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: 16EB369 # Created Wed Nov 27 02:10:35 2024 # Orbit generated from Bernstein formalism # Fitting 16 observations of 16 # Arc: 8.00d # First observation: 2016/03/04 # Last observation: 2016/03/12 Preliminary a, adot, b, bdot, g, gdot: -0.000000 0.027236 0.000000 0.000264 0.024229 0.000000 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING Fitting with energy constraint # Chi-squared of fit: 4.46 DOF: 27 RMS: 0.09 # Min/Max residuals: -0.22 0.15 # Exact a, adot, b, bdot, g, gdot: 1.563446E-05 2.375736E-02 3.335101E-07 6.930532E-04 2.365189E-02 -1.921869E-03 # Covariance matrix: 5.2921E-12 6.7728E-09 -2.2875E-13 -8.2819E-10 1.1711E-09 -8.2720E-09 6.7728E-09 9.1818E-06 -3.0600E-10 -1.1205E-06 1.5823E-06 -1.5298E-05 -2.2875E-13 -3.0600E-10 2.6571E-13 2.2609E-11 -5.2912E-11 1.0030E-10 -8.2819E-10 -1.1205E-06 2.2609E-11 1.3808E-07 -1.9310E-07 1.9049E-06 1.1711E-09 1.5823E-06 -5.2912E-11 -1.9310E-07 2.7280E-07 -2.4280E-06 -8.2720E-09 -1.5298E-05 1.0030E-10 1.9049E-06 -2.4280E-06 5.2075E-04 # lat0 lon0 xBary yBary zBary JD0 -16.034743 143.273089 -0.345754 -0.255663 -0.890190 2457451.787179 # Heliocentric elements and errors Epoch: 2457450.5000 = 2016/03/03 Mean Anomaly: 332.06117 +/- 242.424 Argument of Peri: 312.97360 +/- 344.601 Long of Asc Node: 227.12175 +/- 3.935 Inclination: 15.79451 +/- 0.127 Eccentricity: 0.13743157 +/- 0.7064 Semi-Major Axis: 48.86120260 +/- 15.7532 Time of Perihelion: 2467132.1718 +/- 83876.9 Perihelion: 42.14613060 +/- 37.0925 Aphelion: 55.57627460 +/- 38.8880 Period (y) 341.5501 +/- 165.18 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -33.52199334 +/- 0.7192 Ecliptic Y 24.57415828 +/- 0.5367 Ecliptic Z -11.67856460 +/- 0.2579 Ecliptic XDOT -0.00149110 +/- 0.0020 Ecliptic YDOT -0.00232575 +/- 0.0016 Ecliptic ZDOT 0.00013857 +/- 0.0007 # Distances at JD0 (AU) Heliocenter to KBO 43.17409135 +/- 0.6403 Geocenter to KBO 42.27992023 +/- 0.9337 # Hcoef: 7.50
The following table shows the complete astrometric record for 16EB369. 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 (16EB369) followed by the observatory code and reference code for the source of the astrometry.
2016 03 04.28639 09 21 36.78 -01 25 18.0 23.4i 16EB369 T09 C~8Djl 2016 03 04.29992 09 21 36.72 -01 25 17.6 23.3i 16EB369 T09 C~8Djl 2016 03 04.31348 09 21 36.67 -01 25 17.1 23.3i 16EB369 T09 C~8Djl 2016 03 04.32535 09 21 36.61 -01 25 17.0 23.2i 16EB369 T09 C~8Djl 2016 03 07.24417 09 21 25.12 -01 23 51.4 24.7g 16EB369 T09 C~8Djl 2016 03 07.26536 09 21 25.03 -01 23 50.9 25.3g 16EB369 T09 C~8Djl 2016 03 07.27594 09 21 24.98 -01 23 50.6 24.5g 16EB369 T09 C~8Djl 2016 03 09.24370 09 21 17.44 -01 22 52.3 24.0r 16EB369 T09 C~8Djl 2016 03 09.25448 09 21 17.42 -01 22 52.0 24.1r 16EB369 T09 C~8Djl 2016 03 09.27589 09 21 17.33 -01 22 51.3 23.9r 16EB369 T09 C~8Djl 2016 03 09.28668 09 21 17.29 -01 22 51.1 24.3r 16EB369 T09 C~8Djl 2016 03 12.24434 09 21 06.34 -01 21 22.4 23.4z 16EB369 T09 C~8Djl 2016 03 12.25513 09 21 06.29 -01 21 22.1 23.5z 16EB369 T09 C~8Djl 2016 03 12.26590 09 21 06.25 -01 21 21.6 23.3z 16EB369 T09 C~8Djl 2016 03 12.27673 09 21 06.20 -01 21 21.2 23.2z 16EB369 T09 C~8Djl 2016 03 12.28756 09 21 06.18 -01 21 21.0 23.3z 16EB369 T09 C~8Djl
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 0.05 0.00 0.03
2 0.0000 -0.98 -0.02 0.09 0.01
3 0.0001 -1.85 0.02 0.33 0.14
4 0.0001 -2.74 -0.06 0.13 -0.15
5 0.0081 -193.34 0.06 26.31 0.15
6 0.0082 -194.77 0.01 26.36 -0.00
7 0.0082 -195.58 -0.10 26.40 -0.05
8 0.0136 -321.34 -0.17 45.60 -0.11
9 0.0136 -321.72 0.14 45.79 -0.02
10 0.0137 -323.22 0.02 46.02 -0.00
11 0.0137 -323.85 0.08 46.02 -0.11
12 0.0218 -507.77 0.14 77.71 -0.02
13 0.0218 -508.58 0.00 77.76 -0.10
14 0.0218 -509.30 -0.06 78.04 0.07
15 0.0219 -510.14 -0.22 78.18 0.09
16 0.0219 -510.49 0.10 78.27 0.07
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.