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: 19WV35 # Created Mon Apr 28 01:11:19 2025 # Orbit generated from Bernstein formalism # Fitting 33 observations of 33 # Arc: 83.84d # First observation: 2019/09/29 # Last observation: 2019/12/22 Preliminary a, adot, b, bdot, g, gdot: -0.000056 0.023158 0.000055 0.005789 0.022508 0.000000 # Chi-squared of fit: 313.44 DOF: 60 RMS: 0.54 # Min/Max residuals: -2.57 0.89 # Exact a, adot, b, bdot, g, gdot: 1.090193E-05 1.821058E-02 3.397655E-07 6.384523E-03 2.179865E-02 4.543496E-03 # Covariance matrix: 6.0790E-13 -5.4440E-12 -4.8588E-14 7.5021E-13 5.2855E-13 2.5173E-10 -5.4440E-12 1.4795E-09 1.7295E-11 -1.8486E-10 1.9629E-10 -1.4804E-08 -4.8588E-14 1.7295E-11 5.2206E-13 -3.9794E-12 2.2929E-12 -1.7873E-10 7.5021E-13 -1.8486E-10 -3.9794E-12 3.5374E-11 -2.3671E-11 2.0872E-09 5.2855E-13 1.9629E-10 2.2929E-12 -2.3671E-11 2.9934E-11 -1.2016E-09 2.5173E-10 -1.4804E-08 -1.7873E-10 2.0872E-09 -1.2016E-09 3.1390E-07 # lat0 lon0 xBary yBary zBary JD0 -17.529653 32.308527 0.439256 -0.270484 -0.856333 2458756.006423 # Heliocentric elements and errors Epoch: 2458750.5000 = 2019/09/24 Mean Anomaly: 82.57948 +/- 3.338 Argument of Peri: 208.22212 +/- 1.825 Long of Asc Node: 72.21246 +/- 0.069 Inclination: 25.49145 +/- 0.032 Eccentricity: 0.22631789 +/- 0.0260 Semi-Major Axis: 45.73928731 +/- 0.4954 Time of Perihelion: 2432832.4587 +/- 959.2 Perihelion: 35.38766815 +/- 1.2474 Aphelion: 56.09090646 +/- 1.3335 Period (y) 309.3444 +/- 5.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 37.96822191 +/- 0.0093 Ecliptic Y 23.48181718 +/- 0.0059 Ecliptic Z -13.81733187 +/- 0.0035 Ecliptic XDOT -0.00054993 +/- 0.0001 Ecliptic YDOT 0.00235396 +/- 0.0000 Ecliptic ZDOT 0.00059253 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 46.73221879 +/- 0.0082 Geocenter to KBO 45.87440545 +/- 0.0115 # Hcoef: 8.91
The following table shows the complete astrometric record for 19WV35. 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 (19WV35) followed by the observatory code and reference code for the source of the astrometry.
2019 09 29.505622 02 24 20.83 -04 13 17.9 19WV35 T09 C~85Km 2019 09 29.542232 02 24 20.72 -04 13 19.3 19WV35 T09 C~85Km 2019 10 23.573248 02 22 44.03 -04 22 44.6 19WV35 T09 C~85Km 2019 10 27.30213 02 22 27.87 -04 23 56.7 25.7r 19WV35 T09 C~8CQ1 2019 10 27.42875 02 22 27.14 -04 24 00.9 26.1i 19WV35 T09 C~8CQ1 2019 10 27.46532 02 22 26.96 -04 24 01.0 25.4i 19WV35 T09 C~8CQ1 2019 10 31.495788 02 22 09.54 -04 25 10.9 19WV35 T09 C~85Km 2019 10 31.539901 02 22 09.35 -04 25 11.8 19WV35 T09 C~85Km 2019 11 27.30664 02 20 17.41 -04 29 46.8 25.3i 19WV35 T09 C~85Km 2019 11 27.31047 02 20 17.38 -04 29 46.6 25.3i 19WV35 T09 C~85Km 2019 11 27.31430 02 20 17.39 -04 29 47.0 25.3i 19WV35 T09 C~85Km 2019 11 27.32876 02 20 17.31 -04 29 47.0 24.7i 19WV35 T09 C~85Km 2019 11 27.33260 02 20 17.30 -04 29 46.8 25.5i 19WV35 T09 C~85Km 2019 11 27.34361 02 20 17.22 -04 29 46.8 25.1i 19WV35 T09 C~85Km 2019 11 27.35091 02 20 17.24 -04 29 46.8 25.8i 19WV35 T09 C~85Km 2019 11 27.35474 02 20 17.21 -04 29 46.8 25.0i 19WV35 T09 C~85Km 2019 11 27.37303 02 20 17.13 -04 29 47.0 25.8i 19WV35 T09 C~85Km 2019 11 27.37685 02 20 17.13 -04 29 47.0 25.2i 19WV35 T09 C~85Km 2019 11 29.32156 02 20 09.79 -04 29 51.8 25.7r 19WV35 T09 C~85Km 2019 11 29.32540 02 20 09.78 -04 29 51.6 25.9r 19WV35 T09 C~85Km 2019 11 29.33101 02 20 09.75 -04 29 52.3 24.6r 19WV35 T09 C~85Km 2019 11 29.35191 02 20 09.68 -04 29 51.6 24.9r 19WV35 T09 C~85Km 2019 11 29.36609 02 20 09.61 -04 29 52.0 25.3r 19WV35 T09 C~85Km 2019 12 04.384992 02 19 51.50 -04 29 53.7 19WV35 T09 C~85Km 2019 12 04.421892 02 19 51.37 -04 29 53.7 19WV35 T09 C~85Km 2019 12 04.454821 02 19 51.24 -04 29 53.6 19WV35 T09 C~85Km 2019 12 22.270297 02 18 58.27 -04 27 57.9 19WV35 T09 C~85Km 2019 12 22.274131 02 18 58.27 -04 27 57.7 19WV35 T09 C~85Km 2019 12 22.28553 02 18 58.23 -04 27 57.2 25.9r 19WV35 T09 C~8CQ1 2019 12 22.28936 02 18 58.19 -04 27 57.6 25.6r 19WV35 T09 C~8CQ1 2019 12 22.30070 02 18 58.17 -04 27 57.6 25.8r 19WV35 T09 C~8CQ1 2019 12 22.304523 02 18 58.20 -04 27 57.5 19WV35 T09 C~85Km 2019 12 22.34698 02 18 58.06 -04 27 56.9 26.0i 19WV35 T09 C~8CQ1
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 0.48 0.00 0.89
2 0.0001 -2.02 0.67 -0.76 0.34
3 0.0659 -1554.22 0.51 -45.83 -0.11
4 0.0761 -1806.09 0.50 -32.38 -0.13
5 0.0764 -1817.78 -2.51 -32.66 -1.01
6 0.0765 -1820.35 -2.57 -31.85 -0.38
7 0.0876 -2089.23 0.43 -10.01 0.14
8 0.0877 -2092.21 0.46 -9.90 -0.03
9 0.1610 -3761.61 0.40 293.84 -0.10
10 0.1610 -3761.96 0.26 294.18 0.18
11 0.1610 -3761.96 0.48 293.75 -0.31
12 0.1610 -3763.09 0.16 294.15 -0.15
13 0.1611 -3763.16 0.30 294.39 0.02
14 0.1611 -3764.29 -0.22 294.79 0.24
15 0.1611 -3764.00 0.47 294.69 0.02
16 0.1611 -3764.43 0.26 294.84 0.10
17 0.1612 -3765.62 0.09 295.06 0.01
18 0.1612 -3765.62 0.30 295.06 -0.05
19 0.1665 -3870.66 0.14 327.40 -0.06
20 0.1665 -3870.73 0.28 327.64 0.11
21 0.1665 -3871.39 -0.08 327.13 -0.50
22 0.1666 -3872.14 0.30 328.14 0.15
23 0.1666 -3873.26 -0.05 328.12 -0.12
24 0.1804 -4129.02 0.19 417.46 -0.12
25 0.1805 -4130.85 0.20 418.12 -0.17
26 0.1806 -4132.65 0.03 418.86 -0.04
27 0.2293 -4840.37 -0.14 793.78 0.01
28 0.2293 -4840.30 0.05 793.97 0.11
29 0.2294 -4840.70 0.01 794.64 0.51
30 0.2294 -4841.39 -0.57 794.47 0.25
31 0.2294 -4841.68 -0.50 794.57 0.08
32 0.2294 -4841.22 0.07 794.51 -0.07
33 0.2295 -4842.99 -0.39 795.78 0.20
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.
19WV35 quality flag:2 Type: SCATNEAR SCATNEAR SCATEXTD axisobj 46.066 47.691 44.958 ecceobj 0.224 0.288 0.160 incobj 25.410 25.448 25.368 qmin 33.695 32.449 36.211 qmax 58.347 64.498 53.448 amean 45.796 47.979 44.670 amin 45.323 46.950 44.292 amax 46.335 48.802 45.092 emean 0.237 0.297 0.168 emin 0.215 0.257 0.151 emax 0.262 0.324 0.186 imean 23.590 23.984 23.795 imin 22.714 23.167 23.290 imax 24.224 25.243 24.275 excite_mean 0.465 0.504 0.437 fracstop 1.000 1.000 1.000 cjmean 2.854 2.830 2.871 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 181.5 188.4 183.4 kozaiamp 180.0 180.0 180.0