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: 15VV171 # Created Tue Apr 1 01:10:42 2025 # Orbit generated from Bernstein formalism # Fitting 36 observations of 36 # Arc: 3.08y # First observation: 2014/11/17 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: -0.000149 0.025971 0.000004 -0.000841 0.025156 0.000000 # Chi-squared of fit: 13.04 DOF: 66 RMS: 0.11 # Min/Max residuals: -0.32 0.22 # Exact a, adot, b, bdot, g, gdot: 1.602809E-05 2.582539E-02 -8.029294E-07 -8.353147E-04 2.512519E-02 -3.506950E-03 # Covariance matrix: 3.7322E-13 -4.1016E-13 -5.2444E-15 9.8460E-15 -1.7973E-13 -3.8181E-12 -4.1016E-13 5.9687E-13 8.9115E-15 -1.6653E-14 2.9687E-13 6.4662E-12 -5.2444E-15 8.9115E-15 1.8542E-13 -9.2624E-14 4.3490E-15 1.0750E-13 9.8460E-15 -1.6653E-14 -9.2624E-14 5.9527E-14 -9.3426E-15 -2.0011E-13 -1.7973E-13 2.9687E-13 4.3490E-15 -9.3426E-15 2.7898E-13 3.4952E-12 -3.8181E-12 6.4662E-12 1.0750E-13 -2.0011E-13 3.4952E-12 7.7786E-11 # lat0 lon0 xBary yBary zBary JD0 -2.073434 49.145851 -0.094265 -0.035477 -0.984312 2456978.926868 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 317.97559 +/- 0.038 Argument of Peri: 285.50390 +/- 0.070 Long of Asc Node: 181.62593 +/- 0.009 Inclination: 2.73673 +/- 0.000 Eccentricity: 0.17523247 +/- 0.0003 Semi-Major Axis: 46.00364533 +/- 0.0064 Time of Perihelion: 2470274.6139 +/- 11.6 Perihelion: 37.94231316 +/- 0.0154 Aphelion: 54.06497751 +/- 0.0163 Period (y) 312.0302 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 26.58786479 +/- 0.0005 Ecliptic Y 30.89278590 +/- 0.0006 Ecliptic Z -1.44006185 +/- 0.0000 Ecliptic XDOT -0.00238480 +/- 0.0000 Ecliptic YDOT 0.00154452 +/- 0.0000 Ecliptic ZDOT -0.00007704 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.78421941 +/- 0.0006 Geocenter to KBO 39.80069759 +/- 0.0008 # Hcoef: 8.97
The following table shows the complete astrometric record for 15VV171. 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 (15VV171) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.42609 03 09 07.005 +15 30 51.24 24.6r 15VV171 568 C~2nwB 2014 11 19.33914 03 08 57.467 +15 30 12.42 24.8r 15VV171 568 C~2nwB 2014 11 23.44182 03 08 37.178 +15 28 50.45 25.0r 15VV171 568 C~2nwB 2015 09 12.50083 03 19 28.694 +16 10 55.08 25.1w 15VV171 568 C~2nwB 2015 10 08.43421 03 18 14.829 +16 04 54.95 25.3w 15VV171 568 C~2nwB 2015 10 08.49327 03 18 14.616 +16 04 53.90 25.5w 15VV171 568 C~2nwB 2015 11 07.34317 03 15 58.954 +15 55 17.85 24.8r 15VV171 568 C~2nwB 2015 11 07.38533 03 15 58.730 +15 55 17.26 25.3r 15VV171 568 C~2nwB 2015 11 07.42748 03 15 58.503 +15 55 16.27 24.9r 15VV171 568 C~2nwB 2015 11 10.51130 03 15 42.966 +15 54 13.44 24.9w 15VV171 568 C~2nwB 2015 11 17.35801 03 15 08.371 +15 51 55.13 25.3w 15VV171 568 C~2nwB 2015 11 17.40462 03 15 08.118 +15 51 54.12 25.3w 15VV171 568 C~2nwB 2015 12 06.36680 03 13 35.837 +15 45 57.71 25.3w 15VV171 568 C~2nwB 2015 12 13.30120 03 13 05.223 +15 44 04.23 25.3w 15VV171 568 C~2nwB 2015 12 13.35972 03 13 04.968 +15 44 03.24 25.5w 15VV171 568 C~2nwB 2016 01 01.35451 03 11 56.314 +15 40 03.42 25.5w 15VV171 568 C~2nwB 2016 02 04.33458 03 11 10.654 +15 38 29.65 26.5w 15VV171 568 C~2nwB 2016 02 11.22361 03 11 15.435 +15 39 08.34 25.2w 15VV171 568 C~2nwB 2016 09 07.56206 03 25 34.754 +16 31 18.63 15VV171 568 C~2nwB 2016 09 26.62090 03 24 54.528 +16 27 47.15 25.5w 15VV171 568 C~2nwB 2016 10 10.43747 03 24 06.862 +16 24 12.31 25.2w 15VV171 568 C~2nwB 2016 10 10.49616 03 24 06.635 +16 24 11.34 25.1w 15VV171 568 C~2nwB 2016 10 10.51394 03 24 06.570 +16 24 10.99 25.2w 15VV171 568 C~2nwB 2016 11 02.51995 03 22 22.697 +16 17 00.97 25.4w 15VV171 568 C~2nwB 2016 11 04.39506 03 22 13.383 +16 16 23.70 25.1w 15VV171 568 C~2nwB 2016 12 24.33186 03 18 19.296 +16 01 56.35 25.1w 15VV171 568 C~2nwB 2016 12 24.33677 03 18 19.270 +16 01 56.20 25.4w 15VV171 568 C~2nwB 2016 12 28.44224 03 18 05.050 +16 01 09.50 25.5w 15VV171 568 C~2nwB 2017 01 02.43457 03 17 49.567 +16 00 20.48 25.0w 15VV171 568 C~2nwB 2017 01 02.43952 03 17 49.551 +16 00 20.40 25.0w 15VV171 568 C~2nwB 2017 01 26.34976 03 17 06.202 +15 58 35.35 24.8w 15VV171 568 C~2nwB 2017 09 15.58250 03 31 25.828 +16 49 21.55 25.4w 15VV171 568 C~2nwB 2017 09 22.56874 03 31 10.749 +16 48 04.64 25.4w 15VV171 568 C~2nwB 2017 12 13.39528 03 25 08.341 +16 24 33.31 15VV171 568 C~2nwB 2017 12 13.43255 03 25 08.182 +16 24 32.50 25.1w 15VV171 568 C~2nwB 2017 12 16.37785 03 24 55.408 +16 23 49.27 25.0w 15VV171 568 C~2nwB
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 0.06
2 0.0052 -143.22 -0.03 -0.14 0.06
3 0.0165 -447.74 -0.08 0.25 -0.07
4 0.8188 9293.38 -0.20 -51.05 0.11
5 0.8898 8170.08 -0.17 -123.45 0.09
6 0.8900 8166.83 0.07 -123.67 -0.02
7 0.9717 6125.74 0.20 -169.43 -0.24
8 0.9718 6122.47 0.14 -169.15 0.04
9 0.9719 6119.05 -0.06 -169.24 -0.04
10 0.9804 5886.09 -0.13 -171.07 -0.01
11 0.9991 5367.79 0.05 -173.31 -0.01
12 0.9993 5364.00 -0.16 -173.33 -0.04
13 1.0512 3984.63 0.09 -165.37 0.00
14 1.0702 3528.24 -0.04 -157.54 0.06
15 1.0703 3524.43 -0.08 -157.52 -0.01
16 1.1223 2504.75 0.12 -124.77 -0.03
17 1.2154 1844.12 0.22 -38.85 0.12
18 1.2342 1921.02 0.01 -20.06 -0.02
19 1.8074 14718.69 -0.02 -209.22 0.00
20 1.8595 14102.55 0.07 -268.64 0.13
21 1.8974 13381.57 -0.04 -303.64 0.00
22 1.8975 13378.15 0.09 -303.75 -0.01
23 1.8976 13377.15 0.17 -303.85 -0.08
24 1.9606 11816.03 0.12 -340.47 0.10
25 1.9657 11676.40 0.04 -342.33 -0.03
26 2.1024 8185.93 0.06 -312.79 -0.06
27 2.1024 8185.53 -0.07 -312.84 -0.12
28 2.1137 7975.11 -0.20 -304.70 -0.08
29 2.1273 7746.47 0.09 -293.99 -0.09
30 2.1273 7746.23 0.06 -294.01 -0.12
31 2.1928 7114.55 -0.32 -232.54 0.18
32 2.8286 19911.11 0.01 -408.90 -0.05
33 2.8478 19680.27 -0.07 -430.74 0.17
34 3.0718 14246.81 -0.09 -506.82 0.17
35 3.0719 14244.38 -0.03 -507.03 -0.10
36 3.0800 14054.72 0.11 -502.59 -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.
15VV171 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 46.334 46.349 46.319 ecceobj 0.175 0.176 0.175 incobj 2.727 2.727 2.727 qmin 36.976 36.921 37.010 qmax 55.466 55.395 55.351 amean 45.947 45.962 45.931 amin 45.548 45.564 45.535 amax 46.441 46.421 46.405 emean 0.177 0.178 0.176 emin 0.161 0.161 0.161 emax 0.194 0.194 0.193 imean 3.217 3.189 3.239 imin 2.306 2.191 2.412 imax 4.176 4.185 4.169 excite_mean 0.186 0.186 0.185 fracstop 1.000 1.000 1.000 cjmean 3.083 3.082 3.083 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 190.3 188.2 188.2 kozaiamp 179.9 179.9 180.0