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: 14UT228
# Created Sun Apr 27 01:10:11 2025
# Orbit generated from Bernstein formalism
# Fitting 47 observations of 47
# Arc: 4.04y
# First observation: 2013/08/09
# Last observation: 2017/08/25
Preliminary a, adot, b, bdot, g, gdot:
-0.000072 0.021444 0.000003 -0.000258 0.022188 0.000000
# Chi-squared of fit: 9.20 DOF: 88 RMS: 0.08
# Min/Max residuals: -0.22 0.23
# Exact a, adot, b, bdot, g, gdot:
1.497704E-05 2.130563E-02 -1.497163E-07 -2.582699E-04 2.217115E-02 1.903137E-03
# Covariance matrix:
2.0340E-13 -8.0455E-14 -9.1046E-16 -6.8043E-16 8.0438E-14 -3.8589E-13
-8.0455E-14 1.2070E-13 1.0513E-16 -3.9850E-16 2.8629E-14 1.6180E-12
-9.1046E-16 1.0513E-16 8.9460E-14 -4.7809E-14 -7.5397E-16 -1.6207E-16
-6.8043E-16 -3.9850E-16 -4.7809E-14 3.9051E-14 -9.0441E-16 -1.0067E-14
8.0438E-14 2.8629E-14 -7.5397E-16 -9.0441E-16 9.3708E-14 8.0484E-13
-3.8589E-13 1.6180E-12 -1.6207E-16 -1.0067E-14 8.0484E-13 3.2735E-11
# lat0 lon0 xBary yBary zBary JD0
3.405876 29.131659 0.967722 0.018338 -0.307572 2456514.016098
# Heliocentric elements and errors
Epoch: 2456510.5000 = 2013/08/06
Mean Anomaly: 38.25080 +/- 0.082
Argument of Peri: 54.28537 +/- 0.110
Long of Asc Node: 287.71069 +/- 0.009
Inclination: 3.43617 +/- 0.000
Eccentricity: 0.09765219 +/- 0.0002
Semi-Major Axis: 48.97654584 +/- 0.0041
Time of Perihelion: 2443208.4479 +/- 28.4
Perihelion: 44.19387868 +/- 0.0115
Aphelion: 53.75921301 +/- 0.0118
Period (y) 342.7602 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 40.06842996 +/- 0.0005
Ecliptic Y 21.22627718 +/- 0.0003
Ecliptic Z 2.67958403 +/- 0.0000
Ecliptic XDOT -0.00108045 +/- 0.0000
Ecliptic YDOT 0.00241240 +/- 0.0000
Ecliptic ZDOT -0.00001773 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.42261653 +/- 0.0005
Geocenter to KBO 45.10365596 +/- 0.0006
# Hcoef: 7.23
The following table shows the complete astrometric record for 14UT228. 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 (14UT228) followed by the observatory code and reference code for the source of the astrometry.
2013 08 09.51532 01 43 21.001 +14 20 52.55 23.2r 14UT228 568 C~2SDh 2013 08 09.55803 01 43 20.953 +14 20 52.52 23.5r 14UT228 568 C~2SDh 2013 09 03.45211 01 42 34.924 +14 18 17.55 23.0r 14UT228 568 C~2SDh 2013 09 03.49870 01 42 34.789 +14 18 17.00 23.5r 14UT228 568 C~2SDh 2013 10 08.51317 01 40 27.955 +14 07 47.39 23.5r 14UT228 568 C~2SDh 2013 11 29.25439 01 37 00.523 +13 47 05.18 23.8r 14UT228 568 C~2SDh 2013 12 04.40215 01 36 45.446 +13 45 20.72 24.1r 14UT228 568 C~2SDh 2013 12 05.29413 01 36 43.044 +13 45 03.56 24.0r 14UT228 568 C~2SDh 2013 12 30.37416 01 35 59.025 +13 39 00.88 23.9r 14UT228 568 C~2SDh 2014 01 02.24937 01 35 57.268 +13 38 36.20 24.0r 14UT228 568 C~2SDh 2014 01 02.29641 01 35 57.237 +13 38 35.72 23.8r 14UT228 568 C~2SDh 2014 01 02.30286 01 35 57.242 +13 38 35.89 24.0r 14UT228 568 C~2SDh 2014 01 03.21937 01 35 56.829 +13 38 28.97 24.0r 14UT228 568 C~2SDh 2014 01 03.26180 01 35 56.809 +13 38 28.63 23.8r 14UT228 568 C~2SDh 2014 01 03.33071 01 35 56.778 +13 38 28.35 24.4r 14UT228 568 C~2SDh 2014 01 03.33665 01 35 56.795 +13 38 28.12 23.8r 14UT228 568 C~2SDh 2014 07 26.52975 01 48 07.705 +14 45 17.74 23.9r 14UT228 568 C~2SDh 2014 07 26.57298 01 48 07.722 +14 45 17.96 23.9r 14UT228 568 C~2SDh 2014 08 24.54028 01 47 44.294 +14 45 18.23 23.9r 14UT228 568 C~2SDh 2014 08 30.44562 01 47 31.529 +14 44 31.13 23.7r 14UT228 568 C~2SDh 2014 08 30.55222 01 47 31.264 +14 44 29.96 23.8r 14UT228 568 C~2SDh 2014 09 23.51179 01 46 16.697 +14 38 52.04 23.8r 14UT228 568 C~2SDh 2014 10 22.29484 01 44 17.012 +14 28 18.94 23.9r 14UT228 568 C~2SDh 2014 10 22.33958 01 44 16.814 +14 28 17.88 23.7r 14UT228 568 C~2SDh 2014 10 22.38432 01 44 16.610 +14 28 16.81 23.6r 14UT228 568 C~2SDh 2014 10 23.48145 01 44 11.824 +14 27 49.72 23.7r 14UT228 568 C~2SDh 2014 10 25.49739 01 44 03.033 +14 27 00.21 24.0r 14UT228 568 C~2SDh 2014 11 20.22868 01 42 17.804 +14 16 31.25 23.8r 14UT228 568 C~2SDh 2014 11 20.36911 01 42 17.278 +14 16 28.01 23.7r 14UT228 568 C~2SDh 2014 11 21.26474 01 42 14.038 +14 16 07.16 23.8r 14UT228 568 C~2SDh 2014 11 21.27445 01 42 14.010 +14 16 06.99 24.2r 14UT228 568 C~2SDh 2014 11 21.42970 01 42 13.435 +14 16 03.62 24.1r 14UT228 568 C~2SDh 2015 01 28.27933 01 40 53.239 +14 03 30.98 23.5r 14UT228 568 C~2SDh 2015 02 19.25614 01 41 49.515 +14 07 03.18 23.5r 14UT228 568 C~2SDh 2015 10 09.40973 01 50 01.198 +14 58 51.35 23.9w 14UT228 568 C~2SDh 2015 10 09.42762 01 50 01.121 +14 58 50.97 24.0w 14UT228 568 C~2SDh 2015 10 09.45291 01 50 01.012 +14 58 50.40 23.9w 14UT228 568 C~2SDh 2015 10 09.47042 01 50 00.934 +14 58 50.07 24.1w 14UT228 568 C~2SDh 2015 10 09.51628 01 50 00.742 +14 58 49.03 24.0w 14UT228 568 C~2SDh 2015 10 13.35876 01 49 44.363 +14 57 22.81 14UT228 568 C~2SDh 2015 10 13.42514 01 49 44.072 +14 57 21.29 14UT228 568 C~2SDh 2015 10 14.47894 01 49 39.525 +14 56 57.03 23.6r 14UT228 568 C~2SDh 2015 10 14.54658 01 49 39.225 +14 56 55.62 14UT228 568 C~2SDh 2015 12 06.27161 01 46 11.767 +14 36 25.44 23.3r 14UT228 568 C~2SDh 2015 12 07.40784 01 46 08.566 +14 36 03.51 24.1w 14UT228 568 C~2SDh 2016 09 27.46659 01 55 33.771 +15 27 30.10 24.0w 14UT228 568 C~2SDh 2017 08 25.57304 02 01 56.389 +15 58 28.00 24.0w 14UT228 568 C~2SDh
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 0.05 0.00 -0.01
2 0.0001 -0.66 -0.05 0.22 0.01
3 0.0683 -680.66 0.01 95.77 -0.06
4 0.0684 -682.69 -0.06 95.96 -0.04
5 0.1643 -2630.04 0.10 173.50 -0.03
6 0.3059 -5896.08 0.12 112.97 0.05
7 0.3200 -6138.91 -0.22 95.89 -0.07
8 0.3225 -6177.79 0.10 92.69 -0.12
9 0.3911 -6908.21 0.13 -10.44 0.16
10 0.3990 -6941.11 -0.01 -24.04 -0.11
11 0.3991 -6941.71 -0.12 -24.33 -0.19
12 0.3991 -6941.58 0.08 -24.19 -0.03
13 0.4017 -6949.72 -0.10 -28.43 0.04
14 0.4018 -6950.12 -0.10 -28.64 0.02
15 0.4020 -6950.64 -0.01 -28.74 0.23
16 0.4020 -6950.49 0.19 -29.04 -0.05
17 0.9610 4412.14 0.02 -113.70 0.04
18 0.9611 4412.45 0.03 -113.58 -0.05
19 1.0405 4094.58 -0.06 6.98 0.02
20 1.0566 3904.66 -0.01 28.53 0.09
21 1.0569 3900.65 -0.13 28.80 -0.06
22 1.1225 2768.94 0.03 97.00 0.02
23 1.2013 919.64 0.01 125.32 0.04
24 1.2014 916.57 0.02 125.36 0.07
25 1.2016 913.42 -0.04 125.42 0.11
26 1.2046 838.82 0.02 124.99 -0.11
27 1.2101 701.86 0.02 124.45 0.07
28 1.2805 -951.10 -0.06 86.05 0.03
29 1.2809 -959.40 -0.09 85.78 0.04
30 1.2834 -1010.85 -0.11 83.27 -0.16
31 1.2834 -1011.29 0.01 83.26 -0.15
32 1.2838 -1020.30 0.04 83.12 0.05
33 1.4696 -2379.66 -0.00 -198.52 0.09
34 1.5297 -1539.40 -0.03 -295.88 0.02
35 2.1654 6240.00 0.02 67.24 -0.01
36 2.1654 6238.82 0.03 67.27 -0.00
37 2.1655 6237.14 0.02 67.29 -0.01
38 2.1655 6235.96 0.01 67.38 0.05
39 2.1656 6232.99 0.07 67.39 0.00
40 2.1762 5980.26 0.09 70.21 0.05
41 2.1763 5975.78 0.07 70.27 0.04
42 2.1792 5905.50 0.01 70.77 -0.04
43 2.1794 5900.93 0.03 70.98 0.12
44 2.3238 2649.90 -0.02 -14.57 0.00
45 2.3269 2598.67 -0.02 -18.53 0.01
46 3.1347 11360.36 -0.05 -1.02 -0.06
47 4.0440 17215.59 -0.03 -146.93 -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.
14UT228 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 49.276 49.289 49.263 ecceobj 0.104 0.104 0.103 incobj 3.438 3.438 3.438 qmin 43.463 43.461 43.473 qmax 54.597 54.657 54.593 amean 48.881 48.894 48.868 amin 48.466 48.482 48.473 amax 49.320 49.333 49.311 emean 0.097 0.097 0.096 emin 0.086 0.086 0.085 emax 0.108 0.108 0.107 imean 5.065 5.065 5.065 imin 4.834 4.836 4.832 imax 5.293 5.291 5.292 excite_mean 0.131 0.131 0.131 fracstop 1.000 1.000 1.000 cjmean 3.142 3.142 3.142 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 177.3 177.2 177.6 kozaiamp 179.9 180.0 180.0