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: 14UG228
# Created Tue Apr 1 01:10:09 2025
# Orbit generated from Bernstein formalism
# Fitting 42 observations of 42
# Arc: 4.06y
# First observation: 2013/08/09
# Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
-0.000198 0.031515 0.000010 -0.001080 0.026701 0.000000
# Chi-squared of fit: 3.71 DOF: 78 RMS: 0.05
# Min/Max residuals: -0.16 0.14
# Exact a, adot, b, bdot, g, gdot:
1.805835E-05 3.111812E-02 -4.062643E-07 -1.068727E-03 2.663374E-02 9.297546E-05
# Covariance matrix:
1.4702E-13 -7.8044E-14 -1.2313E-15 1.3009E-15 4.8315E-14 -3.9525E-13
-7.8044E-14 1.6858E-13 1.9911E-15 -4.8394E-15 5.2189E-14 1.3614E-12
-1.2313E-15 1.9911E-15 7.5391E-14 -3.7705E-14 9.6733E-17 2.0077E-14
1.3009E-15 -4.8394E-15 -3.7705E-14 3.4841E-14 -2.0577E-15 -4.9239E-14
4.8315E-14 5.2189E-14 9.6733E-17 -2.0577E-15 8.9352E-14 5.4731E-13
-3.9525E-13 1.3614E-12 2.0077E-14 -4.9239E-14 5.4731E-13 1.3844E-11
# lat0 lon0 xBary yBary zBary JD0
2.935156 26.771029 0.954357 0.017816 -0.346874 2456513.992098
# Heliocentric elements and errors
Epoch: 2456510.5000 = 2013/08/06
Mean Anomaly: 357.15344 +/- 0.014
Argument of Peri: 128.66785 +/- 0.029
Long of Asc Node: 262.34824 +/- 0.005
Inclination: 3.46464 +/- 0.000
Eccentricity: 0.31478471 +/- 0.0000
Semi-Major Axis: 55.25391946 +/- 0.0039
Time of Perihelion: 2457696.7079 +/- 5.9
Perihelion: 37.86083036 +/- 0.0035
Aphelion: 72.64700857 +/- 0.0056
Period (y) 410.7266 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 34.21749635 +/- 0.0004
Ecliptic Y 16.19716888 +/- 0.0002
Ecliptic Z 1.92261505 +/- 0.0000
Ecliptic XDOT -0.00143351 +/- 0.0000
Ecliptic YDOT 0.00286191 +/- 0.0000
Ecliptic ZDOT -0.00010909 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.90622357 +/- 0.0004
Geocenter to KBO 37.54635987 +/- 0.0004
# Hcoef: 7.86
The following table shows the complete astrometric record for 14UG228. 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 (14UG228) followed by the observatory code and reference code for the source of the astrometry.
2013 08 09.49132 01 35 00.197 +13 03 23.98 23.7r 14UG228 568 C~2SDf 2013 08 09.53475 01 35 00.140 +13 03 23.94 23.6r 14UG228 568 C~2SDf 2013 09 02.40909 01 34 08.963 +12 59 59.19 23.5r 14UG228 568 C~2SDf 2013 09 02.45277 01 34 08.823 +12 59 58.39 23.7r 14UG228 568 C~2SDf 2013 09 03.42878 01 34 05.722 +12 59 43.68 23.7r 14UG228 568 C~2SDf 2013 09 03.47542 01 34 05.572 +12 59 43.02 23.6r 14UG228 568 C~2SDf 2013 10 30.40389 01 29 49.515 +12 35 51.56 23.8r 14UG228 568 C~2SDf 2013 10 30.48253 01 29 49.128 +12 35 49.35 23.5r 14UG228 568 C~2SDf 2013 11 01.48006 01 29 39.528 +12 34 50.12 23.6r 14UG228 568 C~2SDf 2013 12 04.37826 01 27 28.755 +12 20 19.07 23.5r 14UG228 568 C~2SDf 2013 12 29.23912 01 26 45.194 +12 13 55.98 23.6r 14UG228 568 C~2SDf 2013 12 30.33025 01 26 44.654 +12 13 46.79 23.8r 14UG228 568 C~2SDf 2014 01 02.22590 01 26 43.863 +12 13 25.71 23.9r 14UG228 568 C~2SDf 2014 01 02.27308 01 26 43.851 +12 13 25.42 23.8r 14UG228 568 C~2SDf 2014 01 02.35211 01 26 43.833 +12 13 24.95 23.8r 14UG228 568 C~2SDf 2014 01 03.23161 01 26 43.794 +12 13 19.53 23.8r 14UG228 568 C~2SDf 2014 07 26.51389 01 41 58.679 +13 37 55.77 23.6r 14UG228 568 C~2SDf 2014 07 26.55715 01 41 58.691 +13 37 56.11 23.7r 14UG228 568 C~2SDf 2014 07 26.60045 01 41 58.710 +13 37 56.46 23.8r 14UG228 568 C~2SDf 2014 08 24.45000 01 41 32.513 +13 37 24.80 23.7r 14UG228 568 C~2SDf 2014 08 24.52394 01 41 32.333 +13 37 24.11 23.6r 14UG228 568 C~2SDf 2014 08 30.42828 01 41 17.513 +13 36 21.02 23.6r 14UG228 568 C~2SDf 2014 08 30.53659 01 41 17.199 +13 36 19.80 23.7r 14UG228 568 C~2SDf 2014 09 18.45522 01 40 11.738 +13 31 02.11 23.5r 14UG228 568 C~2SDf 2014 09 18.49795 01 40 11.563 +13 31 01.20 23.7r 14UG228 568 C~2SDf 2014 09 23.49621 01 39 50.467 +13 29 11.50 23.7r 14UG228 568 C~2SDf 2014 10 22.27847 01 37 32.169 +13 16 20.80 23.8r 14UG228 568 C~2SDf 2014 10 22.32309 01 37 31.946 +13 16 19.46 23.9r 14UG228 568 C~2SDf 2014 10 22.36779 01 37 31.719 +13 16 18.13 23.6r 14UG228 568 C~2SDf 2014 10 23.46129 01 37 26.235 +13 15 46.02 23.3r 14UG228 568 C~2SDf 2014 11 20.20843 01 35 17.258 +13 02 29.23 23.6r 14UG228 568 C~2SDf 2014 11 20.34891 01 35 16.669 +13 02 25.46 22.9r 14UG228 568 C~2SDf 2014 11 21.24744 01 35 13.060 +13 02 01.65 23.4r 14UG228 568 C~2SDf 2014 11 21.41395 01 35 12.382 +13 01 57.16 23.0r 14UG228 568 C~2SDf 2015 01 28.25559 01 34 02.199 +12 49 30.28 23.7r 14UG228 568 C~2SDf 2015 02 18.23954 01 35 13.065 +12 54 27.25 23.9r 14UG228 568 C~2SDf 2015 02 18.26427 01 35 13.176 +12 54 27.84 23.6r 14UG228 568 C~2SDf 2015 12 07.42846 01 41 16.841 +13 31 19.03 23.8w 14UG228 568 C~2SDf 2016 11 04.38287 01 50 33.137 +14 20 15.35 23.9w 14UG228 568 C~2SDf 2016 11 04.43686 01 50 32.868 +14 20 13.79 23.8w 14UG228 568 C~2SDf 2017 08 25.57304 02 02 33.860 +15 19 00.92 23.7w 14UG228 568 C~2SDf 2017 08 30.59490 02 02 23.123 +15 18 20.61 23.8w 14UG228 568 C~2SDf
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 -0.05
2 0.0001 -0.79 0.00 0.27 0.03
3 0.0655 -771.83 0.03 82.59 0.07
4 0.0656 -774.02 -0.03 82.59 -0.08
5 0.0683 -821.59 -0.04 85.46 -0.01
6 0.0684 -823.87 0.03 85.65 0.02
7 0.2243 -4834.18 -0.06 130.08 -0.16
8 0.2245 -4840.26 -0.01 130.12 -0.03
9 0.2299 -4992.83 -0.12 126.98 0.14
10 0.3200 -7096.43 0.03 27.16 0.07
11 0.3881 -7832.49 0.04 -91.34 -0.06
12 0.3911 -7843.27 -0.00 -96.93 0.00
13 0.3990 -7861.90 0.02 -112.20 0.00
14 0.3991 -7862.17 0.00 -112.40 0.03
15 0.3993 -7862.59 -0.02 -112.74 0.09
16 0.4018 -7865.14 0.08 -117.56 -0.04
17 0.9610 6445.76 0.03 -275.09 -0.05
18 0.9612 6446.04 -0.06 -274.83 0.01
19 0.9613 6446.43 -0.03 -274.61 0.04
20 1.0403 6078.20 0.12 -167.31 -0.06
21 1.0405 6075.50 0.01 -167.01 -0.05
22 1.0566 5851.00 -0.02 -148.43 -0.02
23 1.0569 5846.29 -0.07 -147.93 0.09
24 1.1087 4840.66 -0.00 -101.53 0.03
25 1.1088 4837.95 0.04 -101.46 -0.01
26 1.1225 4511.23 0.06 -93.07 -0.02
27 1.2013 2350.32 -0.03 -82.91 0.08
28 1.2015 2346.80 0.00 -82.98 0.02
29 1.2016 2343.23 0.00 -83.02 -0.01
30 1.2046 2256.96 -0.06 -83.95 -0.00
31 1.2805 212.21 0.05 -141.84 0.05
32 1.2809 202.82 -0.06 -142.22 0.04
33 1.2834 145.03 -0.07 -145.17 0.02
34 1.2838 134.17 -0.07 -145.75 -0.09
35 1.4696 -1093.69 0.08 -466.70 -0.04
36 1.5270 -20.47 -0.05 -568.36 -0.05
37 1.5271 -18.75 0.06 -568.41 0.02
38 2.3270 5733.45 0.02 -426.92 0.01
39 3.2386 14369.10 -0.01 -550.05 0.05
40 3.2387 14364.87 0.01 -550.14 0.03
41 4.0440 25500.60 -0.01 -829.87 -0.07
42 4.0578 25338.33 0.01 -815.32 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.
14UG228 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 55.671 55.684 55.659 ecceobj 0.320 0.320 0.320 incobj 3.467 3.467 3.467 qmin 37.034 37.042 37.057 qmax 74.058 74.128 74.060 amean 55.083 55.110 55.067 amin 54.457 54.498 54.469 amax 55.854 55.892 55.861 emean 0.313 0.314 0.313 emin 0.300 0.301 0.300 emax 0.326 0.327 0.327 imean 5.016 5.046 5.029 imin 4.425 4.517 4.452 imax 5.533 5.552 5.528 excite_mean 0.325 0.326 0.325 fracstop 1.000 1.000 1.000 cjmean 3.105 3.105 3.105 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 179.6 181.0 180.7 kozaiamp 180.0 180.0 180.0