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: 14SD350 # Created Sun Nov 24 02:09:58 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 18 observations of 18 # Arc: 8.10y # First observation: 2014/07/21 # Last observation: 2022/08/27 # Chi-squared of fit: 15.11 DOF: 30 RMS: 0.16 # Min/Max residuals: -0.34 0.43 # Exact a, adot, b, bdot, g, gdot: 1.399001E-05 1.767828E-02 8.241061E-06 9.681906E-03 2.110042E-02 -6.415457E-03 # Covariance matrix: 4.3738E-13 7.0899E-15 -2.5143E-14 2.3408E-14 3.4908E-13 2.5279E-13 7.0899E-15 1.2134E-13 -2.1845E-14 7.0221E-14 6.9211E-14 8.7589E-13 -2.5143E-14 -2.1845E-14 1.3226E-13 -3.2325E-14 -3.5475E-14 -1.7231E-13 2.3408E-14 7.0221E-14 -3.2325E-14 5.1431E-14 5.1233E-14 5.4317E-13 3.4908E-13 6.9211E-14 -3.5475E-14 5.1233E-14 4.0709E-13 5.9618E-13 2.5279E-13 8.7589E-13 -1.7231E-13 5.4317E-13 5.9618E-13 6.7678E-12 # lat0 lon0 xBary yBary zBary JD0 -16.968352 -30.422065 0.528650 -0.253985 -0.832739 2456859.780604 # Heliocentric elements and errors Epoch: 2456860.5000 = 2014/07/22 Mean Anomaly: 323.76303 +/- 0.012 Argument of Peri: 41.94085 +/- 0.015 Long of Asc Node: 356.51664 +/- 0.000 Inclination: 32.87511 +/- 0.000 Eccentricity: 0.37688676 +/- 0.0001 Semi-Major Axis: 62.10869330 +/- 0.0127 Time of Perihelion: 2474856.5157 +/- 49.6 Perihelion: 38.70074904 +/- 0.0122 Aphelion: 85.51663755 +/- 0.0198 Period (y) 489.4821 +/- 0.15 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 39.56964017 +/- 0.0012 Ecliptic Y -23.84775561 +/- 0.0007 Ecliptic Z -13.83077406 +/- 0.0004 Ecliptic XDOT 0.00078606 +/- 0.0000 Ecliptic YDOT 0.00219148 +/- 0.0000 Ecliptic ZDOT 0.00144463 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 48.22638944 +/- 0.0010 Geocenter to KBO 47.39267821 +/- 0.0014 # Hcoef: 7.02
The following table shows the complete astrometric record for 14SD350. 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 (14SD350) followed by the observatory code and reference code for the source of the astrometry.
2014 07 21.279826 22 33 11.30 -27 24 49.6 14SD350 W84 C~4qPY 2014 07 21.284190 22 33 11.28 -27 24 49.5 14SD350 W84 C~4qPY 2014 07 21.299433 22 33 11.26 -27 24 50.2 14SD350 W84 C~4qPY 2014 09 22.05418 22 28 36.955 -27 43 57.45 24.0r 14SD350 807 C~1x8l 2014 09 22.05419 22 28 36.96 -27 43 57.7 24.0V 14SD350 W84 C~2JA3 2014 09 22.12365 22 28 36.642 -27 43 57.80 14SD350 807 C~1x8l 2014 09 22.12366 22 28 36.66 -27 43 58.1 14SD350 W84 C~2JA3 2014 09 22.21571 22 28 36.250 -27 43 58.05 14SD350 807 C~1x8l 2014 09 22.21572 22 28 36.27 -27 43 58.6 14SD350 W84 C~2JA3 2014 10 25.05002 22 26 45.632 -27 41 34.40 14SD350 304 C~1x8l 2014 10 26.00859 22 26 43.444 -27 41 20.45 14SD350 304 C~1x8l 2014 11 19.03710 22 26 14.179 -27 32 45.08 14SD350 304 C~1x8l 2014 11 19.11554 22 26 14.161 -27 32 42.97 14SD350 304 C~1x8l 2019 09 30.159967 22 44 15.30 -23 03 44.2 14SD350 W84 C~5nIG 2019 09 30.166966 22 44 15.27 -23 03 44.1 14SD350 W84 C~5nIG 2022 08 27.237040 22 56 28.974 -19 53 55.76 23.1G 14SD350 G37 C~5nIG 2022 08 27.283940 22 56 28.758 -19 53 56.73 14SD350 G37 C~5nIG 2022 08 27.330710 22 56 28.544 -19 53 57.74 14SD350 G37 C~5nIG
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 -0.25
2 0.0000 0.00 -0.14 0.00 -0.03
3 0.0001 0.00 0.39 0.00 -0.34
4 0.1719 0.00 0.02 0.00 0.19
5 0.1719 0.00 0.10 0.00 -0.06
6 0.1721 0.00 -0.18 0.00 0.21
7 0.1721 0.00 0.09 0.00 -0.09
8 0.1723 0.00 -0.12 0.00 0.43
9 0.1723 0.00 0.18 0.00 -0.12
10 0.2622 0.00 0.29 0.00 -0.01
11 0.2648 0.00 -0.12 0.00 0.10
12 0.3306 0.00 -0.16 0.00 0.06
13 0.3308 0.00 -0.16 0.00 -0.03
14 5.1934 0.00 -0.02 0.00 -0.07
15 5.1934 0.00 -0.03 0.00 0.07
16 8.1012 0.00 -0.01 0.00 -0.03
17 8.1013 0.00 -0.01 0.00 0.01
18 8.1014 0.00 0.02 0.00 -0.01
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.
14SD350 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 62.621 62.620 62.621 ecceobj 0.381 0.381 0.381 incobj 32.767 32.767 32.767 qmin 37.801 37.817 37.793 qmax 89.048 88.877 89.083 amean 62.628 62.639 62.635 amin 61.744 61.736 61.750 amax 63.729 63.707 63.744 emean 0.366 0.372 0.366 emin 0.339 0.354 0.338 emax 0.397 0.396 0.398 imean 33.838 33.614 33.830 imin 32.940 32.955 32.929 imax 34.570 34.057 34.578 excite_mean 0.666 0.667 0.666 fracstop 1.000 1.000 1.000 cjmean 2.711 2.710 2.711 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 200.5 195.0 202.8 kozaiamp 180.0 151.1 180.0