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: 15VV207 # Created Sat Apr 20 01:17:49 2024 # Orbit generated from Bernstein formalism # Fitting 18 observations of 18 # Arc: 3.84y # First observation: 2015/01/13 # Last observation: 2018/11/16 Preliminary a, adot, b, bdot, g, gdot: -0.001349 0.039490 0.000702 0.001349 0.032255 0.000000 # Chi-squared of fit: 7.88 DOF: 30 RMS: 0.12 # Min/Max residuals: -0.24 0.38 # Exact a, adot, b, bdot, g, gdot: 1.928281E-05 3.745051E-02 1.063499E-06 1.289339E-03 2.952703E-02 -5.073716E-03 # Covariance matrix: 8.4754E-13 -7.3270E-13 -9.9824E-14 2.2411E-14 -2.8263E-13 -3.4277E-12 -7.3270E-13 7.8864E-13 5.5143E-14 -3.4691E-14 1.6240E-13 3.8357E-12 -9.9824E-14 5.5143E-14 3.8861E-13 -1.1846E-13 2.3921E-13 5.8755E-13 2.2411E-14 -3.4691E-14 -1.1846E-13 7.4055E-14 2.1489E-14 -1.4752E-13 -2.8263E-13 1.6240E-13 2.3921E-13 2.1489E-14 6.5612E-13 1.6679E-12 -3.4277E-12 3.8357E-12 5.8755E-13 -1.4752E-13 1.6679E-12 2.1534E-11 # lat0 lon0 xBary yBary zBary JD0 -29.001138 5.214936 -0.939037 0.138967 0.250279 2457035.557328 # Heliocentric elements and errors Epoch: 2457030.5000 = 2015/01/08 Mean Anomaly: 351.53145 +/- 0.009 Argument of Peri: 296.58518 +/- 0.023 Long of Asc Node: 91.33394 +/- 0.001 Inclination: 29.34944 +/- 0.000 Eccentricity: 0.40588702 +/- 0.0001 Semi-Major Axis: 55.45467659 +/- 0.0128 Time of Perihelion: 2460578.7336 +/- 3.7 Perihelion: 32.94634322 +/- 0.0105 Aphelion: 77.96300995 +/- 0.0194 Period (y) 412.9671 +/- 0.14 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.12468842 +/- 0.0008 Ecliptic Y 3.60286037 +/- 0.0001 Ecliptic Z -16.41980102 +/- 0.0005 Ecliptic XDOT -0.00067157 +/- 0.0000 Ecliptic YDOT 0.00342073 +/- 0.0000 Ecliptic ZDOT 0.00033275 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.62793398 +/- 0.0007 Geocenter to KBO 33.86727849 +/- 0.0009 # Hcoef: 8.27
The following table shows the complete astrometric record for 15VV207. 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 (15VV207) followed by the observatory code and reference code for the source of the astrometry.
2015 01 13.05655 01 07 52.783 -24 24 21.35 23.8r 15VV207 W84 C~55XF 2015 11 07.25971 01 18 45.836 -24 06 31.31 23.3i 15VV207 W84 C~55XF 2015 11 14.16438 01 18 10.244 -24 05 45.54 24.5g 15VV207 W84 C~55XF 2015 11 14.16575 01 18 10.239 -24 05 45.30 23.8r 15VV207 W84 C~55XF 2015 11 15.19839 01 18 05.141 -24 05 33.30 23.8g 15VV207 W84 C~55XF 2015 11 18.18863 01 17 50.908 -24 04 52.69 24.0g 15VV207 W84 C~55XF 2016 10 05.23216 01 30 24.427 -22 51 56.49 23.5r 15VV207 W84 C~55XF 2016 10 05.23354 01 30 24.435 -22 51 56.59 23.3i 15VV207 W84 C~55XF 2016 10 05.23492 01 30 24.410 -22 51 56.50 24.1g 15VV207 W84 C~55XF 2016 11 05.25898 01 27 22.718 -23 01 15.77 23.4i 15VV207 W84 C~55XF 2016 11 05.26035 01 27 22.710 -23 01 15.76 23.6r 15VV207 W84 C~55XF 2016 11 05.26174 01 27 22.702 -23 01 15.64 23.4g 15VV207 W84 C~55XF 2016 12 02.05486 01 25 17.594 -22 54 42.76 23.6i 15VV207 W84 C~55XF 2016 12 02.05624 01 25 17.589 -22 54 42.74 23.4r 15VV207 W84 C~55XF 2016 12 21.12126 01 24 28.529 -22 41 58.60 24.0g 15VV207 W84 C~55XF 2018 09 09.40833 01 49 21.831 -20 13 43.57 23.5i 15VV207 W84 C~55XF 2018 09 14.37531 01 49 00.935 -20 17 50.39 23.2g 15VV207 W84 C~55XF 2018 11 16.02581 01 43 13.371 -20 43 59.03 23.2i 15VV207 W84 C~55XF
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 0.16 0.00 -0.08
2 0.8164 8483.39 -0.24 -3006.38 0.04
3 0.8353 8068.59 0.02 -2744.89 -0.22
4 0.8353 8068.63 0.15 -2744.65 -0.03
5 0.8382 8011.66 -0.09 -2702.37 0.38
6 0.8464 7855.77 -0.24 -2578.04 -0.08
7 1.7281 19125.46 -0.02 -3477.90 0.03
8 1.7281 19125.51 0.15 -3478.04 -0.12
9 1.7281 19125.24 0.01 -3477.80 0.11
10 1.8130 16626.06 0.02 -2793.48 -0.03
11 1.8130 16625.96 0.02 -2793.41 -0.01
12 1.8130 16625.92 0.08 -2793.26 0.09
13 1.8864 15268.88 -0.05 -1639.50 -0.02
14 1.8864 15268.83 -0.06 -1639.45 -0.04
15 1.9386 15018.20 0.15 -645.71 0.00
16 3.6560 37970.89 0.05 -2851.62 -0.04
17 3.6696 37580.54 -0.06 -2920.85 -0.03
18 3.8411 32411.19 -0.05 -1866.42 0.05
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.
15VV207 quality flag:2 Type: SCATNEAR SCATNEAR 5:2EEE axisobj 56.251 56.286 56.215 ecceobj 0.414 0.414 0.414 incobj 29.364 29.364 29.364 qmin 31.960 32.284 31.504 qmax 80.351 80.080 81.165 amean 55.462 55.490 55.462 amin 54.548 54.552 54.583 amax 56.571 56.532 56.558 emean 0.403 0.393 0.414 emin 0.371 0.357 0.395 emax 0.424 0.418 0.435 imean 27.911 28.445 27.320 imin 27.307 27.684 26.662 imax 29.095 29.580 27.947 excite_mean 0.618 0.618 0.618 fracstop 1.000 1.000 1.000 cjmean 2.738 2.738 2.738 libcent 0 -180.0 -180.0 179.6 libamp 0 -180.0 -180.0 163.2 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 180.7 166.9 202.8 kozaiamp 180.0 180.0 180.0