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: 15RX279
# Created Sun Dec 22 02:10:29 2024
# Orbit generated from Bernstein formalism
# Fitting 28 observations of 28
# Arc: 1.53y
# First observation: 2015/06/23
# Last observation: 2017/01/03
Preliminary a, adot, b, bdot, g, gdot:
-0.000086 0.023570 0.000015 0.006706 0.024488 0.000000
# Chi-squared of fit: 7.39 DOF: 50 RMS: 0.09
# Min/Max residuals: -0.20 0.19
# Exact a, adot, b, bdot, g, gdot:
1.544354E-05 2.304292E-02 4.385643E-06 6.588647E-03 2.405409E-02 2.426059E-04
# Covariance matrix:
2.7156E-13 9.2123E-14 -3.0809E-14 1.4070E-13 3.2571E-13 1.2967E-11
9.2123E-14 4.4958E-13 -4.7683E-14 2.2064E-13 4.7733E-13 2.0321E-11
-3.0809E-14 -4.7683E-14 1.4105E-13 -1.6356E-13 -8.1413E-14 -4.8181E-12
1.4070E-13 2.2064E-13 -1.6356E-13 4.1267E-13 3.8072E-13 2.3718E-11
3.2571E-13 4.7733E-13 -8.1413E-14 3.8072E-13 7.7790E-13 3.5045E-11
1.2967E-11 2.0321E-11 -4.8181E-12 2.3718E-11 3.5045E-11 2.1778E-09
# lat0 lon0 xBary yBary zBary JD0
1.133344 10.809893 1.003779 -0.003053 0.159190 2457197.094148
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 339.83055 +/- 2.472
Argument of Peri: 25.93018 +/- 2.696
Long of Asc Node: 5.46669 +/- 0.000
Inclination: 16.06019 +/- 0.001
Eccentricity: 0.04026765 +/- 0.0007
Semi-Major Axis: 43.04088709 +/- 0.0034
Time of Perihelion: 2462968.9570 +/- 708.2
Perihelion: 41.30773162 +/- 0.0308
Aphelion: 44.77404256 +/- 0.0308
Period (y) 282.3775 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 40.85559973 +/- 0.0015
Ecliptic Y 6.78017281 +/- 0.0003
Ecliptic Z 0.82252185 +/- 0.0000
Ecliptic XDOT -0.00048182 +/- 0.0000
Ecliptic YDOT 0.00257238 +/- 0.0000
Ecliptic ZDOT 0.00075039 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.42254597 +/- 0.0015
Geocenter to KBO 41.57297484 +/- 0.0015
# Hcoef: 8.63
The following table shows the complete astrometric record for 15RX279. 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 (15RX279) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.59337 00 37 57.715 +05 19 15.70 24.8r 15RX279 568 C~2nvo 2015 07 14.54596 00 38 10.205 +05 22 38.84 24.3r 15RX279 568 C~2nvo 2015 07 19.51085 00 38 07.571 +05 22 51.29 25.0r 15RX279 568 C~2nvo 2015 08 11.49932 00 37 28.654 +05 20 57.02 24.6r 15RX279 568 C~2nvo 2015 09 08.40498 00 35 52.085 +05 13 10.76 24.4r 15RX279 568 C~2nvo 2015 09 08.50910 00 35 51.637 +05 13 08.59 24.7r 15RX279 568 C~2nvo 2015 09 08.55273 00 35 51.438 +05 13 07.51 24.7r 15RX279 568 C~2nvo 2015 09 09.52831 00 35 47.355 +05 12 46.23 24.7w 15RX279 568 C~2nvo 2015 09 10.46916 00 35 43.355 +05 12 25.40 25.1w 15RX279 568 C~2nvo 2015 09 16.45837 00 35 17.249 +05 10 07.46 25.1w 15RX279 568 C~2nvo 2015 10 03.38583 00 33 59.352 +05 03 04.81 25.3w 15RX279 568 C~2nvo 2015 10 07.40769 00 33 40.580 +05 01 21.20 24.5r 15RX279 568 C~2nvo 2015 11 07.24974 00 31 28.655 +04 49 01.96 25.0w 15RX279 568 C~2nvo 2015 11 07.30254 00 31 28.458 +04 49 00.87 25.2w 15RX279 568 C~2nvo 2015 11 10.38589 00 31 17.505 +04 47 59.64 24.8w 15RX279 568 C~2nvo 2016 01 01.25515 00 30 03.463 +04 41 57.73 25.1w 15RX279 568 C~2nvo 2016 09 06.45678 00 40 20.313 +06 06 48.76 25.4w 15RX279 568 C~2nvo 2016 09 06.49805 00 40 20.144 +06 06 47.86 25.2w 15RX279 568 C~2nvo 2016 09 26.43536 00 38 51.960 +05 59 05.80 25.0w 15RX279 568 C~2nvo 2016 10 26.40787 00 36 35.012 +05 46 26.33 24.9r 15RX279 568 C~2nvo 2016 10 26.47363 00 36 34.718 +05 46 24.77 24.4r 15RX279 568 C~2nvo 2016 11 03.42622 00 36 02.380 +05 43 21.04 25.3w 15RX279 568 C~2nvo 2016 11 03.49128 00 36 02.104 +05 43 19.65 25.1w 15RX279 568 C~2nvo 2016 11 04.27124 00 35 59.121 +05 43 02.56 25.0w 15RX279 568 C~2nvo 2016 11 04.33051 00 35 58.902 +05 43 01.24 25.0w 15RX279 568 C~2nvo 2016 12 29.24332 00 34 18.518 +05 33 56.20 25.2w 15RX279 568 C~2nvo 2016 12 29.26796 00 34 18.546 +05 33 56.36 24.9w 15RX279 568 C~2nvo 2017 01 03.23891 00 34 22.499 +05 34 27.70 25.1w 15RX279 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 -0.06 0.00 -0.01
2 0.0574 251.28 0.02 113.66 0.09
3 0.0710 219.98 0.16 140.54 -0.03
4 0.1339 -359.43 -0.11 263.55 0.01
5 0.2103 -1869.06 0.04 401.48 -0.01
6 0.2106 -1876.07 0.03 402.12 0.09
7 0.2107 -1879.23 -0.20 402.29 0.04
8 0.2134 -1943.68 0.09 406.71 -0.02
9 0.2160 -2006.81 -0.08 411.05 0.06
10 0.2323 -2419.67 0.07 437.62 -0.16
11 0.2787 -3656.17 -0.08 507.22 -0.18
12 0.2897 -3954.90 0.16 522.49 -0.10
13 0.3741 -6059.50 -0.08 620.72 -0.01
14 0.3743 -6062.64 -0.09 620.88 -0.02
15 0.3827 -6237.38 -0.01 629.26 0.19
16 0.5247 -7398.44 0.15 734.06 0.05
17 1.2070 3076.57 0.01 1790.78 0.05
18 1.2071 3073.90 0.04 1790.94 -0.02
19 1.2617 1682.39 -0.09 1881.07 0.07
20 1.3438 -495.27 0.17 1984.57 -0.01
21 1.3440 -499.91 0.04 1984.86 0.07
22 1.3657 -1015.95 0.06 2005.62 -0.09
23 1.3659 -1020.28 -0.19 2005.96 0.07
24 1.3680 -1067.94 -0.07 2007.76 0.04
25 1.3682 -1071.47 0.10 2007.83 -0.06
26 1.5185 -2663.74 -0.16 2096.47 0.01
27 1.5186 -2663.29 0.08 2096.45 -0.05
28 1.5322 -2596.69 0.01 2102.02 -0.06
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.
15RX279 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 43.459 43.470 43.450 ecceobj 0.049 0.049 0.049 incobj 15.982 15.983 15.981 qmin 40.668 40.700 40.655 qmax 45.970 45.961 45.972 amean 43.227 43.238 43.218 amin 42.902 42.896 42.893 amax 43.571 43.574 43.560 emean 0.044 0.044 0.045 emin 0.033 0.033 0.033 emax 0.056 0.055 0.056 imean 16.055 16.056 16.054 imin 15.626 15.620 15.617 imax 16.512 16.506 16.504 excite_mean 0.280 0.280 0.280 fracstop 1.000 1.000 1.000 cjmean 2.997 2.997 2.997 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 172.7 172.2 172.8 kozaiamp 180.0 180.0 179.9