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: 14FF72 # Created Wed Apr 24 01:15:42 2024 # Orbit generated from Bernstein formalism # Fitting 11 observations of 11 # Arc: 1.07y # First observation: 2014/03/24 # Last observation: 2015/04/19 Preliminary a, adot, b, bdot, g, gdot: -0.000021 0.011351 -0.000004 -0.004341 0.016815 0.000000 # Chi-squared of fit: 4.77 DOF: 16 RMS: 0.12 # Min/Max residuals: -0.22 0.25 # Exact a, adot, b, bdot, g, gdot: 1.168468E-05 1.143812E-02 -5.268379E-06 -4.370871E-03 1.702762E-02 2.304925E-03 # Covariance matrix: 4.0938E-13 2.0427E-13 -6.5984E-14 -1.9365E-13 8.9066E-13 5.0937E-11 2.0427E-13 1.5919E-11 2.2291E-13 -7.7430E-12 9.3616E-12 2.0732E-09 -6.5984E-14 2.2291E-13 2.5702E-13 -3.7422E-13 -1.2081E-13 3.4698E-11 -1.9365E-13 -7.7430E-12 -3.7422E-13 4.6322E-12 -4.6340E-12 -1.0561E-09 8.9066E-13 9.3616E-12 -1.2081E-13 -4.6340E-12 7.9352E-12 1.2375E-09 5.0937E-11 2.0732E-09 3.4698E-11 -1.0561E-09 1.2375E-09 2.8284E-07 # lat0 lon0 xBary yBary zBary JD0 -17.907528 161.084124 -0.374965 -0.283436 -0.877578 2456740.516568 # Heliocentric elements and errors Epoch: 2456740.5000 = 2014/03/24 Mean Anomaly: 124.33763 +/- 6.777 Argument of Peri: 76.84108 +/- 5.975 Long of Asc Node: 302.86416 +/- 0.028 Inclination: 27.00102 +/- 0.014 Eccentricity: 0.26515649 +/- 0.0195 Semi-Major Axis: 50.18835141 +/- 0.5483 Time of Perihelion: 2411886.3220 +/- 2331.8 Perihelion: 36.88058434 +/- 1.0578 Aphelion: 63.49611849 +/- 1.1991 Period (y) 355.5598 +/- 5.83 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -53.86060722 +/- 0.0087 Ecliptic Y 18.06173482 +/- 0.0030 Ecliptic Z -18.05814135 +/- 0.0030 Ecliptic XDOT -0.00073100 +/- 0.0001 Ecliptic YDOT -0.00169870 +/- 0.0000 Ecliptic ZDOT -0.00078256 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 59.60946018 +/- 0.0080 Geocenter to KBO 58.72811087 +/- 0.0097 # Hcoef: 6.86
The following table shows the complete astrometric record for 14FF72. 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 (14FF72) followed by the observatory code and reference code for the source of the astrometry.
2014 03 24.01579 10 23 02.112 -09 10 20.47 14FF72 807 C~1x8j 2014 03 24.07833 10 23 01.918 -09 10 19.52 14FF72 807 C~1x8j 2014 03 24.13605 10 23 01.763 -09 10 18.21 14FF72 807 C~1x8j 2014 05 01.05722 10 21 39.013 -08 55 37.25 14FF72 304 C~1x8j 2014 05 01.13849 10 21 38.909 -08 55 35.37 24.6r 14FF72 304 C~1x8j 2014 05 02.00056 10 21 37.912 -08 55 17.20 14FF72 304 C~1x8j 2014 05 02.06089 10 21 37.850 -08 55 15.72 14FF72 304 C~1x8j 2014 07 19.97014 10 23 14.820 -08 45 23.99 14FF72 304 C~1x8j 2015 04 18.01980 10 24 03.794 -09 29 21.40 14FF72 304 C~1x8j 2015 04 18.12756 10 24 03.571 -09 29 18.84 14FF72 304 C~1x8j 2015 04 19.02489 10 24 01.843 -09 28 57.73 14FF72 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 -0.22 0.00 0.25
2 0.0002 -3.02 -0.07 -0.22 -0.21
3 0.0003 -5.64 0.24 0.12 -0.10
4 0.1042 -1474.89 0.12 346.64 -0.01
5 0.1044 -1477.03 0.01 347.78 0.10
6 0.1067 -1497.62 -0.08 358.93 -0.14
7 0.1069 -1499.04 -0.03 359.95 0.10
8 0.3229 -396.24 0.03 1455.33 0.02
9 1.0678 1278.71 0.06 -707.27 0.02
10 1.0681 1274.69 -0.03 -706.16 -0.00
11 1.0705 1243.01 -0.04 -696.36 -0.03
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.
14FF72 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 49.935 52.117 48.879 ecceobj 0.271 0.335 0.232 incobj 27.061 27.104 27.018 qmin 35.210 33.572 37.020 qmax 65.436 72.299 61.590 amean 50.044 52.423 49.047 amin 49.565 51.749 48.600 amax 50.614 53.182 49.591 emean 0.278 0.336 0.226 emin 0.259 0.315 0.210 emax 0.294 0.360 0.243 imean 28.226 28.549 28.622 imin 27.747 27.917 28.336 imax 28.766 29.321 29.050 excite_mean 0.549 0.584 0.530 fracstop 1.000 1.000 1.000 cjmean 2.783 2.757 2.796 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 173.7 193.2 190.8 kozaiamp 180.0 179.9 179.9