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: 14FM72 # Created Wed May 8 01:15:45 2024 # Orbit generated from Bernstein formalism # Fitting 7 observations of 9 # Arc: 1.07y # First observation: 2014/03/25 # Last observation: 2015/04/19 Preliminary a, adot, b, bdot, g, gdot: 0.000000 0.012338 -0.000001 -0.000228 0.016815 0.000000 # WARNING Fitting with energy constraint # WARNING MRQMIN stopped after 19 iterations -- oscilliatory solution # Chi-squared of fit: 6.61 DOF: 9 RMS: 0.17 # Min/Max residuals: -0.30 0.46 # Exact a, adot, b, bdot, g, gdot: 1.211297E-05 1.253741E-02 -8.391199E-07 -2.315439E-04 1.720375E-02 7.285304E-03 # Covariance matrix: 4.9273E-13 2.2752E-12 -1.4526E-14 -5.1099E-14 2.4191E-12 2.8762E-10 2.2752E-12 1.8779E-09 -5.0532E-12 -3.8807E-11 1.4756E-09 2.0876E-07 -1.4526E-14 -5.0532E-12 4.3922E-13 -3.2077E-13 -4.0060E-12 -5.6057E-10 -5.1099E-14 -3.8807E-11 -3.2077E-13 1.6539E-12 -3.0485E-11 -4.3170E-09 2.4191E-12 1.4756E-09 -4.0060E-12 -3.0485E-11 1.1614E-09 1.6405E-07 2.8762E-10 2.0876E-07 -5.6057E-10 -4.3170E-09 1.6405E-07 2.3221E-05 # lat0 lon0 xBary yBary zBary JD0 -4.664472 -172.258999 0.059882 -0.080712 -0.990812 2456741.607438 # Heliocentric elements and errors Epoch: 2456740.5000 = 2014/03/24 Mean Anomaly: 53.44075 +/- 36.053 Argument of Peri: 143.22388 +/- 13.542 Long of Asc Node: 291.05392 +/- 0.359 Inclination: 4.71334 +/- 0.007 Eccentricity: 0.50641785 +/- 0.2796 Semi-Major Axis: 63.48833049 +/- 24.1687 Time of Perihelion: 2429311.5392 +/- 9854.4 Perihelion: 31.33670647 +/- 21.3850 Aphelion: 95.63995451 +/- 40.5039 Period (y) 505.8818 +/- 288.87 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -58.40085610 +/- 0.1137 Ecliptic Y -7.87669643 +/- 0.0155 Ecliptic Z -4.72697774 +/- 0.0094 Ecliptic XDOT -0.00087891 +/- 0.0008 Ecliptic YDOT -0.00213547 +/- 0.0001 Ecliptic ZDOT -0.00013088 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 59.11891963 +/- 0.1124 Geocenter to KBO 58.12684957 +/- 0.1151 # Hcoef: 6.15
The following table shows the complete astrometric record for 14FM72. 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 (14FM72) followed by the observatory code and reference code for the source of the astrometry.
2014 03 25.10666 12 21 01.044 -07 21 16.89 14FM72 807 C~1x8j 2014 03 25.17147 12 21 00.839 -07 21 15.74 14FM72 807 C~1x8j 2014 03 25.23756 12 21 00.598 -07 21 14.42 14FM72 807 C~1x8j 2014 05 01.02388 12 19 06.179 -07 08 14.12 23.8r 14FM72 304 C~1x8j 2014 05 01.10812 12 19 05.963 -07 08 12.37 14FM72 304 C~1x8j 2014 07 20.00972 12 18 22.630 -06 57 41.70 14FM72 I11 C~1x8j 2015 04 18.17305 12 22 21.392 -07 30 32.66 14FM72 304 C~1x8j 2015 04 18.23449 12 22 21.194 -07 30 31.47 14FM72 304 C~1x8j 2015 04 19.25256 12 22 18.124 -07 30 09.24 14FM72 304 C~1x8j
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 -0.12 0.00 0.13
2 0.0002 -3.26 0.16 -0.16 0.03
3 0.0004 -7.07 -0.04 -0.37 -0.13
4 0.1011 -1879.60 ( 1.05) 38.02 ( 0.73)
5 0.1013 -1883.24 ( 1.17) 38.35 ( 0.88)
6 0.3201 -2726.35 -0.01 359.68 -0.04
7 1.0652 1317.54 -0.01 -35.53 -0.15
8 1.0654 1314.37 -0.06 -35.61 -0.30
9 1.0682 1263.64 0.08 -33.32 0.46
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.
14FM72 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0