0.000009 -0.002851 0.015526 0.000000 # Chi-squared of fit: 4.77 DOF: 10 RMS: 0.14 # Min/Max residuals: -0.36 0.22 # Exact a, adot, b, bdot, g, gdot: 9.546873E-06 1.073869E-02 -2.465882E-06 -2.937458E-03 1.600708E-02 4.255407E-03 # Covariance matrix: 5.1168E-13 8.0395E-13 2.7564E-14 -4.4741E-13 2.4263E-12 7.9419E-11 8.0395E-13 7.7360E-11 1.3207E-12 -2.5877E-11 1.4351E-10 5.0155E-09 2.7564E-14 1.3207E-12 4.8156E-13 -7.9571E-13 2.5263E-12 8.7150E-11 -4.4741E-13 -2.5877E-11 -7.9571E-13 9.2337E-12 -4.8769E-11 -1.6953E-09 2.4263E-12 1.4351E-10 2.5263E-12 -4.8769E-11 2.7003E-10 9.3946E-09 7.9419E-11 5.0155E-09 8.7150E-11 -1.6953E-09 9.3946E-09 3.2762E-07 # lat0 lon0 xBary yBary zBary JD0 -22.436091 163.153182 -0.357713 -0.354579 -0.859090 2456741.518058 # Heliocentric elements and errors Epoch: 2456740.5000 = 2014/03/24 Mean Anomaly: 85.79705 +/- 6.576 Argument of Peri: 110.63632 +/- 3.349 Long of Asc Node: 289.37517 +/- 0.044 Inclination: 26.63249 +/- 0.012 Eccentricity: 0.37504534 +/- 0.0324 Semi-Major Axis: 57.26680391 +/- 1.4556 Time of Perihelion: 2419016.0698 +/- 2508.5 Perihelion: 35.78915584 +/- 2.0639 Aphelion: 78.74445198 +/- 2.7273 Period (y) 433.3738 +/- 16.52 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -56.26013892 +/- 0.0567 Ecliptic Y 16.66333690 +/- 0.0172 Ecliptic Z -23.84291324 +/- 0.0245 Ecliptic XDOT -0.00099827 +/- 0.0001 Ecliptic YDOT -0.00162169 +/- 0.0000 Ecliptic ZDOT -0.00074205 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 63.33525511 +/- 0.0514 Geocenter to KBO 62.47235305 +/- 0.0641 # Hcoef: 6.83
The following table shows the complete astrometric record for 14FD70. 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 (14FD70) followed by the observatory code and reference code for the source of the astrometry.
2014 03 25.01728 10 23 11.832 -14 05 57.71 24.9r 14FD70 807 C~1MjU 2014 03 26.01882 10 23 08.966 -14 05 33.30 14FD70 807 C~1MjU 2014 03 26.07481 10 23 08.837 -14 05 32.16 14FD70 807 C~1MjU 2015 04 19.01783 10 24 16.970 -14 19 11.97 14FD70 304 C~2b7w 2015 04 19.11547 10 24 16.790 -14 19 09.40 24.7r 14FD70 304 C~2b7w 2015 04 20.11271 10 24 15.026 -14 18 43.70 14FD70 304 C~2b7w 2015 11 14.34023 10 31 34.115 -14 45 53.12 14FD70 304 C~2b7w 2015 11 15.34204 10 31 35.263 -14 46 23.21 14FD70 304 C~2b7w
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 0.22 0.00 -0.09
2 0.0027 -47.93 -0.36 6.08 0.04
3 0.0029 -50.10 0.14 6.39 0.03
4 1.0678 1182.73 -0.06 -359.41 -0.05
5 1.0680 1179.32 -0.06 -358.07 0.01
6 1.0708 1145.66 0.11 -344.45 0.10
7 1.6409 7657.52 0.17 626.66 -0.09
8 1.6436 7684.48 -0.16 605.26 0.05
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.
14FD70 quality flag:1 Type: SCATNEAR 3:1EE12:5EEEEEE axisobj 56.948 62.408 53.832 ecceobj 0.379 0.474 0.295 incobj 26.659 26.697 26.621 qmin 34.870 28.109 35.341 qmax 80.243 99.119 73.421 amean 57.061 62.629 53.972 amin 56.455 61.681 53.434 amax 57.864 63.954 54.631 emean 0.367 0.513 0.318 emin 0.347 0.465 0.282 emax 0.387 0.552 0.345 imean 28.637 25.050 27.227 imin 27.988 22.133 26.410 imax 29.425 28.401 28.302 excite_mean 0.604 0.666 0.557 fracstop 1.000 1.000 1.000 cjmean 2.774 2.720 2.814 libcent 0 -180.0 286.1 180.3 libamp 0 -180.0 43.4 80.0 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 180.8 160.7 223.7 kozaiamp 179.9 58.6 180.0