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: 15RX345 # Created Sun Nov 24 02:10:26 2024 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 4.16y # First observation: 2014/10/02 # Last observation: 2018/11/30 Preliminary a, adot, b, bdot, g, gdot: -0.000062 0.023229 -0.000008 0.003528 0.024383 0.000000 # Chi-squared of fit: 5.78 DOF: 14 RMS: 0.13 # Min/Max residuals: -0.26 0.31 # Exact a, adot, b, bdot, g, gdot: 1.453240E-05 2.313936E-02 1.229535E-06 3.521570E-03 2.428458E-02 -9.511412E-04 # Covariance matrix: 6.6707E-13 -6.3459E-13 3.8372E-14 -7.6474E-14 -4.8545E-13 -5.0852E-12 -6.3459E-13 1.2012E-12 -8.7002E-14 1.7254E-13 1.1550E-12 1.1498E-11 3.8372E-14 -8.7002E-14 4.5299E-13 -1.4659E-13 -8.2222E-14 -8.8601E-13 -7.6474E-14 1.7254E-13 -1.4659E-13 8.6047E-14 1.5079E-13 1.7784E-12 -4.8545E-13 1.1550E-12 -8.2222E-14 1.5079E-13 1.8717E-12 1.0405E-11 -5.0852E-12 1.1498E-11 -8.8601E-13 1.7784E-12 1.0405E-11 1.1789E-10 # lat0 lon0 xBary yBary zBary JD0 -12.861009 22.717070 0.241930 -0.216538 -0.949185 2456932.834898 # Heliocentric elements and errors Epoch: 2456930.5000 = 2014/09/30 Mean Anomaly: 262.18173 +/- 0.217 Argument of Peri: 47.05096 +/- 0.195 Long of Asc Node: 77.65312 +/- 0.002 Inclination: 15.17568 +/- 0.000 Eccentricity: 0.04853413 +/- 0.0004 Semi-Major Axis: 41.75624007 +/- 0.0075 Time of Perihelion: 2483709.7236 +/- 59.0 Perihelion: 39.72963737 +/- 0.0199 Aphelion: 43.78284277 +/- 0.0202 Period (y) 269.8300 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 38.01979872 +/- 0.0021 Ecliptic Y 15.65804059 +/- 0.0009 Ecliptic Z -9.16575784 +/- 0.0005 Ecliptic XDOT -0.00102696 +/- 0.0000 Ecliptic YDOT 0.00239547 +/- 0.0000 Ecliptic ZDOT 0.00041104 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.12707499 +/- 0.0019 Geocenter to KBO 41.17839835 +/- 0.0023 # Hcoef: 7.49
The following table shows the complete astrometric record for 15RX345. 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 (15RX345) followed by the observatory code and reference code for the source of the astrometry.
2014 10 02.33412 01 43 02.518 -03 07 18.56 23.8r 15RX345 W84 C~55Wr 2014 10 02.33683 01 43 02.505 -03 07 19.11 23.1i 15RX345 W84 C~55Wr 2015 09 04.33457 01 49 24.364 -02 13 20.63 22.9i 15RX345 W84 C~55Wr 2015 10 17.21620 01 46 35.008 -02 33 18.16 23.2r 15RX345 W84 C~55Wr 2016 11 07.15230 01 49 33.628 -02 00 15.78 23.0z 15RX345 W84 C~55Wr 2017 10 22.25334 01 55 26.615 -01 14 08.02 24.7r 15RX345 W84 C~55Wr 2017 11 23.15331 01 53 05.264 -01 22 58.40 24.8g 15RX345 W84 C~55Wr 2018 09 09.26961 02 03 01.077 -00 14 02.97 23.7r 15RX345 W84 C~55Wr 2018 11 07.22249 01 58 52.867 -00 38 37.31 23.3r 15RX345 W84 C~55Wr 2018 11 30.12303 01 57 17.784 -00 43 05.93 24.5g 15RX345 W84 C~55Wr
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 0.11 0.00 0.22
2 0.0000 -0.38 -0.08 -0.44 -0.22
3 0.9227 6513.77 -0.05 904.84 0.13
4 1.0401 3711.18 0.06 726.47 -0.02
5 2.0994 6932.71 -0.26 1583.64 -0.08
6 3.0552 12887.70 0.31 2204.97 -0.03
7 3.1426 10714.78 0.03 2494.52 -0.16
8 3.9369 20606.27 -0.07 3041.94 -0.03
9 4.0983 16568.87 -0.09 3045.89 0.10
10 4.1610 15135.97 0.02 3323.27 0.08
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.
15RX345 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.088 42.109 42.068 ecceobj 0.045 0.045 0.044 incobj 15.173 15.174 15.173 qmin 38.892 38.874 38.943 qmax 44.966 44.969 44.852 amean 41.833 41.853 41.812 amin 41.515 41.528 41.492 amax 42.162 42.182 42.150 emean 0.051 0.052 0.050 emin 0.036 0.036 0.036 emax 0.067 0.067 0.065 imean 13.388 13.395 13.376 imin 12.579 12.583 12.565 imax 14.176 14.176 14.174 excite_mean 0.237 0.237 0.237 fracstop 1.000 1.000 1.000 cjmean 3.010 3.010 3.010 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 176.4 176.8 177.2 kozaiamp 179.9 180.0 180.0