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: 15OR192 # Created Wed Sep 3 01:10:52 2025 # Orbit generated from Bernstein formalism # Fitting 31 observations of 31 # Arc: 0.84y # First observation: 2014/09/18 # Last observation: 2015/07/22 Preliminary a, adot, b, bdot, g, gdot: -0.000020 0.027803 -0.000000 0.004389 0.025980 0.000000 # Chi-squared of fit: 15.04 DOF: 56 RMS: 0.12 # Min/Max residuals: -0.24 0.38 # Exact a, adot, b, bdot, g, gdot: 1.605977E-05 2.724961E-02 3.457584E-06 4.400460E-03 2.642885E-02 -5.210481E-03 # Covariance matrix: 1.9800E-13 1.2662E-11 5.4063E-15 1.3242E-12 5.2583E-12 3.9236E-10 1.2662E-11 3.2392E-09 4.8503E-13 2.8794E-10 8.7365E-10 8.8250E-08 5.4063E-15 4.8503E-13 8.3043E-14 -4.6728E-14 2.2858E-13 1.5618E-11 1.3242E-12 2.8794E-10 -4.6728E-14 2.6435E-11 8.2973E-11 7.9759E-09 5.2583E-12 8.7365E-10 2.2858E-13 8.2973E-11 2.8644E-10 2.5053E-08 3.9236E-10 8.8250E-08 1.5618E-11 7.9759E-09 2.5053E-08 2.4352E-06 # lat0 lon0 xBary yBary zBary JD0 10.113309 -23.724679 -0.322942 0.167656 -0.939414 2456918.735968 # Heliocentric elements and errors Epoch: 2456910.5000 = 2014/09/10 Mean Anomaly: 310.81772 +/- 2.191 Argument of Peri: 118.08183 +/- 6.105 Long of Asc Node: 289.70145 +/- 0.033 Inclination: 13.36446 +/- 0.007 Eccentricity: 0.20713984 +/- 0.0565 Semi-Major Axis: 43.35163981 +/- 1.0254 Time of Perihelion: 2471153.8746 +/- 383.9 Perihelion: 34.37178793 +/- 2.5808 Aphelion: 52.33149170 +/- 2.7444 Period (y) 285.4411 +/- 10.13 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 35.10294296 +/- 0.0218 Ecliptic Y -15.07341433 +/- 0.0096 Ecliptic Z 6.64424222 +/- 0.0043 Ecliptic XDOT 0.00057131 +/- 0.0001 Ecliptic YDOT 0.00282578 +/- 0.0001 Ecliptic ZDOT 0.00035411 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.77589946 +/- 0.0201 Geocenter to KBO 37.83744540 +/- 0.0242 # Hcoef: 9.18
The following table shows the complete astrometric record for 15OR192. 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 (15OR192) followed by the observatory code and reference code for the source of the astrometry.
2014 09 18.23519 22 17 18.14 +00 12 12.2 25.3g 15OR192 T09 C~90Hi 2014 09 18.24895 22 17 18.07 +00 12 12.1 26.2g 15OR192 T09 C~90Hi 2014 09 18.25107 22 17 18.06 +00 12 11.7 26.2g 15OR192 T09 C~90Hi 2014 09 18.27261 22 17 17.96 +00 12 11.2 25.3g 15OR192 T09 C~90Hi 2014 09 18.28333 22 17 17.90 +00 12 10.9 25.8g 15OR192 T09 C~90Hi 2014 09 18.35657 22 17 17.61 +00 12 08.9 24.7y 15OR192 T09 C~90Hi 2014 09 18.36743 22 17 17.54 +00 12 08.5 25.3y 15OR192 T09 C~90Hi 2014 09 18.37570 22 17 17.49 +00 12 08.2 25.6y 15OR192 T09 C~90Hi 2014 09 22.22908 22 17 00.78 +00 10 15.3 25.1r 15OR192 T09 C~90Hi 2014 09 22.23772 22 17 00.74 +00 10 15.0 25.1r 15OR192 T09 C~90Hi 2014 09 22.24278 22 17 00.70 +00 10 15.0 25.2r 15OR192 T09 C~90Hi 2014 09 22.24493 22 17 00.69 +00 10 14.8 25.2r 15OR192 T09 C~90Hj 2014 09 22.25775 22 17 00.65 +00 10 14.6 25.1r 15OR192 T09 C~90Hj 2014 09 22.31871 22 17 00.38 +00 10 12.6 24.9r 15OR192 T09 C~90Hj 2014 09 22.34435 22 17 00.27 +00 10 12.1 24.3i 15OR192 T09 C~90Hj 2014 09 22.34787 22 17 00.24 +00 10 11.8 24.8i 15OR192 T09 C~90Hj 2014 09 22.36148 22 17 00.21 +00 10 11.3 24.6i 15OR192 T09 C~90Hj 2014 09 22.37509 22 17 00.13 +00 10 10.9 24.4i 15OR192 T09 C~90Hj 2015 07 15.45241 22 27 37.82 +01 22 20.1 25.3r 15OR192 T09 C~8ncn 2015 07 15.46937 22 27 37.74 +01 22 19.9 25.5r 15OR192 T09 C~8ncn 2015 07 15.50847 22 27 37.62 +01 22 19.7 25.2r 15OR192 T09 C~8ncn 2015 07 20.42844 22 27 20.50 +01 21 49.9 24.6i 15OR192 T09 C~8ncn 2015 07 20.56035 22 27 20.00 +01 21 48.9 24.4i 15OR192 T09 C~8ncn 2015 07 21.45521 22 27 16.74 +01 21 41.8 24.4i 15OR192 T09 C~8ncn 2015 07 21.54697 22 27 16.38 +01 21 41.0 24.7i 15OR192 T09 C~8ncn 2015 07 22.42468 22 27 13.12 +01 21 33.8 25.1z 15OR192 T09 C~8nco 2015 07 22.43822 22 27 13.05 +01 21 33.8 24.0z 15OR192 T09 C~8nco 2015 07 22.45708 22 27 13.00 +01 21 33.4 24.6z 15OR192 T09 C~8nco 2015 07 22.48140 22 27 12.91 +01 21 33.1 25.0z 15OR192 T09 C~8nco 2015 07 22.50032 22 27 12.82 +01 21 32.9 24.6z 15OR192 T09 C~8nco 2015 07 22.51655 22 27 12.77 +01 21 32.9 24.4z 15OR192 T09 C~8nco
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 0.05 0.00 -0.17
2 0.0000 -1.01 0.05 0.29 0.16
3 0.0000 -1.30 -0.08 -0.03 -0.16
4 0.0001 -2.88 -0.08 0.05 -0.02
5 0.0001 -3.83 -0.24 0.10 0.06
6 0.0003 -8.61 0.38 -0.18 -0.03
7 0.0004 -9.73 0.06 -0.17 0.00
8 0.0004 -10.54 -0.14 -0.17 0.02
9 0.0109 -285.09 0.15 -14.04 -0.05
10 0.0110 -285.76 0.10 -14.11 -0.08
11 0.0110 -286.32 -0.10 -13.89 0.16
12 0.0110 -286.53 -0.16 -14.02 0.04
13 0.0110 -287.16 0.12 -13.99 0.12
14 0.0112 -291.66 -0.03 -14.37 -0.05
15 0.0113 -293.38 0.08 -14.24 0.18
16 0.0113 -293.91 -0.20 -14.35 0.07
17 0.0113 -294.51 0.17 -14.66 -0.18
18 0.0113 -295.77 -0.12 -14.59 -0.07
19 0.8219 10196.53 0.19 537.19 0.03
20 0.8220 10195.34 -0.17 537.44 0.04
21 0.8221 10193.59 0.01 537.91 -0.05
22 0.8356 9943.00 0.01 603.55 0.02
23 0.8359 9935.64 -0.11 605.35 0.06
24 0.8384 9887.41 0.11 616.52 -0.09
25 0.8386 9882.07 -0.07 617.74 -0.08
26 0.8410 9833.81 0.07 628.82 0.09
27 0.8411 9832.83 -0.14 629.20 0.29
28 0.8411 9831.98 0.08 629.10 -0.05
29 0.8412 9830.61 0.10 629.31 -0.15
30 0.8412 9829.28 -0.15 629.62 -0.09
31 0.8413 9828.58 0.07 629.89 -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.
15OR192 quality flag:1 Type: SCATNEAR CENTAURS SCATNEAR axisobj 43.677 47.654 42.448 ecceobj 0.211 0.363 0.105 incobj 13.358 13.337 13.379 qmin 32.203 28.891 34.947 qmax 57.528 68.004 50.039 amean 43.521 45.179 42.327 amin 42.383 41.827 41.833 amax 45.199 49.147 42.821 emean 0.227 0.317 0.122 emin 0.184 0.243 0.073 emax 0.275 0.389 0.172 imean 12.103 17.311 14.801 imin 5.829 13.758 13.479 imax 16.713 19.867 16.114 excite_mean 0.312 0.436 0.284 fracstop 1.000 1.000 1.000 cjmean 2.978 2.882 2.986 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 176.3 182.4 184.0 kozaiamp 180.0 180.0 180.0