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: 15RR281
# Created Sun Nov 24 02:10:26 2024
# Orbit generated from Bernstein formalism
# Fitting 38 observations of 38
# Arc: 2.50y
# First observation: 2015/06/23
# Last observation: 2017/12/23
Preliminary a, adot, b, bdot, g, gdot:
-0.000068 0.022549 0.000002 -0.000364 0.023372 0.000000
# Chi-squared of fit: 9.90 DOF: 70 RMS: 0.09
# Min/Max residuals: -0.29 0.23
# Exact a, adot, b, bdot, g, gdot:
1.528535E-05 2.216069E-02 -4.596114E-07 -3.598877E-04 2.303408E-02 2.062442E-03
# Covariance matrix:
1.6565E-13 3.7827E-14 -2.1114E-15 -8.6196E-16 1.4319E-13 2.5518E-12
3.7827E-14 3.2302E-13 -2.4460E-15 -5.1388E-15 2.9985E-13 1.1446E-11
-2.1114E-15 -2.4460E-15 9.5082E-14 -6.4385E-14 -3.7327E-15 -3.0472E-14
-8.6196E-16 -5.1388E-15 -6.4385E-14 7.2123E-14 -5.2427E-15 -3.2366E-13
1.4319E-13 2.9985E-13 -3.7327E-15 -5.2427E-15 3.7348E-13 1.2137E-11
2.5518E-12 1.1446E-11 -3.0472E-14 -3.2366E-13 1.2137E-11 6.7501E-10
# lat0 lon0 xBary yBary zBary JD0
1.250823 10.668048 1.004170 -0.003325 0.156699 2457197.094148
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 70.63751 +/- 0.058
Argument of Peri: 47.06499 +/- 0.168
Long of Asc Node: 243.72705 +/- 0.021
Inclination: 1.54378 +/- 0.000
Eccentricity: 0.07094480 +/- 0.0012
Semi-Major Axis: 44.09742623 +/- 0.0083
Time of Perihelion: 2436203.4617 +/- 16.3
Perihelion: 40.96894295 +/- 0.0522
Aphelion: 47.22590951 +/- 0.0524
Period (y) 292.8384 +/- 0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 42.68174398 +/- 0.0011
Ecliptic Y 7.01948390 +/- 0.0002
Ecliptic Z 0.94772900 +/- 0.0000
Ecliptic XDOT -0.00024831 +/- 0.0000
Ecliptic YDOT 0.00262782 +/- 0.0000
Ecliptic ZDOT -0.00003735 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.26548987 +/- 0.0011
Geocenter to KBO 43.41393634 +/- 0.0012
# Hcoef: 8.56
The following table shows the complete astrometric record for 15RR281. 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 (15RR281) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.59337 00 37 15.159 +05 22 24.29 25.0r 15RR281 568 C~36T3 2015 07 14.54596 00 37 28.929 +05 24 27.32 23.3r 15RR281 568 C~36T3 2015 07 19.51085 00 37 26.812 +05 24 22.38 24.7r 15RR281 568 C~36T3 2015 08 11.49932 00 36 51.698 +05 21 13.06 25.9r 15RR281 568 C~36T3 2015 08 11.55875 00 36 51.543 +05 21 12.12 25.1r 15RR281 568 C~36T3 2015 09 08.40498 00 35 22.032 +05 12 08.55 24.9r 15RR281 568 C~36T3 2015 09 08.50910 00 35 21.617 +05 12 05.99 24.8r 15RR281 568 C~36T3 2015 09 08.55273 00 35 21.439 +05 12 05.11 25.1r 15RR281 568 C~36T3 2015 09 09.52831 00 35 17.615 +05 11 41.16 25.3w 15RR281 568 C~36T3 2015 09 10.46916 00 35 13.894 +05 11 17.81 25.3w 15RR281 568 C~36T3 2015 09 16.45837 00 34 49.529 +05 08 45.04 25.5w 15RR281 568 C~36T3 2015 10 03.38583 00 33 36.868 +05 01 00.82 23.8w 15RR281 568 C~36T3 2015 10 07.35453 00 33 19.569 +04 59 09.09 24.8r 15RR281 568 C~36T3 2015 10 07.40769 00 33 19.335 +04 59 07.58 25.5r 15RR281 568 C~36T3 2015 11 07.24974 00 31 16.630 +04 45 33.07 25.2w 15RR281 568 C~36T3 2015 11 07.30254 00 31 16.449 +04 45 31.96 25.1w 15RR281 568 C~36T3 2015 11 10.38589 00 31 06.313 +04 44 22.54 25.2w 15RR281 568 C~36T3 2015 12 07.32615 00 30 05.073 +04 37 00.86 25.3w 15RR281 568 C~36T3 2016 01 01.25515 00 30 01.143 +04 35 42.28 25.2w 15RR281 568 C~36T3 2016 09 05.50258 00 40 19.797 +05 42 21.49 25.5w 15RR281 568 C~36T3 2016 09 06.45678 00 40 16.188 +05 41 58.95 24.8w 15RR281 568 C~36T3 2016 09 06.49805 00 40 16.022 +05 41 58.33 25.3w 15RR281 568 C~36T3 2016 09 26.43536 00 38 54.014 +05 33 23.20 25.3w 15RR281 568 C~36T3 2016 11 03.42043 00 36 16.281 +05 16 13.43 15RR281 568 C~36T3 2016 11 03.42622 00 36 16.275 +05 16 13.39 15RR281 568 C~36T3 2016 11 03.48549 00 36 16.061 +05 16 12.07 15RR281 568 C~36T3 2016 11 03.49128 00 36 16.034 +05 16 11.76 15RR281 568 C~36T3 2016 11 03.49709 00 36 16.019 +05 16 11.66 15RR281 568 C~36T3 2016 11 04.26545 00 36 13.290 +05 15 53.19 15RR281 568 C~36T3 2016 11 04.32471 00 36 13.073 +05 15 51.82 15RR281 568 C~36T3 2016 12 29.24332 00 34 42.707 +05 04 32.22 24.9w 15RR281 568 C~36T3 2016 12 29.26796 00 34 42.720 +05 04 32.31 25.2w 15RR281 568 C~36T3 2017 01 03.21350 00 34 46.938 +05 04 48.55 25.4w 15RR281 568 C~36T3 2017 01 03.23891 00 34 46.967 +05 04 48.79 24.8w 15RR281 568 C~36T3 2017 01 30.22844 00 35 46.900 +05 10 16.59 25.2w 15RR281 568 C~36T3 2017 11 22.36083 00 40 06.161 +05 38 46.90 25.1w 15RR281 568 C~36T3 2017 12 23.28786 00 39 24.441 +05 33 21.08 25.3w 15RR281 568 C~36T3 2017 12 23.30180 00 39 24.429 +05 33 21.08 25.5w 15RR281 568 C~36T3
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 0.04
2 0.0574 237.43 0.03 32.42 -0.12
3 0.0710 206.41 -0.17 40.29 0.13
4 0.1339 -350.20 0.23 72.08 -0.11
5 0.1341 -352.70 0.06 72.13 -0.17
6 0.2103 -1795.76 0.06 97.81 -0.06
7 0.2106 -1802.47 0.04 97.89 -0.09
8 0.2107 -1805.26 0.05 98.13 0.11
9 0.2134 -1867.20 0.01 98.58 0.03
10 0.2160 -1927.50 -0.08 98.98 -0.04
11 0.2323 -2322.28 -0.07 101.74 0.19
12 0.2787 -3503.24 0.01 102.47 -0.15
13 0.2896 -3784.94 -0.07 101.63 0.07
14 0.2897 -3788.75 -0.05 101.62 0.05
15 0.3741 -5796.35 -0.00 76.44 -0.02
16 0.3743 -5799.28 0.06 76.49 0.07
17 0.3827 -5966.03 -0.04 72.52 0.07
18 0.4565 -6982.58 0.00 28.34 -0.03
19 0.5247 -7067.71 0.05 -20.66 0.14
20 1.2044 3005.52 0.09 20.66 0.02
21 1.2070 2947.12 -0.04 21.01 -0.19
22 1.2071 2944.59 0.02 21.41 0.16
23 1.2617 1616.28 -0.09 27.00 -0.10
24 1.3657 -954.36 -0.29 4.37 -0.04
25 1.3657 -954.46 -0.04 4.37 -0.03
26 1.3659 -957.92 0.04 4.41 0.06
27 1.3659 -958.41 -0.11 4.29 -0.06
28 1.3659 -958.66 -0.01 4.28 -0.06
29 1.3680 -1003.40 0.02 3.32 -0.03
30 1.3682 -1006.92 0.01 3.33 0.03
31 1.5185 -2515.50 -0.01 -90.58 0.01
32 1.5186 -2515.29 0.00 -90.58 0.05
33 1.5322 -2450.95 0.03 -100.45 0.01
34 1.5322 -2450.46 0.12 -100.40 0.10
35 1.6061 -1498.21 0.15 -151.23 -0.10
36 2.4169 2734.17 0.12 -97.13 0.07
37 2.5016 2033.41 0.02 -152.99 -0.06
38 2.5016 2033.24 -0.11 -152.92 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.
15RR281 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.544 44.573 44.517 ecceobj 0.075 0.078 0.072 incobj 1.542 1.542 1.542 qmin 40.399 40.258 40.511 qmax 48.501 48.619 48.343 amean 44.308 44.336 44.282 amin 43.960 43.986 43.932 amax 44.681 44.711 44.667 emean 0.070 0.073 0.067 emin 0.054 0.057 0.051 emax 0.086 0.088 0.083 imean 3.349 3.354 3.344 imin 2.692 2.695 2.689 imax 3.917 3.925 3.910 excite_mean 0.091 0.094 0.089 fracstop 1.000 1.000 1.000 cjmean 3.095 3.095 3.095 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 176.8 176.6 176.8 kozaiamp 180.0 180.0 180.0