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: 15OU194 # Created Mon Jul 7 01:10:45 2025 # Orbit generated from Bernstein formalism # Fitting 34 observations of 34 # Arc: 3.41y # First observation: 2015/07/12 # Last observation: 2018/12/07 Preliminary a, adot, b, bdot, g, gdot: 0.000343 0.064031 -0.000081 -0.000076 0.048644 0.000000 # Chi-squared of fit: 25.02 DOF: 62 RMS: 0.15 # Min/Max residuals: -0.35 0.33 # Exact a, adot, b, bdot, g, gdot: 2.090308E-05 6.486481E-02 -7.556538E-07 -2.662739E-04 4.716465E-02 6.303555E-03 # Covariance matrix: 1.2146E-13 -2.7702E-13 -1.1753E-14 2.4488E-14 1.7319E-13 -2.5210E-12 -2.7702E-13 1.1697E-12 4.8185E-14 -1.0325E-13 -6.4488E-13 1.1252E-11 -1.1753E-14 4.8185E-14 7.1155E-14 -4.4386E-14 -5.1607E-14 5.5815E-13 2.4488E-14 -1.0325E-13 -4.4386E-14 7.1499E-14 9.8802E-14 -1.1611E-12 1.7319E-13 -6.4488E-13 -5.1607E-14 9.8802E-14 9.5979E-13 -8.2659E-12 -2.5210E-12 1.1252E-11 5.5815E-13 -1.1611E-12 -8.2659E-12 1.1915E-10 # lat0 lon0 xBary yBary zBary JD0 12.387119 -25.108332 0.721225 0.154069 -0.701071 2457215.937109 # Heliocentric elements and errors Epoch: 2457210.5000 = 2015/07/07 Mean Anomaly: 45.06863 +/- 0.022 Argument of Peri: 36.46425 +/- 0.029 Long of Asc Node: 243.94338 +/- 0.001 Inclination: 11.98119 +/- 0.000 Eccentricity: 0.08520961 +/- 0.0002 Semi-Major Axis: 23.21625791 +/- 0.0035 Time of Perihelion: 2452095.3469 +/- 2.2 Perihelion: 21.23800968 +/- 0.0057 Aphelion: 25.19450614 +/- 0.0060 Period (y) 111.8656 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 19.09258282 +/- 0.0004 Ecliptic Y -9.74489353 +/- 0.0002 Ecliptic Z 4.54827707 +/- 0.0001 Ecliptic XDOT 0.00192207 +/- 0.0000 Ecliptic YDOT 0.00325019 +/- 0.0000 Ecliptic ZDOT 0.00006346 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 21.91292982 +/- 0.0003 Geocenter to KBO 21.20232021 +/- 0.0004 # Hcoef: 11.64
The following table shows the complete astrometric record for 15OU194. 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 (15OU194) followed by the observatory code and reference code for the source of the astrometry.
2015 07 12.43632 22 08 56.80 +01 49 52.2 24.8z 15OU194 T09 C~8suy 2015 07 12.44709 22 08 56.73 +01 49 52.0 24.8z 15OU194 T09 C~8suy 2015 07 12.46334 22 08 56.64 +01 49 51.7 24.5z 15OU194 T09 C~8suy 2015 07 12.46603 22 08 56.62 +01 49 51.7 25.1z 15OU194 T09 C~8suy 2015 07 12.49036 22 08 56.50 +01 49 51.5 24.1z 15OU194 T09 C~8suy 2015 07 15.48896 22 08 39.32 +01 49 30.2 25.5r 15OU194 T09 C~8suy 2015 07 15.50627 22 08 39.23 +01 49 30.4 25.7r 15OU194 T09 C~8suy 2015 07 20.43527 22 08 08.85 +01 48 33.9 24.6i 15OU194 T09 C~8suy 2015 07 20.45573 22 08 08.71 +01 48 33.4 24.9i 15OU194 T09 C~8suy 2015 07 20.49397 22 08 08.46 +01 48 33.1 25.4i 15OU194 T09 C~8suy 2015 07 20.53526 22 08 08.19 +01 48 32.4 25.3i 15OU194 T09 C~8suy 2015 08 09.48734 22 05 43.60 +01 40 25.9 24.1y 15OU194 T09 C~8vGD 2015 08 09.49543 22 05 43.54 +01 40 25.1 24.0y 15OU194 T09 C~8vGE 2015 08 09.50083 22 05 43.51 +01 40 25.2 24.3y 15OU194 T09 C~8vGE 2015 08 11.47147 22 05 27.89 +01 39 16.8 24.9i 15OU194 T09 C~8vGE 2015 08 11.47955 22 05 27.83 +01 39 16.6 24.9i 15OU194 T09 C~8vGE 2015 08 11.48495 22 05 27.79 +01 39 16.5 24.4i 15OU194 T09 C~8vGE 2015 08 11.51190 22 05 27.56 +01 39 15.5 24.8i 15OU194 T09 C~8vGE 2016 07 05.42883 22 23 14.48 +03 08 28.4 25.0i 15OU194 T09 C~8vGE 2016 07 05.44312 22 23 14.40 +03 08 28.2 25.1i 15OU194 T09 C~8vGE 2016 07 05.45676 22 23 14.37 +03 08 28.0 24.9i 15OU194 T09 C~8vGE 2016 07 05.47311 22 23 14.30 +03 08 28.4 24.4i 15OU194 T09 C~8vGE 2016 07 07.43603 22 23 05.73 +03 08 35.0 26.7g 15OU194 T09 C~8vGE 2016 07 07.44735 22 23 05.66 +03 08 35.4 26.6g 15OU194 T09 C~8vGE 2016 07 07.46004 22 23 05.61 +03 08 34.9 26.1g 15OU194 T09 C~8vGE 2016 07 07.46850 22 23 05.55 +03 08 34.9 26.4g 15OU194 T09 C~8vGE 2016 07 12.40104 22 22 41.75 +03 08 32.7 24.3z 15OU194 T09 C~8vGE 2016 07 12.40719 22 22 41.75 +03 08 32.7 24.6z 15OU194 T09 C~8vGE 2016 07 12.41259 22 22 41.71 +03 08 32.7 24.8z 15OU194 T09 C~8vGE 2016 07 12.42876 22 22 41.62 +03 08 32.5 24.9z 15OU194 T09 C~8vGE 2016 07 12.43416 22 22 41.60 +03 08 32.3 25.0z 15OU194 T09 C~8vGE 2017 09 16.319184 22 28 34.79 +03 49 45.6 15OU194 T09 C~8vGE 2018 12 07.212821 22 38 22.32 +04 04 21.5 15OU194 T09 C~8vGE 2018 12 07.280194 22 38 22.55 +04 04 20.6 15OU194 T09 C~8vGE
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 0.17 0.00 0.14
2 0.0000 -1.05 -0.00 0.19 0.05
3 0.0001 -2.42 -0.05 0.40 -0.16
4 0.0001 -2.70 -0.11 0.51 -0.12
5 0.0001 -4.45 0.12 0.97 -0.28
6 0.0084 -252.38 -0.21 73.93 -0.20
7 0.0084 -253.57 0.13 74.60 0.05
8 0.0219 -698.79 0.09 186.07 0.13
9 0.0220 -700.93 -0.07 186.36 -0.03
10 0.0221 -704.54 0.04 187.43 0.18
11 0.0222 -708.56 0.03 188.24 0.07
12 0.0768 -2906.18 -0.04 516.30 0.20
13 0.0768 -2907.31 -0.16 515.87 -0.32
14 0.0768 -2907.69 0.13 516.13 -0.13
15 0.0822 -3150.85 -0.09 536.84 -0.00
16 0.0823 -3151.76 0.02 536.98 0.05
17 0.0823 -3152.35 0.11 537.10 0.12
18 0.0823 -3155.93 -0.06 537.41 0.14
19 0.9829 13709.21 0.16 -215.93 0.33
20 0.9829 13708.01 -0.19 -215.69 0.18
21 0.9829 13707.52 0.12 -215.71 -0.23
22 0.9830 13706.68 0.26 -214.96 0.07
23 0.9884 13588.67 0.14 -162.75 -0.14
24 0.9884 13587.83 0.02 -162.00 0.30
25 0.9884 13586.95 -0.05 -162.20 -0.24
26 0.9885 13586.11 -0.35 -161.88 -0.15
27 1.0020 13251.05 -0.28 -36.08 0.17
28 1.0020 13251.05 0.18 -36.08 0.02
29 1.0020 13250.49 0.02 -35.86 0.10
30 1.0020 13249.16 -0.10 -35.57 -0.01
31 1.0020 13248.80 -0.05 -35.65 -0.23
32 2.1817 19107.64 0.12 387.08 -0.06
33 3.4053 27749.01 -0.10 -1935.18 -0.06
34 3.4055 27751.96 0.06 -1937.26 0.04
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.
15OU194 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 23.239 23.258 23.220 ecceobj 0.085 0.086 0.084 incobj 12.002 12.002 12.002 qmin 17.911 18.626 18.407 qmax 28.735 27.905 28.300 amean 23.280 23.244 23.209 amin 22.992 21.026 22.350 amax 23.554 23.609 23.530 emean 0.138 0.135 0.118 emin 0.035 0.015 0.013 emax 0.225 0.188 0.209 imean 11.585 11.420 13.040 imin 9.538 9.108 9.120 imax 13.583 13.843 18.462 excite_mean 0.246 0.242 0.258 fracstop 0.264 0.107 0.306 cjmean 2.998 3.000 2.993 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 126.3 104.3 126.5 kozaiamp 178.5 151.7 180.0