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: 15RU279
# Created Sun Nov 24 02:10:25 2024
# Orbit generated from Bernstein formalism
# Fitting 39 observations of 39
# Arc: 2.50y
# First observation: 2015/06/23
# Last observation: 2017/12/23
Preliminary a, adot, b, bdot, g, gdot:
-0.000011 0.025928 0.000003 0.002246 0.024986 0.000000
# Chi-squared of fit: 11.54 DOF: 72 RMS: 0.10
# Min/Max residuals: -0.24 0.20
# Exact a, adot, b, bdot, g, gdot:
1.647270E-05 2.527751E-02 1.562287E-06 2.206366E-03 2.441763E-02 -9.639911E-04
# Covariance matrix:
1.6844E-13 4.6679E-14 -4.8104E-15 1.0363E-14 1.4603E-13 1.8979E-12
4.6679E-14 3.6432E-13 -1.6238E-14 4.3621E-14 3.1517E-13 8.0213E-12
-4.8104E-15 -1.6238E-14 9.5256E-14 -5.9893E-14 -1.5945E-14 -4.3829E-13
1.0363E-14 4.3621E-14 -5.9893E-14 6.3546E-14 4.0241E-14 1.2315E-12
1.4603E-13 3.1517E-13 -1.5945E-14 4.0241E-14 3.6278E-13 7.3920E-12
1.8979E-12 8.0213E-12 -4.3829E-13 1.2315E-12 7.3920E-12 2.2662E-10
# lat0 lon0 xBary yBary zBary JD0
0.856350 9.991647 1.005950 -0.002069 0.144854 2457197.094148
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 334.50311 +/- 0.181
Argument of Peri: 42.68109 +/- 0.247
Long of Asc Node: 358.90753 +/- 0.001
Inclination: 5.10122 +/- 0.001
Eccentricity: 0.13022992 +/- 0.0004
Semi-Major Axis: 46.05897875 +/- 0.0054
Time of Perihelion: 2465276.8881 +/- 57.4
Perihelion: 40.06072141 +/- 0.0168
Aphelion: 52.05723610 +/- 0.0173
Period (y) 312.5933 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 40.35670387 +/- 0.0010
Ecliptic Y 6.08960060 +/- 0.0002
Ecliptic Z 0.61220095 +/- 0.0000
Ecliptic XDOT -0.00060430 +/- 0.0000
Ecliptic YDOT 0.00276565 +/- 0.0000
Ecliptic ZDOT 0.00024581 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.81815249 +/- 0.0010
Geocenter to KBO 40.95401927 +/- 0.0010
# Hcoef: 8.62
The following table shows the complete astrometric record for 15RU279. 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 (15RU279) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.59337 00 35 22.655 +04 44 41.90 24.6r 15RU279 568 C~2nvn 2015 07 14.54595 00 35 36.762 +04 47 09.62 24.5r 15RU279 568 C~2nvn 2015 07 19.51084 00 35 34.425 +04 47 08.67 24.6r 15RU279 568 C~2nvn 2015 08 11.49932 00 34 56.763 +04 44 08.98 24.3r 15RU279 568 C~2nvn 2015 08 11.55875 00 34 56.599 +04 44 08.21 24.7r 15RU279 568 C~2nvn 2015 09 08.40498 00 33 21.498 +04 35 03.17 24.7r 15RU279 568 C~2nvn 2015 09 08.50910 00 33 21.058 +04 35 00.76 24.3r 15RU279 568 C~2nvn 2015 09 08.55273 00 33 20.859 +04 34 59.76 24.8r 15RU279 568 C~2nvn 2015 09 09.52831 00 33 16.812 +04 34 35.63 25.1w 15RU279 568 C~2nvo 2015 09 10.46916 00 33 12.874 +04 34 12.24 25.0w 15RU279 568 C~2nvo 2015 09 16.45837 00 32 47.071 +04 31 38.46 25.5w 15RU279 568 C~2nvo 2015 10 03.38583 00 31 30.225 +04 23 52.62 24.9w 15RU279 568 C~2nvo 2015 10 07.35453 00 31 11.975 +04 22 00.68 24.4r 15RU279 568 C~2nvo 2015 10 07.40769 00 31 11.732 +04 21 59.01 25.0r 15RU279 568 C~2nvo 2015 11 07.24974 00 29 02.797 +04 08 37.43 25.0w 15RU279 568 C~2nvo 2015 11 07.30253 00 29 02.612 +04 08 36.27 25.4w 15RU279 568 C~2nvo 2015 11 10.38589 00 28 52.029 +04 07 29.43 24.7w 15RU279 568 C~2nvo 2016 01 01.25515 00 27 46.609 +04 00 29.12 25.0w 15RU279 568 C~2nvo 2016 09 05.58308 00 38 46.620 +05 18 03.56 25.1w 15RU279 568 C~2nvo 2016 09 06.53219 00 38 42.788 +05 17 41.35 25.0w 15RU279 568 C~2nvo 2016 09 06.57428 00 38 42.617 +05 17 40.31 25.3w 15RU279 568 C~2nvo 2016 11 03.39726 00 34 29.385 +04 51 59.83 25.0w 15RU279 568 C~2nvo 2016 11 03.42043 00 34 29.292 +04 51 59.34 25.1w 15RU279 568 C~2nvo 2016 11 03.46220 00 34 29.123 +04 51 58.06 25.3w 15RU279 568 C~2nvo 2016 11 03.49709 00 34 28.993 +04 51 57.09 24.7w 15RU279 568 C~2nvo 2016 11 04.26545 00 34 26.129 +04 51 39.21 25.1w 15RU279 568 C~2nvo 2016 11 04.32471 00 34 25.895 +04 51 37.80 25.4w 15RU279 568 C~2nvo 2016 12 29.23783 00 32 53.145 +04 41 37.92 25.0w 15RU279 568 C~2nvo 2017 01 03.20730 00 32 57.984 +04 42 06.96 24.7w 15RU279 568 C~2nvo 2017 01 03.25288 00 32 58.051 +04 42 07.33 25.3w 15RU279 568 C~2nvo 2017 01 27.23800 00 33 53.191 +04 47 52.59 24.7w 15RU279 568 C~2nvo 2017 01 28.23385 00 33 56.567 +04 48 13.69 24.8w 15RU279 568 C~2nvo 2017 01 30.22844 00 34 03.544 +04 48 57.86 15RU279 568 C~2nvo 2017 09 16.50467 00 43 20.363 +05 55 51.63 24.6w 15RU279 568 C~2nvo 2017 09 17.40380 00 43 16.438 +05 55 28.45 24.8w 15RU279 568 C~2nvo 2017 09 22.45810 00 42 53.919 +05 53 15.31 25.1w 15RU279 568 C~2nvo 2017 11 22.36083 00 38 44.506 +05 27 38.38 24.6w 15RU279 568 C~2nvo 2017 12 23.28786 00 38 01.740 +05 22 52.64 24.8w 15RU279 568 C~2nvo 2017 12 23.30180 00 38 01.736 +05 22 52.75 24.6w 15RU279 568 C~2nvo
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 -0.02 0.00 -0.03
2 0.0574 251.96 -0.04 52.95 -0.21
3 0.0710 219.47 -0.03 65.80 0.08
4 0.1339 -368.83 0.06 121.91 0.05
5 0.1341 -371.38 -0.04 122.16 0.13
6 0.2103 -1893.00 0.07 180.57 -0.12
7 0.2106 -1900.00 0.12 180.94 0.01
8 0.2107 -1903.13 -0.06 181.19 0.16
9 0.2134 -1968.26 -0.01 182.84 0.02
10 0.2160 -2031.60 0.02 184.53 0.03
11 0.2323 -2446.86 0.15 195.14 0.20
12 0.2787 -3686.91 0.06 219.96 0.07
13 0.2896 -3981.99 -0.05 224.74 0.01
14 0.2897 -3985.99 -0.05 224.64 -0.19
15 0.3741 -6075.73 -0.03 249.53 0.04
16 0.3743 -6078.74 0.05 249.56 0.01
17 0.3827 -6250.75 -0.19 250.71 -0.16
18 0.5247 -7317.16 0.03 251.55 0.02
19 1.2046 3589.17 0.12 644.85 -0.11
20 1.2072 3527.79 -0.11 646.85 0.03
21 1.2073 3525.03 -0.10 646.89 -0.02
22 1.3657 -559.88 0.12 715.77 0.05
23 1.3657 -561.36 0.09 715.86 0.12
24 1.3658 -564.18 -0.13 715.68 -0.09
25 1.3659 -566.35 -0.14 715.55 -0.24
26 1.3680 -612.74 0.03 715.95 -0.05
27 1.3682 -616.51 -0.08 716.03 -0.02
28 1.5185 -2127.21 -0.03 710.39 0.04
29 1.5321 -2049.27 -0.03 708.58 0.12
30 1.5323 -2048.20 0.20 708.53 0.06
31 1.5979 -1154.52 -0.08 701.35 0.17
32 1.6007 -1099.83 0.02 700.88 -0.11
33 1.6061 -986.57 0.06 700.44 -0.21
34 2.2338 8241.19 0.04 1134.97 0.03
35 2.2363 8178.13 0.00 1136.47 -0.02
36 2.2501 7816.27 -0.03 1144.96 -0.05
37 2.4169 3785.48 0.03 1186.17 0.18
38 2.5016 3085.75 -0.01 1173.62 -0.07
39 2.5016 3085.74 -0.01 1173.74 0.05
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.
15RU279 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 46.575 46.586 46.565 ecceobj 0.138 0.139 0.138 incobj 5.077 5.077 5.077 qmin 39.316 39.294 39.341 qmax 53.581 53.591 53.540 amean 46.263 46.273 46.252 amin 45.875 45.886 45.864 amax 46.708 46.722 46.691 emean 0.134 0.135 0.134 emin 0.121 0.121 0.121 emax 0.147 0.148 0.147 imean 5.405 5.406 5.405 imin 4.849 4.850 4.853 imax 5.952 5.954 5.951 excite_mean 0.164 0.165 0.164 fracstop 1.000 1.000 1.000 cjmean 3.096 3.096 3.096 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 175.8 175.8 176.0 kozaiamp 179.9 180.0 179.9