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: 15RE278
# Created Sat Apr 27 01:17:28 2024
# Orbit generated from Bernstein formalism
# Fitting 38 observations of 38
# Arc: 2.50y
# First observation: 2015/06/23
# Last observation: 2017/12/23
Preliminary a, adot, b, bdot, g, gdot:
-0.000031 0.025523 -0.000004 -0.003009 0.025091 0.000000
# Chi-squared of fit: 15.50 DOF: 70 RMS: 0.11
# Min/Max residuals: -0.39 0.27
# Exact a, adot, b, bdot, g, gdot:
1.653021E-05 2.495743E-02 -1.898064E-06 -2.961397E-03 2.460048E-02 1.109404E-03
# Covariance matrix:
1.5963E-13 2.6099E-14 5.2926E-16 -9.7462E-15 1.2593E-13 1.5418E-12
2.6099E-14 3.3007E-13 1.0458E-14 -4.9641E-14 2.6486E-13 7.6558E-12
5.2926E-16 1.0458E-14 9.1601E-14 -5.8470E-14 7.4451E-15 3.4239E-13
-9.7462E-15 -4.9641E-14 -5.8470E-14 6.8425E-14 -4.2897E-14 -1.4956E-12
1.2593E-13 2.6486E-13 7.4451E-15 -4.2897E-14 3.0613E-13 6.6562E-12
1.5418E-12 7.6558E-12 3.4239E-13 -1.4956E-12 6.6562E-12 2.2997E-10
# lat0 lon0 xBary yBary zBary JD0
1.404874 10.511080 1.004596 -0.003679 0.153939 2457197.094148
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 13.85936 +/- 0.426
Argument of Peri: 152.13817 +/- 0.496
Long of Asc Node: 200.85550 +/- 0.001
Inclination: 6.88301 +/- 0.001
Eccentricity: 0.07092734 +/- 0.0002
Semi-Major Axis: 43.48489072 +/- 0.0026
Time of Perihelion: 2453158.2583 +/- 124.1
Perihelion: 40.40062320 +/- 0.0090
Aphelion: 46.56915824 +/- 0.0091
Period (y) 286.7582 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 39.98381816 +/- 0.0009
Ecliptic Y 6.39798375 +/- 0.0002
Ecliptic Z 0.99659392 +/- 0.0000
Ecliptic XDOT -0.00037986 +/- 0.0000
Ecliptic YDOT 0.00274872 +/- 0.0000
Ecliptic ZDOT -0.00032639 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.50472948 +/- 0.0009
Geocenter to KBO 40.64961294 +/- 0.0009
# Hcoef: 8.88
The following table shows the complete astrometric record for 15RE278. 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 (15RE278) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.59337 00 36 25.782 +05 27 12.43 24.7r 15RE278 568 C~2lVP 2015 07 14.54596 00 36 41.834 +05 29 04.55 25.5r 15RE278 568 C~2lVP 2015 07 19.51085 00 36 39.902 +05 28 54.16 24.5r 15RE278 568 C~2lVP 2015 08 11.49932 00 36 03.862 +05 25 09.35 25.2r 15RE278 568 C~2lVP 2015 08 11.55875 00 36 03.710 +05 25 08.37 25.6r 15RE278 568 C~2lVP 2015 09 08.40498 00 34 29.976 +05 14 57.73 24.9r 15RE278 568 C~2lVP 2015 09 08.50910 00 34 29.518 +05 14 55.02 24.8r 15RE278 568 C~2lVP 2015 09 08.55273 00 34 29.354 +05 14 53.76 24.9r 15RE278 568 C~2lVP 2015 09 09.52831 00 34 25.329 +05 14 27.25 25.1w 15RE278 568 C~2lVP 2015 09 10.46917 00 34 21.425 +05 14 01.40 25.1w 15RE278 568 C~2lVP 2015 09 16.45837 00 33 55.814 +05 11 11.11 25.0w 15RE278 568 C~2lVP 2015 10 03.38583 00 32 39.451 +05 02 35.95 24.0w 15RE278 568 C~2lVP 2015 10 07.35453 00 32 21.276 +05 00 31.97 24.3r 15RE278 568 C~2lVP 2015 10 07.40769 00 32 21.035 +05 00 30.23 25.0r 15RE278 568 C~2lVP 2015 11 07.24974 00 30 12.644 +04 45 24.39 25.4w 15RE278 568 C~2lVP 2015 11 07.30254 00 30 12.452 +04 45 22.91 25.1w 15RE278 568 C~2lVP 2015 11 10.38589 00 30 01.915 +04 44 05.58 25.0w 15RE278 568 C~2lVP 2015 12 07.32615 00 28 59.292 +04 35 44.29 25.4w 15RE278 568 C~2lVP 2016 01 01.25515 00 28 57.840 +04 33 54.33 25.5w 15RE278 568 C~2lVP 2016 09 05.50258 00 40 19.729 +05 40 47.66 25.1w 15RE278 568 C~2lVP 2016 09 06.45678 00 40 15.954 +05 40 22.63 25.2w 15RE278 568 C~2lVP 2016 09 06.49805 00 40 15.792 +05 40 21.62 24.9w 15RE278 568 C~2lVP 2016 09 26.43536 00 38 49.645 +05 30 48.30 25.4w 15RE278 568 C~2lVP 2016 09 27.48878 00 38 44.853 +05 30 15.91 25.1w 15RE278 568 C~2lVP 2016 11 03.48549 00 36 03.732 +05 11 42.97 25.0w 15RE278 568 C~2lVP 2016 11 03.49709 00 36 03.691 +05 11 42.77 25.2w 15RE278 568 C~2lVP 2016 11 04.26545 00 36 00.827 +05 11 21.97 25.2w 15RE278 568 C~2lVP 2016 11 04.32471 00 36 00.608 +05 11 20.51 25.0w 15RE278 568 C~2lVP 2016 12 29.24332 00 34 28.762 +04 58 20.75 25.5w 15RE278 568 C~2lVP 2016 12 29.26796 00 34 28.776 +04 58 20.46 25.5w 15RE278 568 C~2lVP 2017 01 03.21350 00 34 33.745 +04 58 33.29 25.9w 15RE278 568 C~2lVP 2017 01 03.23891 00 34 33.776 +04 58 33.46 25.3w 15RE278 568 C~2lVP 2017 09 16.50467 00 45 16.623 +06 00 33.61 25.2w 15RE278 568 C~2lVP 2017 09 17.40380 00 45 12.752 +06 00 07.83 24.8w 15RE278 568 C~2lVP 2017 09 22.45810 00 44 50.499 +05 57 40.11 25.1w 15RE278 568 C~2lVP 2017 11 22.36083 00 40 42.824 +05 29 04.43 24.9w 15RE278 568 C~2lVP 2017 12 23.28786 00 40 00.297 +05 22 49.95 25.7w 15RE278 568 C~2lVP 2017 12 23.30180 00 40 00.317 +05 22 49.79 25.1w 15RE278 568 C~2lVP
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 -0.10 0.00 -0.00
2 0.0574 264.46 0.23 8.95 0.03
3 0.0710 233.85 -0.01 10.73 -0.09
4 0.1339 -349.36 0.04 15.44 -0.02
5 0.1341 -351.83 0.03 15.43 -0.06
6 0.2103 -1879.15 0.13 4.61 -0.16
7 0.2106 -1886.50 -0.13 4.82 0.07
8 0.2107 -1889.25 0.09 4.62 -0.11
9 0.2134 -1954.96 0.01 3.92 0.01
10 0.2160 -2018.75 0.04 3.11 0.04
11 0.2323 -2437.52 -0.16 -2.79 0.02
12 0.2787 -3689.37 0.07 -26.72 -0.11
13 0.2896 -3987.94 -0.10 -33.57 0.17
14 0.2897 -3991.93 -0.04 -33.75 0.07
15 0.3741 -6113.84 0.03 -108.61 0.02
16 0.3743 -6117.07 -0.06 -108.83 -0.08
17 0.3827 -6292.48 -0.12 -117.64 0.27
18 0.4565 -7351.78 0.09 -208.04 0.12
19 0.5247 -7415.29 0.12 -300.51 -0.08
20 1.2044 3532.96 -0.08 -619.69 0.12
21 1.2070 3471.29 -0.04 -620.67 -0.01
22 1.2071 3468.67 0.08 -620.65 0.02
23 1.2617 2060.55 -0.06 -644.42 0.10
24 1.2646 1982.02 0.08 -646.17 -0.08
25 1.3659 -668.07 -0.09 -725.29 0.03
26 1.3659 -668.71 -0.00 -725.24 0.12
27 1.3680 -716.23 -0.19 -727.55 -0.01
28 1.3682 -719.81 -0.05 -727.60 0.06
29 1.5185 -2288.28 0.01 -904.81 0.14
30 1.5186 -2288.20 -0.16 -905.16 -0.13
31 1.5322 -2214.88 0.08 -922.59 -0.39
32 1.5322 -2214.39 0.13 -922.62 -0.34
33 2.2338 8078.55 0.01 -1257.79 0.07
34 2.2363 8015.22 0.01 -1259.04 0.01
35 2.2501 7651.40 -0.09 -1265.78 0.07
36 2.4169 3575.12 0.04 -1401.89 0.11
37 2.5016 2843.98 -0.03 -1497.93 0.10
38 2.5016 2844.20 0.21 -1498.20 -0.13
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.
15RE278 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.936 43.947 43.926 ecceobj 0.081 0.081 0.080 incobj 6.852 6.853 6.852 qmin 39.547 38.230 39.524 qmax 48.221 49.533 48.280 amean 43.725 43.727 43.726 amin 43.346 43.345 43.342 amax 44.138 44.150 44.130 emean 0.073 0.091 0.078 emin 0.049 0.057 0.058 emax 0.093 0.123 0.095 imean 7.803 7.263 7.729 imin 7.034 6.453 7.037 imax 8.619 8.618 8.467 excite_mean 0.155 0.157 0.156 fracstop 1.000 1.000 1.000 cjmean 3.070 3.069 3.069 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 185.6 161.7 189.1 kozaiamp 180.0 180.0 180.0