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: 14YD100 # Created Sun Dec 22 02:10:15 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 22 observations of 22 # Arc: 10.00y # First observation: 2014/11/24 # Last observation: 2024/11/24 # Chi-squared of fit: 12.45 DOF: 38 RMS: 0.13 # Min/Max residuals: -0.25 0.25 # Exact a, adot, b, bdot, g, gdot: 2.029291E-05 4.523118E-02 -5.894267E-06 -1.417581E-02 3.600423E-02 -5.441818E-03 # Covariance matrix: 2.2571E-13 -1.7291E-13 -6.2597E-14 4.7079E-14 2.1261E-13 -2.9131E-13 -1.7291E-13 2.1458E-13 8.5101E-14 -6.2666E-14 -3.0519E-13 3.8676E-13 -6.2597E-14 8.5101E-14 1.4362E-13 -4.2942E-14 -1.3806E-13 1.5717E-13 4.7079E-14 -6.2666E-14 -4.2942E-14 2.5851E-14 9.0459E-14 -1.1688E-13 2.1261E-13 -3.0519E-13 -1.3806E-13 9.0459E-14 6.3032E-13 -5.4976E-13 -2.9131E-13 3.8676E-13 1.5717E-13 -1.1688E-13 -5.4976E-13 7.2226E-13 # lat0 lon0 xBary yBary zBary JD0 -19.516501 51.392805 -0.175134 -0.324609 -0.916310 2456985.856878 # Heliocentric elements and errors Epoch: 2456986.5000 = 2014/11/25 Mean Anomaly: 344.82867 +/- 0.007 Argument of Peri: 257.91517 +/- 0.011 Long of Asc Node: 185.56049 +/- 0.000 Inclination: 25.33488 +/- 0.000 Eccentricity: 0.29795557 +/- 0.0001 Semi-Major Axis: 39.70742288 +/- 0.0064 Time of Perihelion: 2460837.9754 +/- 21.3 Perihelion: 27.87637489 +/- 0.0057 Aphelion: 51.53847087 +/- 0.0090 Period (y) 250.2164 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 16.80150505 +/- 0.0004 Ecliptic Y 21.32745159 +/- 0.0004 Ecliptic Z -9.27904474 +/- 0.0002 Ecliptic XDOT -0.00316007 +/- 0.0000 Ecliptic YDOT 0.00155495 +/- 0.0000 Ecliptic ZDOT -0.00087768 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 28.69242405 +/- 0.0004 Geocenter to KBO 27.77461998 +/- 0.0006 # Hcoef: 7.73
The following table shows the complete astrometric record for 14YD100. 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 (14YD100) followed by the observatory code and reference code for the source of the astrometry.
2014 11 24.3561 03 35 53.27 -00 46 30.9 22.7w 14YD100 F51 C~77rr 2014 11 24.37113 03 35 53.16 -00 46 31.3 22.7w 14YD100 F51 C~77rr 2014 11 24.38627 03 35 53.08 -00 46 31.5 22.4w 14YD100 F51 C~77rr 2014 12 18.35636 03 33 26.54 -00 52 18.2 22.6w 14YD100 F51 C~77rr 2014 12 18.36926 03 33 26.49 -00 52 18.1 22.5w 14YD100 F51 C~77rr 2014 12 18.38216 03 33 26.40 -00 52 18.4 22.5w 14YD100 F51 C~77rr 2014 12 18.39513 03 33 26.35 -00 52 18.1 22.7w 14YD100 F51 C~77rr 2015 01 19.2779 03 31 23.97 -00 46 35.3 22.6w 14YD100 F51 C~77rr 2015 01 19.29057 03 31 23.95 -00 46 34.9 22.8w 14YD100 F51 C~77rr 2015 01 19.30309 03 31 23.93 -00 46 34.6 22.4w 14YD100 F51 C~77rr 2017 09 19.59747 04 14 05.39 -00 24 26.9 22.7w 14YD100 F51 C~77rr 2017 09 19.61449 04 14 05.36 -00 24 27.9 22.7w 14YD100 F51 C~77rr 2017 09 19.623 04 14 05.36 -00 24 28.0 22.2w 14YD100 F51 C~77rr 2017 10 01.60449 04 13 40.02 -00 34 59.0 22.4w 14YD100 F51 C~77rr 2017 10 01.6117 04 13 40.01 -00 34 59.5 22.4w 14YD100 F51 C~77rr 2017 10 01.61895 04 13 39.98 -00 34 59.6 22.4w 14YD100 F51 C~77rr 2017 10 01.62616 04 13 39.94 -00 35 00.1 22.4w 14YD100 F51 C~77rr 2017 10 30.51344 04 11 31.26 -00 58 32.5 22.6w 14YD100 F51 C~77rr 2017 10 30.53866 04 11 31.13 -00 58 33.7 22.4w 14YD100 F51 C~77rr 2017 10 30.55128 04 11 31.06 -00 58 34.4 22.5w 14YD100 F51 C~77rr 2024 11 24.430430 05 28 23.063 -02 10 47.01 22.3G 14YD100 G37 C~8STS 2024 11 24.479900 05 28 22.749 -02 10 48.45 14YD100 G37 C~8STS
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 -0.07 0.00 -0.09
2 0.0000 0.00 -0.21 0.00 -0.11
3 0.0001 0.00 0.10 0.00 0.06
4 0.0657 0.00 -0.14 0.00 -0.05
5 0.0657 0.00 0.19 0.00 0.10
6 0.0658 0.00 -0.09 0.00 -0.16
7 0.0658 0.00 0.24 0.00 0.19
8 0.1531 0.00 -0.11 0.00 -0.13
9 0.1531 0.00 -0.01 0.00 -0.03
10 0.1532 0.00 0.08 0.00 -0.04
11 2.8206 0.00 -0.02 0.00 -0.15
12 2.8207 0.00 -0.10 0.00 -0.25
13 2.8207 0.00 0.09 0.00 0.09
14 2.8535 0.00 0.03 0.00 0.07
15 2.8535 0.00 0.21 0.00 -0.06
16 2.8536 0.00 0.08 0.00 0.23
17 2.8536 0.00 -0.19 0.00 0.10
18 2.9327 0.00 -0.21 0.00 0.25
19 2.9327 0.00 0.07 0.00 0.14
20 2.9328 0.00 0.14 0.00 -0.02
21 10.0016 0.00 -0.08 0.00 0.00
22 10.0017 0.00 0.06 0.00 -0.12
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.
14YD100 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.963 39.962 39.963 ecceobj 0.300 0.300 0.300 incobj 25.257 25.257 25.257 qmin 27.130 27.119 27.169 qmax 52.320 52.577 52.329 amean 39.454 39.454 39.454 amin 38.975 38.971 38.995 amax 40.056 40.030 39.994 emean 0.261 0.262 0.261 emin 0.192 0.192 0.193 emax 0.309 0.313 0.309 imean 25.974 25.958 25.988 imin 24.518 24.499 24.556 imax 27.841 27.847 27.837 excite_mean 0.511 0.511 0.511 fracstop 1.000 1.000 1.000 cjmean 2.748 2.749 2.748 libcent 0 179.0 179.7 179.8 libamp 0 100.9 98.8 101.3 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 273.3 273.6 273.3 kozaiamp 46.9 47.7 46.6