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: 15RW279
# Created Sun Nov 24 02:10:25 2024
# Orbit generated from Bernstein formalism
# Fitting 31 observations of 33
# Arc: 2.50y
# First observation: 2015/06/23
# Last observation: 2017/12/23
Preliminary a, adot, b, bdot, g, gdot:
-0.000050 0.024291 0.000002 -0.000385 0.024356 0.000000
# Chi-squared of fit: 5.75 DOF: 56 RMS: 0.08
# Min/Max residuals: -0.19 0.16
# Exact a, adot, b, bdot, g, gdot:
1.559981E-05 2.384481E-02 -3.183527E-07 -3.796015E-04 2.394175E-02 1.977019E-03
# Covariance matrix:
1.8814E-13 4.5157E-14 -2.6129E-15 -8.5640E-16 1.6435E-13 2.2823E-12
4.5157E-14 4.9583E-13 -2.6194E-15 -8.8133E-15 4.1227E-13 1.7024E-11
-2.6129E-15 -2.6194E-15 1.0479E-13 -7.0054E-14 -4.4250E-15 -1.7424E-14
-8.5640E-16 -8.8133E-15 -7.0054E-14 8.3258E-14 -7.2605E-15 -4.4063E-13
1.6435E-13 4.1227E-13 -4.4250E-15 -7.2605E-15 4.5911E-13 1.4628E-11
2.2823E-12 1.7024E-11 -1.7424E-14 -4.4063E-13 1.4628E-11 8.2088E-10
# lat0 lon0 xBary yBary zBary JD0
1.207705 10.683723 1.004127 -0.003213 0.156976 2457197.094148
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 46.40188 +/- 0.421
Argument of Peri: 72.90959 +/- 0.547
Long of Asc Node: 243.29814 +/- 0.021
Inclination: 1.49816 +/- 0.000
Eccentricity: 0.07522241 +/- 0.0010
Semi-Major Axis: 43.74771328 +/- 0.0083
Time of Perihelion: 2443567.7585 +/- 123.4
Perihelion: 40.45690483 +/- 0.0457
Aphelion: 47.03852173 +/- 0.0460
Period (y) 289.3618 +/- 0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 41.06322918 +/- 0.0012
Ecliptic Y 6.72621041 +/- 0.0002
Ecliptic Z 0.88038188 +/- 0.0000
Ecliptic XDOT -0.00028496 +/- 0.0000
Ecliptic YDOT 0.00271533 +/- 0.0000
Ecliptic ZDOT -0.00003857 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.61977618 +/- 0.0011
Geocenter to KBO 41.76804065 +/- 0.0012
# Hcoef: 8.14
The following table shows the complete astrometric record for 15RW279. 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 (15RW279) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.59337 00 37 22.714 +05 20 23.68 24.5r 15RW279 568 C~2nvo 2015 07 14.54596 00 37 37.672 +05 22 34.84 23.2r 15RW279 568 C~2nvo 2015 07 19.51085 00 37 35.670 +05 22 29.80 24.2r 15RW279 568 C~2nvo 2015 08 11.49932 00 36 59.832 +05 19 16.18 24.4r 15RW279 568 C~2nvo 2015 08 11.55875 00 36 59.690 +05 19 15.29 24.4r 15RW279 568 C~2nvo 2015 09 08.40498 00 35 27.436 +05 09 53.97 24.6r 15RW279 568 C~2nvo 2015 09 08.50910 00 35 26.993 +05 09 51.38 24.5r 15RW279 568 C~2nvo 2015 09 08.55273 00 35 26.825 +05 09 50.32 24.4r 15RW279 568 C~2nvo 2015 09 09.52831 00 35 22.876 +05 09 25.59 24.5w 15RW279 568 C~2nvo 2015 09 10.46916 00 35 19.037 +05 09 01.58 24.6w 15RW279 568 C~2nvo 2015 09 16.45837 00 34 53.868 +05 06 23.11 24.7w 15RW279 568 C~2nvo 2015 10 03.38583 00 33 38.740 +04 58 23.57 24.3w 15RW279 568 C~2nvo 2015 10 07.35453 00 33 20.876 +04 56 27.74 24.4r 15RW279 568 C~2nvo 2015 10 07.40769 00 33 20.629 +04 56 26.17 24.1r 15RW279 568 C~2nvo 2015 11 07.24974 00 31 13.854 +04 42 25.25 24.6w 15RW279 568 C~2nvo 2015 11 07.30254 00 31 13.665 +04 42 23.98 24.6w 15RW279 568 C~2nvo 2015 11 10.38589 00 31 03.223 +04 41 12.66 24.3w 15RW279 568 C~2nvo 2016 01 01.25515 00 29 56.992 +04 32 24.22 24.7w 15RW279 568 C~2nvo 2016 09 05.50258 00 40 47.784 +05 42 25.48 24.6w 15RW279 568 C~2nvo 2016 09 06.45678 00 40 44.066 +05 42 02.73 23.8w 15RW279 568 C~2nvo 2016 09 06.49805 00 40 43.897 +05 42 01.53 24.6w 15RW279 568 C~2nvo 2016 09 26.43536 00 39 19.191 +05 33 09.66 24.5w 15RW279 568 C~2nvo 2016 11 03.42043 00 36 36.077 +05 15 25.39 24.4w 15RW279 568 C~2nvo 2016 11 03.48549 00 36 35.834 +05 15 23.66 24.7w 15RW279 568 C~2nvo 2016 11 03.49709 00 36 35.781 +05 15 23.51 24.5w 15RW279 568 C~2nvo 2016 11 04.26545 00 36 32.970 +05 15 04.31 24.6w 15RW279 568 C~2nvo 2016 11 04.32471 00 36 32.744 +05 15 02.97 24.8w 15RW279 568 C~2nvo 2016 12 29.26796 00 34 59.979 +05 03 27.02 24.5w 15RW279 568 C~2nvo 2017 01 03.23891 00 35 04.479 +05 03 45.17 24.1w 15RW279 568 C~2nvo 2017 01 30.22844 00 36 07.369 +05 09 31.92 25.7w 15RW279 568 C~2nvo 2017 11 22.36083 00 40 46.185 +05 40 01.78 24.5w 15RW279 568 C~2nvo 2017 12 23.28786 00 40 03.194 +05 34 27.79 25.0w 15RW279 568 C~2nvo 2017 12 23.30180 00 40 03.196 +05 34 27.77 24.5w 15RW279 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 0.03 0.00 0.01
2 0.0574 256.94 ( 0.00) 32.94 ( 0.46)
3 0.0710 227.47 0.12 40.04 -0.03
4 0.1339 -340.80 -0.14 72.11 0.08
5 0.1341 -343.10 -0.05 72.12 -0.00
6 0.2103 -1830.89 0.07 97.55 -0.00
7 0.2106 -1838.00 -0.13 97.77 0.11
8 0.2107 -1840.72 0.04 97.79 0.08
9 0.2134 -1904.69 0.02 98.25 0.02
10 0.2160 -1966.87 0.04 98.74 0.05
11 0.2323 -2374.96 -0.09 100.98 -0.19
12 0.2787 -3595.92 -0.05 102.14 0.05
13 0.2896 -3887.02 0.03 100.86 -0.12
14 0.2897 -3891.03 -0.03 100.87 -0.12
15 0.3741 -5965.18 0.01 75.45 0.00
16 0.3743 -5968.28 -0.02 75.40 -0.01
17 0.3827 -6140.00 0.11 71.49 0.12
18 0.5247 -7259.64 -0.00 -22.90 -0.13
19 1.2044 3335.15 -0.01 16.04 -0.07
20 1.2070 3275.16 0.13 16.82 0.16
21 1.2071 3272.37 -0.00 16.70 0.00
22 1.2617 1900.39 -0.01 22.43 0.06
23 1.3657 -757.75 -0.03 -0.76 0.03
24 1.3659 -761.77 -0.03 -0.93 -0.08
25 1.3659 -762.55 -0.10 -0.75 0.10
26 1.3680 -808.71 0.01 -1.91 -0.05
27 1.3682 -812.34 0.02 -1.82 0.09
28 1.5186 -2360.31 0.11 -96.84 -0.17
29 1.5322 -2291.34 -0.03 -106.61 0.00
30 1.6061 -1291.01 ( 0.75) -157.28 ( 0.33)
31 2.4169 3256.94 0.04 -106.88 0.01
32 2.5016 2535.51 -0.06 -163.02 0.00
33 2.5016 2535.53 -0.01 -163.05 -0.01
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.
15RW279 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.200 44.230 44.170 ecceobj 0.083 0.085 0.080 incobj 1.496 1.497 1.496 qmin 39.731 39.636 39.824 qmax 48.386 48.551 48.344 amean 43.955 43.986 43.926 amin 43.606 43.639 43.563 amax 44.326 44.367 44.318 emean 0.076 0.079 0.074 emin 0.059 0.062 0.057 emax 0.092 0.095 0.091 imean 3.377 3.385 3.370 imin 2.639 2.648 2.637 imax 4.100 4.111 4.091 excite_mean 0.097 0.099 0.094 fracstop 1.000 1.000 1.000 cjmean 3.090 3.090 3.090 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 178.5 178.2 178.8 kozaiamp 179.9 180.0 179.9