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: 15RT279
# Created Wed May 8 01:17:18 2024
# Orbit generated from Bernstein formalism
# Fitting 32 observations of 32
# Arc: 2.50y
# First observation: 2015/06/23
# Last observation: 2017/12/23
Preliminary a, adot, b, bdot, g, gdot:
-0.000076 0.023230 0.000003 0.000886 0.023755 0.000000
# Chi-squared of fit: 13.47 DOF: 58 RMS: 0.11
# Min/Max residuals: -0.35 0.31
# Exact a, adot, b, bdot, g, gdot:
1.544993E-05 2.277618E-02 6.707338E-07 8.792001E-04 2.338388E-02 1.055249E-03
# Covariance matrix:
1.6785E-13 4.8720E-14 -1.4858E-15 5.4969E-15 1.5023E-13 2.7388E-12
4.8720E-14 4.0817E-13 -7.8750E-15 2.9624E-14 3.4258E-13 1.4677E-11
-1.4858E-15 -7.8750E-15 9.1697E-14 -6.1591E-14 -7.1531E-15 -4.1079E-13
5.4969E-15 2.9624E-14 -6.1591E-14 8.1594E-14 2.6824E-14 1.5502E-12
1.5023E-13 3.4258E-13 -7.1531E-15 2.6824E-14 3.8921E-13 1.3304E-11
2.7388E-12 1.4677E-11 -4.1079E-13 1.5502E-12 1.3304E-11 7.6724E-10
# lat0 lon0 xBary yBary zBary JD0
0.002144 10.437578 1.004802 0.000091 0.152625 2457197.098238
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 41.21424 +/- 1.430
Argument of Peri: 316.34436 +/- 1.565
Long of Asc Node: 9.02965 +/- 0.000
Inclination: 2.21506 +/- 0.001
Eccentricity: 0.03182805 +/- 0.0009
Semi-Major Axis: 43.64501342 +/- 0.0042
Time of Perihelion: 2445133.3364 +/- 418.3
Perihelion: 42.25587788 +/- 0.0391
Aphelion: 45.03414896 +/- 0.0391
Period (y) 288.3435 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 42.08527399 +/- 0.0011
Ecliptic Y 6.73206694 +/- 0.0002
Ecliptic Z 0.00168408 +/- 0.0000
Ecliptic XDOT -0.00036407 +/- 0.0000
Ecliptic YDOT 0.00263872 +/- 0.0000
Ecliptic ZDOT 0.00010301 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.62031223 +/- 0.0011
Geocenter to KBO 42.76449925 +/- 0.0011
# Hcoef: 8.17
The following table shows the complete astrometric record for 15RT279. 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 (15RT279) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.59746 00 38 22.116 +04 08 04.05 24.7r 15RT279 568 C~2nvn 2015 07 14.54187 00 38 36.423 +04 09 46.96 24.6r 15RT279 568 C~2nvn 2015 07 19.50673 00 38 34.400 +04 09 36.64 24.2r 15RT279 568 C~2nvn 2015 08 11.49525 00 37 59.108 +04 06 04.53 24.3r 15RT279 568 C~2nvn 2015 08 11.53687 00 37 58.992 +04 06 03.85 24.2r 15RT279 568 C~2nvn 2015 09 08.40090 00 36 28.421 +03 56 40.83 24.5r 15RT279 568 C~2nvn 2015 09 08.50503 00 36 28.018 +03 56 38.47 24.1r 15RT279 568 C~2nvn 2015 09 08.54864 00 36 27.840 +03 56 37.35 25.0r 15RT279 568 C~2nvn 2015 09 09.52420 00 36 23.959 +03 56 13.20 24.8w 15RT279 568 C~2nvn 2015 09 10.46510 00 36 20.184 +03 55 49.59 24.8w 15RT279 568 C~2nvn 2015 09 16.45310 00 35 55.483 +03 53 15.17 24.8w 15RT279 568 C~2nvn 2015 10 03.37986 00 34 41.675 +03 45 32.33 24.5w 15RT279 568 C~2nvn 2015 10 07.34557 00 34 24.132 +03 43 42.11 24.6r 15RT279 568 C~2nvn 2015 10 07.36748 00 34 24.013 +03 43 41.47 24.4r 15RT279 568 C~2nvn 2015 10 07.40358 00 34 23.846 +03 43 40.53 24.3r 15RT279 568 C~2nvn 2015 11 07.24449 00 32 18.809 +03 30 35.92 24.6w 15RT279 568 C~2nvn 2015 11 07.29726 00 32 18.613 +03 30 34.69 24.5w 15RT279 568 C~2nvn 2015 11 10.38064 00 32 08.252 +03 29 29.77 24.4w 15RT279 568 C~2nvn 2015 12 07.32092 00 31 05.318 +03 23 00.10 24.7w 15RT279 568 C~2nvn 2016 01 01.24995 00 31 00.479 +03 22 41.47 24.7w 15RT279 568 C~2nvn 2016 09 05.53675 00 41 27.154 +04 31 46.07 24.9w 15RT279 568 C~2nvn 2016 09 07.47613 00 41 19.674 +04 30 59.75 24.7w 15RT279 568 C~2nvn 2016 09 07.52244 00 41 19.487 +04 30 58.65 24.9w 15RT279 568 C~2nvn 2016 09 26.57954 00 39 59.560 +04 22 41.07 24.5w 15RT279 568 C~2nvn 2016 12 29.26158 00 35 42.824 +03 56 07.51 24.6w 15RT279 568 C~2nvn 2017 01 03.23211 00 35 46.959 +03 56 36.10 24.9w 15RT279 568 C~2nvn 2017 01 27.23800 00 36 37.312 +04 02 07.78 24.5w 15RT279 568 C~2nvn 2017 01 28.23385 00 36 40.446 +04 02 28.32 25.4w 15RT279 568 C~2nvn 2017 01 30.24057 00 36 46.948 +04 03 10.89 24.6w 15RT279 568 C~2nvn 2017 11 22.36455 00 41 09.328 +04 33 54.26 24.5w 15RT279 568 C~2nvn 2017 11 22.37200 00 41 09.293 +04 33 54.08 24.5w 15RT279 568 C~2nvn 2017 12 23.29716 00 40 25.958 +04 29 29.44 24.7w 15RT279 568 C~2nvn
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 -0.01 0.00 -0.02
2 0.0573 237.25 -0.13 10.72 0.14
3 0.0709 205.37 0.06 13.10 -0.01
4 0.1339 -363.52 -0.15 25.09 0.12
5 0.1340 -365.39 -0.35 25.15 0.13
6 0.2103 -1832.88 -0.09 39.30 -0.18
7 0.2106 -1839.36 0.23 39.49 -0.09
8 0.2107 -1842.25 0.18 39.51 -0.12
9 0.2134 -1905.15 0.14 40.11 -0.02
10 0.2159 -1966.38 0.05 40.59 -0.00
11 0.2323 -2367.02 0.09 43.80 0.08
12 0.2787 -3564.94 -0.00 52.42 -0.01
13 0.2895 -3849.80 0.31 54.35 -0.10
14 0.2896 -3851.69 0.02 54.46 -0.01
15 0.2897 -3854.36 -0.02 54.58 0.07
16 0.3741 -5885.06 0.10 70.00 0.04
17 0.3743 -5888.24 -0.08 70.03 0.01
18 0.3827 -6056.54 -0.24 71.45 -0.13
19 0.4565 -7077.19 -0.08 84.59 0.11
20 0.5247 -7151.22 -0.08 96.04 0.06
21 1.2045 3103.74 -0.01 224.14 -0.05
22 1.2098 2982.65 0.00 225.28 0.04
23 1.2099 2979.65 -0.03 225.36 0.08
24 1.2621 1684.79 0.09 235.49 -0.06
25 1.5186 -2473.52 0.10 276.73 -0.15
26 1.5322 -2405.38 0.16 278.71 -0.04
27 1.5979 -1582.11 -0.19 287.73 -0.13
28 1.6006 -1530.92 0.08 288.21 -0.03
29 1.6061 -1424.72 -0.11 289.16 0.15
30 2.4169 2908.57 0.11 446.43 0.04
31 2.4169 2908.02 -0.12 446.47 0.08
32 2.5016 2208.03 -0.03 456.62 0.00
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.
15RT279 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.086 44.104 44.069 ecceobj 0.040 0.042 0.038 incobj 2.205 2.205 2.204 qmin 41.485 41.455 41.569 qmax 46.335 46.453 46.290 amean 43.848 43.866 43.831 amin 43.511 43.522 43.491 amax 44.190 44.229 44.190 emean 0.033 0.035 0.031 emin 0.016 0.019 0.015 emax 0.049 0.051 0.048 imean 2.545 2.548 2.542 imin 1.804 1.808 1.799 imax 3.167 3.169 3.168 excite_mean 0.056 0.057 0.055 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 184.6 184.7 184.7 kozaiamp 180.0 180.0 180.0