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: 15KL419 # Created Sun Oct 19 01:11:02 2025 # Orbit generated from Bernstein formalism # Fitting 26 observations of 26 # Arc: 0.87y # First observation: 2015/05/21 # Last observation: 2016/04/04 Preliminary a, adot, b, bdot, g, gdot: -0.000032 0.024490 0.000002 -0.003155 0.024706 0.000000 # Chi-squared of fit: 9.70 DOF: 46 RMS: 0.11 # Min/Max residuals: -0.23 0.26 # Exact a, adot, b, bdot, g, gdot: 1.582085E-05 2.425904E-02 -1.764634E-06 -3.153476E-03 2.503026E-02 -1.198277E-03 # Covariance matrix: 1.5952E-13 9.5542E-13 2.6786E-14 -1.5000E-13 6.1424E-13 4.1883E-11 9.5542E-13 1.3796E-10 1.9756E-12 -1.5696E-11 4.5550E-11 4.3431E-09 2.6786E-14 1.9756E-12 1.3530E-13 -3.6536E-13 7.1468E-13 6.4156E-11 -1.5000E-13 -1.5696E-11 -3.6536E-13 2.1835E-12 -5.3365E-12 -4.9962E-10 6.1424E-13 4.5550E-11 7.1468E-13 -5.3365E-12 1.6459E-11 1.4786E-09 4.1883E-11 4.3431E-09 6.4156E-11 -4.9962E-10 1.4786E-09 1.3830E-07 # lat0 lon0 xBary yBary zBary JD0 14.695848 -140.010279 -0.345236 0.241010 -0.918581 2457163.879558 # Heliocentric elements and errors Epoch: 2457160.5000 = 2015/05/18 Mean Anomaly: 262.27024 +/- 4.543 Argument of Peri: 219.23865 +/- 4.401 Long of Asc Node: 102.31041 +/- 0.015 Inclination: 16.19116 +/- 0.002 Eccentricity: 0.03814057 +/- 0.0148 Semi-Major Axis: 40.60935864 +/- 0.0445 Time of Perihelion: 2482820.8127 +/- 1192.1 Perihelion: 39.06049447 +/- 0.6018 Aphelion: 42.15822281 +/- 0.6021 Period (y) 258.7899 +/- 0.43 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -30.11665614 +/- 0.0048 Ecliptic Y -25.71025894 +/- 0.0040 Ecliptic Z 10.13523487 +/- 0.0016 Ecliptic XDOT 0.00173257 +/- 0.0000 Ecliptic YDOT -0.00201390 +/- 0.0000 Ecliptic ZDOT -0.00036683 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.87485018 +/- 0.0044 Geocenter to KBO 39.95164228 +/- 0.0065 # Hcoef: 6.90
The following table shows the complete astrometric record for 15KL419. 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 (15KL419) followed by the observatory code and reference code for the source of the astrometry.
2015 05 21.37878 14 48 40.44 -00 49 54.0 22.5i 15KL419 T09 C~8SW1 2015 05 21.38756 14 48 40.41 -00 49 54.0 22.5i 15KL419 T09 C~8SW1 2015 05 21.39564 14 48 40.37 -00 49 53.8 22.6i 15KL419 T09 C~8SW1 2015 05 21.42256 14 48 40.26 -00 49 53.5 22.6i 15KL419 T09 C~8SW1 2015 05 26.29897 14 48 18.27 -00 48 59.0 22.7y 15KL419 T09 C~8SW1 2015 05 26.36079 14 48 17.99 -00 48 58.4 22.5y 15KL419 T09 C~8SW1 2015 05 26.42612 14 48 17.71 -00 48 57.5 22.4y 15KL419 T09 C~8SW1 2015 05 26.43645 14 48 17.65 -00 48 57.4 22.2y 15KL419 T09 C~8SW1 2015 05 26.44517 14 48 17.61 -00 48 57.5 22.6y 15KL419 T09 C~8SW1 2015 05 26.45388 14 48 17.57 -00 48 57.5 22.5y 15KL419 T09 C~8SW1 2015 05 26.46546 14 48 17.53 -00 48 57.4 22.7y 15KL419 T09 C~8SW1 2015 07 12.25545 14 45 50.82 -00 51 21.6 22.6z 15KL419 T09 C~8SW1 2015 07 12.27784 14 45 50.78 -00 51 22.1 22.8z 15KL419 T09 C~8SW1 2015 07 12.29403 14 45 50.76 -00 51 22.4 22.8z 15KL419 T09 C~8SW1 2015 07 12.31304 14 45 50.74 -00 51 22.6 22.8z 15KL419 T09 C~8SW1 2015 07 12.35079 14 45 50.67 -00 51 23.3 22.7z 15KL419 T09 C~8SW1 2016 03 12.53503 14 58 30.47 -01 52 42.3 22.8z 15KL419 T09 C~94qP 2016 03 12.60279 14 58 30.29 -01 52 40.3 23.9z 15KL419 T09 C~94qP 2016 03 15.54539 14 58 23.00 -01 51 20.6 23.1y 15KL419 T09 C~94qP 2016 03 15.61316 14 58 22.82 -01 51 18.8 23.0y 15KL419 T09 C~94qP 2016 03 15.62663 14 58 22.77 -01 51 18.3 22.9y 15KL419 T09 C~94qP 2016 03 15.62932 14 58 22.75 -01 51 18.3 23.4y 15KL419 T09 C~94qP 2016 04 04.59952 14 57 16.59 -01 42 08.5 23.6g 15KL419 T09 C~94qP 2016 04 04.61014 14 57 16.53 -01 42 08.2 23.9g 15KL419 T09 C~94qP 2016 04 04.61224 14 57 16.53 -01 42 08.2 24.1g 15KL419 T09 C~94qP 2016 04 04.62283 14 57 16.50 -01 42 07.9 23.7g 15KL419 T09 C~94qP
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 -0.10 0.00 -0.05
2 0.0000 -0.43 0.09 -0.14 -0.10
3 0.0000 -1.06 0.02 -0.13 -0.02
4 0.0001 -2.72 0.26 -0.35 0.02
5 0.0135 -333.46 -0.08 -48.97 -0.05
6 0.0136 -337.64 -0.10 -49.68 -0.06
7 0.0138 -341.91 0.04 -50.10 0.25
8 0.0138 -342.80 -0.15 -50.28 0.18
9 0.0139 -343.34 -0.11 -50.56 0.00
10 0.0139 -343.91 -0.09 -50.74 -0.08
11 0.0139 -344.52 0.08 -50.83 -0.04
12 0.1420 -2396.32 0.01 -859.09 0.10
13 0.1421 -2396.74 -0.03 -859.75 -0.06
14 0.1421 -2396.93 0.05 -860.13 -0.08
15 0.1422 -2397.16 0.14 -860.41 0.06
16 0.1423 -2397.94 -0.01 -861.40 -0.09
17 0.8108 9581.96 0.18 -897.12 -0.16
18 0.8110 9578.77 -0.07 -896.03 -0.05
19 0.8191 9450.15 0.15 -853.25 0.10
20 0.8193 9447.03 0.19 -852.35 0.07
21 0.8193 9446.16 -0.04 -852.10 0.13
22 0.8193 9445.87 -0.20 -852.19 0.00
23 0.8740 8331.68 0.03 -629.58 0.02
24 0.8740 8330.73 -0.23 -629.56 -0.05
25 0.8740 8330.73 -0.09 -629.56 -0.06
26 0.8740 8330.21 0.09 -629.42 0.01
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.
15KL419 quality flag:2 Type: CLASSICAL SCATEXTD CLASSICAL axisobj 40.251 40.374 40.214 ecceobj 0.044 0.082 0.032 incobj 16.186 16.193 16.185 qmin 38.117 36.438 38.541 qmax 43.151 45.012 42.655 amean 40.528 40.644 40.490 amin 40.222 40.318 40.196 amax 40.830 40.979 40.799 emean 0.036 0.074 0.025 emin 0.019 0.048 0.006 emax 0.057 0.100 0.046 imean 13.990 13.816 14.020 imin 13.062 12.717 13.093 imax 15.345 15.281 15.369 excite_mean 0.245 0.250 0.244 fracstop 1.000 1.000 1.000 cjmean 2.994 2.992 2.994 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 181.0 183.7 181.2 kozaiamp 180.0 179.9 180.0