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: 14US277 # Created Wed Dec 25 02:10:05 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 26 observations of 26 # Arc: 13.15y # First observation: 2008/10/06 # Last observation: 2021/12/01 # Chi-squared of fit: 14.98 DOF: 46 RMS: 0.13 # Min/Max residuals: -0.25 0.45 # Exact a, adot, b, bdot, g, gdot: 1.073714E-05 8.283324E-03 -2.539319E-06 -1.401482E-03 1.229789E-02 -3.874891E-03 # Covariance matrix: 2.3248E-13 -4.8863E-15 -7.8375E-15 -2.8593E-15 1.9132E-13 7.7287E-14 -4.8863E-15 2.8968E-14 1.1665E-15 -4.6815E-15 2.9784E-14 3.2802E-13 -7.8375E-15 1.1665E-15 1.0327E-13 -1.1497E-14 -1.0335E-14 1.4926E-14 -2.8593E-15 -4.6815E-15 -1.1497E-14 3.7009E-15 -7.7660E-15 -5.8713E-14 1.9132E-13 2.9784E-14 -1.0335E-14 -7.7660E-15 2.9787E-13 3.6755E-13 7.7287E-14 3.2802E-13 1.4926E-14 -5.8713E-14 3.6755E-13 4.1182E-12 # lat0 lon0 xBary yBary zBary JD0 -35.616045 37.245809 0.396036 -0.534136 -0.745711 2454746.122871 # Heliocentric elements and errors Epoch: 2454746.5000 = 2008/10/07 Mean Anomaly: 316.23895 +/- 0.026 Argument of Peri: 351.58362 +/- 0.016 Long of Asc Node: 143.16965 +/- 0.001 Inclination: 36.35372 +/- 0.000 Eccentricity: 0.45025774 +/- 0.0002 Semi-Major Axis: 99.04490602 +/- 0.0360 Time of Perihelion: 2498511.9938 +/- 174.5 Perihelion: 54.44917002 +/- 0.0315 Aphelion: 143.64064202 +/- 0.0577 Period (y) 985.7265 +/- 0.54 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 53.59258339 +/- 0.0024 Ecliptic Y 40.24418487 +/- 0.0018 Ecliptic Z -47.35387206 +/- 0.0021 Ecliptic XDOT -0.00181296 +/- 0.0000 Ecliptic YDOT 0.00093576 +/- 0.0000 Ecliptic ZDOT 0.00024861 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 82.06226568 +/- 0.0021 Geocenter to KBO 81.31517156 +/- 0.0036 # Hcoef: 4.56
The following table shows the complete astrometric record for 14US277. 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 (14US277) followed by the observatory code and reference code for the source of the astrometry.
2008 10 06.622117 03 06 11.32 -19 47 25.9 23.4z 14US277 568 C~5Lim 2008 10 06.627629 03 06 11.31 -19 47 26.3 23.5z 14US277 568 C~5Lim 2008 11 02.512931 03 05 05.85 -19 55 15.4 23.6i 14US277 568 C~5Lim 2008 11 02.519255 03 05 05.85 -19 55 15.5 23.6i 14US277 568 C~5Lim 2008 11 06.423780 03 04 55.48 -19 55 59.7 24.4g 14US277 568 C~5Lim 2008 11 06.430829 03 04 55.45 -19 55 59.8 24.4g 14US277 568 C~5Lim 2008 11 18.399454 03 04 23.51 -19 57 32.0 23.4r 14US277 568 C~5Lim 2008 11 18.408055 03 04 23.48 -19 57 32.0 23.4r 14US277 568 C~5Lim 2008 11 18.416702 03 04 23.45 -19 57 32.1 23.5r 14US277 568 C~5Lim 2008 11 18.443649 03 04 23.38 -19 57 32.1 23.4r 14US277 568 C~5Lim 2008 12 23.357570 03 03 01.84 -19 55 19.8 24.1g 14US277 568 C~5Lim 2008 12 23.377306 03 03 01.79 -19 55 19.5 23.6r 14US277 568 C~5Lim 2008 12 23.416296 03 03 01.72 -19 55 19.1 23.6i 14US277 568 C~5Lim 2008 12 23.422790 03 03 01.72 -19 55 19.1 23.6z 14US277 568 C~5Lim 2014 10 28.36123 03 17 42.578 -19 21 38.99 23.2i 14US277 W84 C~55Sh 2014 11 21.29518 03 16 37.800 -19 25 45.27 23.8r 14US277 W84 C~55Sh 2014 12 22.17438 03 15 21.848 -19 24 05.81 23.6r 14US277 W84 C~55Sh 2015 11 15.31156 03 19 01.059 -19 19 23.89 23.7r 14US277 W84 C~55Sh 2016 11 22.22813 03 20 46.858 -19 14 19.38 22.9i 14US277 W84 C~55Sh 2017 02 16.04332 03 18 45.302 -18 52 22.99 23.3i 14US277 W84 C~55Sh 2018 02 09.07506 03 20 47.976 -18 49 52.70 23.3i 14US277 W84 C~55Sh 2018 10 18.324632 03 26 37.46 -18 54 38.5 23.3r 14US277 W84 C~5Lim 2018 10 18.326006 03 26 37.47 -18 54 38.4 23.3i 14US277 W84 C~5Lim 2018 10 18.327369 03 26 37.45 -18 54 38.5 24.2g 14US277 W84 C~5Lim 2021 12 01.228120 03 31 09.834 -18 43 00.16 23.4G 14US277 G37 C~5J6X 2021 12 01.327150 03 31 09.569 -18 43 00.89 14US277 G37 C~5J6X
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 0.14
2 0.0000 0.00 -0.04 0.00 -0.14
3 0.0736 0.00 -0.15 0.00 -0.01
4 0.0736 0.00 0.11 0.00 -0.03
5 0.0843 0.00 0.19 0.00 0.10
6 0.0843 0.00 0.03 0.00 0.08
7 0.1171 0.00 0.07 0.00 -0.00
8 0.1171 0.00 -0.04 0.00 0.04
9 0.1172 0.00 -0.14 0.00 -0.02
10 0.1172 0.00 -0.10 0.00 0.11
11 0.2128 0.00 0.10 0.00 -0.00
12 0.2129 0.00 -0.09 0.00 0.05
13 0.2130 0.00 -0.04 0.00 -0.03
14 0.2130 0.00 0.15 0.00 -0.11
15 6.0581 0.00 0.03 0.00 -0.16
16 6.1237 0.00 -0.20 0.00 -0.01
17 6.2082 0.00 0.32 0.00 -0.25
18 7.1066 0.00 -0.08 0.00 0.08
19 8.1276 0.00 0.00 0.00 0.04
20 8.3625 0.00 0.07 0.00 -0.07
21 9.3428 0.00 -0.20 0.00 0.14
22 10.0307 0.00 0.05 0.00 -0.12
23 10.0307 0.00 0.25 0.00 0.00
24 10.0307 0.00 -0.00 0.00 -0.07
25 13.1516 0.00 -0.13 0.00 0.45
26 13.1518 0.00 0.01 0.00 -0.24
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.
14US277 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 100.788 100.787 100.789 ecceobj 0.454 0.454 0.454 incobj 36.356 36.356 36.356 qmin 52.505 52.408 52.357 qmax 148.512 148.833 148.911 amean 99.411 99.407 99.408 amin 97.952 97.912 97.902 amax 101.302 101.300 101.306 emean 0.453 0.453 0.454 emin 0.442 0.442 0.442 emax 0.469 0.471 0.470 imean 35.014 35.018 34.999 imin 34.429 34.446 34.343 imax 35.378 35.378 35.379 excite_mean 0.731 0.731 0.731 fracstop 1.000 1.000 1.000 cjmean 2.956 2.956 2.956 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 76.0 76.2 76.0 kozaiamp 180.0 180.0 180.0