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: 15VF169 # Created Wed Dec 25 02:10:31 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 43 observations of 43 # Arc: 8.11y # First observation: 2014/11/17 # Last observation: 2022/12/26 # Chi-squared of fit: 10.36 DOF: 80 RMS: 0.09 # Min/Max residuals: -0.22 0.26 # Exact a, adot, b, bdot, g, gdot: 1.475176E-05 2.118256E-02 6.439148E-07 6.353975E-04 2.283328E-02 1.133464E-03 # Covariance matrix: 1.9379E-13 -1.5809E-13 4.4621E-15 -4.5380E-15 -5.1343E-14 -8.3903E-13 -1.5809E-13 1.6274E-13 -4.7652E-15 4.9843E-15 4.2526E-14 9.1870E-13 4.4621E-15 -4.7652E-15 6.5665E-14 -2.0688E-14 -1.9416E-15 -2.8950E-14 -4.5380E-15 4.9843E-15 -2.0688E-14 1.3790E-14 8.9187E-16 3.1080E-14 -5.1343E-14 4.2526E-14 -1.9416E-15 8.9187E-16 1.1883E-13 1.8721E-13 -8.3903E-13 9.1870E-13 -2.8950E-14 3.1080E-14 1.8721E-13 5.7126E-12 # lat0 lon0 xBary yBary zBary JD0 -2.751365 46.503509 -0.137143 -0.046891 -0.978802 2456978.787348 # Heliocentric elements and errors Epoch: 2456978.5000 = 2014/11/17 Mean Anomaly: 107.90111 +/- 0.083 Argument of Peri: 188.48856 +/- 0.077 Long of Asc Node: 104.09411 +/- 0.005 Inclination: 3.19315 +/- 0.000 Eccentricity: 0.05784310 +/- 0.0001 Semi-Major Axis: 43.86460075 +/- 0.0028 Time of Perihelion: 2425173.6678 +/- 24.7 Perihelion: 41.32733622 +/- 0.0048 Aphelion: 46.40186527 +/- 0.0050 Period (y) 290.5223 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.68217027 +/- 0.0005 Ecliptic Y 32.54029407 +/- 0.0005 Ecliptic Z -2.10226519 +/- 0.0000 Ecliptic XDOT -0.00175082 +/- 0.0000 Ecliptic YDOT 0.00184442 +/- 0.0000 Ecliptic ZDOT 0.00006968 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.77368342 +/- 0.0005 Geocenter to KBO 43.79572095 +/- 0.0007 # Hcoef: 7.75
The following table shows the complete astrometric record for 15VF169. 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 (15VF169) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.28657 02 59 23.570 +14 08 00.29 24.3r 15VF169 568 C~2nw1 2014 11 17.39535 02 59 23.060 +14 07 58.39 24.3r 15VF169 568 C~2nw1 2014 11 17.50914 02 59 22.534 +14 07 56.27 24.2r 15VF169 568 C~2nw1 2014 11 19.30032 02 59 14.398 +14 07 23.25 24.2r 15VF169 568 C~2nw1 2014 11 23.40372 02 58 55.900 +14 06 09.34 24.2r 15VF169 568 C~2nw1 2015 08 11.63062 03 08 35.664 +14 51 51.30 24.1w 15VF169 568 C~2nw1 2015 09 07.53691 03 08 26.148 +14 49 43.74 24.5w 15VF169 568 C~2nw1 2015 09 12.53366 03 08 17.594 +14 48 53.83 24.5w 15VF169 568 C~2nw1 2015 10 07.47747 03 07 07.249 +14 43 05.11 24.3w 15VF169 568 C~2nw1 2015 10 08.48165 03 07 03.581 +14 42 48.11 24.5w 15VF169 568 C~2nw1 2015 10 08.53987 03 07 03.349 +14 42 47.04 24.4w 15VF169 568 C~2nw1 2015 10 08.55151 03 07 03.311 +14 42 46.97 24.5w 15VF169 568 C~2nw1 2015 10 08.56473 03 07 03.260 +14 42 46.71 24.7w 15VF169 568 C~2nw1 2015 11 06.29678 03 05 01.082 +14 33 56.87 24.2r 15VF169 568 C~2nw1 2015 11 06.36009 03 05 00.796 +14 33 55.56 24.4r 15VF169 568 C~2nw1 2015 11 06.43072 03 05 00.433 +14 33 54.25 24.1r 15VF169 568 C~2nw1 2015 11 06.50005 03 05 00.136 +14 33 52.83 24.5r 15VF169 568 C~2nw1 2015 11 07.51946 03 04 55.417 +14 33 33.61 24.4w 15VF169 568 C~2nw1 2015 11 17.29127 03 04 10.252 +14 30 30.71 24.4w 15VF169 568 C~2nw1 2015 11 17.34053 03 04 10.022 +14 30 29.86 24.3w 15VF169 568 C~2nw1 2015 12 13.34802 03 02 18.945 +14 23 30.24 24.5w 15VF169 568 C~2nw1 2015 12 13.35388 03 02 18.918 +14 23 30.18 24.4w 15VF169 568 C~2nw1 2015 12 13.40657 03 02 18.719 +14 23 29.48 24.3w 15VF169 568 C~2nw1 2015 12 13.41241 03 02 18.693 +14 23 29.36 24.4w 15VF169 568 C~2nw1 2016 01 01.40134 03 01 18.510 +14 20 14.21 24.5w 15VF169 568 C~2nw1 2016 01 07.34755 03 01 04.956 +14 19 38.63 24.7w 15VF169 568 C~2nw1 2016 02 04.27768 03 00 41.924 +14 19 54.80 24.5w 15VF169 568 C~2nw1 2016 02 10.26747 03 00 46.219 +14 20 38.21 24.6w 15VF169 568 C~2nw1 2016 09 06.61716 03 13 08.997 +15 11 08.17 15VF169 568 C~2nw1 2016 09 26.60468 03 12 25.166 +15 07 19.14 23.4w 15VF169 568 C~2nw1 2016 10 10.41386 03 11 38.593 +15 03 45.00 24.6w 15VF169 568 C~2nw1 2016 10 10.47261 03 11 38.366 +15 03 44.07 24.7w 15VF169 568 C~2nw1 2016 10 27.51997 03 10 27.725 +14 58 40.84 24.5w 15VF169 568 C~2nw1 2016 10 27.53156 03 10 27.667 +14 58 40.61 24.6w 15VF169 568 C~2nw1 2016 11 03.54499 03 09 55.950 +14 56 30.00 24.1w 15VF169 568 C~2nw1 2016 11 03.55656 03 09 55.899 +14 56 29.82 24.3w 15VF169 568 C~2nw1 2016 12 28.38265 03 06 10.082 +14 42 41.58 25.1w 15VF169 568 C~2nw1 2016 12 29.34821 03 06 07.367 +14 42 33.50 15VF169 568 C~2nw1 2017 01 01.24491 03 05 59.630 +14 42 11.31 23.9w 15VF169 568 C~2nw1 2017 01 02.35523 03 05 56.832 +14 42 03.86 24.5w 15VF169 568 C~2nw1 2017 01 26.25843 03 05 21.409 +14 41 10.09 24.2w 15VF169 568 C~2nw1 2022 12 26.103920 03 34 47.068 +16 46 46.24 24.9G 15VF169 G37 C~69cT 2022 12 26.218870 03 34 46.628 +16 46 45.40 15VF169 G37 C~69cT
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 -0.00 0.00 -0.05
2 0.0003 0.00 -0.08 0.00 0.06
3 0.0006 0.00 -0.04 0.00 0.06
4 0.0055 0.00 0.08 0.00 0.04
5 0.0167 0.00 -0.04 0.00 0.04
6 0.7319 0.00 -0.07 0.00 0.11
7 0.8056 0.00 -0.01 0.00 0.06
8 0.8193 0.00 -0.03 0.00 0.07
9 0.8876 0.00 0.02 0.00 0.08
10 0.8903 0.00 0.01 0.00 -0.04
11 0.8905 0.00 -0.18 0.00 -0.13
12 0.8905 0.00 -0.09 0.00 -0.00
13 0.8906 0.00 -0.11 0.00 -0.04
14 0.9692 0.00 0.11 0.00 -0.00
15 0.9694 0.00 0.26 0.00 -0.12
16 0.9696 0.00 -0.22 0.00 -0.09
17 0.9698 0.00 0.20 0.00 -0.18
18 0.9726 0.00 0.01 0.00 -0.01
19 0.9993 0.00 0.07 0.00 0.00
20 0.9995 0.00 0.07 0.00 0.05
21 1.0707 0.00 0.05 0.00 0.02
22 1.0707 0.00 -0.01 0.00 0.04
23 1.0708 0.00 0.03 0.00 0.04
24 1.0708 0.00 -0.02 0.00 0.00
25 1.1228 0.00 -0.09 0.00 0.01
26 1.1391 0.00 0.04 0.00 0.10
27 1.2156 0.00 0.04 0.00 0.01
28 1.2320 0.00 0.09 0.00 -0.10
29 1.8051 0.00 0.01 0.00 -0.02
30 1.8599 0.00 0.09 0.00 0.11
31 1.8977 0.00 0.02 0.00 0.01
32 1.8978 0.00 0.00 0.00 0.06
33 1.9445 0.00 0.05 0.00 0.04
34 1.9445 0.00 -0.04 0.00 0.03
35 1.9637 0.00 0.06 0.00 -0.03
36 1.9638 0.00 0.11 0.00 0.01
37 2.1139 0.00 -0.04 0.00 0.03
38 2.1165 0.00 -0.03 0.00 -0.07
39 2.1245 0.00 -0.10 0.00 -0.21
40 2.1275 0.00 0.03 0.00 0.02
41 2.1929 0.00 -0.04 0.00 0.00
42 8.1063 0.00 0.18 0.00 -0.11
43 8.1066 0.00 -0.21 0.00 0.15
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.
15VF169 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.212 44.212 44.212 ecceobj 0.060 0.060 0.060 incobj 3.195 3.195 3.195 qmin 40.613 40.615 40.611 qmax 47.372 47.363 47.379 amean 43.889 43.889 43.889 amin 43.539 43.542 43.542 amax 44.249 44.256 44.252 emean 0.054 0.054 0.054 emin 0.037 0.037 0.037 emax 0.071 0.071 0.071 imean 1.618 1.618 1.618 imin 0.888 0.888 0.888 imax 2.238 2.238 2.238 excite_mean 0.062 0.062 0.062 fracstop 1.000 1.000 1.000 cjmean 3.096 3.096 3.096 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 170.4 170.1 170.3 kozaiamp 180.0 180.0 180.0