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: 15VN169 # Created Tue Apr 1 01:10:40 2025 # Orbit generated from Bernstein formalism # Fitting 34 observations of 34 # Arc: 1.46y # First observation: 2015/08/12 # Last observation: 2017/01/26 Preliminary a, adot, b, bdot, g, gdot: -0.000095 0.022445 -0.000006 0.002135 0.023543 0.000000 # Chi-squared of fit: 7.42 DOF: 62 RMS: 0.08 # Min/Max residuals: -0.23 0.27 # Exact a, adot, b, bdot, g, gdot: 1.535594E-05 2.205839E-02 1.702413E-06 2.101466E-03 2.327565E-02 1.245499E-03 # Covariance matrix: 2.5714E-13 6.1145E-14 3.3050E-15 2.7665E-14 2.8511E-13 1.2315E-11 6.1145E-14 3.7979E-13 1.6300E-15 4.2227E-14 3.4148E-13 1.8889E-11 3.3050E-15 1.6300E-15 1.0471E-13 -1.0074E-13 4.5830E-15 2.8244E-14 2.7665E-14 4.2227E-14 -1.0074E-13 1.7070E-13 6.2603E-14 3.8661E-12 2.8511E-13 3.4148E-13 4.5830E-15 6.2603E-14 5.6571E-13 2.7945E-11 1.2315E-11 1.8889E-11 2.8244E-14 3.8661E-12 2.7945E-11 1.7327E-09 # lat0 lon0 xBary yBary zBary JD0 -3.061000 48.870403 1.015709 -0.000465 -0.011015 2457247.082569 # Heliocentric elements and errors Epoch: 2457240.5000 = 2015/08/06 Mean Anomaly: 110.33597 +/- 1.389 Argument of Peri: 216.40921 +/- 1.376 Long of Asc Node: 77.13337 +/- 0.005 Inclination: 6.17294 +/- 0.001 Eccentricity: 0.03280962 +/- 0.0017 Semi-Major Axis: 42.45949161 +/- 0.0059 Time of Perihelion: 2426268.0733 +/- 389.9 Perihelion: 41.06641172 +/- 0.0714 Aphelion: 43.85257151 +/- 0.0714 Period (y) 276.6753 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.98773700 +/- 0.0009 Ecliptic Y 31.65502276 +/- 0.0010 Ecliptic Z -2.29410131 +/- 0.0001 Ecliptic XDOT -0.00185151 +/- 0.0000 Ecliptic YDOT 0.00182046 +/- 0.0000 Ecliptic ZDOT 0.00023907 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.98362785 +/- 0.0010 Geocenter to KBO 42.96335543 +/- 0.0014 # Hcoef: 8.27
The following table shows the complete astrometric record for 15VN169. 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 (15VN169) followed by the observatory code and reference code for the source of the astrometry.
2015 08 12.58178 03 09 07.461 +14 29 20.58 24.3w 15VN169 568 C~2nw2 2015 08 12.58594 03 09 07.464 +14 29 20.73 24.4w 15VN169 568 C~2nw2 2015 09 07.54100 03 08 57.197 +14 27 16.76 25.1w 15VN169 568 C~2nw2 2015 09 12.53775 03 08 48.369 +14 26 26.57 25.2w 15VN169 568 C~2nw2 2015 10 07.48475 03 07 35.397 +14 20 34.99 25.1w 15VN169 568 C~2nw2 2015 10 08.48746 03 07 31.593 +14 20 18.02 24.7w 15VN169 568 C~2nw2 2015 10 08.54568 03 07 31.364 +14 20 16.75 25.6w 15VN169 568 C~2nw2 2015 10 08.55734 03 07 31.316 +14 20 16.84 25.1w 15VN169 568 C~2nw2 2015 11 06.30199 03 05 24.175 +14 11 24.26 24.7r 15VN169 568 C~2nw2 2015 11 06.36535 03 05 23.872 +14 11 23.05 24.8r 15VN169 568 C~2nw2 2015 11 06.43596 03 05 23.540 +14 11 21.88 24.3r 15VN169 568 C~2nw2 2015 11 06.50529 03 05 23.172 +14 11 20.44 24.4r 15VN169 568 C~2nw2 2015 11 07.52528 03 05 18.285 +14 11 01.20 24.7w 15VN169 568 C~2nw2 2015 11 17.29127 03 04 31.283 +14 07 59.34 24.3w 15VN169 568 C~2nw2 2015 11 17.34053 03 04 31.042 +14 07 58.51 24.6w 15VN169 568 C~2nw2 2015 12 13.35388 03 02 35.328 +14 01 08.55 25.0w 15VN169 568 C~2nw2 2015 12 13.41241 03 02 35.087 +14 01 07.86 24.7w 15VN169 568 C~2nw2 2016 01 01.40713 03 01 32.384 +13 58 08.07 24.8w 15VN169 568 C~2nw2 2016 01 07.35336 03 01 18.237 +13 57 38.49 24.5w 15VN169 568 C~2nw2 2016 02 04.28349 03 00 54.241 +13 58 33.47 25.0w 15VN169 568 C~2nw2 2016 02 10.27327 03 00 58.705 +13 59 26.97 24.7w 15VN169 568 C~2nw2 2016 09 25.60090 03 13 11.438 +14 51 12.74 25.3w 15VN169 568 C~2nw2 2016 09 26.60873 03 13 08.403 +14 50 58.56 24.8w 15VN169 568 C~2nw2 2016 10 10.53578 03 12 19.592 +14 47 22.27 24.9w 15VN169 568 C~2nw2 2016 10 10.54400 03 12 19.567 +14 47 22.24 24.7w 15VN169 568 C~2nw2 2016 10 10.59276 03 12 19.374 +14 47 21.36 24.6w 15VN169 568 C~2nw2 2016 10 27.51997 03 11 06.377 +14 42 19.84 24.6w 15VN169 568 C~2nw2 2016 10 27.53156 03 11 06.323 +14 42 19.44 24.9w 15VN169 568 C~2nw2 2016 11 03.54499 03 10 33.284 +14 40 09.17 24.8w 15VN169 568 C~2nw2 2016 11 03.55656 03 10 33.226 +14 40 09.00 24.6w 15VN169 568 C~2nw2 2016 12 28.38265 03 06 37.767 +14 26 41.11 25.0w 15VN169 568 C~2nw2 2016 12 29.34821 03 06 34.928 +14 26 33.84 24.6w 15VN169 568 C~2nw2 2017 01 02.35523 03 06 23.926 +14 26 07.78 24.9w 15VN169 568 C~2nw2 2017 01 26.25843 03 05 46.876 +14 25 40.57 24.9w 15VN169 568 C~2nw2
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 -0.08 0.00 -0.06
2 0.0000 0.08 -0.04 0.13 0.09
3 0.0711 -177.00 0.03 -78.91 0.09
4 0.0848 -314.03 0.05 -92.54 -0.03
5 0.1531 -1429.89 0.01 -143.41 0.01
6 0.1558 -1487.71 0.03 -144.71 0.03
7 0.1560 -1491.26 -0.07 -145.02 -0.23
8 0.1560 -1491.90 -0.03 -144.75 0.06
9 0.2347 -3415.69 -0.02 -152.49 -0.12
10 0.2349 -3420.26 0.05 -152.44 -0.16
11 0.2351 -3425.23 0.27 -152.25 -0.05
12 0.2352 -3430.77 -0.18 -152.16 -0.05
13 0.2380 -3504.41 0.06 -151.18 0.02
14 0.2648 -4211.94 0.00 -138.32 0.00
15 0.2649 -4215.54 -0.01 -138.16 0.06
16 0.3361 -5947.94 0.04 -67.50 -0.03
17 0.3363 -5951.51 -0.05 -67.19 0.05
18 0.3883 -6879.08 0.14 13.40 0.16
19 0.4046 -7085.35 -0.17 42.29 0.04
20 0.4810 -7405.91 -0.02 192.48 0.12
21 0.4974 -7328.50 -0.02 225.77 0.08
22 1.1226 3762.92 -0.01 315.06 0.05
23 1.1253 3716.71 -0.10 313.09 -0.06
24 1.1635 2976.66 -0.07 293.17 -0.05
25 1.1635 2976.31 0.07 293.24 0.02
26 1.1636 2973.37 0.09 293.13 -0.04
27 1.2100 1872.27 0.08 285.83 0.04
28 1.2100 1871.40 0.04 285.66 -0.14
29 1.2292 1374.61 -0.05 288.85 0.03
30 1.2292 1373.75 -0.06 288.91 0.08
31 1.3793 -2135.90 0.01 436.94 -0.03
32 1.3820 -2177.56 -0.06 441.20 -0.08
33 1.3929 -2338.44 0.05 459.76 0.10
34 1.4584 -2863.67 0.00 580.77 0.00
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.
15VN169 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.868 42.894 42.844 ecceobj 0.035 0.040 0.031 incobj 6.163 6.163 6.164 qmin 40.370 40.192 40.523 qmax 44.939 45.155 44.671 amean 42.557 42.583 42.534 amin 42.241 42.263 42.209 amax 42.889 42.918 42.861 emean 0.029 0.034 0.025 emin 0.007 0.011 0.003 emax 0.048 0.052 0.043 imean 3.938 3.928 3.947 imin 2.990 2.977 2.998 imax 5.092 5.075 5.104 excite_mean 0.075 0.077 0.074 fracstop 1.000 1.000 1.000 cjmean 3.078 3.078 3.078 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 181.1 181.2 181.2 kozaiamp 179.9 180.0 180.0