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: 14UB228
# Created Mon Apr 28 01:10:10 2025
# Orbit generated from Bernstein formalism
# Fitting 41 observations of 41
# Arc: 4.06y
# First observation: 2013/08/08
# Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
-0.000019 0.031112 0.000008 0.003538 0.026707 0.000000
# Chi-squared of fit: 10.74 DOF: 76 RMS: 0.09
# Min/Max residuals: -0.37 0.30
# Exact a, adot, b, bdot, g, gdot:
1.707684E-05 3.079068E-02 2.006717E-06 3.515689E-03 2.642876E-02 5.710838E-04
# Covariance matrix:
1.2297E-13 -2.6900E-14 -2.0342E-15 4.4592E-16 7.2667E-14 1.1734E-14
-2.6900E-14 1.7163E-13 -9.6089E-15 1.8177E-14 1.0232E-13 1.4239E-12
-2.0342E-15 -9.6089E-15 6.8556E-14 -3.6077E-14 -9.0979E-15 -9.9728E-14
4.4592E-16 1.8177E-14 -3.6077E-14 3.9500E-14 1.3062E-14 1.9312E-13
7.2667E-14 1.0232E-13 -9.0979E-15 1.3062E-14 1.5907E-13 9.9497E-13
1.1734E-14 1.4239E-12 -9.9728E-14 1.9312E-13 9.9497E-13 1.5159E-11
# lat0 lon0 xBary yBary zBary JD0
3.462083 26.015244 0.955433 0.020860 -0.344231 2456513.043958
# Heliocentric elements and errors
Epoch: 2456510.5000 = 2013/08/06
Mean Anomaly: 359.09567 +/- 0.014
Argument of Peri: 29.42601 +/- 0.029
Long of Asc Node: 357.25720 +/- 0.001
Inclination: 7.43831 +/- 0.000
Eccentricity: 0.33246569 +/- 0.0000
Semi-Major Axis: 57.20973307 +/- 0.0047
Time of Perihelion: 2456907.5325 +/- 6.0
Perihelion: 38.18945983 +/- 0.0041
Aphelion: 76.23000632 +/- 0.0068
Period (y) 432.7261 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 34.67031897 +/- 0.0005
Ecliptic Y 15.86137605 +/- 0.0002
Ecliptic Z 2.28504829 +/- 0.0000
Ecliptic XDOT -0.00137196 +/- 0.0000
Ecliptic YDOT 0.00288190 +/- 0.0000
Ecliptic ZDOT 0.00036725 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 38.19470793 +/- 0.0005
Geocenter to KBO 37.83757335 +/- 0.0006
# Hcoef: 7.86
The following table shows the complete astrometric record for 14UB228. 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 (14UB228) followed by the observatory code and reference code for the source of the astrometry.
2013 08 08.54318 01 31 19.579 +13 16 15.28 14UB228 568 C~2SDe 2013 08 08.54782 01 31 19.537 +13 16 14.88 20.6r 14UB228 568 C~2SDe 2013 08 08.59158 01 31 19.505 +13 16 15.32 21.1r 14UB228 568 C~2SDe 2013 09 01.51793 01 30 26.824 +13 14 04.89 23.9r 14UB228 568 C~2SDe 2013 09 01.55676 01 30 26.691 +13 14 04.52 23.8r 14UB228 568 C~2SDe 2013 09 02.49944 01 30 23.654 +13 13 53.07 23.8r 14UB228 568 C~2SDe 2013 09 02.55084 01 30 23.483 +13 13 52.49 23.7r 14UB228 568 C~2SDe 2013 09 29.51904 01 28 33.264 +13 05 40.12 23.9r 14UB228 568 C~2SDe 2013 10 03.49553 01 28 14.231 +13 04 05.34 23.6r 14UB228 568 C~2SDe 2013 10 04.59224 01 28 08.895 +13 03 38.57 23.5r 14UB228 568 C~2SDe 2013 10 09.39306 01 27 45.305 +13 01 37.53 23.9r 14UB228 568 C~2SDe 2013 10 29.45663 01 26 05.579 +12 52 36.23 23.5r 14UB228 568 C~2SDe 2013 10 30.36893 01 26 01.156 +12 52 10.90 23.5r 14UB228 568 C~2SDe 2013 10 31.35976 01 25 56.371 +12 51 43.84 24.0r 14UB228 568 C~2SDe 2013 11 01.30558 01 25 51.840 +12 51 17.71 23.6r 14UB228 568 C~2SDe 2013 11 01.34467 01 25 51.649 +12 51 16.70 23.9r 14UB228 568 C~2SDe 2013 11 01.43401 01 25 51.210 +12 51 14.33 23.9r 14UB228 568 C~2SDe 2013 12 04.34299 01 23 40.957 +12 37 53.82 23.6r 14UB228 568 C~2SDe 2013 12 29.29176 01 22 58.222 +12 32 19.27 23.9r 14UB228 568 C~2SDe 2014 08 24.44224 01 37 20.611 +14 05 35.26 23.8r 14UB228 568 C~2SDe 2014 08 24.51617 01 37 20.419 +14 05 34.95 23.8r 14UB228 568 C~2SDe 2014 08 30.42052 01 37 04.767 +14 04 49.04 23.8r 14UB228 568 C~2SDe 2014 08 30.52883 01 37 04.443 +14 04 48.10 24.0r 14UB228 568 C~2SDe 2014 09 18.44742 01 35 56.755 +14 00 23.82 23.7r 14UB228 568 C~2SDe 2014 09 18.49018 01 35 56.573 +14 00 23.05 23.7r 14UB228 568 C~2SDe 2014 09 23.48837 01 35 35.012 +13 58 46.86 23.8r 14UB228 568 C~2SDe 2014 10 22.26990 01 33 15.126 +13 47 08.06 23.7r 14UB228 568 C~2SDe 2014 10 22.31521 01 33 14.894 +13 47 06.81 23.7r 14UB228 568 C~2SDe 2014 10 22.36003 01 33 14.662 +13 47 05.71 23.7r 14UB228 568 C~2SDe 2014 10 23.45117 01 33 09.167 +13 46 36.03 23.7r 14UB228 568 C~2SDe 2014 10 25.46714 01 32 59.067 +13 45 41.45 23.5r 14UB228 568 C~2SDe 2014 11 19.22297 01 31 04.282 +13 34 41.68 24.0r 14UB228 568 C~2SDe 2014 11 19.35606 01 31 03.736 +13 34 38.44 24.1r 14UB228 568 C~2SDe 2014 11 21.36935 01 30 55.616 +13 33 48.65 23.4r 14UB228 568 C~2SDe 2015 01 28.23984 01 29 48.196 +13 23 10.33 24.0r 14UB228 568 C~2SDe 2015 02 18.26427 01 30 59.533 +13 28 40.76 24.0r 14UB228 568 C~2SDe 2015 12 07.43260 01 36 32.252 +14 18 19.82 23.9w 14UB228 568 C~2SDe 2016 01 03.25961 01 35 46.240 +14 12 10.20 24.0r 14UB228 568 C~2SDe 2016 01 03.32552 01 35 46.204 +14 12 09.76 24.0r 14UB228 568 C~2SDe 2017 08 25.55831 01 57 00.286 +16 31 18.44 24.1w 14UB228 568 C~2SDe 2017 08 30.58085 01 56 48.639 +16 30 57.59 24.0w 14UB228 568 C~2SDe
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 0.28 0.00 0.02
2 0.0000 -0.72 -0.37 -0.15 -0.16
3 0.0001 -0.99 0.07 0.43 0.08
4 0.0656 -764.24 0.06 161.96 -0.05
5 0.0657 -766.18 0.02 162.33 0.06
6 0.0683 -811.63 -0.03 168.01 0.00
7 0.0685 -814.16 0.01 168.39 0.04
8 0.1423 -2492.21 -0.11 304.81 -0.12
9 0.1532 -2785.67 -0.07 319.65 -0.10
10 0.1562 -2868.03 -0.04 323.65 0.05
11 0.1693 -3233.14 0.07 338.90 0.06
12 0.2243 -4788.34 0.30 377.68 0.11
13 0.2268 -4857.84 0.07 378.24 -0.08
14 0.2295 -4932.90 0.00 379.16 0.10
15 0.2321 -5004.16 -0.09 379.58 -0.08
16 0.2322 -5007.13 -0.08 379.68 -0.02
17 0.2324 -5013.98 -0.10 379.87 0.07
18 0.3225 -7082.52 -0.06 348.58 -0.04
19 0.3908 -7788.82 0.08 272.66 -0.02
20 1.0428 5980.31 0.10 839.18 -0.09
21 1.0430 5977.59 0.03 839.90 0.08
22 1.0592 5748.49 -0.02 879.45 0.00
23 1.0595 5743.75 -0.03 880.28 0.06
24 1.1113 4729.29 -0.01 990.80 -0.04
25 1.1114 4726.54 0.01 991.04 -0.04
26 1.1251 4399.05 0.01 1015.33 -0.06
27 1.2039 2246.86 -0.00 1106.63 -0.00
28 1.2040 2243.26 -0.03 1106.70 -0.03
29 1.2042 2239.71 -0.03 1106.91 0.08
30 1.2071 2154.34 -0.12 1108.54 -0.06
31 1.2127 1997.40 -0.02 1111.54 0.09
32 1.2804 198.92 0.02 1111.03 0.06
33 1.2808 190.32 0.18 1110.94 0.06
34 1.2863 61.91 -0.09 1108.16 0.03
35 1.4721 -1087.51 -0.12 876.78 0.13
36 1.5297 1.85 0.09 800.82 -0.14
37 2.3296 5601.19 0.03 1806.78 -0.01
38 2.4031 4843.23 0.02 1704.76 -0.06
39 2.4032 4842.58 -0.04 1704.54 -0.01
40 4.0466 25153.03 -0.03 3046.23 -0.01
41 4.0603 24986.03 0.02 3083.78 0.01
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.
14UB228 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 57.662 57.676 57.648 ecceobj 0.338 0.338 0.337 incobj 7.419 7.419 7.419 qmin 37.512 37.480 37.577 qmax 77.498 77.447 77.334 amean 56.932 56.931 56.932 amin 56.257 56.194 56.238 amax 57.778 57.763 57.768 emean 0.329 0.329 0.328 emin 0.319 0.319 0.318 emax 0.341 0.341 0.339 imean 7.932 7.883 8.019 imin 7.765 7.513 7.847 imax 8.149 8.210 8.252 excite_mean 0.357 0.357 0.357 fracstop 1.000 1.000 1.000 cjmean 3.101 3.101 3.101 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 168.0 167.6 174.9 kozaiamp 180.0 180.0 179.9