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: 15RC280
# Created Sun Nov 24 02:10:25 2024
# Orbit generated from Bernstein formalism
# Fitting 23 observations of 23
# Arc: 2.36y
# First observation: 2015/07/14
# Last observation: 2017/11/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000115 0.024584 0.000001 0.000150 0.024478 0.000000
# Chi-squared of fit: 5.12 DOF: 40 RMS: 0.08
# Min/Max residuals: -0.15 0.23
# Exact a, adot, b, bdot, g, gdot:
1.571733E-05 2.426388E-02 2.091120E-07 1.492655E-04 2.430047E-02 9.573787E-04
# Covariance matrix:
2.7904E-13 8.9035E-14 -1.2342E-15 2.4617E-15 2.7106E-13 6.8579E-12
8.9035E-14 5.6906E-13 -2.6709E-15 7.7062E-15 4.5827E-13 2.2662E-11
-1.2342E-15 -2.6709E-15 1.2503E-13 -9.8916E-14 -2.9816E-15 -1.4567E-13
2.4617E-15 7.7062E-15 -9.8916E-14 1.5636E-13 7.6000E-15 4.7574E-13
2.7106E-13 4.5827E-13 -2.9816E-15 7.6000E-15 5.6567E-13 2.2002E-11
6.8579E-12 2.2662E-11 -1.4567E-13 4.7574E-13 2.2002E-11 1.4183E-09
# lat0 lon0 xBary yBary zBary JD0
0.290981 10.989124 0.999535 0.001071 -0.190727 2457218.072199
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 17.92764 +/- 1.790
Argument of Peri: 19.10309 +/- 1.970
Long of Asc Node: 330.91630 +/- 0.074
Inclination: 0.46338 +/- 0.001
Eccentricity: 0.04383154 +/- 0.0006
Semi-Major Axis: 43.14126458 +/- 0.0047
Time of Perihelion: 2452056.3333 +/- 514.6
Perihelion: 41.25031661 +/- 0.0261
Aphelion: 45.03221256 +/- 0.0262
Period (y) 283.3658 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 40.77054270 +/- 0.0013
Ecliptic Y 6.89980116 +/- 0.0002
Ecliptic Z 0.20904983 +/- 0.0000
Ecliptic XDOT -0.00041759 +/- 0.0000
Ecliptic YDOT 0.00269786 +/- 0.0000
Ecliptic ZDOT 0.00001743 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.35079334 +/- 0.0012
Geocenter to KBO 41.15145952 +/- 0.0013
# Hcoef: 8.84
The following table shows the complete astrometric record for 15RC280. 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 (15RC280) followed by the observatory code and reference code for the source of the astrometry.
2015 07 14.57141 00 39 56.997 +04 36 58.96 25.2r 15RC280 568 C~2nvp 2015 07 19.54942 00 39 55.198 +04 36 50.34 25.0r 15RC280 568 C~2nvp 2015 09 08.40906 00 37 48.086 +04 23 42.93 24.9r 15RC280 568 C~2nvp 2015 09 08.51318 00 37 47.665 +04 23 40.51 24.6r 15RC280 568 C~2nvp 2015 09 08.55681 00 37 47.479 +04 23 39.26 24.9r 15RC280 568 C~2nvp 2015 09 09.53240 00 37 43.526 +04 23 14.31 25.3w 15RC280 568 C~2nvp 2015 09 10.47324 00 37 39.681 +04 22 49.94 25.2w 15RC280 568 C~2nvp 2015 09 16.46364 00 37 14.431 +04 20 10.45 23.3w 15RC280 568 C~2nvp 2015 10 03.39174 00 35 58.858 +04 12 10.41 25.4w 15RC280 568 C~2nvp 2015 10 07.35863 00 35 40.846 +04 10 15.73 24.4r 15RC280 568 C~2nvp 2015 10 07.41176 00 35 40.598 +04 10 14.12 25.4r 15RC280 568 C~2nvp 2015 11 07.25497 00 33 32.194 +03 56 30.00 25.7w 15RC280 568 C~2nvp 2015 11 10.39374 00 33 21.336 +03 55 20.08 24.8w 15RC280 568 C~2nvp 2015 12 07.33142 00 32 16.637 +03 48 17.18 25.1w 15RC280 568 C~2nvp 2016 01 01.26036 00 32 11.712 +03 47 36.07 25.8w 15RC280 568 C~2nvp 2016 09 05.53675 00 43 08.286 +04 58 13.54 25.4w 15RC280 568 C~2nvp 2016 09 07.47613 00 43 00.669 +04 57 25.93 25.5w 15RC280 568 C~2nvp 2016 09 07.52244 00 43 00.479 +04 57 24.76 25.3w 15RC280 568 C~2nvp 2016 11 04.28299 00 38 51.216 +04 31 03.39 25.4w 15RC280 568 C~2nvp 2016 11 04.34222 00 38 50.987 +04 31 02.03 25.4w 15RC280 568 C~2nvp 2017 01 27.24379 00 38 10.674 +04 26 15.78 25.7w 15RC280 568 C~2nvp 2017 01 28.23958 00 38 13.864 +04 26 35.87 25.6w 15RC280 568 C~2nvp 2017 11 22.36455 00 43 03.663 +04 58 18.02 25.0w 15RC280 568 C~2nvp
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 0.0136 -28.12 0.14 2.61 0.06
3 0.1529 -2085.52 -0.10 23.55 -0.07
4 0.1532 -2092.26 0.10 23.80 0.10
5 0.1533 -2095.31 -0.04 23.74 0.01
6 0.1560 -2159.49 0.01 23.99 -0.00
7 0.1585 -2221.95 0.01 24.15 -0.07
8 0.1749 -2631.95 0.01 25.70 -0.00
9 0.2213 -3860.41 -0.12 28.28 -0.07
10 0.2321 -4153.37 -0.02 28.73 0.09
11 0.2323 -4157.41 -0.08 28.71 0.04
12 0.3167 -6249.29 0.09 26.80 -0.06
13 0.3253 -6426.35 -0.03 26.49 0.13
14 0.3991 -7484.13 0.13 19.15 -0.10
15 0.4673 -7568.19 -0.05 10.41 -0.07
16 1.1471 3130.28 -0.07 54.36 -0.05
17 1.1524 3006.87 0.03 55.01 0.05
18 1.1525 3003.80 -0.00 55.04 0.05
19 1.3106 -1044.26 -0.05 58.37 -0.13
20 1.3108 -1047.94 -0.07 58.46 -0.06
21 1.5405 -1714.79 0.23 31.59 0.09
22 1.5432 -1663.02 -0.15 31.36 0.18
23 2.3595 3068.43 0.04 85.48 -0.07
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.
15RC280 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.584 43.606 43.563 ecceobj 0.054 0.055 0.052 incobj 0.463 0.463 0.463 qmin 40.277 40.229 40.289 qmax 46.641 46.705 46.551 amean 43.343 43.366 43.323 amin 43.011 43.027 42.989 amax 43.695 43.719 43.673 emean 0.051 0.052 0.050 emin 0.031 0.033 0.030 emax 0.067 0.069 0.066 imean 2.174 2.177 2.170 imin 1.166 1.186 1.144 imax 2.927 2.921 2.929 excite_mean 0.064 0.065 0.063 fracstop 1.000 1.000 1.000 cjmean 3.089 3.089 3.089 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 183.8 184.6 183.6 kozaiamp 180.0 180.0 180.0