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: 15VZ166 # Created Sun Dec 22 02:10:34 2024 # Orbit generated from Bernstein formalism # Fitting 27 observations of 27 # Arc: 3.06y # First observation: 2014/11/23 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: -0.000044 0.025096 -0.000002 0.001904 0.024791 0.000000 # Chi-squared of fit: 11.75 DOF: 48 RMS: 0.12 # Min/Max residuals: -0.29 0.33 # Exact a, adot, b, bdot, g, gdot: 1.625649E-05 2.518705E-02 1.317163E-06 1.912881E-03 2.497360E-02 -2.996537E-04 # Covariance matrix: 8.8406E-13 -9.3923E-13 3.8126E-14 -5.6161E-14 -4.3829E-13 -8.5224E-12 -9.3923E-13 1.1545E-12 -5.0853E-14 7.5022E-14 5.6196E-13 1.1383E-11 3.8126E-14 -5.0853E-14 2.8889E-13 -1.4558E-13 -2.8020E-14 -5.4368E-13 -5.6161E-14 7.5022E-14 -1.4558E-13 9.2364E-14 4.0594E-14 8.0129E-13 -4.3829E-13 5.6196E-13 -2.8020E-14 4.0594E-14 4.5735E-13 6.1667E-12 -8.5224E-12 1.1383E-11 -5.4368E-13 8.0129E-13 6.1667E-12 1.2159E-10 # lat0 lon0 xBary yBary zBary JD0 -1.040915 47.648963 -0.222381 -0.017322 -0.962477 2456984.917208 # Heliocentric elements and errors Epoch: 2456980.5000 = 2014/11/19 Mean Anomaly: 352.58562 +/- 0.366 Argument of Peri: 355.24236 +/- 0.417 Long of Asc Node: 61.09517 +/- 0.002 Inclination: 4.46578 +/- 0.001 Eccentricity: 0.06324417 +/- 0.0001 Semi-Major Axis: 43.74471961 +/- 0.0034 Time of Perihelion: 2459157.0035 +/- 107.6 Perihelion: 40.97812132 +/- 0.0047 Aphelion: 46.51131790 +/- 0.0050 Period (y) 289.3321 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 27.45186919 +/- 0.0007 Ecliptic Y 30.45034060 +/- 0.0008 Ecliptic Z -0.72740343 +/- 0.0000 Ecliptic XDOT -0.00206444 +/- 0.0000 Ecliptic YDOT 0.00183371 +/- 0.0000 Ecliptic ZDOT 0.00021037 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.00435929 +/- 0.0008 Geocenter to KBO 40.04228842 +/- 0.0011 # Hcoef: 9.35
The following table shows the complete astrometric record for 15VZ166. 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 (15VZ166) followed by the observatory code and reference code for the source of the astrometry.
2014 11 23.41643 03 01 57.419 +16 05 46.96 25.2r 15VZ166 568 C~2lVh 2015 08 11.59273 03 12 49.962 +16 56 20.44 26.3w 15VZ166 568 C~2lVh 2015 09 12.51312 03 12 35.378 +16 55 13.73 25.6w 15VZ166 568 C~2lVh 2015 11 07.35903 03 08 58.880 +16 41 09.79 25.0r 15VZ166 568 C~2lVh 2015 11 07.40112 03 08 58.667 +16 41 08.84 25.2r 15VZ166 568 C~2lVh 2015 11 07.44330 03 08 58.456 +16 41 08.06 25.5r 15VZ166 568 C~2lVh 2015 11 10.52886 03 08 42.832 +16 40 08.40 25.4w 15VZ166 568 C~2lVh 2015 11 17.37547 03 08 08.164 +16 37 56.47 25.6w 15VZ166 568 C~2lVh 2015 11 17.42215 03 08 07.926 +16 37 55.65 25.7w 15VZ166 568 C~2lVh 2015 12 13.31874 03 06 06.143 +16 30 21.81 25.6w 15VZ166 568 C~2lVh 2015 12 13.37723 03 06 05.891 +16 30 20.84 26.6w 15VZ166 568 C~2lVh 2016 01 07.31862 03 04 43.967 +16 25 38.00 25.6w 15VZ166 568 C~2lVh 2016 02 10.28486 03 04 22.312 +16 25 33.18 26.0w 15VZ166 568 C~2lVh 2016 09 06.60560 03 18 21.728 +17 24 28.92 25.8w 15VZ166 568 C~2lVh 2016 10 10.40230 03 16 47.025 +17 18 30.15 25.9w 15VZ166 568 C~2lVh 2016 10 10.46065 03 16 46.774 +17 18 29.21 26.1w 15VZ166 568 C~2lVh 2016 11 02.59707 03 15 00.379 +17 11 51.85 25.3w 15VZ166 568 C~2lVh 2016 11 03.51606 03 14 55.788 +17 11 35.00 26.0w 15VZ166 568 C~2lVh 2016 12 24.29598 03 10 59.786 +16 57 21.52 25.1w 15VZ166 568 C~2lVh 2016 12 29.37514 03 10 42.985 +16 56 24.72 25.4w 15VZ166 568 C~2lVh 2017 01 02.39822 03 10 31.137 +16 55 46.18 26.1w 15VZ166 568 C~2lVh 2017 01 26.28489 03 09 50.946 +16 53 59.34 25.6w 15VZ166 568 C~2lVh 2017 09 16.61554 03 23 43.998 +17 51 30.49 25.5w 15VZ166 568 C~2lVh 2017 09 17.60038 03 23 41.853 +17 51 22.86 25.6w 15VZ166 568 C~2lVh 2017 09 23.55460 03 23 27.078 +17 50 29.48 25.8w 15VZ166 568 C~2lVh 2017 09 24.59522 03 23 24.178 +17 50 18.53 24.8w 15VZ166 568 C~2lVh 2017 12 16.39181 03 17 11.235 +17 28 11.86 26.2w 15VZ166 568 C~2lVh
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 -0.06 0.00 -0.02
2 0.7151 9863.03 0.17 362.01 -0.06
3 0.8025 9643.05 0.03 353.37 0.04
4 0.9554 6416.85 -0.06 374.74 0.09
5 0.9555 6413.65 -0.06 374.66 -0.06
6 0.9556 6410.51 0.03 374.72 -0.05
7 0.9640 6178.03 -0.02 378.07 -0.01
8 0.9828 5662.28 -0.04 386.22 0.03
9 0.9829 5658.76 0.01 386.36 0.10
10 1.0538 3849.50 0.07 427.38 0.07
11 1.0540 3845.75 -0.01 427.44 0.00
12 1.1223 2634.63 -0.22 479.37 -0.27
13 1.2152 2333.78 0.33 560.69 0.20
14 1.7883 14912.55 0.02 744.36 -0.07
15 1.8809 13503.38 0.06 750.31 0.10
16 1.8810 13499.65 -0.09 750.34 0.08
17 1.9444 11918.67 -0.22 766.19 -0.09
18 1.9469 11850.54 -0.16 767.25 0.10
19 2.0859 8352.95 -0.03 843.37 0.02
20 2.0998 8105.08 0.03 853.32 -0.25
21 2.1108 7930.70 0.14 861.85 -0.02
22 2.1762 7345.64 0.03 914.15 0.02
23 2.8151 19815.74 -0.01 1136.90 -0.05
24 2.8178 19783.89 0.05 1137.23 0.08
25 2.8341 19564.31 0.15 1138.76 0.17
26 2.8369 19521.09 -0.04 1138.61 -0.29
27 3.0636 13991.85 -0.07 1222.68 0.12
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.
15VZ166 quality flag:2 Type: 7:4EEE CLASSICAL 7:4EEE axisobj 44.094 44.104 44.083 ecceobj 0.070 0.070 0.070 incobj 4.456 4.456 4.456 qmin 40.344 40.056 40.402 qmax 47.396 47.703 47.286 amean 43.726 43.725 43.726 amin 43.365 43.352 43.362 amax 44.119 44.127 44.110 emean 0.062 0.066 0.061 emin 0.050 0.052 0.049 emax 0.075 0.082 0.073 imean 2.951 2.853 2.997 imin 2.162 2.056 2.201 imax 3.684 3.582 3.720 excite_mean 0.081 0.083 0.081 fracstop 1.000 1.000 1.000 cjmean 3.090 3.090 3.090 libcent 0 180.6 -180.0 182.1 libamp 0 167.6 -180.0 152.3 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 175.4 171.0 179.4 kozaiamp 180.0 179.9 180.0