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: 14XT54 # Created Thu Apr 25 01:16:46 2024 # Orbit generated from Bernstein formalism # Fitting 19 observations of 19 # Arc: 3.96y # First observation: 2014/12/15 # Last observation: 2018/11/30 Preliminary a, adot, b, bdot, g, gdot: 0.000005 0.017413 0.000105 0.004878 0.022263 0.000000 # Chi-squared of fit: 7.61 DOF: 32 RMS: 0.11 # Min/Max residuals: -0.26 0.30 # Exact a, adot, b, bdot, g, gdot: 1.282734E-05 1.737417E-02 2.920835E-06 4.848217E-03 2.161112E-02 1.201374E-03 # Covariance matrix: 4.2512E-13 -4.1006E-13 -4.2849E-15 -6.9347E-14 -2.7023E-13 -4.8940E-12 -4.1006E-13 6.8862E-13 -6.6729E-14 1.2673E-13 1.8637E-13 9.4862E-12 -4.2849E-15 -6.6729E-14 2.6345E-13 -9.9861E-14 1.3921E-13 -9.0705E-13 -6.9347E-14 1.2673E-13 -9.9861E-14 8.3282E-14 5.9924E-14 1.9173E-12 -2.7023E-13 1.8637E-13 1.3921E-13 5.9924E-14 7.9231E-13 3.2425E-12 -4.8940E-12 9.4862E-12 -9.0705E-13 1.9173E-12 3.2425E-12 1.4277E-10 # lat0 lon0 xBary yBary zBary JD0 -34.589218 -1.931461 -0.979315 -0.052793 -0.076905 2457006.585778 # Heliocentric elements and errors Epoch: 2457000.5000 = 2014/12/09 Mean Anomaly: 150.32850 +/- 0.151 Argument of Peri: 132.69999 +/- 0.147 Long of Asc Node: 62.04724 +/- 0.001 Inclination: 37.78509 +/- 0.000 Eccentricity: 0.20104727 +/- 0.0002 Semi-Major Axis: 39.20330320 +/- 0.0059 Time of Perihelion: 2419561.7577 +/- 36.6 Perihelion: 31.32158607 +/- 0.0089 Aphelion: 47.08502034 +/- 0.0103 Period (y) 245.4665 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 38.19541861 +/- 0.0016 Ecliptic Y -0.30675342 +/- 0.0000 Ecliptic Z -26.26831713 +/- 0.0011 Ecliptic XDOT 0.00054381 +/- 0.0000 Ecliptic YDOT 0.00217872 +/- 0.0000 Ecliptic ZDOT 0.00041934 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 46.35740054 +/- 0.0014 Geocenter to KBO 46.27247515 +/- 0.0019 # Hcoef: 7.00
The following table shows the complete astrometric record for 14XT54. 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 (14XT54) followed by the observatory code and reference code for the source of the astrometry.
2014 12 15.08500 00 54 44.618 -32 07 57.55 23.2r 14XT54 W84 C~55TM 2014 12 16.10095 00 54 43.141 -32 07 14.02 24.2g 14XT54 W84 C~55TM 2014 12 24.07406 00 54 34.799 -32 01 07.66 24.1i 14XT54 W84 C~55TM 2015 10 18.14739 01 01 48.868 -31 42 07.55 23.7r 14XT54 W84 C~55TM 2015 10 18.14875 01 01 48.852 -31 42 07.41 24.6g 14XT54 W84 C~55TM 2015 11 05.12861 01 00 22.719 -31 42 19.91 23.7i 14XT54 W84 C~55TM 2015 11 05.12998 01 00 22.740 -31 42 19.82 24.4g 14XT54 W84 C~55TM 2015 11 08.10429 01 00 09.612 -31 41 52.97 23.6r 14XT54 W84 C~55TM 2015 11 08.10568 01 00 09.599 -31 41 52.92 23.1i 14XT54 W84 C~55TM 2015 11 08.10706 01 00 09.590 -31 41 52.91 24.0g 14XT54 W84 C~55TM 2016 10 21.14618 01 04 57.641 -30 58 35.62 23.3r 14XT54 W84 C~55TN 2016 11 05.24367 01 03 46.318 -30 58 28.51 23.7i 14XT54 W84 C~55TN 2016 12 20.12933 01 01 32.051 -30 38 13.21 23.6r 14XT54 W84 C~55TN 2017 09 25.23606 01 10 30.292 -30 06 25.98 23.9r 14XT54 W84 C~55TN 2017 10 20.29711 01 08 26.678 -30 14 12.71 23.1r 14XT54 W84 C~55TN 2017 10 20.29848 01 08 26.681 -30 14 12.35 24.1g 14XT54 W84 C~55TN 2017 12 11.15999 01 05 08.945 -30 01 11.34 23.6r 14XT54 W84 C~55TN 2017 12 11.16137 01 05 08.934 -30 01 11.01 24.3g 14XT54 W84 C~55TN 2018 11 30.19328 01 08 57.063 -29 23 27.61 23.7r 14XT54 W84 C~55TN
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 0.13
2 0.0028 3.87 0.06 47.24 -0.19
3 0.0246 82.16 -0.10 420.52 -0.05
4 0.8407 5488.59 -0.04 -1212.49 -0.14
5 0.8407 5488.48 -0.06 -1212.27 0.05
6 0.8899 4518.96 -0.14 -692.80 0.14
7 0.8899 4519.24 0.20 -692.85 0.04
8 0.8981 4385.17 0.08 -588.74 -0.00
9 0.8981 4385.05 0.02 -588.62 0.07
10 0.8981 4384.95 -0.02 -588.55 0.09
11 1.8510 8876.87 -0.11 -108.06 -0.06
12 1.8923 8078.75 0.05 346.84 0.04
13 2.0152 7154.99 0.16 2250.20 -0.14
14 2.7793 14176.99 -0.01 483.39 -0.02
15 2.8479 12547.95 -0.12 878.67 -0.26
16 2.8479 12548.16 0.17 878.96 -0.00
17 2.9899 10696.50 -0.09 2826.62 0.00
18 2.9899 10696.53 -0.04 2826.98 0.30
19 3.9592 14413.13 0.00 3330.86 -0.00
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.
14XT54 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.452 39.471 39.434 ecceobj 0.194 0.194 0.194 incobj 37.772 37.772 37.772 qmin 23.871 23.593 28.370 qmax 55.599 55.925 51.217 amean 39.453 39.453 39.453 amin 39.056 39.067 39.050 amax 39.987 39.945 39.931 emean 0.283 0.290 0.219 emin 0.156 0.145 0.142 emax 0.393 0.400 0.283 imean 34.775 34.470 36.143 imin 31.602 30.989 35.031 imax 37.321 37.407 37.280 excite_mean 0.640 0.639 0.630 fracstop 1.000 1.000 1.000 cjmean 2.563 2.564 2.566 libcent 0 180.9 180.6 178.4 libamp 0 74.8 64.8 86.0 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 229.8 78.2 178.4 kozaiamp 180.0 85.5 180.0