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: 16FC60 # Created Sun Dec 22 02:10:41 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 31 observations of 31 # Arc: 19.19y # First observation: 2002/02/13 # Last observation: 2021/04/22 # Chi-squared of fit: 59.76 DOF: 56 RMS: 0.25 # Min/Max residuals: -0.69 0.84 # Exact a, adot, b, bdot, g, gdot: 1.744007E-05 3.170063E-02 -1.788039E-06 -3.851474E-03 2.857785E-02 -3.542233E-03 # Covariance matrix: 4.7334E-13 -6.5092E-14 -1.4947E-14 4.9829E-15 -4.6954E-14 -5.7990E-14 -6.5092E-14 1.5523E-14 5.2283E-15 -1.6923E-15 5.8659E-15 1.9877E-14 -1.4947E-14 5.2283E-15 3.4001E-13 -2.3757E-14 -2.3547E-15 8.0409E-15 4.9829E-15 -1.6923E-15 -2.3757E-14 2.0271E-15 1.4198E-16 -2.5403E-15 -4.6954E-14 5.8659E-15 -2.3547E-15 1.4198E-16 1.2653E-13 -3.9660E-15 -5.7990E-14 1.9877E-14 8.0409E-15 -2.5403E-15 -3.9660E-15 3.0068E-14 # lat0 lon0 xBary yBary zBary JD0 -3.559062 155.488263 0.184312 -0.060164 -0.965908 2452318.820542 # Heliocentric elements and errors Epoch: 2452318.5000 = 2002/02/13 Mean Anomaly: 330.40220 +/- 0.006 Argument of Peri: 249.67999 +/- 0.008 Long of Asc Node: 308.71578 +/- 0.000 Inclination: 7.73193 +/- 0.000 Eccentricity: 0.19016907 +/- 0.0000 Semi-Major Axis: 42.49805168 +/- 0.0026 Time of Perihelion: 2460638.2247 +/- 8.8 Perihelion: 34.41623651 +/- 0.0025 Aphelion: 50.57986685 +/- 0.0034 Period (y) 277.0523 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -32.58027638 +/- 0.0004 Ecliptic Y 15.06374806 +/- 0.0002 Ecliptic Z -2.17226984 +/- 0.0000 Ecliptic XDOT -0.00093947 +/- 0.0000 Ecliptic YDOT -0.00291410 +/- 0.0000 Ecliptic ZDOT -0.00034699 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.95990432 +/- 0.0004 Geocenter to KBO 34.99223234 +/- 0.0004 # Hcoef: 7.39
The following table shows the complete astrometric record for 16FC60. 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 (16FC60) followed by the observatory code and reference code for the source of the astrometry.
2002 02 13.319799 10 23 56.44 +06 11 09.6 22.7r 16FC60 645 C~5z86 2002 02 13.320628 10 23 56.44 +06 11 09.8 22.4i 16FC60 645 C~5z86 2002 02 13.323116 10 23 56.42 +06 11 09.7 23.6g 16FC60 645 C~5z86 2010 12 12.529216 11 25 44.33 -02 01 07.1 23.3g 16FC60 T14 C~5z86 2010 12 31.503901 11 25 45.34 -02 05 05.0 22.5i 16FC60 T14 C~5z86 2010 12 31.510900 11 25 45.33 -02 05 05.1 16FC60 T14 C~5z86 2010 12 31.518231 11 25 45.32 -02 05 05.1 23.6g 16FC60 T14 C~5z86 2010 12 31.523993 11 25 45.31 -02 05 05.2 16FC60 T14 C~5z86 2013 04 02.198010 11 33 01.24 -03 26 10.9 21.7z 16FC60 W84 C~5z86 2013 04 02.199511 11 33 01.23 -03 26 10.8 22.1z 16FC60 W84 C~5z86 2015 12 27.328936 11 59 30.30 -06 38 25.8 22.1z 16FC60 W84 C~5z86 2016 03 03.341969 11 56 27.01 -06 31 02.4 22.5i 16FC60 W84 C~5z86 2016 03 30.18968 11 54 04.67 -06 16 58.4 24.2V 16FC60 W84 C~1qoK 2016 03 30.19662 11 54 04.68 -06 16 58.5 16FC60 W84 C~1qoK 2016 03 30.20356 11 54 04.67 -06 16 58.3 16FC60 W84 C~1qoK 2016 03 31.15051 11 53 59.66 -06 16 25.4 16FC60 W84 C~1qoK 2016 03 31.15745 11 53 59.66 -06 16 25.5 16FC60 W84 C~1qoK 2016 03 31.16439 11 53 59.67 -06 16 25.5 16FC60 W84 C~1qoK 2016 04 01.16488 11 53 54.40 -06 15 51.1 16FC60 W84 C~1qoK 2016 04 01.17182 11 53 54.39 -06 15 51.3 16FC60 W84 C~1qoK 2016 04 01.17876 11 53 54.39 -06 15 51.1 16FC60 W84 C~1qoK 2017 03 01.270624 12 03 41.35 -07 28 08.4 23.5g 16FC60 W84 C~5z86 2017 03 02.240885 12 03 36.52 -07 27 43.8 23.0r 16FC60 W84 C~5z86 2018 05 10.981829 12 05 07.92 -07 46 48.0 23.3V 16FC60 W84 C~5z86 2018 05 11.977828 12 05 04.81 -07 46 20.2 23.2V 16FC60 W84 C~5z86 2018 05 16.023385 12 04 53.10 -07 44 31.5 23.4g 16FC60 W84 C~5z86 2019 02 04.309612 12 19 36.40 -09 25 54.6 22.7r 16FC60 W84 C~5z86 2019 02 13.363969 12 19 05.75 -09 24 23.9 16FC60 W84 C~5z86 2019 02 17.272435 12 18 50.46 -09 23 26.9 22.2z 16FC60 W84 C~5z86 2019 03 02.305558 12 17 52.17 -09 19 10.4 22.4z 16FC60 W84 C~5z86 2021 04 22.059983 12 27 48.88 -10 42 28.6 22.5i 16FC60 W84 C~5z86
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 -0.01 0.00 -0.07
2 0.0000 0.00 0.06 0.00 0.10
3 0.0000 0.00 -0.04 0.00 -0.06
4 8.8274 0.00 0.04 0.00 -0.06
5 8.8794 0.00 -0.01 0.00 0.02
6 8.8794 0.00 -0.05 0.00 -0.04
7 8.8794 0.00 -0.08 0.00 0.01
8 8.8794 0.00 -0.14 0.00 -0.06
9 11.1318 0.00 -0.08 0.00 -0.13
10 11.1318 0.00 -0.12 0.00 -0.08
11 13.8672 0.00 0.07 0.00 -0.15
12 14.0507 0.00 -0.13 0.00 0.02
13 14.1242 0.00 -0.69 0.00 0.36
14 14.1242 0.00 0.02 0.00 0.02
15 14.1243 0.00 0.42 0.00 -0.01
16 14.1268 0.00 -0.48 0.00 0.62
17 14.1269 0.00 0.07 0.00 0.28
18 14.1269 0.00 0.77 0.00 0.04
19 14.1296 0.00 -0.11 0.00 0.28
20 14.1296 0.00 0.29 0.00 -0.15
21 14.1297 0.00 0.84 0.00 -0.19
22 15.0444 0.00 -0.23 0.00 -0.04
23 15.0470 0.00 -0.19 0.00 -0.17
24 16.2373 0.00 -0.03 0.00 -0.05
25 16.2400 0.00 -0.16 0.00 -0.05
26 16.2511 0.00 -0.05 0.00 -0.00
27 16.9746 0.00 -0.02 0.00 -0.01
28 16.9994 0.00 0.30 0.00 -0.43
29 17.0101 0.00 -0.02 0.00 0.01
30 17.0458 0.00 -0.09 0.00 0.04
31 19.1861 0.00 -0.26 0.00 -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.
16FC60 quality flag:3 Type: 5:3EE 5:3EE 5:3EE axisobj 42.174 42.174 42.174 ecceobj 0.185 0.185 0.185 incobj 7.751 7.751 7.751 qmin 33.638 33.655 33.588 qmax 51.525 51.495 51.485 amean 42.327 42.327 42.328 amin 41.906 41.908 41.905 amax 42.830 42.830 42.830 emean 0.184 0.184 0.184 emin 0.158 0.158 0.158 emax 0.204 0.204 0.204 imean 9.657 9.664 9.658 imin 8.909 8.957 8.873 imax 10.659 10.658 10.660 excite_mean 0.249 0.249 0.249 fracstop 1.000 1.000 1.000 cjmean 3.008 3.008 3.008 libcent 0 180.6 181.0 182.7 libamp 0 75.8 75.8 76.4 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 183.9 183.4 184.5 kozaiamp 180.0 180.0 180.0