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: 15RP280
# Created Wed Dec 25 02:10:25 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 37 observations of 37
# Arc: 5.25y
# First observation: 2015/06/23
# Last observation: 2020/09/21
# Chi-squared of fit: 5.25 DOF: 68 RMS: 0.07
# Min/Max residuals: -0.19 0.17
# Exact a, adot, b, bdot, g, gdot:
1.442656E-05 2.070142E-02 -2.814954E-07 -9.020218E-04 2.216370E-02 2.408397E-03
# Covariance matrix:
1.3816E-13 -1.9051E-14 -3.1039E-15 4.8928E-17 8.7901E-14 -4.3440E-14
-1.9051E-14 1.8213E-13 -5.6567E-16 -6.5651E-15 1.2378E-13 1.8139E-12
-3.1039E-15 -5.6567E-16 6.3446E-14 -2.2024E-14 -3.9721E-15 -3.1343E-15
4.8928E-17 -6.5651E-15 -2.2024E-14 1.9781E-14 -4.8033E-15 -7.3407E-14
8.7901E-14 1.2378E-13 -3.9721E-15 -4.8033E-15 1.9225E-13 1.2929E-12
-4.3440E-14 1.8139E-12 -3.1343E-15 -7.3407E-14 1.2929E-12 2.0312E-11
# lat0 lon0 xBary yBary zBary JD0
2.482607 8.241910 1.009834 -0.004877 0.114629 2457197.056068
# Heliocentric elements and errors
Epoch: 2457196.5000 = 2015/06/23
Mean Anomaly: 81.46027 +/- 0.038
Argument of Peri: 42.30730 +/- 0.030
Long of Asc Node: 232.55245 +/- 0.004
Inclination: 3.48120 +/- 0.000
Eccentricity: 0.09230486 +/- 0.0002
Semi-Major Axis: 45.24947462 +/- 0.0032
Time of Perihelion: 2432039.3127 +/- 12.0
Perihelion: 41.07272823 +/- 0.0101
Aphelion: 49.42622101 +/- 0.0103
Period (y) 304.3887 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 44.63862263 +/- 0.0009
Ecliptic Y 5.44648343 +/- 0.0001
Ecliptic Z 1.95441834 +/- 0.0000
Ecliptic XDOT -0.00007012 +/- 0.0000
Ecliptic YDOT 0.00256787 +/- 0.0000
Ecliptic ZDOT -0.00009837 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.01205419 +/- 0.0009
Geocenter to KBO 45.11876190 +/- 0.0009
# Hcoef: 7.29
The following table shows the complete astrometric record for 15RP280. 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 (15RP280) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.55529 00 26 20.825 +05 32 59.25 24.1r 15RP280 568 C~2nvq 2015 07 14.60008 00 26 28.618 +05 34 54.56 23.7r 15RP280 568 C~2nvq 2015 07 19.57916 00 26 25.306 +05 34 48.20 23.8r 15RP280 568 C~2nvq 2015 08 13.47170 00 25 41.206 +05 31 10.51 24.1r 15RP280 568 C~2nvq 2015 08 13.52517 00 25 41.064 +05 31 09.62 24.1r 15RP280 568 C~2nvq 2015 08 19.57540 00 25 24.089 +05 29 33.19 23.6r 15RP280 568 C~2nvq 2015 08 19.60440 00 25 23.997 +05 29 32.78 23.7r 15RP280 568 C~2nvq 2015 08 20.40889 00 25 21.599 +05 29 18.62 23.9r 15RP280 568 C~2nvq 2015 08 20.45757 00 25 21.453 +05 29 17.69 23.9r 15RP280 568 C~2nvq 2015 09 07.55453 00 24 18.882 +05 23 00.89 24.1w 15RP280 568 C~2nvq 2015 09 09.38065 00 24 11.850 +05 22 17.09 24.2r 15RP280 568 C~2nvq 2015 09 09.42501 00 24 11.670 +05 22 16.09 24.0r 15RP280 568 C~2nvq 2015 09 09.46595 00 24 11.514 +05 22 15.04 23.7r 15RP280 568 C~2nvq 2015 09 10.48959 00 24 07.526 +05 21 50.14 23.8w 15RP280 568 C~2nvq 2015 10 08.33404 00 22 12.712 +05 09 25.00 23.8w 15RP280 568 C~2nvq 2015 10 08.38664 00 22 12.478 +05 09 23.61 23.9w 15RP280 568 C~2nvq 2015 10 09.30372 00 22 08.695 +05 08 58.02 23.8w 15RP280 568 C~2nvq 2015 11 10.42945 00 20 11.890 +04 55 13.96 23.8w 15RP280 568 C~2nvq 2015 12 08.22831 00 19 17.655 +04 47 41.38 24.0w 15RP280 568 C~2nvq 2016 01 01.29102 00 19 20.556 +04 46 18.13 23.9w 15RP280 568 C~2nvq 2016 09 05.49854 00 28 56.646 +05 49 17.74 24.1w 15RP280 568 C~2nvq 2016 09 06.45273 00 28 53.071 +05 48 55.61 24.2w 15RP280 568 C~2nvr 2016 09 06.49401 00 28 52.910 +05 48 54.69 23.9w 15RP280 568 C~2nvr 2016 09 26.45157 00 27 32.590 +05 40 25.68 24.1w 15RP280 568 C~2nvr 2016 09 26.45563 00 27 32.574 +05 40 25.66 24.1w 15RP280 568 C~2nvr 2016 10 30.34461 00 25 17.355 +05 25 08.87 23.7w 15RP280 568 C~2nvr 2016 11 03.29848 00 25 03.845 +05 23 31.79 24.2w 15RP280 568 C~2nvr 2016 11 03.35091 00 25 03.669 +05 23 30.54 24.0w 15RP280 568 C~2nvr 2016 12 24.26796 00 23 42.109 +05 11 38.65 24.6w 15RP280 568 C~2nvr 2017 01 02.25760 00 23 49.335 +05 11 47.30 24.1w 15RP280 568 C~2nvr 2017 01 26.24327 00 24 41.197 +05 15 45.45 23.9w 15RP280 568 C~2nvr 2017 09 15.44018 00 32 51.384 +06 10 57.42 23.6w 15RP280 568 C~2nvr 2017 09 22.50534 00 32 22.632 +06 07 55.30 23.8w 15RP280 568 C~2nvr 2017 11 22.35339 00 28 41.845 +05 42 28.95 24.2w 15RP280 568 C~2nvr 2020 09 21.232180 00 46 02.076 +07 23 48.56 23.7G 15RP280 G37 C~4ADG 2020 09 21.293440 00 46 01.817 +07 23 47.06 15RP280 G37 C~4ADG 2020 09 21.369940 00 46 01.490 +07 23 45.17 15RP280 G37 C~4ADG
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 0.09 0.00 -0.04
2 0.0576 0.00 -0.01 0.00 -0.01
3 0.0712 0.00 0.05 0.00 -0.02
4 0.1394 0.00 0.09 0.00 0.09
5 0.1395 0.00 0.12 0.00 -0.01
6 0.1561 0.00 0.01 0.00 0.05
7 0.1562 0.00 -0.04 0.00 0.14
8 0.1584 0.00 0.00 0.00 -0.02
9 0.1585 0.00 0.07 0.00 -0.10
10 0.2081 0.00 0.00 0.00 0.00
11 0.2131 0.00 -0.12 0.00 -0.05
12 0.2132 0.00 -0.19 0.00 0.03
13 0.2133 0.00 -0.10 0.00 -0.03
14 0.2161 0.00 -0.00 0.00 -0.01
15 0.2923 0.00 0.17 0.00 -0.05
16 0.2925 0.00 -0.01 0.00 0.02
17 0.2950 0.00 0.02 0.00 -0.07
18 0.3830 0.00 -0.00 0.00 -0.05
19 0.4591 0.00 0.04 0.00 0.01
20 0.5249 0.00 -0.06 0.00 0.07
21 1.2045 0.00 -0.04 0.00 0.08
22 1.2071 0.00 0.02 0.00 -0.00
23 1.2072 0.00 -0.01 0.00 0.03
24 1.2619 0.00 0.02 0.00 -0.09
25 1.2619 0.00 0.04 0.00 0.00
26 1.3547 0.00 0.06 0.00 0.00
27 1.3655 0.00 0.01 0.00 0.00
28 1.3656 0.00 0.04 0.00 0.01
29 1.5050 0.00 -0.03 0.00 0.12
30 1.5296 0.00 0.06 0.00 0.09
31 1.5953 0.00 0.05 0.00 -0.06
32 2.2310 0.00 0.02 0.00 0.06
33 2.2504 0.00 -0.06 0.00 -0.06
34 2.4170 0.00 -0.07 0.00 0.01
35 5.2476 0.00 0.14 0.00 -0.06
36 5.2477 0.00 0.03 0.00 -0.01
37 5.2480 0.00 -0.15 0.00 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.
15RP280 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.703 45.703 45.703 ecceobj 0.094 0.094 0.094 incobj 3.474 3.474 3.474 qmin 40.512 40.468 40.536 qmax 50.715 50.695 50.650 amean 45.484 45.485 45.475 amin 45.109 45.099 45.104 amax 45.886 45.895 45.884 emean 0.091 0.091 0.091 emin 0.077 0.078 0.077 emax 0.105 0.105 0.105 imean 4.986 4.954 4.983 imin 4.457 4.429 4.453 imax 5.449 5.388 5.450 excite_mean 0.126 0.126 0.126 fracstop 1.000 1.000 1.000 cjmean 3.100 3.100 3.100 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 174.6 175.3 174.6 kozaiamp 180.0 180.0 180.0