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: 14SL404 # Created Sun Nov 24 02:10:00 2024 # Orbit generated from Bernstein formalism # Fitting 26 observations of 26 # Arc: 4.19y # First observation: 2014/09/22 # Last observation: 2018/12/02 Preliminary a, adot, b, bdot, g, gdot: 0.000139 0.021466 -0.000019 0.001101 0.023357 0.000000 # Chi-squared of fit: 6.29 DOF: 46 RMS: 0.09 # Min/Max residuals: -0.28 0.19 # Exact a, adot, b, bdot, g, gdot: 1.482097E-05 2.161501E-02 4.949719E-07 1.118216E-03 2.335336E-02 1.290530E-03 # Covariance matrix: 2.3797E-13 -1.5557E-13 4.0252E-15 -9.8620E-15 1.1777E-14 -1.3638E-12 -1.5557E-13 3.5652E-13 -2.8954E-14 2.4468E-14 2.9590E-13 4.1186E-12 4.0252E-15 -2.8954E-14 1.7113E-13 -6.3917E-14 -3.6674E-14 -3.5331E-13 -9.8620E-15 2.4468E-14 -6.3917E-14 3.6662E-14 1.6193E-14 3.2379E-13 1.1777E-14 2.9590E-13 -3.6674E-14 1.6193E-14 4.9602E-13 3.4043E-12 -1.3638E-12 4.1186E-12 -3.5331E-13 3.2379E-13 3.4043E-12 5.3345E-11 # lat0 lon0 xBary yBary zBary JD0 -26.409701 14.177931 0.264642 -0.431681 -0.869594 2456922.792718 # Heliocentric elements and errors Epoch: 2456920.5000 = 2014/09/20 Mean Anomaly: 130.12967 +/- 0.188 Argument of Peri: 139.54233 +/- 0.185 Long of Asc Node: 97.59725 +/- 0.001 Inclination: 25.97612 +/- 0.000 Eccentricity: 0.07130621 +/- 0.0002 Semi-Major Axis: 41.66051568 +/- 0.0033 Time of Perihelion: 2421417.9775 +/- 51.0 Perihelion: 38.68986235 +/- 0.0100 Aphelion: 44.63116901 +/- 0.0101 Period (y) 268.9027 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 38.18685170 +/- 0.0011 Ecliptic Y 9.37676691 +/- 0.0003 Ecliptic Z -19.04595560 +/- 0.0006 Ecliptic XDOT -0.00043743 +/- 0.0000 Ecliptic YDOT 0.00249977 +/- 0.0000 Ecliptic ZDOT 0.00005023 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.69104971 +/- 0.0010 Geocenter to KBO 42.82039296 +/- 0.0013 # Hcoef: 7.44
The following table shows the complete astrometric record for 14SL404. 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 (14SL404) followed by the observatory code and reference code for the source of the astrometry.
2014 09 22.29194 01 34 08.31 -18 42 45.7 24.4V 14SL404 W84 C~55SA 2014 09 22.34519 01 34 08.09 -18 42 47.6 14SL404 W84 C~55SA 2014 09 22.37754 01 34 07.95 -18 42 48.7 14SL404 W84 C~55SA 2014 09 30.24336 01 33 34.339 -18 47 12.57 24.7g 14SL404 W84 C~55SA 2015 01 12.07447 01 28 11.879 -18 37 08.64 23.8r 14SL404 W84 C~55SA 2015 10 07.21672 01 37 43.163 -18 16 47.89 23.8i 14SL404 W84 C~55SA 2015 10 07.21811 01 37 43.155 -18 16 47.67 23.8r 14SL404 W84 C~55SA 2015 10 07.21947 01 37 43.140 -18 16 47.88 24.1g 14SL404 W84 C~55SA 2015 10 22.23873 01 36 33.416 -18 22 44.97 22.5z 14SL404 W84 C~55SA 2015 11 07.14576 01 35 20.792 -18 26 08.42 23.6i 14SL404 W84 C~55SA 2015 11 07.14714 01 35 20.787 -18 26 08.50 24.0r 14SL404 W84 C~55SA 2015 12 01.13021 01 33 48.273 -18 24 49.28 23.8r 14SL404 W84 C~55SA 2015 12 01.13295 01 33 48.265 -18 24 49.22 24.5g 14SL404 W84 C~55SA 2016 09 30.27774 01 42 46.930 -17 39 33.51 22.9i 14SL404 W84 C~55SA 2016 09 30.27911 01 42 46.935 -17 39 33.87 24.8r 14SL404 W84 C~55SA 2016 10 03.29288 01 42 33.700 -17 41 07.90 23.7r 14SL404 W84 C~55SA 2016 10 03.29426 01 42 33.697 -17 41 07.74 23.6i 14SL404 W84 C~55SA 2016 12 05.17107 01 38 08.527 -17 50 13.09 23.8r 14SL404 W84 C~55SA 2016 12 05.17244 01 38 08.526 -17 50 13.13 24.0g 14SL404 W84 C~55SA 2017 11 17.12733 01 43 46.489 -17 18 51.60 24.3r 14SL404 W84 C~55SA 2017 11 27.07319 01 43 08.453 -17 18 07.29 23.1i 14SL404 W84 C~55SA 2017 12 08.06658 01 42 33.287 -17 15 44.43 23.6i 14SL404 W84 C~55SA 2017 12 08.06796 01 42 33.285 -17 15 44.26 23.5r 14SL404 W84 C~55SA 2018 09 10.28839 01 53 09.139 -16 18 00.44 23.2r 14SL404 W84 C~55SA 2018 10 18.31033 01 50 33.404 -16 38 26.40 24.2r 14SL404 W84 C~55SA 2018 12 02.09567 01 47 22.920 -16 43 06.61 24.8r 14SL404 W84 C~55SA
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 -0.04 0.00 0.05
2 0.0001 -3.63 -0.01 -0.46 0.01
3 0.0002 -5.89 -0.05 -0.66 0.07
4 0.0218 -549.36 0.09 -47.49 0.01
5 0.3060 -4499.77 -0.08 2352.15 -0.02
6 1.0402 3426.53 -0.01 169.82 -0.13
7 1.0402 3426.52 0.07 170.07 0.12
8 1.0402 3426.23 -0.11 169.97 0.01
9 1.0813 2374.19 -0.08 252.45 -0.07
10 1.1249 1347.80 -0.03 490.09 -0.00
11 1.1249 1347.71 -0.05 490.05 -0.07
12 1.1905 177.82 0.14 1099.21 -0.12
13 1.1905 177.74 0.16 1099.31 -0.10
14 2.0232 8301.28 0.07 405.13 0.18
15 2.0232 8301.19 0.08 404.77 -0.18
16 2.0315 8089.72 -0.09 398.35 0.03
17 2.0315 8089.74 0.04 398.51 0.19
18 2.2036 4413.52 -0.02 1474.31 0.06
19 2.2036 4413.49 -0.00 1474.28 -0.02
20 3.1536 9597.39 0.08 1177.34 0.00
21 3.1808 9120.32 -0.28 1445.83 0.05
22 3.2109 8721.73 -0.00 1786.37 -0.08
23 3.2109 8721.77 0.09 1786.54 0.04
24 3.9671 18504.90 0.02 1054.83 -0.03
25 4.0712 15937.65 0.04 905.79 -0.03
26 4.1939 13328.14 -0.03 1817.34 0.00
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.
14SL404 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.992 42.003 41.982 ecceobj 0.067 0.067 0.067 incobj 25.985 25.985 25.985 qmin 38.065 38.106 38.072 qmax 45.694 45.740 45.678 amean 41.770 41.780 41.760 amin 41.452 41.457 41.445 amax 42.099 42.118 42.100 emean 0.072 0.073 0.072 emin 0.061 0.061 0.061 emax 0.086 0.086 0.086 imean 24.310 24.310 24.310 imin 23.918 23.914 23.919 imax 24.717 24.711 24.720 excite_mean 0.418 0.418 0.418 fracstop 1.000 1.000 1.000 cjmean 2.862 2.862 2.862 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 190.0 190.2 190.1 kozaiamp 180.0 180.0 180.0