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: 15VE168 # Created Mon Apr 28 01:10:40 2025 # Orbit generated from Bernstein formalism # Fitting 35 observations of 35 # Arc: 2.19y # First observation: 2014/11/17 # Last observation: 2017/01/26 Preliminary a, adot, b, bdot, g, gdot: 0.000127 0.035339 -0.000007 -0.001129 0.028259 0.000000 # Chi-squared of fit: 4.86 DOF: 64 RMS: 0.07 # Min/Max residuals: -0.17 0.25 # Exact a, adot, b, bdot, g, gdot: 1.958633E-05 3.595445E-02 -9.069267E-07 -1.149824E-03 2.851371E-02 4.525542E-03 # Covariance matrix: 3.4854E-13 -4.9173E-13 -4.1153E-15 1.1169E-14 -1.8081E-13 -4.4455E-12 -4.9173E-13 9.7747E-13 1.0016E-14 -2.6792E-14 3.8679E-13 1.0727E-11 -4.1153E-15 1.0016E-14 1.9329E-13 -1.2940E-13 4.0662E-15 1.2494E-13 1.1169E-14 -2.6792E-14 -1.2940E-13 1.1182E-13 -1.1729E-14 -3.3220E-13 -1.8081E-13 3.8679E-13 4.0662E-15 -1.1729E-14 2.7248E-13 4.5569E-12 -4.4455E-12 1.0727E-11 1.2494E-13 -3.3220E-13 4.5569E-12 1.3333E-10 # lat0 lon0 xBary yBary zBary JD0 -1.063790 47.382849 -0.124076 -0.018067 -0.981482 2456978.901288 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 6.77498 +/- 0.014 Argument of Peri: 187.18887 +/- 0.050 Long of Asc Node: 198.14361 +/- 0.008 Inclination: 2.10479 +/- 0.000 Eccentricity: 0.48849331 +/- 0.0002 Semi-Major Axis: 68.75583061 +/- 0.0180 Time of Perihelion: 2453051.5626 +/- 8.1 Perihelion: 35.16906740 +/- 0.0162 Aphelion: 102.34259381 +/- 0.0299 Period (y) 570.1282 +/- 0.22 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.31244758 +/- 0.0004 Ecliptic Y 26.61194071 +/- 0.0005 Ecliptic Z -0.65116712 +/- 0.0000 Ecliptic XDOT -0.00225202 +/- 0.0000 Ecliptic YDOT 0.00265078 +/- 0.0000 Ecliptic ZDOT -0.00011835 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 36.05155356 +/- 0.0005 Geocenter to KBO 35.07084602 +/- 0.0006 # Hcoef: 8.55
The following table shows the complete astrometric record for 15VE168. 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 (15VE168) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.40051 03 00 55.219 +16 00 00.13 23.9r 15VE168 568 C~2lVl 2014 11 17.51464 03 00 54.598 +15 59 57.30 24.1r 15VE168 568 C~2lVl 2014 11 19.30670 03 00 44.979 +15 59 16.25 24.2r 15VE168 568 C~2lVl 2014 11 23.41007 03 00 23.194 +15 57 43.40 23.8r 15VE168 568 C~2lVl 2015 08 11.59273 03 14 02.726 +16 52 19.23 24.6w 15VE168 568 C~2lVl 2015 09 06.62350 03 14 05.908 +16 51 26.70 24.5w 15VE168 568 C~2lVl 2015 09 12.51312 03 13 56.562 +16 50 35.91 24.3w 15VE168 568 C~2lVl 2015 10 07.43992 03 12 40.396 +16 44 43.12 24.1w 15VE168 568 C~2lVl 2015 10 07.44703 03 12 40.345 +16 44 43.01 24.3w 15VE168 568 C~2lVl 2015 10 08.45165 03 12 36.196 +16 44 24.74 24.4w 15VE168 568 C~2lVl 2015 10 08.51072 03 12 35.946 +16 44 23.66 24.3w 15VE168 568 C~2lVl 2015 11 07.35903 03 10 08.348 +16 33 56.47 24.0r 15VE168 568 C~2lVl 2015 11 07.40112 03 10 08.114 +16 33 55.50 24.1r 15VE168 568 C~2lVl 2015 11 07.44330 03 10 07.881 +16 33 54.52 24.5r 15VE168 568 C~2lVl 2015 11 10.52886 03 09 51.069 +16 32 44.75 24.5w 15VE168 568 C~2lVl 2015 11 17.37547 03 09 13.749 +16 30 10.67 24.4w 15VE168 568 C~2lVl 2015 11 17.42215 03 09 13.493 +16 30 09.60 24.0w 15VE168 568 C~2lVl 2015 12 06.38432 03 07 34.977 +16 23 29.02 24.2w 15VE168 568 C~2lVl 2015 12 13.31874 03 07 02.804 +16 21 20.40 24.5w 15VE168 568 C~2lVl 2015 12 13.37723 03 07 02.542 +16 21 19.38 24.2w 15VE168 568 C~2lVl 2016 01 01.37186 03 05 52.180 +16 16 45.30 24.3w 15VE168 568 C~2lVl 2016 01 07.31862 03 05 36.680 +16 15 47.85 24.0w 15VE168 568 C~2lVl 2016 02 04.29505 03 05 14.572 +16 14 52.21 24.5w 15VE168 568 C~2lVl 2016 02 04.30157 03 05 14.574 +16 14 52.27 24.5w 15VE168 568 C~2lVl 2016 02 10.28486 03 05 21.343 +16 15 28.14 24.3w 15VE168 568 C~2lVl 2016 09 07.62568 03 22 10.428 +17 18 30.68 24.8w 15VE168 568 C~2lVl 2016 09 26.58416 03 21 28.281 +17 15 08.07 24.4w 15VE168 568 C~2lVl 2016 10 09.54522 03 20 40.717 +17 11 42.95 24.6w 15VE168 568 C~2lVl 2016 10 09.61729 03 20 40.410 +17 11 41.63 23.8w 15VE168 568 C~2lVl 2016 11 02.52573 03 18 44.637 +17 03 47.25 24.2w 15VE168 568 C~2lVl 2016 11 04.40084 03 18 34.608 +17 03 07.01 24.6w 15VE168 568 C~2lVl 2016 12 24.29598 03 14 26.063 +16 47 03.97 24.9w 15VE168 568 C~2lVl 2017 01 02.39822 03 13 55.712 +16 45 13.53 24.5w 15VE168 568 C~2lVl 2017 01 26.32220 03 13 15.212 +16 43 04.73 24.2w 15VE168 568 C~2lVl 2017 01 26.32908 03 13 15.207 +16 43 04.75 24.1w 15VE168 568 C~2lVl
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 0.07 0.00 0.06
2 0.0003 -9.39 0.08 -0.21 -0.14
3 0.0052 -154.03 -0.10 -0.74 0.02
4 0.0165 -481.62 -0.07 -1.71 0.02
5 0.7315 11769.03 -0.01 -66.78 0.00
6 0.8028 11799.28 -0.17 -129.63 0.05
7 0.8189 11655.99 0.09 -143.12 0.02
8 0.8872 10504.50 0.25 -192.90 -0.07
9 0.8872 10503.77 -0.04 -192.81 0.03
10 0.8899 10441.29 -0.04 -194.55 -0.02
11 0.8901 10437.54 -0.01 -194.63 -0.03
12 0.9718 8221.39 0.03 -230.73 0.09
13 0.9719 8217.88 0.00 -230.76 0.07
14 0.9721 8214.39 0.00 -230.80 0.04
15 0.9805 7962.41 -0.05 -232.83 0.02
16 0.9992 7403.29 -0.07 -236.24 -0.00
17 0.9994 7399.45 -0.04 -236.28 -0.04
18 1.0513 5925.11 -0.10 -237.12 0.02
19 1.0703 5444.20 -0.02 -234.59 0.01
20 1.0704 5440.29 0.02 -234.54 0.00
21 1.1224 4390.43 0.02 -220.87 -0.07
22 1.1387 4159.95 -0.13 -214.83 0.00
23 1.2153 3838.44 0.15 -180.78 -0.03
24 1.2153 3838.48 0.12 -180.73 0.01
25 1.2317 3942.10 0.05 -173.06 -0.07
26 1.8076 18970.18 -0.03 -365.61 -0.01
27 1.8595 18329.61 0.09 -407.70 -0.02
28 1.8950 17612.94 0.02 -431.59 0.08
29 1.8952 17608.32 0.01 -431.74 0.04
30 1.9606 15871.18 -0.01 -462.44 -0.03
31 1.9658 15720.97 -0.00 -464.05 -0.04
32 2.1024 12009.63 -0.04 -460.07 -0.02
33 2.1273 11558.57 0.02 -451.25 -0.06
34 2.1928 10961.70 -0.03 -421.08 0.01
35 2.1928 10961.64 -0.05 -421.04 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.
15VE168 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 69.946 70.017 69.876 ecceobj 0.497 0.498 0.497 incobj 2.098 2.098 2.098 qmin 34.338 34.333 34.344 qmax 104.743 104.897 109.795 amean 66.326 68.094 69.568 amin 64.198 66.904 67.028 amax 69.946 70.017 72.522 emean 0.469 0.486 0.494 emin 0.449 0.472 0.474 emax 0.499 0.498 0.514 imean 2.762 2.738 2.957 imin 2.414 2.520 2.420 imax 3.555 3.073 3.614 excite_mean 0.472 0.488 0.497 fracstop 1.000 1.000 1.000 cjmean 3.072 3.068 3.072 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 194.0 180.1 177.4 kozaiamp 180.0 180.0 180.0