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: 15RO280
# Created Sun Dec 22 02:10:29 2024
# Orbit generated from Bernstein formalism
# Fitting 30 observations of 30
# Arc: 2.50y
# First observation: 2015/06/23
# Last observation: 2017/12/23
Preliminary a, adot, b, bdot, g, gdot:
-0.000101 0.021617 -0.000016 -0.015011 0.025611 0.000000
# Chi-squared of fit: 17.12 DOF: 54 RMS: 0.13
# Min/Max residuals: -0.27 0.33
# Exact a, adot, b, bdot, g, gdot:
1.365945E-05 2.114970E-02 -8.461540E-06 -1.476414E-02 2.523364E-02 5.001605E-04
# Covariance matrix:
1.7757E-13 1.4504E-14 1.1213E-14 -6.0911E-14 1.4895E-13 2.0023E-12
1.4504E-14 2.6413E-13 4.3424E-14 -1.9447E-13 2.4759E-13 6.3040E-12
1.1213E-14 4.3424E-14 1.2387E-13 -1.3597E-13 5.0000E-14 2.0162E-12
-6.0911E-14 -1.9447E-13 -1.3597E-13 3.5202E-13 -2.3502E-13 -8.5453E-12
1.4895E-13 2.4759E-13 5.0000E-14 -2.3502E-13 3.7335E-13 7.6474E-12
2.0023E-12 6.3040E-12 2.0162E-12 -8.5453E-12 7.6474E-12 2.7575E-10
# lat0 lon0 xBary yBary zBary JD0
2.587695 8.291319 1.009735 -0.005126 0.115490 2457197.056068
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 356.44456 +/- 0.823
Argument of Peri: 179.32389 +/- 0.897
Long of Asc Node: 190.53806 +/- 0.000
Inclination: 34.99412 +/- 0.001
Eccentricity: 0.04286084 +/- 0.0001
Semi-Major Axis: 41.28967464 +/- 0.0025
Time of Perihelion: 2458147.5877 +/- 221.5
Perihelion: 39.51996434 +/- 0.0032
Aphelion: 43.05938494 +/- 0.0034
Period (y) 265.3202 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 39.20315983 +/- 0.0010
Ecliptic Y 4.69354782 +/- 0.0001
Ecliptic Z 1.78893990 +/- 0.0000
Ecliptic XDOT -0.00020817 +/- 0.0000
Ecliptic YDOT 0.00228277 +/- 0.0000
Ecliptic ZDOT -0.00159776 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 39.52363139 +/- 0.0009
Geocenter to KBO 39.62962953 +/- 0.0010
# Hcoef: 9.10
The following table shows the complete astrometric record for 15RO280. 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 (15RO280) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.55529 00 26 21.734 +05 39 57.00 25.9r 15RO280 568 C~2nvq 2015 07 14.60008 00 26 33.227 +05 39 29.44 25.1r 15RO280 568 C~2nvq 2015 07 19.57916 00 26 30.059 +05 38 44.25 25.2r 15RO280 568 C~2nvq 2015 08 19.57540 00 25 24.058 +05 28 44.68 25.2r 15RO280 568 C~2nvq 2015 08 19.60440 00 25 23.958 +05 28 43.81 24.8r 15RO280 568 C~2nvq 2015 08 20.40889 00 25 21.310 +05 28 21.19 24.9r 15RO280 568 C~2nvq 2015 08 20.45757 00 25 21.146 +05 28 19.81 25.1r 15RO280 568 C~2nvq 2015 09 07.55453 00 24 11.921 +05 18 46.40 25.3w 15RO280 568 C~2nvq 2015 09 09.38065 00 24 04.110 +05 17 41.92 24.9r 15RO280 568 C~2nvq 2015 09 09.42501 00 24 03.914 +05 17 40.25 24.6r 15RO280 568 C~2nvq 2015 09 09.46595 00 24 03.735 +05 17 38.96 24.9r 15RO280 568 C~2nvq 2015 10 08.33404 00 21 51.529 +04 59 10.58 25.6w 15RO280 568 C~2nvq 2015 10 08.38664 00 21 51.305 +04 59 08.61 25.1w 15RO280 568 C~2nvq 2015 10 09.30373 00 21 47.080 +04 58 32.06 24.9w 15RO280 568 C~2nvq 2015 12 08.22831 00 18 39.679 +04 26 39.79 25.3w 15RO280 568 C~2nvq 2016 01 01.29102 00 18 46.298 +04 22 13.44 24.6w 15RO280 568 C~2nvq 2016 09 05.47023 00 30 14.908 +05 01 07.89 15RO280 568 C~2nvq 2016 09 06.42437 00 30 10.936 +05 00 34.41 15RO280 568 C~2nvq 2016 09 06.46487 00 30 10.754 +05 00 33.18 15RO280 568 C~2nvq 2016 09 25.31706 00 28 46.698 +04 48 51.02 24.8w 15RO280 568 C~2nvq 2016 09 26.42319 00 28 41.543 +04 48 07.47 24.8w 15RO280 568 C~2nvq 2016 10 30.34865 00 26 10.719 +04 26 21.38 15RO280 568 C~2nvq 2016 11 03.30427 00 25 55.720 +04 24 02.75 25.7w 15RO280 568 C~2nvq 2016 11 03.35669 00 25 55.521 +04 24 00.74 25.0w 15RO280 568 C~2nvq 2016 12 24.27431 00 24 27.695 +04 05 02.77 25.4w 15RO280 568 C~2nvq 2017 01 02.26396 00 24 36.849 +04 04 19.64 24.8w 15RO280 568 C~2nvq 2017 01 29.22410 00 25 49.440 +04 07 08.78 15RO280 568 C~2nvq 2017 09 15.44482 00 35 30.402 +04 36 40.31 25.5w 15RO280 568 C~2nvq 2017 09 22.50999 00 34 58.472 +04 32 12.47 26.6w 15RO280 568 C~2nvq 2017 12 23.30656 00 30 16.542 +03 47 07.85 25.6w 15RO280 568 C~2nvq
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 -0.08 0.00 -0.16
2 0.0576 146.67 0.10 -93.16 -0.18
3 0.0712 85.36 0.02 -115.97 -0.09
4 0.1561 -1056.83 0.19 -276.68 0.33
5 0.1562 -1058.55 0.13 -276.89 0.28
6 0.1584 -1103.81 -0.08 -282.01 0.02
7 0.1585 -1106.61 -0.07 -282.31 -0.02
8 0.2081 -2283.05 0.03 -399.27 -0.10
9 0.2131 -2415.73 -0.12 -412.22 -0.05
10 0.2132 -2419.08 -0.18 -412.59 -0.13
11 0.2133 -2422.05 -0.09 -412.72 0.01
12 0.2923 -4675.53 -0.17 -646.39 0.05
13 0.2925 -4679.39 0.19 -646.87 0.01
14 0.2950 -4751.89 -0.09 -655.33 -0.08
15 0.4591 -8086.26 -0.08 -1296.04 -0.06
16 0.5249 -8101.59 0.25 -1580.01 0.21
17 1.2044 2280.25 0.27 -3515.27 0.12
18 1.2070 2212.49 -0.02 -3522.65 -0.06
19 1.2071 2209.50 -0.08 -3522.71 0.17
20 1.2588 777.90 0.07 -3672.46 0.32
21 1.2618 689.90 -0.04 -3682.06 -0.07
22 1.3547 -1898.20 -0.13 -3990.94 -0.23
23 1.3655 -2159.14 0.11 -4029.54 -0.09
24 1.3656 -2162.67 0.02 -4030.21 -0.27
25 1.5050 -3820.46 -0.16 -4555.52 -0.03
26 1.5297 -3711.74 0.06 -4649.42 0.05
27 1.6035 -2646.96 0.05 -4924.12 0.07
28 2.2310 6042.83 0.01 -6722.46 -0.03
29 2.2504 5497.90 -0.08 -6781.33 0.07
30 2.5017 552.13 -0.02 -7608.52 -0.04
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.
15RO280 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.611 41.620 41.603 ecceobj 0.050 0.051 0.050 incobj 34.840 34.841 34.839 qmin 38.858 38.855 38.867 qmax 44.169 44.217 44.157 amean 41.444 41.453 41.436 amin 41.139 41.140 41.122 amax 41.751 41.786 41.757 emean 0.048 0.048 0.048 emin 0.038 0.038 0.038 emax 0.058 0.059 0.058 imean 34.893 34.893 34.893 imin 34.637 34.634 34.630 imax 35.157 35.150 35.151 excite_mean 0.574 0.574 0.574 fracstop 1.000 1.000 1.000 cjmean 2.649 2.649 2.649 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 183.9 184.2 184.0 kozaiamp 180.0 180.0 179.9