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: 14YC92 # Created Wed Apr 17 01:16:48 2024 # Orbit generated from Bernstein formalism # Fitting 13 observations of 13 # Arc: 3.84y # First observation: 2014/12/16 # Last observation: 2018/10/18 Preliminary a, adot, b, bdot, g, gdot: 0.000063 0.008030 -0.000012 0.000451 0.013683 0.000000 # Chi-squared of fit: 3.40 DOF: 20 RMS: 0.09 # Min/Max residuals: -0.20 0.17 # Exact a, adot, b, bdot, g, gdot: 8.572465E-06 8.157134E-03 6.165677E-07 4.477207E-04 1.369497E-02 4.446916E-03 # Covariance matrix: 4.1278E-13 -3.4174E-13 3.1199E-15 -5.8815E-15 -2.0035E-13 -6.8657E-12 -3.4174E-13 5.3691E-13 1.2593E-15 3.3921E-16 1.9618E-13 1.2842E-11 3.1199E-15 1.2593E-15 2.8975E-13 -1.0889E-13 -5.2613E-14 -2.0073E-13 -5.8815E-15 3.3921E-16 -1.0889E-13 6.9191E-14 8.1107E-14 3.6728E-13 -2.0035E-13 1.9618E-13 -5.2613E-14 8.1107E-14 1.5327E-12 1.1753E-11 -6.8657E-12 1.2842E-11 -2.0073E-13 3.6728E-13 1.1753E-11 3.7763E-10 # lat0 lon0 xBary yBary zBary JD0 -32.035886 29.166117 -0.801729 -0.302096 -0.483162 2457007.699858 # Heliocentric elements and errors Epoch: 2457000.5000 = 2014/12/09 Mean Anomaly: 79.25065 +/- 0.303 Argument of Peri: 141.57604 +/- 0.121 Long of Asc Node: 113.62967 +/- 0.004 Inclination: 31.95333 +/- 0.000 Eccentricity: 0.50266043 +/- 0.0011 Semi-Major Axis: 64.16674076 +/- 0.0942 Time of Perihelion: 2415670.6607 +/- 128.9 Perihelion: 31.91265906 +/- 0.0859 Aphelion: 96.42082247 +/- 0.1587 Period (y) 514.0119 +/- 1.13 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 54.15534448 +/- 0.0049 Ecliptic Y 31.14572664 +/- 0.0027 Ecliptic Z -38.73323674 +/- 0.0035 Ecliptic XDOT -0.00009927 +/- 0.0000 Ecliptic YDOT 0.00180926 +/- 0.0000 Ecliptic ZDOT -0.00039560 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 73.50592664 +/- 0.0042 Geocenter to KBO 73.01948492 +/- 0.0066 # Hcoef: 4.94
The following table shows the complete astrometric record for 14YC92. 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 (14YC92) followed by the observatory code and reference code for the source of the astrometry.
2014 12 16.19908 02 34 13.985 -18 48 17.38 23.6r 14YC92 W84 C~55TQ 2014 12 24.17436 02 33 58.462 -18 46 30.04 24.1g 14YC92 W84 C~55TQ 2014 12 24.17712 02 33 58.458 -18 46 29.92 23.6i 14YC92 W84 C~55TQ 2015 11 15.28654 02 37 22.098 -18 38 18.76 23.1r 14YC92 W84 C~55TQ 2015 11 15.28792 02 37 22.089 -18 38 18.83 24.0g 14YC92 W84 C~55TQ 2015 12 17.16110 02 35 59.510 -18 36 31.29 23.5r 14YC92 W84 C~55TQ 2016 02 06.05231 02 35 16.854 -18 17 49.28 23.8r 14YC92 W84 C~55TQ 2016 11 05.29491 02 39 35.165 -18 25 28.19 23.9r 14YC92 W84 C~55TQ 2016 11 05.29767 02 39 35.155 -18 25 28.16 23.8g 14YC92 W84 C~55TQ 2017 12 10.17947 02 39 44.058 -18 14 23.59 23.9r 14YC92 W84 C~55TQ 2017 12 10.18085 02 39 44.055 -18 14 23.32 24.4g 14YC92 W84 C~55TQ 2018 10 18.34272 02 43 56.123 -17 57 48.82 23.5r 14YC92 W84 C~55TQ 2018 10 18.34410 02 43 56.143 -17 57 48.69 23.7g 14YC92 W84 C~55TQ
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 0.17 0.00 -0.02
2 0.0218 -165.71 -0.08 180.71 -0.10
3 0.0218 -165.72 -0.04 180.84 -0.03
4 0.9147 2704.86 -0.00 -429.69 0.04
5 0.9147 2704.72 -0.09 -429.70 0.00
6 1.0019 1653.93 -0.01 104.68 0.08
7 1.1413 1503.51 -0.09 1371.49 -0.02
8 1.8894 4748.89 0.08 -419.43 0.06
9 1.8894 4748.77 0.08 -419.35 0.12
10 2.9842 5115.06 -0.05 149.77 -0.15
11 2.9842 5115.12 0.05 150.04 0.09
12 3.8389 8823.22 -0.20 -282.71 -0.04
13 3.8389 8823.54 0.17 -282.70 -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.
14YC92 quality flag:2 Type: SCATNEAR CENTAURS SCATNEAR axisobj 64.821 65.104 64.546 ecceobj 0.500 0.503 0.497 incobj 31.960 31.960 31.961 qmin 30.284 28.750 30.409 qmax 103.010 110.984 98.804 amean 65.588 66.701 63.816 amin 63.398 63.944 62.611 amax 67.779 71.033 65.728 emean 0.511 0.536 0.499 emin 0.481 0.487 0.474 emax 0.540 0.580 0.521 imean 30.327 29.075 30.313 imin 28.881 26.796 29.202 imax 31.754 31.353 31.451 excite_mean 0.719 0.724 0.710 fracstop 1.000 1.000 1.000 cjmean 2.650 2.646 2.650 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 173.6 191.7 178.2 kozaiamp 179.9 180.0 179.9