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: 15RJ280
# Created Wed May 8 01:17:19 2024
# Orbit generated from Bernstein formalism
# Fitting 31 observations of 31
# Arc: 1.47y
# First observation: 2015/07/14
# Last observation: 2017/01/03
Preliminary a, adot, b, bdot, g, gdot:
-0.000073 0.022541 0.000002 0.000441 0.023207 0.000000
# Chi-squared of fit: 6.99 DOF: 56 RMS: 0.08
# Min/Max residuals: -0.17 0.24
# Exact a, adot, b, bdot, g, gdot:
1.540921E-05 2.225633E-02 -6.353061E-08 4.366987E-04 2.302280E-02 1.741545E-03
# Covariance matrix:
2.9565E-13 9.6162E-14 -4.4316E-15 1.2653E-14 3.5137E-13 1.5490E-11
9.6162E-14 4.1629E-13 -5.7093E-15 1.7729E-14 4.3655E-13 2.1667E-11
-4.4316E-15 -5.7093E-15 1.2436E-13 -1.1055E-13 -9.4982E-15 -4.9221E-13
1.2653E-14 1.7729E-14 -1.1055E-13 1.5705E-13 2.8694E-14 1.7542E-12
3.5137E-13 4.3655E-13 -9.4982E-15 2.8694E-14 7.3531E-13 3.5086E-11
1.5490E-11 2.1667E-11 -4.9221E-13 1.7542E-12 3.5086E-11 2.1383E-09
# lat0 lon0 xBary yBary zBary JD0
0.907395 11.565015 1.001414 0.002962 -0.180580 2457218.068079
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 54.08546 +/- 0.697
Argument of Peri: 337.85215 +/- 0.917
Long of Asc Node: 332.05967 +/- 0.025
Inclination: 1.46116 +/- 0.001
Eccentricity: 0.06416936 +/- 0.0019
Semi-Major Axis: 45.19480006 +/- 0.0116
Time of Perihelion: 2440537.6757 +/- 214.8
Perihelion: 42.29467882 +/- 0.0857
Aphelion: 48.09492129 +/- 0.0859
Period (y) 303.8372 +/- 0.12
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 42.92213662 +/- 0.0016
Ecliptic Y 7.76228088 +/- 0.0003
Ecliptic Z 0.68790468 +/- 0.0000
Ecliptic XDOT -0.00033083 +/- 0.0000
Ecliptic YDOT 0.00262803 +/- 0.0000
Ecliptic ZDOT 0.00005527 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.62380118 +/- 0.0016
Geocenter to KBO 43.43519431 +/- 0.0016
# Hcoef: 8.24
The following table shows the complete astrometric record for 15RJ280. 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 (15RJ280) followed by the observatory code and reference code for the source of the astrometry.
2015 07 14.56729 00 41 06.499 +05 24 32.64 24.3r 15RJ280 568 C~2nvq 2015 07 19.54532 00 41 04.791 +05 24 29.61 24.9r 15RJ280 568 C~2nvq 2015 08 11.50751 00 40 31.475 +05 21 33.08 24.5r 15RJ280 568 C~2nvq 2015 08 11.54916 00 40 31.371 +05 21 32.43 24.4r 15RJ280 568 C~2nvq 2015 09 08.41317 00 39 03.781 +05 12 47.74 24.6r 15RJ280 568 C~2nvq 2015 09 08.51862 00 39 03.368 +05 12 45.23 24.5r 15RJ280 568 C~2nvq 2015 09 08.56094 00 39 03.202 +05 12 44.23 24.8r 15RJ280 568 C~2nvq 2015 09 09.53652 00 38 59.437 +05 12 21.07 24.9w 15RJ280 568 C~2nvq 2015 09 10.47732 00 38 55.776 +05 11 58.56 25.1w 15RJ280 568 C~2nvq 2015 09 16.46890 00 38 31.725 +05 09 29.99 24.0w 15RJ280 568 C~2nvq 2015 10 07.36274 00 37 02.466 +05 00 10.19 24.5r 15RJ280 568 C~2nvq 2015 10 07.41585 00 37 02.233 +05 00 08.64 24.5r 15RJ280 568 C~2nvq 2015 11 07.31307 00 34 59.053 +04 46 55.63 24.7w 15RJ280 568 C~2nvq 2015 11 10.39917 00 34 48.792 +04 45 48.47 24.9w 15RJ280 568 C~2nvq 2015 12 07.33665 00 33 45.894 +04 38 42.63 24.8w 15RJ280 568 C~2nvq 2016 01 01.26556 00 33 39.648 +04 37 34.68 25.2w 15RJ280 568 C~2nvq 2016 09 05.50258 00 43 56.241 +05 45 21.91 25.2w 15RJ280 568 C~2nvq 2016 09 05.54080 00 43 56.107 +05 45 20.97 24.6w 15RJ280 568 C~2nvq 2016 09 06.45678 00 43 52.704 +05 45 00.25 25.1w 15RJ280 568 C~2nvq 2016 09 06.49805 00 43 52.557 +05 44 59.42 25.1w 15RJ280 568 C~2nvq 2016 09 07.48017 00 43 48.843 +05 44 36.89 24.7w 15RJ280 568 C~2nvq 2016 09 07.52648 00 43 48.666 +05 44 35.66 24.8w 15RJ280 568 C~2nvq 2016 09 26.55282 00 42 30.962 +05 36 36.73 24.6w 15RJ280 568 C~2nvq 2016 11 02.46170 00 39 57.369 +05 20 20.76 24.5r 15RJ280 568 C~2nvq 2016 11 03.42622 00 39 53.851 +05 19 57.77 24.8w 15RJ280 568 C~2nvq 2016 11 03.49128 00 39 53.631 +05 19 56.43 24.9w 15RJ280 568 C~2nvq 2016 11 04.27124 00 39 50.820 +05 19 38.06 24.7w 15RJ280 568 C~2nvq 2016 11 04.33051 00 39 50.608 +05 19 36.72 25.0w 15RJ280 568 C~2nvq 2016 11 04.35961 00 39 50.494 +05 19 36.02 24.8w 15RJ280 568 C~2nvq 2016 12 29.26796 00 38 16.458 +05 08 44.26 24.8w 15RJ280 568 C~2nvq 2017 01 03.23891 00 38 20.188 +05 09 01.97 25.5w 15RJ280 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 -0.03 0.00 0.07
2 0.0136 -24.66 0.18 7.20 -0.17
3 0.0765 -551.59 -0.03 39.58 0.02
4 0.0766 -553.27 -0.14 39.59 -0.04
5 0.1529 -1962.57 -0.02 69.63 0.05
6 0.1532 -1969.23 -0.03 69.74 0.02
7 0.1533 -1971.90 -0.03 69.80 0.02
8 0.1560 -2032.72 -0.00 70.55 -0.01
9 0.1585 -2091.87 0.05 71.30 0.01
10 0.1750 -2480.69 0.10 75.60 -0.04
11 0.2322 -3927.37 -0.07 84.43 -0.04
12 0.2323 -3931.18 -0.09 84.37 -0.13
13 0.3169 -5936.84 0.02 79.29 -0.06
14 0.3253 -6104.41 0.05 77.93 0.16
15 0.3991 -7137.49 0.05 56.85 -0.02
16 0.4673 -7250.23 -0.04 31.18 0.16
17 1.1470 2820.94 -0.13 159.33 0.14
18 1.1471 2818.73 -0.01 159.24 0.01
19 1.1496 2763.87 0.02 159.99 -0.01
20 1.1497 2761.53 0.21 160.08 0.03
21 1.1524 2701.69 -0.04 160.98 0.09
22 1.1525 2698.78 -0.07 160.88 -0.07
23 1.2046 1443.87 -0.01 173.09 0.01
24 1.3057 -1048.57 -0.03 172.59 0.02
25 1.3083 -1105.92 -0.11 172.03 -0.10
26 1.3085 -1109.47 0.24 172.09 -0.04
27 1.3106 -1155.30 -0.02 171.64 -0.03
28 1.3108 -1158.74 0.07 171.65 -0.03
29 1.3109 -1160.58 -0.04 171.67 -0.00
30 1.4612 -2708.45 0.10 123.05 -0.00
31 1.4748 -2650.24 -0.17 117.47 -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.
15RJ280 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.672 45.715 45.632 ecceobj 0.071 0.076 0.066 incobj 1.457 1.457 1.457 qmin 41.723 41.534 41.866 qmax 49.337 49.590 49.096 amean 45.415 45.457 45.374 amin 45.055 45.093 45.005 amax 45.793 45.850 45.760 emean 0.065 0.070 0.060 emin 0.052 0.057 0.047 emax 0.078 0.082 0.073 imean 2.785 2.788 2.783 imin 2.311 2.310 2.310 imax 3.178 3.182 3.179 excite_mean 0.081 0.085 0.078 fracstop 1.000 1.000 1.000 cjmean 3.111 3.110 3.111 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 175.4 175.3 175.1 kozaiamp 180.0 180.0 180.0