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: 16LD106 # Created Tue Apr 1 01:10:49 2025 # Orbit generated from Bernstein formalism # Fitting 15 observations of 15 # Arc: 90.78d # First observation: 2016/03/07 # Last observation: 2016/06/06 Preliminary a, adot, b, bdot, g, gdot: -0.000005 0.024386 0.000003 -0.001587 0.024936 0.000000 # Chi-squared of fit: 7.33 DOF: 24 RMS: 0.12 # Min/Max residuals: -0.19 0.36 # Exact a, adot, b, bdot, g, gdot: 1.596472E-05 2.528688E-02 -1.349254E-06 -1.571281E-03 2.513541E-02 5.368305E-04 # Covariance matrix: 4.8680E-13 1.2813E-11 -6.6935E-14 2.9086E-14 6.7558E-12 8.1360E-10 1.2813E-11 5.0184E-08 -1.1355E-10 8.0673E-10 9.7897E-09 1.7643E-07 -6.6935E-14 -1.1355E-10 4.6889E-13 -2.6937E-12 -2.2685E-11 -4.9893E-10 2.9086E-14 8.0673E-10 -2.6937E-12 2.0399E-11 1.5457E-10 2.3057E-09 6.7558E-12 9.7897E-09 -2.2685E-11 1.5457E-10 1.9704E-09 4.5750E-08 8.1360E-10 1.7643E-07 -4.9893E-10 2.3057E-09 4.5750E-08 2.7447E-06 # lat0 lon0 xBary yBary zBary JD0 10.814235 -152.070420 0.647071 0.140550 -0.735041 2457455.105679 # Heliocentric elements and errors Epoch: 2457450.5000 = 2016/03/03 Mean Anomaly: 7.42733 +/- 70.845 Argument of Peri: 99.27300 +/- 78.471 Long of Asc Node: 99.19938 +/- 0.245 Inclination: 11.13377 +/- 0.015 Eccentricity: 0.04869215 +/- 0.0208 Semi-Major Axis: 42.58328447 +/- 0.5779 Time of Perihelion: 2455356.4496 +/- 19973.8 Perihelion: 40.50981265 +/- 1.0427 Aphelion: 44.65675628 +/- 1.0735 Period (y) 277.8862 +/- 5.66 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -35.49406605 +/- 0.0610 Ecliptic Y -18.08481899 +/- 0.0323 Ecliptic Z 7.46455030 +/- 0.0132 Ecliptic XDOT 0.00121085 +/- 0.0002 Ecliptic YDOT -0.00248246 +/- 0.0001 Ecliptic ZDOT -0.00015713 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.52911193 +/- 0.0554 Geocenter to KBO 39.78450689 +/- 0.0703 # Hcoef: 8.74
The following table shows the complete astrometric record for 16LD106. 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 (16LD106) followed by the observatory code and reference code for the source of the astrometry.
2016 03 07.60489 13 59 08.71 -00 37 20.4 25.0g 16LD106 T09 C~89Tj 2016 03 07.62696 13 59 08.63 -00 37 20.0 25.1g 16LD106 T09 C~89Tj 2016 03 07.64195 13 59 08.60 -00 37 19.4 25.8g 16LD106 T09 C~89Tj 2016 03 16.46294 13 58 38.99 -00 33 05.0 24.7z 16LD106 T09 C~89Tj 2016 03 16.51046 13 58 38.78 -00 33 03.8 24.7z 16LD106 T09 C~89Tj 2016 03 16.53534 13 58 38.69 -00 33 03.0 24.7z 16LD106 T09 C~89Tj 2016 03 16.54079 13 58 38.67 -00 33 02.6 24.8z 16LD106 T09 C~89Tj 2016 03 16.56535 13 58 38.57 -00 33 02.0 24.8z 16LD106 T09 C~89Tj 2016 06 05.36722 13 52 56.92 -00 04 54.0 24.7r 16LD106 T09 C~89Tj 2016 06 05.38217 13 52 56.86 -00 04 53.8 24.7r 16LD106 T09 C~89Tj 2016 06 05.39496 13 52 56.83 -00 04 54.0 24.6r 16LD106 T09 C~89Tj 2016 06 05.41197 13 52 56.78 -00 04 53.8 24.5r 16LD106 T09 C~89Tj 2016 06 06.33647 13 52 53.98 -00 04 50.6 25.6g 16LD106 T09 C~89Tj 2016 06 06.36850 13 52 53.88 -00 04 50.4 25.5g 16LD106 T09 C~89Tj 2016 06 06.38765 13 52 53.82 -00 04 50.6 24.9g 16LD106 T09 C~89Tj
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 -0.01 0.00 0.07
2 0.0001 -1.26 -0.08 -0.05 -0.19
3 0.0001 -1.90 0.10 0.36 0.06
4 0.0243 -507.10 0.36 82.42 0.19
5 0.0244 -510.47 -0.04 82.44 -0.17
6 0.0245 -512.02 -0.03 82.72 -0.09
7 0.0245 -512.44 -0.11 82.98 0.14
8 0.0245 -514.06 -0.19 83.02 -0.02
9 0.2458 -5906.63 0.10 -138.46 -0.05
10 0.2458 -5907.54 -0.14 -138.59 0.01
11 0.2458 -5907.89 0.09 -138.94 -0.16
12 0.2459 -5908.66 0.09 -139.02 -0.01
13 0.2484 -5949.14 -0.03 -150.79 0.09
14 0.2485 -5950.62 -0.09 -151.13 0.18
15 0.2485 -5951.39 -0.01 -151.64 -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.
16LD106 quality flag:1 Type: CLASSICAL SCATEXTD CLASSICAL axisobj 42.092 45.391 40.418 ecceobj 0.037 0.192 0.048 incobj 11.133 11.092 11.177 qmin 37.287 35.691 37.955 qmax 47.957 56.268 43.605 amean 42.330 45.708 40.699 amin 41.916 45.299 40.380 amax 42.761 46.189 41.027 emean 0.054 0.198 0.038 emin 0.018 0.181 0.015 emax 0.122 0.218 0.064 imean 8.702 9.615 7.245 imin 6.776 8.678 5.079 imax 10.153 10.651 10.461 excite_mean 0.163 0.259 0.132 fracstop 1.000 1.000 1.000 cjmean 3.051 3.040 3.044 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 179.7 182.0 182.7 kozaiamp 179.9 179.9 180.0