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: 15VQ165 # Created Sun Dec 22 02:10:33 2024 # Orbit generated from Bernstein formalism # Fitting 41 observations of 41 # Arc: 3.08y # First observation: 2014/11/17 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: -0.000342 0.024456 0.000105 -0.008442 0.026405 0.000000 # Chi-squared of fit: 6.60 DOF: 76 RMS: 0.07 # Min/Max residuals: -0.32 0.15 # Exact a, adot, b, bdot, g, gdot: 1.439480E-05 2.405415E-02 -4.971941E-06 -8.323310E-03 2.628436E-02 -7.469879E-03 # Covariance matrix: 2.3408E-13 -2.5806E-13 -2.9173E-14 5.9080E-14 -1.1074E-13 -2.4605E-12 -2.5806E-13 3.9042E-13 5.3452E-14 -1.0812E-13 1.9456E-13 4.5046E-12 -2.9173E-14 5.3452E-14 1.4406E-13 -9.5505E-14 3.0677E-14 7.3129E-13 5.9080E-14 -1.0812E-13 -9.5505E-14 9.6460E-14 -6.3342E-14 -1.4786E-12 -1.1074E-13 1.9456E-13 3.0677E-14 -6.3342E-14 1.9553E-13 2.6220E-12 -2.4605E-12 4.5046E-12 7.3129E-13 -1.4786E-12 2.6220E-12 6.1611E-11 # lat0 lon0 xBary yBary zBary JD0 -1.376618 48.140976 -0.108909 -0.023481 -0.983183 2456978.777218 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 287.76382 +/- 0.035 Argument of Peri: 288.83773 +/- 0.015 Long of Asc Node: 224.42690 +/- 0.000 Inclination: 19.10502 +/- 0.001 Eccentricity: 0.28148069 +/- 0.0003 Semi-Major Axis: 39.35181102 +/- 0.0072 Time of Perihelion: 2475062.9677 +/- 7.1 Perihelion: 28.27503594 +/- 0.0123 Aphelion: 50.42858609 +/- 0.0144 Period (y) 246.8626 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 25.95248103 +/- 0.0004 Ecliptic Y 29.13423756 +/- 0.0005 Ecliptic Z -0.91421372 +/- 0.0000 Ecliptic XDOT -0.00240334 +/- 0.0000 Ecliptic YDOT 0.00107213 +/- 0.0000 Ecliptic ZDOT -0.00084793 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.02782158 +/- 0.0005 Geocenter to KBO 38.04543865 +/- 0.0006 # Hcoef: 8.16
The following table shows the complete astrometric record for 15VQ165. 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 (15VQ165) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.27644 03 04 18.669 +15 54 37.22 24.2r 15VQ165 568 C~2lVb 2014 11 17.38513 03 04 18.090 +15 54 34.36 24.1r 15VQ165 568 C~2lVb 2014 11 17.49897 03 04 17.487 +15 54 31.42 24.2r 15VQ165 568 C~2lVb 2014 11 19.28749 03 04 08.138 +15 53 44.49 24.1r 15VQ165 568 C~2lVb 2014 11 23.39103 03 03 46.877 +15 51 58.14 23.8r 15VQ165 568 C~2lVb 2015 08 11.59273 03 15 16.284 +16 19 41.91 24.4w 15VQ165 568 C~2lVb 2015 09 06.62350 03 15 13.722 +16 16 15.81 15VQ165 568 C~2lVb 2015 09 06.62757 03 15 13.728 +16 16 15.68 24.6w 15VQ165 568 C~2lVb 2015 09 12.51723 03 15 03.745 +16 14 52.86 24.6w 15VQ165 568 C~2lVb 2015 10 07.45292 03 13 47.308 +16 06 56.33 24.2w 15VQ165 568 C~2lVb 2015 10 08.45753 03 13 43.218 +16 06 33.50 24.3w 15VQ165 568 C~2lVb 2015 10 08.51654 03 13 42.966 +16 06 32.08 24.2w 15VQ165 568 C~2lVb 2015 11 07.36426 03 11 18.566 +15 54 00.81 24.0r 15VQ165 568 C~2lVb 2015 11 07.40638 03 11 18.338 +15 53 59.70 24.0r 15VQ165 568 C~2lVb 2015 11 07.44859 03 11 18.114 +15 53 58.56 24.0r 15VQ165 568 C~2lVb 2015 11 10.53471 03 11 01.690 +15 52 37.12 24.0w 15VQ165 568 C~2lVb 2015 11 17.38127 03 10 25.229 +15 49 37.80 23.8w 15VQ165 568 C~2lVb 2015 11 17.42797 03 10 24.975 +15 49 36.57 24.1w 15VQ165 568 C~2lVb 2015 12 06.39016 03 08 48.281 +15 41 48.57 24.3w 15VQ165 568 C~2lVb 2015 12 13.32462 03 08 16.433 +15 39 15.60 24.2w 15VQ165 568 C~2lVb 2015 12 13.38310 03 08 16.167 +15 39 14.36 24.3w 15VQ165 568 C~2lVb 2016 01 07.32440 03 06 49.175 +15 32 13.14 24.2w 15VQ165 568 C~2lVb 2016 02 04.30735 03 06 20.563 +15 29 24.48 24.0w 15VQ165 568 C~2lVb 2016 02 04.31413 03 06 20.571 +15 29 24.45 24.3w 15VQ165 568 C~2lVb 2016 02 04.32117 03 06 20.580 +15 29 24.13 24.2w 15VQ165 568 C~2lVb 2016 02 04.32803 03 06 20.581 +15 29 24.39 24.3w 15VQ165 568 C~2lVb 2016 02 05.26985 03 06 21.061 +15 29 24.76 24.4w 15VQ165 568 C~2lVb 2016 02 10.29068 03 06 25.218 +15 29 33.85 24.2w 15VQ165 568 C~2lVb 2016 09 06.59240 03 21 19.915 +16 10 04.59 24.3w 15VQ165 568 C~2lVb 2016 09 26.58845 03 20 34.081 +16 04 29.96 24.4w 15VQ165 568 C~2lVb 2016 10 10.39070 03 19 42.670 +15 59 31.40 24.1w 15VQ165 568 C~2lVb 2016 10 10.44903 03 19 42.421 +15 59 30.06 24.3w 15VQ165 568 C~2lVb 2016 11 02.54892 03 17 51.158 +15 49 53.97 24.1w 15VQ165 568 C~2lVb 2016 11 04.42405 03 17 41.288 +15 49 05.31 24.2w 15VQ165 568 C~2lVb 2016 12 24.30148 03 13 36.008 +15 29 54.44 24.3w 15VQ165 568 C~2lVb 2017 01 02.40371 03 13 05.352 +15 27 35.17 24.4w 15VQ165 568 C~2lVb 2017 01 26.29235 03 12 21.862 +15 24 11.08 24.2w 15VQ165 568 C~2lVb 2017 01 26.30729 03 12 21.855 +15 24 11.15 24.3w 15VQ165 568 C~2lVb 2017 09 16.63393 03 27 15.271 +16 00 48.81 15VQ165 568 C~2lVb 2017 09 21.62152 03 27 03.338 +15 59 21.34 24.3w 15VQ165 568 C~2lVb 2017 12 16.35462 03 20 21.894 +15 26 01.22 24.0w 15VQ165 568 C~2lVb
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 0.02 0.00 -0.01
2 0.0003 -8.82 0.01 -0.44 -0.02
3 0.0006 -17.99 0.09 -0.87 0.02
4 0.0055 -160.57 -0.05 -8.73 0.04
5 0.0167 -484.76 -0.02 -26.15 0.02
6 0.7319 9537.92 -0.03 -1107.16 0.05
7 0.8031 9447.91 -0.17 -1296.47 0.12
8 0.8032 9447.96 -0.02 -1296.62 -0.00
9 0.8193 9287.14 0.02 -1338.67 0.01
10 0.8875 8097.11 -0.01 -1507.26 0.08
11 0.8903 8034.13 -0.02 -1513.65 0.06
12 0.8905 8030.25 -0.10 -1514.05 0.00
13 0.9722 5820.73 0.11 -1683.02 -0.01
14 0.9723 5817.26 0.09 -1683.21 -0.01
15 0.9724 5813.84 0.14 -1683.44 -0.05
16 0.9809 5563.53 -0.01 -1698.34 -0.03
17 0.9996 5008.20 0.04 -1729.69 0.00
18 0.9997 5004.34 0.02 -1729.89 -0.01
19 1.0516 3533.27 -0.01 -1803.60 0.07
20 1.0706 3048.93 0.05 -1826.08 -0.02
21 1.0708 3044.89 0.00 -1826.23 -0.01
22 1.1391 1720.61 -0.06 -1889.20 0.04
23 1.2157 1276.67 -0.13 -1938.35 0.06
24 1.2157 1276.78 -0.06 -1938.41 0.01
25 1.2157 1276.81 -0.07 -1938.76 -0.32
26 1.2157 1276.90 -0.02 -1938.51 -0.06
27 1.2183 1283.67 -0.03 -1940.05 -0.13
28 1.2321 1343.96 0.14 -1947.76 0.00
29 1.8051 14462.56 0.04 -3029.67 -0.01
30 1.8599 13734.93 -0.02 -3183.57 -0.05
31 1.8976 12938.50 0.03 -3280.88 -0.01
32 1.8978 12934.67 0.06 -3281.25 -0.02
33 1.9610 11229.18 -0.08 -3420.88 -0.08
34 1.9662 11078.53 0.05 -3430.70 -0.00
35 2.1027 7349.91 0.05 -3607.95 -0.07
36 2.1277 6885.05 -0.06 -3624.32 0.08
37 2.1931 6223.81 -0.03 -3653.31 0.04
38 2.1931 6223.73 0.04 -3653.22 0.15
39 2.8319 19312.01 -0.08 -4872.90 -0.06
40 2.8456 19121.93 0.07 -4914.66 -0.03
41 3.0803 12968.59 -0.00 -5374.20 0.13
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.
15VQ165 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.528 39.546 39.510 ecceobj 0.277 0.277 0.276 incobj 19.034 19.034 19.035 qmin 27.463 27.409 27.751 qmax 51.990 52.109 51.845 amean 39.454 39.454 39.455 amin 38.981 39.002 38.980 amax 40.018 40.020 40.027 emean 0.252 0.250 0.247 emin 0.185 0.187 0.186 emax 0.301 0.304 0.296 imean 21.041 21.101 21.307 imin 19.172 19.019 19.551 imax 23.090 23.002 23.122 excite_mean 0.440 0.440 0.440 fracstop 1.000 1.000 1.000 cjmean 2.829 2.829 2.828 libcent 0 180.3 179.8 179.9 libamp 0 99.5 92.0 108.6 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 273.8 274.7 270.6 kozaiamp 53.5 51.6 54.7