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: 14UF228
# Created Sun Dec 22 02:10:07 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 32 observations of 32
# Arc: 6.21y
# First observation: 2013/08/09
# Last observation: 2019/10/26
# Chi-squared of fit: 12.32 DOF: 58 RMS: 0.11
# Min/Max residuals: -0.29 0.67
# Exact a, adot, b, bdot, g, gdot:
1.930266E-05 3.899790E-02 4.210171E-06 8.237383E-03 3.230564E-02 -1.740207E-03
# Covariance matrix:
2.4360E-13 -1.0563E-13 1.1336E-14 -2.1331E-14 1.0412E-13 -3.6883E-13
-1.0563E-13 2.0002E-13 -3.0597E-14 4.4500E-14 5.7904E-14 8.0372E-13
1.1336E-14 -3.0597E-14 8.3951E-14 -3.3958E-14 -1.2129E-14 -1.3728E-13
-2.1331E-14 4.4500E-14 -3.3958E-14 3.2269E-14 1.2797E-14 2.0014E-13
1.0412E-13 5.7904E-14 -1.2129E-14 1.2797E-14 1.4851E-13 2.4755E-13
-3.6883E-13 8.0372E-13 -1.3728E-13 2.0014E-13 2.4755E-13 3.6131E-12
# lat0 lon0 xBary yBary zBary JD0
3.729934 26.813639 0.954615 0.022580 -0.345885 2456513.992098
# Heliocentric elements and errors
Epoch: 2456514.5000 = 2013/08/10
Mean Anomaly: 345.05699 +/- 0.009
Argument of Peri: 41.06708 +/- 0.015
Long of Asc Node: 8.31810 +/- 0.000
Inclination: 12.60397 +/- 0.000
Eccentricity: 0.22391701 +/- 0.0000
Semi-Major Axis: 39.71662019 +/- 0.0025
Time of Perihelion: 2460309.3301 +/- 8.7
Perihelion: 30.82339343 +/- 0.0025
Aphelion: 48.60984695 +/- 0.0035
Period (y) 250.3033 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 28.30716608 +/- 0.0003
Ecliptic Y 13.24103571 +/- 0.0002
Ecliptic Z 2.01386505 +/- 0.0000
Ecliptic XDOT -0.00166895 +/- 0.0000
Ecliptic YDOT 0.00286189 +/- 0.0000
Ecliptic ZDOT 0.00068717 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 31.31579739 +/- 0.0003
Geocenter to KBO 30.95439346 +/- 0.0004
# Hcoef: 7.84
The following table shows the complete astrometric record for 14UF228. 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 (14UF228) followed by the observatory code and reference code for the source of the astrometry.
2013 08 09.49132 01 33 58.374 +13 48 43.61 22.9r 14UF228 568 C~2SDe 2013 08 09.53475 01 33 58.311 +13 48 43.80 22.9r 14UF228 568 C~2SDe 2013 09 03.42878 01 32 48.982 +13 46 59.77 21.6r 14UF228 568 C~2SDe 2013 10 07.37052 01 29 51.173 +13 34 59.35 22.6r 14UF228 568 C~2SDe 2013 10 08.49207 01 29 44.338 +13 34 27.42 22.7r 14UF228 568 C~2SDe 2013 10 30.40778 01 27 30.152 +13 23 17.85 22.7r 14UF228 568 C~2SDe 2013 10 30.48641 01 27 29.673 +13 23 15.46 22.6r 14UF228 568 C~2SDe 2013 11 01.48519 01 27 17.818 +13 22 12.61 22.8r 14UF228 568 C~2SDe 2013 11 28.23576 01 25 00.337 +13 09 19.78 22.8r 14UF228 568 C~2SDe 2013 12 03.30466 01 24 40.576 +13 07 19.38 22.9r 14UF228 568 C~2SDe 2013 12 04.34687 01 24 36.832 +13 06 56.41 22.9r 14UF228 568 C~2SDe 2013 12 29.29682 01 23 43.423 +13 00 45.21 22.9r 14UF228 568 C~2SDe 2014 08 24.45776 01 41 23.614 +15 04 12.65 22.9r 14UF228 568 C~2SDe 2014 08 24.53170 01 41 23.395 +15 04 12.46 22.9r 14UF228 568 C~2SDf 2014 08 30.43607 01 41 04.710 +15 03 41.00 22.9r 14UF228 568 C~2SDf 2014 08 30.54438 01 41 04.321 +15 03 40.20 22.8r 14UF228 568 C~2SDf 2014 09 18.45130 01 39 42.312 +14 59 31.40 22.7r 14UF228 568 C~2SDf 2014 09 18.49406 01 39 42.090 +14 59 30.60 22.6r 14UF228 568 C~2SDf 2014 10 22.27410 01 36 23.219 +14 45 03.03 22.7r 14UF228 568 C~2SDf 2014 10 22.31909 01 36 22.933 +14 45 01.68 22.7r 14UF228 568 C~2SDf 2014 10 22.36391 01 36 22.649 +14 45 00.27 22.7r 14UF228 568 C~2SDf 2014 10 23.45625 01 36 15.828 +14 44 26.73 22.8r 14UF228 568 C~2SDf 2014 10 25.47218 01 36 03.294 +14 43 24.61 22.6r 14UF228 568 C~2SDf 2014 11 20.20326 01 33 35.403 +14 30 16.35 22.7r 14UF228 568 C~2SDf 2014 11 20.34387 01 33 34.663 +14 30 12.37 22.4r 14UF228 568 C~2SDf 2014 11 21.24351 01 33 30.188 +14 29 46.62 22.9r 14UF228 568 C~2SDf 2014 11 21.40974 01 33 29.344 +14 29 41.82 22.9r 14UF228 568 C~2SDf 2015 01 28.25953 01 32 01.080 +14 17 35.43 22.9r 14UF228 568 C~2SDf 2015 02 19.23532 01 33 32.091 +14 24 56.55 22.9r 14UF228 568 C~2SDf 2016 01 07.29613 01 39 22.270 +15 31 22.19 23.1w 14UF228 568 C~2SDf 2019 10 26.369390 02 18 15.272 +20 56 43.99 22.7G 14UF228 G37 C~3coM 2019 10 26.446280 02 18 14.778 +20 56 41.73 14UF228 G37 C~3coM
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 -0.03 0.00 -0.05
2 0.0001 0.00 0.02 0.00 -0.05
3 0.0683 0.00 -0.06 0.00 0.67
4 0.1612 0.00 0.07 0.00 -0.02
5 0.1643 0.00 -0.04 0.00 -0.05
6 0.2243 0.00 -0.07 0.00 -0.06
7 0.2245 0.00 -0.09 0.00 0.03
8 0.2300 0.00 0.07 0.00 -0.08
9 0.3032 0.00 0.08 0.00 -0.08
10 0.3171 0.00 -0.03 0.00 -0.29
11 0.3199 0.00 0.06 0.00 -0.03
12 0.3882 0.00 0.08 0.00 -0.01
13 1.0403 0.00 -0.03 0.00 -0.02
14 1.0405 0.00 -0.04 0.00 0.02
15 1.0567 0.00 0.03 0.00 0.03
16 1.0570 0.00 0.01 0.00 -0.00
17 1.1087 0.00 -0.02 0.00 -0.06
18 1.1088 0.00 -0.00 0.00 -0.07
19 1.2013 0.00 0.05 0.00 0.02
20 1.2014 0.00 0.03 0.00 0.03
21 1.2016 0.00 0.04 0.00 -0.02
22 1.2046 0.00 -0.00 0.00 -0.08
23 1.2101 0.00 -0.01 0.00 -0.03
24 1.2805 0.00 0.05 0.00 0.02
25 1.2809 0.00 -0.19 0.00 0.06
26 1.2834 0.00 -0.00 0.00 0.06
27 1.2838 0.00 -0.02 0.00 -0.01
28 1.4696 0.00 0.01 0.00 0.04
29 1.5298 0.00 0.04 0.00 -0.00
30 2.4115 0.00 0.05 0.00 0.05
31 6.2118 0.00 -0.14 0.00 0.12
32 6.2121 0.00 0.14 0.00 -0.11
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.
14UF228 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.911 39.911 39.911 ecceobj 0.227 0.227 0.227 incobj 12.572 12.572 12.572 qmin 28.530 28.546 28.534 qmax 50.981 50.933 50.972 amean 39.455 39.455 39.456 amin 38.954 38.959 38.962 amax 40.044 40.059 40.043 emean 0.236 0.236 0.236 emin 0.191 0.193 0.192 emax 0.276 0.276 0.276 imean 11.209 11.214 11.225 imin 9.146 9.137 9.143 imax 13.619 13.653 13.650 excite_mean 0.307 0.307 0.307 fracstop 1.000 1.000 1.000 cjmean 2.944 2.944 2.944 libcent 0 179.3 179.5 179.8 libamp 0 106.0 105.9 106.1 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 91.1 89.6 88.9 kozaiamp 72.7 72.7 72.4