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: 14UP228
# Created Mon Apr 28 01:10:10 2025
# Orbit generated from Bernstein formalism
# Fitting 35 observations of 35
# Arc: 4.06y
# First observation: 2013/08/09
# Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
-0.000133 0.019145 -0.000000 0.000746 0.021705 0.000000
# Chi-squared of fit: 8.80 DOF: 64 RMS: 0.09
# Min/Max residuals: -0.19 0.28
# Exact a, adot, b, bdot, g, gdot:
1.391237E-05 1.889888E-02 1.299958E-07 7.347736E-04 2.163685E-02 -1.226060E-03
# Covariance matrix:
2.0032E-13 -1.1540E-13 5.0531E-16 -2.8574E-15 6.6099E-14 -8.6095E-13
-1.1540E-13 1.9372E-13 -3.7787E-15 7.1228E-15 3.9948E-14 2.2855E-12
5.0531E-16 -3.7787E-15 8.9996E-14 -4.9001E-14 -2.3501E-15 -6.2650E-14
-2.8574E-15 7.1228E-15 -4.9001E-14 4.9408E-14 2.4130E-15 1.1353E-13
6.6099E-14 3.9948E-14 -2.3501E-15 2.4130E-15 1.0049E-13 8.3339E-13
-8.6095E-13 2.2855E-12 -6.2650E-14 1.1353E-13 8.3339E-13 3.6563E-11
# lat0 lon0 xBary yBary zBary JD0
2.547997 28.636598 0.965045 0.014099 -0.316091 2456514.012218
# Heliocentric elements and errors
Epoch: 2456510.5000 = 2013/08/06
Mean Anomaly: 228.05973 +/- 0.095
Argument of Peri: 189.61627 +/- 0.094
Long of Asc Node: 339.60858 +/- 0.008
Inclination: 3.41128 +/- 0.000
Eccentricity: 0.12782120 +/- 0.0002
Semi-Major Axis: 42.56967721 +/- 0.0025
Time of Perihelion: 2493691.7356 +/- 26.6
Perihelion: 37.12836996 +/- 0.0090
Aphelion: 48.01098446 +/- 0.0091
Period (y) 277.7530 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 41.26368509 +/- 0.0006
Ecliptic Y 21.43563881 +/- 0.0003
Ecliptic Z 2.05470124 +/- 0.0000
Ecliptic XDOT -0.00129196 +/- 0.0000
Ecliptic YDOT 0.00202173 +/- 0.0000
Ecliptic ZDOT 0.00008613 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 46.54460350 +/- 0.0006
Geocenter to KBO 46.21744714 +/- 0.0007
# Hcoef: 7.60
The following table shows the complete astrometric record for 14UP228. 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 (14UP228) followed by the observatory code and reference code for the source of the astrometry.
2013 08 09.51144 01 42 43.000 +13 22 11.27 24.6r 14UP228 568 C~2SDg 2013 08 09.55415 01 42 42.952 +13 22 11.17 25.7r 14UP228 568 C~2SDg 2013 09 02.42913 01 41 58.651 +13 19 27.26 23.6r 14UP228 568 C~2SDg 2013 09 02.47226 01 41 58.545 +13 19 26.85 24.3r 14UP228 568 C~2SDg 2013 10 08.50929 01 39 49.328 +13 08 40.79 23.8r 14UP228 568 C~2SDg 2013 11 01.50542 01 38 06.755 +12 59 10.10 24.3r 14UP228 568 C~2SDg 2013 11 29.24926 01 36 23.529 +12 48 48.38 24.3r 14UP228 568 C~2SDg 2013 12 04.39820 01 36 08.472 +12 47 11.68 24.2r 14UP228 568 C~2SDg 2013 12 29.26359 01 35 22.335 +12 41 40.08 24.1r 14UP228 568 C~2SDg 2013 12 30.36912 01 35 21.408 +12 41 31.36 24.1r 14UP228 568 C~2SDg 2014 01 02.24545 01 35 19.479 +12 41 11.47 24.2r 14UP228 568 C~2SDg 2014 01 02.29253 01 35 19.450 +12 41 11.04 24.3r 14UP228 568 C~2SDg 2014 01 03.21549 01 35 18.995 +12 41 05.60 24.0r 14UP228 568 C~2SDg 2014 01 03.25792 01 35 18.978 +12 41 05.19 24.5r 14UP228 568 C~2SDg 2014 07 26.52587 01 46 53.886 +13 47 14.64 24.1r 14UP228 568 C~2SDg 2014 07 26.56909 01 46 53.896 +13 47 14.96 24.3r 14UP228 568 C~2SDg 2014 07 26.61244 01 46 53.906 +13 47 15.15 24.4r 14UP228 568 C~2SDg 2014 08 24.53579 01 46 28.004 +13 46 44.07 24.1r 14UP228 568 C~2SDg 2014 08 30.44167 01 46 14.955 +13 45 52.27 24.8r 14UP228 568 C~2SDg 2014 08 30.54834 01 46 14.688 +13 45 51.19 24.4r 14UP228 568 C~2SDg 2014 09 18.46688 01 45 17.964 +13 41 32.07 23.9r 14UP228 568 C~2SDg 2014 09 18.50960 01 45 17.807 +13 41 31.38 24.3r 14UP228 568 C~2SDg 2014 09 23.50788 01 44 59.642 +13 40 02.03 24.1r 14UP228 568 C~2SDg 2014 10 22.29094 01 43 00.449 +13 29 34.98 24.0r 14UP228 568 C~2SDg 2014 10 22.33551 01 43 00.251 +13 29 33.91 23.7r 14UP228 568 C~2SDg 2014 10 22.38043 01 43 00.054 +13 29 32.78 24.2r 14UP228 568 C~2SDg 2014 10 23.47641 01 42 55.300 +13 29 06.52 24.2r 14UP228 568 C~2SDg 2014 10 25.49236 01 42 46.586 +13 28 18.30 24.4r 14UP228 568 C~2SDg 2014 11 21.26073 01 40 58.339 +13 17 50.79 24.3r 14UP228 568 C~2SDg 2014 11 21.27044 01 40 58.295 +13 17 50.78 24.1r 14UP228 568 C~2SDg 2014 11 21.42582 01 40 57.728 +13 17 47.30 24.5r 14UP228 568 C~2SDg 2015 01 28.27540 01 39 35.551 +13 06 52.28 23.8r 14UP228 568 C~2SDg 2015 12 07.42022 01 44 16.014 +13 38 34.09 24.5w 14UP228 568 C~2SDg 2017 08 25.59703 01 58 56.790 +15 02 32.50 24.4w 14UP228 568 C~2SDg 2017 08 30.61830 01 58 46.405 +15 01 55.64 24.4w 14UP228 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 -0.02 0.00 0.08
2 0.0001 -0.69 -0.09 0.16 0.07
3 0.0655 -662.98 -0.10 79.43 -0.19
4 0.0656 -664.58 0.11 79.60 -0.16
5 0.1643 -2657.53 -0.13 157.28 0.08
6 0.2300 -4261.69 0.04 168.43 0.11
7 0.3059 -5894.76 0.28 138.58 -0.08
8 0.3200 -6135.31 0.02 128.88 0.06
9 0.3881 -6885.55 0.04 66.70 -0.06
10 0.3911 -6901.38 0.10 63.55 -0.08
11 0.3990 -6934.96 -0.07 55.35 0.08
12 0.3991 -6935.52 -0.12 55.10 -0.04
13 0.4017 -6943.71 -0.03 52.47 0.06
14 0.4018 -6944.09 -0.01 52.18 -0.12
15 0.9610 3954.21 -0.01 98.99 -0.08
16 0.9611 3954.46 0.03 99.23 -0.02
17 0.9613 3954.66 0.03 99.36 -0.08
18 1.0404 3590.75 -0.04 204.30 -0.02
19 1.0566 3394.59 0.04 223.44 0.02
20 1.0569 3390.57 0.01 223.81 0.00
21 1.1087 2525.73 0.05 275.85 -0.04
22 1.1088 2523.35 0.02 276.02 0.01
23 1.1225 2244.11 -0.01 286.93 -0.09
24 1.2013 396.80 -0.02 322.86 0.11
25 1.2014 393.72 -0.05 322.90 0.10
26 1.2016 390.63 -0.06 322.88 0.04
27 1.2046 316.48 -0.01 323.23 -0.01
28 1.2101 180.53 0.24 323.82 0.09
29 1.2834 -1519.09 -0.03 306.38 -0.07
30 1.2834 -1519.69 -0.07 306.60 0.17
31 1.2838 -1528.66 -0.09 306.34 0.07
32 1.4696 -2884.44 -0.17 128.89 0.14
33 2.3269 1618.64 0.12 431.83 -0.09
34 4.0440 15400.45 0.02 671.26 -0.03
35 4.0578 15245.64 -0.04 688.21 -0.03
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.
14UP228 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 42.751 42.758 42.744 ecceobj 0.122 0.122 0.122 incobj 3.402 3.402 3.402 qmin 35.498 35.493 35.635 qmax 49.981 49.931 49.724 amean 42.511 42.506 42.491 amin 42.083 42.084 42.077 amax 42.943 42.939 42.928 emean 0.130 0.130 0.123 emin 0.102 0.099 0.095 emax 0.165 0.163 0.160 imean 5.373 5.330 5.414 imin 3.292 3.740 1.970 imax 6.619 6.533 7.694 excite_mean 0.161 0.161 0.157 fracstop 1.000 1.000 1.000 cjmean 3.051 3.051 3.053 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 179.9 179.5 183.4 kozaiamp 180.0 180.0 179.9