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: 16AQ394 # Created Sun Dec 22 02:10:39 2024 # Orbit generated from Bernstein formalism # Fitting 17 observations of 17 # Arc: 3.96y # First observation: 2015/03/22 # Last observation: 2019/03/08 Preliminary a, adot, b, bdot, g, gdot: 0.000447 0.020934 -0.000044 0.004971 0.022703 0.000000 # Chi-squared of fit: 4.78 DOF: 28 RMS: 0.09 # Min/Max residuals: -0.17 0.27 # Exact a, adot, b, bdot, g, gdot: 1.435425E-05 2.088378E-02 3.489503E-06 4.951255E-03 2.337387E-02 1.797835E-04 # Covariance matrix: 1.1785E-12 -1.0965E-12 1.6664E-13 -2.0107E-13 -3.2087E-13 -9.4464E-12 -1.0965E-12 2.1027E-12 -3.5148E-13 4.4566E-13 -1.7653E-15 2.1214E-11 1.6664E-13 -3.5148E-13 4.4155E-13 -2.4498E-13 -3.1122E-15 -3.7100E-12 -2.0107E-13 4.4566E-13 -2.4498E-13 1.9409E-13 -4.9836E-15 4.7145E-12 -3.2087E-13 -1.7653E-15 -3.1122E-15 -4.9836E-15 2.8103E-13 -3.4641E-13 -9.4464E-12 2.1214E-11 -3.7100E-12 4.7145E-12 -3.4641E-13 2.2454E-10 # lat0 lon0 xBary yBary zBary JD0 -13.573617 139.331371 -0.664090 -0.173228 -0.718028 2457103.928455 # Heliocentric elements and errors Epoch: 2457100.5000 = 2015/03/19 Mean Anomaly: 158.90148 +/- 0.538 Argument of Peri: 152.97995 +/- 0.534 Long of Asc Node: 184.08297 +/- 0.002 Inclination: 18.89920 +/- 0.001 Eccentricity: 0.07006550 +/- 0.0001 Semi-Major Axis: 40.81687438 +/- 0.0063 Time of Perihelion: 2415058.4898 +/- 142.0 Perihelion: 37.95701979 +/- 0.0076 Aphelion: 43.67672897 +/- 0.0083 Period (y) 260.7761 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -32.54060653 +/- 0.0007 Ecliptic Y 27.07971950 +/- 0.0006 Ecliptic Z -10.04072969 +/- 0.0002 Ecliptic XDOT -0.00171628 +/- 0.0000 Ecliptic YDOT -0.00175916 +/- 0.0000 Ecliptic ZDOT 0.00055890 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.50883283 +/- 0.0007 Geocenter to KBO 42.78281169 +/- 0.0010 # Hcoef: 8.12
The following table shows the complete astrometric record for 16AQ394. 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 (16AQ394) followed by the observatory code and reference code for the source of the astrometry.
2015 03 22.427677 09 10 10.68 +02 06 02.6 16AQ394 T09 C~89Si 2016 01 12.383413 09 19 53.65 +01 31 45.7 16AQ394 T09 C~89Si 2016 01 12.414662 09 19 53.52 +01 31 46.1 16AQ394 T09 C~89Si 2016 03 07.381552 09 15 54.89 +01 53 13.3 16AQ394 T09 C~89Si 2016 11 28.521946 09 26 40.61 +01 25 58.0 16AQ394 T09 C~89Si 2016 11 29.50349 09 26 39.77 +01 25 46.7 24.5i 16AQ394 T09 C~89Si 2016 11 29.51494 09 26 39.75 +01 25 46.5 25.0i 16AQ394 T09 C~89Si 2016 11 29.64147 09 26 39.65 +01 25 45.2 24.5z 16AQ394 T09 C~89Si 2016 11 29.64415 09 26 39.64 +01 25 45.2 24.3z 16AQ394 T09 C~89Si 2016 11 29.64685 09 26 39.63 +01 25 45.0 24.7z 16AQ394 T09 C~89Si 2016 11 29.64951 09 26 39.63 +01 25 45.0 23.8z 16AQ394 T09 C~89Si 2017 02 01.48691 09 23 19.23 +01 32 09.6 24.2i 16AQ394 T09 C~8HD4 2017 02 01.49516 09 23 19.18 +01 32 09.4 24.3i 16AQ394 T09 C~8HD4 2017 02 01.52816 09 23 19.04 +01 32 10.1 24.1i 16AQ394 T09 C~8HD4 2017 02 01.53643 09 23 18.99 +01 32 10.4 23.9i 16AQ394 T09 C~8HD4 2019 03 08.283422 09 30 39.13 +01 36 19.0 16AQ394 T09 C~89Si 2019 03 08.323421 09 30 38.96 +01 36 20.2 16AQ394 T09 C~89Si
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 0.8103 8958.45 0.13 684.61 -0.04
3 0.8104 8956.47 0.09 684.40 -0.04
4 0.9609 5152.23 -0.00 826.94 -0.02
5 1.6895 14899.00 -0.02 2210.02 -0.03
6 1.6922 14890.39 -0.06 2195.38 0.04
7 1.6922 14890.16 -0.17 2195.10 -0.07
8 1.6926 14889.12 0.13 2193.40 0.17
9 1.6926 14888.98 0.02 2193.35 0.16
10 1.6926 14888.89 -0.04 2193.12 -0.03
11 1.6926 14888.89 -0.01 2193.12 0.01
12 1.8674 11896.20 -0.01 1644.39 0.27
13 1.8674 11895.55 -0.07 1643.97 -0.15
14 1.8675 11893.33 0.11 1644.00 -0.12
15 1.8675 11892.52 -0.10 1644.06 -0.07
16 3.9613 18138.95 0.09 3897.76 0.01
17 3.9614 18136.14 -0.03 3898.13 -0.06
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.
16AQ394 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 40.676 40.696 40.655 ecceobj 0.076 0.076 0.076 incobj 18.952 18.952 18.952 qmin 36.682 36.390 36.738 qmax 44.800 45.282 44.742 amean 40.643 40.708 40.621 amin 40.322 40.339 40.298 amax 40.985 41.089 40.949 emean 0.078 0.083 0.077 emin 0.063 0.062 0.062 emax 0.094 0.104 0.093 imean 19.178 19.149 19.185 imin 18.466 18.362 18.482 imax 19.917 19.895 19.914 excite_mean 0.338 0.338 0.338 fracstop 1.000 1.000 1.000 cjmean 2.929 2.929 2.929 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 183.8 179.9 186.8 kozaiamp 179.9 180.0 180.0