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: 16SQ58 # Created Sun Dec 22 02:10:53 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 45 observations of 45 # Arc: 5.05y # First observation: 2013/10/27 # Last observation: 2018/11/16 # Chi-squared of fit: 10.62 DOF: 84 RMS: 0.09 # Min/Max residuals: -0.25 0.30 # Exact a, adot, b, bdot, g, gdot: 1.882826E-05 3.498605E-02 -5.088331E-06 -1.173649E-02 3.176743E-02 1.026692E-03 # Covariance matrix: 2.7825E-13 -1.7412E-13 -3.9772E-14 4.2090E-14 -1.2368E-14 -7.0432E-13 -1.7412E-13 1.5845E-13 4.3533E-14 -4.7248E-14 3.4925E-14 7.9316E-13 -3.9772E-14 4.3533E-14 1.7756E-13 -6.3238E-14 3.9119E-15 2.4426E-13 4.2090E-14 -4.7248E-14 -6.3238E-14 3.3975E-14 -1.2888E-14 -2.6723E-13 -1.2368E-14 3.4925E-14 3.9119E-15 -1.2888E-14 1.6011E-13 2.3447E-13 -7.0432E-13 7.9316E-13 2.4426E-13 -2.6723E-13 2.3447E-13 4.4905E-12 # lat0 lon0 xBary yBary zBary JD0 -13.820101 24.529592 -0.155425 -0.234170 -0.952434 2456592.630518 # Heliocentric elements and errors Epoch: 2456592.5000 = 2013/10/27 Mean Anomaly: 12.64102 +/- 0.023 Argument of Peri: 200.94914 +/- 0.030 Long of Asc Node: 170.10835 +/- 0.000 Inclination: 22.71361 +/- 0.000 Eccentricity: 0.11390792 +/- 0.0000 Semi-Major Axis: 36.45799300 +/- 0.0022 Time of Perihelion: 2453769.1335 +/- 5.1 Perihelion: 32.30513896 +/- 0.0027 Aphelion: 40.61084703 +/- 0.0030 Period (y) 220.1392 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.63556520 +/- 0.0003 Ecliptic Y 13.24201187 +/- 0.0002 Ecliptic Z -7.51965915 +/- 0.0001 Ecliptic XDOT -0.00139963 +/- 0.0000 Ecliptic YDOT 0.00267689 +/- 0.0000 Ecliptic ZDOT -0.00100321 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 32.43286438 +/- 0.0003 Geocenter to KBO 31.47880172 +/- 0.0004 # Hcoef: 7.82
The following table shows the complete astrometric record for 16SQ58. 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 (16SQ58) followed by the observatory code and reference code for the source of the astrometry.
2013 10 27.12974 01 51 01.363 -03 22 15.60 23.4g 16SQ58 W84 C~4ybt 2013 11 12.18354 01 49 33.003 -03 30 19.90 22.5z 16SQ58 W84 C~4ybt 2013 12 28.10713 01 46 50.632 -03 35 17.01 23.0r 16SQ58 W84 C~4ybt 2013 12 28.10852 01 46 50.636 -03 35 16.95 23.4i 16SQ58 W84 C~4ybt 2014 10 23.29192 01 59 51.887 -03 13 43.83 23.3g 16SQ58 W84 C~4ybt 2014 10 23.29329 01 59 51.867 -03 13 43.95 22.7r 16SQ58 W84 C~4ybt 2014 10 29.26414 01 59 17.763 -03 17 18.01 22.9r 16SQ58 W84 C~4ybt 2015 01 19.05031 01 55 01.564 -03 22 06.21 22.0z 16SQ58 W84 C~4ybt 2015 10 10.520950 02 09 30.002 -02 58 43.43 22.9r 16SQ58 568 C~2TuW 2015 10 10.541921 02 09 29.887 -02 58 44.32 22.8r 16SQ58 568 C~2TuW 2015 10 10.579236 02 09 29.681 -02 58 45.95 22.9r 16SQ58 568 C~2TuW 2015 10 10.603035 02 09 29.553 -02 58 46.94 22.9r 16SQ58 568 C~2TuW 2015 10 14.522734 02 09 08.139 -03 01 32.20 23.4g 16SQ58 568 C~2TuW 2015 10 14.541609 02 09 08.034 -03 01 32.99 23.4g 16SQ58 568 C~2TuW 2015 10 14.543733 02 09 08.022 -03 01 33.07 23.4g 16SQ58 568 C~2TuW 2015 10 14.604810 02 09 07.678 -03 01 35.60 23.4g 16SQ58 568 C~2TuW 2015 12 04.06528 02 04 38.748 -03 24 16.63 22.9i 16SQ58 W84 C~4ybt 2015 12 04.06665 02 04 38.744 -03 24 16.49 22.8r 16SQ58 W84 C~4ybt 2015 12 17.12801 02 03 51.332 -03 24 55.99 22.8i 16SQ58 W84 C~4ybt 2015 12 17.12937 02 03 51.331 -03 24 56.04 22.6r 16SQ58 W84 C~4ybu 2016 09 10.40460 02 20 02.526 -02 30 10.05 23.0i 16SQ58 W84 C~4ybu 2016 09 11.31942 02 19 59.519 -02 30 51.78 22.7r 16SQ58 W84 C~4ybu 2016 09 27.59433 02 18 54.04 -02 43 16.7 23.6g 16SQ58 568 C~2eAJ 2016 09 28.48334 02 18 49.89 -02 43 57.1 23.6g 16SQ58 568 C~2eAJ 2016 09 28.60394 02 18 49.32 -02 44 02.6 23.6g 16SQ58 568 C~2eAJ 2016 09 29.49529 02 18 45.10 -02 44 42.9 23.5g 16SQ58 568 C~2eAJ 2016 09 29.54306 02 18 44.87 -02 44 45.1 23.5g 16SQ58 568 C~2eAJ 2016 09 29.61594 02 18 44.52 -02 44 48.4 23.5g 16SQ58 568 C~2eAJ 2016 11 07.16393 02 15 12.929 -03 09 38.39 22.7i 16SQ58 W84 C~4ybu 2016 11 07.16529 02 15 12.919 -03 09 38.62 22.0z 16SQ58 W84 C~4ybu 2016 12 19.10454 02 12 00.137 -03 18 34.04 23.0r 16SQ58 W84 C~4ybu 2016 12 31.09923 02 11 32.058 -03 16 40.64 23.8g 16SQ58 W84 C~4ybu 2017 09 25.30566 02 27 25.035 -02 34 43.24 23.4g 16SQ58 W84 C~4ybu 2017 10 29.27175 02 24 26.957 -02 58 11.61 22.6r 16SQ58 W84 C~4ybu 2017 10 29.27312 02 24 26.947 -02 58 11.55 22.8i 16SQ58 W84 C~4ybu 2017 10 29.27450 02 24 26.946 -02 58 11.73 23.5g 16SQ58 W84 C~4ybu 2017 11 23.11235 02 22 08.073 -03 09 11.07 22.8z 16SQ58 W84 C~4ybu 2017 11 23.16169 02 22 07.825 -03 09 11.96 22.7i 16SQ58 W84 C~4ybu 2017 11 23.16309 02 22 07.819 -03 09 11.99 23.0r 16SQ58 W84 C~4ybu 2017 11 23.16446 02 22 07.807 -03 09 11.88 23.9g 16SQ58 W84 C~4ybu 2017 12 15.11998 02 20 29.858 -03 12 19.52 22.1z 16SQ58 W84 C~4ybu 2018 09 22.33720 02 35 55.478 -02 25 26.20 23.2z 16SQ58 W84 C~4ybu 2018 10 10.33245 02 34 33.018 -02 38 49.48 22.6i 16SQ58 W84 C~4ybu 2018 10 21.17621 02 33 34.536 -02 46 13.79 22.2Y 16SQ58 W84 C~4ybu 2018 11 16.22466 02 31 05.569 -02 59 58.61 22.5i 16SQ58 W84 C~4ybu
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 -0.22 0.00 -0.25
2 0.0440 0.00 0.01 0.00 -0.03
3 0.1697 0.00 -0.02 0.00 -0.00
4 0.1697 0.00 0.07 0.00 0.04
5 0.9888 0.00 0.30 0.00 -0.06
6 0.9888 0.00 0.12 0.00 -0.13
7 1.0052 0.00 -0.05 0.00 0.03
8 1.2291 0.00 -0.12 0.00 0.04
9 1.9532 0.00 -0.01 0.00 0.10
10 1.9532 0.00 -0.00 0.00 0.11
11 1.9533 0.00 -0.02 0.00 0.08
12 1.9534 0.00 0.01 0.00 0.11
13 1.9641 0.00 -0.01 0.00 0.10
14 1.9642 0.00 0.01 0.00 0.09
15 1.9642 0.00 0.01 0.00 0.10
16 1.9643 0.00 -0.01 0.00 0.10
17 2.1025 0.00 -0.03 0.00 -0.09
18 2.1025 0.00 -0.01 0.00 0.06
19 2.1383 0.00 0.11 0.00 0.02
20 2.1383 0.00 0.15 0.00 -0.03
21 2.8728 0.00 -0.06 0.00 0.06
22 2.8753 0.00 -0.03 0.00 -0.14
23 2.9198 0.00 -0.01 0.00 0.06
24 2.9223 0.00 -0.11 0.00 0.03
25 2.9226 0.00 0.05 0.00 -0.01
26 2.9250 0.00 -0.04 0.00 0.04
27 2.9252 0.00 0.00 0.00 0.00
28 2.9254 0.00 0.08 0.00 -0.01
29 3.0309 0.00 0.03 0.00 0.08
30 3.0309 0.00 0.00 0.00 -0.11
31 3.1457 0.00 -0.14 0.00 -0.08
32 3.1786 0.00 0.09 0.00 -0.06
33 3.9129 0.00 -0.01 0.00 -0.15
34 4.0059 0.00 0.01 0.00 -0.02
35 4.0059 0.00 -0.02 0.00 0.08
36 4.0059 0.00 0.09 0.00 -0.05
37 4.0739 0.00 -0.15 0.00 0.03
38 4.0740 0.00 0.04 0.00 0.00
39 4.0740 0.00 0.06 0.00 -0.00
40 4.0740 0.00 -0.01 0.00 0.13
41 4.1341 0.00 -0.07 0.00 -0.13
42 4.9041 0.00 0.04 0.00 -0.03
43 4.9533 0.00 -0.10 0.00 -0.02
44 4.9830 0.00 0.19 0.00 -0.01
45 5.0543 0.00 0.05 0.00 0.01
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.
16SQ58 quality flag:3 Type: 4:3E 4:3E 4:3E axisobj 36.638 36.638 36.638 ecceobj 0.119 0.119 0.119 incobj 22.656 22.656 22.656 qmin 31.560 31.559 31.561 qmax 41.731 41.732 41.731 amean 36.477 36.477 36.477 amin 36.145 36.145 36.146 amax 36.846 36.846 36.845 emean 0.101 0.101 0.101 emin 0.067 0.067 0.067 emax 0.134 0.134 0.134 imean 22.626 22.626 22.626 imin 21.713 21.713 21.713 imax 23.493 23.493 23.493 excite_mean 0.398 0.398 0.398 fracstop 1.000 1.000 1.000 cjmean 2.846 2.846 2.846 libcent 0 177.1 177.1 177.2 libamp 0 90.6 90.6 90.7 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 179.6 179.6 179.6 kozaiamp 180.0 180.0 179.9