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: 15VE170 # Created Wed Apr 24 01:17:40 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 35 observations of 35 # Arc: 8.39y # First observation: 2015/08/20 # Last observation: 2024/01/09 # Chi-squared of fit: 3.59 DOF: 64 RMS: 0.06 # Min/Max residuals: -0.14 0.15 # Exact a, adot, b, bdot, g, gdot: 1.726281E-05 2.939711E-02 -3.133432E-06 -5.049872E-03 2.713778E-02 1.121508E-03 # Covariance matrix: 1.7969E-13 -7.6631E-14 -8.6951E-15 1.6158E-14 8.7961E-14 -3.6092E-13 -7.6631E-14 1.2748E-13 1.6048E-14 -2.5228E-14 2.0522E-14 5.7086E-13 -8.6951E-15 1.6048E-14 6.0078E-14 -1.5218E-14 2.7665E-15 7.6671E-14 1.6158E-14 -2.5228E-14 -1.5218E-14 1.3403E-14 -1.5012E-15 -1.2200E-13 8.7961E-14 2.0522E-14 2.7665E-15 -1.5012E-15 1.1689E-13 3.9367E-14 -3.6092E-13 5.7086E-13 7.6671E-14 -1.2200E-13 3.9367E-14 2.7579E-12 # lat0 lon0 xBary yBary zBary JD0 -1.161491 52.991427 1.011906 -0.001362 -0.073759 2457255.076589 # Heliocentric elements and errors Epoch: 2457254.5000 = 2015/08/20 Mean Anomaly: 3.25944 +/- 0.020 Argument of Peri: 182.51630 +/- 0.027 Long of Asc Node: 224.73459 +/- 0.000 Inclination: 9.84945 +/- 0.000 Eccentricity: 0.13030011 +/- 0.0001 Semi-Major Axis: 42.45388883 +/- 0.0028 Time of Perihelion: 2456339.7223 +/- 5.7 Perihelion: 36.92214225 +/- 0.0033 Aphelion: 47.98563540 +/- 0.0039 Period (y) 276.6205 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 23.02453358 +/- 0.0003 Ecliptic Y 28.86922230 +/- 0.0004 Ecliptic Z -0.74703994 +/- 0.0000 Ecliptic XDOT -0.00230843 +/- 0.0000 Ecliptic YDOT 0.00186093 +/- 0.0000 Ecliptic ZDOT -0.00051160 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 36.93397902 +/- 0.0003 Geocenter to KBO 36.84899518 +/- 0.0005 # Hcoef: 8.00
The following table shows the complete astrometric record for 15VE170. 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 (15VE170) followed by the observatory code and reference code for the source of the astrometry.
2015 08 20.57580 03 23 36.324 +17 23 46.88 24.1w 15VE170 568 C~2nw4 2015 09 07.61675 03 23 30.944 +17 21 58.24 23.8w 15VE170 568 C~2nw4 2015 10 07.52101 03 22 09.809 +17 14 36.68 23.9w 15VE170 568 C~2nw4 2015 10 07.58040 03 22 09.562 +17 14 35.56 23.9w 15VE170 568 C~2nw4 2015 10 09.56029 03 22 01.468 +17 13 56.69 23.8w 15VE170 568 C~2nw4 2015 11 06.33360 03 19 44.702 +17 03 34.05 23.3r 15VE170 568 C~2nw4 2015 11 06.39716 03 19 44.347 +17 03 32.60 23.4r 15VE170 568 C~2nw4 2015 11 06.40423 03 19 44.307 +17 03 32.43 23.7r 15VE170 568 C~2nw4 2015 11 06.47375 03 19 43.927 +17 03 30.81 23.7r 15VE170 568 C~2nw4 2015 11 07.49015 03 19 38.372 +17 03 06.35 23.8w 15VE170 568 C~2nw4 2015 11 17.47779 03 18 43.352 +16 59 05.67 23.7w 15VE170 568 C~2nw4 2015 11 17.56554 03 18 42.845 +16 59 03.64 23.8w 15VE170 568 C~2nw4 2015 12 06.34344 03 17 02.797 +16 51 52.05 23.8w 15VE170 568 C~2nw4 2015 12 06.48092 03 17 02.095 +16 51 49.01 23.9w 15VE170 568 C~2nw4 2016 01 07.39390 03 14 55.656 +16 42 47.61 24.0w 15VE170 568 C~2nw4 2016 02 05.29346 03 14 23.692 +16 40 17.98 23.9w 15VE170 568 C~2nw4 2016 02 11.24684 03 14 28.664 +16 40 33.31 24.0w 15VE170 568 C~2nw4 2016 09 07.60255 03 30 41.316 +17 29 58.39 24.0w 15VE170 568 C~2nw4 2016 09 27.53124 03 29 58.108 +17 25 41.34 23.9w 15VE170 568 C~2nw4 2016 10 07.52165 03 29 22.624 +17 22 46.01 24.1w 15VE170 568 C~2nw4 2016 10 07.61708 03 29 22.223 +17 22 44.34 24.2w 15VE170 568 C~2nw4 2016 10 09.52198 03 29 14.550 +17 22 07.96 23.9w 15VE170 568 C~2nw5 2016 10 09.59415 03 29 14.246 +17 22 06.51 23.6w 15VE170 568 C~2nw5 2016 11 02.47368 03 27 19.217 +17 13 32.36 23.9w 15VE170 568 C~2nw5 2016 11 04.44969 03 27 08.593 +17 12 46.69 23.8w 15VE170 568 C~2nw5 2016 12 28.46047 03 22 37.240 +16 54 05.48 24.0w 15VE170 568 C~2nw5 2016 12 29.39076 03 22 33.896 +16 53 52.00 24.1w 15VE170 568 C~2nw5 2017 01 27.30287 03 21 31.283 +16 49 40.68 24.1w 15VE170 568 C~2nw5 2017 09 16.62789 03 37 39.542 +17 35 32.83 23.6w 15VE170 568 C~2nw5 2017 09 23.56691 03 37 23.978 +17 34 01.21 15VE170 568 C~2nw5 2017 12 13.38599 03 30 57.812 +17 06 38.68 23.9w 15VE170 568 C~2nw5 2017 12 13.42326 03 30 57.622 +17 06 37.83 23.8w 15VE170 568 C~2nw5 2024 01 09.138030 04 12 33.041 +17 29 58.42 23.8G 15VE170 G37 C~7gt1 2024 01 09.251910 04 12 32.608 +17 29 57.60 15VE170 G37 C~7gt1 2024 01 09.366240 04 12 32.170 +17 29 56.60 15VE170 G37 C~7gt1
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 -0.04 0.00 0.03
2 0.0494 0.00 -0.04 0.00 0.04
3 0.1313 0.00 0.04 0.00 0.02
4 0.1314 0.00 -0.00 0.00 0.05
5 0.1369 0.00 0.03 0.00 0.03
6 0.2129 0.00 0.04 0.00 -0.06
7 0.2131 0.00 -0.01 0.00 0.00
8 0.2131 0.00 -0.02 0.00 0.00
9 0.2133 0.00 0.07 0.00 0.05
10 0.2161 0.00 -0.04 0.00 0.03
11 0.2434 0.00 0.10 0.00 -0.04
12 0.2436 0.00 -0.14 0.00 0.06
13 0.2951 0.00 0.04 0.00 -0.02
14 0.2954 0.00 0.06 0.00 -0.09
15 0.3828 0.00 -0.11 0.00 -0.07
16 0.4619 0.00 -0.03 0.00 0.02
17 0.4782 0.00 0.04 0.00 -0.00
18 1.0514 0.00 -0.02 0.00 0.04
19 1.1060 0.00 0.07 0.00 0.05
20 1.1333 0.00 0.15 0.00 -0.11
21 1.1336 0.00 -0.06 0.00 0.03
22 1.1388 0.00 -0.01 0.00 0.04
23 1.1390 0.00 -0.01 0.00 -0.01
24 1.2044 0.00 -0.00 0.00 -0.00
25 1.2098 0.00 0.08 0.00 0.04
26 1.3577 0.00 -0.02 0.00 -0.05
27 1.3602 0.00 0.08 0.00 -0.06
28 1.4394 0.00 0.00 0.00 -0.00
29 2.0754 0.00 -0.06 0.00 -0.03
30 2.0944 0.00 -0.06 0.00 0.00
31 2.3157 0.00 0.06 0.00 0.10
32 2.3158 0.00 -0.02 0.00 -0.05
33 8.3876 0.00 -0.11 0.00 -0.09
34 8.3879 0.00 0.03 0.00 0.05
35 8.3882 0.00 0.06 0.00 0.04
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.
15VE170 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.898 42.898 42.898 ecceobj 0.139 0.139 0.139 incobj 9.811 9.811 9.811 qmin 35.966 35.967 35.966 qmax 49.239 49.239 49.238 amean 42.474 42.474 42.474 amin 42.093 42.083 42.094 amax 42.898 42.898 42.899 emean 0.121 0.121 0.121 emin 0.092 0.093 0.093 emax 0.150 0.150 0.150 imean 11.827 11.824 11.830 imin 10.346 10.346 10.346 imax 13.033 13.010 13.036 excite_mean 0.238 0.238 0.238 fracstop 1.000 1.000 1.000 cjmean 3.015 3.016 3.016 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 180.7 180.8 180.6 kozaiamp 180.0 180.0 180.0