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: 14UJ228
# Created Sun Dec 22 02:10:07 2024
# Orbit generated from Bernstein formalism
# Fitting 32 observations of 32
# Arc: 2.33y
# First observation: 2013/08/09
# Last observation: 2015/12/07
Preliminary a, adot, b, bdot, g, gdot:
-0.000090 0.024190 0.000005 -0.005800 0.024726 0.000000
# Chi-squared of fit: 7.76 DOF: 58 RMS: 0.09
# Min/Max residuals: -0.19 0.28
# Exact a, adot, b, bdot, g, gdot:
1.460815E-05 2.396058E-02 -4.565308E-06 -5.742313E-03 2.459584E-02 -1.521823E-03
# Covariance matrix:
1.8783E-13 -1.1436E-14 9.1620E-15 -4.6927E-14 1.3935E-13 5.0024E-12
-1.1436E-14 5.0002E-13 4.0931E-14 -1.8897E-13 3.6922E-13 2.0115E-11
9.1620E-15 4.0931E-14 1.4476E-13 -1.3912E-13 3.7250E-14 2.4462E-12
-4.6927E-14 -1.8897E-13 -1.3912E-13 2.4647E-13 -1.8021E-13 -1.1059E-11
1.3935E-13 3.6922E-13 3.7250E-14 -1.8021E-13 4.3689E-13 1.9195E-11
5.0024E-12 2.0115E-11 2.4462E-12 -1.1059E-11 1.9195E-11 1.1768E-09
# lat0 lon0 xBary yBary zBary JD0
3.660145 27.969378 0.961345 0.020938 -0.326815 2456514.003748
# Heliocentric elements and errors
Epoch: 2456510.5000 = 2013/08/06
Mean Anomaly: 303.98198 +/- 0.229
Argument of Peri: 230.70145 +/- 0.369
Long of Asc Node: 221.51226 +/- 0.001
Inclination: 13.87085 +/- 0.001
Eccentricity: 0.09860094 +/- 0.0013
Semi-Major Axis: 43.05830995 +/- 0.0104
Time of Perihelion: 2472569.1536 +/- 65.4
Perihelion: 38.81271993 +/- 0.0569
Aphelion: 47.30389997 +/- 0.0573
Period (y) 282.5489 +/- 0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 36.57493573 +/- 0.0010
Ecliptic Y 18.33691680 +/- 0.0005
Ecliptic Z 2.59534029 +/- 0.0001
Ecliptic XDOT -0.00137038 +/- 0.0000
Ecliptic YDOT 0.00229458 +/- 0.0000
Ecliptic ZDOT -0.00064857 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.99639292 +/- 0.0009
Geocenter to KBO 40.65727490 +/- 0.0011
# Hcoef: 8.36
The following table shows the complete astrometric record for 14UJ228. 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 (14UJ228) followed by the observatory code and reference code for the source of the astrometry.
2013 08 09.50297 01 38 30.353 +14 10 00.81 24.4r 14UJ228 568 C~2SDf 2013 08 09.54639 01 38 30.303 +14 10 00.34 24.4r 14UJ228 568 C~2SDf 2013 09 02.42113 01 37 42.004 +14 06 04.20 24.2r 14UJ228 568 C~2SDf 2013 09 02.46447 01 37 41.865 +14 06 03.48 24.6r 14UJ228 568 C~2SDf 2013 09 03.44044 01 37 38.955 +14 05 47.81 24.6r 14UJ228 568 C~2SDf 2013 09 03.48706 01 37 38.816 +14 05 47.09 25.1r 14UJ228 568 C~2SDf 2013 10 08.49991 01 35 19.297 +13 52 10.51 24.4r 14UJ228 568 C~2SDf 2013 10 30.49423 01 33 36.014 +13 41 03.03 23.8r 14UJ228 568 C~2SDf 2013 11 01.49532 01 33 26.829 +13 40 00.63 24.0r 14UJ228 568 C~2SDf 2013 11 28.26999 01 31 39.054 +13 26 54.87 24.2r 14UJ228 568 C~2SDf 2013 12 04.39045 01 31 20.168 +13 24 19.43 24.6r 14UJ228 568 C~2SDf 2014 01 03.31330 01 30 32.535 +13 15 26.33 24.6r 14UJ228 568 C~2SDf 2014 07 26.51805 01 44 20.876 +14 21 08.52 24.5r 14UJ228 568 C~2SDf 2014 07 26.56107 01 44 20.895 +14 21 08.62 24.8r 14UJ228 568 C~2SDf 2014 07 26.60436 01 44 20.901 +14 21 08.77 24.6r 14UJ228 568 C~2SDf 2014 08 24.45388 01 43 55.119 +14 19 29.41 24.4r 14UJ228 568 C~2SDf 2014 08 24.52781 01 43 54.949 +14 19 28.70 24.7r 14UJ228 568 C~2SDf 2014 08 30.43216 01 43 40.854 +14 18 15.29 24.1r 14UJ228 568 C~2SDf 2014 08 30.54047 01 43 40.556 +14 18 13.92 24.9r 14UJ228 568 C~2SDf 2014 09 18.45910 01 42 38.524 +14 12 29.44 24.4r 14UJ228 568 C~2SDf 2014 09 18.50183 01 42 38.360 +14 12 28.49 24.5r 14UJ228 568 C~2SDf 2014 09 23.50010 01 42 18.399 +14 10 32.96 24.4r 14UJ228 568 C~2SDf 2014 10 22.28248 01 40 07.360 +13 57 10.58 24.1r 14UJ228 568 C~2SDf 2014 10 22.32723 01 40 07.149 +13 57 09.32 24.3r 14UJ228 568 C~2SDf 2014 10 22.37167 01 40 06.922 +13 57 07.91 24.6r 14UJ228 568 C~2SDf 2014 10 23.46633 01 40 01.705 +13 56 34.38 24.2r 14UJ228 568 C~2SDf 2014 10 25.48228 01 39 52.146 +13 55 32.75 24.4r 14UJ228 568 C~2SDf 2014 11 20.21348 01 37 58.420 +13 42 35.98 24.5r 14UJ228 568 C~2SDf 2014 11 20.35396 01 37 57.867 +13 42 31.93 24.5r 14UJ228 568 C~2SDf 2014 11 21.25141 01 37 54.385 +13 42 06.26 24.1r 14UJ228 568 C~2SDf 2015 02 18.26839 01 37 39.845 +13 28 42.55 24.5r 14UJ228 568 C~2SDf 2015 12 07.42022 01 42 50.547 +13 46 34.08 24.8w 14UJ228 568 C~2SDf
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 0.16 0.00 0.18
2 0.0001 -0.85 0.02 -0.17 -0.10
3 0.0655 -741.21 -0.03 34.61 -0.06
4 0.0656 -743.36 -0.15 34.67 -0.05
5 0.0683 -788.49 -0.01 35.45 -0.05
6 0.0684 -790.64 0.08 35.51 -0.05
7 0.1643 -2979.54 0.05 14.93 -0.11
8 0.2245 -4624.70 0.03 -55.00 0.28
9 0.2300 -4772.21 -0.09 -63.89 0.13
10 0.3033 -6524.00 -0.02 -215.99 -0.02
11 0.3200 -6837.80 0.13 -258.77 -0.03
12 0.4019 -7681.91 -0.10 -497.30 -0.09
13 0.9610 4996.34 0.01 -1208.68 0.03
14 0.9611 4996.64 0.03 -1208.68 -0.07
15 0.9613 4996.77 -0.10 -1208.57 -0.06
16 1.0402 4611.07 0.07 -1167.71 -0.10
17 1.0405 4608.51 0.03 -1167.49 0.01
18 1.0566 4390.84 0.06 -1162.91 -0.06
19 1.0569 4386.30 0.03 -1162.64 0.08
20 1.1087 3420.56 -0.11 -1161.71 0.02
21 1.1088 3417.99 -0.05 -1161.74 -0.01
22 1.1225 3105.51 -0.01 -1165.55 0.05
23 1.2013 1037.59 -0.01 -1228.47 0.01
24 1.2014 1034.27 0.09 -1228.53 0.07
25 1.2016 1030.68 -0.09 -1228.66 0.08
26 1.2046 947.75 -0.19 -1232.53 -0.01
27 1.2101 795.71 -0.02 -1239.77 0.07
28 1.2805 -1029.69 -0.03 -1364.36 0.08
29 1.2809 -1038.67 0.06 -1365.21 -0.02
30 1.2834 -1095.27 -0.06 -1370.71 -0.15
31 1.5271 -1584.63 0.14 -2042.70 -0.12
32 2.3269 3026.90 0.06 -2676.86 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.
14UJ228 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 43.263 43.286 43.242 ecceobj 0.098 0.101 0.095 incobj 13.849 13.849 13.849 qmin 37.959 37.831 38.039 qmax 48.253 48.343 48.132 amean 42.972 42.988 42.945 amin 42.637 42.646 42.607 amax 43.352 43.348 43.324 emean 0.099 0.102 0.096 emin 0.085 0.089 0.082 emax 0.113 0.116 0.111 imean 15.082 15.083 15.077 imin 14.468 14.472 14.466 imax 15.686 15.680 15.675 excite_mean 0.278 0.280 0.277 fracstop 1.000 1.000 1.000 cjmean 2.996 2.995 2.996 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 181.1 181.4 181.2 kozaiamp 179.9 180.0 180.0