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: 15RT277
# Created Sun Dec 22 02:10:27 2024
# Orbit generated from Bernstein formalism
# Fitting 26 observations of 26
# Arc: 2.43y
# First observation: 2015/07/19
# Last observation: 2017/12/23
Preliminary a, adot, b, bdot, g, gdot:
-0.000186 0.023510 -0.000009 -0.002213 0.024684 0.000000
# Chi-squared of fit: 14.24 DOF: 46 RMS: 0.13
# Min/Max residuals: -0.35 0.30
# Exact a, adot, b, bdot, g, gdot:
1.546058E-05 2.336199E-02 -1.534983E-06 -2.240652E-03 2.469460E-02 4.693902E-03
# Covariance matrix:
2.9397E-13 1.1637E-13 3.8966E-15 -2.1550E-14 2.8934E-13 4.7431E-12
1.1637E-13 3.6158E-13 1.0600E-14 -5.2947E-14 3.6273E-13 1.1501E-11
3.8966E-15 1.0600E-14 1.1175E-13 -7.9772E-14 1.3110E-14 8.6831E-13
-2.1550E-14 -5.2947E-14 -7.9772E-14 1.2378E-13 -6.6443E-14 -4.1331E-12
2.8934E-13 3.6273E-13 1.3110E-14 -6.6443E-14 5.2040E-13 1.4461E-11
4.7431E-12 1.1501E-11 8.6831E-13 -4.1331E-12 1.4461E-11 8.9168E-10
# lat0 lon0 xBary yBary zBary JD0
0.370885 10.514081 0.978213 0.001914 -0.280187 2457223.007519
# Heliocentric elements and errors
Epoch: 2457220.5000 = 2015/07/17
Mean Anomaly: 91.40203 +/- 0.203
Argument of Peri: 65.15111 +/- 0.150
Long of Asc Node: 192.99126 +/- 0.000
Inclination: 5.46743 +/- 0.001
Eccentricity: 0.17514090 +/- 0.0011
Semi-Major Axis: 39.43522312 +/- 0.0164
Time of Perihelion: 2434254.8787 +/- 49.0
Perihelion: 32.52850284 +/- 0.0453
Aphelion: 46.34194340 +/- 0.0474
Period (y) 247.6479 +/- 0.15
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 40.26435839 +/- 0.0012
Ecliptic Y 6.47884197 +/- 0.0002
Ecliptic Z 0.26211774 +/- 0.0000
Ecliptic XDOT 0.00003836 +/- 0.0000
Ecliptic YDOT 0.00263558 +/- 0.0000
Ecliptic ZDOT -0.00024498 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.78311728 +/- 0.0012
Geocenter to KBO 40.49468972 +/- 0.0012
# Hcoef: 8.45
The following table shows the complete astrometric record for 15RT277. 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 (15RT277) followed by the observatory code and reference code for the source of the astrometry.
2015 07 19.50673 00 38 04.240 +04 30 13.16 24.7r 15RT277 568 C~2lVN 2015 08 11.49525 00 37 27.623 +04 26 00.09 24.3r 15RT277 568 C~2lVN 2015 08 11.53687 00 37 27.523 +04 25 59.50 24.5r 15RT277 568 C~2lVN 2015 09 08.40090 00 35 53.211 +04 15 28.56 24.4r 15RT277 568 C~2lVN 2015 09 08.50503 00 35 52.773 +04 15 25.72 24.4r 15RT277 568 C~2lVN 2015 09 08.54864 00 35 52.576 +04 15 24.50 24.5r 15RT277 568 C~2lVN 2015 09 09.52421 00 35 48.535 +04 14 57.52 24.5w 15RT277 568 C~2lVO 2015 09 10.46510 00 35 44.609 +04 14 31.31 24.6w 15RT277 568 C~2lVO 2015 10 03.37987 00 34 02.086 +04 03 06.15 25.2w 15RT277 568 C~2lVO 2015 10 07.34557 00 33 43.855 +04 01 03.68 24.2r 15RT277 568 C~2lVO 2015 10 07.36748 00 33 43.728 +04 01 02.52 23.9r 15RT277 568 C~2lVO 2015 10 07.40358 00 33 43.577 +04 01 01.54 25.8r 15RT277 568 C~2lVO 2015 11 07.24449 00 31 33.890 +03 46 21.14 24.9w 15RT277 568 C~2lVO 2015 11 07.29726 00 31 33.692 +03 46 19.75 24.6w 15RT277 568 C~2lVO 2015 12 07.32092 00 30 18.408 +03 37 22.22 24.9w 15RT277 568 C~2lVO 2016 01 01.24995 00 30 14.539 +03 36 10.39 24.8w 15RT277 568 C~2lVO 2016 09 26.57954 00 39 42.532 +04 30 59.97 24.7w 15RT277 568 C~2lVO 2016 11 04.28299 00 36 53.552 +04 12 05.58 24.8w 15RT277 568 C~2lVO 2016 11 04.34222 00 36 53.329 +04 12 04.27 24.7w 15RT277 568 C~2lVO 2016 12 29.26158 00 35 17.997 +04 00 24.93 24.4w 15RT277 568 C~2lVO 2017 01 03.23211 00 35 22.478 +04 00 44.99 24.9w 15RT277 568 C~2lVO 2017 01 27.23800 00 36 15.620 +04 05 45.94 24.8w 15RT277 568 C~2lVO 2017 01 28.23385 00 36 18.891 +04 06 05.20 24.7w 15RT277 568 C~2lVO 2017 01 30.24057 00 36 25.735 +04 06 45.98 15RT277 568 C~2lVO 2017 11 22.37200 00 41 04.259 +04 29 55.66 25.0w 15RT277 568 C~2lVO 2017 12 23.29716 00 40 20.073 +04 24 29.67 25.1w 15RT277 568 C~2lVO
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 0.02
2 0.0629 -602.97 -0.04 -17.90 -0.06
3 0.0631 -604.58 0.11 -17.85 -0.00
4 0.1393 -2149.72 0.28 -44.09 -0.07
5 0.1396 -2156.86 0.27 -44.13 -0.05
6 0.1397 -2160.05 0.08 -44.09 0.01
7 0.1424 -2226.25 -0.02 -45.14 -0.00
8 0.1450 -2290.56 -0.05 -46.16 0.01
9 0.2077 -3970.63 -0.27 -72.92 0.22
10 0.2186 -4269.73 0.18 -78.15 0.17
11 0.2186 -4271.93 -0.35 -78.46 -0.14
12 0.2187 -4274.39 -0.05 -78.48 -0.12
13 0.3032 -6406.53 0.11 -123.24 0.00
14 0.3033 -6409.81 -0.01 -123.35 -0.05
15 0.3855 -7658.83 -0.09 -172.95 0.06
16 0.4538 -7740.50 0.08 -216.14 0.09
17 1.1912 1370.52 -0.22 -533.19 -0.07
18 1.2971 -1399.31 -0.07 -585.35 -0.13
19 1.2973 -1402.90 0.06 -585.25 0.03
20 1.4477 -2989.47 0.01 -667.97 0.13
21 1.4613 -2919.92 0.04 -675.89 -0.18
22 1.5270 -2070.36 -0.06 -711.61 0.00
23 1.5297 -2017.78 -0.13 -713.12 -0.05
24 1.5352 -1907.59 0.11 -715.84 0.16
25 2.3460 2469.98 -0.16 -1070.97 -0.07
26 2.4306 1734.22 0.30 -1112.24 0.09
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.
15RT277 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.785 39.833 39.737 ecceobj 0.174 0.177 0.171 incobj 5.440 5.440 5.440 qmin 31.829 31.785 31.844 qmax 47.738 47.897 47.687 amean 39.457 39.458 39.457 amin 38.949 38.911 39.001 amax 40.003 40.062 39.982 emean 0.176 0.177 0.175 emin 0.158 0.155 0.156 emax 0.194 0.196 0.193 imean 6.153 6.609 5.957 imin 5.506 5.542 5.384 imax 6.737 7.537 6.570 excite_mean 0.207 0.211 0.204 fracstop 1.000 1.000 1.000 cjmean 3.003 3.001 3.005 libcent 0 180.1 178.5 180.1 libamp 0 109.8 131.9 94.9 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 175.2 182.0 181.5 kozaiamp 180.0 179.9 180.0