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: 15VE165 # Created Sat Apr 20 01:17:37 2024 # Orbit generated from Bernstein formalism # Fitting 31 observations of 31 # Arc: 2.32y # First observation: 2015/08/20 # Last observation: 2017/12/13 Preliminary a, adot, b, bdot, g, gdot: -0.000212 0.035611 0.000000 0.000386 0.030484 0.000000 # Chi-squared of fit: 7.18 DOF: 56 RMS: 0.09 # Min/Max residuals: -0.29 0.18 # Exact a, adot, b, bdot, g, gdot: 1.818872E-05 3.517604E-02 1.398021E-08 3.821995E-04 3.028698E-02 6.035186E-03 # Covariance matrix: 2.2105E-13 -4.5027E-14 -1.4950E-17 6.3447E-16 1.3560E-13 8.9868E-13 -4.5027E-14 4.4116E-13 -1.2303E-15 5.2615E-15 2.0745E-13 7.1673E-12 -1.4950E-17 -1.2303E-15 1.1087E-13 -8.4031E-14 -6.3153E-16 -2.6456E-14 6.3447E-16 5.2615E-15 -8.4031E-14 1.0883E-13 3.3018E-15 1.1345E-13 1.3560E-13 2.0745E-13 -6.3153E-16 3.3018E-15 2.4669E-13 4.5340E-12 8.9868E-13 7.1673E-12 -2.6456E-14 1.1345E-13 4.5340E-12 1.5457E-10 # lat0 lon0 xBary yBary zBary JD0 -0.116934 52.766932 1.011623 -0.000025 -0.077594 2457255.068249 # Heliocentric elements and errors Epoch: 2457250.5000 = 2015/08/16 Mean Anomaly: 32.05205 +/- 0.035 Argument of Peri: 300.94487 +/- 0.069 Long of Asc Node: 61.71683 +/- 0.008 Inclination: 0.62811 +/- 0.001 Eccentricity: 0.21138585 +/- 0.0003 Semi-Major Axis: 39.52424858 +/- 0.0062 Time of Perihelion: 2449169.8326 +/- 8.7 Perihelion: 31.16938155 +/- 0.0133 Aphelion: 47.87911561 +/- 0.0145 Period (y) 248.4870 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 20.82584399 +/- 0.0003 Ecliptic Y 25.73736915 +/- 0.0004 Ecliptic Z -0.06736186 +/- 0.0000 Ecliptic XDOT -0.00220355 +/- 0.0000 Ecliptic YDOT 0.00235202 +/- 0.0000 Ecliptic ZDOT 0.00003349 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.10789160 +/- 0.0004 Geocenter to KBO 33.01748838 +/- 0.0005 # Hcoef: 9.56
The following table shows the complete astrometric record for 15VE165. 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 (15VE165) followed by the observatory code and reference code for the source of the astrometry.
2015 08 20.56746 03 21 35.105 +18 21 01.86 25.0w 15VE165 568 C~2lVZ 2015 09 07.61267 03 21 28.538 +18 20 37.58 25.2w 15VE165 568 C~2lVZ 2015 10 07.53854 03 19 56.722 +18 14 54.62 25.0w 15VE165 568 C~2lVZ 2015 10 07.59790 03 19 56.438 +18 14 53.53 25.2w 15VE165 568 C~2lVZ 2015 10 09.57780 03 19 47.332 +18 14 19.46 24.9w 15VE165 568 C~2lVZ 2015 11 07.33264 03 17 07.841 +18 04 17.24 24.6r 15VE165 568 C~2lVZ 2015 11 07.37479 03 17 07.588 +18 04 16.26 24.8r 15VE165 568 C~2lVZ 2015 11 07.41697 03 17 07.323 +18 04 15.24 24.4r 15VE165 568 C~2lVZ 2015 11 10.49950 03 16 48.379 +18 03 03.39 25.3w 15VE165 568 C~2lVZ 2015 11 17.34635 03 16 06.198 +18 00 22.60 25.0w 15VE165 568 C~2lVZ 2015 11 17.39294 03 16 05.909 +18 00 21.57 24.8w 15VE165 568 C~2lVZ 2015 12 06.35508 03 14 13.444 +17 53 11.15 24.5w 15VE165 568 C~2lVZ 2016 01 01.34294 03 12 13.138 +17 45 29.06 24.9w 15VE165 568 C~2lVZ 2016 01 07.40549 03 11 53.955 +17 44 15.60 25.1w 15VE165 568 C~2lVZ 2016 01 08.25043 03 11 51.604 +17 44 06.93 25.2w 15VE165 568 C~2lVZ 2016 02 05.28189 03 11 21.812 +17 42 20.82 24.5w 15VE165 568 C~2lVZ 2016 02 10.30227 03 11 26.837 +17 42 43.05 24.8w 15VE165 568 C~2lVZ 2016 09 07.59677 03 29 41.685 +18 51 55.45 15VE165 568 C~2lVZ 2016 10 07.51560 03 28 13.569 +18 46 43.82 25.3w 15VE165 568 C~2lVZ 2016 10 09.51605 03 28 04.537 +18 46 11.69 25.6w 15VE165 568 C~2lVZ 2016 10 09.58836 03 28 04.210 +18 46 10.53 25.0w 15VE165 568 C~2lVZ 2016 11 02.47946 03 25 55.483 +18 38 29.40 24.9w 15VE165 568 C~2lVZ 2016 11 02.50259 03 25 55.343 +18 38 28.94 24.9w 15VE165 568 C~2lVZ 2016 11 04.45547 03 25 43.606 +18 37 46.60 25.3w 15VE165 568 C~2lVZ 2016 11 04.47870 03 25 43.462 +18 37 46.04 25.4w 15VE165 568 C~2lVZ 2016 12 28.43500 03 20 42.305 +18 19 28.16 24.9w 15VE165 568 C~2lVZ 2016 12 28.44773 03 20 42.272 +18 19 28.03 24.8w 15VE165 568 C~2lVZ 2017 01 27.31434 03 19 30.993 +18 15 10.76 24.9w 15VE165 568 C~2lVZ 2017 09 15.55809 03 37 41.196 +19 20 55.33 25.1w 15VE165 568 C~2lVa 2017 09 20.60688 03 37 29.787 +19 20 17.30 25.0w 15VE165 568 C~2lVa 2017 12 13.40466 03 30 11.885 +18 55 20.77 24.8w 15VE165 568 C~2lVa
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 0.04
2 0.0494 -96.60 -0.01 0.23 0.07
3 0.1313 -1448.46 -0.07 1.68 0.05
4 0.1315 -1452.65 -0.22 1.66 0.01
5 0.1369 -1586.79 -0.04 1.91 0.08
6 0.2156 -3938.91 0.03 5.86 0.02
7 0.2158 -3942.65 0.15 5.85 -0.03
8 0.2159 -3946.56 0.10 5.84 -0.06
9 0.2243 -4226.22 -0.18 6.61 0.04
10 0.2431 -4849.29 0.03 7.99 -0.04
11 0.2432 -4853.54 0.09 8.07 0.01
12 0.2951 -6516.41 -0.11 13.18 0.04
13 0.3663 -8297.74 -0.01 22.00 -0.04
14 0.3829 -8581.94 0.05 24.09 -0.29
15 0.3852 -8616.68 -0.02 24.67 0.00
16 0.4619 -9056.05 0.05 35.89 -0.18
17 0.4757 -8980.77 0.07 38.16 0.03
18 1.0514 7163.58 0.06 79.27 -0.04
19 1.1333 5873.00 0.09 81.83 0.09
20 1.1388 5740.66 -0.01 82.07 0.10
21 1.1390 5735.87 0.18 82.08 0.08
22 1.2044 3848.69 -0.03 85.62 0.04
23 1.2045 3846.65 -0.00 85.67 0.07
24 1.2098 3674.48 -0.05 86.01 0.05
25 1.2099 3672.36 -0.07 85.97 0.01
26 1.3576 -750.91 -0.14 100.45 -0.04
27 1.3576 -751.40 0.14 100.44 -0.05
28 1.4394 -1798.66 -0.06 111.12 0.02
29 2.0725 14198.14 0.01 158.20 0.04
30 2.0864 14031.47 -0.02 158.62 -0.12
31 2.3158 7629.74 -0.05 174.70 -0.02
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.
15VE165 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.985 40.009 39.960 ecceobj 0.221 0.222 0.220 incobj 0.627 0.627 0.627 qmin 30.607 30.583 30.659 qmax 49.016 48.992 48.810 amean 39.456 39.456 39.456 amin 38.976 38.958 38.982 amax 40.004 40.030 40.001 emean 0.208 0.208 0.207 emin 0.190 0.192 0.191 emax 0.225 0.225 0.223 imean 1.282 1.272 1.301 imin 0.807 0.715 0.935 imax 1.847 1.874 1.650 excite_mean 0.209 0.210 0.208 fracstop 1.000 1.000 1.000 cjmean 3.002 3.001 3.002 libcent 0 180.0 179.9 179.3 libamp 0 97.3 106.9 87.7 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 170.2 165.1 178.8 kozaiamp 180.0 180.0 180.0