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: 19WW35 # Created Sun Nov 24 02:11:00 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 62 observations of 62 # Arc: 7.92y # First observation: 2014/10/03 # Last observation: 2022/09/05 # Chi-squared of fit: 38.92 DOF: 118 RMS: 0.14 # Min/Max residuals: -0.70 0.37 # Exact a, adot, b, bdot, g, gdot: 1.789382E-05 3.415148E-02 4.382985E-06 8.713694E-03 3.048355E-02 -1.876855E-03 # Covariance matrix: 3.5505E-13 -1.3454E-13 4.5396E-14 -2.4538E-14 -7.3177E-14 -3.2602E-13 -1.3454E-13 7.3008E-14 -3.0875E-14 1.6090E-14 6.7351E-14 2.1616E-13 4.5396E-14 -3.0875E-14 2.1405E-13 -4.5888E-14 -3.3380E-14 -1.0297E-13 -2.4538E-14 1.6090E-14 -4.5888E-14 1.2342E-14 1.5470E-14 5.3961E-14 -7.3177E-14 6.7351E-14 -3.3380E-14 1.5470E-14 1.2932E-13 2.1577E-13 -3.2602E-13 2.1616E-13 -1.0297E-13 5.3961E-14 2.1577E-13 7.2369E-13 # lat0 lon0 xBary yBary zBary JD0 -21.448565 23.444054 0.238322 -0.356059 -0.906755 2456933.787760 # Heliocentric elements and errors Epoch: 2456934.5000 = 2014/10/04 Mean Anomaly: 341.08900 +/- 0.006 Argument of Peri: 328.64854 +/- 0.009 Long of Asc Node: 77.65284 +/- 0.000 Inclination: 25.02642 +/- 0.000 Eccentricity: 0.15453378 +/- 0.0000 Semi-Major Axis: 39.33801230 +/- 0.0019 Time of Perihelion: 2461668.5074 +/- 6.4 Perihelion: 33.25896047 +/- 0.0021 Aphelion: 45.41706413 +/- 0.0026 Period (y) 246.7328 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.99814804 +/- 0.0003 Ecliptic Y 12.31833903 +/- 0.0002 Ecliptic Z -11.99542227 +/- 0.0001 Ecliptic XDOT -0.00110631 +/- 0.0000 Ecliptic YDOT 0.00286086 +/- 0.0000 Ecliptic ZDOT 0.00079016 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.71241027 +/- 0.0003 Geocenter to KBO 32.80465271 +/- 0.0004 # Hcoef: 8.74
The following table shows the complete astrometric record for 19WW35. 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 (19WW35) followed by the observatory code and reference code for the source of the astrometry.
2014 10 03.286982 01 58 25.315 -10 50 50.82 23.1r 19WW35 W84 C~8HWH 2014 10 03.288021 01 58 25.308 -10 50 50.71 19WW35 W84 C~8Ajc 2014 11 25.215197 01 53 31.633 -11 06 23.27 19WW35 W84 C~8Ajc 2016 10 25.204722 02 09 32.801 -08 37 56.32 23.7g 19WW35 W84 C~8HWH 2016 10 27.196650 02 09 21.130 -08 38 41.60 23.5r 19WW35 W84 C~8HWH 2016 10 27.198028 02 09 21.120 -08 38 41.64 23.3g 19WW35 W84 C~8HWH 2017 08 21.335602 02 20 39.914 -06 47 13.10 19WW35 W84 C~89WY 2017 08 21.337824 02 20 39.893 -06 47 13.12 19WW35 W84 C~89WY 2017 08 21.340185 02 20 39.891 -06 47 13.37 19WW35 W84 C~89WY 2017 08 30.409745 02 20 22.835 -06 52 41.15 19WW35 W84 C~89WY 2017 08 30.411966 02 20 22.851 -06 52 41.55 19WW35 W84 C~89WY 2017 08 30.414329 02 20 22.837 -06 52 41.65 19WW35 W84 C~89WY 2017 09 14.198431 02 19 37.452 -07 02 04.38 23.2i 19WW35 W84 C~8HWH 2017 12 14.065742 02 11 51.413 -07 28 41.48 23.5r 19WW35 W84 C~8HWH 2018 10 10.225417 02 24 10.348 -06 03 59.61 19WW35 W84 C~89WY 2018 10 10.227141 02 24 10.354 -06 03 59.67 19WW35 W84 C~89WY 2018 10 10.228866 02 24 10.346 -06 03 59.68 19WW35 W84 C~89WY 2018 11 29.161829 02 19 28.841 -06 18 15.67 19WW35 W84 C~89WY 2018 11 29.163611 02 19 28.816 -06 18 15.65 19WW35 W84 C~89WY 2018 11 29.163615 02 19 28.826 -06 18 15.80 23.9r 19WW35 W84 C~8HWH 2018 11 29.165336 02 19 28.806 -06 18 15.66 19WW35 W84 C~89WY 2019 10 31.49932 02 28 44.26 -04 59 19.7 23.6z 19WW35 T09 C~85Km 2019 10 31.54341 02 28 44.01 -04 59 20.4 24.0z 19WW35 T09 C~85Km 2019 10 31.56158 02 28 43.89 -04 59 20.9 23.4z 19WW35 T09 C~85Km 2019 11 01.37174 02 28 39.12 -04 59 38.2 25.3g 19WW35 T09 C~85Km 2019 11 01.44090 02 28 38.70 -04 59 39.5 25.4g 19WW35 T09 C~85Km 2019 11 01.45227 02 28 38.63 -04 59 39.5 25.3g 19WW35 T09 C~85Km 2019 11 01.53116 02 28 38.16 -04 59 41.2 25.2g 19WW35 T09 C~85Km 2019 11 01.57590 02 28 37.90 -04 59 42.2 25.0g 19WW35 T09 C~85Km 2019 11 27.21436 02 26 12.47 -05 04 37.3 23.2z 19WW35 T09 C~85Km 2019 11 27.23631 02 26 12.33 -05 04 37.3 23.9z 19WW35 T09 C~85Km 2019 11 27.25830 02 26 12.22 -05 04 37.3 23.6z 19WW35 T09 C~85Km 2019 11 27.28028 02 26 12.09 -05 04 37.3 23.3z 19WW35 T09 C~85Km 2019 11 27.32500 02 26 11.87 -05 04 37.4 23.5i 19WW35 T09 C~85Km 2019 11 27.36927 02 26 11.63 -05 04 37.4 23.9i 19WW35 T09 C~85Km 2019 11 29.33349 02 26 01.54 -05 04 38.3 24.1r 19WW35 T09 C~85Km 2019 11 29.34868 02 26 01.47 -05 04 38.3 24.0r 19WW35 T09 C~85Km 2019 11 29.36287 02 26 01.40 -05 04 38.3 24.2r 19WW35 T09 C~85Km 2019 12 04.20519 02 25 37.55 -05 04 26.9 23.6z 19WW35 T09 C~85Km 2019 12 04.28879 02 25 37.13 -05 04 26.4 23.4z 19WW35 T09 C~85Km 2019 12 04.31090 02 25 37.02 -05 04 26.4 24.0z 19WW35 T09 C~85Km 2019 12 04.32600 02 25 36.95 -05 04 26.3 24.2z 19WW35 T09 C~85Km 2019 12 04.34814 02 25 36.85 -05 04 26.3 23.6z 19WW35 T09 C~85Km 2019 12 04.35514 02 25 36.80 -05 04 26.3 24.0z 19WW35 T09 C~85Km 2019 12 04.40339 02 25 36.57 -05 04 25.9 24.6i 19WW35 T09 C~85Km 2019 12 04.42539 02 25 36.47 -05 04 26.0 24.5i 19WW35 T09 C~85Km 2019 12 04.44037 02 25 36.40 -05 04 25.8 24.1i 19WW35 T09 C~85Km 2019 12 22.27732 02 24 24.29 -05 00 47.6 24.5r 19WW35 T09 C~85Km 2019 12 22.29254 02 24 24.24 -05 00 47.3 24.7r 19WW35 T09 C~85Km 2019 12 22.35833 02 24 24.03 -05 00 45.8 24.7i 19WW35 T09 C~85Km 2020 01 01.28898 02 23 56.85 -04 56 48.1 23.8y 19WW35 T09 C~85Km 2020 01 01.33688 02 23 56.74 -04 56 46.6 23.6y 19WW35 T09 C~85Km 2020 01 01.36270 02 23 56.66 -04 56 46.1 24.0y 19WW35 T09 C~85Km 2020 01 01.36968 02 23 56.64 -04 56 45.8 22.8y 19WW35 T09 C~85Km 2020 01 01.38850 02 23 56.60 -04 56 45.6 23.4y 19WW35 T09 C~85Km 2020 01 01.41047 02 23 56.51 -04 56 44.6 22.8y 19WW35 T09 C~85Km 2022 08 29.348299 02 52 48.374 -00 43 43.12 19WW35 W84 C~89WY 2022 08 29.350498 02 52 48.370 -00 43 43.09 19WW35 W84 C~89WY 2022 08 29.352882 02 52 48.356 -00 43 42.83 19WW35 W84 C~89WY 2022 09 05.325359 02 52 36.286 -00 47 04.57 19WW35 W84 C~89WY 2022 09 05.327581 02 52 36.290 -00 47 04.64 19WW35 W84 C~89WY 2022 09 05.329954 02 52 36.250 -00 47 05.03 19WW35 W84 C~89WY
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 0.01
2 0.0000 0.00 -0.07 0.00 0.16
3 0.1449 0.00 -0.07 0.00 0.04
4 2.0614 0.00 -0.03 0.00 0.01
5 2.0668 0.00 -0.02 0.00 0.03
6 2.0668 0.00 -0.04 0.00 0.02
7 2.8831 0.00 0.19 0.00 0.13
8 2.8831 0.00 -0.08 0.00 0.19
9 2.8831 0.00 -0.06 0.00 0.02
10 2.9079 0.00 -0.19 0.00 0.25
11 2.9079 0.00 0.13 0.00 -0.07
12 2.9079 0.00 0.01 0.00 -0.08
13 2.9484 0.00 0.05 0.00 -0.11
14 3.1972 0.00 -0.02 0.00 0.04
15 4.0190 0.00 -0.19 0.00 -0.04
16 4.0190 0.00 0.04 0.00 -0.04
17 4.0190 0.00 0.06 0.00 0.00
18 4.1557 0.00 0.33 0.00 -0.06
19 4.1557 0.00 0.09 0.00 -0.04
20 4.1557 0.00 0.24 0.00 -0.19
21 4.1557 0.00 0.07 0.00 -0.06
22 5.0766 0.00 0.03 0.00 -0.17
23 5.0767 0.00 0.24 0.00 0.07
24 5.0767 0.00 0.07 0.00 -0.04
25 5.0789 0.00 -0.03 0.00 -0.25
26 5.0791 0.00 -0.09 0.00 -0.11
27 5.0792 0.00 -0.12 0.00 0.12
28 5.0794 0.00 -0.07 0.00 0.05
29 5.0795 0.00 0.04 0.00 -0.02
30 5.1497 0.00 0.24 0.00 -0.16
31 5.1498 0.00 -0.12 0.00 -0.13
32 5.1498 0.00 -0.03 0.00 -0.10
33 5.1499 0.00 -0.23 0.00 -0.06
34 5.1500 0.00 0.02 0.00 -0.10
35 5.1501 0.00 -0.05 0.00 -0.04
36 5.1555 0.00 0.01 0.00 0.10
37 5.1555 0.00 0.14 0.00 0.10
38 5.1556 0.00 0.20 0.00 0.09
39 5.1688 0.00 0.21 0.00 -0.02
40 5.1691 0.00 -0.00 0.00 0.12
41 5.1691 0.00 -0.04 0.00 0.02
42 5.1692 0.00 0.02 0.00 0.05
43 5.1692 0.00 0.13 0.00 -0.05
44 5.1692 0.00 -0.11 0.00 -0.08
45 5.1694 0.00 -0.04 0.00 0.09
46 5.1694 0.00 0.06 0.00 -0.11
47 5.1695 0.00 0.09 0.00 0.02
48 5.2183 0.00 0.00 0.00 -0.09
49 5.2184 0.00 0.02 0.00 -0.09
50 5.2185 0.00 0.18 0.00 0.11
51 5.2457 0.00 0.22 0.00 0.01
52 5.2459 0.00 0.23 0.00 0.17
53 5.2459 0.00 -0.08 0.00 -0.05
54 5.2459 0.00 -0.14 0.00 0.05
55 5.2460 0.00 -0.10 0.00 -0.28
56 5.2461 0.00 -0.70 0.00 0.10
57 7.9043 0.00 -0.02 0.00 -0.05
58 7.9043 0.00 -0.03 0.00 0.04
59 7.9044 0.00 -0.19 0.00 0.37
60 7.9234 0.00 0.05 0.00 0.15
61 7.9235 0.00 0.18 0.00 0.15
62 7.9235 0.00 -0.34 0.00 -0.17
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.