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: 15RL280
# Created Sun Nov 24 02:10:25 2024
# Orbit generated from Bernstein formalism
# Fitting 32 observations of 32
# Arc: 2.25y
# First observation: 2015/06/23
# Last observation: 2017/09/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000078 0.023394 0.000002 0.001231 0.023682 0.000000
# Chi-squared of fit: 13.57 DOF: 58 RMS: 0.12
# Min/Max residuals: -0.33 0.30
# Exact a, adot, b, bdot, g, gdot:
1.521186E-05 2.284433E-02 8.565814E-07 1.204319E-03 2.327117E-02 -4.648591E-04
# Covariance matrix:
1.8912E-13 2.9068E-14 -5.6211E-15 7.4011E-15 1.7138E-13 2.5777E-12
2.9068E-14 4.1036E-13 -1.4341E-14 3.0706E-14 3.4412E-13 1.0582E-11
-5.6211E-15 -1.4341E-14 1.0854E-13 -8.1293E-14 -1.6594E-14 -4.7382E-13
7.4011E-15 3.0706E-14 -8.1293E-14 1.0350E-13 3.0086E-14 1.1375E-12
1.7138E-13 3.4412E-13 -1.6594E-14 3.0086E-14 4.4107E-13 1.0400E-11
2.5777E-12 1.0582E-11 -4.7382E-13 1.1375E-12 1.0400E-11 3.9129E-10
# lat0 lon0 xBary yBary zBary JD0
1.649860 7.379731 1.011477 -0.002762 0.099161 2457197.075148
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 317.90343 +/- 0.468
Argument of Peri: 75.62947 +/- 0.563
Long of Asc Node: 337.74217 +/- 0.006
Inclination: 3.48587 +/- 0.001
Eccentricity: 0.06407994 +/- 0.0007
Semi-Major Axis: 44.92897891 +/- 0.0049
Time of Perihelion: 2470053.2083 +/- 143.1
Perihelion: 42.04993248 +/- 0.0296
Aphelion: 47.80802533 +/- 0.0297
Period (y) 301.1605 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 42.62606199 +/- 0.0012
Ecliptic Y 4.50184892 +/- 0.0001
Ecliptic Z 1.23731219 +/- 0.0000
Ecliptic XDOT -0.00040594 +/- 0.0000
Ecliptic YDOT 0.00265159 +/- 0.0000
Ecliptic ZDOT 0.00014012 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.88098350 +/- 0.0012
Geocenter to KBO 42.97163179 +/- 0.0012
# Hcoef: 8.61
The following table shows the complete astrometric record for 15RL280. 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 (15RL280) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.57437 00 24 29.545 +04 26 38.86 25.0r 15RL280 568 C~2nvq 2015 07 14.57959 00 24 36.921 +04 28 35.62 25.7r 15RL280 568 C~2nvq 2015 07 19.55857 00 24 33.278 +04 28 28.30 25.8r 15RL280 568 C~2nvq 2015 08 19.56719 00 23 28.105 +04 22 58.71 24.7r 15RL280 568 C~2nvq 2015 08 20.39916 00 23 25.456 +04 22 43.64 24.6r 15RL280 568 C~2nvq 2015 08 20.44552 00 23 25.325 +04 22 42.81 25.0r 15RL280 568 C~2nvq 2015 09 07.54637 00 22 19.317 +04 16 15.75 25.1w 15RL280 568 C~2nvq 2015 09 09.37247 00 22 11.913 +04 15 30.94 25.0r 15RL280 568 C~2nvq 2015 09 09.41679 00 22 11.740 +04 15 29.96 25.3r 15RL280 568 C~2nvq 2015 09 09.45780 00 22 11.565 +04 15 29.06 24.7r 15RL280 568 C~2nvq 2015 09 10.48141 00 22 07.364 +04 15 03.67 25.0w 15RL280 568 C~2nvq 2015 09 18.43550 00 21 33.823 +04 11 38.37 25.4w 15RL280 568 C~2nvq 2015 10 08.32355 00 20 06.872 +04 02 33.08 25.0w 15RL280 568 C~2nvq 2015 10 08.37617 00 20 06.631 +04 02 31.69 25.1w 15RL280 568 C~2nvq 2015 10 09.29322 00 20 02.680 +04 02 06.50 25.0w 15RL280 568 C~2nvq 2015 11 15.27356 00 17 47.076 +03 47 09.54 24.8w 15RL280 568 C~2nvq 2016 01 01.28060 00 17 09.660 +03 41 45.76 25.1w 15RL280 568 C~2nvq 2016 09 05.51068 00 27 13.738 +04 52 26.93 25.4w 15RL280 568 C~2nvq 2016 09 05.51877 00 27 13.691 +04 52 26.72 25.4w 15RL280 568 C~2nvq 2016 09 07.45091 00 27 06.006 +04 51 40.80 25.1w 15RL280 568 C~2nvq 2016 09 07.45899 00 27 05.985 +04 51 40.77 25.3w 15RL280 568 C~2nvq 2016 09 07.49637 00 27 05.828 +04 51 39.83 25.0w 15RL280 568 C~2nvq 2016 09 26.52564 00 25 44.887 +04 43 25.34 25.0w 15RL280 568 C~2nvq 2016 10 26.32563 00 23 38.502 +04 29 56.71 24.7r 15RL280 568 C~2nvq 2016 10 26.39142 00 23 38.241 +04 29 55.20 25.2r 15RL280 568 C~2nvq 2016 10 30.34056 00 23 23.402 +04 28 16.90 24.8w 15RL280 568 C~2nvq 2016 11 03.34512 00 23 09.125 +04 26 41.67 25.6w 15RL280 568 C~2nvq 2016 12 24.23251 00 21 45.549 +04 16 18.62 15RL280 568 C~2nvq 2017 01 02.23304 00 21 53.605 +04 16 51.97 24.6w 15RL280 568 C~2nvq 2017 01 26.23696 00 22 49.357 +04 22 06.10 24.6w 15RL280 568 C~2nvq 2017 09 15.44018 00 31 24.600 +05 24 07.68 24.8w 15RL280 568 C~2nvq 2017 09 22.50534 00 30 54.238 +05 21 02.96 24.4w 15RL280 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 0.06 0.00 -0.01
2 0.0575 147.50 -0.01 63.59 0.00
3 0.0711 94.57 0.09 78.42 0.01
4 0.1560 -930.97 0.05 161.55 0.10
5 0.1583 -973.31 -0.29 163.40 0.12
6 0.1584 -975.44 -0.01 163.41 0.01
7 0.2080 -2035.36 -0.08 199.16 0.03
8 0.2130 -2154.81 -0.29 201.92 -0.07
9 0.2131 -2157.58 -0.09 202.05 -0.03
10 0.2132 -2160.34 -0.10 202.26 0.09
11 0.2160 -2228.11 -0.07 203.86 0.09
12 0.2378 -2770.21 0.30 214.32 -0.33
13 0.2923 -4181.09 0.08 229.95 -0.09
14 0.2924 -4184.95 -0.02 230.10 0.02
15 0.2949 -4249.24 0.20 230.45 0.11
16 0.3962 -6469.41 -0.01 213.59 -0.23
17 0.5249 -7112.72 0.04 139.20 0.20
18 1.2045 2866.92 0.16 451.86 -0.03
19 1.2045 2866.20 -0.04 451.94 0.03
20 1.2098 2742.52 -0.09 455.10 -0.06
21 1.2098 2742.21 0.14 455.19 0.02
22 1.2099 2739.69 0.07 455.26 0.00
23 1.2620 1432.74 0.05 478.93 -0.13
24 1.3436 -622.67 0.12 483.82 -0.05
25 1.3438 -626.85 0.14 483.98 0.11
26 1.3546 -869.55 -0.02 481.58 -0.02
27 1.3656 -1103.32 0.02 478.70 0.00
28 1.5049 -2498.01 -0.05 402.05 0.05
29 1.5295 -2374.14 -0.06 384.89 0.01
30 1.5952 -1483.95 -0.21 342.79 0.08
31 2.2310 7063.07 0.08 722.23 -0.00
32 2.2503 6573.00 -0.16 730.75 -0.03
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.
15RL280 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.394 45.405 45.383 ecceobj 0.071 0.072 0.070 incobj 3.472 3.473 3.472 qmin 41.220 41.226 41.257 qmax 49.272 49.327 49.204 amean 45.145 45.154 45.132 amin 44.776 44.787 44.764 amax 45.524 45.546 45.519 emean 0.069 0.070 0.068 emin 0.056 0.056 0.055 emax 0.083 0.083 0.082 imean 4.447 4.447 4.448 imin 3.927 3.923 3.919 imax 4.920 4.909 4.924 excite_mean 0.104 0.105 0.103 fracstop 1.000 1.000 1.000 cjmean 3.102 3.102 3.102 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 179.0 178.8 179.0 kozaiamp 180.0 180.0 180.0