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: 15RL279
# Created Tue Apr 1 01:10:33 2025
# Orbit generated from Bernstein formalism
# Fitting 30 observations of 30
# Arc: 2.25y
# First observation: 2015/06/23
# Last observation: 2017/09/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000134 0.023336 0.000001 0.000047 0.023688 0.000000
# Chi-squared of fit: 8.81 DOF: 54 RMS: 0.10
# Min/Max residuals: -0.30 0.23
# Exact a, adot, b, bdot, g, gdot:
1.492429E-05 2.278409E-02 2.179586E-07 4.601485E-05 2.333584E-02 3.528954E-04
# Covariance matrix:
2.4026E-13 4.6735E-14 -1.4757E-15 9.5888E-16 2.0699E-13 3.2788E-12
4.6735E-14 3.7253E-13 -2.0104E-15 2.3757E-15 2.6916E-13 9.8674E-12
-1.4757E-15 -2.0104E-15 9.5620E-14 -7.3255E-14 -2.5849E-15 -6.8152E-14
9.5888E-16 2.3757E-15 -7.3255E-14 1.1106E-13 2.3232E-15 9.1474E-14
2.0699E-13 2.6916E-13 -2.5849E-15 2.3232E-15 3.5485E-13 8.9936E-12
3.2788E-12 9.8674E-12 -6.8152E-14 9.1474E-14 8.9936E-12 3.8973E-10
# lat0 lon0 xBary yBary zBary JD0
0.441366 6.119301 1.013409 -0.000499 0.076995 2457197.071038
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 342.57505 +/- 1.521
Argument of Peri: 92.29212 +/- 1.624
Long of Asc Node: 290.94909 +/- 0.101
Inclination: 0.46041 +/- 0.000
Eccentricity: 0.03023223 +/- 0.0003
Semi-Major Axis: 44.05116377 +/- 0.0030
Time of Perihelion: 2462359.4634 +/- 451.1
Perihelion: 42.71939890 +/- 0.0119
Aphelion: 45.38292864 +/- 0.0119
Period (y) 292.3777 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 42.63509812 +/- 0.0011
Ecliptic Y 3.55254384 +/- 0.0001
Ecliptic Z 0.33016898 +/- 0.0000
Ecliptic XDOT -0.00024629 +/- 0.0000
Ecliptic YDOT 0.00265606 +/- 0.0000
Ecliptic ZDOT 0.00000578 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.78412289 +/- 0.0011
Geocenter to KBO 42.85254004 +/- 0.0011
# Hcoef: 9.02
The following table shows the complete astrometric record for 15RL279. 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 (15RL279) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.57026 00 21 46.269 +02 50 07.87 25.4r 15RL279 568 C~2nvm 2015 07 19.56683 00 21 48.667 +02 50 41.67 26.1r 15RL279 568 C~2nvm 2015 08 11.46704 00 21 06.019 +02 46 20.58 25.5r 15RL279 568 C~2nvm 2015 08 11.51158 00 21 05.903 +02 46 19.87 25.0r 15RL279 568 C~2nvm 2015 09 08.37633 00 19 29.705 +02 36 09.55 25.0r 15RL279 568 C~2nvm 2015 09 08.48053 00 19 29.253 +02 36 06.84 24.9r 15RL279 568 C~2nvm 2015 09 08.52274 00 19 29.086 +02 36 05.66 24.9r 15RL279 568 C~2nvm 2015 09 09.49961 00 19 25.093 +02 35 40.25 25.4w 15RL279 568 C~2nvm 2015 09 10.44054 00 19 21.228 +02 35 15.38 25.5w 15RL279 568 C~2nvm 2015 09 16.42148 00 18 56.114 +02 32 33.83 25.9w 15RL279 568 C~2nvm 2015 10 03.33607 00 17 42.445 +02 24 38.55 24.5r 15RL279 568 C~2nvm 2015 10 03.34821 00 17 42.401 +02 24 38.12 25.6w 15RL279 568 C~2nvm 2015 10 03.40227 00 17 42.151 +02 24 36.61 26.6w 15RL279 568 C~2nvm 2015 10 07.28650 00 17 25.282 +02 22 47.16 25.4r 15RL279 568 C~2nvm 2015 10 07.31809 00 17 25.127 +02 22 46.25 25.0r 15RL279 568 C~2nvm 2015 11 05.24318 00 15 32.417 +02 10 28.62 25.9w 15RL279 568 C~2nvm 2015 11 07.21298 00 15 26.118 +02 09 46.59 24.9w 15RL279 568 C~2nvm 2015 11 07.26546 00 15 25.938 +02 09 45.54 25.6w 15RL279 568 C~2nvm 2015 11 10.34251 00 15 16.540 +02 08 43.20 26.3w 15RL279 568 C~2nvm 2015 12 07.28927 00 14 23.448 +02 02 43.66 26.0w 15RL279 568 C~2nvm 2016 01 01.21869 00 14 28.894 +02 03 02.26 26.4w 15RL279 568 C~2nvm 2016 09 05.55294 00 24 32.099 +03 08 53.12 25.3w 15RL279 568 C~2nvm 2016 09 07.49232 00 24 24.374 +03 08 03.74 25.6w 15RL279 568 C~2nvm 2016 09 26.57548 00 23 03.261 +02 59 23.73 25.4w 15RL279 568 C~2nvm 2016 12 24.25172 00 19 09.190 +02 33 34.06 25.1w 15RL279 568 C~2nvm 2017 01 02.23941 00 19 17.927 +02 34 24.37 25.5w 15RL279 568 C~2nvm 2017 01 27.25763 00 20 18.805 +02 40 42.21 25.7w 15RL279 568 C~2nvm 2017 01 28.24596 00 20 22.231 +02 41 03.92 25.0w 15RL279 568 C~2nvm 2017 09 15.45412 00 28 47.208 +03 36 27.86 25.4w 15RL279 568 C~2nvm 2017 09 22.51940 00 28 16.921 +03 33 14.19 24.9w 15RL279 568 C~2nvm
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 0.11 0.00 -0.04
2 0.0712 46.37 -0.14 16.81 -0.16
3 0.1339 -643.74 -0.11 30.13 -0.00
4 0.1340 -645.61 -0.01 30.17 -0.01
5 0.2103 -2210.93 0.17 41.01 -0.05
6 0.2106 -2218.22 -0.10 41.20 0.07
7 0.2107 -2220.99 -0.02 41.11 -0.05
8 0.2134 -2286.00 -0.04 41.51 0.11
9 0.2159 -2349.04 -0.07 41.63 0.03
10 0.2323 -2758.64 0.17 42.54 -0.30
11 0.2786 -3960.93 0.04 44.13 0.06
12 0.2787 -3961.70 0.14 44.00 -0.08
13 0.2788 -3965.74 0.02 44.10 -0.00
14 0.2894 -4241.34 0.15 43.94 0.06
15 0.2895 -4243.83 -0.08 44.03 0.14
16 0.3687 -6088.33 0.01 37.56 0.23
17 0.3741 -6191.76 0.11 36.47 -0.09
18 0.3743 -6194.66 -0.03 36.58 0.01
19 0.3827 -6348.84 -0.14 35.31 -0.06
20 0.4565 -7222.97 -0.20 21.44 0.00
21 0.5247 -7140.56 0.02 6.07 0.06
22 1.2046 2726.73 -0.07 50.43 0.08
23 1.2099 2600.91 0.02 50.83 -0.02
24 1.2622 1279.23 0.01 53.86 0.01
25 1.5049 -2554.84 0.09 20.13 0.07
26 1.5296 -2414.68 0.04 14.41 0.03
27 1.5980 -1427.34 -0.04 -0.27 -0.01
28 1.6008 -1371.60 -0.04 -0.68 0.10
29 2.2310 6892.09 0.03 62.07 -0.02
30 2.2504 6398.54 -0.02 62.96 -0.16
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.
15RL279 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.492 44.501 44.482 ecceobj 0.040 0.040 0.040 incobj 0.461 0.461 0.461 qmin 41.769 41.818 41.747 qmax 46.948 46.929 46.959 amean 44.265 44.275 44.256 amin 43.922 43.934 43.904 amax 44.618 44.637 44.615 emean 0.037 0.037 0.037 emin 0.021 0.021 0.022 emax 0.052 0.052 0.053 imean 2.211 2.212 2.210 imin 1.552 1.555 1.549 imax 2.745 2.745 2.747 excite_mean 0.054 0.054 0.054 fracstop 1.000 1.000 1.000 cjmean 3.101 3.101 3.101 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 188.9 189.3 188.8 kozaiamp 180.0 180.0 180.0