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: 16AG401 # Created Mon Apr 28 01:10:45 2025 # Orbit generated from Bernstein formalism # Fitting 33 observations of 33 # Arc: 4.80y # First observation: 2014/03/21 # Last observation: 2019/01/06 Preliminary a, adot, b, bdot, g, gdot: -0.000161 0.019416 -0.000379 0.008091 0.022825 0.000000 # Chi-squared of fit: 14.49 DOF: 60 RMS: 0.12 # Min/Max residuals: -0.30 0.28 # Exact a, adot, b, bdot, g, gdot: 1.209419E-05 1.825976E-02 5.129033E-06 7.743849E-03 2.381903E-02 -6.557033E-03 # Covariance matrix: 6.9387E-13 -4.7410E-13 1.3575E-13 -1.4264E-13 -2.2759E-13 -3.2463E-12 -4.7410E-13 5.6420E-13 -1.6035E-13 1.7361E-13 1.2630E-14 3.9586E-12 1.3575E-13 -1.6035E-13 1.8493E-13 -1.0350E-13 -1.2767E-14 -1.1896E-12 -1.4264E-13 1.7361E-13 -1.0350E-13 8.4694E-14 9.6144E-15 1.2856E-12 -2.2759E-13 1.2630E-14 -1.2767E-14 9.6144E-15 2.1196E-13 2.1318E-13 -3.2463E-12 3.9586E-12 -1.1896E-12 1.2856E-12 2.1318E-13 2.9311E-11 # lat0 lon0 xBary yBary zBary JD0 -14.033917 136.696487 -0.687077 -0.174282 -0.697761 2456737.674446 # Heliocentric elements and errors Epoch: 2456730.5000 = 2014/03/14 Mean Anomaly: 257.37079 +/- 0.030 Argument of Peri: 103.17135 +/- 0.020 Long of Asc Node: 166.83499 +/- 0.001 Inclination: 26.72661 +/- 0.000 Eccentricity: 0.33594888 +/- 0.0002 Semi-Major Axis: 36.65027142 +/- 0.0035 Time of Perihelion: 2479834.2626 +/- 5.9 Perihelion: 24.33765384 +/- 0.0069 Aphelion: 48.96288900 +/- 0.0080 Period (y) 221.8830 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -30.63702851 +/- 0.0006 Ecliptic Y 27.93028031 +/- 0.0005 Ecliptic Z -10.18058807 +/- 0.0002 Ecliptic XDOT -0.00107011 +/- 0.0000 Ecliptic YDOT -0.00188399 +/- 0.0000 Ecliptic ZDOT 0.00104644 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.68925447 +/- 0.0005 Geocenter to KBO 41.98323499 +/- 0.0008 # Hcoef: 7.60
The following table shows the complete astrometric record for 16AG401. 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 (16AG401) followed by the observatory code and reference code for the source of the astrometry.
2014 03 21.173668 08 59 50.904 +02 25 05.23 22.0i 16AG401 W84 C~8ndf 2015 01 21.45151 09 08 38.92 +02 03 54.2 23.4i 16AG401 T09 C~8ndf 2015 01 21.47876 09 08 38.79 +02 03 54.5 23.6i 16AG401 T09 C~8ndf 2015 01 21.50064 09 08 38.70 +02 03 55.2 23.4i 16AG401 T09 C~8ndf 2015 01 21.52109 09 08 38.58 +02 03 55.3 23.5i 16AG401 T09 C~8ndf 2015 01 21.53742 09 08 38.52 +02 03 55.8 23.5i 16AG401 T09 C~8ndf 2015 01 27.40907 09 08 11.09 +02 05 59.5 23.2y 16AG401 T09 C~8ndf 2015 01 27.44462 09 08 10.95 +02 06 00.6 23.3y 16AG401 T09 C~8ndf 2015 01 27.44739 09 08 10.93 +02 06 00.6 23.0y 16AG401 T09 C~8ndf 2015 01 27.52427 09 08 10.55 +02 06 02.2 23.4y 16AG401 T09 C~8ndf 2015 01 27.53788 09 08 10.48 +02 06 02.6 23.2y 16AG401 T09 C~8ndf 2015 11 08.56283 09 16 11.63 +02 10 56.9 24.4r 16AG401 T09 C~8ndf 2015 11 08.57839 09 16 11.65 +02 10 56.5 24.2r 16AG401 T09 C~8ndf 2015 11 08.59753 09 16 11.66 +02 10 56.2 24.1r 16AG401 T09 C~8ndf 2015 11 08.62712 09 16 11.68 +02 10 55.5 23.9r 16AG401 T09 C~8ndf 2015 11 08.64418 09 16 11.70 +02 10 55.2 24.2r 16AG401 T09 C~8ndf 2015 11 14.59009 09 16 14.60 +02 09 10.2 25.0g 16AG401 T09 C~8ndf 2015 11 14.59294 09 16 14.60 +02 09 10.1 25.0g 16AG401 T09 C~8ndf 2015 11 14.60431 09 16 14.60 +02 09 09.9 25.0g 16AG401 T09 C~8ndf 2015 11 14.60857 09 16 14.61 +02 09 09.9 25.4g 16AG401 T09 C~8ndf 2015 11 14.64069 09 16 14.62 +02 09 09.4 24.6g 16AG401 T09 C~8ndf 2016 01 09.48417 09 14 12.63 +02 07 31.6 23.6y 16AG401 T09 C~8ndf 2016 01 09.50073 09 14 12.55 +02 07 31.9 23.2y 16AG401 T09 C~8ndf 2016 01 09.50616 09 14 12.52 +02 07 31.8 23.5y 16AG401 T09 C~8ndf 2016 01 09.53104 09 14 12.41 +02 07 32.6 23.3y 16AG401 T09 C~8ndf 2016 01 09.55006 09 14 12.33 +02 07 32.4 23.7y 16AG401 T09 C~8ndf 2016 03 07.33926 09 09 50.00 +02 32 16.1 24.2g 16AG401 T09 C~8ndf 2016 03 07.41067 09 09 49.71 +02 32 18.4 24.1g 16AG401 T09 C~8ndf 2016 03 07.41288 09 09 49.71 +02 32 18.4 24.3g 16AG401 T09 C~8ndf 2019 01 06.45393 09 28 44.01 +02 28 05.4 24.6g 16AG401 T09 C~8ndf 2019 01 06.58280 09 28 43.51 +02 28 06.7 24.4g 16AG401 T09 C~8ndf 2019 01 06.59550 09 28 43.45 +02 28 06.9 24.4g 16AG401 T09 C~8ndf 2019 01 06.61492 09 28 43.39 +02 28 07.4 24.6g 16AG401 T09 C~8ndf
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 0.00
2 0.8385 7946.14 -0.06 1083.15 0.01
3 0.8386 7944.18 -0.02 1082.87 -0.22
4 0.8387 7942.68 0.08 1083.14 0.09
5 0.8387 7940.93 -0.18 1082.71 -0.30
6 0.8388 7939.92 0.01 1082.93 -0.06
7 0.8549 7509.94 -0.13 1081.52 -0.18
8 0.8550 7507.60 0.23 1081.96 0.25
9 0.8550 7507.32 0.15 1081.87 0.16
10 0.8552 7501.39 0.03 1081.75 -0.01
11 0.8552 7500.27 -0.06 1081.82 0.06
12 1.6356 14333.65 -0.10 3473.59 0.06
13 1.6356 14334.06 0.06 3473.29 -0.00
14 1.6357 14334.29 -0.01 3473.05 0.04
15 1.6357 14334.78 0.03 3472.47 -0.09
16 1.6358 14335.16 0.14 3472.27 -0.04
17 1.6521 14407.75 -0.09 3384.38 0.04
18 1.6521 14407.78 -0.08 3384.28 -0.02
19 1.6521 14407.83 -0.10 3384.09 -0.04
20 1.6521 14407.98 0.01 3384.13 0.07
21 1.6522 14408.27 0.09 3383.70 0.12
22 1.8051 12680.21 0.22 2753.36 0.04
23 1.8051 12678.97 0.05 2753.30 0.06
24 1.8052 12678.56 0.00 2753.07 -0.14
25 1.8052 12676.75 -0.20 2753.36 0.28
26 1.8053 12675.65 -0.06 2752.81 -0.16
27 1.9635 8470.65 -0.06 3023.44 0.05
28 1.9637 8465.81 -0.06 3024.38 -0.01
29 1.9637 8465.81 0.09 3024.38 -0.04
30 4.7975 24917.81 -0.13 7805.42 0.16
31 4.7978 24910.14 0.10 7804.42 -0.17
32 4.7979 24909.21 -0.06 7804.35 -0.18
33 4.7979 24908.19 0.11 7804.56 0.13
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.
16AG401 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 36.519 36.527 36.510 ecceobj 0.337 0.337 0.336 incobj 26.815 26.815 26.815 qmin 20.766 21.984 20.896 qmax 52.960 52.043 52.964 amean 36.460 36.569 36.290 amin 35.959 35.640 35.440 amax 37.142 37.374 37.052 emean 0.395 0.361 0.390 emin 0.335 0.237 0.315 emax 0.429 0.401 0.429 imean 22.503 24.715 22.934 imin 20.603 23.012 21.195 imax 26.035 29.531 26.538 excite_mean 0.551 0.554 0.552 fracstop 0.199 0.101 0.097 cjmean 2.700 2.696 2.697 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 165.4 185.4 176.8 kozaiamp 179.8 64.5 72.6