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: 15RO279 # Created Wed May 8 01:17:18 2024 # Orbit generated from Bernstein formalism # Fitting 46 observations of 46 # Arc: 1.60y # First observation: 2015/06/23 # Last observation: 2017/01/29 Preliminary a, adot, b, bdot, g, gdot: -0.000086 0.022505 0.000001 0.000204 0.023155 0.000000 # Chi-squared of fit: 18.58 DOF: 86 RMS: 0.11 # Min/Max residuals: -0.33 0.27 # Exact a, adot, b, bdot, g, gdot: 1.458864E-05 2.206759E-02 3.691305E-07 2.012626E-04 2.280089E-02 -5.941851E-04 # Covariance matrix: 2.1967E-13 6.9044E-14 -3.5193E-16 3.2625E-15 2.5478E-13 1.0924E-11 6.9044E-14 2.6722E-13 -4.1268E-16 3.8695E-15 3.0560E-13 1.2960E-11 -3.5193E-16 -4.1268E-16 9.7571E-14 -7.7805E-14 -9.3118E-16 -7.6248E-14 3.2625E-15 3.8695E-15 -7.7805E-14 9.0781E-14 7.8124E-15 5.2037E-13 2.5478E-13 3.0560E-13 -9.3118E-16 7.8124E-15 5.4613E-13 2.6091E-11 1.0924E-11 1.2960E-11 -7.6248E-14 5.2037E-13 2.6091E-11 1.7271E-09 # lat0 lon0 xBary yBary zBary JD0 -0.102445 7.558786 1.011091 0.000276 0.103078 2457197.032948 # Heliocentric elements and errors Epoch: 2457190.5000 = 2015/06/17 Mean Anomaly: 307.05038 +/- 0.759 Argument of Peri: 47.76075 +/- 0.961 Long of Asc Node: 17.32937 +/- 0.015 Inclination: 0.53306 +/- 0.001 Eccentricity: 0.06190676 +/- 0.0017 Semi-Major Axis: 45.33812655 +/- 0.0094 Time of Perihelion: 2473590.8876 +/- 234.9 Perihelion: 42.53139016 +/- 0.0754 Aphelion: 48.14486295 +/- 0.0755 Period (y) 305.2837 +/- 0.09 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 43.50408535 +/- 0.0014 Ecliptic Y 4.75382819 +/- 0.0002 Ecliptic Z -0.07834129 +/- 0.0000 Ecliptic XDOT -0.00042171 +/- 0.0000 Ecliptic YDOT 0.00261116 +/- 0.0000 Ecliptic ZDOT 0.00002436 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.76311760 +/- 0.0014 Geocenter to KBO 43.85793708 +/- 0.0014 # Hcoef: 8.37
The following table shows the complete astrometric record for 15RO279. 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 (15RO279) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.53217 00 27 55.658 +02 54 18.89 24.6r 15RO279 568 C~2nvm 2015 06 23.55117 00 27 55.670 +02 54 19.02 24.9r 15RO279 568 C~2nvm 2015 07 14.59185 00 28 04.664 +02 55 16.28 24.5r 15RO279 568 C~2nvm 2015 07 19.57093 00 28 01.493 +02 54 55.75 25.0r 15RO279 568 C~2nvm 2015 08 11.47583 00 27 22.440 +02 50 44.21 24.9r 15RO279 568 C~2nvm 2015 08 11.52038 00 27 22.321 +02 50 43.44 25.0r 15RO279 568 C~2nvm 2015 09 08.38448 00 25 50.326 +02 40 51.51 24.7r 15RO279 568 C~2nvm 2015 09 08.48868 00 25 49.888 +02 40 48.81 24.5r 15RO279 568 C~2nvm 2015 09 08.53090 00 25 49.723 +02 40 47.97 24.8r 15RO279 568 C~2nvm 2015 09 09.50777 00 25 45.861 +02 40 23.09 24.9w 15RO279 568 C~2nvm 2015 09 10.44877 00 25 42.111 +02 39 58.97 24.7w 15RO279 568 C~2nvm 2015 09 16.43207 00 25 17.708 +02 37 22.04 25.1w 15RO279 568 C~2nvm 2015 10 03.35878 00 24 05.625 +02 29 39.01 25.1w 15RO279 568 C~2nvm 2015 10 07.32767 00 23 48.640 +02 27 50.02 24.5r 15RO279 568 C~2nvm 2015 10 07.37987 00 23 48.434 +02 27 48.70 24.7r 15RO279 568 C~2nvn 2015 10 07.38724 00 23 48.399 +02 27 48.36 24.8r 15RO279 568 C~2nvn 2015 11 07.22350 00 21 49.973 +02 15 09.28 25.0w 15RO279 568 C~2nvn 2015 11 07.27597 00 21 49.801 +02 15 08.18 25.0w 15RO279 568 C~2nvn 2015 11 10.35312 00 21 40.265 +02 14 07.38 25.1w 15RO279 568 C~2nvn 2015 12 07.29979 00 20 44.613 +02 08 14.37 24.9w 15RO279 568 C~2nvn 2016 01 01.22912 00 20 45.975 +02 08 29.93 25.1w 15RO279 568 C~2nvn 2016 09 05.54890 00 30 42.702 +03 12 59.68 25.2w 15RO279 568 C~2nvn 2016 09 07.48826 00 30 35.238 +03 12 11.83 25.1w 15RO279 568 C~2nvn 2016 09 07.53459 00 30 35.043 +03 12 10.87 24.6w 15RO279 568 C~2nvn 2016 09 26.56094 00 29 16.303 +03 03 46.43 24.9w 15RO279 568 C~2nvn 2016 10 27.36317 00 27 08.509 +02 50 09.02 24.8w 15RO279 568 C~2nvn 2016 10 27.43514 00 27 08.250 +02 50 07.04 24.8w 15RO279 568 C~2nvn 2016 10 28.31680 00 27 04.957 +02 49 45.89 24.9w 15RO279 568 C~2nvn 2016 10 28.32258 00 27 04.949 +02 49 45.89 25.0w 15RO279 568 C~2nvn 2016 10 28.34764 00 27 04.830 +02 49 45.29 24.9w 15RO279 568 C~2nvn 2016 10 29.28623 00 27 01.372 +02 49 22.86 24.8w 15RO279 568 C~2nvn 2016 10 29.38909 00 27 00.998 +02 49 20.62 25.6w 15RO279 568 C~2nvn 2016 10 30.33565 00 26 57.539 +02 48 58.75 25.0w 15RO279 568 C~2nvn 2016 11 02.24820 00 26 47.192 +02 47 52.76 25.8w 15RO279 568 C~2nvn 2016 11 03.22373 00 26 43.788 +02 47 30.82 25.0w 15RO279 568 C~2nvn 2016 11 03.28691 00 26 43.579 +02 47 29.53 24.7w 15RO279 568 C~2nvn 2016 11 03.33931 00 26 43.406 +02 47 28.36 25.7w 15RO279 568 C~2nvn 2016 11 04.25321 00 26 40.289 +02 47 08.73 25.1w 15RO279 568 C~2nvn 2016 11 04.31874 00 26 40.065 +02 47 07.07 24.9w 15RO279 568 C~2nvn 2016 12 28.23047 00 25 20.422 +02 38 46.71 24.8w 15RO279 568 C~2nvn 2016 12 28.23509 00 25 20.404 +02 38 46.88 25.0w 15RO279 568 C~2nvn 2016 12 28.23971 00 25 20.428 +02 38 47.02 25.0w 15RO279 568 C~2nvn 2016 12 28.24434 00 25 20.438 +02 38 47.03 24.6w 15RO279 568 C~2nvn 2016 12 29.22425 00 25 21.196 +02 38 52.08 25.1w 15RO279 568 C~2nvn 2017 01 02.26962 00 25 25.315 +02 39 19.64 24.8w 15RO279 568 C~2nvn 2017 01 29.23023 00 26 27.821 +02 46 09.02 24.9w 15RO279 568 C~2nvn
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 0.15 0.00 -0.05
2 0.0001 0.22 -0.02 0.05 -0.00
3 0.0577 146.61 -0.04 -0.54 -0.06
4 0.0713 94.86 -0.05 -0.65 -0.07
5 0.1340 -541.97 0.01 -0.72 0.04
6 0.1341 -543.92 -0.05 -0.73 0.02
7 0.2104 -2044.03 0.22 0.06 -0.16
8 0.2107 -2051.13 -0.09 0.18 -0.11
9 0.2108 -2053.73 0.06 0.38 0.08
10 0.2135 -2116.73 -0.00 0.40 0.04
11 0.2161 -2177.88 -0.11 0.45 0.05
12 0.2324 -2575.84 -0.06 0.85 -0.04
13 0.2788 -3751.35 -0.15 2.71 0.06
14 0.2897 -4028.33 -0.18 3.29 0.13
15 0.2898 -4031.69 0.15 3.30 0.11
16 0.2898 -4032.31 0.05 3.20 -0.00
17 0.3742 -5963.84 0.06 8.54 0.01
18 0.3744 -5966.65 0.03 8.55 -0.02
19 0.3828 -6122.10 0.07 9.31 0.05
20 0.4566 -7028.80 -0.02 15.52 -0.00
21 0.5248 -7003.86 -0.03 21.72 -0.06
22 1.2047 2741.47 -0.06 42.72 -0.04
23 1.2100 2619.85 0.12 42.81 -0.06
24 1.2101 2616.79 0.05 43.08 0.19
25 1.2622 1333.98 -0.02 44.67 0.01
26 1.3466 -747.62 0.01 49.38 0.25
27 1.3468 -751.96 0.14 49.09 -0.08
28 1.3492 -805.64 -0.04 49.15 -0.14
29 1.3492 -805.75 0.21 49.20 -0.09
30 1.3493 -807.62 -0.12 49.35 0.04
31 1.3518 -864.08 -0.17 49.21 -0.24
32 1.3521 -870.11 0.06 49.37 -0.15
33 1.3547 -926.36 -0.01 49.74 0.07
34 1.3627 -1094.84 0.19 50.36 0.18
35 1.3653 -1150.36 -0.33 50.35 -0.00
36 1.3655 -1153.75 -0.12 50.40 0.01
37 1.3657 -1156.59 0.02 50.35 -0.08
38 1.3682 -1207.25 -0.00 50.77 0.20
39 1.3683 -1210.99 -0.06 50.57 -0.04
40 1.5159 -2505.00 0.08 62.55 -0.12
41 1.5160 -2505.18 -0.15 62.81 0.14
42 1.5160 -2504.80 0.18 62.80 0.13
43 1.5160 -2504.66 0.27 62.75 0.07
44 1.5187 -2492.22 -0.13 62.89 -0.00
45 1.5297 -2424.63 -0.02 63.81 -0.05
46 1.6036 -1402.45 -0.08 69.72 -0.21
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.
15RO279 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.807 45.826 45.790 ecceobj 0.067 0.071 0.064 incobj 0.531 0.531 0.531 qmin 41.715 41.555 41.862 qmax 49.614 49.829 49.419 amean 45.554 45.571 45.537 amin 45.190 45.205 45.180 amax 45.929 45.952 45.921 emean 0.067 0.071 0.064 emin 0.054 0.058 0.050 emax 0.080 0.084 0.077 imean 1.636 1.634 1.638 imin 1.135 1.134 1.139 imax 2.042 2.045 2.041 excite_mean 0.073 0.077 0.070 fracstop 1.000 1.000 1.000 cjmean 3.114 3.113 3.114 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 187.4 187.5 187.7 kozaiamp 180.0 180.0 179.9