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: 14UA229
# Created Sun Apr 21 01:16:31 2024
# Orbit generated from Bernstein formalism
# Fitting 14 observations of 14
# Arc: 2.94y
# First observation: 2014/09/23
# Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
-0.000655 0.064656 -0.000025 0.038768 0.046283 0.000000
# Chi-squared of fit: 9.12 DOF: 22 RMS: 0.14
# Min/Max residuals: -0.37 0.32
# Exact a, adot, b, bdot, g, gdot:
2.079103E-05 6.398998E-02 1.254248E-05 3.866737E-02 4.750450E-02 -1.493431E-03
# Covariance matrix:
6.0695E-13 -4.1028E-13 1.4054E-14 -6.7168E-14 6.5280E-13 -6.8256E-13
-4.1028E-13 1.1315E-12 -1.1552E-13 5.4275E-13 -1.3562E-13 4.8642E-12
1.4054E-14 -1.1552E-13 1.7685E-13 -1.4789E-13 -2.6817E-14 -6.1119E-13
-6.7168E-14 5.4275E-13 -1.4789E-13 4.3166E-13 1.2394E-13 2.8685E-12
6.5280E-13 -1.3562E-13 -2.6817E-14 1.2394E-13 1.1164E-12 9.6537E-13
-6.8256E-13 4.8642E-12 -6.1119E-13 2.8685E-12 9.6537E-13 2.5495E-11
# lat0 lon0 xBary yBary zBary JD0
2.187644 30.805250 0.513187 0.033149 -0.864520 2456924.020338
# Heliocentric elements and errors
Epoch: 2456920.5000 = 2014/09/20
Mean Anomaly: 356.28015 +/- 0.006
Argument of Peri: 12.87444 +/- 0.015
Long of Asc Node: 26.00889 +/- 0.000
Inclination: 31.29118 +/- 0.000
Eccentricity: 0.37732091 +/- 0.0001
Semi-Major Axis: 35.08813071 +/- 0.0064
Time of Perihelion: 2457704.9436 +/- 1.3
Perihelion: 21.84864530 +/- 0.0053
Aphelion: 48.32761612 +/- 0.0095
Period (y) 207.8493 +/- 0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 19.07075063 +/- 0.0004
Ecliptic Y 10.77662550 +/- 0.0002
Ecliptic Z 0.80381841 +/- 0.0000
Ecliptic XDOT -0.00204029 +/- 0.0000
Ecliptic YDOT 0.00307545 +/- 0.0000
Ecliptic ZDOT 0.00222374 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 21.91974705 +/- 0.0004
Geocenter to KBO 21.05063668 +/- 0.0005
# Hcoef: 11.34
The following table shows the complete astrometric record for 14UA229. 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 (14UA229) followed by the observatory code and reference code for the source of the astrometry.
2014 09 23.51956 01 51 34.702 +13 48 10.78 24.6r 14UA229 568 C~2SDi 2014 10 22.30273 01 47 26.218 +13 37 29.75 24.7r 14UA229 568 C~2SDi 2014 10 22.34832 01 47 25.788 +13 37 28.59 24.6r 14UA229 568 C~2SDi 2014 10 22.39209 01 47 25.377 +13 37 27.46 24.3r 14UA229 568 C~2SDi 2014 10 23.49156 01 47 15.278 +13 36 57.48 24.4r 14UA229 568 C~2SDi 2014 10 25.50750 01 46 56.889 +13 36 02.40 24.6r 14UA229 568 C~2SDi 2014 11 20.22362 01 43 16.394 +13 24 41.65 25.0r 14UA229 568 C~2SDi 2014 11 20.36407 01 43 15.305 +13 24 38.57 24.8r 14UA229 568 C~2SDi 2015 02 19.25614 01 42 24.125 +13 43 14.16 24.9r 14UA229 568 C~2SDi 2015 10 09.44000 02 00 32.002 +17 05 33.55 24.7w 14UA229 568 C~2SDi 2015 10 09.48270 02 00 31.621 +17 05 32.73 24.8w 14UA229 568 C~2SDi 2015 10 09.51194 02 00 31.357 +17 05 32.16 24.8w 14UA229 568 C~2SDi 2017 08 25.55259 02 28 34.031 +23 33 29.27 25.4w 14UA229 568 C~2SDi 2017 08 30.57505 02 28 19.162 +23 36 07.20 25.0w 14UA229 568 C~2SDi
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 0.10 0.00 0.07
2 0.0788 -3613.96 0.24 681.71 -0.15
3 0.0789 -3620.23 0.16 682.85 -0.06
4 0.0790 -3626.23 0.13 683.93 0.00
5 0.0821 -3774.54 -0.37 708.32 0.04
6 0.0876 -4044.77 -0.02 752.35 -0.05
7 0.1580 -7293.85 -0.31 1268.62 -0.05
8 0.1584 -7309.81 -0.16 1271.46 0.07
9 0.4072 -7604.70 0.32 2582.02 0.23
10 1.0429 11412.90 -0.06 8423.49 -0.01
11 1.0430 11407.47 -0.01 8424.59 -0.04
12 1.0431 11403.70 -0.02 8425.34 -0.05
13 2.9214 42036.67 -0.01 23177.52 -0.02
14 2.9351 41885.15 0.02 23395.27 0.04
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.
14UA229 quality flag:2 Type: CENTAURR CENTAURS CENTAURR axisobj 35.330 35.351 35.309 ecceobj 0.381 0.381 0.381 incobj 31.221 31.221 31.222 qmin 21.673 21.671 21.536 qmax 48.816 48.831 48.914 amean 35.170 34.943 34.950 amin 34.568 34.541 33.669 amax 35.887 35.421 36.215 emean 0.312 0.243 0.301 emin 0.189 0.162 0.129 emax 0.381 0.381 0.385 imean 32.838 34.355 31.815 imin 31.024 31.024 29.235 imax 35.720 35.941 35.751 excite_mean 0.628 0.616 0.610 fracstop 0.075 1.000 0.609 cjmean 2.566 2.585 2.605 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 38.1 161.6 172.7 kozaiamp 18.9 179.9 180.0