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: 15VV169 # Created Tue Apr 1 01:10:40 2025 # Orbit generated from Bernstein formalism # Fitting 33 observations of 33 # Arc: 2.32y # First observation: 2015/08/20 # Last observation: 2017/12/13 Preliminary a, adot, b, bdot, g, gdot: -0.000090 0.019405 -0.000001 0.000999 0.021816 0.000000 # Chi-squared of fit: 7.89 DOF: 60 RMS: 0.09 # Min/Max residuals: -0.35 0.26 # Exact a, adot, b, bdot, g, gdot: 1.377193E-05 1.914101E-02 8.235170E-07 9.855262E-04 2.161883E-02 8.012993E-04 # Covariance matrix: 1.6959E-13 -1.0156E-14 -1.6442E-16 3.8891E-15 1.2261E-13 1.9822E-12 -1.0156E-14 3.2187E-13 -3.9196E-15 1.9934E-14 1.9016E-13 1.0099E-11 -1.6442E-16 -3.9196E-15 8.7025E-14 -6.2277E-14 -2.3909E-15 -1.7174E-13 3.8891E-15 1.9934E-14 -6.2277E-14 8.9670E-14 1.5613E-14 8.6257E-13 1.2261E-13 1.9016E-13 -2.3909E-15 1.5613E-14 2.4568E-13 7.9237E-12 1.9822E-12 1.0099E-11 -1.7174E-13 8.6257E-13 7.9237E-12 4.3695E-10 # lat0 lon0 xBary yBary zBary JD0 -0.659943 54.139454 1.013220 -0.000479 -0.052946 2457255.045359 # Heliocentric elements and errors Epoch: 2457250.5000 = 2015/08/16 Mean Anomaly: 166.42702 +/- 0.710 Argument of Peri: 178.93383 +/- 0.711 Long of Asc Node: 65.54040 +/- 0.003 Inclination: 3.00640 +/- 0.001 Eccentricity: 0.07992039 +/- 0.0002 Semi-Major Axis: 42.96579392 +/- 0.0034 Time of Perihelion: 2409694.6406 +/- 202.9 Perihelion: 39.53195112 +/- 0.0078 Aphelion: 46.39963672 +/- 0.0081 Period (y) 281.6388 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 27.94374428 +/- 0.0006 Ecliptic Y 36.93465996 +/- 0.0009 Ecliptic Z -0.53271037 +/- 0.0000 Ecliptic XDOT -0.00190627 +/- 0.0000 Ecliptic YDOT 0.00149708 +/- 0.0000 Ecliptic ZDOT 0.00012369 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 46.31744521 +/- 0.0008 Geocenter to KBO 46.25598029 +/- 0.0011 # Hcoef: 7.70
The following table shows the complete astrometric record for 15VV169. 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 (15VV169) followed by the observatory code and reference code for the source of the astrometry.
2015 08 20.54457 03 27 45.233 +18 10 01.20 24.7w 15VV169 568 C~2nw3 2015 08 20.55007 03 27 45.237 +18 10 01.25 24.9w 15VV169 568 C~2nw3 2015 09 07.60044 03 27 38.680 +18 09 32.12 24.6w 15VV169 568 C~2nw3 2015 09 12.44733 03 27 32.193 +18 09 07.29 25.1w 15VV169 568 C~2nw3 2015 10 07.49766 03 26 29.672 +18 05 17.64 24.8w 15VV169 568 C~2nw3 2015 10 07.55607 03 26 29.465 +18 05 16.95 24.7w 15VV169 568 C~2nw3 2015 10 09.53675 03 26 22.687 +18 04 52.29 24.6w 15VV169 568 C~2nw3 2015 11 06.31257 03 24 28.553 +17 58 00.95 24.3r 15VV169 568 C~2nw3 2015 11 06.37589 03 24 28.263 +17 57 59.88 23.9r 15VV169 568 C~2nw3 2015 11 06.44667 03 24 27.939 +17 57 58.58 24.5r 15VV169 568 C~2nw3 2015 11 07.46686 03 24 23.270 +17 57 41.99 24.5w 15VV169 568 C~2nw3 2015 11 17.44798 03 23 37.229 +17 54 57.49 24.2w 15VV169 568 C~2nw3 2015 11 17.49527 03 23 37.004 +17 54 56.69 24.3w 15VV169 568 C~2nw3 2015 12 06.31417 03 22 12.306 +17 49 56.58 24.3w 15VV169 568 C~2nw3 2015 12 06.44064 03 22 11.723 +17 49 54.87 24.4w 15VV169 568 C~2nw3 2015 12 06.44787 03 22 11.722 +17 49 54.46 24.9w 15VV169 568 C~2nw3 2015 12 31.33561 03 20 40.101 +17 44 38.63 24.6w 15VV169 568 C~2nw3 2016 01 07.36493 03 20 21.156 +17 43 36.31 25.1w 15VV169 568 C~2nw3 2016 01 07.41708 03 20 21.008 +17 43 35.79 24.8w 15VV169 568 C~2nw3 2016 02 05.31154 03 19 45.897 +17 42 03.84 24.9w 15VV169 568 C~2nw3 2016 02 11.26421 03 19 47.900 +17 42 20.01 24.7w 15VV169 568 C~2nw3 2016 09 07.61412 03 32 04.551 +18 28 48.83 15VV169 568 C~2nw3 2016 09 27.53935 03 31 26.244 +18 26 31.44 24.6w 15VV169 568 C~2nw3 2016 10 09.53365 03 30 49.117 +18 24 20.63 24.6w 15VV169 568 C~2nw3 2016 10 09.60571 03 30 48.862 +18 24 19.74 24.6w 15VV169 568 C~2nw3 2016 11 02.47946 03 29 12.232 +18 18 41.68 24.6w 15VV169 568 C~2nw3 2016 11 04.45547 03 29 03.341 +18 18 10.70 24.5w 15VV169 568 C~2nw3 2016 12 24.34518 03 25 27.596 +18 05 49.79 24.6w 15VV169 568 C~2nw3 2017 01 27.31949 03 24 13.118 +18 01 59.35 24.4w 15VV169 568 C~2nw3 2017 09 16.60340 03 36 19.587 +18 47 00.71 15VV169 568 C~2nw3 2017 09 23.54254 03 36 05.496 +18 46 12.34 15VV169 568 C~2nw3 2017 12 13.36234 03 30 38.959 +18 27 50.94 23.5w 15VV169 568 C~2nw3 2017 12 13.40466 03 30 38.781 +18 27 50.41 24.2w 15VV169 568 C~2nw3
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 -0.02
2 0.0000 0.07 0.09 0.03 0.01
3 0.0494 -97.68 -0.07 -5.28 -0.01
4 0.0627 -193.40 -0.09 -6.65 -0.13
5 0.1313 -1113.82 0.02 -9.78 -0.00
6 0.1314 -1116.86 -0.06 -9.72 0.04
7 0.1369 -1216.60 -0.08 -9.74 -0.00
8 0.2129 -2895.93 0.16 -3.96 0.07
9 0.2131 -2900.20 0.18 -3.96 0.02
10 0.2133 -2905.00 0.19 -4.07 -0.14
11 0.2161 -2973.67 -0.01 -3.50 -0.02
12 0.2434 -3651.15 0.01 1.59 -0.00
13 0.2435 -3654.46 -0.03 1.62 -0.01
14 0.2951 -4900.76 0.05 15.37 -0.04
15 0.2954 -4909.25 -0.35 15.82 0.26
16 0.2954 -4909.37 -0.00 15.42 -0.14
17 0.3636 -6256.29 0.08 41.65 0.05
18 0.3828 -6534.17 0.08 50.32 0.06
19 0.3830 -6536.35 -0.20 50.36 0.03
20 0.4621 -7045.45 0.03 89.54 0.08
21 0.4784 -7013.61 0.01 97.86 0.02
22 1.0515 3856.19 -0.03 199.02 0.01
23 1.1061 3293.94 -0.05 196.41 -0.09
24 1.1389 2749.51 -0.03 196.65 0.01
25 1.1391 2745.78 -0.02 196.66 0.00
26 1.2045 1329.03 -0.05 201.94 -0.03
27 1.2099 1198.68 0.06 202.71 -0.03
28 1.3465 -1963.46 0.02 240.52 -0.01
29 1.4395 -3049.64 0.03 281.90 0.01
30 2.0755 7639.70 -0.04 402.27 -0.08
31 2.0945 7433.54 0.06 402.04 0.03
32 2.3157 2659.97 0.01 435.65 0.01
33 2.3158 2657.38 0.00 435.74 0.06
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.
15VV169 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.338 43.351 43.326 ecceobj 0.073 0.073 0.073 incobj 2.998 2.998 2.998 qmin 39.112 39.128 39.142 qmax 47.190 47.224 47.171 amean 43.046 43.058 43.035 amin 42.722 42.721 42.688 amax 43.393 43.411 43.390 emean 0.067 0.067 0.067 emin 0.045 0.046 0.045 emax 0.088 0.088 0.088 imean 1.194 1.188 1.200 imin 0.020 0.020 0.000 imax 2.118 2.118 2.118 excite_mean 0.071 0.071 0.071 fracstop 1.000 1.000 1.000 cjmean 3.084 3.084 3.084 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 196.4 196.0 195.7 kozaiamp 180.0 180.0 180.0