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: 15RT245
# Created Wed Dec 25 02:10:23 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 81 observations of 81
# Arc: 7.03y
# First observation: 2013/09/11
# Last observation: 2020/09/21
# Chi-squared of fit: 19.61 DOF: 156 RMS: 0.09
# Min/Max residuals: -0.19 0.35
# Exact a, adot, b, bdot, g, gdot:
1.479762E-05 2.448345E-02 8.510576E-08 3.437368E-04 2.451291E-02 1.628313E-03
# Covariance matrix:
1.3123E-13 -5.9167E-14 7.0809E-16 -5.5695E-16 1.3123E-14 -2.7168E-13
-5.9167E-14 4.4845E-14 -6.2623E-16 5.5344E-16 1.7465E-14 2.6710E-13
7.0809E-16 -6.2623E-16 7.8642E-14 -2.2448E-14 -1.4741E-16 -4.5990E-15
-5.5695E-16 5.5344E-16 -2.2448E-14 8.3760E-15 2.6560E-16 4.0524E-15
1.3123E-14 1.7465E-14 -1.4741E-16 2.6560E-16 6.8733E-14 1.2250E-13
-2.7168E-13 2.6710E-13 -4.5990E-15 4.0524E-15 1.2250E-13 1.9562E-12
# lat0 lon0 xBary yBary zBary JD0
0.526676 3.209789 0.257960 0.009050 -0.973876 2456546.774958
# Heliocentric elements and errors
Epoch: 2456546.5000 = 2013/09/11
Mean Anomaly: 40.92637 +/- 0.023
Argument of Peri: 344.67329 +/- 0.030
Long of Asc Node: 330.52018 +/- 0.008
Inclination: 0.96147 +/- 0.000
Eccentricity: 0.08300116 +/- 0.0001
Semi-Major Axis: 44.40986965 +/- 0.0020
Time of Perihelion: 2444257.4468 +/- 7.0
Perihelion: 40.72379889 +/- 0.0030
Aphelion: 48.09594042 +/- 0.0032
Period (y) 295.9562 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 41.71561217 +/- 0.0004
Ecliptic Y 2.08413882 +/- 0.0000
Ecliptic Z 0.37497364 +/- 0.0000
Ecliptic XDOT 0.00002193 +/- 0.0000
Ecliptic YDOT 0.00273926 +/- 0.0000
Ecliptic ZDOT 0.00004020 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.76928801 +/- 0.0004
Geocenter to KBO 40.79482037 +/- 0.0004
# Hcoef: 6.59
The following table shows the complete astrometric record for 15RT245. 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 (15RT245) followed by the observatory code and reference code for the source of the astrometry.
2013 09 11.27418 00 10 56.662 +01 45 34.36 23.6g 15RT245 W84 C~4yYK 2013 10 12.12193 00 08 40.808 +01 30 58.07 22.5i 15RT245 W84 C~4yYK 2013 10 12.12613 00 08 40.788 +01 30 57.84 22.2z 15RT245 W84 C~4yYK 2013 10 13.09058 00 08 36.713 +01 30 31.33 21.8z 15RT245 W84 C~4yYK 2013 10 13.11626 00 08 36.604 +01 30 30.68 22.5i 15RT245 W84 C~4yYK 2013 10 28.06092 00 07 37.630 +01 24 05.10 22.9r 15RT245 W84 C~4yYK 2013 10 28.06231 00 07 37.624 +01 24 04.91 22.5i 15RT245 W84 C~4yYK 2013 11 22.12208 00 06 26.473 +01 16 12.71 22.7z 15RT245 W84 C~4yYK 2013 11 23.08993 00 06 24.631 +01 16 00.17 22.9r 15RT245 W84 C~4yYK 2013 11 23.09132 00 06 24.633 +01 16 00.00 22.7i 15RT245 W84 C~4yYK 2014 11 13.09178 00 11 52.179 +01 52 49.88 22.7z 15RT245 W84 C~4yYK 2015 06 23.57027 00 23 38.936 +03 09 10.33 22.3r 15RT245 568 C~2Gdr 2015 07 14.58775 00 23 46.573 +03 10 22.10 23.1r 15RT245 568 C~2Gdr 2015 07 19.56683 00 23 42.860 +03 10 03.34 23.2r 15RT245 568 C~2Gdr 2015 08 11.46704 00 23 00.440 +03 05 51.56 22.9r 15RT245 568 C~2Gdr 2015 08 11.51159 00 23 00.315 +03 05 50.85 22.4r 15RT245 568 C~2Gdr 2015 09 08.37633 00 21 23.022 +02 55 42.29 22.9r 15RT245 568 C~2Gdr 2015 09 08.48053 00 21 22.585 +02 55 39.56 22.8r 15RT245 568 C~2Gdr 2015 09 08.52274 00 21 22.408 +02 55 38.43 22.9r 15RT245 568 C~2Gdr 2015 09 09.49961 00 21 18.356 +02 55 12.71 23.2w 15RT245 568 C~2Gdr 2015 09 10.44054 00 21 14.432 +02 54 47.78 22.4w 15RT245 568 C~2Gdr 2015 09 16.42148 00 20 48.886 +02 52 05.40 23.1w 15RT245 568 C~2Gdr 2015 10 03.33607 00 19 33.849 +02 44 04.67 22.1r 15RT245 568 C~2Gdr 2015 10 03.34821 00 19 33.795 +02 44 04.26 23.0w 15RT245 568 C~2Gdr 2015 10 03.40228 00 19 33.548 +02 44 02.69 22.5w 15RT245 568 C~2Gdr 2015 10 07.28650 00 19 16.334 +02 42 11.63 22.8r 15RT245 568 C~2Gdr 2015 10 07.31809 00 19 16.186 +02 42 10.78 22.8r 15RT245 568 C~2Gdr 2015 10 07.37159 00 19 15.946 +02 42 09.24 22.0r 15RT245 568 C~2Gdr 2015 11 05.24319 00 17 20.830 +02 29 39.24 22.6w 15RT245 568 C~2Gdr 2015 11 07.07312 00 17 14.788 +02 28 59.77 23.1r 15RT245 W84 C~4yYK 2015 11 07.07451 00 17 14.778 +02 28 59.93 23.1i 15RT245 W84 C~4yYK 2015 11 07.21299 00 17 14.340 +02 28 56.56 22.2w 15RT245 568 C~2Gdr 2015 11 07.26547 00 17 14.164 +02 28 55.46 22.4w 15RT245 568 C~2Gdr 2015 11 08.31016 00 17 10.814 +02 28 33.55 23.1w 15RT245 568 C~2Gdr 2015 11 08.37107 00 17 10.629 +02 28 32.10 23.4w 15RT245 568 C~2Gdr 2015 11 10.33048 00 17 04.542 +02 27 51.91 22.8w 15RT245 568 C~2Gdr 2015 11 10.34252 00 17 04.506 +02 27 51.69 22.5w 15RT245 568 C~2Gdr 2015 12 07.28927 00 16 09.609 +02 21 40.81 21.8w 15RT245 568 C~2Gdr 2016 01 01.21869 00 16 14.402 +02 21 54.37 22.8w 15RT245 568 C~2Gdr 2016 09 05.54890 00 26 35.982 +03 30 33.47 15RT245 568 C~2Gdr 2016 09 05.55294 00 26 35.962 +03 30 33.39 15RT245 568 C~2Gdr 2016 09 07.48826 00 26 28.143 +03 29 44.14 15RT245 568 C~2Gdr 2016 09 07.49232 00 26 28.142 +03 29 43.99 15RT245 568 C~2Gdr 2016 09 07.53459 00 26 27.955 +03 29 42.98 15RT245 568 C~2Gdr 2016 09 07.53863 00 26 27.934 +03 29 42.84 15RT245 568 C~2Gdr 2016 09 10.267488 00 26 16.69 +03 28 32.0 22.5i 15RT245 W84 C~352k 2016 09 10.26801 00 26 16.690 +03 28 31.98 22.5i 15RT245 W84 C~4yYK 2016 09 10.32270 00 26 16.464 +03 28 30.67 23.2r 15RT245 W84 C~4yYK 2016 09 10.32409 00 26 16.447 +03 28 30.61 24.1g 15RT245 W84 C~4yYK 2016 09 26.56094 00 25 05.822 +03 21 01.21 23.3w 15RT245 568 C~2Gdr 2016 09 26.57548 00 25 05.750 +03 21 00.83 23.2w 15RT245 568 C~2Gdr 2016 11 03.22971 00 22 28.757 +03 04 05.37 15RT245 568 C~2Gdr 2016 11 18.10756 00 21 43.488 +02 59 06.51 22.6i 15RT245 W84 C~4yYK 2016 11 18.10895 00 21 43.488 +02 59 06.43 22.8r 15RT245 W84 C~4yYK 2016 11 30.09555 00 21 18.472 +02 56 17.68 23.1r 15RT245 W84 C~4yYK 2016 11 30.09692 00 21 18.469 +02 56 17.50 22.7i 15RT245 W84 C~4yYK 2016 11 30.09830 00 21 18.482 +02 56 18.01 23.5g 15RT245 W84 C~4yYK 2016 12 04.085660 00 21 12.73 +02 55 37.8 22.5z 15RT245 W84 C~352k 2016 12 04.08619 00 21 12.736 +02 55 37.80 22.6z 15RT245 W84 C~4yYK 2016 12 24.23886 00 21 05.243 +02 54 34.82 23.3w 15RT245 568 C~2Gdr 2016 12 24.25172 00 21 05.254 +02 54 34.90 23.3w 15RT245 568 C~2Gdr 2017 01 02.23941 00 21 13.839 +02 55 23.69 23.4w 15RT245 568 C~2Gdr 2017 01 26.22433 00 22 11.532 +03 01 19.98 23.2w 15RT245 568 C~2Gdr 2017 01 27.25017 00 22 15.043 +03 01 42.07 23.1w 15RT245 568 C~2Gdr 2017 01 27.25763 00 22 15.074 +03 01 42.21 23.1w 15RT245 568 C~2Gdr 2017 01 28.24596 00 22 18.538 +03 02 04.04 23.2w 15RT245 568 C~2Gdr 2017 01 28.25342 00 22 18.554 +03 02 04.19 23.3w 15RT245 568 C~2Gdr 2017 08 22.31770 00 32 32.136 +04 09 43.11 22.7i 15RT245 W84 C~4yYK 2017 08 22.318542 00 32 32.15 +04 09 43.2 22.9r 15RT245 W84 C~352k 2017 08 22.31907 00 32 32.148 +04 09 43.16 22.8r 15RT245 W84 C~4yYK 2017 10 22.167280 00 28 19.42 +03 43 01.3 22.9r 15RT245 W84 C~352k 2017 10 22.16780 00 28 19.424 +03 43 01.29 23.0r 15RT245 W84 C~4yYK 2017 10 22.168646 00 28 19.42 +03 43 01.5 23.7g 15RT245 W84 C~352k 2017 10 22.16918 00 28 19.415 +03 43 01.39 23.4g 15RT245 W84 C~4yYK 2017 10 29.135671 00 27 51.71 +03 40 01.4 22.6z 15RT245 W84 C~352k 2017 10 29.13620 00 27 51.710 +03 40 01.39 22.5z 15RT245 W84 C~4yYK 2019 10 26.112210 00 38 12.227 +04 48 36.09 22.9G 15RT245 G37 C~3ctf 2019 10 26.180800 00 38 11.950 +04 48 34.27 15RT245 G37 C~3ctf 2019 10 26.297610 00 38 11.465 +04 48 31.28 15RT245 G37 C~3ctf 2020 09 21.290000 00 45 44.905 +05 37 33.17 22.9G 15RT245 G37 C~4AD9 2020 09 21.366330 00 45 44.556 +05 37 31.18 15RT245 G37 C~4AD9
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 0.18 0.00 0.11
2 0.0845 0.00 -0.03 0.00 0.06
3 0.0845 0.00 -0.06 0.00 -0.05
4 0.0871 0.00 0.01 0.00 0.00
5 0.0872 0.00 0.03 0.00 0.06
6 0.1281 0.00 0.03 0.00 0.06
7 0.1281 0.00 0.02 0.00 -0.10
8 0.1967 0.00 -0.04 0.00 0.12
9 0.1994 0.00 -0.10 0.00 0.05
10 0.1994 0.00 -0.03 0.00 -0.10
11 1.1713 0.00 -0.00 0.00 0.07
12 1.7804 0.00 0.05 0.00 -0.09
13 1.8380 0.00 0.02 0.00 -0.01
14 1.8516 0.00 -0.03 0.00 -0.03
15 1.9143 0.00 -0.07 0.00 -0.08
16 1.9144 0.00 -0.09 0.00 -0.06
17 1.9907 0.00 -0.05 0.00 0.04
18 1.9910 0.00 -0.03 0.00 0.03
19 1.9911 0.00 -0.02 0.00 0.01
20 1.9938 0.00 -0.05 0.00 -0.04
21 1.9963 0.00 -0.03 0.00 -0.04
22 2.0127 0.00 0.06 0.00 0.03
23 2.0590 0.00 -0.01 0.00 0.03
24 2.0591 0.00 0.00 0.00 -0.03
25 2.0592 0.00 -0.02 0.00 -0.05
26 2.0698 0.00 0.13 0.00 -0.01
27 2.0699 0.00 0.03 0.00 0.04
28 2.0701 0.00 0.04 0.00 0.02
29 2.1491 0.00 0.17 0.00 -0.13
30 2.1541 0.00 0.11 0.00 -0.02
31 2.1541 0.00 0.03 0.00 0.17
32 2.1545 0.00 0.07 0.00 -0.06
33 2.1547 0.00 0.03 0.00 -0.04
34 2.1575 0.00 -0.04 0.00 0.10
35 2.1577 0.00 0.15 0.00 -0.08
36 2.1631 0.00 -0.07 0.00 -0.10
37 2.1631 0.00 -0.05 0.00 -0.08
38 2.2369 0.00 0.01 0.00 -0.09
39 2.3051 0.00 0.03 0.00 -0.09
40 2.9850 0.00 -0.03 0.00 -0.02
41 2.9850 0.00 -0.09 0.00 0.00
42 2.9903 0.00 -0.12 0.00 0.03
43 2.9903 0.00 0.12 0.00 -0.02
44 2.9904 0.00 -0.04 0.00 0.06
45 2.9905 0.00 -0.11 0.00 0.02
46 2.9979 0.00 -0.02 0.00 0.03
47 2.9979 0.00 0.01 0.00 0.02
48 2.9981 0.00 0.10 0.00 0.15
49 2.9981 0.00 -0.07 0.00 0.13
50 3.0425 0.00 -0.02 0.00 -0.11
51 3.0426 0.00 -0.11 0.00 -0.08
52 3.1457 0.00 0.04 0.00 0.02
53 3.1864 0.00 0.03 0.00 0.06
54 3.1864 0.00 0.08 0.00 0.00
55 3.2192 0.00 0.00 0.00 -0.01
56 3.2192 0.00 -0.01 0.00 -0.18
57 3.2192 0.00 0.22 0.00 0.35
58 3.2301 0.00 -0.14 0.00 -0.19
59 3.2301 0.00 -0.04 0.00 -0.19
60 3.2853 0.00 -0.11 0.00 -0.06
61 3.2854 0.00 -0.03 0.00 -0.01
62 3.3100 0.00 -0.01 0.00 -0.00
63 3.3756 0.00 0.04 0.00 0.00
64 3.3784 0.00 -0.05 0.00 -0.01
65 3.3785 0.00 0.03 0.00 -0.03
66 3.3812 0.00 0.01 0.00 0.01
67 3.3812 0.00 -0.15 0.00 -0.00
68 3.9454 0.00 -0.10 0.00 -0.00
69 3.9454 0.00 0.16 0.00 0.10
70 3.9454 0.00 0.15 0.00 0.07
71 4.1120 0.00 0.02 0.00 0.05
72 4.1120 0.00 0.11 0.00 0.06
73 4.1120 0.00 0.11 0.00 0.29
74 4.1120 0.00 0.07 0.00 0.19
75 4.1310 0.00 0.08 0.00 0.01
76 4.1310 0.00 0.11 0.00 0.01
77 6.1214 0.00 -0.12 0.00 -0.14
78 6.1216 0.00 -0.01 0.00 -0.16
79 6.1219 0.00 -0.00 0.00 -0.09
80 7.0281 0.00 0.09 0.00 0.04
81 7.0283 0.00 -0.12 0.00 0.10
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.
15RT245 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.674 44.674 44.674 ecceobj 0.088 0.088 0.088 incobj 0.958 0.958 0.958 qmin 40.008 40.013 40.003 qmax 49.132 49.125 49.139 amean 44.444 44.444 44.444 amin 44.088 44.086 44.090 amax 44.832 44.832 44.830 emean 0.081 0.081 0.081 emin 0.066 0.066 0.066 emax 0.097 0.096 0.097 imean 2.452 2.452 2.452 imin 1.770 1.770 1.770 imax 3.000 3.000 3.000 excite_mean 0.092 0.092 0.092 fracstop 1.000 1.000 1.000 cjmean 3.096 3.096 3.096 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 181.2 181.2 181.2 kozaiamp 180.0 179.9 180.0