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: 14UG229
# Created Sun Dec 22 02:10:08 2024
# Orbit generated from Bernstein formalism
# Fitting 16 observations of 16
# Arc: 1.94y
# First observation: 2013/10/30
# Last observation: 2015/10/09
Preliminary a, adot, b, bdot, g, gdot:
0.000998 0.081010 0.000126 0.017393 0.056400 0.000000
# Chi-squared of fit: 8.14 DOF: 26 RMS: 0.13
# Min/Max residuals: -0.33 0.34
# Exact a, adot, b, bdot, g, gdot:
2.347463E-05 8.548449E-02 4.348619E-06 1.824722E-02 5.547087E-02 2.850914E-02
# Covariance matrix:
3.6171E-13 -4.9123E-13 1.2317E-14 -5.5918E-14 -6.2849E-14 -1.7648E-12
-4.9123E-13 1.7644E-12 -7.1634E-14 3.3602E-13 1.2442E-12 1.0511E-11
1.2317E-14 -7.1634E-14 2.9909E-13 -2.2950E-13 -6.4679E-14 -4.9622E-13
-5.5918E-14 3.3602E-13 -2.2950E-13 3.0487E-13 3.2255E-13 2.3438E-12
-6.2849E-14 1.2442E-12 -6.4679E-14 3.2255E-13 2.6780E-12 9.9295E-12
-1.7648E-12 1.0511E-11 -4.9622E-13 2.3438E-12 9.9295E-12 7.3182E-11
# lat0 lon0 xBary yBary zBary JD0
1.947644 25.062620 -0.201814 0.033107 -0.970782 2456595.896878
# Heliocentric elements and errors
Epoch: 2456590.5000 = 2013/10/25
Mean Anomaly: 25.82680 +/- 0.006
Argument of Peri: 303.94985 +/- 0.013
Long of Asc Node: 17.12865 +/- 0.000
Inclination: 12.24326 +/- 0.000
Eccentricity: 0.44092678 +/- 0.0001
Semi-Major Axis: 28.01344022 +/- 0.0042
Time of Perihelion: 2452705.2744 +/- 0.4
Perihelion: 15.66156436 +/- 0.0034
Aphelion: 40.36531608 +/- 0.0065
Period (y) 148.2716 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 17.11428972 +/- 0.0005
Ecliptic Y 8.22924813 +/- 0.0002
Ecliptic Z 0.61275406 +/- 0.0000
Ecliptic XDOT -0.00054730 +/- 0.0000
Ecliptic YDOT 0.00440310 +/- 0.0000
Ecliptic ZDOT 0.00094806 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 18.99986592 +/- 0.0004
Geocenter to KBO 18.02747870 +/- 0.0005
# Hcoef: 11.63
The following table shows the complete astrometric record for 14UG229. 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 (14UG229) followed by the observatory code and reference code for the source of the astrometry.
2013 10 30.39610 01 29 58.873 +11 30 45.95 24.1r 14UG229 568 C~2SDj 2013 11 01.33687 01 29 40.732 +11 29 18.32 24.4r 14UG229 568 C~2SDj 2013 11 01.47502 01 29 39.420 +11 29 12.31 24.6r 14UG229 568 C~2SDj 2013 11 05.44310 01 29 03.127 +11 26 16.47 24.1r 14UG229 568 C~2SDj 2014 10 22.30668 01 48 01.640 +14 16 38.78 24.5r 14UG229 568 C~2SDj 2014 10 22.35220 01 48 01.177 +14 16 36.92 24.4r 14UG229 568 C~2SDj 2014 10 22.40142 01 48 00.693 +14 16 34.83 24.3r 14UG229 568 C~2SDj 2014 10 23.49660 01 47 50.103 +14 15 47.43 24.6r 14UG229 568 C~2SDj 2014 10 25.51256 01 47 30.570 +14 14 19.94 24.4r 14UG229 568 C~2SDj 2014 11 20.37921 01 43 37.380 +13 55 53.10 24.2r 14UG229 568 C~2SDj 2014 11 21.28243 01 43 30.293 +13 55 17.43 24.5r 14UG229 568 C~2SDj 2014 11 21.43749 01 43 29.050 +13 55 11.63 24.6r 14UG229 568 C~2SDj 2015 02 19.26866 01 43 36.758 +13 57 01.77 24.4r 14UG229 568 C~2SDj 2015 10 09.42350 02 06 10.841 +16 50 58.18 24.9w 14UG229 568 C~2SDj 2015 10 09.46604 02 06 10.448 +16 50 56.87 24.7w 14UG229 568 C~2SDj 2015 10 09.49960 02 06 10.133 +16 50 55.63 24.9w 14UG229 568 C~2SDj
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 0.18 0.00 0.18
2 0.0053 -280.19 -0.08 16.60 -0.09
3 0.0057 -300.33 -0.05 18.11 0.11
4 0.0166 -861.14 -0.08 51.09 -0.04
5 0.9772 18401.41 0.02 3599.71 -0.07
6 0.9773 18394.40 -0.15 3600.33 0.09
7 0.9774 18387.02 -0.12 3600.84 0.10
8 0.9804 18224.95 0.34 3610.48 -0.16
9 0.9859 17926.03 0.03 3628.28 0.13
10 1.0568 14338.81 -0.16 3790.88 -0.00
11 1.0592 14229.14 -0.03 3794.17 -0.33
12 1.0597 14210.08 0.04 3795.17 -0.09
13 1.3056 14354.88 0.10 3858.48 -0.07
14 1.9412 36698.19 0.00 6990.00 0.04
15 1.9413 36692.25 0.03 6990.63 0.14
16 1.9414 36687.42 -0.08 6990.95 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.
14UG229 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 28.070 28.099 28.041 ecceobj 0.443 0.444 0.442 incobj 12.230 12.230 12.230 qmin 15.105 15.028 14.571 qmax 41.572 41.966 42.143 amean 28.028 27.990 27.889 amin 27.625 27.365 27.522 amax 28.962 28.602 28.478 emean 0.445 0.452 0.464 emin 0.418 0.434 0.436 emax 0.465 0.467 0.481 imean 11.684 11.576 11.120 imin 10.471 10.689 10.335 imax 14.292 13.311 12.341 excite_mean 0.489 0.495 0.502 fracstop 0.019 0.013 0.012 cjmean 2.764 2.758 2.750 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 170.4 179.4 199.8 kozaiamp 179.4 179.3 179.4