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: 14UQ228
# Created Tue Apr 1 01:10:09 2025
# Orbit generated from Bernstein formalism
# Fitting 25 observations of 25
# Arc: 3.99y
# First observation: 2013/09/02
# Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
-0.000056 0.018785 -0.000002 -0.000725 0.021402 0.000000
# Chi-squared of fit: 17.93 DOF: 44 RMS: 0.15
# Min/Max residuals: -0.47 0.32
# Exact a, adot, b, bdot, g, gdot:
1.226821E-05 1.888486E-02 -5.331549E-07 -7.301727E-04 2.158539E-02 2.215800E-03
# Covariance matrix:
3.3401E-13 -2.4505E-13 -5.4940E-15 7.2109E-15 2.3490E-14 -2.2252E-12
-2.4505E-13 4.0462E-13 9.8374E-15 -1.5183E-14 2.1422E-13 4.7762E-12
-5.4940E-15 9.8374E-15 1.6269E-13 -6.3361E-14 4.7839E-15 1.2714E-13
7.2109E-15 -1.5183E-14 -6.3361E-14 3.8909E-14 -9.4171E-15 -1.9856E-13
2.3490E-14 2.1422E-13 4.7839E-15 -9.4171E-15 3.3362E-13 3.0317E-12
-2.2252E-12 4.7762E-12 1.2714E-13 -1.9856E-13 3.0317E-12 6.2543E-11
# lat0 lon0 xBary yBary zBary JD0
3.596929 28.574758 0.759172 0.041845 -0.664878 2456537.976918
# Heliocentric elements and errors
Epoch: 2456530.5000 = 2013/08/26
Mean Anomaly: 121.44859 +/- 0.137
Argument of Peri: 348.51212 +/- 0.130
Long of Asc Node: 266.58642 +/- 0.007
Inclination: 4.13712 +/- 0.000
Eccentricity: 0.12245397 +/- 0.0003
Semi-Major Axis: 43.76868413 +/- 0.0046
Time of Perihelion: 2420849.7787 +/- 39.9
Perihelion: 38.40903515 +/- 0.0124
Aphelion: 49.12833312 +/- 0.0128
Period (y) 289.5699 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 41.55213340 +/- 0.0011
Ecliptic Y 21.77000696 +/- 0.0006
Ecliptic Z 2.90645917 +/- 0.0001
Ecliptic XDOT -0.00090045 +/- 0.0000
Ecliptic YDOT 0.00223940 +/- 0.0000
Ecliptic ZDOT -0.00007466 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 46.99957976 +/- 0.0010
Geocenter to KBO 46.32762379 +/- 0.0012
# Hcoef: 8.07
The following table shows the complete astrometric record for 14UQ228. 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 (14UQ228) followed by the observatory code and reference code for the source of the astrometry.
2013 09 02.47614 01 40 55.498 +14 19 34.75 25.0r 14UQ228 568 C~2SDg 2013 11 01.51045 01 37 06.180 +13 59 04.36 24.1r 14UQ228 568 C~2SDg 2013 11 29.25439 01 35 24.575 +13 48 10.44 24.6r 14UQ228 568 C~2SDg 2014 07 26.52975 01 45 55.877 +14 42 13.14 25.5r 14UQ228 568 C~2SDg 2014 07 26.57298 01 45 55.908 +14 42 14.00 24.9r 14UQ228 568 C~2SDg 2014 08 24.54028 01 45 30.189 +14 41 52.82 24.9r 14UQ228 568 C~2SDg 2014 08 30.55222 01 45 17.016 +14 41 01.59 24.7r 14UQ228 568 C~2SDg 2014 09 18.47076 01 44 20.944 +14 36 45.87 24.7r 14UQ228 568 C~2SDg 2014 09 18.51348 01 44 20.798 +14 36 45.21 24.8r 14UQ228 568 C~2SDg 2014 09 23.51179 01 44 02.850 +14 35 16.35 24.9r 14UQ228 568 C~2SDg 2014 10 22.29484 01 42 05.330 +14 24 42.14 24.5r 14UQ228 568 C~2SDg 2014 10 22.33958 01 42 05.158 +14 24 40.92 24.4r 14UQ228 568 C~2SDg 2014 10 22.38431 01 42 04.955 +14 24 39.93 24.9r 14UQ228 568 C~2SDg 2014 10 23.48145 01 42 00.254 +14 24 13.21 24.7r 14UQ228 568 C~2SDg 2014 11 20.36911 01 40 08.502 +14 12 53.83 25.0r 14UQ228 568 C~2SDg 2014 11 21.26474 01 40 05.357 +14 12 33.28 25.2r 14UQ228 568 C~2SDg 2014 11 21.27445 01 40 05.304 +14 12 32.94 24.4r 14UQ228 568 C~2SDg 2014 11 21.42970 01 40 04.759 +14 12 29.66 25.4r 14UQ228 568 C~2SDg 2015 12 07.42022 01 43 28.797 +14 27 55.64 25.2w 14UQ228 568 C~2SDg 2016 11 04.38287 01 49 36.551 +15 00 35.96 25.1w 14UQ228 568 C~2SDg 2016 11 04.43686 01 49 36.328 +15 00 34.66 24.6w 14UQ228 568 C~2SDg 2017 08 25.58743 01 58 03.865 +15 41 49.21 24.2w 14UQ228 568 C~2SDg 2017 08 25.59703 01 58 03.856 +15 41 49.01 24.3w 14UQ228 568 C~2SDg 2017 08 30.60899 01 57 53.679 +15 41 12.45 25.2w 14UQ228 568 C~2SDg 2017 08 30.61830 01 57 53.664 +15 41 12.50 25.3w 14UQ228 568 C~2SDg
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 0.32 0.00 -0.00
2 0.1644 -3554.83 0.26 62.15 -0.09
3 0.2403 -5171.67 -0.47 -6.37 -0.11
4 0.8954 4559.81 -0.22 -293.21 -0.12
5 0.8955 4560.54 0.29 -292.56 0.32
6 0.9749 4204.08 -0.22 -179.62 0.03
7 0.9913 4007.15 -0.15 -159.45 -0.08
8 1.0431 3155.46 -0.11 -108.19 -0.15
9 1.0432 3153.24 -0.01 -108.05 -0.12
10 1.0569 2878.11 -0.06 -97.98 0.12
11 1.1357 1057.35 -0.10 -78.46 0.16
12 1.1358 1054.58 0.15 -78.70 -0.08
13 1.1360 1051.47 0.06 -78.56 0.06
14 1.1390 978.13 -0.05 -78.95 0.22
15 1.2153 -781.84 -0.01 -127.31 -0.04
16 1.2178 -831.91 0.19 -129.95 -0.09
17 1.2178 -832.75 -0.10 -129.99 -0.11
18 1.2182 -841.33 0.16 -130.18 0.09
19 2.2613 2258.63 0.07 -332.71 0.15
20 3.1729 7945.72 -0.05 -392.75 -0.08
21 3.1731 7942.23 0.03 -392.83 -0.10
22 3.9784 15712.43 -0.02 -620.61 0.09
23 3.9784 15712.23 0.06 -620.76 -0.09
24 3.9922 15560.77 -0.07 -604.71 -0.04
25 3.9922 15560.58 0.06 -604.59 0.05
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.
14UQ228 quality flag:2 Type: CLASSICAL 7:4EEE 7:4EEE axisobj 43.999 44.014 43.985 ecceobj 0.122 0.122 0.121 incobj 4.140 4.140 4.140 qmin 36.343 36.174 36.345 qmax 51.412 51.674 51.410 amean 43.727 43.727 43.727 amin 43.362 43.343 43.365 amax 44.138 44.158 44.137 emean 0.123 0.150 0.120 emin 0.039 0.118 0.037 emax 0.166 0.171 0.166 imean 5.745 4.310 5.888 imin 4.108 3.641 4.140 imax 8.325 5.655 8.701 excite_mean 0.164 0.168 0.163 fracstop 1.000 1.000 1.000 cjmean 3.066 3.064 3.067 libcent 0 -180.0 180.4 178.4 libamp 0 -180.0 42.7 177.1 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 153.4 193.0 157.5 kozaiamp 165.7 180.0 165.3